HomeMy WebLinkAboutDraft Environmental Impact Statement (DEIS) - Strong's Yacht Center DRAFT ENVIRONMENTAL IMPACT STATEMENT
Strong's Yacht Center - Proposed Boat Storage Buildings
5780 West Mill Road, Hamlet of Mattituck
Town of Southold, Suffolk County, New York
Lead Agenc
Town of Southold Planning Board
Town Hall Annex
54375 State Route 25
Southold, New York 11971
(631) 765-1938
Prepared B
@) PAJGC
(',LJENVT DWIWEN SO4UTMNS
P.W. Grosser Consulting, Inc.
630 Johnson Avenue, Suite 7
Bohemia, New York 11716
(631) 589-6353
Applicant
Strong's Yacht Center, LLC.
5780 West Mill Road
Mattituck, NY 11952
December 2021
Revised November 2022
IL. I
DRAFT ENVIRONMENTAL IMPACT STATEMENT
Strong's Yacht Center- Proposed Boat Storage Buildings
5780 West Mill Road, Hamlet of Mattituck
Town of Southold,Suffolk County, New York
Lead Agency: Town of Southold Planning Board
Town Hall Annex
54375 Main Road
Southold, New York 11971
(631) 765-1809
Applicant: Strong's Yacht Center, LLC.
5780 West Mill Road
Mattituck, New York 11952
Contact: Charles Cuddy,Esq.
Attorney at Law
P.O. Box 1547
Riverhead, New York 11901
(631) 369-8200
(Attorney for Applicant)
Project Location: 32.96-acre parcel
5780 West Mill Road
Hamlet of Mattituck,Town of Southold
Suffolk County, New York
SCTM Nos: 1000-106-6-10 and 13.4
Prepared by: P.W. Grosser Consulting,Inc.
630 Johnson Avenue, Suite 7
Bohemia, New York 11716
Contact: Kim Gennaro-Oancea, MS,AICP CEP,Vice President
(631) 589-6353
(Environmental and Planning Consultant)
With Technical Assistance From: Young&Young Engineering
400 Ostrander Avenue
Riverhead, New York 11901
Contact: Doug Adams, P.E.
(631) 727-2303
(Site Engineering)
Dunn Engineering Associates,P.C.
66 Main Street
Westhampton Beach,New York 11978
(631) 288-2480
Contact: Ronald Hill, P.E.
(Transportation Engineering)
Jeffrey T. Butler, P.E., P.C.
P.O Box 634
Shoreham, New York 11786
Contact: Jeffrey T. Butler, P.E.
(631) 208-8850
(Architecture)
Land Use Ecological Services
570 Expressway Drive South,Suite 2F
Medford,New York 11763
Contact:William P. Bowman, PhD,
(631) 727-2400
(Ecologist)
SoundSense
39 Industrial Road,Unit 6
P.O. Boz 1360
Wainscott, New York 11975
Contact: Sean Harkin
(631) 537-4220
(Acoustic Consultant)
Carol S.Weed,MA, RPA
Independent Consultant
50 Saw Mill Road#15326
Danbury,CT 06810
Phone: (646) 276-2460
(Archaeologist)
Date of Submission: December 2021, Revised November 2022
Date of Acceptance: March 13, 2023
Date by which comments must be A public hearing on the DEIS will be held on May 15, 2023 at 6:01
submitted: p.m. at the Town of Southold Town Hall, 53095 NYS Route 25,
Southold,NY,at which time verbal and written comments will be
accepted. Written comments on the DEIS will continue to be
accepted at the office of the lead agency for a period of 10 days
after the close of the public hearing, or until a later date that may
be established by the lead agency.
Availability of Document: Copies of the DEIS are available for public review at the Town of
Southold Planning Board,Town Hall Annex, 54375 State Route 25
(corner of Main Road.&Youngs Avenue),Southold,NY, 11971,as
well as at the Southold Library (53705 Main Road Southold, NY
11971), M attituck-Laurel Library (13900 Main Rd, Mattituck, NY
11952) and Cutchogue New Suffolk Free Library(27550 Main Rd,
Cutchogue, NY 11935). The DEIS is also available on the Town of
Southold website at https://www.southoldtownn . ov/.
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
Table of Contents
ExecutiveSummary...............................................................................................................................................................................i
1.0 Description of Proposed Action........................................................................................................................................1
11 Project Location and Site Conditions..................................................................................................................................1
111 Project Location---------------------------------------------------'1
112 Existing Site Conditions.............................................................................................................................................2
1.2 Project Description...................................................................................................................................................................5
1.21 Project Design and Layout........................................................................................................................................5
12.2 Access and Parking......................................................................................................................................................8
12.3 Sanitary Wastewater Disposal and Water Supply............................................................................................9
12.4 Site Landscaping,Lighting and Fencing............................................................................................................11
12.5 Grading and Drainage..............................................................................................................................................12
126 Utilities.........................................................................................................................................................................13
12.7 Solid Waste Management.......................................................................................................................................13
1.3 Project Objective and Benefits...........................................................................................................................................14
1.3.1 Objective of the Proposed Project-----------------------------------------.14
1.3.2 Benefits of the Proposed Project................................---.......................................................................... —14
1.4 Construction and Operations.............................................................................................................................................17
1.4.1 Construction...............................................................................................................................................................17
1.4.2 Operations...................................................................................................................................................................2O
1.5 Required Permits and Approvals......................................................................................................................................21
2.0 Natural Environmental Resources................................................................................................................................22
2.1 Soils and Topography............................................................................................................................................................22
2.1.1 Existing Conditions..................................................................................................................................................22
2.12 Potential Impacts.................................---............................................................................................................32
2.1.3 Proposed Mitigation.------------------------------------------------41
I2Water Resources.....................................................................................................................................................................42
2.21 Existing Conditions..................................................................................................................................................42
2.2.2 Potential Impacts....................................................................................................................—..............................64
2.2.3 Proposed Mitigation.-----------------------------------------------.1O3
2.3 Flooding and Climate Change...........................................................................................................................................1O3
l3.1 Existing Conditions......................................................................................................................................................1O3
l3.2 Potential Impacts......................................................................................................................................................... O8
l3.3 Proposed Mitigation....................................................................................................................................................118
2.4 Ecological Resources...........................................................................................................................................................118
24.1 Existing Conditions................................................................................................................................................118
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
24.3 Proposed Mitigation...............................................................................................................................................143
3.0 Human Environmental Resources..............................................................................................................................146
3.1 Consistency with Community Plans and Studies.......................................................................................................146
3.1] Existing Conditions................................................................................................................................................146
3.1.2 Potential Impacts.................................---..........................................................................................................16O
3.1.3 Proposed Mitigation.-----------------------------------------------.186
3.2 Human Health........................................................................................................................................................................187
3.21 Existing Conditions................................................................................................................................................187
3.2.2 Potential Impacts.................................---..............................................................................— .......................19O
3.2.3 Proposed Mitigation.-----------------------------------------------.191
3.3 Transportation--- --'_-----'--- --'_-----.192
3.3.1 Existing Conditions................................................................................................................................................192
3.3.2 Potential Impacts....................................................................................................................—............................2O3
3.3.3 Proposed Mitigation.-----------------------------------------------.228
3.4 Aesthetic Resources.............................................................................................................................................................229
3.4.1 Existing Conditions................................................................................................................................................229
3.4.2 Potential Impacts.................................---..............................................................................— .......................234
3.4.3 Proposed Mitigation.-----------------------------------------------.240
3.5 Community Character--------------------------------------------------..241
3.5] Existing Conditions................................................................................................................................................241
3.5.2 Potential Impacts.................................---..............................................................................— .......................243
3.5.3 Proposed Mitigation.-----------------------------------------------.245
3.6 Open Space and Recreation...............................................................................................................................................246
3.61 Existing Conditions................................................................................................................................................246
3.62 Potential Impacts....................................................................................................................................................247
3.63 Proposed Mitigation.-----------------------------------------------.25O
3.7 Noise.........................................................................................................................................................................................251
3.7.1 Existing Conditions................................................................................................................................................251
3.7.2 Potential Impacts................................---..............................................................................— .......................256
3.7.3 Proposed Mitigation.-----------------------------------------------.26O
3.8 Air Quality...............................................................................................................................................................................261
3.8.1 Existing Conditions................................................................................................................................................261
3.8.2 Potential Impacts....................................................................................................................................................261
3.8.3 Proposed Mitigation.-----------------------------------------------.273
3.9 Social and Economic Impacts----------------------------------------------.274
3.9.1 Existing Conditions................................................................................................................................................274
3.9.2 Potential Impacts.................................................................................................................................................... 78
ii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.9.3 Proposed Mitigation...............................................................................................................................................283
3.10 Construction-Related Impacts.......................................................................................................................................284
3.10.1 Purpose and Need for the Proposed Excavation Program........................................................................284
3.10.2 Description of Proposed Construction Schedule and Activities..............................................................284
3.10.3 Potential Impacts....................................................................................................................................................287
3.10.4 Proposed Mitigation...............................................................................................................................................298
3.11 Archaeological and Cultural Resources......................................................................................................................302
3.11.1 Existing Conditions................................................................................................................................................302
3.11.2 Potential Impacts....................................................................................................................................................307
3.11.3 Proposed Mitigation...............................................................................................................................................308
4.0 Other Required Sections.................................................................................................................................................309
4.1 Use and Conservation of Energy......................................................................................................................................309
4.2 Unavoidable Impacts(Short-Term and Long Term)................................................................................................309
4.3 Irretrievable and Irreversible Commitment of Resources.....................................................................................310
4.4 Growth-Inducing Impacts..................................................................................................................................................311
5.0 Alternatives and Their Impacts....................................................................................................................................313
5.1 Alternative 1: As-of-Right(No-Action)Alternative.................................................................................................315
5.2 Alternative 2: Alternate Material Removal Plan,Including Barge Transport and On-Site Processing...315
5.3 Alternative 3: Construct Project on Another Parcel................................................................................................316
5.4 Alternative 4: Construct Proposed Storage Building(s)Without Excavation.................................................316
5.5 Alternative 5: Construct Smaller Building(s)With Less Excavation..................................................................335
5.6 Alternative 6: Reconfiguration or Reconstruction of Existing Buildings for Larger Boat Storage..........336
6.0 References...........................................................................................................................................................................340
iii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
LIST OF APPENDICES
Volume 1 of 3
Appendix A- Figures
Appendix B- Town SEQR Documents
Appendix C- Site Development Plans,as prepared by Young&Young Engineering;and Proposed Landscape
Plan,as prepared by Jeffery T.Butler,P.E.,P.C.
Appendix D- Architectural Elevations,as prepared by Jeffrey T.Butler,P.E.,P.C.
Volume 2 of 3
Appendix E- Tax Revenue Projections from Southold Town Assessor and Marina Impact Analysis
Appendix F- Construction Schedule and Details,as prepared by Red Rock Industries,Inc.
Appendix G- Photographs of Site and Surrounding Area
Appendix H- Structural and Design Report for Proposed Retaining Wall, Geotechnical Borings and
Engineering Assessment Memo Report (PWGC - July 2021), Soil Borings (McDonald
Geoscience-September 2018),and Soil Analytics(EnviroScience-September 2020)
Appendix I- NYSDEC Tidal Wetlands Permit and Non-jurisdictional Determination, issued January 31,
2020 and correspondence to NYSDEC (Mr. Robert W. Yager, Mined Land Reclamation
Specialist,11)dated April 19,2021
Appendix J- SCDHS Article 6 Documentation,Notices and Existing Facility Permits
Appendix K- Correspondence with Suffolk County Water Authority
Appendix L- Groundwater Modeling Report, as prepared by PWGC and Environmental Data Resources
(EDR) Database Report(existing groundwater quality)
Appendix M- Boat(Vessel)Study,revised August 2022,as prepared by PWGC
Appendix N- Ecological Conditions and Impact Analysis, revised October 2022, as prepared by Land Use
Ecological Services
Volume 3 of 3
Appendix 0- Traffic Impact Study,Revised October 2022,as prepared by Dunn Engineering and Stonefield
Engineering
Appendix P- Correspondence with Mattituck Fire Department, Town of Southold Fire Marshal, and
Proposed Fire Safety Plan;and Projected Electrical Load
Appendix Q- Viewpoints (Existing Conditions) and Post-Development Renderings, as prepared by Jeffrey
T.Butler,P.E.,P.C.
Appendix R- Acoustic Report,Revised Nov.2022 and Vibration Report,as prepared by Sound Sense
Appendix S- Air Quality Evaluation,as prepared by PWGC
Appendix T- Cultural Resources (Historic and Archaeology) Reports, Documentation, and Agency
Correspondence
Appendix U- Documentation for Alternate Material Handling, including Barging Material Off-Site (H&L
Contracting correspondence dated June 24,2021)and Sand Calculations from LI Precast
Appendix V- Alternative Site Development Plan, as prepared by Young & Young Engineering, with
Renderings,as prepared by Jeff Butler,P.E.,P.C.
iv
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
LIST OF TABLES
Table 1-2O%O Yacht Inventory atSYC.........................................................................................................................3
Table 2-Site Data for Subject Property(32.96±acnes): Existing and Post-Development Conditions...7
Table 3-Site Data for Project Area (6.S1±acces): Existing and Post-Development Conditions..............8
Table 4-Typical Yachts tobo Stored atSYC Under Proposed Action.............................................................2O
Table G-Required Permits and Approvals..............................................................................................................21
Table 6-Soil Types Mapped ou Subject Property.................................................................................................23
Table 7-Soil Engineering and Planning Limitations............................................................................................26
Table8-Existing Slopes..................................................................................................................................................31
Table 9-Sieve Analysis Sample Results....................................................................................................................36
Table 1O-Soil Type Breakdown of Cut Volume......................................................................................................37
Table 11'Post-Development Slope Breakdown within Project Area.............................................................4O
Table 12-Water Source for Surrounding Properties within 500-foot Radius of Subject Site...............47
Table 13-On-Site Stored Chemicals for Boat Maintenance,Repair and Detailing....................................52
Table14-Irrigation Demand........................................................................................................................................74
Table 1S-Minimum Horizontal and Vertical Separation Distances for|/&0VV?S.-----------'76
Table 16-6NYCRR Part 49O New York State Sea Level Rise Projections: Long Island.........................1O5
Table 17 - Analysis of Proposed Improvements and Separation Distances to Groundwater with Sea
Level Rise (Part 49O Regulations-%O50 Medium Scenario of16^)...............................................................ll3
Table 18-Natural Measures to Reduce the Risk of Flooding and Erosion.................................................116
Table 19-Existing Ecological Communities at Subject Property...................................................................119
Table 2O-Plant Species List for Subject Property.-------------------------------.123
Table 21-Bird Species Observed/Expected On-site..........................................................................................127
Table 22-Mammal Species Observed/Expected On-Site.................................................................................130
Table 23-Reptile and Amphibian Species Observed/Expected On-Site.....................................................13O
Table 24-Species of Special Concern---------------------------------------.131
Table 25-Proposed Changes in Ecological Community Coverages..............................................................134
Table 26-Tree Clearing Data (^6-incb Diameter)..............................................................................................13S
Table 27-D0attbuck/Lauco|Land Use Description(lO2O Comprehensive Plan)....................................147
Table 28-Bulk and Dimensional Requirements of the M-U Zoning District---------------150
Table 29-Consistency Analysis with Bulk&Dimensional Regulations for K4-U Zoning District........164
Table 3O-Consistency Analysis with the 2O2O Comprehensive Plan..........................................................169
Table 31 'Consistency Analysis with the Town o[Southold L\NBP...............................................................181
Table 32-Site Generated Trips.-------------------------------------------2O5
Table 33-Construction Generated Traffic for Phase 1-Excavation-------------------..214
Table 34-Construction Generated Traffic for Building Construction Phase Concurrent with Retaining
Walland Drainage...........................................................................................................................................................2lG
Table 3S-NYSD8C Thresholds for Significant Sound Pressure Level(S9L)Increase.............................253
Table 36-Summary of Acoustic Data Collected at the Subject Property(7am-7 pm).........................254
Table 37-Summary of Acoustic Data Collected along the Truck Route......................................................25S
Table 38'Existing Conditions at Each Receiving Location Evaluated..........................................................3G5
Table 39 - 8-HomLegSound Levels at All Receivers for Construction Activities and Additional Traffic
----------------------------------------------------------------2G7
Table 40 - Peak Hour Log Sound Levels at All Bamebmrs for Construction Aothihmo and Additional
Traffic...................................................................................................................................................................................258
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
Table 42-Estimated On-Road Vehicle Emission Rates.....................................................................................265
Table 43-Off-Road Mobile Construction Vehicles Hourly Emission Estimates by Equipment Type.268
Table 44-Estimated Carbon Stock Ratios.............................................................................................................271
Table 45-Carbon Dioxide Storage Lost Estimates.............................................................................................27%
Table 46-Summary o[Economic Impacts-SYC2O2O...................................................................................... 76
Table 47-Summary o[Local,State and Federal Taxes-SYC2O2O..............................................................277
Table 48-Annual Revenue Regional Comparison-SYC2O2O.......................................................................278
Table 49-Summary of Potential Economic Impacts-SYC2O24....................................................................2O1
Table SO'Summary of Local,State and Federal Taxes-SYC2024...............................................................281
Table S1-Annual Revenue Regional Comparison-SYC2O24........................................................................2O2
Table 62-Minimum Distances to Meet Vibration Criteria................................................................................29S
Table 63-Comparative Analysis of Proposed Plan and Alternatives............................................................314
Table 54-Comparative Analysis of Site Data for the Alternative 4 Plan and Proposed Action...........319
Table 6S-Changes bn Ecological ComnnuuityCovecag»sUndocAltmcnatmMao-------------.322
Table 66-Site-Generated Traffic for Project Alternative..................................................................................327
Table 67-Comparison of Site-Generated Traffic for Proposed Project vs.Alternative Plan................327
Table 58 - 8-Hour Sound Pressure Levels at All Kmcabecs for Construction Activities and Additional
Traffic with the Alternate Site Plan and Difference in Sound Pressure Level compared to the Proposed
Plan.......................................................................................................................................................................................330
Table 59-Peak Hour Sound Pressure Levels at All Receivers for Construction Activities and Additional
Traffic with the Alternate Site Plan and Difference in Sound Pressure Level compared to the Proposed
Plan.......................................................................................................................................................................................331
Table 60 - Sound Pressure Levels at All Receivers for the Build Condition with the Alternate Site Plan
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
EXECUTIVE SUMMARY
Introduction
This document is a Draft Environmental Impact Statement (DEIS) prepared in accordance with the State
Environmental Quality Review Act (SEQRA) and its implementing regulations at 6 NYCRR Part 617 for the
action contemplated herein and is based upon the Amended Final Scope issued by the Town of Southold
Planning Board(the"Planning Board"),as lead agency,on April 5,2021 and the Planning Board's Clarifications
and Comments in Response to Final Scope Amendment from the Applicant dated same. This DEIS evaluates
the potential adverse impacts associated with the proposed action,which consists of the development of two
boat storage buildings of 52,500 square feet(SF)and 49,000 SF,along with associated improvements including
water supply, sewage disposal, site grading and drainage, landscaping, and lighting, to support the existing
operations of the Strong's Yacht Center (SYC). The proposed buildings would be situated on a 32.96±-acre
parcel located on the west side of Mattituck Creek,which is zoned Marine 11(M-11)and Residential Low-Density
A (R-80), located at 5780 West Mill Road in the hamlet of Mattituck (the "subject property"). The subject
property is designated Suffolk County Tax Map(SCTM)No. 1000-106-6-10 and 13.4.
This DEIS evaluates the following issues,as set forth in the Amended Final Scope dated April 5,2021,issued by
the Planning Board:
• Soils and Topography
• Water Resources
• Flooding and Climate Change
• Ecological Resources
• Consistency with Community Plans and Studies
• Human Health
• Transportation
• Aesthetic Resources
• Community Character
• Open Space and Recreation
• Noise
• Air Quality
• Social and Economic Impacts
• Construction-Related Impacts
• Archaeological and Cultural Resources
This Executive Summary is designed solely to provide an overview of the proposed action,a brief summary of
the potential adverse impacts identified,and mitigation measures proposed as well as alternatives considered.
Review of the Executive Summary is not a substitute for the full evaluation of the proposed project performed
in Sections 1.0 through 4.0 of this DEIS and the alternatives analysis performed in Section 5.0 of this DEIS.
Description of the Proposed Project
The proposed project would be undertaken at the existing SYC property,which is currently comprised of boat
slips with associated ramps and fueling and developed with seven (7) buildings,including one residence and
six(6)buildings to support the operation of the marina,sales,maintenance,dockage,and storage of boats. The
existing marina includes approximately 45 boat slips and two liftwells with travelifts capable of hauling 50-ton
and 85-ton vessels. The marina currently accommodates boats and yachts ranging from 18-to-133± feet in
length. In the winter months, SYC provides both indoor and outdoor storage for 96 boats and 40 yachts. SYC
also hosts the Cornell Cooperative Extension (CCE) Floating Upwelling Systems (FLUPSY) in dockside areas
that are used for shellfish harvesting.
i
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
The proposed action includes the construction of two, one-story buildings of 52,500 SF and 49,000 SF for the
purpose of providing indoor winter storage of larger yachts, up to 86 feet in length. Each building would be
constructed with radiant heating for the purpose of climate-controlled (heated) space,vvbicb is essential for
maintaining electrical systems iu the types o[vessels tobmstored. Currently,the larger boats that utilize local
vvatocy in the peak season are being transported towarmer climates in the winter months due to a lack of
adequate storage in the Town of Southold and across Long Island.Based upon an average yacht size of 60 feet
in lmugt6, it is estimated that approximately 88 yachts could be stored within the proposed buildings; all of
which would arrive to the site via K8axdtuck Inlet and MaUbtuckCreek. Due tu the height and length ofthe
expected boats tobn stored,the existing buildings atSYC cannot bnused. Specifically,the height of the doors
on the existing buildings are approximately 24 feet.The current yachting market is producing both longer and
taller vessels with the height ofa typical yacht at35±feet. The proposed buildings would bm constructed with
door and ceiling heights capable of accommodating such vessels.
It is anticipated the boat owners would be existing customers who currently dock at SYC or Stroug'u Water
C|u6, or new yacht customers from the surrounding Southold community, as well as other owners on Long
Island, Westchester Cuunty, and in the States uf Connecticut and New jersoy In the fall season, the yachts
would be transported to SYC via Mattituck Inlet and be delivered by either SYC staff or be captained by the
yacht owners oca licensed boat captain.
The proposed two storage buildings would bo placed to the west ufthe existing Buildings 7aod O and are
depicted as proposed Building 9 and Building 1Oon the site plans. Io order to construct the proposed buildings
at an elevation equivalent to the existing marina buildings and adjacent boat lift,approximately 4.59 acres of
material would be excavated and removed to accommodate the proposed action(the"Construction Excavation
Area"). Upon clearing and material removal,the elevations would be reduced from an average of 50 feet above
mean sea level (&K43L)tn1O feet AK4SL The proposed first floor elevation(FFE) u[each proposed building is
10 feet AMSL.This removal of material to reduce the elevation is required in order to transport yachts to and
from the water via a boat lift or"travelift"as the size and weight of these boat types cannot be transported via
a traditional boat trailer and vehicle.
Approximately 134,921 cubic yards(CY)of material would be removed from the Construction Excavation Area,
which is proposed to occur iu two phases. Phase l includes approximately l23,O0O±CYof material and Phase
3is the remaining l2'000±CYofmaterial. Tn accommodate the excavation and removal o{material iuPhase
1,the proposed action includes the construction of a 1,454±-foot haul road from the Construction Excavation
Area io West Mill Road. The proposed haul road would vary in width from 16±feet to 30±feet and would be
partially situated on an existing unpaved road through the 8'80 portion of the subject property. At the
conclusion of construction, the kan| road is proposed to remain in place and would function as a gated
emergency access to SYC' if required. Phase 2 vvon|d be accommodated via the existing access driveway u0,
West Mill Road.
The proposed action also includes the construction of an Evergreen Macro Gravity Retaining Wall System
(hereinafter"Evergreen concrete retaining waU"). The proposed Evergreen concrete retaining wall would he
constructed along the west side of Buildings 9 and 10,the north side of Building 10,and southeast of Building
9,to stabilize the area excavated to accommodate the proposed action and correct existing stabilization issues
to the west of Buildings 7 and 8,that have been caused by unconsolidated dredge spoils deposited in the past
hy the D3ACU[ The proposed wall consists of precast concrete modular units that are fabricated off-site and
are shipped for assembly on-site. The noodn|or units are then placed in pre-determined locations to lock
together and create a wall with a safety factor of greater than 2.0,with 1.5 being the code minimum. Once in
place and backfilled,seeding and use by bird species promote growth in the trays that are built into the wall to
create a^gneen''wall over a period oftmo-to'throeyears.
Based upon a Tree Inventory and Tree Removal Plan completed by Dr.William Bowman of Land Use Ecological
Services, Inc. (LOOS),the subject property includes 2,408traes with 1,054troos (43.73 percent) on the R,80
zoned portion of the subject property and 1,354 trees (56.2 percent) on the M-11 zoned portion of the subject
property. In total, the proposed action would require the rononva\ of634 trees (26.3 percent) with 15 trees
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
(0.62 percent)from the R-80 zoned portion of the subject property and 619 trees (25.7 percent)from the M-II
zoned portion of the subject property. Approximately 73 percent(1,774 trees in total)of the total trees at the
subject property would be retained with 1,039 trees (43.1 percent) retained on the R-80 zoned portion of the
subject property and 735 trees (30.5 percent) retained on the M-II zoned portion of the subject property. As
part of the proposed action,there would be a replanting of 135 trees (95 Pitch Pines and 40 small trees,such
as Staghorn Sumac and Shadbush). Additionally, SYC would contribute 50 native trees (10-gallon container
typical 1-inch caliper,5-6 feet tall)for installation at high-priority sites with the Town of Southold,as identified
by the Town Tree Committee.
There are currently 23 stalls provided on-site, with the proposed action including the creation of 34 new
parking stalls on-site by striping gravel-surfaced areas that are currently used for parking but are not formally
marked. Upon implementation of the proposed action,the available parking would be increased from 23 stalls
to 57 stalls. The proposed action would not modify on-site circulation.
All sanitary waste is currently accommodated by two,individual on-site sewage disposal systems--one for the
existing residence and the second for the SYC operation. Upon implementation of the proposed action,the total
projected sanitary waste generation would increase by 18±gpd from 1,058±gpd to 1,076±gpd (based on the
SCDHS design flow factors of 0.06 gpd/sf for Non-Medical Office Space,0.04 gpd/SF for General Industrial Use,
and 10 gpd/boat slip for Marina,and 300 gpd for single-family residential use). As part of the proposed action,
the existing sanitary system that serves the residence would remain, and two (2) Innovative and Alternative
On-Site Wastewater Treatment System (I/A OWTS) would be installed (one of which would serve as a
replacement system for the current individual on-site sanitary system that serves the office,marina and other
SYC buildings).
The proposed action also includes an extension of the Suffolk County Water Authority (SCWA) public water
main from Naugles Drive for on-site connection and installation of a new hydrant at the site entrance on West
Mill Road. As part of the water supply improvements,two of the existing four on-site wells would be converted
for irrigation supply only and the remaining two would remain inactive.
The overall land area that would be affected by the proposed action is approximately 6.51± acres, which
includes the upland area to be excavated and/or cleared as well as those land areas on the existing SYC facility
where infrastructure improvements would be undertaken (hereinafter, the "Project Area"). As part of the
proposed action,a stormwater management system would be installed and would consist of on-site leaching
pools and French drains designed to accommodate and recharge stormwater runoff from the Project Area as
well as off-site contributing areas. The proposed stormwater management plan is designed to accommodate a
two-inch rain event,in accordance with Town of Southold regulations(Chapter 236 Stormwater Management).
Potential Impacts
Soils and Topography
According to the US Department of Agriculture (USDA) Soil Survey of Suffolk County, New York and the USDA
Natural Resources Conservation Service Web Soil Survey for Suffolk County,New York,the subject property is
comprised of seven soil types: Carver and Plymouth sands, 15 to 35 percent slopes (CpE), Fill land dredged
material(Fd),Plymouth loamy sand,3 to 8 percent slopes (PIB),Plymouth loam sandy,8 to 15 percent slopes
(PIC), Riverhead sandy loam, 0 to 3 percent slopes (RdA), Riverhead sandy loam, 3 to 8 percent slopes (RdB),
Tidal Marsh (Tm) and Water. However, soils within the Project Area are limited to soils mapped as CpE, PIB,
PIC, RdA, RdB, and Tm. Based on the Soil Survey, there are select soils within the Project Area that have
moderate-to-severe engineering limitations for the development of streets or parking lots due to slopes (PIB
and RdB soils are noted as moderate and PIC soils are noted as severe), moderate to severe limitations for
sanitary disposal systems due to slopes and soils that have rapid permeability(PIC are noted as moderate and
CpE soils are noted as severe),and severe limitations for landscaping due to slopes (CpE)and a sandy surface
layer(PIC). All of the noted limitations associated with slope and sandy surface layer would be overcome with
iii
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
the proposed excavation and regrading o[the Project Area toa flat elevation. Regarding the potential for rapid
permeability,the proposed new sanitary system would be situated in the PIC soils. However,soil borings have
been pocfocozmd by McDonald Gmosciuocu for both sanitary systems and there were no limitations identified.
Additionally,as part ofaGmotmcboicalEngineering Assessment performed by PWGC,the drainage ability of on-
site soils has been evaluated and the drainage characteristics have been determined to be good,with a limited
area of soil near the proposed Building 9 having a high concentration uf fines. Soil mixing would 6eperformed.
It is noted that there are no sanitary disposal systems to be located in this area. Overall, based on the above,
d6mcn are no engineering limitations that would impact the proposed development or result in significant
adverse impacts associated with the development of the Project Area.
The Geotechnical Engineering Assessment and associated Memo Report included soil characterization in the
areas of proposed excavation and the permanent retaining wall,and also evaluated the proposed cut material
with an approximate breakdown of the volumes of the various soil deposits, structural design, drainage, site
preparation, slope stability and vibrations during construction. Based on the Geotecboica| Engineering
Assessment,the soils have been determined to be structurally suitable for the proposed buildings and retaining
wall, with no dope stability issues. There are also oo vibration impacts expected from soil excavation or
construction activities.
Of the proposed 135.800± CY of cut, approximately 63 percent of the material has been identified as quality
sand,with the remaining 37 percent of the material classified as poor to fair. Upon excavation and loading nn
to trucks, the material inits raw form would bo transported toa facility for stockpiling and processing, and
eventually sold as a finished product tothe ultimate end user. Such uses could be beach replenishment,
aggregate for roadway construction,pre-cast concrete products,etc. Material may also be transported directly
toa local site for ce-use. Given that this project is still in the environmental review process, and the ultimate
re-use facility or location is driven by market conditions and the local need, it is not possible to identify the
specific re-use location ur alternative locations.
An Erosion and Sediment Control Plan has been developed for the proposed development. The specific
nomdzods and materials employed in the installation and nuaiutmuuucm of erosion control measures would
comply with the New York State Standard and Specifications for Erosion and Sediment Control, IUoe Book
(Noveoober28l6).
Based on the Grading and Drainage Plan,the proposed grading program would reduce average grade from 50
feet AMSL to 10 feet AMSL within the Phase 1 Construction Excavation Area,and from 47 feet AMSL to 10 feet
AK4SL in the Phase 3 Construction Excavation Area. As provided bythe project engineer,the existing slopes
within the Project Area would be modified to reduce steep sloped areas(i.e.,those greater than 15 percent)by
50 percent. To stabilize the slopes within the Project Area and to correct existing slope instability due to
unconsolidated onateda|s, an evergreen concrete retaining vvaU of approximately 875 feet in length and of
varying height is proposed to the north and west of the proposed boat storage buildings. Portions of the
retaining vvaU would be vegetated for a visually appealing wall that serves to blend with the landscape.
Additionally,upland of the retaining wall,newly landscaped areas and erosion control blankets would stabilize
soils. Overall,based on the above,no significant adverse impacts associated with modifications in topography
would beexpected.
Water Rmomunwmo
Groundwater
Based on published data by the US Geological Survey,as well as soil borings conducted by McDonald Geoscience
in September 2018 and by PWGC in June 202 1,groundwater elevation at the subject property is approximately
3 femtAK8SL. As the topography on the site ranges from approximately 6 feet to SO fmmt&MSL. the depth to
groundwater ranges from approximately 3 feet below grade surface(bgs)to 47 feet bgs.The subject property
is located in Hydrogeologic Zone IV,which encompasses the North Fork, Shelter Island,and the northern and
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
eastern portion o[the South Fork. Zone IV is characterized by shallow flow systems that discharge to streams
and marine waters.
Aounoocical 3-D groundwater modeling assessment and report has been prepared to address the potential
impacts from the soil excavation on-site that the Acomudmd Final Scope identified as "potentially capable of
affecting the hydrology and zones of influence for nearby private wells,and the quantity of water available after
excavation is c000plmtmd." The groundwater model was employed rather than taking monthly water level
observations over the course of a year because the model can reliably predict groundwater levels and aquifer
responses under numerous different conditions and scenarios.Also,rather than one year of data,multiple years
of groundwater level data were used to construct and calibrate the model (in this particular case some of the
local monitoring wells used to construct the model had monthly data going back as far as 1975),which allows
for more long-term averages tobeused. This also allows for the identification uf anomaly years,such aswhen
drier urwetter conditions may prevail. Longer term groundwater trends (rising or falling water levels and
potential causes)can be observed as well when looking back over many years as opposed to a single year.
Based on the 3-D groundwater modeling assessment,as the proposed site excavation would take place entirely
above the water table and the proposed site modifications would only slightly add more water tothe local
aquifer system due to the increased recharge post construction,the proposed site excavation would not have
any impact hydraulically on the nearby surrounding domestic supply wellhead zones of influence. Additionally,
the proposed connection to the SCVVA water main and vvit6dravvoQ only irrigation supply on-site, vvuu|d
reduce the water to be vvid6dravvo from the aquifer post-construction. Less water withdrawal has uouihpie
benefits with regards to the site having less of an influence on neighboring wells, and on saltwater intrusion
audupcouiug.
Regarding the impact on quantity and quality,the 3-D groundwater model included particle tracking from the
subject property where particles were released from beneath the proposed site excavation and tracked
forward until they reached a termination point. Groundwater recharging beneath the Construction Excavation
Area was shown to flow towards Mattituck Creek and was not intercepted by any of the domestic supply wells
that are in proximity to the subject property. As such, the nonde| demonstrates that the neighboring wells
would not be impacted with respect to groundwater quality as a result of the proposed site excavation.
Shallow groundwater beneath the subject property flows eastward towards K4aUbtnck Creek and the United
States Geological Survey (USGS) data supports this flow direction as does the 3'D groundwater model flow
simulations. Under the post excavated conditions,a slight increase in the water table of 0.01 feet is predicted
immediately beneath the proposed Construction Excavation Area due to the increase in stormwater recharge.
The Groundwater K4odehuQ Report evaluated whether the proposed excavation would alter the saltwater
interface iva way that may cause saltwater intrusion iutotheaqniferoruearbyw/eUheadzouesofinOoence.
The difference between the excavated and unexcavated site conditions being that the surface elevations at the
location of the proposed excavation are decreased from between 25 to 50 feet AMSL to 5 feet AMSL(assumed
foundations/footings) and the recharge occurring within the limits of the proposed excavation is increased
from 0.0085 feet/day to 0.0101 feet/day. Slightly increasing the recharge across the area of the proposed site
excavation increases the amount of freshwater being received by the aquifer and in turn would have the effect
o[causing the saltwater interface to migrate seaward and downward. Under the excavated site conditions,the
water table is expected to rise 0.01±feet due to the increased recharge,resulting in a saltwater interface that
is approximately 0.40 feet deeper and a freshwater lens that is 0.41 feet thicker. &s such,saltwater intrusion
is not expected to occur as a result of the proposed site excavation,but just the opposite is predicted. With less
water withdrawal from the aquifer and an increase in recharge,there is a beneficial impact with regards to the
saltwater interface position beneath the site.
As part of the proposed action,an extension of the public water main for connection to the SCWA is proposed.
Consultations were undertaken with SCWA and in correspondence dated October 20, 2017, public water has
been confirmed to be available to the subject property through an extension of the existing water main located
765±feet west of the subject property on Naugles Drive. Accordingly,as part of the proposed action,the water
v
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
main extension would be installed from Naugles Drive through West Mill Road to the main entrance to SYC.
The water main would be installed along the western portion of the marina and service the existing buildings,
single-family residence,and the two proposed boat storage buildings. Au confirmed bySCVY8'the extension o[
the public vvatnc main would also allow for existing landowners to connect to the public supply system, by
request to the SCWA.Upon implementation of the proposed action,the two existing on-site supply wells near
Buildings 1 and 7 would be converted for use for non-potable water supply only(i.e.,irrigation)and the on-site
supply wells near Buildings 2 and 3 would beabandoned.A fire hydrant io proposed north of the entrance to
the marina,oo the west side of West Mill Road.
Potable water usage for post-development conditions would increase by 18 gpd from 1,058±gpdto1.076±gpd
(based on Suffolk County Department of Health Services [8CD8S] design Oovv factors [3CD88 Standards For
Approval Of Plans And Construction For Sewage Disposal Systems For Other Than Single-Family Residences]
of 0.00 gpd/SF for boat storage and 0.06 gpd/SF for non-storage[bathrooms]). This increase is associated with
employees and not the building area as such space would be utilized for storage. The total volume of 1,076±
gpd would be served entirely from the public water supply,as noted above. Regarding water usage associated
with other activities associated with the boat storage use, there vvuuid be an increase in water usage for the
power washing of boat bottoms in the fall season(approximately 50 gallons per boat)and boat washing in the
spring prior tu waxing(approximately 17U gallons per buat). Bottom painting and detailing/waxing does not
require any additional water usage. This water supply would also be provided from the new SCVVAvvater
cuunocbuo.
Irrigation supply is also proposed with the installation of automatic underground sprinkler systems with rain
sensors to serve new planting areas. In total,approximately 1.22 acres of the 1.91±acres of new landscaping
would be irrigated via the existing on-site wells to be retained near Buildings 1 and 7. Based upon one inch of
water per week for the irrigation season of 26 weeks (i.e.,mid-April to mid-October),approximately 437 gpd
for the irrigation season ocZ18±gpd(averaged annually)isprojected.
Regarding sanitarywaste generation and disposal,the existing flow associated with SYC is approximately 1,058
gpd. Based on SCDHS design flow factors sanitary waste generation for post-development conditions would
increase 6y18±Qpd from 1'05O±gpJtn1,076±gpd(based on the SCDHS design flow factors o[O.06gpJ/s[for
Non-Medical Office Space, 0.O4 #pJ/SF for General Industrial Use, O.O6gpd/SF for non-storage (bathrooms),
10 gpd/boat slip for Marina,and 300 gpd for single-family residential use). As part of the proposed action,the
existing sanitary system that serves Building l vvnu|d remain, and two (2)' 600'AaUnn' |//\ OW78 would 6o
installed(one of which would serve as a replacement system for the current individual on-site sanitary system
that serves the office,marina and other 3YCbui|dings).
}\s the subject property is located in Groundwater Management Zone IV,Article 6nf the Suffolk County Sanitary
Code(SCSC)restricts the maximum permitted sanitary discharge for the use of on-site sanitary systems to 600
gpd per acre or,approximately 9,498 gpd (based on the developable land area of 15.83 acres,as explained in
Sections 1.2.3 and Z.Z.1o[this DE|3). Accordingly,the proposed action complies with the maximum permitted
density set forth in Article 6 of the SCSC subject to a waiver for usage of employee count and not the storage
building area.The proposed application is subject to a SCDHS Board of Review variance to vary the design flow
factor for the storage buildings to consider employee usage rather than building area. An application was
initially filed with the SCDHS on July 18,2018,and consultations with the SCDHS are ongoing.
Regarding Article 7 of the SCSC,the subject property is not located in a regulated deep recharge area and is not
located within an area that in 1,500 feet opArudien1 or 500 feet dovvngrudient of public supply well that
screens in Upper Glacial aquifer, ur other water supply sensitive area. As such, the proposed action is not
subject to Article 7 restrictions.Regarding Article 12,SYC maintains a current Article 12 Permit(active through
August 31, 2022) for existing tanks and chemicals stored and used on-site.There are no changes proposed to
the existing tanks or volume of materials storedon'siLe. As such,there is no additional Article 12 permitting
required for the proposed action. The proposed liquid propane gas(LPG)tanks are subject to compliance with
the 2020 NYS Fire Code and the National Fire Protection Association 58-Liquifled Petroleum Gas Code,which
vi
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
sets forth requirements for installation, setbacks,and protection from vehicle impacts. Accordingly,through
Building Department review,it is the Southold Fire Marshal that would review and approve such LPG tanks.
SYC is a New York State Department of Environmental Conservation (NYSDEC)-registered Pesticide Business
as it provides commercial aquatic antifouling paint application services. SYC was issued the registration by
NYSDEC on February 19,2020 and is active through December 31,2022. The SYC staff would continue to renew
the Aquatic Antifouling Applicator Certification,asrequired.
Stormwater Runoff and Drainage
The proposed action would increase the total impervious surface area from 2.62± acres to4.9O± acres and
would modify land coverages from woodland to landscape and pervious pavers. Accordingly,there would bm
a resultant increase in the volume of stormwater runoff generated on the subject property. As indicated on the
Grading and Drainage Plan, the proposed action includes drainage controls for approximately 7.77 acres
(338'387 SF) of land area, vvbicb includes the Project Area and off-site contributing land area dun to site
topography. The proposed drainage controls include leaching pools of varying depths and French drains which
includes the use of pervious gravel. The proposed ytocmnvvatmc nnaoagnnnnot system is designed to
accommodate a two-inch rain event in accordance with §236-7.A of the Town Code and includes four
tributaries. Overall, as the proposed drainage plan would improve on-site stornowmtor management and
provide drainage for areas that are currently not served,there would be a resultant benefit from the proposed
action. A consistency analysis with Chapter 236 of Town Code(Stormwater Management)is included in Section
2.2 of this DEl3 and demonstrates the proposed action to be in compliance, and/or consistent vvidb, the
performance standards for a stormwater management control plan,as set forth in§236-18.
Prior to construction, and iu accordance with the NY State Pollution Discharge 8iinuivahou System (SPDES)
General Permit for Stocouvvator Discharge during Construction Activities regulations, a Stocmw/ater Pollution
Prevention Plan (SVVPPP) vvuuid be prepared to ensure compliance with erosion and sediment control
practices set forth in the Now York Standards and Specifications for Erosion and Sediment Control (NYSD8C'
2816)' as well as the water quality and quantity requirements sot forth in the Now York State SCunnwuter
Management Design Manual(0YSDEC'2015).
Wetlands and Surface Waters
Ou January 31. 2020. NYSD8C issued Non-jurisdictional Determination for all activities landward of the
existing bulkhead and 10-foot contour and a Tidal Wetlands Permit(Permit No. 1-4738-01843/00028) for all
activities within the regulated adjacent area (Install two dry wolls1leocbing pools and concrete retaining wall.
Add French drain system tn west side o/existing one-story building.All roadway and parking area material will
bogrove/only.All work must be done in accordance with the plans prepared by Howard W. Young LLS last revised
1/2/2020 and stamped by/YY3DECapproved 1/32/2020). For those activities regulated under Chapter 273
(Town Trustees Permit) of the Town Code,which is limited to the striping of parking and installation of 180±
feet of French drains adjacent to Building 8,all work would be done so in accordance with Town regulations.
A "Boat (Vessel) Study" was prepared to evaluate the projected changes in boat traffic vvidbiu the K8atdtuck
Inlet and Creek,the existing and potential surface water quality impacts associated with the projected changes
in boat traffic,and the monitoring and enforcement protocols that are in place. Based uuSYC data and publicly
available data. approximately 2.000 boats, yachts, commercial fishing vessels, goveronoeot/pu6Ucvessels.
peooua| watercraMs' and kayaks and Stand-Up Padd|e6oards (8OPs) are docked or use MatbtuckCreek
annually. It is estimated that approximately 547boats are active in Mathtucb Harbor on a peak season day.
The proposed action includes approximately OO yachts to6ostored. The yachts will arrive tu the facility atthe
close of boating season (i.e., September-December), hauled from the water via the OS-too tzaveUft and
transported tothe heated storage buildings, and the same boats will be removed from storage, returned to
Mattituck Creek via the travelift,and exit Mattituck Inlet in the beginning of the boating season(i.e.,April-June).
Given a 12-weekbuoofrarno for entry to storage in the Fall and the same dnoob'anoo to ronouvo boats from
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
storage in the Spring, this equates to an average of approximately seven (7) boats per week or between one
two boats per day. SYC would maintain a schedule for all boats entering or leaving the storage facility.
Upon innpinozmotahoo of the proposed action, SYC would still offer dockage/boat slips, fuel station, sewage
pump-out services, marine travelift system, dry dock and interior storage of boats (but with heated indoor
storage for lacAnc yachts post-development), boat noaiutouaucm' repair, and detail services, and boat
painting/antifouling services to all yachts utilizing the facilities. Furthermore,au increase iu boat traffic isnot
expected to result in significant adverse impacts to surface waters as all boats are to be in operable condition,
with no discharges of gray or black vvatnc from holding tanks, and no fuel leaks or heavy exhaust; and also
subject to monitoring and enforcement of the USCG and Town of Southold Bay Constable.
The proposed action does not include any modification to Mattituck Harbor that would alter tidal flow and does
not introduce a voyyol length that is currently not using the Harbor tuday. Therefore, the use o[Mattituck
Harbor for boat travel to SYC for the purpose of winter storage does not require a water/tidal Oovv
modeling/study. Based on National Oceanic and Atmospheric Administration (N0AA) data, as well ayau
independent y4atbtuck Inlet Survey with soundings at low tide that was performed by 8&L Contracting LLC,
the tidal range for K4atdtucb Creek is approximately five feet. &t low tide, depths average between 9-to-10±
feet.At high tide,the average depths range from approximately seven(7)to 14 feet outside of the channel and
14-to-15±feet within the channel.The SYC marina accommodates boats and yachts 18-to-133±feet in length,
vvbicb can all safely navigate K4aUdtuck Creek. As indicated oarUoc the average yacht size to be stored under
the proposed action would be60±feet. As such,the projected 88 vessels tubo stored,atao average length uf
60 feet and a maximum of 86 feet in length,can be accommodated without impacts to the Inlet or Creek.
The new vessels that are expected to utilize SYC for storage would be expected to comply with U.S.
Environmental Protection Agency(U.S. EPA)federal regulations for the engine types ooboard. Also,both the
US Coast Guard and the Town of Southold Bay Constable are responsible for monitoring and enforcement of
activities within K4aUbtucb Harbor. The addition ofOO yachts in K4aUbtucb Creek would be inopmrceiva6|m to
existing users as the storage and launch of the yachts would take place over a lZ-wnob period. The existing
measures in place to police Mattituck Creek with regards to water quality and boat traffic safety are sufficient
to accommodate the proposed action. Therefore, the proposed action would not require the development of
additional policing methods to address the threat of water quality and boat traffic safety would not be needed.
Regarding the impact on Mattituck Harbor Water Quality,surface water quality data from 2000 through 2020
within K4aKi1nck Creek was obtained from the SCDRS Bureau of Marine Resources. Bay Station 055330
(Latitude 41.009' Longitude -73.548583)' the closest marine monitoring station to SYC' is located lGS± feet
northeast of the subject property. &x SYC purchased the subject property in the fall of2016,the data for au
eight-year time period (2012-2020) was reviewed to identify conditions prior to and after SYC acquired the
property. Based on the data,the water quality observed at Bay Station 053320 since SYC purchased the subject
property in 2016 is consistent with the overall water quality of Long Island Sound. The seasonal fluctuations
in Nitrogen, Dissolved Oxygen, and Ch|ocophy|'aare comparable to those iu Long Island Sound and overall
water quality was identified as fair to good based on conditions set forth in the Long Island Sound Study(LISS).
Overall,the water quality of Mattituck Harbor between 2012 and 2020 is comparable to that of eastern Long
Island Sound.Accordingly,SYC has not contributed to water quality degradation in Mattituck Harbor.
Review of the Suffolk County Subwatershed Plan was also performed to address the impact of nitrogen loading
ou the overall health ofK4atb1uckCreek. Lower levels of Dissolved Oxygen and Harmful Algal Blooms (RA8)
events indicate the water quality of Mattituck Creek trends towards poor. However,these water quality issues
are not attributed to the maritime industry but tostoronvvater runoff and warming waters. As the proposed
action includes a drainage plan that complies with the ?ovvn's otornnvvater management regulations, no
significant adverse impacts associated with stormwater runoff would be expected.
Another boy indicator of water quality is the state of the obcUfiob harvests. K4atdtucb Creek is seasonally
uncertified for shellfishing from May 1 to December 31 by the NYSDEC.These seasonal closures have occurred
since the 1980a. Based on historic information reviewed, the primary reasons for these closures are the
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
presence of saxitoxins and HABs such as (Aureococcus anophagefferens), two types of red tides (Alexandrium
/kouyonse and Dioopbysisocumhnota). and rust tide (Coch6ndiniumpolykr0kok/o). The H&B events are closely
related to increasing water temperatures and occur almost annually in Long Island's waters. To assist in
improving water quality on Mattituck Creek,SYC was chosen by CCE to serve as a FLUPSY host.
Furthermore,based on the data and sources reviewed,the boating industry was not identified as a contributor
to the degradation of surface water quality for Matdtucb Ccmmb or Long Island Sound. The proposed action
would introduce 88 yachts to Mattituck Creek over a 12-week period(seven[7]per week or one-to-two yachts
per day when averaged over the 12-week period for receiving boats or hauling back into Mattituck Creek). As
all yachts are required to meet both state and Federal discharge and engine exhaust standards and the No
Discharge %oomy would prohibit yachts from dumping ynvvagn into K4atbtuck Creek, there would be no
associated impacts to the waters ofMatdtucb Harbor. Additionally, the proposed action includes several
measures to protect surface water quality,including a SWPPP,upgrades to the existing sanitary systems to I/A
0VVT3. and post-development drainage controls to accommodate and recharge sturmw/ateruo-uite. As the
proposed action would introduce an imperceptible number of new boats and yachts to Mattituck Creek and
Long Island Sound and SYC would implement measures to protect surface water quality on-site,the proposed
action would not introduce new risks tu surface water quality.
Flooding and Climate Change
Based on the Federal 8000rgoucy Management Agency (F8K4A) Map Panel ID: 36103CO1438' the eastern
portion of the subject property that is currently developed with the operating marina Buildings 2,5 through 8
is located within the Special Flood Hazard Area(SFHA)Zone AE,which is the 100-year flood zone,with a Base
Flood Elevation(8F8) of8feet. Areas iu Zone AE are subject tn inundation by the one percent annual chance
(or 1UO year) flood. The northeast portion of the subject property that is developed with Building 3 and area
to the south of Building 8 are situated within 2nuo X: 0.2 percent annual chance or 500-year Onnd zone. The
existing residential structure (Building 1) and all areas landward of Elevation 8.0 are within Zone X: Area of
Minimal Flood Hazard(i.o,area is outside aSF8A).
The Project Area inclusive of the proposed retaining wall,storage buildings,new and replacement I/A sanitary
systems, drainage infrastructure,and new pavement areas would occur entirely outside of a SFHA(i.e., FEMA
Flood Zone X]. However,the FEMA Flood Zone X is based upon the current elevations of the subject property.
The flood zone boundary between Zone AE: Elevation 8 feet 8FE and Zone X: 5OO-yeac flood runs north-south
at Elevation 8 feet AK4SL Upon implementation of the proposed action, the Project Area vvoo|d reduce to
Elevation lO feet AK43L with the proposed cut and removal ofmaterial. The Zone X designation is also based
upon the current elevations of the Project Area (i.e., 7.10± feet to 46.1± feet AMSL). Upon implementation of
the proposed action,the Project Area elevation would decrease to Elevation 9 feet AMSL.
It is noted that the adjacent mapped floodplain is Zone AE with BFE of 8 feet and building within this area would
require the lowest habitable building level(i.e.,First Floor Elevation)to be placed at BFE plus 2 feet or Elevation
1O feet. Accordingly,Buildings 9 and 1U would be constructed with auFFEat Elevation 10feet. Other proposed
improvements,including new pavement, drainage infrastructure,and I/A sanitary systems would be situated
at approximately Elevation lO feet AK4SL Although the proposed action is outside of the mapped Ooodp|aiu'
the proposed storage buildings would be compliant with NYS requirements for new construction in the Zone
AE floodp|ain.
Pursuant to 6 NYCRR Part 490,the potential sea level rise of 16 inches (or 1.33±feet)by 2050 is considered a
reasonable analysis based on the definition of the projections as"amount of sea-level rise that is about as likely
as not...tn he exceeded hythe specified time interval." Under this scenario, Mean High Water (K4RW) at the
subject property would increase from 4.0±feet AMSL to 5.3±feet AMSL,and thus,would not affect the existing
buildings or infrastructure. Based upon available mapping provided by the New York State Department of State
(NYSDOS),sea level rise of 12 and 24 inches would not be expected to impact the property beyond the bulkhead
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
and K4HW. Based on the proposed elevations of 10 fomt&K4SL and noioinouno 9 feet AK8SL for the proposed
buildings and infrastructure,respectively,sea level rise of 16 inches would not impact the Project Area.
Utilizing the New York State Energy 8msmaccb and Development Authority (NYS8RDA) Future Coastal
ploodplaiu Mapper,sea level rise with storm inundation were evaluated ot the subject property,under the post-
development coodidoo.Ata1O-ymarcmcucrmucoiutocvalvvid618iucbmsofsmalnvnlcism (2OSOs). iouudahoo
could occur at Buildings 2,7 and 8,and the eastern portions of Buildings 3 through 6 could be affected.Building
1 would bnunaffected.At a 100-year recurrence interval with 18 inches of sea level rise (2050s), inundation
across the property could occur but Building 1 would be unaffected. With the proposed FFE of 10 feet for each
building and the top elevation of all infrastructure at a minimum 9 feet AMSL,this scenario is not expected to
impact the proposed buildings urinfrastructure.
With 16 inch or 1.33±-footciyo in sea level,the groundwater model predicts that groundwater beneath the
site would rise to an elevation of3.US feetAK43L (NAVD OO), or a rise of 1.31 feet (model predicted the post
excavated site groundwater elevation to be 1.74 feet AMSL [NAVD 88])without any sea level rise. The Boring
Lugs indicate depth to groundwater at 64± feet bgs (or 14± feet AK0SL) at Boring B1 (the iucabuu of the
replacement system identified as Sanitary System No. 2)and at7.6±feet bQs(or 1.2±feet AK8SL)at Boring O2
(to location of the new system identified as Sanitary System No. 1). As sbovvo on the Utility Plan, the top
elevation of both Sanitary Systems Nos.1 and 2 would be 9.4± feet AMSL and the base of the leaching galleys
would be 4.4 feet AMSL.Based on existing conditions,the distance between the bottom of the leaching pool and
groundwater for Sanitary System No. 1 is appcnxinoate|y3.2 feet and Sanitary System No. 2 is approximately
3.0 feet. When applying a projected 1.31-foot rise in groundwater elevation in the 2050s' this separation
distance would decrease to 1.7±feet and 1.9±feet for System Nos. 1 and 2,respectively.
The recommended separation distance to groundwater for sanitary leaching fields is three feet. As such,should
sea level rise occur as ycnjoctod' the system vvnu|d be non-compliant with current design requirements.
However, in the 2050 condition, modifications to the leaching field could be implemented 6y elevating and
installing a pump station. However,the manufacturer lifespan of the I/A OWTS is 30 years, and thus,by the
2050s,new systems could be expected.Should the projections of sea level rise be realized,the new systems to
be installed would be required to comply with the regulations at that time.
Regarding drainage infrastructure, the recommended separation distance 10 groundwater is two feet. The
proposed stornovva1orleaching fields would be installed with top elevations ranging from 9-to-9.5±feet AMSL
and varying pool depths.Based on existing conditions,the groundwater separation would range from 3.0±feet
1n4.U+feet. A 1.31-foot rise in groundwater elevation would decrease the separation distance to 1.7±feet to
2.7±[ee1. Should this scenario occur,the drainage infrastructure could be replaced and/or supplemented with
shallow drainage structures to accommodate stormwmterrunoff.
Ecological Resources
Ecological surveys were conducted at the 3296'acre subject property by Dr. VVUhano 8nvvrnan nfLOES on
various dates in 2020 and 2031. Specifically, field surveys and work were performed by Dr. 8ovvn/au on
September l8'2O30,October 3l.30%O,January l7.3O3l'May l3'3O3l'July l9'28.2U3l'and August 34.203l.
During the field inspection,a total of 122 vascular plant species were observed,including 53 woody plants,64
herbaceous plants,audd6reeterns.AdditionaUy, 9lhirds' 2Onuanonua|sandUhreeherpti|esvvereohservedor
are expected to occur on the site. Dr. 8nvvman's field work also included a tree survey with species
identification. LUES also prepared the proposed tree removal plan with species identification and analysis,in
coordination with Young&'Young Engineering,as the project engineer.
The existing ecological coznoonuides present at the site include Coastal Oak-Beech Forests, Successional
Southern Hardwood forests, Snccesxioua| uhrnh|ouds, a small tidal wetland area associated with K4atbUuck
Creek,and anthropogenic cover types such as mowed lawn with trees and landscaping,buildings,and paved
and pervious road and parking surfaces.
x
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
The proposed action has a construction footprint o[ 6.51± acres resulting in the physical disturbance and
permanent loss of 4.32± acres of high-quality Coastal Oak-Beech forest, 1.19±acres of southern successional
hardwood forest, and 0.54± acre of successional sbrublaud. The loss of successional sbrublnod habitat is
associated with the proposed 16-foot-wide haul road traversing the site from the proposed excavation areas to
Mill Road. Upon inoplmoomutabou of the proposed action, the acreage of buildings, inopmndouo sucbacmo, and
gravel driveways and parking areas would increase from 3.70±acres to 8.37±acres and would then comprise
approximately 23.4 percent of the site.
The Bulk Schedule requirements for properties in the M-|| Zoning District require a noioinouno of20 percent
(3.29 acres) of the 16.46±acres inthe M-U zone tobm maintained as landscaping or natural areas under§28U
(Zoning)of the Town Zoning Code. Under the proposed action,6.46±acres within the M-11 zone(approximately
51.4 percent) would be maintained as natural vegetation comprised of Coastal Oak-Beech forest and
successional forest and 1.67 acres of plantings and landscaping (including retaining wall plantings). As such,
the proposed preservation of approximately 8.13 acres of vegetation (i.e., 646± acres of existing natural
vegetation and 1.67± acres of planted vegetation) within the K4'11 Zoning District is consistent with and
substantially exceeds the 20 percent minimum requirement pursuant to §280 (Zoning) of the Town Zoning
Code.
Approximately 13.77 acres of southern successional hardwood forest and successional shrublands would be
retained;these areas are located on the western R-80 zoned portion of the property adjacent to West Mill Road.
Approximately 8.28 acres of Coastal Oak-Beech forest would be maintained on the site,largely in the northern
portion of the M-11 zoned property interspersed between existing residential structures,with some forest along
the southern property boundary in the D-OU zoned portion. The approximate 0.63-acre of tidal wetlands
located along the shoreline of Mattituck Creek would be preserved under the proposed action.
Based on the preliminary site plan, the proposed development would result in the clearing/removal of
approximately 634 trees. Of the 634 trees' 15 trees vvou|J be cenouvad from the R,OO zoned pnrdnu of the
subject property and 619 trees vvuu|d be removed from the K4-11 zoned portion of the subject property.
Approximately 70 percent of the trees proposed for removal consist of various oak(Quercus sp.)and American
beech trees with an average size of 12.8-inches diameter at breast height(DBH). The remaining 3O percent are
comprised of Norway Maple(Acerplatanoides),Red Maple(Acer rubrum),Tree of Heaven(Ailanthus altissimo),
Skad6nsh (Amo/onch/erconudnnsid'Gray Birch (BoLu/opopuU/o&z), Pignut Hickory(Corymg/o6ro), Flowering
Dogwood (Comas florkk)' Autumn Olive (8leugnusumbc8utu). American Beech (Fbguzgroodifobo). Eastern
Red Cedar Uunhocruxnhgin6ono).Apple (Ma/uxsp)'Mimosa(A/6izz/o/ulibrisshn)'White K0olherry(&oruzo@o)'
Pitch Pine (Pinusrigkdo)' Japanese Black Pine [PinusC6unbeqgh]' Cottonwood (Popu/usdc/to6jes). 8igt000
Aspen (Popu/uxgroodidenAzta) Bird [8cr(y (Prunus ovium)' Black Cherry (Prunus xrrntioo]. Black Locust
(Ro6J//o pseuduococ/o)' and Sassafras (3oszcfrox o/bb{um). Overall, upon implementation of the proposed
acbuu' 73.0± percent of all trees on the overall subject property(i.e., 1,740 of the 2'408 total trees)vvoo|d he
retained. Approximately 54.2 percent of the trees in the M-11 Zoning District(i.e.,735 of the 1,354 trees on the
K4-||zoned portion)would beretained.
The Coastal Oak-Beech forests on the subject property consist o(l,647± American beech, oak, hickory, red
maple,and sassafras trees. Upon implementation of the proposed action,approximately 66.8 percent of these
native trees would beretained. In addition,under the proposed action,approximately 66 percent of the trees
greater than lZ'iuchesinD8H would bepreserved. Additionally,approximately 86 Pitch Pine trees,as well os
shrubs and Arouodcover, would be established in 27,333 3P planting area along the new forest edge
(predominantly pitch pine)with an additional 40 small trees,including Staghorn Sumac and Shadbush,on the
proposed retaining wall.
Some of the 8.28±acres of Coastal Oak-Beech forest and 3.48±acres of successional southern hardwoods to be
maintained under the proposed action would be adversely impacted by the creation of new forest edges. The
edge effect impacts are found to occur up to 195-feet from the north-and east-facing forest edges. Due Cothe
historical disturbances associated with clearing for agricultural uses, commercial marine construction, and
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
construction of two residential structures, much of the existing Coastal Oak-Beech forests are currently (or
were previously) subjected to edge effects from adjacent clearing or development. Approximately 3.52 acres
of the existing Coastal Oak-Beech forests are currently located more than 195-feet from an existing forest edge
associated with the commercial marina or residential structures. The proposed project would result in a new
forest edge and, accordingly, result in changes in microclimate that will penetrate up to 195-feet into the
existing Coastal Oak-Beech forests. Under post-project conditions, all of the site's 8.28± acres of Coastal
Oak-Beech forests would be less than 195-feet from existing or new forest edges.
As mitigation, the magnitude of the potential adverse impacts of new edge effects would be reduced by the
planting of 27,333 SF of native trees and shrubs along the new forest edge. This planted area is approximately
20-30 feet wide and would include multi-layered plantings (i.e., trees, shrubs, and herbaceous plants that at
maturity will occupy ground-, understory-, and canopy-levels) with conifer trees (i.e., 86 pitch pine trees) to
minimize light penetration into the new forest. This planting area would also include 57 lowbush blueberry
shrubs and 4,295 switch grass plants. After establishment of these natural vegetation areas located landward
of the proposed retaining wall, the total forest area on the property would increase from 11.76-acres to
12.38-acres.
The subject property is adjacent to the 27±-acre Town of Southold Mill Road Preserve located between Mill
Road and the residential properties on North Drive. The Mill Road Preserve has an ecological community
composition similar to the subject property with successional shrublands and forest proximal to Mill Road and
Coastal Oak-Beech forests located to the east. The project would result in the creation of a new forest edge
approximately 105 feet from the Mill Road Preserve boundary along a short reach (approximately 99 feet) of
the shared property boundary located in the northeastern corner of the Preserve. This area is proximal to
historical disturbance associated with the clearing, filling, and hardening of the west shoreline of Mattituck
Creek on the subject property in the 1950s-1960s.The existing oak-dominated and successional forests in this
portion of the property have regenerated on the bare,exposed substrate.
The potential impacts associated with the new forest edge could include potential changes to the forest
microclimate and increased abundance of invasive plants and wildlife species,as previously described. These
edge effects are expected to extend approximately 195 feet into Mill Road Preserve from the northeastern
corner of Mill Road Preserve. The total area of the Mill Road Preserve that may be potentially impacted by edge
effects associated with the new clearing limit on the SYC property is approximately 0.38 acre (16,419±SF).
Existing residential properties are located along the eastern border of Mill Road Preserve. Therefore, the
eastern border of Mill Road Preserve is expected to have existing edge-related impacts due to past tree clearing
on these residential properties and the utility right-of-way and an increased abundance of invasive plants and
nest predators and parasites. Accordingly, some of this 0.38-acre area represents an intensification of an
existing forest edge rather than creation of an entirely new edge. The area subject to new or enhanced edge
effects accounts for approximately two percent of the 18±-acres of mature oak-beech forests in Mill Road
Preserve. Thus,the proposed action would not be expected to have significant adverse impacts on the forest
habitat quality or composition through the large majority of the Mill Road Preserve. Furthermore, the
magnitude of potential edge effects is expected to decrease over time due to the proposed landscaping
comprised of native trees,shrubs,and herbaceous plants including pitch pine(Pinus rigida),lowbush blueberry
(Vaccinium angustifolia), and switch grass (Panicum virgatum). Proposed edge plants would facilitate the
development over time of a dense "wall" of vegetation comprised of maintained canopy trees, regenerating
trees,and shrubs to fill in open space at the edge. This"sealing"of the edge through development of multiple
layers of vegetation may reduce the penetration of light into the forest and decrease the depth of edge impacts
towards the interior of Mill Road Preserve.
The decreased habitat availability associated with the loss of 32 percent of the site's forest habitat would likely
decrease the abundance and diversity of the plant and wildlife species that utilize the site. Wildlife that utilizes
the site's successional shrubland and successional forest habitats would not be adversely impacted by the
proposed action due to the maintenance of 13.77± acres (approximately 89 percent) of these successional
xii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
habitats. Similarly, wildlife species that are habitat generalists and utilize all of the site's habitats (i.e.,
successional habitats,forests,and developed areas)are also unlikely to be adversely impacted by the proposed
action,due to their general tolerance for human activity.
Wildlife species that are most likely to be adversely impacted by the proposed action,specifically the reduction
in Coastal Oak-Beech forest habitats from 12.60 acres to 8.28 acres,include birds or other wildlife that inhabit
mature forests, forest interiors, or have large patch size requirements. Songbirds that are expected to utilize
the site's Coastal Oak-Beech forests include species that forage for insects on and under bark (such as
woodpeckers and nuthatches),glean insects from canopy foliage(such as vireos),and/or catch airborne insects
(such as flycatchers and wood pee-wees). Some bird species may be found in both small and large habitat
patches,whereas other bird species are more frequently found in larger habitat patches than smaller patches.
Bird species that are not dependent on habitat patch size and/or species that have tolerance for small habitat
patches or edge habitats are likely to continue to utilize the smaller wooded habitat patches remaining after
completion of the project.
The Acoustic Report was also evaluated and no long-term noise-related impacts to birds and bird habitat
expected to result from the operation of the proposed boat storage facility. Post-development,no significant
adverse noise-related impacts would result. Additionally,no adverse impacts to wildlife or wildlife habitat are
expected to result from new outdoor lighting associated with the proposed action. The proposed lighting shall
be dark skies-compliant,downward directed lighting resulting in no increase in light levels beyond the limit of
the proposed buildings,access roads,and parking surfaces.
Eastern box turtles are expected to be found in any of the vegetated upland habitats on the site. The project
would result in a loss of approximately 6.05 acres of upland forest and shrubland habitat for eastern box turtle.
Potential adverse impacts to eastern box turtle would be avoided or minimized by conducting sweeps or
surveys for box turtles prior to commencement of clearing,grading,and excavation activities,and relocation of
any observed turtles to on-site areas that would not be disturbed. Silt fencing or other barriers would be
installed around work areas to prevent turtles from returning to construction areas.
No significant adverse impacts to tidal wetlands located on-site or within Mattituck Creek are expected to result
from the proposed action. No physical disturbance to tidal wetlands is proposed,and the project provides for
mitigation measures that would contribute to potential surface water quality and habitat quality improvements
in Mattituck Creek,such as new I/A OWTS's and new stormwater drainage infrastructure.
Consistency with Community Plans and Studies
Land Use
Upon implementation of the proposed action, the M-II zoned portion of the site utilized by SYC would be
modified from seven to nine buildings,increasing the total GFA from 68,817 SF to 170,317 SF(represents a 40
percent expansion). The two additional buildings (identified as Buildings 9 and 10 on the proposed site
development plans) would be situated perpendicular to the west of Buildings 7 and 8, which are situated
parallel to Mattituck Creek. The proposed two buildings would require modification of the upland portion of
the site to accommodate the construction at similar elevation to the current SYC facility. Specifically,
approximately 6.51 acres of land would be disturbed and excavated requiring approximately 135,000 CY of
material that would need to be removed from the subject site.
The proposed Building 9 would be located west of Building 8 and would be approximately 49,000 SF. The
proposed Building 10 would be located northwest of Building 8 and would be approximately 52,500 SF. All
yachts would arrive to and leave SYC via Mattituck Creek, relying upon the existing 85-ton travelift to lift the
boats from the water and transport them to and from the storage buildings. Upon arrival to SYC, only SYC
employees would have access to the vessels inside the building for any requested or required maintenance or
repairs.
xiii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Upon implementation of the proposed action,the current marine use would remain unchanged. As presented
in the Town's Local Waterfront Revitalization Program (LWRP) and evaluated further in this section of the
DEIS,Mattituck Harbor(Mattituck Inlet and Mattituck Creek)is the only harbor fronting the Long Island Sound
in the Town of Southold and was identified as one of 10 maritime centers on Long Island in the Long Island
Sound Coastal Management Program.Maritime uses at the subject property has persisted for over 60 years and
would continue to be as such upon implementation of the proposed action. Moreover, from a land use
perspective,the proposed action is consistent with the underlying intent of the prevailing zoning for the M-II
zoning district(see Zoning discussion in this section of the DEIS below). Accordingly,based on the above,no
significant adverse land use impacts would result from the proposed action.
Zoning
The proposed action would occur primarily within the M-II zoning district of the Town of Southold,with only
a portion of the proposed project affecting the R-80 zoned portion. The Project Area is 6.51 acres with 5.84
acres located within the M-II portion of the site and 0.67 acre located in the R-80 portion of the site. Only the
proposed haul road would be located on the R-80 portion of the site and would remain post development to
serve as an emergency access route to the subject property from Mill Road.
The proposed development is intended to support the current SYC operation and would be entirely located on
the M-II portion of the site. As excerpted from Section 280-54 of the Zoning Code,the intent of the M-II zoning
district is"...to provide a waterfront location for a wide range of water-dependent and water-related uses,which
are those uses which require or benefit from direct access to or location in marine or tidal waters and which, in
general, are located on major waterways, open bayfronts or the Long Island Sound." The proposed action is
consistent with this intent in that it seeks to provide storage facilities for yachts that are of a size that require
transport via water(as opposed to smaller boats that can be trailered).
Among the nine permitted uses in the M-II zoning district,the proposed action is consistent with§280,Article
XIII A(5), "Boatyards for building, storing, repairing, renting, selling or servicing boats, which may include the
following as an accessory use:office for the sale of marine equipment orproducts,dockside facilities for dispensing
of fuel and,where pumpout stations are provided,rest room and laundry facilities to serve overnight patrons." A
consistency analysis with the bulk and dimensional requirements in Section 3.1.2 of this DEIS indicates that the
proposed development complies with the requirements for development in the M-II zoning district
Southold Town Comprehensive Plan Update (Adopted September 2020)
A consistency analysis with the 2020 Comprehensive Plan is included in Section 3.1.2 of this DEIS and
demonstrates that the proposed action is consistent with the goals and objectives relevant to the subject
property and proposed maritime use.
Town of Southold Local Waterfront Revitalization Program
A consistency analysis with the Town of Southold LWRP is included in Section 3.1.2 of this DEIS and
demonstrates that the proposed action is consistent with the policies relevant to the subject property and
proposed maritime use.
Town of Southold Town Code Chapter 275-Wetlands and Shoreline
All of the proposed development would occur landward of the existing SYC buildings. Activities within 100-feet
of Town wetlands are limited to the proposed striping to formalize parking stalls in existing gravel-surfaced
areas,and the proposed French drains on the east side of Building 8. The proposed action is consistent with
the standards for issuance of a Trustees Wetlands Permit set forth at§275-12 of the Town Code.
xiv
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Mattituck Watershed Management Plan
The Mattituck Watershed Management Plan,which is part of the larger Long Island Sound, North Fork Study,
identifies the need to protect local groundwater and surface water resources while also noting that excess
nitrogen is a primary factor contributing to water impairment in local marine waters,primarily as a result of
conventional sanitary systems.The proposed I/A OWTS would be designed to reduce total nitrogen in treated
effluent to a minimum of 19 mg/L in accordance with SCSC Article 19.As such,the proposed sanitary system
would reduce nitrogen loading and be more protective of groundwater quality than continuing to utilize the
existing conventional septic system. As such, the proposed action would be consistent with the Mattituck
Watershed Management Plan.
NYSDOS Significant Coastal Fish and Wildlife Habitat
The subject property lies adjacent to the west of Mattituck Creek and south of Mattituck Inlet, which are
designated as Mattituck Inlet Wetland and Beaches by the NYSDOS as a Significant Coastal Fish and Wildlife
Habitat.The proposed action would occur outside the designated habitat and would not affect any significant
fish or wildlife communities.Furthermore,all stormwater from the Project Area and off-site contributing areas
would be contained and recharged on-site.The proposed action would not affect the Applicant's participation
in the Town's Pump-Out program;nor would it affect the existing CCE Marine Program that occurs on-site.It is
noted that the NYSDEC issued a Tidal Wetlands Permit for the proposed action and all conditions in the issued
permit would be implemented. Based on the foregoing, the proposed action would not have a significant
adverse impact on the adjacent Significant Coastal Fish and Wildlife Habitat
Human Health
Four 2,000-gallon LPG tanks are proposed to support the proposed radiant heat for the two boat storage
buildings.The LPG tanks are subject to the 2020 NYS Fire Code and the National Fire Protection Association 58
-Liquified Petroleum Gas Code,which sets forth requirements for installation,setbacks,and protection from
vehicle impact. The proposed fire plan would comply with these two codes. Additionally, at the
recommendation of the Southold Fire Marshal,a Fire Safety Plan has been developed by SYC to provide hazard
locations,utility and water supply information,and emergency procedures for its employees.Furthermore,the
proposed plan was submitted to the Mattituck Fire Department and no potential service issues were identified.
As stated in the correspondence from the Chief of the department, the local department is fully capable of
servicing SYC with the proposed improvements. The proposed action would not require SYC to modify its
current quantities of chemicals stored on-site nor require additional chemicals be stored on-site.
With the projected increase in stormwater recharge, the proposed action would result in a slight increase in
the water table of 0.01± feet immediately beneath the Project Area. The model shows no particle deflections
or trajectory changes, and thus, no effects on nearby wells are anticipated.Additionally,the particle tracking
analysis completed in the Groundwater Modeling Report indicated the domestic supply wells,having relatively
low pumping rates have, as expected, very narrow zones of influence. When comparing existing to post-
development conditions,there are no noticeable changes in particle track trajectories. This is due to the fact
that the proposed site excavation would take place entirely above the water table and the proposed site
modifications are only slightly adding more water to the local aquifer system due to the increased recharge
post construction. As such,the proposed site excavation would not have any impact hydraulically on the nearby
surrounding domestic supply wellhead zones of influence. Therefore,the proposed action would not have an
adverse impact on groundwater quantity nor the surrounding local domestic supply wells.
Transportation
A Traffic Impact Study(TIS)was prepared by Dunn Engineering Associates. As part of the preparation of this
TIS,the following tasks were undertaken:
xv
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Several personal,on-site field observations were made to observe the traffic movements under various
conditions.
• Collection and analysis of current existing traffic data,including traffic volumes and signal timings,as
available from the Town of Southold, the Suffolk County Department of Public Works, and the New
York State Department of Transportation(NYSDOT).
• Automatic Traffic Recorder(ATR)Counts at key locations on West Mill Road,Cox Neck Road and North
Road(CR 48). At the request of the Town of Southold Planning Board the ATRs were conducted during
the individual seasons of the year. The ATRs also included vehicle classification studies. The counts
were collected over a seven-day period to include Saturday and Sunday data.
• Supplementary intersection turning movement counts were collected at two key intersections to
determine intersection capacity. The turning movement counts were collected during the weekday
morning peak hours of 7:00 am to 9:00 am and pm peak hours of 4:00 pm to 6:00 pm.The intersection
turning movement counts also collected data on pedestrian traffic in the intersection and truck and
bus data also. As with the ATRs the turning movement counts were collected seasonally.Intersection
turning movement counts were collected at the intersections of:
• Cox Neck Road at West Mill Road/Breakwater Road
• North Road(CR 48)at Cox Neck Road
• Eastbound North Road(CR 48)at Northbound North Road
• West Mill Road at Bayview Avenue/Selah Lane
• An examination was made of the traffic flow on West Mill Road, Cox Neck Road and North Road (CR
48)in the vicinity of the site.
• Recent accident records obtained from NYSDOT were reviewed to determine if any accident problems
exist in the vicinity of the site.
• A trip generation analysis was performed to determine the additional traffic attributable to the
proposed project once complete and fully operational. In addition,a trip generation analysis was also
performed to determine the additional traffic that would be generated due to the construction of the
new storage buildings with particular emphasis on the numbers of trucks need to facilitate the project.
• A directional distribution analysis was performed to distribute both the completed project related site-
generated traffic and the construction related traffic onto the surrounding street network.
• A trip assignment analysis was performed determine traffic volumes that would result from the
increase of site-generated traffic related to the completed project being added to existing traffic to
determine the impact of the proposed development on the surrounding street system. A trip
assignment analysis was also performed to examine the addition of site-generated construction traffic
to existing traffic to determine the impact of the proposed development on the surrounding street
system
• Capacity analyses were performed at key study intersections as listed in Item 4 above,to examine their
ability to accommodate both the existing traffic volume and the additional site-generated traffic once
the project is complete and the construction related traffic while the project is being developed.
• A review of the access arrangements was made. The review include access during construction and
once the project is complete
xvi
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• An evaluation of the available parking and on-site circulation was made regarding traffic circulation,
safety,maintenance,and adequacy of layout.
• Conclusions were made regarding the traffic impact of the development on the surrounding street
network based on the data and facts gathered in this study.
• As a result of comments received from the Town and its consultants, additional data was collected
during August of 2022. This data included:
• Intersection turning movement counts at the intersections of Cox Neck Road at Bergen
Avenue,and Sound Avenue at Bergen Avenue for the evaluation of an alternative routing plan
for the excavation phase of the proposed project.
• Pedestrian and bicycle counts were taken from 6:00 AM to 6:00 PM during a weekday on Cox
Neck Road at Westphalia Road, West Mill Road at Bayview Drive/Selah Lane, Cox Neck
Road/West Mill Road at Breakwater Road,and Bergen Avenue at Cooper's Road.
• ATR counts were taken at the northerly terminus of West Mill Road at the entrance/exit to
Strong's Yacht Center and on Bergen Avenue between Sound Avenue and Cox Neck Road.
• Accident Records were updated to include all of 2021 from the NYSDOT. The accident
request was made for the latest three-year period ending December 31, 2021. Accident
records were also requested and received from the Town of Southold Police Department.
• An AUTO-TURN analysis was conducted to determine the viability of the proposed trucking route
accommodate trucks that will haul material from the site to facilitate the building of the project. AUTO-
TURN analysis was conducted at the following locations.
• The 90-degree turn in West Mill Road near the Strong's entrance.
• The S-curve along West Mill Road/Cox Neck Road near Breakwater Road.
• Turning movements at Sound Avenue at Cox Neck Road.
• Turning movements at Sound Avenue at Northville Turnpike.
• Turning movements at Northville Turnpike at County Road 58
• Turning movements at Sound Avenue at Bergen Avenue.
• Turning movements at Cox Neck Road at Bergen Avenue.
• An alternative routing plan,alternative material mitigation plan and the barging alternative have been
evaluated.
• The pavement analysis,which included ESAL calculations,as prepared by TSPE was evaluated.
• The vibration analysis performed by SoundSense has been reviewed and summarized.
As indicated in the TIS, the adjacent highway and street system will be able to accommodate the proposed
project. Although there would be a minimal increase in traffic from the development of the project, the
development of the site, as proposed, will not cause a significant negative impact on traffic conditions. The
following points should be recognized:
1. The proposed access plan has been designed to adequately provide for the projected traffic entering
and exiting the access driveway to assure the public safety and to minimize traffic congestion.
2. The additional site-generated traffic resulting from the proposed project can be expected to add only
11 entering and 2 exiting trips during the weekday morning peak hour.During the weekday P.M.peak
hour,the site-generated volumes are anticipated to be 11 exiting and 2 entering vehicle trips. These
trips will be generated by new employees at the site arriving in the morning and departing in the
xvii
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
evening. Other random trips will occur during the day,but the number of these trips will be low and
io the range of none to one oc two ivaohour.
3. The intersection capacity analyses conducted to measure the impact of the new site-generated traffic
on the surrounding street and highway network indicate the new traffic can bn accommodated with
negligible traffic impact.
4. The amount of construction traffic the project will gnuncatn during each phase of construction was
dntmcnoiund and the potential impacts examined utilizing intersection capacity analyses. The
intersection capacity analyses indicated that the construction gmomcotmd traffic would have minimal
impact oo the capacity of the road network.
S. Five half years of accident data were obtained or Cox Neck Road/West Mill Road and the intersection
of Cox Neck Road at Sound Avenue/West Mill Road. There are oo demonstrative conditions along the
road thatwould indicate that the projeavolumes would increase the potential for additional accidents.
Accidents occurring at the intersection of Cox Neck Road at Sound Avenue/North Road were typical of
those occurring at similar signalized intersections with similar traffic volumes.
6. Counts of pedestrian and bicycle usage along Cox Neck Road/Mill Road indicated only minimal usage
by pedestrians and bicycles. The accident study revealed one accident involving bicycles or
pedestrians. Despite the relative narrowness of the road the small numbers of additional vehicles the
project will generate during construction and after cuoop|eduu should not increase the hazards to
bicycles and pedestrians also using the road. Motor vehicles operating on any public roadway within
New York State must share the roadway with bicycles and pedestrians using the same road. As such
any motor vehicle will have to give way to pedestrians and bicyclists using the road. Io most cases,
they will be able to move over and pass the slower moving bicycles and pedestrians. lu some cases,
they may have to slow and allow a vehicle traveling in the other direction to pass before moving over
tn pass the bicycle urpedestrian. This isa common occurrence on the relatively narrow eastern Long
Island roadways and is currently occurring on Cox Neck Road/West Mill Road,but with fewer trucks.
The minor increase in truck trips in unlikely to cause any additional problems.
7. Cox Neck Road/West Mill Road,particularly the section north of Breakwater Road have generally light
traffic volumes so the combined small vehicle and large vehicle traffic even with the additional truck
loading from site generated construction should be tolerated 6ythe existing road structure. The
Applicant is committed to correcting any damage that is done by construction activities. A survey o{
the pavement condition will be done prior to the commencement of construction and the roadway will
be resurveyed following the completion of the project. In coordination with the Town o{Southold
Highway Department,the before and after surveys will be reviewed, and if damage did occur due to
the construction,the appropriate measures will be taken to correct it.
8. An alternative project has been developed that includes the construction of two boat storage buildings
of 52,500 SF and 49,000 SF to support the smaller boat storage operations of SYC,along with elevating
the roof heights of three existing buildings to accommodate larger vessels. As such, this alternative
would still require 11 new employees working Monday thru Friday as does the proposed action. The
alternative will generate the same amount of traffic as does the proposed action during the hours of
analysis. The primary difference with respect to traffic impacts once the project is completed,is the
new buildings under the alternative will he used for the storage of significantly smaller boats then
would the buildings constructed under the proposed action. The proposed action would store boats
of sixty feet or more,while the buildings constructed under alternative would store up to 300 smaller
boats. Boats more than 60 feet cannot be trailered to the site and must arrive via the water. Smaller
boats,as are anticipated to be stored in the project alternative,can readily be transported to and from
the site bytrailer. It is anticipated the half the smaller boats (i.e., 150) stored at the site would arrive
and depart by trailer,which would have a greater traffic impact than the proposed action.
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
9. The proposed site plan which provides 57 total parking spaces with 4 handicapped spaces will
adequately meet the parking needs of SYC.All site parking is accessed from a centralized access aisle
located between the bulkhead along Mattituck Inlet and the buildings.The aisle has a minimum width
of 24 feet and is often more generous than that. The site circulation plan is adequate for the intended
purpose.
10. The construction of the project will generate a substantial amount of truck traffic. A designated route
has been proposed to carry the increased truck traffic for the construction period. The designated
truck route utilizes the Long Island Expressway (I-495) to County Road 58 (Old Country Road) to
County Road 43(Northville Turnpike)to Sound Avenue to Cox Neck Road to West Mill Road. The route
is within the capacity of the roadways to carry the truck traffic.
11. There will be no offsite staging areas utilized during any phase of the project's construction. All
construction material will be delivered to the site directly from suppliers via the designated truck
route. Excavated material from the site will be transported directly to the material handler via the
designated truck route.Construction materials and excavated materials removed from the site will not
be transported on weekends. No roadways other than designated truck route will be used for
transportation of project materials.
12. The potential of the increased truck traffic resulting from the project's construction to cause vibrations
adjacent to the roadway was evaluated. It was determined that the project trucks would not cause
vibrations that would impact adjacent historical structures or residential homes,
13. An alternative was evaluated which would have hauled the material excavated from the site via barges
brought to the SYC. That alternative proved unfeasible. The Mattituck Inlet did not have sufficient
depth to allow the barges to operate. In addition, the inlet channel has significant curvature that
further prohibits navigation of the waterway by barges.
14. A series of potential mitigation measures have been suggested,including retaining approximately 10
percent of the required excavation material on an unused residentially zoned portion of the site,
monitoring and repairing damage to Cox Neck Road/West Mill Road during the construction period,
and making traffic control improvement to the roadways.
Aesthetic Resources
Upon implementation of the proposed action,the visual setting and aesthetic character of the site would remain
as a maritime use with full-service marina and yacht operation with accessory buildings. The two proposed
boat storage buildings would be situated to the west of Buildings 7 and 8,at a slightly higher FFE. Specifically,
the proposed buildings would be situated at Elevation 10 feet AMSL,which is two (2) feet above the FFE's for
Buildings 7 and 8 (i.e.,situated at Elevation 8±feet AMSL). Based on the architectural elevations provided by
the architect,Jeffrey T. Butler, P.E., P.C.,the proposed height of the buildings would be 39 feet-3 inches from
grade to the eave and 45 feet-8 inches from grade to the top of ridge. The mean roof height is 42 feet-6 inches.
With a proposed 10-foot AMSL FFE for both buildings,the top(mean height between eave and ridge)elevation
of the buildings would be 55.67 feet ASML.
As noted in the 2020 Comprehensive Plan(page 32),a prominent identifying feature for the hamlet of Mattituck
is Mattituck Creek which provides public waterfront access opportunities that are important to the Town as a
maritime center.It is important to note SYC does not provide public waterfront access and none is proposed as
part of the proposed action.The proposed action supports the importance of and reliance upon the maritime
industry in the Town by providing overwintering storage for larger vessels.
Due to site topography,the proposed action requires soil and vegetation removal that would alter the tree line
by setting it back an additional 500± feet from the current condition. Supplemental plantings along the
xix
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
retaining wall are proposed to create a"sealed edge"of vegetation. As illustrated on Renderings A-1,A-3,A-5,
and A-13 (and evaluated further below),the existing visual setting of the SYC operations at the water's edge
with woodland landward in the background would be maintained. The supplemental plantings would retain
the existing natural and visual features at the property.
Thirteen (13)viewsheds were assessed for the existing visual setting of SYC from points surrounding the site,
including users of the Creek.To understand the potential visual impact of the proposed action on surrounding
sensitive visual receptors, the same viewpoints were assessed with post-development structures rendered.
The Zone of Visual Influence considers existing surrounding development and existing operations at the subject
property as well as changes in topography that could impact the proposed action's visibility. Based on the 13
viewsheds,the following is expected:
• Views from the East: Under existing conditions, the current views are of Mattituck Creek, SYC
operations and portions of the woodland upland area. Under post-development conditions,the views
would be similar because Buildings 6,7,and 8 would obscure views of the proposed buildings.
• Views from the North: Under existing conditions,the current views are of the woodland upland area
and a portion of the existing operations. Under post-development conditions,the views would consist
of the forested area to be retained, the southern facade of Building 9, and similar to the proposed
action,views of existing Buildings 7 and 8 would remain visible.
• Views from the South: Under existing conditions,the current view of the subject property is of limited
operations in the southeast portion of the subject property and Mattituck Creek. Under post-
development conditions, the post-development views would be similar to existing conditions. Select
docks and bulkhead would remain visible as well as the eastern facade of Building 8 and southern
portion of Building 7. Most of Buildings 9 and 10 would be obscured from view. However,the top of
the eave for Building 9 would be visible to the southwest and most of the eastern facade and eave of
Building 10 would be visible to the northwest.Furthermore,the northeastern corner of the Evergreen
concrete retaining wall would be visible between Buildings 7 and 10.The impact to the visual setting
of the subject property would be minimal.
• Views from the West: Under existing conditions,the SYC operation and future improvements would
not be visible from Mill Road.
• Views from most southern trail on Mill Road Preserve towards SYC: Under existing conditions, the
current view of the subject property is of the undeveloped upland heavily forested area. The marina
operations and Mattituck Creek are obscured by the forested area and the topography. Under post-
development conditions, the views would consist of the woodland area of the subject property that
would not be disturbed and a portion of the western and southern facades and roof of Building 9,the
roof and a portion of the southern facade of Building 10,and a portion of the western facade of existing
Building 8.The cover in the setback area would remain.The impact to the visual setting of the subject
property would be minimal.
• Views from 5106 West Mill Road towards SYC: Under existing conditions, the current view of the
subject property is the roofs of Buildings 7 and 8 and Mattituck Creek beyond. Under post-
development conditions,the views would be similar. Views of portions of the roofs of Buildings 7 and
8 would remain. All woodland area between the property line and edge of disturbance would remain.
However, the view southwest would include the roof of Building 10 and a portion of the northern
facade of the building.Additionally,the top of the vegetation on the northern portion of the Evergreen
concrete retaining wall would aid in obscuring views onto the proposed buildings. Overall, the
viewshed change is not significant.
xx
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Views from a Kayak: As part of the DEIS, representative views from a kayak of typical yachts at the
Inlet Entrance near Breakwater,a 95-foot yacht adjacent to the Old Mill Restaurant(at the narrowest
part of the Inlet), and a 95-foot yacht in front of SYC dockage and buildings were taken. These
photographs demonstrate the type of vessels expected to be stored at SYC.
Although the views of the subject property would be altered as a result of the proposed action,they would not
be significant as depicted by the photo-simulations,landscaping plans,and architectural elevations.Buildings
7 and 8 would effectively screen most of the proposed Buildings 9 and 10 from properties to the east of the
subject property.
The proposed action would expand in line with the existing scale of development on the subject property.The
proposed buildings would be constructed behind Buildings 7 and 8 perpendicular to Mattituck Creek such that
the length and mass of the proposed buildings would not be visibly obtrusive to surrounding properties located
along Mattituck Creek. Furthermore,the proposed buildings would be constructed with the same material as
the existing buildings (i.e.,blue siding with white trim windows and eaves) such that it would blend with the
aesthetics of existing development on-site. The proposed Evergreen concrete retaining wall as well as the
higher elevation of areas north,west,and south of the proposed action would also screen much of the views of
Buildings 9 and 10.Although the intent of the proposed retaining wall is for slope stabilization,the proposed
vegetation along the retaining wall would create a green wall such that it would blend into the existing
landscape.
Community Character
While the proposed action would increase the building area on the subject property, the overall proposed
density complies with the bulk and dimensional requirements set forth for the M-II zoning district.Additionally,
the proposed action requires the modification of land,soil,topography,tree cover and soil material; however,
the character of the subject property for maritime use would be maintained.The existing pattern of maritime
uses with residential uses landward of Mattituck Creek and interspersed along the water's edge would still be
maintained.
Upon project implementation, the tree line would be setback for a distance of approximately 500 feet. As
illustrated on Renderings A-1,A-3,A-5,and A-13,the existing visual setting of the SYC operations at the water's
edge with woodlands landward in the background and the tree line would be maintained.
The proposed buildings would be constructed behind Buildings 7 and 8 perpendicular to Mattituck Creek such
that the length and mass of the proposed buildings would not be visibly obtrusive to surrounding properties
located along Mattituck Creek. Furthermore, the proposed buildings would be constructed with the same
material as the existing buildings(i.e.,blue siding with white trim windows and eaves)such that it would blend
with the aesthetics of existing development on-site.
To accommodate the proposed action, 5.51± acres of the existing forested land (Coastal Oak-Beech Forest/
Successional Southern Hardwood) on the western portion of the subject property would be removed. While
the proposed action would remove a portion of the existing forested land, 11.76±acres of forested area on the
western portion of the subject property would remain. The proposed action would modify the existing
topography on site to achieve a level building area and thus, would modify the existing tree line west of
Buildings 7 and 8 on the subject property. Upon project implementation,the tree line would be setback for a
distance of approximately 500 feet.As 11.76±acres of forested land(Coastal Oak-Beech Forest/Successional
Southern Hardwood) would remain on the western portion of the site and the tree line would be minimally
setback, the subject property would continue to provide a rural aesthetic and character for the surrounding
area upon project implementation.
The proposed action would be consistent with the community character of the surrounding area,including to
boaters and others traversing the waters of Mattituck Creek and Mattituck Inlet. Mattituck Creek has an
xxi
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
established maritime and commercial component. As part o[these components, buildings are present along
the creek to support the maritime and commercial uses of this area.As such,the construction of two additional
buildings on the subject property, vv6ic6 is currently improved with seven (7) buildings for the existing
maritime use, is consistent with the community character of the subject property and surrounding area. It is
noted that during boating season(i.e.,June through September),the proposed two buildings would be empty
(or largely empty as some boat owners may elect not to launch their boats in particular season) and there
would be no activity occurring on that portion of the subject property.Additionally,as described in this section
of the DBlS above' the proposed buildings would be constructed 6nbiod Buildings 7 and 8 such that the
proposed buildings would not be visibly obtrusive to passersby traversing K4athtucb Ccomk' The proposed
buildings would be constructed with the same material as the existing buildings (i.e., blue siding with white
trim windows and eaves)such that it would blend with the aesthetics of existing development on-site.As such,
implementation of the proposed action would not have a significant adverse impact on community character
for boaters traversing K4atbtuck Creek as similar buildings currently exist along the creek, on the subject
property and are part of the established maritime and commercial uses in this area.
As indicated in the 2020 Comprehensive Plan, the Vision Statement for the Town of Southold is. "future
planning shall be compatible with existing community character while supporting and addressing the
challenges of continued land preservation,maintain a vibrant local economy,creating efficient transportation,
promoting diverse housing stock, expanded recreational opportunities and protecting natural resources"
(pago1). The proposed action is supportive of several components of the 7ovvo's vision statement including
improving the economy,expanding recreational activities,and protecting natural resources.Siting the storage
buildings at SYC is protective of the maritime culture associated with the Town of Southold as it would provide
indoor winter storage for boaters on local waters at a facility that has existed along Mattituck Creek for over
60 years.Constructing and operating winter boat storage buildings would bring additional jobs and a new tax
revenue stream to the Town of Southold.In addition to direct benefits to the Town,the Applicant is responding
to a market demand for larger boat owners looking for local indoor winter storage.
Overall, based on the above, no significant adverse community character impacts would result from the
proposed action.
Open Space and Recreation
Impacts to Mattituck Harbor
As depicted ouRendering A-3,the post-development views of SYC from the south along Mattituck Creekwould
be similar to existing conditions. Select docks and the bulkhead would remain visible as well as the eastern
Ca�admo[Building 8 and southern portion of Building 7. Most o[Buildings 9 and 1O would bm obscured from
view. However, the top of the eave for Building 9 would be visible to the southwest and most of the eastern
fa�ade and eave of Building 10 would be visible to the northwest Furthermore,the northeastern corner of the
Evergreen concrete retaining wall would be visible between Buildings 7 and 10.Additionally,as discussed in
Section 2.2.2 of this DEIS,the proposed action would not disrupt the existing tidal flows or depths of Mattituck
8ac6oc nor impact the existing user groups u[K8atdtuck Harbor. As discussed in Section 17.2' cuuytcucduo
noise would be of temporary nature and all noise impacts would cease upon completion.While there would be
temporary increases in noise levels during this period,the proposed project would comply with the permitted
times set forth iu Chapter 1OOuf the Town Code. Additional operations are limited tu boats being taken out u[
and put into the creek during certain months and operational noise is not expected to have significant adverse
effects to those recreational users within Mattituck Harbor.While there would be temporary increases in noise
levels during this period,the proposed project would comply with the permitted times set forth in Chapter 180
of the Town Code. The proposed action would benefit Mattituck Harbor as it would continue to support the
boating community as it would allow owners of larger vessels the option of climate-controlled storage rather
than transport to warmer waters for the winter months.Therefore,no significant adverse impacts to Mattituck
Harbor are anticipated.
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
Impacts to Oregon Marsh State Tidal Wetlands
Use of this passive open space would remain unaffected by the proposed action.During operation,the proposed
action would only introduce activity at SYC during the early spring (April-May) and late fall
(October-November)that would not be discernible from the existing conditions.As discussed iu Section 3.7.3'
construction noise would be of temporary nature and all noise impacts would cease upon completion.While
there would be temporary increases in noise levels during this period,the proposed project would comply with
the permitted times set forth in Chapter 180 of the Town Code. Additional operations are limited to boats being
taken out of and put into the cconb during certain n000d6s and operational noise is not expected to have
significant adverse effects to those recreational users within Oregon Marsh State Tidal Wetlands.There would
be no new impact on Oregon Marsh State Tidal Wetlands from April to September 30th,which is likely to be a
time when NYSDEC issues the most permits for its use. Therefore, no significant adverse impacts to Oregon
Marsh State Tidal Wetlands are anticipated.
Impacts to Mill Road Preserve
K0Ol Road Preserve is accessible year-round to 6odb residents and visitors to the Iovvo of Southold. It is
expected the highest volume of use for the trails would remain the same as existing conditions,between April
and Smptoozboc During construction, vvbicb is anticipated to coozozoucm in nnid-Dmcmnobmc 2023 and be
completed in October 2024,there would be a slight increase in activity during the timeframe during which the
trails are frequently used.As discussed in Section 3.7.2, construction noise would be of temporary nature and
all noise impacts would cease upon completion. VVkiln dbnro would be temporary increases in noise levels
during this period,the proposed project would comply with the permitted times set forth in Chapter 180 of the
Town Code and the truck activity associated with excavation would be limited to the weekdays. Additional
operations are limited to boats being taken out of and put into the creek during certain months and operational
noise is not expected to have significant adverse effects to those recreational users within Mill Road Preserve.
The existing forest edge of the K0iU Road Preserve would be altered as a result of the proposed action. The
ecological community composition of Mill Road Preserve is comparable to the proposed action.The proposed
action would result in an intensification of use within the existing forest edge as edge effects would be shifted
to approximately 70 feet from the shared property boundary with the subject property in the northeast corner
of Mill Road Preserve.The effects of the edge would extend approximately 200 feet in to Mill Road Preserve.
However,as indicated in the ecological assessment,the proposed action would not result in significant adverse
impacts oo the forest habitat quality for Mill Road Preserve.
The highest volume of activity at SYC is during the boating season,which is March 15 through September 15.
During this time,boats are transported to and from Mattituck Harborvia travelifts,boaters,fishermen,and CCE
FLUPSY operators access the floating docks,and boaters utilize the pump-out services and fueling station.Upon
ioop|0000utadon of the proposed acdnu' this high vn|u000 of activity during this season under the proposed
action would remain the same as existing conditions and corresponds with the highest volume of use for the
trails.
Off-season activity at3YC. from approximately September lS through March lS' includes boat maintenance
and repairs which would continue upon implementation of the proposed action.As part of the proposed action,
additional activity at SYC during the early spring(April-May)and late fall(October-November)would only be
for the transporting of the yachts to and from the storage buildings and K4aUibuck Creek. From K4iU Road
Preserve,the addition of this activity would not be discernible from existing conditions and would occur when
the trail is not frequently used.As indicated in Viewpoint 4 discussed earlier in Section 3.4.2,post-development
views vvoo|d consist of the woodland area of the subject property to not be disturbed and a portion of the
western and southern fa�ades and roof of Building 9,the roof and a portion of the southern fa�ade of Building
10,and a portion of the western fa�ade of existing Building 8.The cover in the setback area would remain.
The proposed action would not alter the public's enjoyment of the Town-owned preserve property during all
phases of the action as there would be no new impact on Mill Road Preserve from April to September 30,which
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
is likely to be a time when the trails are most frequently used. Overall, based on the above, no significant
adverse impacts to Mill Road Preserve are anticipated.
Impacts on Vessel Traffic
As explained in the Boat (Vessel) Study, it is estimated that approximately 547 boats are active in Mattituck
Harbor on a peak season day. As concluded in the Boat(Vessel) Study, the proposed action would increase
boats in the off-peak season(i.e.,April-May for yachts returning to the water and October-November for yachts
arriving to SYC for storage)for a 12-week timeframe in the spring and fall. As such,this averages to an increase
of seven boats per week or one-to-two per day during this off-peak time. This increase is nominal and would
not inhibit other maritime uses on Mattituck Harbor.Also, SYC will schedule all boats to/from its facility. As
the vessel traffic would be comparable to existing conditions, it is not anticipated the proposed action would
alter the ability of personal watercrafts and non-motorized watersports,such as kayaks and SUPS,to navigate
within Mattituck Harbor.Viewpoints 12 and 13 indicate navigability within Mattituck Harbor is not impacted
by larger vessels as they were taken from the perspective of a kayak with a 95-foot yacht present adjacent to
the existing SYC operations.Additionally,many of the yachts to be accommodated by the proposed action are
anticipated to be existing boats utilizing local waters customers electing to store their yachts in a climate-
controlled facility closer to home rather and eliminates the need to relocate the vessel to warmer climates for
winter storage.Therefore,no significant adverse impacts to vessel traffic on Mattituck Harbor are anticipated.
Noise
SoundSense, the acoustical engineering firm for the proposed action, has prepared an Acoustic Report to
evaluate the existing acoustic conditions at the subject property,as well as the analysis of the expected acoustic
impacts of the proposed development. The acoustic analysis included the collection of existing sound level
readings at the subject property as well as readings along the planned truck route for the excavation and
construction phases.These existing sound levels served as the background sound levels for the area that were
incorporated into all noise predictions completed for the proposed project. The measured sound levels were
used in conjunction with: (1) the traffic data generated in the TIS to assess the potential increases in traffic
noise both during construction and in the Build condition,and (2)the equipment types and utilization factors
provided by Red Rock Industries to develop a construction noise model.Any potential increases in sound levels
at the receiving locations evaluated due to increased vehicle/truck passbys, construction activities, and final
sound levels with the new development have been considered for the proposed project.
Construction Noise Impacts
While receivers near the subject property would be temporarily impacted by the construction noise, noise
impacts due to construction are specifically exempt from the Noise Code. Additionally, all construction
activities would be limited to Monday to Saturday from 7:00 am to 7:00 pm. The excavation phases with truck
activity would be limited to Monday to Friday from 7:00 am to 5:00 pm as mitigation offered by the Applicant.
On Saturday's and after 5:00 pm on weekdays, on-site activity would be vehicle and machinery maintenance
and planning for the following workday or Monday for a 7:00 am start. No work would be performed on Federal
or State holidays,or on Sundays.
The Acoustic Report evaluated 18 receptor locations and found there to be a significant increase in noise at
receivers R1-R16 for at least one phase of construction for either the peak hour or 8-hour Leq. For Receivers
R1- R8,the increases are predominantly due to sound created at the Project Site from construction activities.
These increases would be considered a significant impact,as defined by the NYSDEC criteria,during the periods
of construction. However, the construction-related noise impacts would be limited to the times and days
specified,which are permitted by Town Code,and would be temporary. For receivers R9-R18,any increase in
the sound levels would be dependent on additional traffic,which is highest during the excavation phases.Sound
levels are higher than recommended by the NYSDOT at receivers R10-R14 during the excavation phases,and
xxiv
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
during all construction at receivers R14 and R15. However,the NYSDOT criteria are not standards,and these
increases are temporary only during construction.
Additionally,the sound levels presented represent exterior sound levels. Based uoNYSD0T criteria,the sound
levels in interior spaces would be 20'35 dB less than the levels ykuvvu. As excavation is proposed for mid-
December d6coug6May,U6enoajucityu[d6iypmriudvvuuldsceonustrmoideutsiuduocuaudvvouldcoioicoized6c
impact to quality of life. If the cmducbuu of 20 d8 is applied to the traffic data for receivers D10-1114' vv6ic6
exceed the outdoor recommendations from the NYSDOT,the interior recommendations for interior noise levels
are met and would be within the NYSDOT recommended criteria for those receivers.
For the construction phnym' the impacts would occur from late-March to late-September, when outdoor
activities are occurring. While there would be temporary increases in noise levels during this period, the
proposed project would comply with the permitted times set forth in Chapter 180 of the Town Code.
To mitigate noise impacts to surrounding properties and wildlife during the excavation and construction
phases,the following measures would be implemented:any vehicle which requires the use of a back-up alarm
will use a white noise back-up alarm instead of a single tone beep; all trucks and drivers will be instructed to
disengage all Jake Brake mechanisms once turning on to Cox Neck Rod from County Route 48; and all trucks
utilized would be Tier 4 certified byD.S.EPA standards.
Post-Development Impact Analysis
As a proposed winter storage facility,the buildings would be largely inactive for almost half of the year. The
noise would occur when boats are loaded into and out of the building. Dun to the proposed grading, the
retaining wall would function as a sound barrier, largely containing the noise within the graded area. No
receiving locations exceed 6 dBA above the Existing Condition sound levels.This is categorized as"no impact"
as classified by the NYSDEC evaluation criteria.The greatest predicted increase would be 4 dBA at Receiver R2.
Furthermore,the projected sound levels also meet the conditions of the Noise Code at all receiving locations.
The results of the analysis show that in the Build Condition that mitigation measures would not be required.
Air Quality
An Air Quality Evaluation was prepared to evaluate construction-related impacts and post-development
conditions atSYC.
Mobile Source Evaluation
Short term air quality impacts may occur during the excavation phase of the project; however, long-term air
quality impacts would be inconsequential.Post-development,the addition of stationary emission sources is not
proposed and vehicular traffic due to the expansion would bmminimal. The analysis u[the air quality impacts
due to construction activities was completed considering the types of the activities conducted and the type of
equipment utilized during each phase.
Air mooisyiuus would be generated from the operation u[uu'ruad oouhUe construction equipment as well as
employee passenger vehicles during construction of the proposed project.Vehicle miles traveled (VMT) data
for each on-road construction vehicle and employee trip were estimated from cuuodtcip distances and the
number of vehicles and employees based on the activity specific construction schedule.It was assumed that all
on-road construction vehicle equipment would use diesel fuel and all passenger vehicles would use gasoline.
Typical vehicle types would be passenger car, passenger trucks, and single unit short-haul construction
vehicles.On-road mobile equipment emission rates for those pollutants discussed earlier(i.e.,CO,NOx and PM)
were estimated. The emission rates were compared tothe U.S. EPA General Conformity De 0iininoisTable.
General Conformity ensures that the actions taken by a federal agency do not interfere with a state's plan to
attain or maintain national standards for air quality or contribute to NAAQS violations. Based on the analysis,
om
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
the anticipated emission rates for each phase of the project are well within the annual Conformity De Minimis
threshold,therefore it is expected that on-road vehicle emission generated from the project construction would
not have a significant adverse impact ou air quality.
Air emissions would be generated from the operation of off-road mobile construction equipment.The U.S.EPA
has adopted multiple tiers of emission standards,which are based upon engine size and manufacture year.The
engine tier standards were established to reduce soot,smog and other types of dangerous pollutants that are
emitted from diesel engines.In 1998,Tier 1 standards were introduced for equipment under 37 KW.The more
stringent Tier 2 standards took effect from 2001 to 2006, and yet more stringent Tier 3 standards phased-in
from 2006to 2008 (Tinr1 standards applied only for engines from 37'560 kW). In May20O4' the U.S. EPA
signed the final rule introducing Iimc 4 emission standards, vv6ick were phased-in over the period of 2008-
2015.The Tier 4 emission introduced substantial reductions of NOx(for engines above 56 kW)and PM (above
19 kW).CO emission limits remain unchanged from the Tier 2-3 stage.Tier 4 equipment,as defined by the U.S.
EPA, correlates tothe most recent and most stringent emission standards established bythe O.S. EPA and
California Air Resources Board. As excerpted from the Air Quality Evaluation, Tier 4 engine certification is
applicable to new engines found in off-road equipment including cuustzucbuu, mining and agricultural
equipment,marine vessels and workboats,locomotives and stationary engines found in industrial and power
generation applications. "As of January 1, 2014,these emissions standards apply to new engines that power
equipment commonly found in most construction and agricultural applications vvhi|m new engines
manufactured for much larger applications including noarioo' |ucunoudvos must have met the standard by
January 1' 2015. These emissions standards apply to new and renuauuhactured engines and do not apply to
older engines."
The analysis performed herein evaluates the potential impacts associated with trucks and equipment that are
equipped with engines that are Tier 3 or Tier 4 compliant for a conservative air quality impact assessment
approach; however,it is noted that the Applicant has committed to utilizing trucks and equipment that are all
Tier 4compliant. As described above,Tier 4 regulations are the strictest U.8.EPA emissions requirements for
off-highway diesel engines. As such,the use of all Tier 4 compliant trucks and equipment would further reduce
emissions of PM and NOx ensures that federal emission standards are being achieved. Based ou the analysis,
emission estimates are well within significant threshold values and,therefore,no significant adverse impacts
from mobile off-road emissions would 6eexpected.
Fugitive dust was also evaluated and quantified without mitigation. Based on the total area ofconstruction
(6.51±acres)and the total project duration of approximately 13 months,the Total Suspended Particulate(TSP)
emission rate of 1.2 tons/acre/month of activity yields a total TSP emission rate for the entire project to be
approximately 101.5 tons ofTS9' without mitigation. However, in order to mitigate the impact of the
generation of fugitive dust during construction, particularly during dry periods, the following mitigation
measures will be employed during construction,as necessary: minimizing the exposed area of erodible earth;
applying wet suppression to material piles and unpaved areas when there is visible dust; use of covered haul
trucks to move construction material; use of plastic sheet coverings for material piles; and z material wind
barrier consisting of six-foot fence with filter fabric vvnn|d be installed around the northern and western
portions of the Construction Excavation Area. With the implementation of the above measures,there would be
no significant adverse impacts created by fugitive dust generation and the resultant air quality impacts would
be avoided.
Carbon Stock Removal Evaluation
Carbon stock is the amount of carbon that has been stored within the forest ecosystem, mainly within living
biomass(trees and other vegetation)and soil,and to a lesser extent,in dead wood and forest litter as the result
ofCO2 uptake from the atmosphere.Anything that absorbs more carbon from the atmosphere than isreleases
is called a"carbon sink."Because of the complexity of estimating forest carbon stock,and to maximize efficiency
for the purpose of this project, the carbon sequestering evaluation used formulas from published studies to
calculate carbon stock estimates for live adult trees and estimated the associated carbon stock values for the
cmnuaioiug t6cmn carbon pools using ratio estimates. Studies have nydouatnd that 17± percent of total forest
xxvi
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
carbon stock is stored in above-ground biomass,6±percent is stored in below-ground biomass,>1±percent is
stored in dead wood, 5±percent is stored in forest litter,and 72±percent is stored in the soil.
Under existing conditions, there are 2,408 mature trees (greater than 6 inches in diameter) at the subject
property.The existing total above-ground green weight was estimated to be approximately 5,721,580 lbs.and
the total carbon stock is estimated to be approximately 2,488,887 lbs. Based upon a conservative 650 tree
removal number(although field adjustments are likely to reduce this number),there would remain 1,758 trees
on the subject property. As a result of the tree removal, it is estimated that the above-ground green weight
would decrease by 1,799,078 pounds, and the total loss of stored carbon due to tree removal would be
approximately 782,599 lbs. However,the carbon stock ratios are estimates for a variety of forest types and is
not specific to Long Island. Also, based on the soil borings, the soil material consists of predominantly sand
with little to no organic material with the exception of a less than 6-inch topsoil in some areas. Carbon
sequestering removal ability in soil is directly related to the content of organic material, therefore it can be
assumed that the carbon stock ratios are an overestimate.
There are many uncertainties when evaluating carbon fluxes from vegetation growth and land-use change in
the global carbon cycle.This is not considered to be a significantly sized clearing area and,therefore,adverse
impacts due to tree clearing/carbon stock loss are considered negligible. It is also noted that regulations for
the removal of carbon sinks do not exist at the local, state or federal level; however,the proposed clearing is
consistent with the prevailing bulk and dimensional requirements of the M-II zoning district set forth in the
Town Zoning Code(Chapter 280).Zoning permits a maximum lot coverage of 30 percent and the proposed plan
includes 24.7 percent lot coverage.
Carbon Sequestration due to Hard Clam Farming
The Air Quality Evaluation quantified the existing FLUPSYs as hard clams benefit the ecosystem by acting as a
carbon sink. It is estimated that on average that the shell of a marketable hard clam (about 1" in shell height
and less than 2"in length) contains 2.93 grams of carbon and the farming program is expected to result in the
harvesting of 1.5 million clams annually. Thus, the projected 1.5 million clams harvested annually have the
potential to sequester 9,680 lbs. of carbon. As such, this program has the beneficial impact of carbon
sequestration. It is noted that the number of clams harvested have well exceeded the minimum goal of 1.5
million/year. As such,this sequestration number provided herein represents the minimum expected annually.
Supplemental Planting
The proposed action includes the planting of 135 trees,including 95 pitch pine trees(minimum 4-5 feet height)
and 40 trees consisting of staghorn,sumac,and shadbush to offset carbon stock loss in the Project Area. The
planting of 135 pine trees would reduce the carbon sink loss from the assumed 650 trees (for the purpose of
this analysis,as described above)to 515 trees.Using the same methodology discussed earlier in this section,it
is estimated that 95 adult pitch pine trees would store 80,191 lbs.(40±tons)of carbon,decreasing total carbon
storage loss (above&below-ground biomass) from 391 tons to 351 tons. This decrease does not include the
40 additional small trees,which would have some additional benefit.
Overall,based on the above,no significant adverse air quality impacts would result from the proposed action.
Social and Economic Impacts
Proposed Services
Upon implementation of the proposed development,SYC would have two new buildings(52,500 SF and 49,000
SF)for the sole purpose of indoor,heated storage for larger vessels(i.e.,yachts). The existing storage buildings
would remain the same and a reconfiguration of the staging areas and dry-dock storage is not proposed. Boat
owners who typically store their boats in warmer climates in the winter and those looking to store their boats
xxvii
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
in climate-controlled space locally are the anticipated new yacht customers. It is anticipated the boat owners
would be existing customers who currently dock at SYC or Strong's Water Club,new yacht customers from the
surrounding Southold community, as well as other ovvumcu on Long Island, Westchester County, and iothe
States of Connecticut and New Jersey. The boats would arrive to the facility at the close o[boating season(i.e.,
October-November) via Mattituck Inlet, be hauled from Mattituck Creek via the existing 85-ton travelift and
moved to the boat storage buildings. At the beginning of the next boating season (im, Apdl-K8ay). the same
boats would be removed from storage, returned to Mattituck Creek via the 85-ton travelift, and exit through
Mattituck Inlet.It is estimated that approximately 88 boats per season would be stored in the new buildings.
Additionally,the following facility improvements are proposed:the provision of potable water via public water
connection,two I/A OWTS for sanitary waste management(one of which would serve as a replacement system
for the current individual on-site sanitary system that serves the o#Ocm, noadua and other SYC buildings and
one new systeo), formalization of on-site stornommter noauaQenoeut system, landscaping, Ugbbog
inuprovenueots, and additional parking spaces to support the existing and future operations of SYC. Typical
operations would continue during construction.
The repair, maintenance, fueling, washing and detailing of boats would occur in the same noauoor as they
currently d000-sito. Repair and maintenance would occur within the on-site buildings and/or at the existing
dock. All materials used for such services are marine grade and common to the maritime industry. itisnoted
that the proposed action would not alter the maximum amounts of chemicals and antifouling paint stored on-
site and any spills or releases observed either on land or into the water would be required to be reported in
compliance with state hazardous material spill response protocol.The sale of marine fuel would continue under
post-development conditions and any spills or releases observed either on land or into the water would be
required to be reported in compliance with state hazardous material spill response protocol.
The offering of indoor storage for larger vessels post-development is a service that is currently offered to
smaller vessels atSYC. The only exception is that the type of vessels to be stored cannot be brought to SYC via
trailers on roadways (which does occur with smaller vessels for winter storage)but must arrive to and leave
the site via K4atdtucb Creek and the existing boat lift atSYC. The existing 8S-toutrave|i{t used for the existing
operation is sufficient to accommodate the yachts of the proposed action.
Projected Employment Post-Development
Upon implementation of the proposed action,SYC projects that an additional 11 employees would be added to
increase the uuozbnc of employees at SYC to 28. The number of employees on-site would vary seasonally.
Currently,from Monday through Friday,17 full-time employees are on-site.On Saturday's from approximately
March 15 through September 15(season),12 employees are on-site and from September 16 through March 15
(off-season),the number decreases to four.On Sunday's during the season,approximately four employees are
on-site and during the off-season, only one employee is on-site. The anticipated 11 new employees are
anticipated to primarily bm on-site oo weekdays only.
These new employees would be for the boatyard only and include positions for boat maintenance,machinery
operators,engine technicians,administrative,and wood and fiberglass re-fiob6iugpersonnel.
Iu addition to the beuofitupresented above, upon implementation ofthe proposed action, the method of
sanitary disposal would be upgraded from one individual on-site subsurface system to an I/A OWTS,which is
consistent with the Town and Cuunty's intent to reduce nitrogen loading from sanitary waste. Also, a
sturnovvater noaoagon000t system comprised of leaching pools and French drains which includes the use of
pervious gravel vvuu|d be installed to accommodate and recharge stornuvvator runoff from 7.77± acres,
inclusive uf the Project Area as well zs additional surrounding land area. Finally,the proposed extension ofthe
water main for connection to the SCWA would provide the opportunity for surrounding properties with private
water wells tu connect tu public water.
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Increased Assessed Value
Consultations were undertaken with the Southold Assessor for post-development tax revenue. In
correspondence dated June 25, 2021, the Southold Assessor advised that the increase in the Assessed Value
would be approximately$41,000.With no exemptions the increase in the property taxes would be estimated
at $59,450 based on the 2020-21 tax rate. However, the property would be eligible for the 485-b Business
Investment Exemption,which is based on a sliding scale over 10 years. For the first 3 years,there would be a
50 percent reduction for the increased assessment attributable to the two new buildings. For each year after,
the reduction would decrease as follows: Year 4: 40 percent Year 5: 30 percent,Year 6: 20 percent,Years 7
thru 9: 10 percent,and Year 10: 5 percent.
Economic Impact Analysis
As part of the economic impact analysis,the projected gross revenues over the next 4 years,inclusive of 2024
with assumed project completion were inputted into the Marina Economic Impact Calculator (MEIC) to
generate the Annual Revenue Regional Comparison, Summary of Economic Impacts, Economic Impacts by
Major Industry Group, State and Local Tax Impacts,and Federal Tax Impacts. The projected economic output
for 2022,2023 and 2024 were performed. For 2021,the Applicant has advised that 2020 numbers are similar,
and thus,was not performed.As excerpted from the MEIC analysis,the potential direct,indirect,and induced
impacts were included. The direct effects are those take place only in the industry immediately affected (e.g.,
Construction, Manufacturing, Wholesale Trade, Transportation and a portion of Finance & Insurance). The
projected direct impact is 60 jobs.
The indirect effects are related to inter-industry transactions (e.g., if a marina closes it will no longer need
locally produced materials or services.This will affect all of their suppliers,possibly resulting in a further loss
of a few more jobs). Finally,the induced effects measure the effects of the changes in household income. Based
on the MEIC,as of the most current year evaluated (2020),the total local, state and federal tax impact of SYC
was$3,624,706. Upon implementation of the proposed action,the total tax revenue is estimated to increase to
$4,478,039.
SYC's projected revenue from boat sales in 2024 is approximately 82 percent of its total revenue,as compared
to the current 86 percent and nearly 77 percent higher than the regional marinas. However,its revenue from
boat storage is projected to increase to approximately 5.14 percent of its total revenue,which is below that of
the region by approximately 1.6 percent but higher than the current percentage of 3.23 percent. Fuel and
merchandise sales are projected to slightly increase by approximately 0.1 percent and 0.2 percent,respectively.
Boat service is projected to increase by approximately 1.65 percent.
Construction-Related Impacts
The proposed project would be completed in approximately 13 months based upon construction activities
being undertaken for five or six-day work weeks based upon the phase. Phases 1 and 2 are excavation phases
to occur over 5.5 to 6.5 months with trucking for material removal planned for Monday-Friday from 7:00 am
to 5:00 pm. Phase 3 is the construction phase to occur over six months with workdays planned for
Monday-Saturday with various hours between 7:00 am and 7:00 pm pursuant to§180-6 Prevention of Noise-
Standards of the Town Code. A description of each phase follows.
Wildlife Survey
Prior to site preparation, field inspections would occur to identify the presence of the eastern box turtle and
relocation of any observed turtles to on-site areas that would not be disturbed.
xxix
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
Site Preparation
The site preparation phase would occur over approximately two weeks and would include tree removal and
grubbing. During this phase, the following equipment would be staged and used on-site: excavator, 6sllac
buuckmcvroodchippmc tub grinder,and payloadoc All of this equipment would bn assigned au operator and
approximately four laborers are expected.One trailer with driver is expected daily during this phase as well.
During this phase, the proposed crushed concrete haul road would be constructed from the proposed
Construction Excavation Area to West Mill Road,as shown on the Excavation Phasing Plan and Aerial Overlay.
This haul road would be used for the entirety of Phase 1 and would remain as an emergency access road post-
construction. It is noted that the proposed entrance to the temporary haul road was shifted from the original
design to increase the buffer distance to the nearest residential properties. The proposed haul road was shifted
to the south on West Mill Road and is located approximately 145± feet south of the single-family residence
located at41US West Mill Road. Internally, the haul road was shifted to maintain a separation distance of
approximately 259 feet to the single-family residence located at 5106 West Mill Road.
Phases 1 and 2: Excavation
Phase 1 would occur over approximately 5 to 6 months with a commencement date of mid-December 2023.
During Phase 1' approximately 123'000 CY of material would be excavated and cecouvod via the tmonpucacy
haul road. Based on 30 CY trucks, Phase 1 would generate 4,100 total trips.With 40 trucks available per day
for material removal and time limited to 7:00 am to 5:00 pm five days per week(Monday to Friday), Phase 1
could bm completed io5months. Also, during this phase,the following equipment would bn used ou-sitm:two
payloadnrs,two excavators,one fuel truck/water truck,and two bulldozers. All equipment with exception tu
the fuel truck/water truck would remain uu'sitn. Each would hm assigned ao operator and additional staff on-
site would include the construction nzauagnc site safety supervisor, two Oaguzmu' and four laborers. On
Saturday's and after 5:00 pm on weekdays, on-site activity would be vehicle and machinery maintenance and
planning for the following workday ur Monday for a7:O8aoostart
Phase 2 vvuuid be up to 1 nouut6 (2 to 4 weeks) with a commencement date of May 2024. During Phase 2'
approximately 12,000 CY of material would be excavated and removed via the existing access driveway to SYC.
Based on 30 CY trucks,Phase 2 would generate 400 total trips. With 40 trucks available for material removal
and time limited to 7:00 am to 5:00 pm five days per week(Monday to Friday),Phase 2 could be completed in
2 weeks. All of the equipment detailed in Phase 1 above would remain on-site with the same staff. At the
completion of Phase 2,the temporary guard booth would be removed,and the access would be gated to prevent
unauthorized entry.
Phase 3: Construction
Phase 3 would occur over approximately 6 months with a commencement date of May 2024. During Pbaso3'
it is expected that work would be performed 6 days per week(Monday-Saturday)with time limited to 7:00 am
to 7:00 pm in accordance with§180-6 Prevention of Noise-Standards of the Town Code.During Phase 3,the
construction of the retaining wall,two buildings(Total Gross Floor Area [GFA]: 101,500 SF),parking area,and
all infrastructure (drainage,water supply and 2 sanitary systems)would be undertaken. It is anticipated that
Phase 3 would generate a total of 60 truck trips for the construction of the retaining wall and another 101 truck
trips(12 trucks for material delivery and 89 trucks for concrete foundation)for the two boat storage buildings.
A similar guard booth would be situated along the existing internal driveway to direct incoming deliveries and
employees,to inspect exiting vehicles,and to enforce safety protocols.
As indicated in the Construction Details,the retaining wall construction would be approximately three weeks
and would require the following equipment: one pay|oadec one excavator, one skid steer, and one mini
excavator. All equipment would be assigned an operator and four laborers would be on-site. Itis noted that
during construction of the retaining wmU, drainage infrastructure and building foundations would be
performed. Additional equipment to be used on-site for this work include two payloaders,one excavator,one
xxx
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
fuel truck,two skid steers,one mini excavator,one bulldozer,one scissor lift,and one telescopic forklift. Other
than the fuel truck, all equipment would remain on-site. Each would be assigned an operator and additional
staff on-site would include the construction manager,site safety supervisor,and laborers would range from 20
to 60.
It is recognized that the Town of Southold regulates construction-related noise(Chapter 180 of the Town Code)
by limiting the times of construction activities to 7:00 am to 7:00 pm, on weekdays and Saturday.As such,in
accordance with Town Code and indicated above, all construction activities would be limited to Monday to
Saturday from 7:00 am to 7:00 pm. The excavation phases with truck activity would be limited to Monday to
Friday from 7:00 am to 5:00 pm as mitigation offered by the Applicant. On Saturday's and after 5:00 pm on
weekdays, on-site activity would be vehicle and machinery maintenance and planning for the following
workday or Monday for a 7:00 am start. No work would be performed on Federal or State holidays, or on
Sundays. Also, all trucks would be Tier 4 certified by U.S. EPA standards and all gasoline or diesel-powered
machinery would be equipped with adequate mufflers.Additionally,any vehicle that requires the use of a back-
up alarm would use a white noise back-up alarm rather a single tone beep,and all trucks and drivers would be
instructed to disengage all Jake Brake mechanisms once turning on to Cox Neck Road from County Route 48.
The additional mitigation measures have been incorporated into the proposed project to reduce the impact of
noise on the surrounding properties.
To address potential construction-related vibration impacts impact to nearby residents and truck traffic on
local roads, a Vibration Report was prepared by SoundSense. In August 2022, SoundSense documented the
existing vibration conditions at various locations near the project site and vibration data from a representative
truck expected to be used during construction.Analysis of the construction equipment has shown that there is
no predicted impact to any nearby neighbors.Additionally,using the data collected near the project site,there
is no predicted impact to any nearby historic structures from truck traffic. To ensure that vibration is
responsibly managed, a vibration monitoring plan during construction at the project site to protect nearby
historic structures of concern and ensure that ground-borne vibrations are not a disturbance to nearby
neighbors. This plan includes installation of vibration monitoring terminals at four locations and monitored
through all phases of construction.
Overall, while the proposed action would have construction-related impacts, they would be temporary in
duration and would cease upon completion of construction.
Archaeological and Cultural Resources
The evaluation of potential cultural resources (direct and indirect effects) was undertaken by the project
archaeologist, Carol S.Weed, MA (RPA) and in consultation with NYS Office of Parks, Recreation and Historic
Preservation(OPRHP).As part of this evaluation,a Phase IA Archaeology(2021a)report,Reconnaissance-level
Historic Resources Survey,and Phase IB Archaeological Assessment documents (2021b)were prepared.
In correspondence dated July 29, 2021, OPRHP indicated that no historic properties would be affected by the
proposed project. NY State Historic Preservation Office (SHPO) did, however, determine that the platform
water tower and accessory building at 3380 West Mill Road was eligible for listing on the State/National
Registers of Historic Places (S/NRHP). The two structures lie about 100 feet (30 meters) south of the south
end of the proposed stabilized recycled concrete aggregate(RCA)shoulder. The only indirect effect that might
result in an effect to this resource is vibration. However,trucks and other heavy-duty vehicles commonly use
West Mill Road and have done so for many years. Moreover, field observation did not indicate any surficial
damage due to daily truck movements.Based on recommendations from C.Weed,prominent markers such as
orange cones would be placed at the south end of the stabilized RCA shoulder during the construction period
to ensure that the construction truck maintain distance from the resource.
Based on the results of the Phase IB survey,the project archaeologist has indicated that no archaeological sites
will be affected by the proposed action. The Phase IB report was submitted to OPRHP and on November 18,
xxxi
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
2 0 2 1,OPRH P re queste d the geotechnical engineering borings to document evidence of the deposition of dredge
spoils along the southern portion of the Project Area. The requested documentation was pcovidod, and a
request for Phase 113 testing in this area has been requested in correspondence dated December 3, 2021. This
additional work has been performed and in correspondence dated January 24, 2022, OPRHP determined that
based on the supplemental Phase IB archaeological investigation,no archaeological sites were identified,and
uo additional archaeological investigation isneeded.
In correspondence dated April 8,2022,OPRHP requested the preparation of a Construction Protection Plan for
construction-related vibration impacts on the two eligible structures: Matdtucb Creek Tide Mill / Old Mill
Restaurant and the Water Tower and Building. In response,as part of the Vibration Report prepared by Sound
Sense,a Construction Protection Plan has been included. Additionally,io response to comments from the Town
of Southold Planning Board during review of the initial DEIS filed in December 2021, all historic structures
along the entire route were identified and evaluated in the Vibration Report. As indicated in the Vibration
Report,there is no predicted impact to any nearby historic structures from truck traffic. However,to ensure
that vibration is responsibly managed, a vibration monitoring plan during construction atthe project site to
protect nearby historic structures of concern and ensure that ground-borne vibrations are not a disturbance to
nearby neighbors.
Proposed Mitigation Measures
Soils and Topography
* The grading program would result in an excess cut of 134,921 CY of material.All excess soils will be
transported to a coKistocod or permitted facility in accordance with NYSD8C Pact36O for re-useor
local site. As the ultimate location is driven by market conditions and the local need,it is not possible
to identify the specific re-use location or alternative locations at this time.
* To stabilize the slopes within the Project Area and to correct existing y|upo instability due to
unconsolidated materials, a concrete retaining wall of approximately 875 feet in length and varying
height will be installed to the north and west of the proposed boat storage buildings. Portions of the
retaining wall would be vegetated for a visually appealing wall that serves to blend with the landscape.
Upland of the retaining wall, landscaped areas would use erosion control blankets and plantings to
ruiuicoizm erosion to the existing slope of the surrounding area on the K0'11 zoned parcel. The
Gnotmc6oical assessment confirms that the existing soils are favorable for stable open cuts for
placement uf the retaining wall.
* Erosion and sedimentation controls will be undertaken prior to and during construction and would
include, at ooiuioouoo' stockpile prutocduu' inlet sediment control devices for stucno structure
protection,silt fencing,minimizing the extent and duration of exposed areas,and the construction and
maintenance of a stabilized construction entrance to prevent soil and loose debris from being tracked
onto local roads. All erosion and sediment cuutcu| measures will be couduoiy inspected and
maintained such that ou sediment would be transported utf-sito.
~ To minimize fugitive dust emissions,the following measures will be undertaken:watering down access
ways, stockpiles, and material prior to loading; limit on-sitevehicular speeds to S noUos per hour
(mph); soil stockpiles would be covered; all trucks carting loose material and construction debris
would be covered; and a six-foot fence with filter fabric would be installed around the northern and
western portions uf the Construction Excavation Area.
~ Any debris observed during site preparation including demolition de6ds, new fill and excavation
areas,vegetation,topsoil,roots,and other deleterious materials deemed unsuitable,will be removed
from the proposed construction areas, and replaced with controlled fill. Site clearing, grubbing, and
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
stripping will be performed during dry weather conditions to prevent excessive rutting and the mixing
of organic debris with the underlying soils.
• To avoid poorly draining soils on the south side of Boat Storage Building No.2 (Proposed Building 9),
soil mixing would be implemented.
• The haul road layout is orientated along the west edge of the excavation, which maintains the
separation distance between vehicle traffic and the closest residence in order to mitigate potential
vibration impacts associated with soil excavation or construction activities.
Water Resources
• The proposed new and replacement systems with I/A OWTS technology will reduce the effluent
nitrogen concentration on site,in accordance with Article 6 and Article 19 standards of the SCSC.
• The proposed action includes the installation of a stormwater management system that will contain
and recharge stormwater from a two-inch rain event from the Project Area and off-site contributing
areas. The proposed stormwater management controls will include both structural infiltration (on-
site leaching pools)and non-structural methods(pervious gravel)for infiltration.
• The proposed stone blend pavement will reduce the area of impervious surface on the site while also
providing for effective infiltration for stormwater.
• The proposed connection to the public water supply will reduce on-site groundwater withdrawal and
will offer the ability to connect to the public water system to neighboring property owners.
• The proposed Erosion and Sediment Control Plan will include,at minimum,stockpile protection,inlet
sediment control devices for storm structure protection, silt fencing, minimizing the extent and
duration of exposed areas,and the construction and maintenance of a stabilized construction entrance
to prevent soil and loose debris from being tracked onto local roads. Prior to construction,a SWPPP
will be prepared and will address additional items during construction such as concrete washout areas,
temporary stabilization,and erosion and sediment maintenance and inspection procedures.
Flooding and Climate Change
• The placement of buildings at HE 10.0 feet AMSL and other infrastructure at a minimum elevation of
9.0 feet AMSL will mitigate potential flood impacts based upon the adjacent flood zone boundary.
• All project elements have been located landward of the existing floodplain.
Ecological Resources
• Approximately 8.28 acres of Coastal Oak-Beech forests on the subject property (approximately 66
percent of the existing 12.60± acres) will be retained. These remaining Coastal Oak-Beech forests
retain 70 percent of the site's oak(Quercus sp.),American beech(Fagus grandifiolia),red maple (Ater
rubrum),hickory(Carya sp.),and sassafras (Sassafras albidum)trees.
• Overall, the project retains 11.76± acres of forest habitat (comprised of Coastal Oak-Beech and
successional forests),75.4 percent of the site's approximately 2,400 trees,and 70.6 percent of all trees
greater than 12-inches in diameter.
xxxiii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• To mitigate for the loss of forest trees associated with the project, a total of 135 trees would be
replanted, including 86 pitch pine trees (minimum 4-5 feet height) to be planted along the western
and southern edges of the proposed development. In addition,the Applicant will contribute 50 native
trees(10-gallon container typical 1-inch caliper,5-6 feet tall)for installation at high-priority sites with
the Town of Southold, as identified by the Town Tree Committee, to enhance and beautify public
grounds.
• To mitigate for potential noise impacts to birds and wildlife during construction,the use of white noise
back-up alarms rather than single, tone beeps would be used, there would be no Jake Brake
mechanisms on the site,and all trucks would be U.S.EPA Tier 4-compliant.
• The proposed project will shift the eastern edge of the existing forests up to 520-feet to the west.To
mitigate the edge effects and potential habitat degradation in the retained forests on the subject
property and the Town of Southold Mill Road Preserve,the following measures will be undertaken:
• Planting 27,333±SF of native trees,shrubs and groundcover along the new forest edge. This planted
area is approximately 20-to-30 feet in width and will include dense,multi-layered plantings(i.e.,plants
that at maturity will occupy understory,and canopy-levels)with abundant conifer trees(86 pitch pine
trees) to minimize light penetration into the new forest. After establishment of these natural
vegetation areas located landward of the proposed retaining wall,the total forested area on the subject
property will increase from 11.76 acres to 12.39 acres.
• The proposed retaining wall features topsoil-filled planting trays that will planted with native ground-
vegetation, shrubs,and small trees. Native species that will be planted on the retaining wall include
bayberry(Morella pensylvanica),staghorn sumac(Rhus typhina),shadbush(Amelanchier canadensis),
groundsel bush (Baccharis halimifolia), Virginia creeper (Parthenocissus quinquefolia), switch grass
(Panicum virgatum), and common milkweed (Asclepias syriaca). The vegetation established on the
proposed retaining wall will serve to further reduce the intensity of the new forest edge.
• The proposed activities include construction of a stormwater management system that will collect,
treat, and infiltrate stormwater generated from a two-inch rainfall event from the roofs of the
proposed buildings. Stormwater management infrastructure shall include catch and leaching basins
and French drains. Two of the existing metal warehouse buildings will also be connected to the
proposed stormwater management infrastructure, reducing transport of sediments, nutrients, and
pollutants to Mattituck Creek from these existing structures.
• Nutrient reduction measures included in the proposed action include the replacement and up-grade
of the existing conventional sanitary system that services the existing office, marina, and other
buildings with an I/A OWTS,and a new I/A OWTS to service the proposed boat storage buildings. Both
new I/A OWTS shall conform with the Suffolk County Sanitary Code and are designed to reduce total
nitrogen in treated effluent to 19 mg/L and remove an average of 70 percent of influent nitrogen
concentrations.The proposed I/A OWTS upgrades ensure that the proposed action does not contribute
additional nutrient loading to Mattituck Creek (and potential adverse impacts to wetlands) and
represents an improvement compared to nutrient loading under existing site conditions.
• All tree clearing for the proposed action will occur during the winter months (between December 1
and February 28) in accordance with NYSDEC guidance to avoid potential impacts to the New York
State-threatened northern long-eared bat(Myotisseptentrionalis),as the site's forests provide suitable
summer roost habitat for this species.
• To avoid or minimize potential impacts to eastern box turtles, sweeps or surveys for box turtles will
be conducted prior to commencement of clearing,grading,and excavation activities,and any observed
xxxiv
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
turtles will be relocated to areas that will not be disturbed. Silt fencing or other barriers will be
installed around work areas to prevent turtles from returning to construction areas.
Consistency with Community Plans and Studies
• The setback from the edge of disturbance to Mill Road Preserve would be vegetated and is 105 feet to
increase the distance between the most southern trail in the Mill Road Preserve and the proposed
action as well as maintain the existing wooded appearance of the surrounding area.
• The upland landscaped area will create a multi-layer screen for edge protection and visual
enhancement to screen the proposed buildings from surrounding views to the south.
• To mitigate for the loss of forest trees associated with the project, a total of 135 trees would be
replanted, including 86 pitch pine trees (minimum 4-5 feet height) to be planted along the western
and southern edges of the proposed development.In addition,the Applicant will contribute 50 native
trees(10-gallon container typical 1-inch caliper,5-6 feet tall)for installation at high-priority sites with
the Town of Southold, as identified by the Town Tree Committee, to enhance and beautify public
grounds.
• The landscaping proposed for the proposed action(51.4 percent),inclusive of the Evergreen concrete
retaining wall, would exceed the minimum requirement of 20 percent, pursuant to bulk and
dimensional requirements within the M-II zoning district
• The proposed Evergreen concrete retaining wall is designed to become a green wall that will blend
with the landscape to soften views.
• The area surrounding the two proposed storage buildings would be screened by the proposed
Evergreen concrete retaining wall and the existing forested areas to be retained on the subject
property.
• The proposed design provides for greater side and rear yard setbacks than what is required(Required
Side,Both Side,and Rear Yards:25 feet,50 feet combined,and 25 feet,respectively;Proposed:28 feet,
77.7 feet,and 91.3 feet).
Human Health
• The setbacks for the LPG tanks would be compliant with the 2020 NYS Fire Code and the National Fire
Protection Association 59 - Liquified Petroleum Gas Code and would be surrounded by concrete
retaining walls.
• SYC would continue to ensure certified staff implement appropriate handling and storage protocol for
chemicals stored on site consistent with the Article 12 permit and Pesticide Business under Category
5D-Aquatic Antifouling requirements.
• A Fire Safety Plan has been developed by SYC, which provides hazard locations, utility and water
supply information,and emergency procedures for its employees.
Transportation
• Appropriate signage for construction access on West Mill Road will be installed for proper wayfinding.
xxxv
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• An on-site guard booth will be placed along the proposed haul road (for the Phase 1 Excavation) and
on the SYC property(for Phase 2 excavation and construction phases). The purpose of such booth is
to house an on-site staff person who will direct incoming construction-related traffic and to inspect
vehicles upon exiting.
• SYC will mandate that all construction-related trucks be Tier 4 certified by U.S.EPA standards and Jake
Brakes would be turned off.
• Asphalt binder will be installed on the shoulder of Mill Road to prevent damage from tag axles.
• To minimize impacts to the surrounding community,truck trips for excavation will be limited to 7:00
am to 5:00 pm five days per week(Monday to Friday)and truck trips for construction will be limited
to 7:00 am to 7:00 pm six days per week(Monday to Saturday)in accordance with§180-6 Prevention
of Noise-Standards of the Town Code.
• The construction company engaged to complete the work has committed to utilize company multi-
occupant vehicles to transport many of the construction workers to the site.
• The Applicant is committed to correcting any damage that is done by construction activities. A survey
of the pavement condition will be done prior to the commencement of construction and the roadway
will be resurveyed following the completion of the project. The Applicant will commit to quickly
repairing any potholes that appear in the roadway during the construction activity to minimize the
potential for vibrations that could affect existing structures. In coordination with the Town of Southold
Highway Department,the before and after surveys will be reviewed, and if damage did occur due to
the construction,the appropriate measures will be taken to correct it.Additionally, at the request of
the Town, SYC would be willing to sign a corporate guarantee for the repair of any road damages to
pre-development condition.
• Prior to the commencement of project construction,it is recommended that Cox Neck Road/West Mill
Road be restriped with shoulder edge lines defining the edge of 10-foot travel lanes. The edge lines
will better define the road adding safety. The ten-foot travel lanes defined by the edge lines will
provide the motorist with the appearance of narrower roadway while providing and area for
pedestrians. High grass and any brush should be mowed and remove providing a walkable surface
where feasible.
• All trucks associated with the construction of the proposed action will be limited to traveling at 30
mph on Cox Neck Road/West Mill Road and all neighboring roads.The posted speed limit is 35 mph.
• During the construction period,Cox Neck Road/West Mill Road will be monitored daily to detect any
rough surfaces or potholes that develop. The roadway imperfections will be corrected by forces
employed by the applicant.
• Flaggers will be uses for maintenance and protection of traffic at locations where severe curves in the
truck route or at intersections where turns are being made by project trucks that may require crossing
of the yellow double barrier lines.
Aesthetic Resources
• The relocation of the proposed haul road to increase the separation distance to the nearest residential
property at 5106 West Mill Road will minimize the visual impacts of truck activity during construction.
xxxvi
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• To mitigate light trespass and glare,all lighting will be shielded and directed downwards at an intensity
compliant with Chapter 172 of the Town Code (Outdoor Lighting). The proposed lighting will also
comply with the lighting standards set forth in§172-5.
• To mitigate visual impacts from the proposed action to the residence at 5106 West Mill Road, the
existing tree line at the southern property boundary will be maintained as a natural visual buffer to
operations at SYC.
• Supplemental plantings along the retaining wall will create a"sealed edge"of vegetation.
• The edge of disturbance has been moved closer to Building 9 to increase the distance between the
proposed action and Mill Road Preserve.
• The proposed grading program and Evergreen concrete retaining wall require the removal of soils
from the subject property.This results in a design where the proposed buildings are situated at similar
elevations to the existing buildings and are masked and screened from views to the East and along
Mattituck Creek by the existing buildings.
• The proposed Evergreen retaining wall will provide visual mitigation when it is vegetated.It will blend
in with the surrounding woodland and landscape.
Community Character
• The siting of the proposed buildings at elevations similar to the existing buildings preserves the long-
standing maritime views along Mattituck Creek.
• The proposed grading program and Evergreen concrete retaining wall require the removal of soils
from the subject property.This results in a design where the proposed buildings are situated at similar
elevations to the existing buildings and are masked and screened from views to the east and along
Mattituck Creek by the existing buildings.
• The proposed Evergreen retaining wall will blend in with the surrounding woodland and landscape.
Open Space and Recreation
• The excavation phases will limit soil removal to the weekdays so as to not disrupt weekend visits to
the Town Preserve.
• Supplemental plantings proposed at southern property line will buffer the viewshed from residences
to the south of subject property.
Noise
• Construction activities will be limited to Monday to Saturday from 7:00 am to 7:00 pm in accordance
with the Town Noise Code (Chapter 180). No work would be completed on Federal or State holidays,
or on Sundays.
• In accordance with the Town Noise Code (Chapter 180), excavation phases will be limited from
Monday to Friday from 7:00 am to 5:00 pm. No work will be completed on Federal or State holidays,
or on Sundays.
xxxvii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• During construction phases,work on Saturdays and after 5:00 pm Monday to Friday will only include
vehicle and machinery maintenance and planning. No work will be completed on Federal or State
holidays,or on Sundays.
• Any vehicle which requires the use of a back-up alarm will use a white noise back-up alarm instead of
a single tone beep.
• All trucks and drivers will be instructed to disengage all Jake Brake mechanisms once turning on to
Cox Neck Rod from County Route 48.
• All trucks utilized will be Tier 4 certified by U.S.EPA standards.
Air Quality
• To minimize the generation of fugitive dust during construction, particularly during dry periods,the
following mitigation measures will be employed:
■ Minimizing the exposed area of erodible earth.
■ Applying wet suppression to material piles and unpaved areas when there is visible dust.
■ Use of covered haul trucks to move construction material.
■ Use of plastic sheet coverings for material piles.
■ A six-foot fence with filter fabric would be installed around the northern and western portions
of the Construction Excavation Area.
• In accordance with 6 NYCRR Subpart 217-3,heavy-duty vehicles will not remain idling for more than
five minutes at a time.
• The use of all Tier 4 certified trucks and equipment will further reduce emissions of PM and NOx.
• The projected 1.5 million clams harvested annually have the potential to sequester 9,6801bs.of carbon.
As such,this program has the beneficial impact of carbon sequestration.
• The proposed planting of 95 pitch pine trees will store 80,191 lbs. (40± tons) of carbon, decreasing
total carbon storage loss (above&below-ground biomass)from 391 tons to 351 tons.
Social and Economic Impacts
• At the recommendation of the Town Fire Marshal, a Fire Safety Plan has been prepared to provide
hazard locations,utility and water supply information,and emergency procedures for its employees.
Construction-Related Impacts
• Prior to the commencement of site clearing,all existing trees to be retained will be clearly marked with
silt fencing and/or tagging to prevent removal during the site clearing phase.
• Prior to site preparation,field inspections will occur to identify the presence of the eastern box turtle
and relocation of any observed turtles to on-site areas that would not be disturbed.
• Erosion and sedimentation controls will be undertaken prior to and during construction and will
include, at minimum, stockpile protection, inlet sediment control devices for storm structure
protection,silt fencing,minimizing the extent and duration of exposed areas,and the construction and
maintenance of a stabilized construction entrance to prevent soil and loose debris from being tracked
xxxviii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
onto local roads. All erosion and sediment control measures will be routinely inspected and
maintained such that no sediment would be transported off-site.
• All trucks associated with the construction of the proposed action will be limited to traveling at 30
mph on Cox Neck Road/West Mill Road and all neighboring roads.The posted speed limit on West Mill
Road is 35 mph.
• The Applicant is committed to correcting any damage that is done by construction activities. A survey
of the pavement condition will be done prior to the commencement of construction and the roadway
will be resurveyed following the completion of the project. The Applicant will commit to quickly
repairing any potholes that appear in the roadway during the construction activity to minimize the
potential for vibrations that could affect existing structures. In coordination with the Town of Southold
Highway Department,the before and after surveys will be reviewed, and if damage did occur due to
the construction,the appropriate measures will be taken to correct it.Additionally, at the request of
the Town, SYC would be willing to sign a corporate guarantee for the repair of any road damages to
pre-development condition.
• Prior to the commencement of project construction,it is recommended that Cox Neck Road/West Mill
Road be restriped with shoulder edge lines defining the edge of 10-foot travel lanes. The edge lines
will better define the road adding safety. The ten-foot travel lanes defined by the edge lines will
provide the motorist with the appearance of narrower roadway while providing and area for
pedestrians. High grass and any brush should be mowed and remove providing a walkable surface
where feasible.
• Flaggers will be uses for maintenance and protection of traffic at locations where severe curves in the
truck route or at intersections where turns are being made by project trucks that may require crossing
of the yellow double barrier lines.
• In accordance with Chapter 180 of the Town Code,all construction activities will be limited to Monday
to Saturday from 7:00 am to 7:00 pm. The excavation phases with truck activity will be limited to
Monday to Friday from 7:00 am to 5:00 pm. On Saturday's and after 5:00 pm on weekdays, on-site
activity would be vehicle and machinery maintenance and planning for the following workday or
Monday for a 7:00 am start.
• The grading program will result in an excess cut of 134,921 CY of material. All excess soils will be
transported to a registered or permitted facility in accordance with NYSDEC Part 360 or local site for
re-use. As the ultimate location is driven by market conditions and the local need,it is not possible to
identify the specific re-use location or alternative locations at this time.
• Any vehicle that requires the use of a back-up alarm will use a white noise back-up alarm instead of a
single tone beep.
• All trucks and drivers will be instructed to disengage all Jake Brake mechanisms once turning on to
Cox Neck Road from County Route 48.
• All trucks will be required to be Tier 4 certified by U.S.EPA standards.
• The construction manager will inspect all construction vehicles and equipment to ensure proper
maintenance of their emission control equipment and also control the idling of construction vehicles.
Fugitive dust emissions will be mitigated with the use of water during dry periods.
• A sweeper will be employed daily during the excavation phase to remove loose sediment from West
Mill Road.
xxxix
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
* All stockpiles will bocovered.
° All equipment storage/staging will be located within the area of disturbance only on-site,as well as all
contractor and worker parking,to minimize off-site traffic impacts.
° The proposed haul road has been relocated approximately 29 feet to the south to increase the
separation distance to the nearest residence such that the proposed haul road will be approximately
J59 feet from the haul road to the pool at the adjacent residence.
* The proposed haul road entrance on West Mill Road has been relocated approximately 60 feet to the
south to increase the separation distance to the nearest residential property. The proposed separation
distance is14Sfeet.
* Approximately 90 percent of the material to be removed during the excavation phase will be removed
via the haul road, and the remaining 10 percent will be removed from the existing site driveway on
West Mill Road.
* The proposed stockpile and construction staging areas will be setback a minimum distance of 25 feet
from the adjacent residential property.
* A security booth and gate will be positioned at the entry/exit to the haul road for Phase 1 excavation
and on the SYC property for Phase 2 excavation and construction,for the purpose of vehicle inspection
and providing driver instruction.
* Prominent markers such as orange cones will be placed at the south end of the stabilized RCA shoulder
during the construction period to ensure that the construction trucks will maintain distance from the
platform water tower and accessory building at 3380 West Mill Road to minimize vibration impacts to
these structures.
* In accordance with 6 NYCRR Subpart 217-3,heavy-duty vehicles shall not remain idling for more than
five minutes atotime.
* To minimize the generation of fugitive dust during construction, particularly during dry periods,the
following mitigation measures will beemployed:
• Minimizing the exposed area o[erodible earth.
• Applying wet suppression to material piles and unpaved areas when there is visible dust
• Use o[covered haul trucks to move construction material.
• Use o[plastic sheet coverings for material piles.
• A six-foot fence with filter fabric would be installed around the northern and western portions
o[the Construction Excavation Area.
° Asphalt binder will be installed on the shoulder of West Mill Road to prevent damage from tag axles.
° Signage for construction vehicles entering the haul road will be installed on West Mill Road for proper
vvayfinding.
° There will be no weekend construction work between September 15 and October 31 for the Fall
Festival season.
° Vibration monitoring terminals will be installed at four locations and monitored through all phases of
construction. If vibration levels exceed permissible levels (based on the Peak Particle Velocity[PPV]
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
defined in the Vibration Report),the following steps will be taken for Vibration Monitoring at Locations
1-3:
� The acoustic consultant and construction nnauagmozmut team will be notified if an
oxcmmdaocmismeasured.
� The time and location of construction activities when the exceedance is measured will be
provided to the acoustic consultant.
� If the exceedance is an RMS exceedance, the RMS velocity will be verified in the Syscom
DOCK's cloud portal.
� Should the cause of the exceedance be linked to the construction activities,construction will
be halted immediately until appropriate measures, such as operating fovvmc pieces of
equipment or moving construction activities away from the construction area boundary,
can bmcompleted.
� The only exception to halting construction would be if it would be a life safety issue for the
construction workers, or if it would result in an unsafe structure at the time of halting the
construction.In each of these cases.Construction should only be continued until such time
that all workers would be safe and that all structures are stable and would not be in danger
of collapse.
~ The following specific procedures would be followed for the protection of the Water Tower and
Building:
� Arrival and departure times for all trucks to be loaded and leaving with building materials
will be logged by the construction management team. All scheduled traffic must occur
within defined work hours.
� Should an alert be triggered,the time of the alert will be correlated with the arrival times of
all trucks coming to the project site.
� If it is confirmed that oxcoodauco is duo to operation of a truck associated with the
construction,truck operators will be required to reduce speeds near the Water Tower and
Building so that vibration isreduced.All drivers are tnbo notified nf any speed restrictions.
� Should two alerts confirmed to be due to truck vibration occur on the same day,truck trips
will be halted until additional data can be collected and mitigation can be implemented.
Archaeological and Cultural Resources
° Prominent markers, such as orange cones, will be placed at the south end of the stabilized RCA
shoulder during the construction period to ensure that the construction trucks will maintain distance
from the Water Tower and Building at 3380 West Mill Road to minimize vibration impacts.
° Vibration monitoring terminals will be installed at four locations and monitored through all phases of
construction. The locations of the terminals have not been determined; however, one of the four
locations will be installed as close as possible to the foundation of the Water Tower and Building. The
following specific procedures would be followed for the protection of the Water Tower and Building:
�- Arrival and departure times for all trucks to be loaded and leaving with building materials
will be logged bythe construction management team. All scheduled traffic 000si occur
within defined work hours.
� Should an alert be triggered,the time of the alert will be correlated with the arrival times of
all trucks coming to the project site.
� If it is confirmed thatezceedance is due to operation of truck associated with the
construction,truck operators will be required to reduce speeds near the Water Tower and
Building sn that vibration isreduced.All drivers are tobe notified of any speed restrictions.
�~ Should two alerts confirmed to be due to truck vibration occur on the same day,truck trips
will be halted until additional data can be collected and mitigation can be implemented.
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Alternatives and Their Anticipated Impacts
Alternative 1:No-Action Alternative
The No-Action Alternative involves leaving the site as it currently remains,absent the proposed action and the
continuation of the site as a full-service marina with boat sales and maintenance services of SYC. The No-Action
alternative would not result in any changes to traffic patterns,utilities provided(e.g.,water usage),air quality,
ecological resources,water resources,or soils and topography. There would be no changes to the visual quality
of the site, or the character of the community. The projected job generation and increased tax revenue would
not be realized. Overall,the subject property is a privately owned parcel situated within the M-II zoning district
of the Town of Southold and the objective of the Applicant is to develop the property in accordance with the
prevailing zoning regulations. Accordingly, the No-Action Alternative does not achieve the objectives of the
Applicant.
Alternative 2: Alternative Material Removal Plan
This alternative includes an alternative method of material removal to eliminate the use of roadways for truck
transport of materials off-site. As part of this review,SYC undertook consultations with four barging companies
to determine if such method is a feasible alternative for the proposed action. As indicated in the
correspondence from H&L Contracting dated June 24, 2021, each of the four barging companies advised that
the depths of Mattituck Inlet are not adequate for the types of barges required for material removal.
Specifically,the barges need a minimum of 10 feet draft at low tide to avoid hitting the inlet floor bottom and
damaging the barge.As indicated in Section 2.2.1 of this DEIS and illustrated in the Mattituck Inlet soundings
performed for SYC,the average depth of draft at low tide is five (5)-to-seven(7)feet. Additionally,the existing
sharp S turns upon entering the Inlet on the first and second corner bends are very tight and would not allow
the width or depth necessary to safely navigate these areas. Accordingly,the barging of material is not a viable
alternative for the proposed action.
It is also noted that,during preparation of the DEIS and in response to a Planning Board Member meeting held
on-site,the option to install a cement plant on-site to eliminate the need to transport the excavated material
off-site was investigated. Through consultations with LI Precast, it was determined that the total concrete
volume for the proposed project(i.e.,for the cement in the retaining wall,floor slabs and foundations)is limited
to 5,345 CY, of which the total volume of sand in the concrete is limited to 30 percent or 1,604 CY. As the
proposed action includes 135,000±CY of soil removal,there would be limited benefit to having a cement plant
on-site as the limited amount of sand required for the cement plant(1,604 CY)is approximately one percent of
the total material. Overall, based on the above, the processing of sand with an on-site cement plant and the
potential impacts that arise with on-site processing including dust and noise generation,as well as the financial
cost associated with plant operations,has been determined not feasible.
Alternative 3:Constructing the Project on Another Site
This alternative is to consider another parcel for the proposed action; however, this alternative is more
appropriate for actions involving new development rather than a development that is an expansion and
supporting service to a current use that relies upon the infrastructure and staff of the existing business.
Specifically,the SYC operation is a full-service marina, sales, maintenance,and storage facility located on the
subject property,which is a 32.96±-acre parcel partially zoned (i.e., 16.46±acres)and has been developed for
over 60 years for marine use. The construction of the proposed storage buildings on another parcel is not
feasible for the Applicant as the operation to support the storage of yachts(i.e.,existing docks,boat lift,staffing,
maintenance, and service equipment) are located at SYC. Furthermore, the proposed project is designed to
attract large yachts that can only enter and exit by water, and thus, another site equipped with the
infrastructure required is not feasible for this applicant.
xlii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Alternative 4: Constructing the Proposed Buildings Without the Need for Excavation
This Alternative Plan includes the construction of two boat storage buildings of similar area to the proposed
action (i.e., 49,000 SF and 52,500 SF) on the existing M-II zoned portion of the subject property without the
topographic modifications that are required as part of the proposed action. The two proposed buildings would
be placed at the existing average elevations of 36.95± feet AMSL for Building 1 and 37.88± feet AMSL for
Building 2. Building height,as defined in§280-4 of the Town Zoning Code,is"[t]he vertical distance measured
from the average elevation of the existing natural grade adjacent to the building,before any alteration or fill,to
the highest point of the roof for flat and mansard roofs and to the mean height between eaves and ridge for
other type roofs." Accordingly,the maximum building height of 35 feet from average grade elevations allows
for a maximum height of 71.95 feet for Building 1 and 72.88 feet for Building 2.
As the purpose of the proposed action is to accommodate vessels of an average length of 60 feet, but as large
as 86 feet, this alternative design with the buildings at the site's top elevation without excavation cannot
accommodate large vessel storage. Specifically, the large boats cannot be transported via road (either
internally at SYC or public road) because the length and weight of such boats require the vessels to be lifted
directly from the water and hauled via the 85-ton travelift on relatively flat grades. As such, to meet the
intended purpose of the proposed action,this alternative plan would require the new top elevation buildings
to be utilized for smaller boats (300 boats in total), and modifications of the existing Buildings 6, 7 and 8 for
increased roof height such that large vessels could be accommodated in these lower elevation buildings.
Specifically,the height of the doors on the existing indoor storage buildings are approximately 24 feet,and thus,
roof heights would need to be increased by approximately 11 feet to comply with the maximum height
requirement in the M-II zoning district. However,the roof heights on the existing buildings cannot be raised.
Therefore,the existing buildings would be reconstructed with higher roofs to accommodate larger boats.The
lower-elevation buildings would also be modified for radiant heating,which is an important component for the
types of vessels to be stored indoors. The required LPG tanks are illustrated on the Alternate Plan.
Access to the new storage buildings would be internal to the subject property via an access driveway situated
between Buildings 7 and 8. As such,for smaller boats brought to the site via trailers,the existing SYC entrance
would be used. It is expected that approximately 50 percent of the boats(i.e., 150)would arrive by trailer and
the remainder via Mattituck Inlet. The arrival and departure of the smaller boats would occur over a
three-month time period(September to December[arrival] and April-June[departure]).
Similar to the proposed action,this alternative would require slope stabilization measures to correct existing
slope failure behind Buildings 7 and 8,which has occurred due to the erosion of the upland slope and presence
of unconsolidated materials behind the upland slope face that were deposited by the USACOE as part of past
dredging projects. As indicated on the Alternate Plan, a concrete retaining wall would be constructed to the
south and east of the new storage buildings,which would accomplish slope stability for both of these areas. As
the retaining wall would be largely screened by the adjacent building from viewers along Mattituck Creek,the
type of retaining wall that is proposed for the preferred action would not be required. Overall, the grading
program for this Alternate Plan would result in approximately 2,939 CY of cut material for export off-site.
It is noted that the Amended Final Scope required a separate alternate design that included only the
reconfiguration or reconstruction of existing buildings for larger boat storage, which is Alternative 6 below.
However, as described in the respective subsection, Alternative 6 would adversely impact an important
customer base for SYC(i.e.,storage of boats less than 40 feet)should buildings be reconfigured for large vessels
without any expansion (i.e., new buildings). As such, this Alternative 4, includes both construction without
excavation and the reconstruction of the lower buildings because the Applicant does not intend to impact the
recreational boaters who require storage for vessels of 40 feet or less.
Alternative 5:Constructing Smaller Building(s)with Less Excavation
This alternative would include a reduction in the size of the two proposed buildings in order to reduce the
volume of material to be cut and removed from the site. However, the proposed concrete and Evergreen
xliii
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
concrete retaining wall would still be required and the construction cost would not make this an economically
viable plan for the Applicant.
Alternative 6:Reconfiguration or Reconstruction of Existing Buildings On-Site for Larger Boat Storage
This alternative includes the reconfiguration or reconstruction of existing buildings for larger boat storage,
which would impact the storage capacity for smaller boats (less than 40 feet). The intent of this alternative is
to eliminate the proposed excavation of adjacent land;however,this alternative would have a significant impact
to the local boating community with smaller vessels that rely upon SYC for storage (and the accompanying
winterization and pre-launch preparation). Upon implementation of this alternative,SYC would be required to
significantly decrease or eliminate service to smaller vessels. Accordingly, this alternative is not feasible for
the Applicant unless additional buildings can be constructed at the upper elevation for smaller vessels, as
presented in Alternative 4.
Alternative 7:Alternative Material Mitigation Plan
An alternative material mitigation plan has been evaluated to reduce the volume of material to be removed
from the subject property by placing approximately 13,500 cy of material on the R-80-zoned parcel. The
material would be placed within the Successional Shrubland area at a depth of approximately 12 inches and
setback approximately 20 feet from the Successional Southern Hardwoods. The resultant impact on
transportation would be the elimination of 450 trucks from the excavation phase, which would reduce the
excavation phase by 11.25 days or approximately two weeks (as the proposed excavation phase would occur
Monday-Friday only).
Alternative 8:Alternative Routing Plan
This alternative includes the use of Bergen Avenue for outgoing(full)trucks and the use of Cox Neck Lane for
incoming (empty) trucks, during the excavation phase only. Arriving trucks would follow the original Truck
Route plan,making a left turn from east bound Sound Avenue onto north bound Cox Neck Road/West Mill Road.
Departing trucks hauling material from the site would utilize West Mill Road/Cox Neck Road and then turn
west onto Bergen Avenue to Sound Avenue.
Permits and Approvals Required
The proposed action is subject to permits and approvals from the Planning Board (site plan review and
approval),Town of Southold Board of Trustees(Local Waterfront Revitalization Program[LWRP] Consistency
Approval and Wetlands Permit), Suffolk County Department of Health Services (SCDHS) (water supply and
wastewater disposal), and the New York State Department of Environmental Conservation (NYSDEC) (State
Pollution Discharge Elimination System[SPDES]General Permit for Stormwater Discharge during Construction
Activities), Town of Southold Highway Superintendent (review temporary road apron and possible curb cut
permit),and New York State Office of Parks, Recreation,and Historic Preservation (review for archaeological
significance). Suffolk County Water Authority (SCWA) has reviewed the proposed application and the
availability of water has been determined through the extension of the existing water main. On January 31,
2020, NYSDEC issued a Tidal Wetlands Permit (Permit ID 1-4738-01843/0028) and a Non-Jurisdictional
Determination for all work landward of the 10-foot contour.The Suffolk County Planning Commission(SCPC)
has General Municipal Law Section 239-m planning review authority over the proposed action.Utility service
connections are also required from PSEG Long Island.
xliv
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
1.0 DESCRIPTION OF PROPOSED ACTION
1.1 Project Location and Site Conditions
1.1.1 Project Location
Subject Property
The Strong's Yacht Center, LLC. (hereinafter "SYC") is located on a portion of an overall 32.96±-acre
property situated on the west side of Mattituck Creek,south and east of West Mill Road,within the hamlet
of Mattituck,Town of Southold (see Figure 1 in Appendix A) (hereinafter,the "subject property"). The
subject property is identified on the Suffolk County Tax Map as District 1000 -Section 106-Block 6-
Lot(s) 10 and 13.4 (see Figure 2 in Appendix A) and is split-zoned Marine II Industry (M-II) and
Residential Low-Density A(R-80) (see Figure 3 in Appendix A). Approximately 16.46±acres are zoned
M-II and the remaining 16.5±acres are zoned R-80. The SYC operates entirely on the M-II portion of the
subject property.
Mattituck Harbor
As described in the U.S.Army Corps of Engineers (USACOE) "Fact Sheet for Mattituck Harbor published
on March 5, 2021" (hereinafter, the "USACOE Fact Sheet"), Mattituck Harbor is comprised of the
Mattituck Inlet and Creek, which is a 2.25± mile long federal navigational channel extending from the
Long Island Sound to the hamlet of Mattituck. The channel is 100 feet wide at Mattituck Inlet and 80 feet
wide throughout Mattituck Creek. Mattituck Harbor has two jetties,the east which was constructed in
1906 and the west jetty which was constructed in 1938. Mattituck Harbor is identified by the USACOE
as a harbor of refuge during severe storms,which also supports recreational boating,and hosts several
commercial marinas and public boat launch sites that provide public access to the waters of Long Island
Sound.7.
The USACOE has performed maintenance dredging projects in Mattituck Harbor since 1896 when the
first Federal Navigational Program (FNP)was adopted.2 The most recent dredging of Mattituck Harbor
was completed under Section 111 of the Continuing Authorities Program (CAP) in 2014 during which
100,000 cubic yards (CY) of material was dredged and placed on Baillie Beach in Mattituck,
approximately 0.55 mile north of the subject property.
Mattituck Harbor is identified by the Town of Southold as "the only harbor fronting on Long Island
Sound... [serving as] both a recreational and commercial port and is the site of one of the Town's largest
concentrations of marine facilities, second only to Greenport Village" (Local Waterfront Revitalization
Plan, (Section II-J,Reach 1-3 and Reach 1-4).
�httpso//www.nan.usaee.arm il,lMedia/Fact Sheets/Fact-Sheet-Article-View Article/A07A fact-sheet-
mattituck-harb or-nv/.
Zhttpsow .usace.army. it/Portals 74(docs�To ics LISDMMP LIS DMMP-Main-Report-PRDraft-
August2015.pdf.
1
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
1.1.2 Existing Site Conditions
Subject Property
Existing Buildings and Services
As noted above,the subject property is split-zoned for M-II(16.46±acres)and R-80(16.5±acres).SYC
operates entirely on the M-II zoned portion and the R-80-zoned portion of the subject property is
currently undeveloped.The General Layout Plan (see Appendix C)indicates the M-II zoned portion or
SYC operational area is currently comprised of boat slips with associated ramps and fueling and
developed with seven buildings to support the operation of the marina, as well as the sale,
maintenance,dockage,and storage of boats.Information provided by the Applicant indicated there are
currently 45 boat slips at the marina with no more than 40 active at any one time. The additional dock
spaces are kept open for fueling access or drop-off for service access.
The seven buildings located on the subject property are identified on the site development plans as
follows:
o Building 1: one-story residence (1,610 square feet[SF])
o Building 2:two-story office (2,702 SF)
o Building 3:one-story storage (17,320 SF)
o Building 5:one-story storage (341 SF)
o Building 6:one-story storage (10,786 SF)
o Building 7:one-story storage (15,076 SF)
o Building 8:one-story storage (22,425 SF)
It is noted that Building 4,a former 169 SF shed,was demolished in 2018. It is further noted that SYC
maintains a different building numbering system. This DEIS uses the building numbers assigned on
the site development plans.
Building 1 is upland from the marina operations and is a private one-story residence with a garage
where the marina manager resides. Building 2 is the office for the marina operations.Buildings 3,6,7
and 8 are mostly large warehouse-type buildings with large access garage doors. Building 5 is a
shed-style building.There are maintenance vehicles and equipment throughout the marina as well as
dry docked boats.The existing accessways within the marina are asphalt paved or gravel paths.The
boat slips are accessible via metal gangways from the bulkhead on the eastern side of the subject
property.
The existing services provided to customers by SYC include yacht sales,full yacht system maintenance,
repair, and custom fabrication. SYC is an authorized Sunseeker Yachts, Cruisers Yachts and
Volvo service center. These services require that SYC maintain machines, parts, wood, and canvas
shops,as well as diesel and gas fuel sales.At any given time,SYC can service over 200 concurrent work
orders for customers.These work orders can range from battery replacement to preventative engine
maintenance, fiberglass repair, and other maintenance needs. There are currently four (4)
warehouse-type storage buildings and a shed building,Buildings 3 through 8,at the subject property,
as shown on the General Layout Plan (see Appendix C).These buildings support not only the boat and
2
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
yacht maintenance operation but support winter storage for 96 yachts and boats.In addition to indoor
storage,SYC provides outdoor winter storage for 40 boats and yachts.
The boat types serviced at SYC include sailboats, motor yachts, Express Cruisers, center consoles,
sports fishing, commercial fishing,trawlers, as well as government boats for the United States Coast
Guard (USCG), New York State Department of Environmental Conservation (NYSDEC), Mattituck Fire
Department,and others.
SYC also provides 45 in-water dockage slips during the boating season. The marina accommodates
boats and yachts 18-to-133±feet in length with the majority between 40±feet to 60±feet The typical
yacht size is 50-to-80± feet in length. See Table 1 below for the number of boats and yachts at SYC
during the 2020 boating season.
Table 1-2020 Yacht Inventory at SYC
Boat and Yacht Length Number of Boats and Yachts
Up to 29 feet 17 boats
30 feet to 39 feet 33 boats
40 feet to 49 feet 30 boats
50 feet to 59 feet 24 yachts
60 feet to 105 feet 22 yachts
The average yacht size during the 2020 season was 30±feet to 49±feet,which made up 50 percent of
the boats and yachts at SYC. Of the aforementioned boats and yachts,approximately 45 were docked
at SYC and the remaining were stored in the existing storage buildings and dry docked on the marina
property. In addition to servicing private yacht clients, SYC also provides docking slips and services
for six(6) of the 12 commercial fishing boats that are based in Mattituck Inlet.All 12 of these fishing
boats are privately owned. Services available to these boats include ice, electric, pump out, and boat
maintenance.
It is important to note that the current maritime use has existed on-site for over 60 years.3 Prior to the
sale of the marina in 2016 to SYC,the subject property was known as the Mattituck Inlet Marina.
Existing Shellfish Restoration Program
Strong's Marine has had an active relationship with the Cornell Cooperative Extension(CCE)for over
30 years, commencing at its Mattituck Bay location, and in 2017, upon acquisition of SYC property,
became a designated host for the CCE Marine Program for shellfish restoration.As a host, SYC has an
executed Memorandum of Understanding (MOU) (see Appendix M) with the CCE Marine Program to
support CCE's involvement with the Long Island Shellfish Restoration Project (LISRP), inclusive of
housing Floating Upwelling Systems (FLUPSY) in dockside areas that are used by CCE for shellfish
harvesting.SYC has committed to being a FLUPSY host through 2030.In addition to hosting the FLUPSY
units, SYC provides funding to the CCE Marine Program to operate and maintain the units.The intent
of the LISRP is to"...enhance natural stocks of hard clams and eastern oysters throughout the Long Island
3 htttrsofldocs,dos,nygov�pd lwrp(L�/VRP(Southold TEA end entl�Fina1lSoutholdAmend,pdf
3
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
region and establish self-sustaining populations and help improve water quality..." As part of this
program, NYSDEC instructed CCE to "...spawn, grow-out and plant millions of clams and oysters
throughout Long Island..."with FLUPSY's being the most efficient method for the grow-out of seed
clams.4
According to SYC,as a host,the CCE Marine Program has enabled approximately 6 million clams to be
grown at the marina over the last year (and over 10 million in the last four years). A minimum of
approximately 1.5 million clams per year are expected to be harvested from the FLUPSY units at SYC.
Once harvested,the clams are relocated to a NYSDEC-designated sanctuary site pursuant to the LISRP.
Furthermore,each of the eight(8) FLUSPYs currently located at SYC enable 600 gallons of water per
minute to be passed through the millions of juvenile clams housed in these systems(see Appendix M).
As clams are filter feeders, in the harvesting efforts have led to improved water quality as excess
nutrients are removed from the water.5 According to CCE,the Mattituck Inlet has proven to be the best
location for regrowth in the Town of Southold and the FLUPSY site at SYC is integral to shellfish
restoration on Long Island. It is also noted that SYC continues to support CCE in its other initiatives
including its future kelp and eelgrass restoration efforts.
Surrounding Land Uses
SYC operates entirely on the M-II zoned portion, which is immediately adjacent to: the R-80-zoned
portion of the subject property as well as one single family residential lot(5106 West Mill Road)to the
west; Mattituck Creek to the east; residential uses and the Mill Road Preserve to the south; and the
former Mattituck Creek Tide Mill (Old Mill Restaurant) and a single-family residence (formerly the
Frame Water Tower) to the north. Land uses beyond the immediate adjacent parcels and within a
1,000-foot radius of the subject property include maritime, recreational, open space, single-family
residential and agricultural uses(see Figure 4 in Appendix A). A description of the land uses follows.
• North: North of the Old Mill Restaurant is the Mattituck Commercial Dock marina with slips
for commercial boats and the Mattituck Fishing station with approximately 40 recreational
fishing boats. Uses further north are single-family residential, open space, and agricultural.
The single-family residence located at 5102 Mill Road is owned by SYC. Further north,at the
inlet to Mattituck Creek,is the NYSDEC Mattituck Creek Waterway Access Site which provides
boat and kayak launches,boat slips,a fishing pier,picnic tables,and walking trails.6
• South: Beyond the Mill Road Preserve, a 27-acre parcel owned and maintained by the Town
of Southold with a trailhead and parking lot on West Mill Road, are single-family residential
uses.
• East:Across Mattituck Creek to the east are single-family residential uses,many with private
docks,and a maritime (M-II zoned)use parcel with commercial fishing dock and loading pier.
• West:To the west of the subject property along West Mill Road are residential and agricultural
land uses.
4https /lishelifishrestorationfrro"el ctorf
s http�lshellfishaifas.ufLedu environmental-benefits(
6 https://www.dec.nv. ov outdoor(7780.htmi
4
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Review of the Town of Southold zoning map indicates the zoning is generally consistent with the land
uses within 1,000 feet of the subject property(see Figures 3 and 4 in Appendix A).The zoning within
1,000 feet of the subject property includes R-80 and M-II zoned properties to the north, R-80 to the
south,R-80 and M-II to the east and Residential Low-Density(one-acre minimum) (R-40)and R-80 to
the west. Review of the Town of Southold Tax Map Inquiry indicates that the two parcels to the north
of the subject property,zoned M-II similar to the subject property,have a Town land use designation
of industrial. However, the Town land use map indicates the subject property has a Town land use
designation of commercial although the parcels to the north and the subject property are used in a
similar manner (i.e., marinas with commercial and recreational docking). Additionally, the northern
most parcel to the east of the subject property,zoned M-II similar to the subject property,has a Town
land use designation of industrial and is also used in a similar manner as SYC (i.e.,commercial fishing
dock and loading pier operated by the King Family). The other parcels zoned M-II south of the King
Family commercial fishing dock and pier are residentially developed and have a Town land use
designation of medium density residential. The properties zoned R-80 to the west of the subject
property are agricultural uses.
1.2 Project Description
1.2.1 Project Design and Layout
As indicated on the site development plans prepared by the project engineer, Young & Young
Engineering,in Appendix C,the proposed action includes the construction of two,one-story buildings,
at 52,500 SF and 49,000 SF, for the indoor winter storage of yachts. Each building would be
constructed with radiant heating for the purpose of climate-controlled storage. Additionally, the
proposed action includes an extension of the public water main from Naugles Drive for on-site
connection, installation of a new hydrant at the site entrance on West Mill Road, conversion of two
existing on-site wells for irrigation supply only,replacement of an existing individual on-site sanitary
system with an Innovative and Alternative On-Site Wastewater Treatment System (I/A OWTS), and
installation of one additional I/A OWTS.
The overall land area that would be affected by the proposed action is approximately 6.51± acres,
which includes the upland area to be excavated and/or cleared as well as those land areas on the
existing SYC facility where infrastructure improvements would be undertaken (hereinafter, the
"Project Area"). This Project Area is detailed later in this section of the DEIS (see Table 3).
As illustrated on the Alignment Plan (see Appendix C),the proposed two storage buildings would be
placed to the west of the existing Buildings 7 and 8 and are depicted as proposed Building 9 and
Building 10. In order to construct the proposed buildings at an elevation equivalent to the existing
marina buildings and adjacent boat lift,approximately 4.59 acres of material would be excavated and
removed to accommodate the proposed action(the"Construction Excavation Area").
Upon clearing and material removal,the elevations would be reduced from an average of 50 feet above
mean sea level (AMSL) to 10 feet AMSL. The proposed first floor elevation (FFE) of each proposed
building is 10 feet AMSL. This removal of material to reduce the elevation is required in order to
5
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
transport yachts to and from the water via a boat lift or"travelift"as the size and weight of these boat
types cannot be transported via a traditional boat trailer and vehicle.
Approximately 134,921± cubic yards (CY) of material would be removed from the Construction
Excavation Area,which is proposed to occur in two phases. Phase 1 includes approximately 123,000±
CY and Phase 2 is the remaining 12,000±CY. To accommodate the excavation and removal of material
in Phase 1, the proposed action includes the construction of a 1,454±-foot haul road from the
Construction Excavation Area to West Mill Road(Appendix C). The proposed haul road would vary in
width from 16±feet to 30±feet and would be partially situated on an existing unpaved road through
the R-80 portion of the subject property. At the conclusion of construction,the haul road is proposed
to remain in place and would function as a gated emergency access to SYC,if required.Phase 2 would
be accommodated via the existing access driveway off West Mill Road.
The proposed action also includes the construction of an Evergreen Macro Gravity Retaining Wall
System(hereinafter"Evergreen concrete retaining wall"). The proposed Evergreen concrete retaining
wall would be constructed along the west side of Buildings 9 and 10,the north side of Building 10,and
southeast of Building 9, to stabilize the area excavated to accommodate the proposed action and
correct existing stabilization issues to the west of Buildings 7 and 8, that have been caused by
unconsolidated dredge spoils deposited in the past by the USACOE. As indicated in the Engineering
Design Report prepared by Jeffrey T. Butler, P.E., P.C. and included in Appendix H, proposed wall
consists of precast concrete modular units that are fabricated off-site (Bellport, New York) and are
shipped for assembly on-site.The modular units are then placed in pre-determined locations to lock
together and create a wall with a safety factor of greater than 2.0,with 1.5 being the code minimum.
Once in place and backfilled,seeding and use by bird species promote growth in the trays that are built
into the wall to create a"green"wall over a period of two-to-three years.
Based upon a Tree Inventory and Tree Removal Plan completed by Dr.William Bowman of Land Use
Ecological Services,Inc.(LUES) (see Appendix N),the subject property includes 2,408 trees with 1,054
trees(43.72 percent)on the R-80 zoned portion of the subject property and 1,354 trees(56.2 percent)
on the M-II zoned portion of the subject property.Of the 2,408 total trees at the subject property,1,647
trees (38.2 percent) are classified as Coastal Oak-Beech Forest and 12.7 percent of the Project Area's
trees surveyed are classified as large trees with diameters greater than 18 inches.In total,the proposed
action would require the removal of 634 trees (26.3 percent)with 15 trees (0.62 percent)from the R-
80 zoned portion of the subject property and 619 trees (25.7 percent) from the M-II zoned portion of
the subject property.Approximately 73 percent (1,774 trees in total) of the total trees at the subject
property would be retained with 1,039 trees (43.1 percent)retained on the R-80 zoned portion of the
subject property and 735 trees (30.5 percent) retained on the M-II zoned portion of the subject
property.
It is recognized that the number of trees for removal have increased from the previously-projected 493
trees to the current 634 trees. During preparation of the DEIS, the project ecologist performed a
comprehensive tree survey of the entire site and also prepared an updated tree removal plan based on
such survey, and this resulted in a greater number of trees in the Project Area. However, during
preparation of the DEIS, the project design was modified to decrease tree removal on the southern
portion of the Project Area to limit disturbance of Coastal Oak-Beech forests,to supplement plantings
along the west and southern boundaries to seal the forest edge, including the increase in Pitch Pine
trees from 73 to the current 86. Additionally, the proposed planting schedule was modified by the
6
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
project ecologist for native species of shrubs and trees in a multi-layered design that further minimizes
the impact of the newly created forest edge. All of these measures were done to minimize the potential
ecological impacts of the proposed development.Further discussion of the ecological communities and
impact assessment are included in Section 2.4 of this DEIS.
As provided by the project engineer and summarized in the tables below,the existing land cover types
would be modified upon implementation of the proposed action. Table 2 provides a coverage
breakdown for the overall subject property (32.96± acres) and Table 3 evaluates the Project Area
(6.51±acres).
Table 2-Site Data for Subject Property(32.96±acres):Existing and Post-Development Conditions
Land Use/Cover Type Existing Post-Development Change
Roads,Buildings and Pavement 2.62±acres 4.98±acres +2.36 acres
Forested 17.27±acres 11.76±acres -5.51 acres
(Coastal Oak-Beech Forest/ (12.6±acres/4.67±acres) (8.28 acres/3.48
Successional Southern Hardwood) acres)
Meadow/Brushland 10.83±acres 10.29±acres -0.54 acre
(Successional Shrubland)
Non-vegetated(Bare Earth) 0.29±acre 0.00±acre -0.29 acre
Wetlands(tidal) 0.63±acre 0.63±acre 0.00
Landscaping/Planted Areas 0.24±acre 1.91±acres +1.67 acres
Pervious(Gravel and Stone blend 1.08±acres 3.39±acres(a) +2.31 acres
Pavement)
Total 32.96±acres 32.96±acres
Notes: (a)Includes 0.67±acre of the proposed haul road to remain post-development.
As indicated in Table 2 above,upon implementation of the proposed action,the area of forested area
(Coastal Oak-Beech Forest/Successional Southern Hardwood) on the overall subject property would
decrease from 17.27± acres to 11.76±acres (i.e., a decrease of 5.51± acres) and the area of meadow
and brushland (Successional Shrubland) by 0.54± acre (from 10.83± acres to 10.29± acres). The
existing non-vegetated (bare earth) area would also be removed. The proposed development would
increase the area of impervious surface by 2.36± acres (from 2.62±acres to 4.98±acres) and would
also increase the area of landscaping/planted areas by 1.67± acres (from 0.24± acre to 1.91± acres).
Pervious (gravel and stone blend) areas would increase by 2.31± acres (from 1.08± acres to 3.39±
acres).There would be no change to the existing wetland area of 0.63±acre.
Table 3 below provides a summary of the changes in cover types within the Project Area(6.51±acres)
that affects the M-II portion of the subject property for the proposed development and a 0.67±-acre
portion of the R-80 portion for the proposed haul road. As explained earlier,the Project Area includes
the upland area to be excavated and/or cleared as well as those land areas on the existing SYC facility
where infrastructure improvements would be undertaken.
7
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 3-Site Data for Project Area(6.51±acres):Existing and Post-Development Conditions
Land Use/Cover Tye Existing Post-Development Change
Roads,Buildings and Pavement
M-II 0.13±acre 2.49±acres +2.36 acres
Forested(Coastal Oak-Beech Forest
/Successional Southern Hardwood) 5.38±acres 0.00±acre 5.38±acres
M-II 0.13±acre 0.00±acre 0.13±acre
R-80
Meadow/Brushland(Successional 0.0±acre
Shrubland) 0.0±acre 0.00±acre 0.54±acre
M-II 0.54±acre 0.00±acre
R-80
Non-vegetated(Bare Earth)
M-II 0.29±acre 0.00±acre -0.29 acre
Wetlands(tidal)
M-II 0.00±acre 0.00±acre None within Project Area
Landscaping/Planted Areas
0.00±acre 1.67±acres +1.67 acres
Pervious(Gravel and Stone blend)
M-II 0.04±acre 1.68±acres +1.64 acres
R-80 0.00±acre 0.67±acre +0.67 acre
Project Area Total 6.51±acres 6.51±acre
As indicated above, the proposed action would impact approximately 0.67± acre of land in the R-80
zoned portion of the subject property for the proposed haul road inclusive of 0.13± acre of forested
area and 0.54± acre of meadow/brushland (Successional Shrubland) would be removed. The
remaining 5.84±acres of land are within the M-II portion of the subject property. Of this 5.84±acres,
approximately 5.38±acres of forested area and 0.29±acre of bare earth (unvegetated)land would be
removed. The remaining land area includes impervious and pervious (gravel and stone blend) areas
that would be modified within the Project Area for post-development conditions. There are no wetland
areas within the Project Area.
1.2.2 Access and Parking
The existing access to SYC is via West Mill Road(see General Layout Plan in Appendix C)and no changes
are proposed. From the entry point at West Mill Road, a paved and gravel internal driveway which
runs approximately 1,137 linear feet(0.22±mile) from north to south along a large extent of the SYC
facility. From Building 6 to Building 8, the internal driveway is predominately gravel with concrete
pads between buildings.The proposed action includes an extension of the existing internal driveway
to access the proposed Buildings 9 and 10, with pervious stone blend pavement (see Grading and
Drainage Plan in Appendix C).
On-site parking(23 total stalls)is provided throughout the site with two(2)at the residence,eight(8)
paved stalls to the north of Building 2,and 13 paved stalls to the east side of Building 3. As part of the
proposed action,additional surface parking stalls would be created by striping gravel-surfaced areas
that are currently used for parking but not formally marked. As illustrated on the Alignment Plan (see
Appendix C), 34 new parking stalls would be created with 11 stalls located along the east side of
Building 7, four (4) stalls located on the south side of Building 8, and 19 stalls located to the east of
8
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Building 8. Upon implementation of the proposed action,the available parking would be increased
from 23 stalls to 57 stalls.The proposed action would not modify on-site circulation.
As further discussed in Section 1.3.2 of this DEIS,the proposed action would generate 11 additional
jobs,which would increase the total number of employees to 28. Further analysis of the access and
on-site parking is included in Section 3.3 of this DEIS.
1.2.3 Sanitary Wastewater Disposal and Water Supply
Sanitary Wastewater Disposal
Article 6 of the Suffolk County Sanitary Code (SCSC) regulates sewage disposal for the protection of
water resources and sets forth density restrictions based on Groundwater Management Zones. As the
subject property is located within Groundwater Management Zone IV (see Section 2.2.1 of this DEIS
for additional information),Article 6 of the SCSC limits the maximum permitted sanitary discharge to
on-site sewerage systems to 600 gallons per day per acre(gpd/acre).
The subject property is 32.96± acres with 16.46± acres zoned M-II and the remaining 16.5± acres
zoned R-80. Approximately 0.63± acre on the M-II zoned portion of the site contains regulated tidal
wetlands and are, therefore, deducted when determining the total permissible flow. Based on the
overall 32.33±acres,the total permissible flow is 19,398 gpd. However,as the proposed development
considers only the M-II portion of the site,the total permissible flow would be 9,498 gpd based on a
land area of 15.83±acres(i.e., 16.46±acres minus the 0.63±acre of tidal wetlands).
The existing sanitary flow on the subject property is approximately 1,058 gpd,inclusive of Building 1,
the marina manager's residence.All sanitary waste is currently accommodated by two,individual on-
site sewage disposal systems--one for the existing residence and the second for the SYC operation.
As provided by the project engineer and included on the Utility Plan (see Appendix C), the total
projected sanitary waste generation for post-development conditions would increase by 18±gpd from
1,058± gpd to 1,076± gpd (based on the SCDHS design flow factors of 0.06 gpd/sf for Non-Medical
Office Space, 0.04 gpd/SF for General Industrial Use, 0.00 gpd/SF for boat storage, 0.06 gpd/SF for
Non-storage(bathrooms), 10 gpd/boat slip for Marina,and 300 gpd for single-family residential use).
This projected increase is represented in the non-storage/bathroom area of 304 SF.
As part of the proposed action,the existing sanitary system that serves Building 1 would remain,and
two (2) I/A OWTS would be installed (one of which would serve as a replacement system for the
current individual on-site sanitary system that serves the office,marina and other SYC buildings). A
summary of the sanitary calculations and buildings to be served is provided below.
Allowable Sanitary Density Flow: (600 gpd/acre)x(15.83±acres) =9,498±gpd
Design Calculations for Sanitary ystem No. 1 (New System):
General Industrial:4,910 SF x 0.04 gpd/SF(density load)= 196 gpd
Boat Storage: 61,205 SF x 0.00 gpd/SF(density load) =0 gpd
New Boat Storage: 101,196 SF x 0.00 gpd/SF(density load) =0 gpd
9
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Non-storage (bathrooms): 304 SF x 0.06 gpd/SF(density load) = 18 gpd
Total Design Flow for System No. 1: 214±gpd
Design Calculations for Sanitary ystem No.2 (Replacement System):
Office: 2,702 SF x 0.06 gpd/SF(density load) = 162 gpd
Marina:40 boat slips x 10 gpd/boat slip(density load) =400 gpd
Total Design Calculations System No.2: 562±gpd
Existing Single-Family Residence Sanitary System(Building 1) (To Remain
=300 gpd
Total Sanitary Discharge On-Site: 1,076±gpd
It is noted that the projected sanitary flow for the two storage buildings includes only the restroom
area,as these buildings would be dry storage. An application to the SCDHS and Board of Review for
approval of the proposed design flow has been filed (see Appendix J). Additionally, as part of this
action,the Applicant would file a restrictive covenant with the SCDHS to reduce the design flow for the
M-II zoned parcel. Further discussion of sanitary waste and disposal is included in Section 2.2.2 of this
DEIS.
Water Supply
There are currently four(4)private wells on-site,as there is no existing connection to the public water
supply system. As part of the proposed action, a connection to the public water supply is proposed
and two existing on-site supply wells near Buildings 1 and 7 would be converted for use for non-
potable water supply only(i.e.,irrigation) and the on-site supply wells near Buildings 2 and 3 would
be abandoned. Current water demand for potable use is approximately 1,058 gpd. There is no
irrigation system on-site.
Consultations with the Suffolk County Water Authority (SCWA) have been undertaken (see
correspondence dated October 20, 2017 in Appendix K) and public water is available to the subject
property through an extension of the existing water main located 765± feet west of the subject
property on Naugles Drive. Upon implementation of this extension and connection,two of the on-site
wells would no longer be used for potable supply but rather remain for irrigation of proposed
landscaping. The other two on-site wells would be abandoned.
Based upon SCDHS design flow factors set forth in the "Sanitary Wastewater Disposal" subsection
above,the projected volume of potable water for post-development conditions would be 1,076± gpd
plus additional water use for the power washing of boat bottoms in the fall season(approximately 50
gallons per boat7) and boat washing in the spring prior to waxing (approximately 170 gallons per
boat8). These services would be offered to boat storage customers when arriving for storage and when
exiting storage for the boat season. Bottom painting and detailing/waxing does not require any
7 Based on a 3500 PSI/2.5 GPM pressure washer operated for approximately 20 minutes=50±gallons
per boat(source:https://www.protoolreviews.com)
8 Based on 5/8", 100-foot length hose,water usage is 8.5 gpm for approximately 20 minutes(as water
is controlled with spray attachment) or 170±gallons per boat.
10
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
additional water usage. This water supply would also be provided from the new SCWA water
connection.
Additional water for irrigation would be expected from the two remaining on-site supply wells.
Approximately 1.22± acres of the 1.91± acres of landscaping would be irrigated and based on an
assumption of one inch of watering per week for the irrigation season (26 weeks) less precipitation
inputs during the season,approximately 437±gpd during the irrigation season or 218±gpd(averaged
annually) of irrigation supply would be withdrawn from the two remaining wells. As such, water
withdrawal from the on-site wells would reduce from 1,058± gpd to 218± gpd. To reduce water
demand for irrigation, native and/or drought-tolerant species would be planted. Also, the proposed
irrigation system would be equipped with rain sensors to eliminate unnecessary water use.
Upon implementation of the proposed extension, there would be an opportunity for existing
landowners to connect to the public water supply system by application to the SCWA. According to
SCWA, in correspondence dated October 21, 2020 (see Appendix K), 40 properties were identified
within a 500-foot radius of the subject property. Of the 40 properties,two were connected to public
water and seven had public water connection available but were not connected. Further discussion of
potable and irrigation water demands, and the proposed connection to the public water supply, are
included in Section 2.2.2 of this DEIS.
1.2.4 Site Landscaping.Lighting and Fencing
Site Landscaping
The proposed landscaping within the Project Area includes site and retaining wall plantings. As
indicated on the Proposed Landscape Plan (see Appendix C)prepared by Jeffrey T.Butler,P.E.,P.C.,the
landscaping schedule includes four segments:upland(beyond top of the retaining wall),retaining wall
north,retaining wall west,and surrounding site at or above building elevation.
Vegetation proposed in the upland area would include plantings of evergreen trees (Pitch Pine [Pinus
Rigida]), shrubs (Lowbush Blueberry [Vaccinium angustifolium]), and grasses/groundcover
(Switchgrass [Pacincum virgatum])that would be create a multi-layer screen for edge protection and
visual enhancement. Vegetation in the surrounding site area, at or above building elevation, would
include evergreen trees (Pitch Pine [Pinus Rigida]) and shrubs (Lowbush Blueberry [Vaccinium
angustifolium]). The northern and western portions of the retaining wall would include shrubs (i.e.,
Bayberry [Myrica Pensylvanica]) and small trees (Staghorn Sumac [Rhus Typhina] and Shadbush
[Amelanchier canadensis]),and a variety of grasses/groundcover(i.e.,Switchgrass[Panicum virgatum],
Virginia Creeper [Parthenocissus quinquefolia], Common Milkweed [Asciepias syriaca],and Groundsel
Bush [Baccharis halimifolia]).Three sections on the Evergreen concrete retaining wall would be filled
with topsoil to allow for seeding by wildlife. Upon implementation of the proposed action,the area of
landscape would increase by 1.67± acres. The proposed landscaping plan is discussed further in
Section 3.1.2 of this DEIS.
Site Lighting
The proposed site lighting would consist of 14-foot light poles and wall mounted building fixtures. As
indicated on the Details sheet(see Appendix C),the proposed action includes three 14-foot lamp poles
11
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
with LED fixtures(two at the above ground tanks between Buildings 7 and 10 and one south of Building
8 at the retaining wall); 38 wall sconces around the eastern and southern sides of Building 10 and the
northern,eastern,and southern sides of Building 9,and western sides of Buildings 7 and 8;and 13 wail
lights along the northern and western sides of Building 10 and along the western side of Building 9.
To mitigate light trespass and glare, all lighting would be shielded and directed downwards at an
intensity compliant with Chapter 172 of the Town Code (Outdoor Lighting). The proposed lighting
would comply with the lighting standards set forth in§172-5 and would be subject to the review and
approval of the Town of Southold Building Department.
Fencing
Post-development fencing proposed includes a six-foot high black vinyl clad fence at the top of the
Evergreen retaining wall(see Alignment Plan in Appendix C)in accordance with§280-105 of the Town
Code.Existing perimeter fencing located at the northern boundary of SYC would remain in place.
1.2.5 Grading and Drainage
Grading
As indicated on the Excavation Phasing Plan (see Appendix C), the proposed action includes the
construction of the two boat storage buildings at Elevation 10±feet AMSL,in order to allow for direct
access and transport of yachts from the existing boat lift station situated to the east of Buildings 7 and
8. Grading to this elevation is necessary as it allows for the maximum uphill incline for larger boats
that cannot be trailered to be transported via travelift from Mattituck Creek to the proposed boat
storage buildings. At a higher elevation,the travelift would be unable to ascend the incline to move
the boats to the boat storage buildings.
The elevation of the Project Area,as indicated on the Existing Conditions Map(see Appendix C),ranges
from 7±feet to 50±feet AMSL. Based on data provided by the project engineer,the proposed grading
program includes the removal of approximately 135,000± CY of material. As indicated on the
Excavation Phasing Plan (see Appendix C),the Construction Excavation Area is 4.59±acres and would
be completed in two phases. Phase 1 would consist of 3.79± acres and Phase 2 would consist of the
remaining 0.80±acre. During Phase 1,a temporary haul road ranging in width between approximately
16 feet and 30 feet would be constructed. The haul road would extend approximately 1,454±feet to
the northwest across the R-80 portion of the subject property and would connect to West Mill Road
for material removal. The proposed haul road would be constructed on an existing dirt path and
reinforced with soil and crushed concrete. Approximately 123,000±CY of material would be needed
to grade the area of Phase 1 to 9± feet AMSL. Phase 2 includes the grading of 0.80± acre and the
removal of the remaining 12,000± CY of material During Phase 2, all material would be removed via
the extended internal driveway between Buildings 7 and 8 that connects to the existing access route
in the marina and trucked north to the main entrance of the marina.
Following the two phases of clearing and grading, the proposed Evergreen concrete retaining wall
would be constructed. The intent and purpose of the retaining wall is to stabilize the slope to be
disturbed by the proposed action and to correct existing stabilization issues caused by former
deposited dredge spoils by the USACOE.As detailed on the Grading and Drainage Plan,see Appendix
C,the bottom elevation of the proposed Evergreen concrete retaining wall would be 20± feet AMSL
12
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
and ranges in height with top elevations between 40±feet AMSL to 50±feet AMSL.Overall,the height
of the Evergreen concrete retaining wall ranges from 20±feet to 30±feet. It is important to note that
from the bottom elevation of the Evergreen concrete retaining wall,the ground would be graded down
to 9±feet AMSL. The proposed pavement,drainage and sanitary infrastructure,pervious parking areas
and two buildings would all be situated at elevations ranging from approximately 9 feet to 10 feet
AMSL. Further discussion and evaluation of the proposed grading program are included in Sections
2.1.2 and 3.10 of this DEIS.
Drainage
Under existing conditions,there are few existing drainage structures(controls) on the site. There are
a few grates/drainage inlets and in other areas, stormwater infiltrates through existing
landscaped/planted areas or gravel surfaces. On the vegetated uplands, stormwater is recharged
naturally through infiltration.
As indicated on the Grading & Drainage Plan (see Appendix C), the proposed action includes the
installation of on-site leaching pools and French drains which includes the use of pervious gravel as
stormwater management methods to accommodate and recharge stormwater runoff from 7.77±acres,
which includes the Project Area as well as additional surrounding land area. Four(4)tributary areas
are proposed to be constructed within the area of disturbance to capture stormwater runoff from the
proposed buildings and the western side of Building 7 and all of Building 8. Tributary Areas 3 and 4
have also been designed to handle a portion of off-site stormwater due to existing natural grades. The
proposed stormwater management plan is designed to accommodate a two-inch rain event, in
accordance with Town of Southold regulations (Chapter 236 Stormwater Management). Further
discussion and analysis of the proposed stormwater management plan is included in Section 2.2.2 of
this DEIS.
1.2.6 Utilities
The proposed action would increase electrical supply demand from PSEG Long Island. As provided by
Jeffrey T.Butler,P.E.,P.C.,the proposed design is expected to include a 120/208 Volt,3-Phase,4-wire,
2,000-amp service for Buildings 9 and 10 (see Appendix P). Upon preparation of the electrical plans,
further consultations would be undertaken with PSEG Long Island. However, due to the projected
additional electrical load,the project architect anticipates service availability.
The proposed buildings would be heated but not cooled,with the heating source planned as radiant
flooring supplied by liquid propane gas(LPG). Each building would be serviced with two,2,000-gallon
LPG tanks that are proposed to be contained in a concrete vault adjacent to the buildings. Further
discussion and analysis of the proposed utility connections are included in Section 4.1.
1.2.7 Solid Waste Management
All solid waste generated on-site is disposed of in one (1) eight-yard dumpster. The dumpster is
emptied weekly by a licensed private carter.The Applicant indicated that currently,all cardboard,and
plastic generated by on-site operations are recycled through the Town of Southold. Old batteries are
13
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
recycled with a local company.Most engine oil is reused to heat the repair shop.Engine oil not reused
is recycled with a local company.
Upon implementation of the proposed action, solid waste, recyclables, and wastes generated by the
boat maintenance operation would continue to be handled in the same manner as it is today. As the
proposed action would include the storage of approximately 88 new boats for the winter months,there
are no significant increases in solid waste generation expected.
1.3 Project Objective and Benefits
1.3.1 Objective of the Proposed Project
The objective of the proposed project is to provide SYC with the ability to provide indoor, climate-
controlled winter storage for larger vessels. Climate-controlled (heated) space is essential for
maintaining electrical systems in the types of vessels to be stored. Currently, the larger boats that
utilize local waters in the peak season are being transported to warmer climates in the winter months
due to a lack of adequate storage in the Town of Southold and across Long Island. Based upon an
average yacht size of 60 feet in length, it is estimated that approximately 88 yachts could be stored
within the proposed buildings during the winter months; all of which would arrive to the site via
Mattituck Inlet and Mattituck Creek.
Due to the height and length of the expected boats to be stored,the existing buildings at SYC cannot be
used. Specifically, the height of the doors on the existing buildings are approximately 24 feet. The
current yachting market is producing both longer and taller vessels with the height of a typical yacht
at 35± feet. The proposed buildings would be constructed with door and ceiling heights capable of
accommodating such vessels.
Additionally, SYC intends to improve the existing facility with constructing new parking, installing
drainage, connecting to the public water supply, and correcting an area of the site that has been
susceptible to erosion due to dredge spoils placed on-site as part of routine federal maintenance
dredging projects.
1.3.2 Benefits of the Proposed Project
In addition to meeting a market demand for the storage service that SYC intends to provide, the
implementation of the proposed action would realize certain social, economic, and environmental
benefits, including job creation, increased tax revenue, upgrades to sanitary disposal systems, and
providing the opportunity for surrounding properties with private water wells to connect to the public
water supply. Additionally,this location provides waterfront access with suitable draft(i.e., depth of
water), the existing infrastructure required to lift and move boats of the lengths expected, and of
particular importance,the zoning that permits the proposed use. As a Marine-II zoned site,the Town
Board has already determined this location to be suitable for the permitted use. Furthermore, the
proposed action is consistent with the stated goals of the Town of Southold Local Waterfront
Revitalization Program(LWRP)and Southold Town Comprehensive Plan adopted in September 2020
(hereinafter the"2020 Comprehensive Plan").A discussion of the stated benefits follows.
14
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
fob Creation and Increased Tax Revenue
There are approximately 17 full-time staff employed by SYC for maintenance, sales, and marina
operations. Since the application was submitted in 2019, the number of full-time employees has
increased by four from 13 to 17 positions due to the growth in boat sales and required maintenance
and storage needs during the off-season. Upon implementation of the proposed action,an additional
11 full-time positions are expected to be created. The types of jobs to be created include boat
maintenance, machinery operators, engine technicians, wood and fiberglass re-finishing personnel,
and administration. The salary ranges for the new full-time positions could be expected from
approximately$50,000 to$125,000.
In addition to the creation of jobs,the proposed action is also expected to increase tax revenue to the
Town of Southold,Suffolk County,and the State of New York. In 2020,the six Suffolk County locations
owned and operated by Strong's Marine paid over $7.46 million in payroll and over $2.7 million in
taxes (over $2.5 million in sales tax, $201,867 in Real Estate Taxes and over $254,481 in state
withholding taxes). Based on an average cost of$20,000 per boat for service and storage annually,and
an expected 88 yachts to be stored on site,the approximately$1,760,000 would generate an additional
$151,800 annually in sales tax. Additional sales tax would also be generated by the expected increase
in yacht sales by SYC. This projected increase in sales tax from boat sales is$322,575.
Within the Town of Southold, the proposed development is expected to increase property taxes by
$59,450 per year based upon the Southold Assessor (see correspondence dated June 25, 2021 in
Appendix E);however,the property would be eligible for the 485-b Business Investment Exemption,
which is a tax reduction on a sliding scale over 10 years. For the first 3 years, there would be a 50
percent reduction for the increased assessment attributable to the two new buildings. For each year
after, the reduction would decrease as follows: Year 4: 40 percent, Year 5: 30 percent, Year 6: 20
percent,Years 7 thru 9: 10 percent,and Year 10: 5 percent.
The proposed action represents a continued investment of the applicant into the Town of Southold,
which over the last eight years, has included property investments that have contributed nearly
$300,000 into the Town's land preservation trust via the 2 percent real estate transfer tax(pursuant
to Chapter 17-Article IV.Community Preservation Fund).
See Section 3.9 of this DEIS for further discussion of the social and economic impacts of the proposed
action.
Upgrades to Sanitary Systems
The proposed action includes the installation of one new I/A OWTS and the replacement of the existing
on-site sanitary system with an I/A OWTS. The two systems would be designed to serve the SYC
operations,inclusive of all buildings,the office and marina. As a recognized issue in the LWRP(Section
II, Reach 1-27), `Due to the age of much of the residential development with the Reach, the cesspools of
Waterfront lots may be located close to both the creek shoreline and the groundwater table, thus
presenting a potentially significant source of pollution to the surface waters of the creek and the
groundwater feeding into it. These systems, in combination with the stormwater discharge sites, are
thought to be contributors to pollution levels in Mattituck Creek."
15
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Extension of the Public Water Main for Potential Connections by Other Landowners
The proposed action includes an extension of the SCWA water main from Naugles Drive by 765±feet
to allow for the site to be served by the public water supply system. The extension of the public water
main would allow for existing landowners to connect to the public supply system, by request to the
SCWA. Information was obtained from SCWA noting those properties that could connect,if requested,
and is included in Appendix K.
Existing Site is Zoned for Proposed Use and Marine Infrastructure is in Place
The existing zoning that permits the proposed use. As a Marine-II zoned site, the Town Board has
already determined this location to be suitable for the permitted use. Additionally, the subject
property is an existing yacht center with waterfront access and suitable draft(i.e.,depth of water)for
the types of yachts that currently use the facility and expected to be stored on-site post-development.
Furthermore,SYC has the existing infrastructure in place required to lift and move boats of the weight
and lengths expected.
Project is Consistent with the Town's LWRP
The proposed project is consistent with the Town's LWRP as it seeks to enhance the current maritime
use of the property by responding to a demand for indoor climate-controlled storage for larger boats
(yachts). As indicated in the LWRP's Proposed Land Use Map(see Figure 5 in Appendix A),the subject
property is identified for commercial land use. At the time,the LWRP was approved in 2014,SYC was
the"Mattituck Inlet Marina"until its sale and name change in 2016. As stated in the LWRP(Section II-
J,Reach 1-3 and Reach 1-4):
"The water-dependent and water-enhanced uses in Reach 1 are concentrated in
Mattituck Inlet and Creek. Within the Town, this is the only harbor fronting on Long
Island Sound.It is both a recreational and commercial port and is the site of one of the
Town's largest concentrations of marine facilities,second only to Greenport Village.
The Inlet and Creek have regional significance as the only major harbor on Long Island
Sound to the east of the Mt. Sinai/Port Jefferson harbors, a distance of about 40 miles.
This regional importance was identified in the Long Island Sound Coastal Management
Program (DOS, 1999). The Inlet was identified as one of ten Maritime Centers on Long
Island Sound. Maritime Centers provide the most suitable and appropriate
locations for new or expansion of existing water-dependent commercial and
industrial uses."(emphasis added)
The proposed action is consistent with the above.
As further indicated in the LWRP(Section II D-5 and D-6):
"Marinas respond to the strong demand in the region for recreational boating and
services...Marinas help support leisure activities associated with and dependent upon
coastal resources."
16
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Boat storage is a customary accessory use to marinas and while SYC can accommodate smaller boats,
there is a need for storage by larger boat owners. It is also important to note that the types of yachts
that are expected to be stored at SYC upon project completion (i.e., yachts that are approximately
50-to-86-feet) either occupy the slips at SYC or are active in Mattituck Harbor. These are not boat or
yacht types that would be considered new to the existing traffic in Mattituck Harbor.
Of noted importance in the LWRP is for the continuation of the water-dependent uses and the
development pressures. As stated in the LWRP: "There are not many development constraints within
Reach 1,a situation that makes this Reach highly vulnerable to residential development pressures." The
proposed project would continue the existing maritime use.
It is recognized that several residential property owners are opposed to the SYC expansion for various
reasons, including temporary construction impacts and the required excavation to achieve a level
building footprint;however,as a property that has existed in its current form for 60 years and is zoned
for maritime use, the proposed development is responding to an industry demand by recreational
boaters while including appropriate mitigation measures in the construction and design in
consideration of the surrounding residential land uses (see the impact analyses in Section 2.0 of this
DEIS).
Project is Consistent with the 2020 Comprehensive Plan
The Southold Town Comprehensive Plan adopted in September 2020 (2020 Comprehensive Plan)
Land Use Map(see Figure 4 in Appendix A)identifies the entirety of the subject property as commercial
use; however, as noted above, the subject property is split-zoned for M-II (16.46± acres) and R-80
(16.5± acres). SYC operates entirely on the M-II zoned portion and the R-80-zoned portion of the
subject property is currently undeveloped. As evaluated in Section 3.1.2 of this DEIS, the proposed
action complies with and is consistent with the goals and recommendations set forth in various
chapters, including Land Use and Zoning, Transportation and Infrastructure, Community Character,
Natural Resources and Environment,Economic Development and Natural Hazards,
1.4 Construction and Operations
1.4.1 Construction
The proposed project would be completed in approximately 13 months based upon construction
activities being undertaken for five or six-day work weeks based upon the phase. Phases 1 and 2 are
excavation phases to occur over 5.5 to 6.5 months with trucking for material removal planned for
Monday-Friday from 7:00 am to 5:00 pm. Phase 3 is the construction phase to occur over six months
with workdays planned for Monday-Saturday with various hours between 7:00 am and 7:00 pm
pursuant to §180-6 Prevention of Noise - Standards of the Town Code. A description of each phase
follows.
17
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Wildlife Survey
Prior to site preparation,field inspections would occur to identify the presence of the eastern box turtle
and relocation of any observed turtles to on-site areas that would not be disturbed.
Site Preparation
The site preparation phase would occur over approximately two weeks and would include tree
removal and grubbing. During this phase,the following equipment would be staged and used on-site:
excavator, feller buncher, woodchipper, tub grinder, and payloader. All of this equipment would be
assigned an operator and approximately four laborers are expected.One trailer with driver is expected
daily during this phase as well.
During this phase,the proposed crushed concrete haul road would be constructed from the proposed
Construction Excavation Area to West Mill Road,as shown on the Excavation Phasing Plan and Aerial
Overlay in Appendix C. This haul road would be used for the entirety of Phase 1 and would remain as
a potential emergency access road post-construction. The haul road would dead-end at the top of the
slope and could be used to direct water down from the higher elevation onto a structure fire. There
would be no access for vehicles or personnel past that point. According to the project engineer,there
are no slope issues for the haul road.The estimate of RCA required to provide a six-inch horizon for
the haul road and shoulders out on West Mill Road is approximately 700 CY.
It is noted that the proposed entrance to the temporary haul road was shifted from the original design
to increase the buffer distance to the nearest residential properties. The proposed haul road was
shifted to the south on West Mill Road and is located approximately 145±feet south of the single-family
residence located at 4105 West Mill Road. Internally, the haul road was shifted to maintain a
separation distance of approximately 259 feet to the single-family residence located at 5106 West Mill
Road.
Phases 1 and 2:Excavation
Phase 1 would occur over approximately 5 to 6 months with a commencement date of mid-December
2023. During Phase 1,approximately 123,000 CY of material would be excavated and removed via the
temporary haul road. Based on 30 CY trucks,Phase 1 would generate 4,100 total trips. With 40 trucks
available per day for material removal and time limited to 7:00 am to 5:00 pm five days per week
(Monday to Friday), Phase 1 could be completed in 5 months. Also, during this phase,the following
equipment would be used on-site: two payloaders,two excavators, one fuel truck/water truck,and
two bulldozers. All equipment with exception to the fuel truck/water truck would remain on-site.
Each would be assigned an operator and additional staff on-site would include the construction
manager, site safety supervisor,two flagmen, and four laborers. On Saturday's and after 5:00 pm on
weekdays,on-site activity would be vehicle and machinery maintenance and planning for the following
workday or Monday for a 7:00 am start.
Phase 2 would be up to 1 month(2 to 4 weeks)with a commencement date of May 2024. During Phase
2, approximately 12,000 CY of material would be excavated and removed via the existing access
driveway to SYC. Based on 30 CY trucks, Phase 2 would generate 400 total trips. With 40 trucks
available for material removal and time limited to 7:00 am to 5:00 pm five days per week(Monday to
18
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Friday),Phase 2 could be completed in 2 weeks. All of the equipment detailed in Phase 1 above would
remain on-site with the same staff. At the completion of Phase 2,the temporary guard booth would be
removed,and the access would be gated to prevent unauthorized entry.
Phase 3: Construction
Phase 3 would occur over approximately 6 months with a commencement date of May 2024. During
Phase 3,it is expected that work would be performed 6 days per week(Monday-Saturday)with time
limited to 7:00 am to 7:00 pm in accordance with§180-6 Prevention of Noise-Standards of the Town
Code. During Phase 3, the construction of the retaining wall, two buildings (Total Gross Floor Area
[GFA]: 101,500 SF), parking area, and all infrastructure (drainage, water supply and 2 sanitary
systems)would be undertaken. It is anticipated that Phase 3 would generate a total of 60 truck trips
for the construction of the retaining wall and another 101 truck trips (12 trucks for material delivery
and 89 trucks for concrete foundation)for the two boat storage buildings. A similar guard booth would
be situated along the existing internal driveway to direct incoming deliveries and employees,to inspect
exiting vehicles,and to enforce safety protocols.
As indicated in the Construction Details,the retaining wall construction would be approximately three
weeks and would require the following equipment: one payloader, one excavator, one skid steer,and
one mini excavator. All equipment would be assigned an operator and four laborers would be on-site.
It is noted that during construction of the retaining wall, drainage infrastructure and building
foundations would be performed. Additional equipment to be used on-site for this work include two
payloaders, one excavator, one fuel truck, two skid steers, one mini excavator, one bulldozer, one
scissor lift,and one telescopic forklift. Other than the fuel truck,all equipment would remain on-site.
Each would be assigned an operator and additional staff on-site would include the construction
manager,site safety supervisor,and laborers would range from 20 to 60.
It is recognized that the Town of Southold regulates construction-related noise (Chapter 180 of the
Town Code) by limiting the times of construction activities to 7:00 am to 7:00 pm, on weekdays and
Saturday. As such, in accordance with Town Code and indicated above, all construction activities
would be limited to Monday to Saturday from 7:00 am to 7:00 pm. The excavation phases with truck
activity would be limited to Monday to Friday from 7:00 am to 5:00 pm as mitigation offered by the
Applicant. On Saturday's and after 5:00 pm on weekdays, on-site activity would be vehicle and
machinery maintenance and planning for the following workday or Monday for a 7:00 am start. No
work would be performed on Federal or State holidays,or on Sundays.Also,all trucks would be Tier 4
certified by U.S. Environmental Protection Agency (U.S. EPA) standards and all gasoline or diesel-
powered machinery would be equipped with adequate mufflers. Additionally, any vehicle that
requires the use of a back-up alarm would use a white noise back-up alarm rather a single tone beep,
and all trucks and drivers would be instructed to disengage all Jake Brake mechanisms once turning
on to Cox Neck Road from County Route 48. The additional mitigation measures have been
incorporated into the proposed project to reduce the impact of noise on the surrounding properties
Overall,while the proposed action would have construction-related impacts,they would be temporary
in duration and would cease upon completion of construction. Section 3.10 of this DEIS provides
further analysis of the construction-related impacts.
19
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
1.4.2 Operations
Upon implementation of the proposed action,the boat storage buildings would be used to store larger
boats/yachts, up to 86 feet in length, for the winter months. It is anticipated the boat owners would
be existing customers who currently dock at SYC or Strong's Water Club,or new yacht customers from
the surrounding Southold community, as well as other owners on Long Island,Westchester County,
and in the States of Connecticut and New Jersey.
In the fall season,the yachts would be transported to SYC via Mattituck Inlet and be delivered by either
SYC staff or be captained by the yacht owners or licensed boat captain.As explained in the Boat(Vessel)
Study in Appendix M, these types of boats are typically captained (i.e., the owner does not drive the
boat). Once the yachts arrive,they would be lifted from Mattituck Creek at the existing lift station and
moved to the boat storage buildings. In the spring,the yachts would be launched back into Mattituck
Creek. The hours of operation would be the same as existing conditions, i.e., 8:00 am to 4:30 pm
Monday through Friday and by appointment only on Saturday during the same hours. At times, the
maintenance and service operations occur between 7:00 am and 7:00 pm.
As noted in Section 1.1.2,the marina accommodates boats and yachts 18-to-133±feet in length,with
the typical yacht size being 50-to-80±feet in length. The proposed two boat storage buildings would
be able to store a total of 88±yachts based on an average boat size of 60±feet in length and 17±feet
in beam for the winter months only.These boat storage buildings would be able to accommodate boats
50-to-86 feet (maximum) in length. Based on the dimensions of the proposed buildings, SYC
anticipates being able to accommodate the following yacht types in the new boat storage buildings:
Table 4-Typical Yachts to be Stored at SYC Under Proposed Action
Yacht Type Draft Beam Weight Length
66-foot Sunseeker 5 feet 11 inches 17 feet 3 inches 85,000 pounds 68 feet
76-foot Sunseeker 5 feet 7 inches 19 feet 6 inches 118,000 pounds 77 feet
86-foot Sunseeker 6 feet 5 inches 21 feet 3 inches 147,000 pounds 86 feet
Upon implementation of the proposed action,SYC projects that an additional 11 employees would be
added to increase the number of employees at SYC to 28.The number of employees on-site would vary
seasonally.Currently,from Monday through Friday, 17 full-time employees are on-site.On Saturday's
from approximately March 15 through September 15 (season), 12 employees are on-site and from
September 16 through March 15 (off-season),the number decreases to four. On Sunday's during the
season,approximately four employees are on-site and during the off-season,only one employee is on-
site.The anticipated 11 new employees are anticipated to primarily be on-site during weekdays only.
These new employees would be for the boatyard and include positions for boat maintenance,
machinery operators, engine technicians, administrative, and wood and fiberglass re-finishing
personnel.
20
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
1.5 Required Permits and Approvals
The proposed action is subject to the following permits and approvals:
Table 5-Required Permits and Approvals
Agency Permit/Approval Filing Date
Town of Southold Planning Board Site Plan Review and Approval July 17,2018
Town of Southold Board of Trustees LWRP Consistency and Wetlands July 17,2018
Permit
Town of Southold Highway Review temporary road apron, TBD
Superintendent possible curb cut permit required
Suffolk County Department of Water Supply and Sanitary Disposal July 18,2018
Health Services
Suffolk County Planning Referral Following coordinated
Commission review by lead agency
Suffolk County Water Authority Extension of Water Main and New October 20,2017
Connection
NYS Department of Environmental State Pollutant Discharge Elimination Permit Dependent
Conservation System(SPDES) General Permit for
Stormwater Discharge during
Construction Activities
Tidal Wetlands Permit and Non- (NYSDEC Tidal Wetlands
Jurisdictional Determination Permit ID 1-4738-
01843/0028 dated January
31,2020
Pesticide Business Registration February 19,2020
NYS Office of Parks,Recreation,and Review for archaeological TBD
Historic Preservation significance
PSEG Long Island Electric service connection TBD
21
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
2.0 NATURAL ENVIRONMENTAL RESOURCES
2.1 Soils and Topography
2.1.1 Existing Conditions
Soils
The Soil Survey of Suffolk County, New York (Soil Survey) was published by the United States
Department of Agriculture (USDA) Soil Conservation Service in 1975 to assist land users in
determining the potential limitations of soil types.9 Generally, soils that have similar profiles are
grouped into a soil "series"and the series is then broken down into "mapping units' based upon the
slope,texture,and other characteristics.
According to the USDA Natural Resources Conservation Service (NRCS) Web Soil Survey for Suffolk
County, New York (USDA WSS), the subject property is comprised of seven soil types: Carver and
Plymouth sands, 15 to 35 percent slopes (CpE),Fill land dredged material(Fd),Plymouth loamy sand,
3 to 8 percent slopes(PIB),Plymouth loam sandy,8 to 15 percent slopes(PIC),Riverhead sandy loam,
0 to 3 percent slopes(RdA),Riverhead sandy loam,3 to 8 percent slopes (RdB),Tidal Marsh(Tm)and
Water. However,soils within the Project Area are limited to soils mapped as CpE, PIB, PIC, RdA, RdB,
and Tm. An excerpt from the Soil Survey Map with both the Construction Excavation Area and Haul
Road locations depicted is included as Figure 6 in Appendix A. Table 6 below provides the mapped soil
types on the subject property and the location on-site based on the topographic setting described
earlier.so
9 Warner,John W.Jr.,et al.Soil Survey of Suffolk County,New York.United States Department of Agriculture and
Cornell University Agricultural Experiment Station. 1975.
to United States Department of Agriculture. Natural Resources Conservation Service. Web Soil Survey. Retrieved from:
htt s: ebsoilsurvey.sc.egov.usda.gov�.Accessed July 2020.
22
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 6-Soil Types Mapped on Subject Property
Symbol Mapping Unit Slopes Approximate%of Site Landform/Topographic
Setting on SYC Parcel
CpE Carver and Plymouth 15-35% 30.3± Upland and Valley Slopes
sands
RdB Riverhead sandy loam 3-8% 26.5± Upland
PIC Plymouth loamy sand 8-15% 11.8± Upland and Valley Slopes,
Upland margin
Tm Tidal Marsh 11.2± Marina,floodplain edge
RdA Riverhead sandy loam 0-3% 8.9± Upland
PIB Plymouth loamy sand 3-8% 8.4± Upland
W Water 2.1±* None
Fd Fill land,dredged 0 9±* Marina,filled inlet
material
*These soil types are located outside of the area of disturbance for the proposed action.
Source:United States Department of Agriculture.Natural Resources Conservation Service.Web Soil Survey.Retrieved from
hUps:j/ ebsoilsurvey,,sc.egov.usda.gov, .July 2020.
As indicated in Table 6 above,the subject property is comprised of moderate to steeply sloped CpE and
PIC sands and loamy sands and gently sloped to nearly level sandy loams (RdA, RdB,and P113). During
field visits, the subject property was observed to have four distinct topographic settings: Floodplain,
Upland Slope,Valley Slope,and Upland) (see Figure 7 in Appendix A).These topographic settings have
been included in Table 6. As shown in Table 6,and depicted on Figure 6 in Appendix A,the CpE and PIC
soils form the valley slope and encompasses the eastern one-third of the subject property. The central
and western thirds of the subject site are comprised of the P113, RdA,and RdB sandy loams. Though fall
and shrublands now,in the historic period these soils were cultivated on the property. The Tm and Fd
soils are mapped in the southeast quadrant and coincide with fill episodes that are documented between
1962 and 1984(see Section 3.11).
Relevant excerpts from the Soil Survey relating to the soil series and mapping units are presented below:
Carver Series
The Carver series consists of deep, excessively drained, coarse-textured soils. These soils are nearly
level to steep and are throughout the county on rolling moraines and broad outwash plains. Slopes
range from zero to 35 percent. Natural fertility is very low. Permeability is rapid throughout. The
root zone is 30 to 40 inches thick.
Carver and Plymouth sands,15 to 35 percent slopes"E)
CpE are almost exclusively on moraines except for a few steep areas on side slopes along some of
the more deeply cut drainage channels on outwash plains. On morainic landforms these areas
are large, and slopes generally are complex, especially on the Ronkonkoma moraine. On the
outwash plains the areas are in long,narrow strips,parallel to the drainage channels. This unit
23
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
can be made up entirely of Carver sand,entirely of Plymouth sand,or of a combination of the two
soils.The hazard of erosion is moderate to severe on the soils in this unit.These soils are droughty,
and natural fertility is low. Moderately steep to steep slopes are a limitation to use. The soils of
this unit are poorly suited to crops commonlygrown in the county.Areas of these soils have not
been cleared for farming.A few areas in the western part of the county along the north shore are
being used as homesites.
Plymouth Series
The Plymouth series consists of deep,excessively drained,coarse-textured soils that formed in a
mantle of loamy sand orsand over thick layers of stratified coarse sand and gravel. These nearly
level to steep soils are throughout the county on broad,gently sloping to level outwash plains
and on undulating to steep moraines. Plymouth soils have low to very low available moisture
capacity.Natural fertility is low.Permeability is rapid in all of these soils except those of the silty
substratum phase. Permeability is moderate in the silty layer of soils in the silty substratum
phase. The root zone is confined mainly to the upper 25 to 35 inches.
Plymouth loam sandy,3 to 8 percent slopes(PIB)
PIB are on moraines and outwash plains.Slopes are undulating,or they are single along the sides
of intermittent drainageways. The undulating areas are generally large. The areas along
intermittent drainageways are narrow and long, and they follow the course of the drainage
channel. The hazard of erosion is slight on this soil and it tends to be droughty. In the western
part of the county,this soil is mainly used for housing developments.
Plymouth loam sandy,8 to 15 percent slopes(PIC)
PIC are moderately sloping soils on moraines and outwash plains. Where it occurs on moraines,
slopes are rolling in many places, and the surface is broken by closed depressions. On outwash
plains this soil is on the short side slopes along intermittent drainageways.Areas on moraines
are fairly large, but most other areas are small and long and narrow. The hazard of erosion is
moderate to severe because of slope and the sandy texture of this soil.A cropping system that
includes several years of close-growing crops is necessary to provide adequate protection from
erosion.Slope and droughtiness are the main limitations on this soil for most nonfarm uses. This
soil is not well suited to crops commonly grown in the county.Most of this soil is wooded.Small
acreages are cleared and are farmed with adjoining areas of level or gently sloping soils.Such
areas are used mainly forgrowing grasses,but some areas are idle. Where extensive excavating
is not needed,some areas are used for estate-type housing developments.
Riverhead Series
The Riverhead series consists of deep,well-drained, moderately coarse textured soils that formed in
a mantle of sandy loam or fine sandy loam over thick layers of coarse sand and gravel. These soils
occur throughout the county in rolling to steep areas on moraines and in level to gently sloping areas
on outwash plains. These soils range from nearly level to steep,however, they generally are nearly
level to gently sloping.
24
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Riverhead soils have moderate to high available moisture capacity. Internal drainage is good.
Permeability is moderately rapid in surface layer and in the subsoils and very rapid in the substratum.
Natural fertility is low. The root zone is mainly in the upper25 to 35 inches.
Riverhead Sandy Loam,0 to 3 percent slopes(RdA)
RdA soils are generally on outwash plains,and the areas are large and uniform. Where this soil
occurs on outwash plains, it generally has slope characteristics of this landform. Slopes are
undulating in places.A few small,irregular areas are on moraines.The hazard of erosion is slight
on this Riverhead soils.The soil is limited only by moderate doughtiness in the moderately coarse
textured solum. The soil is well suited to all crops commonly grown in the county,and it is used
extensively for that purpose.Most areas in the western part of the county,however,are used for
housing developments and industrial parks.
Riverhead Sandy Loam,3 to 8 percent slopes(RdB)
RdB soils are in narrow bands on outwash plains along the side slopes of deep, intermittent
drainageways. Slopes are short. The hazard of erosion is moderately severe on this soil.
Controlling erosion is the main concern of management and reduces its usefulness for farming
although it is suited to crops commonlygrown in the county. This soil is limited by droughtiness
and by the difficulty of applying irrigation water. The response of crops to applications of lime
and fertilizer is good. Slope limits the use of large farm machines. A few small tracts were
formerly cleared and farmed along with adjoining less sloping soils,but many of these areas are
now in grass or brush because the use of heavy farm equipment on these areas is impracticable.
Many of the larger areas of this soil are used for housing developments where large lots are
needed. These rolling areas are in the western part of the county.
Tidal Marsh(Tmf
Tidal marsh is made up of wet areas that are throughout the county around the borders of calmer
embayments and tidal creeks. These level areas are not inundated by daily tide flow, but they are
subject to flooding during abnormally high moon or storm tides. The areas range from about 2 to
several hundred acres. Tidal marsh has an organic mat on the surface that ranges from a few inches
to several feet in thickness. The organic mat overlies pale-gray or white sand. In many places the
profile for the marsh is made up of alternating layers ofsand and organic material as a result ofsand
deposited on the organic mat during abnormally high storm tides. They are best suited to use as
habitat for certain types of wildlife.
The Soil Survey was utilized for information regarding the potential limitations to the proposed
development for each of the soils.A description of the engineering and planning limitations for these soil
types is included in the table below.As noted in Table 6,above,Water(W)and Fill land,dredged material
(Fd)soils are located outside of the Project Area and are not included in Table 7,below.
25
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 7-Soil Engineering and Planning Limitations
Sewage Streets&
Disposal Parking Lawns&
Symbol Mapping Unit Slopes Homesites* Fields Lots Landscaping
CpE Carver and 15-35% S-slopes S-slopes3 S-slopes S-slopes
Plymouth sands
P113 Plymouth loamy 3-8% SL SL3 M-slopes' S-sandy surface
sand layer
PIC Plymouth loamy 8-15% M-slopes M3-slopes S-slopes2 S-sandy surface
sand layer
RdA Riverhead sandy 0-3% SL SL3 SL SL
loam
RdB Riverhead sandy 3-8% SL SL3 M-slopes' SL
loam
Tm Tidal marsh -- S-high S-high S-high S-high water
water water water
NOTES:
Engineering and Planning Limitation Rating:
SL=Slight-Few or no limitations or limitations can be overcome at little cost.
M=Moderate-Limitation is harder to correct or that it is not possible in some areas to correct entirely.
S = Severe - Severely limited by some soil characteristic that is difficult to overcome or that the costs of
overcoming the limitation are excessive.
Limitations:
[1] Slight for town or county roads.
[2] Moderate for town or county roads.
[3] Possible pollution hazards to lakes,springs,or shallow wells in these rapidly permeable soils.
*The Soil Survey of Suffolk County evaluates the engineering and planning limitations of soils for the
development of homesites. However, as the Soil Survey does not include ratings for other types of buildings,
the homesites evaluation is used to determine potential limitations for the development of the proposed action.
Source: Warner, John W. Jr., et al. Soil Survey of Suffolk County, New York. United States Department of
Agriculture and Cornell University Agricultural Experiment Station. 1975.Pages 50-58.
26
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Soil Borings
McDonald Geoscience performed three soil borings (131, B2, and 133) in September 2018 to identify
underlying soil deposits and to determine the filtration and drainage of the soils within the locations
of the proposed sanitary systems. As indicated on the McDonald Geoscience test hole data sheets and
figures (see Appendix H), Boring 131 was drilled to a depth of 17 feet and is located southeast of the
corner of Building 3 in a sandy area on the upland slope. Boring B2 was drilled to a depth of 13 feet
and is located southwest of Building 7 and northwest of Building 8.Boring B3 was drilled to a depth of
21 feet and is located west of Building 7 on the northernmost valley ridge within the proposed
Construction Excavation Area. Soil was classified based on the Unified Soil Classification System
(USCS).11
A summary of the borings,according to the test hole data sheets,follows:
• Boring B1: The area drilled included two feet of mixed sand and loam, underlain, generally by
pale brown fine sand(SP:poorly graded)and water in pale brown fine sand(SP:poorly graded)
to the extent drilled of 17 feet.Groundwater was encountered at a depth of 7.6 feet below grade
surface (bgs)or Elevation 1.4 feet AMSL.
• Boring 132:The area drilled included six inches of mixed sand and loam,underlain,generally by
pale brown fine sand(SP:poorly graded)and water in pale brown fine sand(SP:poorly graded)
to the extent drilled of 13 feet. Groundwater was encountered at a depth of 6.4 feet bgs or
Elevation 1.2 feet AMSL.
• Boring 133: The area drilled included three inches of brown sandy silt (ML: low plasticity),
underlain,generally by pale brown silt(ML:low plasticity)from 3 to 11 feet,brown clayey sand
(SC:plastic fines)from 11 feet to 13 feet,and pale brown fine sand(SP:poorly graded)from 13
feet to the extent drilled of 21 feet.No groundwater was encountered at this boring location.
The tidal range on September 25, 2018 was accessed from the National Oceanic and Atmospheric
Administration (NOAA) website for historic data at Mattituck Inlet (Station 8512668), to determine
the tide when the borings were completed.12 Based on the published NOAA tidal data for September
25,2018,low tide was at 6:09 am and high tide was at 12:22 PM. As indicated in Appendix H,the soil
borings were taken at 9:00 am.As such,the tide was rising when the borings were taken.
11 The USCS classification system includes a primary and a secondary descriptor,with the following
meanings:
Primary Letters Secondary Letters
G: Gravel W:Well Graded
S:Sand P: Poorly Graded
M: Silt M: Non-Plastic Fines
C: Clay C: Plastic Fines
0: Organic L: Low Plasticity
Pt: Peat H: High Plasticity
1.2h1 /tidesandcurrents,noaa, ov�noaatidepredictions.html?id=8512668&units=standard&bdate
=20180901&elate=20180930&tl ezone=LST/LDT&clock 12hour&datu =MLLW&interval=hilo&a
ction=monthl curt
27
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Geotechnical Assessment
A Geotechnical Engineering Assessment was prepared by P.W.Grosser Consulting Inc.(PWGC)for soil
characterization in the areas of proposed excavation and the permanent retaining wall,and to evaluate
the proposed cut material with an approximate breakdown of the volumes of the various soil deposits.
The Geotechnical Engineering Assessment included 13 soil borings to correspond to the locations of
the proposed retaining wall, cut slope, stormwater conveyance systems, boat storage buildings, haul
road,and two locations that were provisionally identified as archaeologically sensitive in the Phase 1A
Archaeological Assessment(see Appendix T). A copy of the Geotechnical Engineering Memo Report is
included in Appendix H and a summary of the findings follows.
The 13 soil borings were taken continuously from the surface down to 12 feet or 16 feet bgs and at five
(5) foot intervals thereafter. Borings B-1 and B-2 were conducted for archeological characterization.
Borings B-3 through B-13 were conducted in proposed excavation and construction areas. As
described in the Geotechnical Engineering Memo Report (see Appendix H), the subsurface was
revealed to consist of the following Stratums, with a description of the Unified Soil Classification
System(USCS)Soil Classification Guide included in Appendix B of the Geotechnical Engineering Memo
Report:
Stratum 1: Reddish-Brown Fine Sand (SP, SP-SM, SM): A surface layer of fine-grained
reddish-brown sand was encountered below the topsoil. The material consisted of medium-
to-fine grained sand with trace to little amounts of silty sand. The material was loose in terms
of relative density. The sands were classified as SP,SP-SM and SM in accordance with USCS.
Stratum 1 was generally found between 0 to 17 feet bgs,with thicker deposits encountered at
higher elevation borings(B-2,B-12,B-13). This material is considered suitable for foundation
bearing for deposits with low silt composition.
Stratum 2:Tan Medium Sand(SP,SW):The material consisted of tan and light brown,fine-
to-coarse grained sands with trace gravel and trace silt. The material was generally found
between 4 to 55 feet bgs, extending into the groundwater table. The material was loose to
dense in terms of relative density. The tan sands were classified as SP and SW in accordance
with USCS. Boring B-13 found a deposit with high gravel content and was classified as GP.The
material is considered suitable for foundation bearing. This material was present in each
boring.
Stratum 3: Grey Sand with Shells, Possible Dredge Spoils (SP): A layer of coarse-to-
medium grained grey sand was encountered at shallow depths at lower elevation borings (13-
9, B-10, B-11). The material was generally found between elevation 0±feet and elevation 8+
feet NAVD88. The grey sands included trace to little amounts of shells. The material was loose
in terms of relative density. The material was classified as SP in accordance with USCS. This
material is considered unsuitable for foundation bearing based on the loose blow counts.
PWGC believes that this material was deposited onsite as dredge spoils as it was found where
the spoils were suspected of being. Additionally,this material was generally found above the
groundwater table yet contained noticeable amounts of shell.
28
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Stratum 4: Organic Clay(OL,SC): A thin layer of soft grey organic clay to clayey sand was
encountered between at shallow depths at lower elevation borings(B-9,B-10). The material
was generally found between elevation3± feet and elevation 7± feet NAVD88. The clay
included trace amounts of shells. The material was soft or loose in terms of relative density.
The material was classified as OL or SC in accordance with USCS. This material is considered
unsuitable for foundation bearing based on the loose blow counts and high fine-grained
content.
Stratum 5: Dense Sand and Gravel(SP):A layer of very dense,brown sand and gravel with
trace silt was encountered between elevation 43±feet and elevation 36±feet NAVD88 in only
one (1) boring, B-13. The material was very dense in terms of relative density and had a
Standard Penetration Testing(SPT)value of above 66 blows/ft.The material was classified as
SP in accordance with USCS. This material is considered possible fill and will be removed in
the excavation phase when encountered. This material was not encountered in any other
location onsite.
Stratum 6:Uncontrolled Fill:The eastern boundary of the Construction Excavation Area was
observed to have a deposit of uncontrolled sandy fill with debris. The material appeared to
be mostly grey and brown sand with gravel. A tire and other debris were also observed to be
embedded within the deposit. This deposit appears to be limited to a narrow strip along the
top of the upland slope. The area was not accessible by drill rig due to the steep slope and,
therefore,PWGC did not find this Stratum within the soil borings. The thickness is unknown.
Clay was encountered at various depths in the soil borings obtained from McDonald Geoscience and
PWGC.Boring B3 obtained from McDonald Geoscience encountered clay between 11 feet to 13 feet in
the Construction Excavation Area (see soil boring logs and figure in Appendix H). As the proposed
Construction Excavation Area would include material removal to elevation 10±feet AMSL,the limited
clay material encountered would be removed from the site.Borings B-9 and B-10 obtained from PWGC
encountered clay between elevation 3±feet to elevation 7±feet AMSL(see soil boring logs in Appendix
H).As shown on Sheet C-102 in Appendix H, B-9 is located outside any development area and B-10 is
located within a proposed building foundation area. Per the Amended Final Scope, peat formations
were not observed in any of the soil borings completed by either McDonald Geoscience or PWGC.
Groundwater was encountered in Borings B-4, B-5, B-6, B-7, B-8, B-9, B-10, B-11, and B-12, and was
generally encountered between 2.5 feet AMSL and 1.0 feet AMSL.
Using NOAA historic tidal data at Mattituck Inlet (Station 8512668), the closest station reported
fluctuation of about 7 feet.As indicated in Appendix H,the soil borings on April 28, 2021 were taken
between 9:00 am and 3:15 pm.Based on this,the tide was rising when B-01,B-02,and B-03 were taken
and the tide was going out when B-04 was taken. The soil borings on April 29, 2021 were taken
between 8:23 am and 3:12 pm.The tide was rising when B-05 was taken and began to go out as B-06
was taken.The soil borings on April 30,2021 were taken between 8:29 am and 2:46 pm.The tide was
going out when B-07 was taken and was rising when B-08, B-09, B-10,and B-11 were taken.The soil
borings on May 3,2021 were taken between 8:12 am and 2:57 pm.The tide was going out when B-12
was taken and rising when B-13 was taken.
29
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Soil Quality
Enviroscience Consultants, Inc. (Enviroscience) collected four soil samples from the embankment at
the rear of the marina buildings in September 2020(see Appendix H). Soil samples were submitted to
Phoenix Environmental Laboratories, Inc. of Manchester, Connecticut, a New York State Department
of Health(NYSDOH) Environmental Laboratory Approval Program(ELAP) certified laboratory(ELAP
ID 11301).
Two samples were analyzed for:
• Volatile organic compounds(VOCs)by U.S.EPA Method 8260
• Semi-volatile organic compounds(SVOCs)by U.S.EPA Method 8270
• Pesticides by U.S.EPA Method 8081
• Herbicides by U.S.EPA Method 8151
• Poly-chlorinated biphenyls (PCBs)by U.S.EPA Method 8082
• Metals by U.S.EPA Method 6010/7471
Two samples were analyzed for:
• VOCs by U.S.EPA Method 8260
Sample data was compared to the Soil Cleanup Objectives (SCOs) for Unrestricted Use (UUSCOs)
specified in 6 NYCRR Part 375-6,Remedial Program Soil Cleanup Objectives (December 2006).
With the exception of several metals, no compounds analyzed for were detected at concentrations
above the laboratory method detection limit. The metals detected in samples from the site did not
exceed their respective UUSCOs.
Topography
Based upon the United States Geological Survey(USGS)Topographic Map,Mattituck Hills Quadrangle
(see Figure 8 in Appendix A) and the Existing Conditions Map (see Appendix C), the elevation of the
subject property ranges from 6±feet AMSL at the existing bulkhead along the majority of the eastern
property line,to 50± feet AMSL at the junction of the valley slope and uplands. The existing marina
operations and buildings are located between Elevations 6± feet and 8± feet AMSL. The intervening
valley slopes generally trend northwest to southeast in the southeast quadrant of the property and
then generally west to east further north. The slopes are marked by relatively shallow ridges and
swales that generally terminate at the upland slope line. The upland slope face is 8± feet to 20±feet
AMSL in most places and the elevation increase to the 40±feet and 50±feet contours which are marked
by broad terraces near the upland juncture. The upland area ranges from 40±feet AMSL to 50±feet
AMSL and continues west to West Mill Road.
The subject site is marked by a set of two ridges and an intervening swale. The swale is broad and
relatively shallow while the ridges are broadly terraced between the tops of the 50±feet and 30±feet
AMSL contours and then more narrowly terraced between the top of the 30± feet AMSL contour and
the bottom of the 2 0±feet AMSL contour.
30
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As provided by the project engineer and indicated in Table 8 below,the existing slopes for the Project
Area are primarily greater than 10 percent(i.e.,approximately 82 percent of the site).
Table 8-Existing Slopes
Slope Breakdown %of Site
0-10 percent slopes 18%
10-15 percent slopes 39%
Greater than 15 percent slopes 43%
Historic Environmental Context
As indicated in the Phase 1A Archaeological Assessment included in Appendix T, based on aerial
photography, the topography of the eastern third of the subject property has been the subject of
significant alteration episodes occurring between 1962 and 2006. These affected the upland and valley
slopes,and marina location. At least one of the episodes was the result of dredge deposition in a now-
filled inlet. The filling was under the direction of the USACOE as part of their larger program to
maintain the Mattituck Creek inlet and channel. Review of published records indicate maintenance
dredging conducted under USACOE commercial permits was done between 1921 and the 1970s
(Morgan et al. 2005, Batten and Kraus 2006). Some action-specific sand mining by the USACOE,
acquired from dredging, occurred as late as 2014. However,most of these materials were sent to the
inlet mouth to try to control beach erosion(USACOE 2021).
Aerial photographs from 1962 and 1978 show the gradual filling of the inlet in SYC's southeast quarter,
which coincides with an unnamed inlet shown on the 1947 USGS quadrangle (see Phase 1A
Archaeological Assessment included in Appendix T).
The 1962 aerial also clearly shows the breaking of the upland slope line and vegetation clearing on the
valley slope and upland to create space for existing Building 1 west of and upslope of Building 3 and
perhaps most importantly the creation of the land elevation upon which the marina now sits. That
filling episode created space for Buildings 6, 7,and 8 between 1962 and 1978. By 1984,the unnamed
inlet south and west of Building 8 had been mostly filled,with filling ongoing to the east of Building 8.
This filling included the area denoted as Tm soils on the Soil Survey.
The final upland slope break is documented on the 2006 aerial photograph,which illustrates a large
break in the upland slope and near the valley slopes behind Building 8. This"scar"appears to gradually
fill south to north so that by 2020, the area of existing slope instability lies to the west of the gap
between Buildings 7 and 8. Based on observations made during the walkover of the eastern edge of
the proposed Construction Excavation Area on March 25,2021 by project archaeologist,Carol S.Weed,
MA(RPA),dredge spoil appears to have been emplaced atop the east side of the valley slope,effectively
creating the top of the broken upland slope line.As noted in the Phase 1A Archaeological Assessment,
the origin of the spoil is unknown but historic documents indicate that dredge spoil was deposited on-
site and particularly on the west side of Mattituck Creek by the USACOE as part of the maintenance
dredging program noted above (Morgan et al. 2005, Friends 1986). The Geotechnical Assessment
detailed above also confirms such deposits.
31
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
2.1.2 Potential Impacts
Soils
The proposed action would result in the disturbance of soils for removal of material for regrading,
building foundations,drainage and sanitary waste infrastructure,utility installation,pervious parking
areas, and landscaping. Based upon the preliminary site plan and site data provided by the project
engineer,the total land area to be disturbed is approximately 6.51 acres.The disturbance of soils for
construction and regrading activities increases the potential for erosion and sedimentation. As
indicated in the NYSDEC's New York State Standards and Specifications for Erosion and Sediment
Control, Blue Book (July 2016), the erosion potential of a site is determined by five factors: soil
erodibility,vegetative cover,topography,climate,and season.
Soil erodibility is dependent on the structure, texture, and percentage of organic matter in the soil.
Vegetative cover protects soils from the erosive forces of precipitation and runoff or overland flow,as
top growth vegetation shields the soil surface from precipitation while the root mass holds soil
particles in place. Also,grasses limit the speed of runoff and help to maintain the infiltration capacity
of the soil. The establishment and maintenance of vegetation are identified as the most important
factors in minimizing erosion during development. Topography, including both slope length and
steepness,influences the volume and velocity of surface runoff. Long slopes carry more runoff to the
base of the slope, and steep slopes increase runoff velocity. The climate also affects erosion based
upon the volume of runoff. Rainfall frequency, intensity and duration have direct influences on the
ability for stormwater to infiltrate soils. Finally,seasonal variations in temperature and rainfall affect
the erosion potential of soils.
As indicated in Section 2.1.1,the Soil Survey provides engineering and planning limitations for all soil
types. Based on the mapped soil types present within the Project Area,there are moderate-to-severe
engineering limitations associated with select soils for the development of streets or parking lots due
to slopes(PIB and RdB soils are noted as moderate and PIC soils are noted as severe). This limitation
would be overcome with the proposed excavation and regrading of the Project Area. As presented and
evaluated later in this subsection, the slopes within the Project Area would be modified to regrade
select areas with slopes of 15 percent or greater,reducing the area of steep slopes within the Project
Area from 51 percent to 1 percent. The area of slopes between 10 and 15 percent would decrease from
12 percent to 1 percent. The area of slopes less than 10 percent would increase from within the Project
Area from 37 percent to 98 percent. Regarding the proposed haul road, its placement and route
considers existing cleared areas and existing topography such that there would be no limitations.
The proposed Evergreen concrete retaining wall would be constructed within an area mapped as CpE
and PIC soils. It is also noted that the Geotechnical Engineering Assessment performed by PWGC
evaluated the existing soils for slope stability. As discussed later in this subsection and included in the
Geotechnical Engineering Memo Report in Appendix H,slopes have been determined to be stable with
no impact to nearby properties. The Engineering Design Report and Documentation in Appendix H
reviewed the soil borings completed by PWGC to assure design compatibility with the native soils,
properties, and groundwater elevation. It was concluded that the design principles utilized for this
32
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
gravity wall system are consistent with the requirements for the proposed Evergreen concrete
retaining wall.
As indicated in Section 2.1.1 of this DEIS, clay was encountered in Boring B3 within the Construction
Excavation Area; however, this material would be removed as part of the proposed regrading
program. Clay was also generally encountered in PWGC Borings B-9 and B-10 at elevation 3±feet to
elevation 7±feet AMSL. It is noted that B-9 is located outside any development area and B-10 is located
within a proposed building foundation area. As such, there would no engineering or planning
limitations associated with on-site clay material.
The Soil Survey also indicates moderate to severe limitations for sanitary disposal systems due to
slopes and soils that have rapid permeability(PIC are noted as moderate and CpE soils are noted as
severe). It is noted that the existing sanitary system(and the entirety of the existing SYC development)
is mapped as CpE,and thus,prior construction has created a relatively flat area and modification of the
soil profile. The proposed new sanitary system would be situated in the PIC soils. As indicated in
Section 2.1.1 of this DEIS,soil borings have been performed by McDonald Geoscience for both sanitary
systems (131 and 132). There were no limitations identified. Additionally,as part of the Geotechnical
Assessment performed by PWGC,the drainage ability of on-site soils has been evaluated. Overall,the
drainage characteristics have been determined to be good,with a limited area of soil near the proposed
Building 9 having a high concentration of fines. Soil mixing would be performed. It is noted that there
are no sanitary disposal systems to be located in this area.
In the area of the proposed boat storage buildings,soils are mapped as PIC and CpE which are noted
as having limitations of moderate and severe, respectively, due to slopes. The proposed regrading
program would eliminate this limitation. It is also noted that after excavation and prior to
construction, additional borings would be performed as the initial geotechnical investigation
determined loose soil deposits within the southern footprint of Building 9 may require improvement
for foundation bearing.
Regarding the proposed landscaping, all landscape would be placed in soils mapped as CpE and PIC
soils. These soils are noted as having severe limitations for landscaping due to slopes (CpE) and a
sandy surface layer (PIC). These limitations would be overcome as areas would be regraded and
topsoil would be introduced to establish plantings.
Overall, based on the above, there are no engineering limitations that would impact the proposed
development or result in significant adverse impacts associated with the development of the Project
Area.
Proposed Grading Program
The proposed action includes the removal of approximately 135,000± CY of earthen material. The
removal would occur in two phases,which are delineated on the Excavation Phasing Plan in Appendix
C. Phase 1 would include the cut and removal of 123,000± CY to bring the elevation down to 10 feet
AMSL. The maximum depth of cut in Phase 1 would be 40 feet. Phase 2 would include the cut and
removal of 12,000±CY of earthen material to bring the elevation down to 10 feet AMSL. The maximum
depth of cut in Phase 2 would also be 40 feet.During the construction phase (Phase 3),there would be
no removal of cut material for building foundations, or drainage and sanitary infrastructure. The
33
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
maximum depth of cut would be 5 feet for the proposed drainage leaching pools. No fill material is
proposed.
Projected Construction Trucks and Proposed Route
As part of the site preparation phase, a crushed concrete haul road would be constructed from the
proposed Construction Excavation Area to West Mill Road, as shown on the Excavation Phasing Plan
and Haul Road Plan in Appendix C. This haul road would be used for the entirety of Phase 1 and would
remain as an emergency access road post-construction.
Phase 1 would occur over approximately 5 to 6 months with a commencement date of mid-December
2023. During Phase 1,the haul road would be constructed and approximately 123,000 CY of material
would be excavated and removed. Based on 30 CY trucks, Phase 1 would generate 4,100 total trips.
With 40 trucks available per day for material removal and time limited to 7:00 am to 5:00 pm five days
per week(Monday to Friday),Phase 1 could be completed in 5 months.
As indicated on the Truck Route Map in the Traffic Impact Study(TIS)in Appendix 0,trucks would exit
the haul road, turn left on to West Mill Road, which becomes Cox Neck Road, and at the signalized
intersection with Sound Avenue,trucks would proceed west.
Phase 2 would be approximately 1 month (2 to 4 weeks) with a commencement date of May 2024.
During Phase 2,approximately 12,000 CY of material would be excavated and removed via the existing
access driveway to SYC. Based on 30 CY trucks,Phase 2 would generate 400 total trips. With 40 trucks
available for material removal and time limited to 7:00 am to 5:00 pm five days per week(Monday to
Friday), Phase 2 could be completed in 2 weeks. As indicated on the Truck Route Map in the TIS in
Appendix 0, trucks would exit the access driveway on to West Mill Road, which becomes Cox Neck
Road,and at the signalized intersection with Sound Avenue,trucks would proceed west.
It is noted that the material from the subject property would likely be transported to a registered or
permitted NYSDEC Part 360 facility, likely located within 15 miles of the project location, for
processing and re-use. Upon excavation and loading on to trucks,the material in its raw form would
be transported to a facility for stockpiling and processing,and eventually sold as a finished product to
the ultimate end user. Such uses could be beach replenishment,aggregate for roadway construction,
pre-cast concrete products, etc. Material may also be transported directly to a local site for re-use.
Given that this project is still in the environmental review process,and the ultimate re-use facility or
location is driven by market conditions and the local need,it is not possible to identify the specific re-
use location or alternative locations. However,the transportation costs of these types of aggregates
often drive their use,and it often becomes financially restrictive to transport these types of materials
greater than 50 miles.
Geotechnical Engineering Assessment
A Geotechnical Engineering Assessment and associated Memo Report was prepared by PWGC for soil
characterization in the areas of proposed excavation and the permanent retaining wall,and to evaluate
the proposed cut material with an approximate breakdown of the volumes of the various soil deposits.
As part of the assessment,PWGC performed borings to investigate the soils that make up the planned
excavation cut,and evaluated the on-site soils for structural design, drainage, site preparation, slope
34
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
stability,and vibrations during construction. A copy of the Geotechnical Engineering Memo Report is
included in Appendix H and a summary follows.
Structural Design
The Geotechnical Engineering Memo Report summarizes the soil design parameter recommendations
for the generalized soil layers described in Section 2.1.1 of this DEIS. As excerpted from the
Geotechnical Engineering Memo Report, based on the soil conditions encountered during the field
investigation, the conventional shallow foundations (spread/strip footings) for the proposed boat
storage buildings are feasible. However,additional borings would be conducted after the excavation
phase. Regarding the retaining wall, it has been determined that the soil design parameters are
suitable based on the characterization of Stratums 1,2 and 5.
Site Preparation
The Geotechnical Engineering Memo Report recommended specific practices during site preparation.
As a result of recommendations made by PWGC,any debris observed during site preparation including
demolition debris, new fill and excavation areas, vegetation, topsoil, roots, and other deleterious
materials deemed unsuitable,would be removed from the proposed construction areas,and replaced
with controlled fill. Site clearing, grubbing, and stripping would be performed during dry weather
conditions to prevent excessive rutting and the mixing of organic debris with the underlying soils. This
clearing,grubbing,and stripping would occur during the site preparation phase of construction,which
is approximately two weeks. If, during this period, excessive rain or wet weather occurs, the work
would be delayed. However, the overall construction schedule provided in this DEIS includes over-
estimates should delay occur.
Drainage
The Geotechnical Engineering Memo Report evaluated the soil conditions for drainage. As indicated
in said Report,the soils of Stratum 1 and 3 are considered to have fair to good drainage characteristics.
Stratum 2 appears to be excellent in terms of drainage characteristics. The soils of Stratum 4,
encountered in Borings B-9 and B-10,have high concentrations of fines,and would have poor drainage
characteristics. As such,mitigation measures to avoid poorly draining soils on the south side of Boat
Storage Building No. 2 (Proposed Building 9) would include soil mixing. As discussed below, the
subject site contains excellent quality, clean sand for use in soil mixing. As indicated above, clay was
encountered at various depths in the McDonald Geoscience Boring B3 (clay encountered clay between
11 feet to 13 feet; boring located west of Building 7 on the northernmost valley ridge within the
proposed Construction Excavation Area)and PWGC Borings B-9 and B-10(claywas encountered at 3±
feet to 7±feet AMSL);however,B-9 is located outside any development area and B-10 is located within
a proposed building foundation area,which would be regraded to Elevation 10 feet AMSL. The limited
clay material encountered in drainage areas would be removed from the site.
Quality and Quantity of Proposed Cut Soils
PWGC performed borings to investigate the soils that make up the planned excavation cut The table
below shows the samples that were sent to the laboratory for sieve analysis and which Stratum they
were representative of. Sieve analysis results are attached to the Geotechnical Engineering Memo
Report in Appendix H.
35
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 9-Sieve Analysis Sample Results
Stratum Sample Selected(Boring,Depth Interval)
Stratum 1: Reddish-Brown Fine Sand Boring B-3,4'-6'
Stratum 2:Tan Medium Sand Boring B-6, 10'-12'
Stratum 3: Grey Sand w/Shells,Dredge Spoils Boring B-10,6'-8'
Stratum 4: Organic Clay none
Stratum 5: Dense Sand and Gravel(SP) Boring B-13,8'-10'
Stratum 6:Uncontrolled Fill w/Debris none
PWGC evaluated the collected soil samples in terms of the soil quality for potential disposal locations
and conclude the following:
(1) The clean sands of Stratum 2 would likely have value as a sand material.
(2) The sands of Stratums 1 and 5 would be too finely graded, have high silt content and, for
Stratum 5,too high in gravel content.
(3) Stratums 3 and 4 are mostly located at elevations and locations outside the soil cut.
(4) Stratum 6 is uncontrolled fill with debris that is of poor quality.
The soil cut volume was estimated by the project engineer, Young & Young Engineering, to be
approximately 123,000 CY for Phase 1 and 12,000 CY for Phase 2. PWGC performed calculations that
break down the overall volume into the distinct Stratums that were encountered during field
exploration. The calculations are based on the delineated area of the excavation, soil classifications
from the field investigation and professional judgement on stratigraphy between the boring locations.
As indicated in the table below, of the proposed 135,000 CY of cut, approximately 63 percent of the
material has been classified as quality sand. The remaining 37 percent of the material has been
classified as poor to fair.
36
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 10-Soil Type Breakdown of Cut Volume
Stratum Phase 1 Quantity Phase 2 Quantity Total Approx. Quality as Sand
Quantity
Stratum 1: 39,240 CY 4,611 CY 43,851 CY Fair to Poor
Reddish-Brown Fine Sand
Stratum 2: 78,985 CY 5,867 CY 84,852 CY Excellent
Tan Medium Sand
Stratum 3: 0 0 0 Fair
Grey Sand w/Shells,Dredge
Spoils
Stratum 4: 0 0 0 Poor
Organic Clay
Stratum 5: 2,675 CY 1,522 CY 4,197 CY Fair
Dense Sand and Gravel(SP)
Stratum 6: 2,100 CY 0 2,100 CY Poor
Uncontrolled Fill w/Debris
123,000 CY 12,000 CY 135,000 CY
It is noted that the destination location for the cut material is dependent upon the quality of the
material and its ability for reuse. Regarding quality,EnviroScience performed grab samples to assess
soil quality,which has been determined clean and unrestricted for disposal.The Applicant has not yet
identified the disposal locations for the cut material; however, it is assumed that all material will be
transported to points west of the subject property. The transport to points west of the site have been
considered in the traffic impact analysis and local truck routes from the subject property to County
Road 48(see Section 3.3 of this DEIS).
Slope Stability
PWGC performed soil borings B-12 and B-13 along the proposed retaining wall to characterize the
soils representative at the slope of the soil cut. The boring results indicate that the soils at these
locations are medium dense to dense sands with gravels (Stratum 2). Prior to the installation of the
permanent retaining wall system, the soil cut is recommended to be sloped on 1.5:1 (Horizontal:
Vertical) slope. This recommendation is based on Occupational Safety and Health Administration
(OSHA) guidelines for excavation safety in Type C (granular, i.e., sandy) soils. A 1.5:1 slope is a 34'
angle,which is equivalent to the soil friction angle of the on-site soils. As indicated by PWGC,granular
soils of this composition (sand with gravel) and relative compaction (medium dense to dense) are
favorable for stable open cuts. A cut on a 34'angle taken from the base of the proposed retaining wall
will not extend horizontally onto the property of the nearest resident,5106 Mill Road. Therefore,slope
stability is not a concern to nearby properties.
Vibrations
The potential for vibrations from soil excavation and construction were also considered in the
geotechnical engineering assessment. As indicated in the Geotechnical Engineering Memo Report,
37
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
equipment and vehicles used for the soil excavation and construction would produce vibrations that
would be imparted to the soils. Construction vibrations are typically recorded as Peak Particle Velocity
(PPV)measured in units of in/second. The US Bureau of Mines RI 8507 report is the common reference
for establishing safe construction vibration levels. Acceptable vibration levels for modern, wood-
framed residential structures are established to be a maximum of 0.5 in/second.
Offsite travel of the vibrations is dependent on the construction methods employed and in-situ relative
density of the onsite soils. Based on the analysis, the medium dense to dense soils of Stratum 2 are
favorable for limiting vibration effects. Vibrations of significant levels can be eliminated with avoiding
disruptive practices such as installation of driven piles or sheet pile installation. These types of
processes are not proposed,and thus,no impacts are expected.
Excavation and construction activity are anticipated to consist mostly of heavy vehicle traffic from
excavators and haul trucks. The CALTrans Transportation and Construction Vibration Guidance
Manual includes a table that lists expected vibration levels for different equipment. The equipment
expected to be used during construction at this site,such as`Large Bulldozer'and`Loaded Trucks',are
stated to have expected PPV's at 25 feet away of 0.89 and 0.076 in/second, respectively. These PPV
values are lower than the 0.5 in/second threshold and will be separated from nearby residential
properties at larger distances than 25 feet. Also,the haul road layout is orientated along the west edge
of the excavation, which maintains the separation distance between vehicle traffic and the closest
residence. As such, there are no vibration impacts expected from soil excavation or construction
activities.
Although the geotechnical engineering analysis concluded no expected vibration impacts,additional
vibration analyses were undertaken by SoundSense and are discussed in Section 3.10 of this DEIS. The
report in its entirety is included in Appendix R of this DEIS.
Soil Quality
As indicated in Section 2.1.1 of this DEIS,soil samples from the embankment at the rear of the marina
buildings were taken and analyzed in September 2020 (see Appendix H). Sample data was compared
to the SCO) for UUSCOs specified in 6 NYCRR Part 375-6, Remedial Program Soil Cleanup Objectives
(December 2006). With the exception of select metals, no compounds analyzed were detected at
concentrations above the laboratory method detection limit.The metals detected in samples from the
site did not exceed their respective UUSCOs.
Proposed Erosion and Sedimentation Controls
An Erosion and Sediment Control Plan (see Appendix C) has been developed for the proposed
development. The specific methods and materials employed in the installation and maintenance of
erosion control measures would comply with the New York State Standard and Specifications for
Erosion and Sediment Control,Blue Book(November 2016).As indicated on the Erosion and Sediment
Control Plan, the following measures would be undertaken and/or implemented prior to and
maintained during construction:
• Existing vegetation to remain would be protected(by installation of construction fence or other
approved means)and would remain undisturbed.
38
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Clearing and grading would be scheduled so as to minimize the extent of exposed areas and the
length of time that areas are exposed, graded, and stripped. Areas would be kept stabilized
through the use of temporary seeding as required. Seed mixtures shall be in accordance with
soil conservation service recommendations.In areas where soil disturbance has temporarily or
permanently ceased, temporary and/or permanent soil stabilization measures would be
installed and/or implemented within seven days.
• The length and steepness of cleared slopes would be minimized to reduce runoff velocities,and
runoff would be diverted away from cleared slopes.
• Sediment would be trapped on the site and not permitted to enter adjacent properties, public
roads,or drainage systems.Sediment barriers would be installed along the limits of disturbance
prior to the start of construction and would be maintained until construction is complete.
• A stabilized construction entrance would be maintained to prevent soil and loose debris from
being tracked onto local roads.The construction entrance would be maintained until the site is
permanently stabilized.
• All stormwater would be retained on-site. Drainage inlets installed on-site would be protected
from sediment buildup through the use of appropriate inlet protection.
• Dust mitigation would be implemented during construction,as follows:
o Water-down access ways,stockpiles,and material prior to loading.
o Limit on-site vehicular speeds to 5 miles per hour(mph).
o Soil stockpiles would be covered.
o All trucks carting loose material and construction debris would be covered.
o A six-foot fence with filter fabric would be installed around the northern and western
portions of the Construction Excavation Area.
• Sediment barriers and other erosion control measures would remain in place until upland
disturbed areas are permanently stabilized. Following permanent stabilization, paved areas
would be cleaned of soil and debris and drainage systems would be cleaned and flushed, as
necessary.
• Property maintenance of erosion control measures is to be performed as indicated by periodic
inspection and after heavy or prolonged storms. Maintenance measures are to include but are
not limited to cleaning of recharge basins,sediment traps and drywells, cleaning and repair of
sediment barriers, repair of berms and runoff diverters, and cleaning and repair of inlet
protection devices.
• To minimize material being brought onto local roads, the following measures would be
implemented:
o All trucks for Phase 1 would enter and exit the subject property utilizing the temporary haul
road connected to West Mill Road. The temporary haul road would include a stabilized
construction entrance to prevent soil and loose debris from being tracked onto local roads.
o All trucks for Phase 2 would enter and exit the subject property utilizing the main entrance
to SYC. The construction entrance would include a stabilized construction entrance to
prevent soil and loose debris from being tracked onto local roads.
o Following each day of sand and removal activities,the local streets would be swept nightly.
The aforementioned erosion and sedimentation controls would minimize the potential impacts
associated with construction activities. Prior to construction,a Stormwater Pollution Prevention Plan
(SWPPP) will be prepared and submitted for the proposed development (see Section 2.2.2 of this
DEIS).
39
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Overall, based on the above, no significant adverse impacts associated with on-site soils, or from the
disturbance of the site would be expected.
Impacts to Seagrass and Shellfish
As requested in the Amended Final Scope for the DEIS, this section of the document is to address
existing seagrass and shellfish adjacent to the subject property for the purpose of determining
potential impacts from erosion and sedimentation. Pursuant to the NYSDEC Statewide Seagrass Map
included as Figure 9 in Appendix A,there is no seagrass present in Mattituck Inlet or Mattituck Creek.
Furthermore, based on CCE's Eelgrass Program, 1.3 which tracks historic and current locations of
eelgrass on Long Island, there is no historic or current presence of eelgrass in Mattituck Inlet and
Mattituck Creek. Accordingly, as there are no seagrasses or eelgrasses present, there would be no
impacts to such grasses.
Regarding shellfish,the proposed action includes the installation of a stormwater management system
(see Grading and Drainage Plan in Appendix C and as evaluated in Section 2.2.2 of this DEIS) to
accommodate and recharge all stormwater on-site from the Project Area and off-site contributing
areas. Additionally, SYC funds and is a host to the CCE FLUPSY program and is,therefore, committed
to improving water quality and shellfish restoration in Mattituck Creek(see Section 1.1.2 of this DEIS).
As the proposed action includes the installation of a stormwater management system as well as the
implantation of erosion and sediment controls during construction, no significant adverse impacts
from sedimentation to shellfish and the existing CCE FLUPSY unit would occur.
Topography
The proposed action requires a modification of the site's topography to accommodate the proposed
development footprint. Based on the Grading and Drainage Plan (see Appendix C), the proposed
grading program would reduce average grade from 50 feet AMSL to 10 feet AMSL within the Phase 1
Construction Excavation Area, and from 47 feet AMSL to 10 feet AMSL in the Phase 2 Construction
Excavation Area. As provided by the project engineer, the existing slopes within the Project Area
would be modified to reduce steep sloped areas (i.e., those greater than 15 percent) by 50 percent.
The table below provides a slope breakdown for the existing and post-development conditions.
Table 11-Post-Development Slope Breakdown within Project Area
% of Site (Post-
Slope Breakdown %of Site(Existing) Development) Change
0-10 percent slopes 37%± 98%± +61%±
10-15 percent slopes 12%± 1%± -11%±
Greater than 15 percent slopes 1 51%± I 1%± -50%±
To stabilize the slopes within the Project Area and to correct existing slope instability due to
unconsolidated materials, an evergreen concrete retaining wall of approximately 875 feet in length
1.3 httno� .searassli.org/canservation/mane era eel rasa by towlz southold.html.
40
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
and varying height is proposed to the north and west of the proposed boat storage buildings.Portions
of the retaining wall would be vegetated for a visually appealing wall that serves to blend with the
landscape. Additionally, upland of the retaining wall, newly landscaped areas and erosion control
blankets would stabilize soils. As indicated in the Geotechnical Assessment subsection above, the
granular soils and relative compaction are favorable for stable open cuts for placement of the retaining
wall,and thus,there are no slope stability issues.
Overall, based on the above, no significant adverse impacts associated with modifications in
topography would be expected.
2.1.3 Proposed Mitigation
The following mitigation measures have been included in the proposed project to effectively minimize or
eliminate any potential adverse impacts associated with development of the site:
• The grading program would result in an excess cut of 134,921 CY of material.All excess soils will
be transported to a registered or permitted facility in accordance with NYSDEC Part 360 for re-
use or local site. As the ultimate location is driven by market conditions and the local need,it is
not possible to identify the specific re-use location or alternative locations at this time.
• To stabilize the slopes within the Project Area and to correct existing slope instability due to
unconsolidated materials, a concrete retaining wall of approximately 875 feet in length and
varying height will be installed to the north and west of the proposed boat storage buildings.
Portions of the retaining wall would be vegetated for a visually appealing wall that serves to
blend with the landscape. Upland of the retaining wall, landscaped areas would use erosion
control blankets and plantings to minimize erosion to the existing slope of the surrounding area
on the M-II zoned parcel. The Geotechnical assessment confirms that the existing soils are
favorable for stable open cuts for placement of the retaining wall.
• Erosion and sedimentation controls will be undertaken prior to and during construction and
would include, at minimum, stockpile protection, inlet sediment control devices for storm
structure protection,silt fencing,minimizing the extent and duration of exposed areas,and the
construction and maintenance of a stabilized construction entrance to prevent soil and loose
debris from being tracked onto local roads.All erosion and sediment control measures will be
routinely inspected and maintained such that no sediment would be transported off-site.
• To minimize fugitive dust emissions,the following measures will be undertaken:watering down
access ways, stockpiles, and material prior to loading; limit on-site vehicular speeds to 5 mph;
soil stockpiles would be covered;all trucks carting loose material and construction debris would
be covered; and a six-foot fence with filter fabric would be installed around the northern and
western portions of the Construction Excavation Area.
• Any debris observed during site preparation including demolition debris, new fill and
excavation areas,vegetation,topsoil,roots,and other deleterious materials deemed unsuitable,
will be removed from the proposed construction areas, and replaced with controlled fill. Site
41
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
clearing, grubbing, and stripping will be performed during dry weather conditions to prevent
excessive rutting and the mixing of organic debris with the underlying soils.
• To avoid poorly draining soils on the south side of Boat Storage Building No. 2 (Proposed
Building 9),soil mixing would be implemented.
• The haul road layout is orientated along the west edge of the excavation,which maintains the
separation distance between vehicle traffic and the closest residence in order to mitigate
potential vibration impacts associated with soil excavation or construction activities.
2.2 Water Resources
2.2.1 Existing Conditions
Groundwater
Regional Geology/Hydrogeology
The geologic setting of Long Island is well documented and consists of crystalline bedrock composed
of schist and gneiss overlain by layers of unconsolidated deposits.Immediately overlying the bedrock
is the Raritan Formation,consisting of the Lloyd sand confined by the Raritan Clay Member.The Lloyd
sand is an aquifer and consists of discontinuous layers of gravel, sand, sandy and silty clay,and solid
clay.The Raritan Clay is a solid and silty clay with few lenses of sand and gravel,abundant lignite and
pyrite,and gray,red or white in color.Above the Raritan Clay lies the Magothy Formation.The Magothy
Aquifer consists of layers of fine to coarse sand of moderate to high permeability,with inter-bedded
lenses of silt and clay of low permeability resulting in areas of preferential horizontal flow.Therefore,
this aquifer generally becomes more confined with depth. The Magothy Aquifer is overlain by the
Upper Glacial Aquifer. The Upper Glacial Aquifer is the water table aquifer at this location and is
comprised of medium to coarse sand and gravel with occasional thin lenses of fine sand and brown
clay. This aquifer extends from the land surface to the top of the Magothy and, therefore, is
hydraulically connected to the Magothy Aquifer.
Depth to Groundwater and Groundwater Flow Direction
To determine the depth to groundwater on the site,the following resources were utilized:
• Published 2016 USGS Groundwater Map.
• Soil borings conducted by McDonald Geoscience in September 2018.
• Soil borings conducted by PWGC in June 2021.
USGS 2016 Groundwater Map
Based upon the USGS Water Table Elevation Map(see Figure 10 in Appendix A),groundwater elevation
is approximately 3 feet AMSL. As the topography on the site ranges from approximately 6 feet to 50
feet AMSL,the depth to groundwater beneath the site would be expected to range from approximately
3 feet bgs to 47 feet bgs.
42
Draft Environmental Impact Statement Rev.November2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
The McDonald 2018 borings(see Section 2.1.1 and Appendix H)were taken adjaceritto existing Marina
buildings at location points where proposed sanitary systems are to be located (soo Appendix C).
Specifically,as described in Section 3.1.1 of this DEIS, Boring 131 was drilled to a depth of 17 feet and
is located southeast of the corner of Building 3 in a sandy area on the upland slope. Boring B2 was
drilled to a depth of 13 feet and is located southwest of Building 7 and northwest of Building 8.Boring
B3 was drilled to a depth of 21 feet and is located west of Building 7 on the northernmost valley ridge
within the proposed Construction Excavation Area. 8[the three borings completed, only Borings 131
and B2 encountered groundwater. lo Boring 81'groundwater was encountered ata depth o[7.6feet
bguoc Elevation 1.4 feet AMSLlnBoring B2'groundwater was encountered mtm depth o[6.4 feet bAu
oc Elevation l.2 feet AK43L
The PWGC 2021 borings(see Section 2.1.1 and Appendix H)were taken in the upland areas and found
groundwater elevation to range from l.U± feet &MSL to 2.5± feet &MSL. Groundwater was
encountered in borings 8-4 through 8-12. Borings 8-5 and B'12 were taken along the proposed
northern boundary of the Evergreen concrete retaining wall. Borings B-3 and B-6 were taken within
the proposed building footprint of Building 10. Borings B'4 and B 8vvecetakeowdtbiotbopcopoyed
building footprint of Building 9. Boring B'7 was taken at the base of the yuutbvveytcro corner of the
proposed Evergreen concrete retaining wall. 0odogy 0'9, B 1O, and B'11 were taken south of the
proposed building footprint of Building 9.The shallowest groundwater was encountered in B-11 atthe
southern boundary of the subject property.
Groundwater Flow Direction
Based upon the Suffolk County's recent groundwater models developed for the Long Island Nitrogen
Action Plan (LlNAP) (included io Appendix 0 ' Subwatocskmd Mappings, Score Cards and Planning
Criteria of the Suffolk County Subwmtocsbed Wastewater Plan [SVYP]). dze local groundwater flow
direction is projected to be east and north towards Mattituck Creek and the Long Island Sound beyond
(ymm Figure 11 iu Appendix A). Groundwater flow beneath the site is to the east towards K8attituck
Creek. A field study was not completed to cuudrnn the groundwater Ouvv as was requested in the
Amended Final Scope. However, the groundwater flow beneath the site was confirmed iu the tbcem
dioneouiona\' uub'oeginna|' numerical groundwater flow noudm|y run to simulate local aquifer
conditions in the Mattituck area in the groundwater modeling report,summarized below and included
in Appendix L of this DB(3. A carefully constructed and calibrated model can reliably predict
groundwater levels and aquifer responses under numerous different conditions and scenarios.
K8u|dp|e years of groundwater level data were used to construct and calibrate the model (in this
particular case some of the local monitoring wells used to construct the model had monthly data going
back as far as 1975)as opposed to a single 12-month period. This allowed for more long-term averages
to be used and also provides for the identification o[anomaly years such as when drier or woi1mr
conditions may prevail. Longer term groundwater trends (rising or falling water levels and potential
causes)can be observed as well when looking back over many years as opposed to a single year.
43
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Groundwater Modeling Report
As part of this DEIS a Groundwater Modeling Report was prepared by PWGC and is included in
Appendix L. The purpose of this Groundwater Modeling Report was as follows:
1. To construct and calibrate an accurate three-dimensional, sub-regional, numerical
groundwater flow model that could reliably be used to simulate local aquifer conditions in the
Mattituck area.
2. To identify nearby local domestic supply wells and determine if the proposed excavation
would adversely impact any wellhead zone of influence or the quantity or quality of water in
the aquifer system for residential water supply.
3. To provide an analysis of the groundwater on site and its contribution to the aquifer serving
the nearby wells under existing conditions and the potential adverse effects, if any, to the
aquifer system serving nearby wells following the excavation.
4. To evaluate the nature of the aquifer that supplies the nearby wells and the relationship of the
subject property as a contributing source and that the proposed excavation would not affect
the quantity of water available to the nearby wells.
S. To determine the direction of groundwater travel on site and travel times and whether the
proposed excavation would disrupt or interrupt groundwater travel or timeframes to reach
surface waters.
6. To estimate the depth of the freshwater lens and elevation of the saltwater interface.
7. To evaluate whether the proposed excavation would alter the saltwater interface in a way that
may cause saltwater intrusion into the aquifer or nearby wellhead zones of influence.
8. To evaluate whether the proposed excavation would cause upconing and saltwater intrusion
by reducing the amount of fresh water entering the aquifer used by the nearby wells;and
9. To estimate at what elevations does potable freshwater begin and end (at the expected
saltwater interface) on site pre and post excavation.
A summary and findings of the Groundwater Modeling Report are included in Section 2.2.2 of this DEIS.
The Long Island Comprehensive Waste Treatment Management Plan(208 Study)
The Long Island Comprehensive Waste Treatment Management Plan was prepared in 1978 as a
management plan for Long Island's groundwater resources. The plan was established under Section
208 of the 1972 Federal Water Pollution Control Act Amendments and is now commonly referred to
as the "208 Study." The 208 Study divided Long Island into eight hydrogeologic zones, investigated
waste control practices and identified best management practices to protect both ground and surface
waters.
44
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The subject property is located in Hydrogeologic Zone IV (see Figure 12 in Appendix A). Zone IV
encompasses the North Fork, Shelter Island,and the northern and eastern portion of the South Fork.
It is characterized by shallow flow systems that discharge to streams and marine waters. A large
portion of Zone IV on the North Fork has been contaminated as a result of agricultural activities.
Fertilizers are a significant source of nitrates to the groundwater in the North Fork and the eastern
South Fork.
The 208 Study included area wide alternatives for each hydrogeologic zone. For Zone IV,the relevant
highest priority area wide alternatives are as follows:
• Reduce excessive use of irrigation water and require the permitting,regulation and monitoring of
irrigation wells.
• Minimize population density by encouraging large lotdevelopment(one dwelling unit/one ormore
acres),where possible to protect the groundwaterfrom future pollutant loadings.
• Control stormwater runoff to minimize the transport of sediments, nutrients, metals, organic
chemicals and bacteria to surface and ground waters.
• Provide routine maintenance of on-site disposal systems.
A consistency analysis with these recommendations is included in Section 2.2.2 of this DEIS.
The Long Island Special Groundwater Protection Area Plan(SGPA Plan)
There are nine designated special groundwater protection areas (SGPA) on Long Island, including
North Hills,Oyster Bay,West Hills/Melville, Oak Brush Plains,South Setauket Woods, Central Suffolk,
Southold, South Fork and Hither Hills.The subject property is not located within an SGPA(see Figure
13 in Appendix A).
Water Supply and Surrounding Wells
The subject property is currently served via four on-site private wells for potable water demand only.
The existing wells were installed prior to the acquisition of the property by SYC, and thus, well
completion reports are not held by the Applicant. Based on the factors and uses summarized below,
the existing wells are projected to supply an annual approximate demand of 1,058 gpd for potable
water supply.It is noted that the subject property does not currently have an irrigation system.
Existing Water Usage:
General Industrial:4,910 SF x 0.04 gpd/SF = 196 gpd
Boat Storage: 61,205 SF x 0.00 gpd/SF =0 gpd
Office: 2,702 SF x 0.06 gpd/SF = 162 gpd
Marina:40 boat slips x 10 gpd/boat slip =400 gpd
Existing Single-Family Residence: 300 gpd/residence=300 gpd
Total: 1,058 gpd
45
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Public Supply(Suffolk County Water Authority)
District 30 of the SCWA is proximate to the site with an existing water main located on Naugles Drive
(approximately 765 feet northwest of the subject property).Based upon the Public Water Supply Well
Maps published by SCWA,there are two public water supply welifields located within a one-mile radius
of the subject property:
1. SCWA- Inlet Drive Well Field-This welifield is located approximately 0.43-mile northwest
of the subject property
2. SCWA-Sunset Drive Well Field-This welifield is located approximately 0.70-mile northwest
of the subject property.
Based on the 500-foot radius map prepared by Young&Young Engineering (see Appendix K),there
are 40 properties identified within a 500-foot radius of the subject property. Consultations were
undertaken with the SCWA to determine the water source for the 40 surrounding properties and,for
those not connected, whether a public water connection was available. According to the SCWA, in
correspondence dated October 21, 2020 (see Appendix K), of the 40 nearby properties, two (2) are
connected to public water and seven (7) have public water connection available. The remaining 31
properties were indicated as not being connected to public water and a connection ability could only
be confirmed with an application to the SCWA. The table below summarizes the data provided by
SCWA and Figure 14 in Appendix A depicts the location of these 40 properties in relation to the SCWA
-Inlet Drive and SCWA-Sunset Drive Well Fields.
46
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 12-Water Source for Surrounding Properties within 500-foot Radius of Subject Site
Connected to
# SCTM No. Property Use Public Water Available Public Water?
1 1000-99-3-23.1 Undeveloped wetland Yes No
2 1000-99-4-23 Pier/Wharf Yes No
3 1000-106-4-2 Seasonal Residence/Waterfront Yes No
4 1000-106-4-3 Other Storage/Waterfront Yes No
5 1000-106-4-4 Residence/Waterfront Yes No
6 1000-106-4-5 Residence/Waterfront Yes Yes
7 1000-106-4-6 Residence/Waterfront Yes Yes
8 1000-106-6-1 Pier/Wharf Subject to SCWA Review No
9 1000-106-6-2 Flood Control/Waterfront Subject to SCWA Review No
10 1000-106-6-3 Restaurant/Waterfront Subject to SCWA Review No
11 1000-106-6-4.1 Restaurant/Waterfront Subject to SCWA Review No
12 1000-106-6-5 Residence Subject to SCWA Review No
13 1000-106-6-7 Residence Subject to SCWA Review No
14 1000-106-6-8 Agricultural Subject to SCWA Review No
15 1000-106-6-13.1 Residential Vacant Land Subject to SCWA Review No
16 1000-106-6-13.7 Residence Subject to SCWA Review No
17 1000-106-6-18 Residence Subject to SCWA Review No
18 1000-106-6-19 Residence Subject to SCWA Review No
19 1000-106-6-20.1 Residence Subject to SCWA Review No
20 1000-106-6-20.3 Municipal Park Subject to SCWA Review No
21 1000-106-6-22.1 Undeveloped land Subject to SCWA Review No
22 1000-106-6-23 Residence Subject to SCWA Review No
23 1000-106-6-25 Residence/Waterfront Subject to SCWA Review No
24 1000-106-6-27.1 Residence/Waterfront Subject to SCWA Review No
25 1000-106-6-27.2 Residence/Waterfront Subject to SCWA Review No
26 1000-106-6-28.1 Residential Vacant Land Subject to SCWA Review No
27 1000-106-6-28.4 Residence/Waterfront Subject to SCWA Review No
28 1000-106-6-29 Residence/Waterfront Subject to SCWA Review No
29 1000-106-6-30 Residence Subject to SCWA Review No
30 1000-106-6-38.2 Residence Subject to SCWA Review No
31 1000-106-6-38.3 Residential Vacant Subject to SCWA Review No
Land/Waterfront
32 1000-106-9-2.3 Agricultural Yes No
33 1000-106-9-3 Agricultural Subject to SCWA Review No
34 1000-106-9-4.1 Residence Subject to SCWA Review No
35 1000-106-9-4.9 Agricultural Subject to SCWA Review No
36 1000-106-9-4.10 Residential Vacant Land Subject to SCWA Review No
37 1000-106-9-4.11 Residential Vacant Land Subject to SCWA Review No
38 1000-107-1-1.3 Estate/Waterfront Yes No
39 1000-107-1-11 Residence/Waterfront Subject to SCWA Review No
40 1000-107-1-12 Residence/Waterfront Subject to SCWA Review No
47
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Surrounding Private Wells
Based on the data provided by SCWA and presented in the table above,there are 31 properties that
are not connected to the public water supply,and thus,served with private wells. Additionally,seven
properties have the ability to connect to the public water supply but remain served with private wells
for potable water supply.
Existing Groundwater Quality
SCWA Published Data
The existing groundwater quality in the area, based on recent available drinking water quality data
published by the SCWA for the 2021 calendar year, was reviewed. Specifically, the following was
reviewed:
• 2022 SCWA Annual Drinking Water Quality report for Distribution Area 30
• 2022 Supplemental Report for Inlet Drive Wellfield
• 2022 Supplemental Report for Sunset Drive Wellfield
The drinking water quality for Distribution Area 30 was analyzed for several groups of chemical
compounds including volatile organic compounds (VOCs), naturally occurring inorganic compounds,
disinfectants and disinfectant byproducts, and synthetic organic compounds such as Perfluoroalkyl
and Polyfluoroalkyl Substances (PFAS), Pharmaceuticals and Personal Care Products (PPCPs),
Pesticides and Herbicides. Additionally, SCWA has performed microbiological testing including
Heterotrophic Plate Count (HPC), and radiological testing. VOCs were not detected in groundwater
samples except for two compounds (1,2-Dichloropropane and MTBE)with all listed values below the
Maximum Contaminant Levels (MCLs). Inorganic compounds were detected with values below MCLs
as well as values without established MCLs. Groundwater samples had an average pH of 7.4 and
turbidity of 0.51.Disinfectants and disinfectant byproducts were detected with all values listed below
MCLs. Synthetic organic compounds such as PFAS, PPCPs, Pesticides and Herbicides were detected
with all listed values below MCLs. Microbiological testing included quarterly sampling for total
coliform bacteria, HPC and E. coli. In 2021, Distribution Area 30 tested positive for total coliform,
negative for HPC in storage tanks, and negative for E. coli. Radiological testing showed detections of
Gross Beta and Radon-222 below the MCL except for Radon-222 which does not have an established
MCL.
The Inlet Drive wellfield located at 950 Inlet Drive, Mattituck was analyzed for the same groups of
chemical compounds as Distribution Area 30, except for the disinfectant and disinfectant byproduct
group,with slight variations in the compound list. VOCs were not detected in groundwater samples
except for one compound(chloroform)which does not have an established MCL.Inorganic compounds
were detected with values below MCLs as well as values without established MCLs. Groundwater
samples had an average pH of 6.1 and turbidity was not detected.Synthetic organic compounds such
as PFAS, PPCPs, Pesticides and Herbicides were detected with all listed values below MCLs.
Microbiological testing included sampling for total coliform bacteria, HPC and E. coli. The Inlet Drive
48
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
welifield tested positive for total coliform, negative for E. coli, and the average HPC was 4-5 cfu/mL.
Radiological testing was not performed.
The Sunset Drive welifield located at 930 Sunset Drive,Mattituck was analyzed for the same groups of
chemical compounds as Distribution Area 30, except for the disinfectant and disinfectant byproduct
group,with slight variations in the compound list. VOCs were not detected in groundwater samples
except for one compound(chloroform)which does not have an established MCL.Inorganic compounds
were detected with values below MCLs as well as values without established MCLs. Groundwater
samples had an average pH of 6.2 and turbidity was not detected. Synthetic organic compounds such
as PFAS,PPCPs,Pesticides and Herbicides were detected with all values below MCLs. Microbiological
testing included sampling for total coliform bacteria, HPC and E.coli.The Inlet Drive wellfield did not
detect total coliform,E.coli,or HPC.Radiological testing was not performed.
Environmental Data Resources(EDR)Report
PWGC reviewed an environmental database report compiled by Environmental Data Resources(EDR)
of Shelton,Connecticut as part of this DEIS(see Appendix L).The purpose of the review was to identify
any environmental concerns impacting groundwater quality for the subject property or nearby
properties in the vicinity of the subject property. Databases reviewed included federal and state lists
of known spill sites or suspected contaminated sites, lists of known handlers or generators of
hazardous waste, lists of known waste disposal facilities,and lists of aboveground and underground
storage tanks (ASTs and USTs). PWGC's review of the environmental database and available
groundwater quality data did not identify any environmental concerns impacting groundwater at the
subject property or surrounding properties that would be exacerbated by the redevelopment plans for
the SYC.
Sanitary Waste Generation and Discharge
All sanitary waste generated on-site is accommodated via a subsurface sewage disposal system located
between Buildings 2 and 3. Based upon data provided by the project engineer and included on the
Utility Plan in Appendix C, the existing total sanitary waste generation is approximately 1,058 gpd.
Below is a breakdown of the existing sanitary flow:
o Residence: 300 gpd
o Office: 2,702 SF x 0.06 gpd/SF(density load) = 162 gpd
o Marina:40 boat slips x 10 gpd/boat slip(density load) =400 gpd
o General Industrial Storage:4,910 SF x 0.04 gpd/SF(density load) = 196 gpd
Suffolk County Sanitary Code
Article 6 - Single-Family Residences, Realty Subdivisions, Developments and Other Construction
Projects).
Article 6 of the Suffolk County Sanitary Code (SCSC)regulates sewage disposal for realty subdivisions,
development,and other construction projects for the protection of water resources. To limit nitrogen
loading in various groundwater management zones, Article 6 sets forth population density
equivalents. The subject property is located within Groundwater Management Zone IV(see Figure 15
49
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
in Appendix A). Pursuant to Article 6 of the SCSC, the maximum permitted sanitary discharge to
individual sewerage systems is 600 gpd/acre, and when exceeded, a community sewage system
method of disposal is required.
The subject property is 32.96± acres with 16.46± acres zoned M-II and the remaining 16.5± acres
zoned R-80. Approximately 0.63± acre on the M-II zoned portion of the site contains regulated tidal
wetlands and are, therefore, deducted when determining the total permissible flow. Based on the
overall 32.33±acres,the total permissible flow is 19,398 gpd. However,as the proposed development
considers only the M-II portion of the site,the total permissible flow would be 9,498 gpd based on a
land area of 15.83± acres (i.e., 16.46± acres minus the 0.63± acre of tidal wetlands).As noted, in this
Section of the DEIS above, the site currently generates approximately 1,058 gpd of sanitary waste,
which is below the maximum allowable sanitary flow.
Additionally,as of Resolution No. 702-2020 adopted on October 16, 2020, I/A OWTS are required for
new or expanded single-family residences and new"other construction" projects effective on July 1,
2021. New construction for other construction projects includes construction of a new, detached
structure that requires a sanitary system; addition to or modification of an existing structure that
requires the addition or modification of a sanitary system;a change of use requiring the installation of
a sanitary system or increase in wastewater capacity; or a major reconstruction project. The
amendments to Article 6 of the SCSC also expanded the list of I/A OWTS technologies allowed,modified
the horizontal separation distance requirements for I/A OWTS and modified the design capacity for
modified subsurface sewage disposal systems from 15,000 gpd to 30,000 gpd. It is noted that
Resolution No. 702-2020 was adopted, in-part, based on the findings of the SWP which determined
that utilizing I/A OWTS for all new or expanded construction is vital to a countywide strategy to reduce
nitrogen pollution from onsite wastewater systems(page 4-17).The SWP also concluded that utilizing
"I/A OWTS is the most cost-effective means of reducing nitrogen pollution from on-site wastewater
resources in Suffolk County."
Article 7-Water Pollution Control
Article 7 of the SCSC is intended"to safeguard all the water resources of the County of Suffolk especially
in deep recharge areas and water supply sensitive areas, from discharges of sewage, industrial and
other wastes, toxic or hazardous materials and stormwater runoff." The deep recharge areas are
identified on the Suffolk County Sanitary Code -Article 7 Groundwater Management Zones & Water
Supply Sensitive Areas map (SCDHS, 1999) as Groundwater Management Zones I, II, III and V. The
Article 7 map also illustrates portions of Suffolk County as water supply sensitive areas.As defined at
§760-703 of the SCSC,a water supply sensitive area includes: "[a]groundwater area separated from a
larger regional groundwater system where salty groundwater may occur within the Upper Glacial
aquifer,and where deepening of private wells and/or the development of community water supplies
may be limited;" "[a]reas in close proximity to existing or identified future public water supply
wellfields....[i.e.,] within 1,500 feet upgradient or 500 feet downgradient of public supply wells
screened in the Upper Glacial aquifer;" and "[a] limited water budget area..." Article 7 provides
additional restrictions for the deep recharge zones and water supply sensitive areas including
stringent limitations on toxic and hazardous materials storage and discharge.
50
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Pursuant to the Article 7 Map (see Figure 16 in Appendix A), the subject property is located in
Groundwater Management Zone IV, which is not a regulated deep recharge area. Furthermore, the
subject property is not within an area that is 1,500 feet upgradient or 500 feet downgradient of a public
supply well that screens in Upper Glacial aquifer,or other water supply sensitive area.
Article 12-Toxic and Hazardous Materials Storage and Handling Controls
Article 12 of the SCSC regulates the storage and handling of toxic and hazardous materials for the
protection of groundwater quality. As depicted on the Utility Plan in Appendix C,there are currently
five aboveground storage tanks (AST),with only four tanks operational. A description of the on-site
tanks with assigned tank numbers pursuant to SCDHS records follows.
1. AST Tank#6: 2,000 Gallon/Gasoline (north side of Building 3)-this tank has secondary
containment capable of containing the entire capacity.
2. AST Tank #7: 6,000 Gallon / Diesel Fuel (north side of Building 3) - this tank has
secondary containment capable of containing the entire capacity.
3. AST Tank#8: 275 Gallon/No.2 Fuel Oil (Heating) (inside Building 2 on the eastern side
of building) - this tank is indoors and its capacity does not require secondary
containment.
4. AST Tank#9: 275 Gallon/No.2 Fuel Oil (Heating) (inside Building 2 on the eastern side
of building) - this tank is indoors and its capacity does not require secondary
containment.
5. AST Tank#10 275 Gallon/No.2 Fuel(Heating) (inside Building 3 on the northern side of
building) (not in use) -this tank is indoors and its capacity does not require secondary
containment.
SYC maintains an Article 12 Permit from SCDHS dated September 1,2017 for the storage of hazardous
materials at the subject property(see Appendix J).The permit is active through August 31,2022. It is
noted that SYC staff receives training and certification to adequately handle and operate the materials
associated with the existing marina operation. All tanks are inspected annually.
In addition to the above, SYC also stores and utilizes various chemicals for boat maintenance and
repairs. The table below includes a full inventory of such chemicals.
51
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 13-On-Site Stored Chemicals for Boat Maintenance,Repair and Detailing
Chemical Maximum Amount Stored
Denatured Alcohol 6 Quarts
Turpentine 4 Gallons
Fiberglass 300 Pounds
Dewaxer 6 Quarts
Xylene 3 Gallons
Adhesive Remover 5-18 oz.Aerosol Cans
Teak Cleaner 10 Gallons
Household bleach 4 Gallons
Biodegradable Parts Cleaner 25 Gallons
On and Off Hull and Bottom Cleaner 6 Gallons
Muriatic Acid 5 Gallons
Strip Away Varnish Remover(Biodegradable&Environment Friendly) 6 Quarts
Simple Green(Non-Toxic Biodegradable All-Purpose Cleaner) 6 Quarts
Engine Oil 160 Gallons in 5 Gallon Pails
Waste Oil-Repurposed as Fuel Oil for Furnace in Shop 800 Gallons
Non-Toxic Antifreeze for Boat Water System Winterizations 630 Gallons in 1 Gallon Containers
Ethylene Glycol Antifreeze for Engine Cooling Systems 60 Gallons in 1 Gallon Containers
Antifouling Paint(Ablative Non-Copper based) 80 Gallons
Enamel Paint-Boat hulls and Buildings 50 Gallons
Other Facility Permits
Boat Painting/Antifouling Certification
In accordance with NYCRR Part 325 and Environmental Conservation Law(ECL)Article 33 Pesticides,
SYC is a registered Pesticide Business with the NYSDEC as it provides commercial aquatic antifouling
paint application services. Aquatic antifouling paints are ablative non-copper based "pesticide
products used on vessel hulls,boat bottoms,structures and other marine surfaces to inhibit the growth
of aquatic organisms."1.4 SYC received a registration certificate from the NYSDEC on February 19,2020
certifying it as a Pesticide Business under Category 5D -Aquatic Antifouling (see Appendix M). This
registration is valid through December 31, 2022. Currently, the quantity of water-based aquatic
antifouling paint stored on-site is 80 gallons.
Pursuant to §325.18 - Certification Training Course Requirements for Commercial Technicians and
Courses Designed for Recertification of Commercial and Private Applicators,the current SYC staff has
completed the necessary 30 hours of training or equivalent training courses required to handle aquatic
antifouling paint application services.
14httpS://www.dec.ny.govjDermitsL41072.html.Accessed December 2020.
52
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Suffolk County Subwatershed Wastewater Plan(SWP)
In July 2020, SCDHS prepared the Suffolk County SWP, as part of the LINAP and to fulfill the
recommendations of the Suffolk County Comprehensive Water Resources Management Plan, to
address and reduce nitrogen pollution in surface waters and groundwater within Suffolk County.The
intent of the SWP is to provide a roadmap for Suffolk County to take meaningful steps to implement
recommendations aimed at reducing nitrogen loading from wastewater resources into the waters of
Suffolk County.The SWP found that an estimated 63.6 percent of the nitrogen reaching groundwater
in Suffolk County subwatersheds originates from on-site wastewater systems(page 1-4).
The SWP provides nitrogen reduction recommendations through the LINAP, individual estuary
programs(e.g.,Long Island Sound),and individual Town/Village initiatives.Therefore,SWP is a small
part of a larger Suffolk County initiative to reduce nitrogen pollution in County water resources.
The SWP indicates Mattituck Inlet/Creek, Low, and Tidal Tributaries (Tribs) subwatershed
contributes to the Long Island Sound,Suffolk County East subwatershed.Approximately 40.92 percent
of the entire subwatershed is within the 0-2-year groundwater contributing area. According to the
LINAP models (included in Appendix D-Subwatershed Mappings,Score Cards and Planning Criteria of
the SWP), the entire M-11 zoned portion of the subject property and eastern side of the R-80 zoned
portion of the subject property are within the 0-2-year groundwater contributing area to the Mattituck
Inlet/Creek,Low,and Tidal Tribs subwatershed(see Figure 11 in Appendix A).The remaining area of
the R-80 zoned portion of the subject property falls within the 2-10-year groundwater contributing
area to the Mattituck Inlet/Creek,Low,and Tidal Tribs subwatershed. As indicated in the Groundwater
Modeling Report included in Appendix L of this DEIS, the Suffolk County travel times are based on
water table travel to the surface water body. The groundwater model predicted travel time of 4 to 4.5
years is based on a deeper starting point(40 feet into the water table).
As set forth in the SWP,this subwatershed is Priority Rank 1,which means it has moderate to severe
water quality impacts,the highest nitrogen load,or is poorly flushed(page 2-69). Of the Long Island
Sound subwatersheds, 22 percent are Priority Rank 1, 19 percent are Priority Rank 2,48 percent are
Priority Rank 3,and 11 percent are Priority Rank 4(page 2-75).
Suffolk County Comprehensive Water Resources Management Plan
The Suffolk County Comprehensive Water Resources Management Plan was completed in 2015 to set
forth goals and objectives targeted to protect and improve ground and surface water quality based
upon updated water quality investigations. The primary areas for improvement identified in the plan
are as follows: Nitrogen,VOC's, Pesticides, Pharmaceuticals and Personal Care Products (PCP's) and
Potable Supply. The plan outlines recommendations for improving conditions in each of the
aforementioned areas. The recommendations are primarily guided towards additional evaluation of
groundwater and surface water,development of alternative on-site wastewater treatment options for
residential and non-residential properties,educational outreach programs for fertilizer and pesticide
reduction and expansion of the potable water supply to communities where public water is not
available.While this plan outlines specific goals that are municipally minded,the overall intent of the
plan is to reduce the overall levels of containments,such as fertilizers,pesticides and nitrogen in our
ground and surface waters. A consistency analysis with these recommendations is included in Section
2.2.2 of this DEIS.
53
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Stormwater Runoff and Drainage
Under existing conditions,as a facility that has existed in its current state for 60 years,there are few
existing drainage structures (controls) on the site. There are a few grates/drainage inlets within the
existing operational marina portion of the subject property and in other areas,Stormwater infiltrates
through existing landscaped/planted areas or gravel surfaces. On the vegetated uplands,Stormwater
is recharged naturally through infiltration.
Chapter 236 of Town Code-Stormwater Management
The Town of Southold regulates Stormwater management and discharge associated with land-
disturbing activities and projects that involve a replacement of or addition to impervious surfaces.
Pursuant to§236.16(A) of the Town Code,all development,construction,excavation,and landscaping
activities regulated under Chapter 236 of the Town Code are to be conducted in accordance with an
approved Stormwater management control plan. An analysis of the proposed project's consistency
with Chapter 236 of the Town Code is included in Section 2.2.2 of this DEIS.
New York State Pollutant Discharge Elimination System Permit(SPDES)
The NYSDEC administers the State of New York's National Pollutant Discharge Elimination System-
approved State Pollutant Discharge Elimination System (SPDES) program with permits issued in
accordance with the New York State ECL Article 17,Titles 7,8 and Article 70. Specifically,the General
Permit for Stormwater Discharges from Construction Activity(GP-0-20-001) applies to the following
construction activities:ss
• Construction activities involving soil disturbances of one(1) or more acres,including disturbances
of less than one acre that are part of a larger common plan of development or sate that will
ultimately disturb one or more acres of land; excluding routine maintenance activity that is
performed to maintain the original line and grade, hydraulic capacity or original purpose of a
facility.
• Construction activities involving soil disturbances of less than one(1)acre where the Department
has determined that a SPDES permit is required for stormwater discharges based on the potential
for contribution to a violation of a water quality standard or for significant contribution of
pollutants to surface waters of the State.
• Construction activities located in the watershed(s) identified in Appendix D that involve soil
disturbances between five thousand(5,000)square feet and one(1)acre of land.
An owner or operator of a construction activity that is eligible for coverage under this permit must
obtain coverage prior to the commencement of construction activity. Projects covered under the
SPDES GP-0-20-001 are required to develop and implement a SWPPP that meets the criteria set forth
by NYSDEC.
�s httpl .dec.ny.gov does wets%° �adf constgp020001,pdf
54
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Section 2.2.2 of this DEIS discusses the proposed project's compliance with the New York SPDES
GP-0-20-001.
New York State Stormwater Management Design Manual
The NYSDEC's New York State Stormwater Management Design Manual(2015)(NYSStormwaterDesign
Manual)was prepared to provide standards for stormwater management practices(SMPs),after site-
specific conditions are considered,to protectwaters from adverse impacts associated with stormwater
runoff. Standard SMPs are structural practices that are acceptable for water quality treatment and
meet the performance standards of this manual. Acceptable SMPs for stormwater management and
treatment are divided into five broad groups(pages 3-7 and 3-8):(1)stormwater ponds which involves
a permanent pool of water or a combination of permanent pool and extended detention to treat
stormwater runoff; (11)stormwater wetlands which includes the use of wetlands,shallow marsh area
and small permanent pools and extended detention storage to treat stormwater runoff; (111)
infiltration practices which involves capturing and temporarily storing stormwater runoff before
infiltration to the underlying soils; (IV) filtering practices which involves capturing, temporarily
storing stormwater runoff and passing it through a filter bed of treatment media such as sand,organic
matter or soil; and (V) open channel practices which involves capturing and treating stormwater
within designed dry or wet cells.
As noted above, under existing conditions, stormwater runoff is captured in a few grates/drainage
inlets within the existing operational marina portion of the subject property and in other areas,
stormwater infiltrates through existing landscaped/planted areas or gravel surfaces.On the vegetated
uplands, stormwater is recharged naturally through infiltration. The proposed project's consistency
with the NYS Stormwater Design Manual,2015 included in Section 2.2.2 of this DEIS.
New York State Standards and Specifications for Erosion and Sedimentation Control,Blue Book
The NYSDEC's New York State Standards and Specifications forErosion and Sedimentation Control,Blue
Book (November 2016) provides standards and specifications for the selection, design and
implementation of erosion and sediment control practices. This manual provides guidance for the
development of Erosion and Sediment Control Plans for inclusion in a SWPPP as part of the SPDES
General Permit for Stormwater Discharges from Construction Activity(GP-0-20-001,current version).
The standards and specifications provide criteria on minimizing erosion and sediment impacts from
construction activity involving soil disturbance to protect the waters of the State of New York from
sediment loads during runoff events (page 1.1). This manual is divided into four (4) sections with
associated standards and specifications:site planning,preparation and management; erosion control
(runoff control); erosion control(soil stabilization);and sediment control.The appropriate standards
set forth in this manual should be incorporated into all Erosion and Sediment Control Plans. The
proposed project's consistency with the New York State Standards and Specifications for Erosion and
Sedimentation Control,Blue Book(November 2016)is included in Section 2.2.2 of this DEIS.
55
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Nationwide Urban Runoff Program(NURP Study)
The Long Island Segment of the Nationwide Urban Runoff Program(NURPStudy)was published in 1982
by the Long Island Regional Planning Board to address pollutant loading contributed by nonpoint
sources. It has been concluded that nonpoint urban runoff is the most significant nonpoint source of
stormwater runoff pollution. While these conclusions had been made, there was still uncertainty
regarding the role of urban runoff in contaminant transport.As such,the NURP Study, has attempted
to address some critical uncertainties,as follows:
• the actual proportion of the total pollutant loading that can be attributed to stormwater runoff,
given the presence of other point and non-point sources and conditions within the receiving waters,
• sources,wash-off/transport mechanisms and receiving water impacts,
• the appropriate criteria to be used in determining the existence of a runoff problem;and
• the effectiveness and cost of proposed but relatively untried non-structural control measures.
The findings and conclusions of the NURP Study led to a series of recommendations and priorities for
implementation regarding stormwater runoff for the protection of groundwater and surface water
resources.A list of these recommendations follows.
Groundwater Recommendations:
• Continue to use recharge basins wherever feasible for the disposal of stormwater and the
replenishment of the groundwater.
• Avoid maintenance practices that would interfere with the natural revegetation of basins by
grasses and shrubs.
• Use"ecological recharge basins"only where their aesthetic value justifies the additional cost.
• Consider the use of in-line storage leaching drainage systems, or components thereof, as a
substitute for recharge basins in areas, other than parking lots, where maintenance will be
assured and where the value of the land for development purposes is greater than the cost of
installing and maintaining the underground system. Storage leaching drainage systems should
also be considered for use where the installation of recharge basins is not feasible.
• Prevent illegal discharges to drainage systems or recharge basins.Such discharges,which often
result from improper storage or deliberate dumping or chemicals, must be controlled at the
source.
Surface Water Recommendations:
• Preclude any additional direct discharge of stormwater runoff into surface waters, using all
available means for detention and/or recharge to reduce bacterial loads.
• Protect stream corridors from encroachment, so that the stream reaches that will become dry
because of the lowering of the water table due to sewering will always be available for
stormwater detention and recharge.
• Inform local officials and the public regarding the nature and cost of the nonpoint source
controls that must accompany further development or redevelopment and of needed changes in
current practices relating to dog waste clean-up and disposal and public feeding of waterfowl.
56
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Initiate studies, including mathematical modeling where appropriate, to identify the most
promising opportunities for effecting changes in certification status at reasonable cost.
• Initiate pilot programs designed to encourage the proper clean-up and disposal of canine fecal
material and to discourage public feeding of waterfowl in order to determine the impact of such
programs on receiving water quality.
• To achieve some portion of an important beneficial use of areas currently in violation of the
standard for the taking ofshellfish:
o Investigate the physical, political and economic constraints on the wider use of
controlled shellfish harvesting in conjunction with depuration or transplanting to
certified areas.
o Devise measures for minimizing or overcoming those constraints.
• Pursue the investigation, begun with Salmonella study, to identify and quantify the presence of
human enteric pathogens in stormwater runoff and in the receiving waters. For sewage a
relationship has been established between the presence of total and fecal coliforms and the
associated presence of human pathogens. However, over 90% of the coliform load in estuarine
waters is contributed by stormwater. Therefore,investigations into whethersuch a relationship
exists forstormwatershould be continued and expanded.
A consistency analysis of the proposed action with the relevant recommendations of the NURP Study
regarding stormwater management,is included in Section 2.2.2 of this DEIS.
Nonpoint Source Management Handbook
The Nonpoint Source Management Handbook,which was prepared as part of the U.S. EPA's 208 Plan
Implementation Program,is divided amongst several elements:Land Use;Stormwater Runoff,On-site
Systems; Highway Deicing; Fertilizer; Animal Waste; Well Location, Construction, Use and
Abandonment; Boat Pollution; and Site Plan Review and Ordinances. The Nonpoint Source
Management Handbook makes a variety of recommendations for counties, municipalities, engineers,
etc., for controlling non-point sources of groundwater contamination. Relevant recommendations
from this study, along with a review of the project's consistency therewith, are presented in Section
2.2.2 of this DEIS.
Wetlands and Surface Waters
Wetlands
The subject property lies adjacent to Mattituck Creek,a marine water body that supports recreation
and commerce. Pursuant to the NYSDEC Tidal Wetlands Map(see Figure 17 in Appendix A),Intertidal
Marsh(IM)wetlands are present in the southeastern portion of the subject property and Littoral Zone
(LZ)are present along the eastern boundary of the subject property. An assessment of these ecological
communities is further discussed in the Ecological Report completed by Land Use Ecological Services
(LUES) in Appendix N and further addressed in Sections 2.4.1 and 2.4.2 of this DEIS. The existing
bulkhead that runs along the majority of the eastern property line is also visible. Review of the NYSDEC
Freshwater Wetlands Map indicates that there are no freshwater wetlands present on the subject
property nor adjacent properties (see Figure 18 in Appendix A).
57
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The tidal wetlands to the south of the existing bulkhead were flagged by En-Consultants in June 2017
and depicted on the Alignment Plan in Appendix C. The mean high water (MHW) was delineated in
February 2021 at an approximate elevation of 4.0 feet ASML.
New York State Environmental Conservation Law(ECL)Article 25-Tidal Wetlands
As discussed above,NYSDEC-mapped IM and LZ tidal wetlands are present along the eastern boundary
of the subject property and southeast portion of the subject property east of the existing bulkhead.
The New York State Tidal Wetlands Permit Program is regulated by Article 25, Environmental
Conservation Law 6 NYCRR Part 661. In New York State,tidal wetlands are defined as:
(a) those areas which border on or lie beneath tidal waters,such as, but not limited to, banks,
bogs,salt marsh,swamps,meadows,flats or other low lands subject to tidal action,including
those areas now or formerly connected to tidal waters.
(b)all banks, bogs,meadows,flats and tidal marsh subject to such tides, and upon which grow
or may grow some or any of the following:salt hay(Spartina patens and Distichlis spicata),
black grass (Juncus Gerardi), saltworts (Salicornia ssp.), sea lavender (Limonium
carolinianum),tall cordgrass(Spartina pectinata and Spartina cynosuroides),hightide bush
(Iva frutescens), cattails (Typha angustifolia and Typha latifolia), groundsel (Baccharis
halmilifolia),marsh mallow(Hybiscuspalustris)and the intertidal zone including low marsh
cordgrass(Spartina alterniflora).
Regulating the tidal wetlands of New York State enables the State, "to preserve and protect tidal
wetlands, and to prevent their despoliation and destruction,giving due consideration to the reasonable
economic and social development of the state."
Within the tidal wetlands of New York State,the following activities are regulated and require a permit
from NYSDEC pursuant to Article 25 Title 4(§25-0401-Regulated Activities):
"(A)ctivities subject to regulation hereunder include any form of draining,dredging,excavation,and
removal either directly or indirectly, of soil, mud, sand, shells,gravel or other aggregate from any
tidal wetland, any form of dumping,filling, or depositing, either directly or indirectly, of any soil,
stones, sand,gravel, mud, rubbish, or fill of any kind; the erection of any structures or roads, the
driving of any pilings or placing of any other obstructions,whether ornot changing the ebb and flow
of the tide,and any other activity within or immediately adjacent to inventoried wetlands which may
substantially impair or alter the natural condition of the tidal wetland area.
The depositing or removal of the natural products of the tidal wetlands by recreational or
commercial fishing,shellfishing,aquaculture,hunting or trapping,shall be excluded from regulation
hereunder,where otherwise legally permitted
Activities, orders, and regulations of the department of health or of units of local government with
respect to matters of public health shall be excluded from regulation hereunder,except as hereinafter
provided Copies of all such public health orders and regulations affecting tidal wetlands shall be filed
58
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
with the department of environmental conservation. The commissioner may require modification of
such orders or regulations if he deems it necessary to implement the policy of this act.
The commissioner shall review all current mosquito control projects to determine whether they are
having any adverse impact on tidal wetlands. Where any adverse impact is found,the commissioner
following a public hearing, may require modification of such projects if he deems it necessary to
implement the policy of this act.
Where the dredging or filling is in the navigable waters of the state or is for the reconstruction or
repair of certain dams and docks, and where such activity also substantially affects tidal wetlands,
any person undertaking such activity must seek permission under this act as well as under any other
applicable law.
NYSDEC issued a Non-Jurisdictional Determination and Tidal Wetlands Permit (Permit No. 1-4738-
01843/00028) on January 31, 2020 for the proposed action,which is further discussed in in Section
2.2.2 of this DEIS.
Chapter 275 (Wetlands and Shoreline) of Town of Southold Town Code
Chapter 275 of the Town Code, Wetlands and Shoreline, provides regulations for Town-identified
wetlands. The purpose of Chapter 275 is "to ensure for the citizens of the Town of Southold the
protection,preservation,proper maintenance and use of its wetlands,giving due consideration to the
reasonable economic and social development of the Town." The Board of Trustees of the Town of
Southold regulates Town wetlands,which include"any freshwater wetland,tidal wetland,beach,bank,
bluff, dune, flat, marsh, swamp, wet meadow, bog, or vernal pool, any creek, estuary, stream, pond,
canal, or lake, land underwater, land subject to tidal action, land within 100 feet of the areas listed
above,and all Town waters."The proposed action's consistency with the applicable sections of Chapter
275 of the Town Code (§275-3 Findings, Purpose,jurisdiction, Setbacks and §275-12 Standards for
Issuance of Permit)are presented in Section 2.2.2 of this DEIS.
Surface Water
Mattituck Harbor(Inlet and Creek),
As discussed in the Boat (Vessel) Study, appended in Appendix M, Mattituck Harbor is a federal
navigational channel comprised of Mattituck Inlet and Mattituck Creek. Mattituck Harbor extends
2.25±miles south from Long Island Sound to the hamlet of Mattituck.Mattituck Inlet is approximately
100 feet wide, and Mattituck Creek is approximately 80 feet wide throughout. Mattituck Harbor has
two jetties at Mattituck Inlet, the east which was constructed in 1906 and the west jetty was
constructed in 1938. USACOE deemed Mattituck Harbor a navigational asset to the United States with
regards to commerce as it supports recreational boating and several marinas, including SYC, and
serves as a"Harbor of Refuge"during severe storms.
59
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Mattituck Inlet Soundings and Tidal Range
Inlet soundings at low tide were performed by H&L Contracting LLC for Mattituck Creek from the Inlet
at Long Island Sound to SYC on April 8, 2020 (see the Boat [Vessel] Study in Appendix M). Overall,
average channel depths at low tide are in the 9-to-10 feet range with most areas significantly deeper
than that. While channel depths decrease along the banks, the approximate centerline of the
navigation channel has adequate depth for boats/yachts to traverse without grounding and boat
captains would utilize on-board navigational charts to guide safe movements. The channel depths are
adequate for the boat/yachts that are expected to utilize the SYC storage facilities (with similar yacht
types currently utilizing Mattituck Creek). As outlined in Table 3in Section 2.2.4 of Appendix M,the
drafts of the boats/yachts range from approximately 5-feet-1 1-inches to 6-feet-8-inches. It should also
be noted that vessels a part of the commercial fishing fleet currently dock along Mattituck Creek,and
these vessels have greater channel depth requirements with greater drafts (i.e.,7 feet typical drafts).
The tidal range for Mattituck Creek is approximately five feet.76 At low tide, depths adjacent to SYC
average between 9-to-10 feet within the channel.At high tide,the average depths range from 14-to-15
feet.As noted above,there two areas immediately north of SYC with depths greater than 25 feet and
at high tide would be approximately 30 feet, providing substantial draft for the yachts typically
serviced by the existing marina.
Mattituck Inlet Dredging Program
As discussed in Appendix M, Mattituck Harbor is a designated Federal Navigation Channel under the
Rivers and Harbors Act of 1896 (29 Stat. 202), modified in 1935 (P.L. 74-409) and 1964. This
designation gives authority to the USACOE to maintain the navigability of the channel.Due to the filling
of Mattituck Inlet and Creek through natural processes,USACOE routinely dredges Mattituck Inlet and
Mattituck Creek to ensure the water body remains safe for navigation. Dredging programs ensure
higher water quality as natural ecosystems can function as intended.A rehabilitation project for the
west jetty was completed in 1996 and maintenance dredging for the channel at Mattituck Inlet was
completed in 2004.
As discussed in Appendix M, USACOE, NYSDEC, and the Town of Southold coordinated to develop a
routine dredging program for Mattituck Inlet in the early 2000's.The program was formalized in 2014.
The existing program provides for a minimum channel depth of 7 feet from Long Island Sound to the
hamlet of Mattituck. In 2014,approximately100,000 CY of material was dredged from the channel of
Mattituck Inlet to make the depth 13 feet.The dredged material was placed along the shoreline of Bailie
Beach in Mattituck.
Waterbody Classification(6 NYCRR Part 701)
The classification of all waters in New York State are defined at 6 NYCRR Part 701 of the New York
State Code. These classifications are broken down into four types of waterbodies (i.e., fresh surface
waters, saline [marine] surface waters, groundwaters, and trout waters). The classifications provide
descriptive designations that define the best usage for each type of classified waterbody. General
16 htt somariraeweather.net/tide/ attituck-inlet-long island sound nv tides
60
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
conditions that apply to all water classifications, as defined at 6 NYCRR §701.1, is "the discharge of
sewage,industrial waste or other wastes shall not cause impairment of the best usages of the receiving
water as specified by the water classifications at the location of discharge and at other locations that
may be affected by such discharge."
As Mattituck Creek falls into the saline surface water category, saline (marine) surface waters are
classified as followed(6 NYCRR§§701.10 through 701.14):
• Class SA - The best usages of Class SA waters are shellfishing for market purposes, primary and
secondary contact recreation and fishing. These waters shall be suitable for fish, shellfish and
wildlife propagation and survival.
• Class SB- The best usages of Class SB waters are primary and secondary contact recreation and
fishing. These waters shall be suitable for fish,shellfish and wildlife propagation and survival.
• Class SC-The best usage of Class SC waters is fishing. These waters shall be suitable for fish,shellfish
and wildlife propagation and survival. The water quality shall be suitable for primary and
secondary contact recreation,although other factors may limit the use for these purposes.
• Class I - The best usages of Class 1 waters are secondary contact recreation and fishing. These
waters shall be suitable for fish, shellfish, and wildlife propagation and survival. In addition, the
water quality shall be suitable for primary contact recreation,although otherfactors may limit the
use for this purpose.
• Class SD - The best usage of Class SD waters is fishing. These waters shall be suitable for fish,
shellfish and wildlife survival. In addition, the water quality shall be suitable for primary and
secondary contact recreation, although other factors may limit the use for these purposes. This
classification may be given to those waters that, because of natural or man-made conditions,
cannot meet the requirements for fish propagation.
According to the NYSDEC Environmental Resource Mapper,Mattituck Creek is classified as a Class SA
saline surface water(see Figure 19 in Appendix A).1.7
Shelifishing
Shelifishing is a permissible activity within Mattituck Creek. The waters of Mattituck Inlet and
Mattituck Creek adjacent to the subject property are seasonally uncertified according to 6 NYCRR Part
41 (Sanitary Conditions on Shellfish Lands) of the New York State Code. Section 41.3 lists those
"shellfish lands in Suffolk County[that] are in such sanitary conditions that shellfish thereon shall not
be taken for use as food and such lands are designated as uncertified areas."18 According to
§41.3(7)(iv), Mattituck Inlet and the majority of Mattituck Creek is seasonally uncertified such that
from May 1 to December 31 shellfish harvesting is not allowed in Mattituck Inlet or Mattituck Creek
(see Figure 20 in Appendix A).
77httfas://www.dec.nyegov animals/33301.ht I
18httpswwwedec.ny ov outdoor/103433eht I#Mattituck Inlet and Mattituck Creek?
61
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Since the 1980s, Mattituck Creek's shellfishing areas have been routinely closed due to water quality
issues.These water quality issues can be attributed to stormwater runoff into the creek in addition to
changes in dissolved oxygen levels. Since 1995, the Town Board of Trustees and NYSDEC began
collecting water quality data to determine changes in Mattituck Creek19. A drainage system was
installed on Bayview Avenue on the west side of Mattituck Creek, located south of SYC, and
improvements in water quality were seen. NYSDEC has periodically reopened portions of Mattituck
Creek for shellfishing since 2000.The stipulation for remaining open to shellfishing was that no more
than three inches of rainfall could accumulate over seven consecutive days.In April 2012, 92 acres of
Mattituck Creek were closed for shellfishing due to the presence of saxitoxins,which are harmful to
humans if consumed.20 This was the first time NYSDEC closed Mattituck Creek to shellfishing since the
agency began sampling for the biotoxin 2006, when the first large-scale shellfishing closure was
enforced by NYSDEC due to a harmful algal bloom. It is important to note that pursuant to the SWP,
there are four Harmful Algal Blooms (HABs) monitored within the marine water bodies of Suffolk
County:brown tide(Aureococcus anophagefferens),two types of red tides(Alexandrium fundyense and
Dinophysis acuminata),and rust tide (Cochlodinium polykrikoide). Toxic blooms like these are closely
related to warmer weather and occur almost annually in Long Island's waters. Mattituck Creek was
not reopened to shellfishing until April 2014.1.6
As noted Section 1.1.1 of this DEIS, the subject property is a designated host for the CCE Marine
Program for shellfish resotration. A portion of the existing marina is a shellfish nursery that has
enabled approximately 6 million clams to be grown using eight (8) FLUPSY's over the last year (see
Appendix M)and over 10 million in the last four years.A minimum of approximately 1.5 million clams
per year are expected to be harvested from the FLUPSY units at SYC. Once harvested, the clams are
relocated to a NYSDEC-designated sanctuary site pursuant to the LISRP.
North of the subject property, along the west side of Mattituck Creek, is Mattituck Commercial Dock
marina with slips for commercial boats and the Mattituck Fishing station with approximately 40
recreational fishing boats. Further north, towards the mouth of Mattituck Creek, is the NYSDEC
Mattituck Creek Waterway Access Site which provides boat and kayak launches, boat slips, a fishing
pier, picnic tables,walking trails, and parking.21 Breakwater Park is also located north of the subject
on the east side of Mattituck Inlet. There is a parking lot, restrooms, a playground,volleyball courts,
and swimming beach.Fishing along the breakwater is a popular activity.South of the subject property,
along the west side of Mattituck Creek are residential land uses.
North of the subject property,along the eastern side of Mattituck Creek are residential land uses and
an M-II parcel with commercial fishing dock and loading pier.Many of the residences along the water
have docks leading to Mattituck Inlet. Further north, along the east side of Mattituck Creek is State-
owned and Town-owned recreation and open space that includes preserved areas and Bailie Beach
Park. Bailie Beach Park which is part of the Mattituck Park District is only accessible to Town of
Southold residents.There is also a Scout Lodge that is popular amongst Boys Scouts and Girl Scouts for
camping. No fishing is permitted,and the beach does not have a lifeguard.To the south of the subject
property,along the east side of Mattituck Creek,are residential land uses.
1.9 httplsuffolkti es.ti esreview.co 2014/01�dec declares- attituck-creek-ok-for-shellfishing/
20 htt s: /ww .nesday.co (long island/suffolk/dec shuts-shellfish-harvesting-in-southold-1.3644504
21 hops://www.dec.n . ov/outdoor/7780.htm1.
62
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Overall, as described above, the existing land uses along Mattituck Inlet and Creek (including the
subject property) is consistent with the intended best use for designated Class SA waterbodies as
shellfish harvesting is allowed during permitted seasons and there are primary and secondary contact
recreation and fishing.
Suffolk County Department of Health Services(SCDHS)Office of Ecology-Bureau of Marine Resources
Surface Water Quality Monitoring Database
As discussed in the Strong's Yacht Center- Boat (Vessel) Study (see Appendix M), SCDHS conducts
surface water quality monitoring for Mattituck Inlet and Mattituck Creek as part of various monitoring
and management programs. For Mattituck Inlet and Mattituck Creek, there are five (5) monitoring
stations -two at Mattituck Inlet and three in Mattituck Creek in the northern, central,and southern
portions of the creek.Bay Station 055320 is the closest monitoring station to the subject property.Data
from 2000 through 2020 was provided by SCDHS for this monitoring station.
The time period between 2012 and 2020 was analyzed to establish a baseline of water quality
conditions before and after the Applicant purchased the subject property in September 2016.The data
concluded the water quality trends were typical of the entirety of Mattituck Inlet and Mattituck Creek
as well as followed the seasonal trends of Long Island Sound. There was no indication that the
Applicant's purchase of the subject property and subsequent operation of the marina impacted water
quality conditions. Based on historic news articles for Mattituck Inlet and Mattituck Creek related to
water quality, the water quality issues in Mattituck Harbor have existed for at least 20 years and
harmful algal blooms occur annually. Specifically,mussels within Mattituck Creek tested positive for
marine biotoxins, such as saxotoxins, which causes paralytic shellfish poisoning if consumed by
humans. The Town of Southold overall has made efforts to curtail stormwater runoff from entering
Mattituck Creek to reduce potential impacts to water quality. See Section 3.0 in Appendix M for
additional data and the full analyses completed.
Draft New York State 2018 Section 303(d) List of Impaired Waters Requiring a TMDL/Other Strategy
Section 303(d)of the Clean Water Act(CWA),"requires states to identify the subset of state waterbodies
where water quality standards are not met and where uses are not supported. The Section 303(d) List
includes those waters (and associated pollutants) that do not support uses,and which require
development of a Total Maximum Daily Load(TMDL)strategy." The Draft New York State 2018 Section
303(d)List of Impaired Waters Requiring a TMDL/Other Strategy(hereinafter"303(d)List of Impaired
Waters") was issued on June 20, 2018. Mattituck Inlet/Creek Lower and Tidal Tributaries (1702-
0020) was added to the 303(d) List of Impaired Waters in 2018 due to pathogens from urban areas
and stormwater runoff entering the waterbody. As a result of these pollutant sources, there are
shellfishing restrictions and limitations for Mattituck Inlet/Creek Lower and Tidal Tributaries.22 The
official description of all shellfish closures for uncertified or closed areas is listed at 6 NYCRR Part 41
(Sanitary Conditions on Shellfish Lands) of the New York State Code. Section 41.3 lists those "shellfish
lands in Suffolk County[that] are in such sanitary conditions that shellfish thereon shall not be taken
for use as food and such lands are designated as uncertified areas."23 As discussed above, Mattituck
22 htttrso/l .dec.nV. ov flocs water pdf/section303d2018. df
23 httpso [ w .dec.nv. ov outdoorf 103483.ht 1#Mattituck Inlet and Mattituck Creek?
63
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Inlet and the majority of Mattituck Creek are seasonally uncertified,such that from May 1 to December
31 shellfish harvesting is not allowed in Matticuk Inlet or Mattituck Creek.
NYSDOS Significant Coastal Fish and Wildlife Habitat
The subject property lies adjacent to the west of Mattituck Creek and south of Mattituck Inlet,which
are designated by the New York State Department of State (NYSDOS)as a Significant Coastal Fish and
Wildlife Habitat(see Figure 21 in Appendix A).The Coastal Fish and Wildlife Habitat Assessment Form
for the Mattituck Inlet Wetland and Beaches,accessed from the NYSDOS website,indicated this habitat
consists of"approximately 60 acres of tidal wetland and creek,10 acres of shoals and mudflats,and 80
acres of protected park district land (including beaches) located on either side of the Mattituck Inlet
jetties. North of the wetland, Mattituck Inlet,a deepwater inlet with strong tidal flushing, enter Long
Island Sound.South of the inlet,Mattituck Creek extends south for one mile with moderate residential
and marina development."24 Mattituck beaches along both sides of the inlet have provided significant
nesting habitat. Mattituck Creek supports a productive local recreational fishery along with the
wetland which serves as an important habitat for a variety of other wildlife and marine life (including
shellfish).
2.2.2 Potential Impacts
Groundwater
Groundwater Modeling Report
A numerical 3-D groundwater modeling report and assessment has been prepared by PWGC (see
Appendix L)to address the following,as set forth in the Amended Final Scope:"(1)analyze and discuss
in detail the impacts on private wells in the surrounding area including technical details on
groundwater depth, quality, quantity, freshwater lens, saltwater interface, amount of flow in gallons
per minute(GPM),direction of travel,and travel times.Include zones of influence from each wellhead,-
and (2) analyze and discuss the effect of excavation on groundwater,as well as any expected impacts
to neighboring wells.Include an analysis on the potential for salt-water intrusion into neighboring well
as a result of the excavation's effect on groundwater in the area." As further explained by the Planning
Board in its clarification of the Amended Final Scope on April 5, 2021, the DEIS is to address the
"potential moderate to large impacts from significant soil excavation on-site that is potentially capable
of affecting the hydrology and zones of influence for nearby private wells, and the quantity of water
available after excavation is completed. Because the aquifer can fluctuate seasonally, conducting this
study over time is important to account for all seasons including summer when quantities may be
significantly lower due to less rainfall."
A finite difference method(FDM) model was utilized to predict aquifer responses under steady state
and transient conditions that result from the proposed excavation to take place at the existing Yacht
Center site on Mattituck Creek in Mattituck, NY. The modeling platform was run using the USGS
program MODFLOW (MODFLOW 2005). The software package used to run the model code was
Groundwater Vistas Version 8.16(GV8)Build 15 by Environmental Simulations,Inc.
24 httnsl .dos.n�gcav�opd�pro ra s�consistencv(Habitats/Lon IslandlMattituck Inlet Wetland.ndf.
64
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
A three-dimensional,sub-regional, numerical groundwater flow model was constructed to represent
a portion of the North Fork of Long Island, centered around the Mattituck area. The model extents
encompass an area that ranges from the Long Island Sound on the north,the Great Peconic Bay to the
south,approximately Aldrich Lane to the west,and approximately Alvahs Lane to the east(see Figure
3 in the Groundwater Modeling Report in Appendix L).
As explained in the Groundwater Modeling Report(Section 1.1-Background),a groundwater model
was employed rather than taking monthly water level observations over the course of a year because
it has several advantages. A carefully constructed and calibrated model can reliably predict
groundwater levels and aquifer responses under numerous different conditions and scenarios.
Multiple years of groundwater level data were used to construct and calibrate the model (in this
particular case some of the local monitoring wells used to construct the model had monthly data going
back as far as 1975)as opposed to a single 12-month period. This allows for more long-term averages
to be used and also provides for the identification of anomaly years such as when drier or wetter
conditions may prevail. Longer term groundwater trends (rising or falling water levels and potential
causes)can be observed as well when looking back over many years as opposed to a single year.
The groundwater model developed for SYC is able to predict groundwater levels under a variety of
conditions,predict groundwater travel times,flow paths,estimate wellhead capture zones or zones of
influence and can also be used to model the saltwater interface and thickness of the freshwater lens
under different stresses such as changing recharge patterns or excavated site conditions (model
potential saltwater intrusion or upconing effects). Again, the model developed for SYC relied upon
many years of USGS local groundwater level data for its construction and to a high degree of
calibration. A single year of monthly groundwater level observations would not provide anywhere
near the same ability of a properly prepared groundwater model to carry out the desired analyses that
have been requested.
A summary of the analyses and findings of the Groundwater Modeling Report are included below,with
the report included in its entirety in Appendix L of this DEIS.
Impacts on Local Domestic Supply Wells
As part of the Groundwater Modeling Report,the nearby local domestic supply wells were identified
and an analysis was conducted of the potential impacts on any wellhead zone of influence,as well as
on the quantity and quality of water in the aquifer system for residential water supply. Figure 9 of the
Groundwater Modeling Report in Appendix L identifies the location of local private wells.
Wellhead zone of influence is evaluated using particle tracking. MODPATH Version 5 was employed
to analyze and visualize the particle tracks. MODPATH is a particle-tracking post-processing model
that computes three-dimensional flow paths using output from groundwater-flow simulations based
on MODLFOW,the USGS finite-difference groundwater flow model.The program uses a semi-analytical
particle-tracking scheme that allows an analytical expression of a particle's flow path to be obtained
within each finite-difference grid cell.A particle's path is computed by tracking the particle from one
cell to the next until it reaches a boundary, an internal sink/source, or satisfies another termination
criterion (i.e.,a certain time in the future or the past). Under the existing condition,a ring or cluster
of particles were installed around each of the well screens that were identified for lots that surround
65
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
the subject site that are not serviced by the SCWA. The particles were set to reverse track back to their
respective points of origin. The predicted particle tracks or paths depict the wellhead zones of
influence or capture.
The particle tracking analysis indicates the domestic supply wells as having relatively low pumping
rates (325 gpd) which are expected to have very narrow zones of influence. Figure 14 in the
Groundwater Modeling Report in Appendix L depicts the predicted wellhead zones of influence under
existing/ unexcavated conditions and also shows the ground surface contours. The model was then
run under excavated/post-development conditions to determine if excavating the site would have any
influence on surrounding wellhead zones of influence. Figure 15 in the Groundwater Modeling Report
in Appendix L presents the model output for this condition where nothing changes except for the
ground surface elevation within the limits of excavation at SYC and the amount of recharge occurring
within those limits (the recharge increases from 0.0085 feet/day to 0.0101 feet/day).
When comparing existing to post-development conditions,as explained in the Groundwater Modeling
Report,there are no noticeable changes in particle tracking trajectories. This is due to the fact that the
proposed site excavation would take place entirely above the water table and the proposed site
modifications would only slightly add more water to the local aquifer system due to the increased
recharge post construction. As such, the proposed site excavation would not have any impact
hydraulically on the nearby surrounding domestic supply wellhead zones of influence.
Additionally,SYC is proposing to convert two of the four on-site wells to be used for irrigation. Figure
14a of the Groundwater Modeling Report in Appendix L depicts the two wells to be utilized for
irrigation purposes only. The significance of this change is that by utilizing the two wells for only
irrigation, less water would be withdrawn from the aquifer post-construction. The annualized daily
pumping rate from SYC would be reduced to 218 gpd as opposed to the average domestic supply
pumping rate of 325 gpd (0.225 gpm).As indicated in the Report,less water withdrawal has multiple
benefits with regards to the site having less of an influence on neighboring wells, and what is later
addressed,on saltwater intrusion and upconing.
Regarding the impact on quantity and quality,the 3-1)groundwater model included particle tracking
from the subject property where particles were released from beneath the proposed site excavation
and tracked forward until they reached a termination point. Groundwater recharging beneath the
Construction Excavation Area was shown to flow towards Mattituck Creek (see Figure 16 of the
Groundwater Modeling Report in Appendix L)and was not intercepted by any of the domestic supply
wells that are in proximity to the subject property. As such, the model demonstrates that the
neighboring wells would not be impacted with respect to groundwater quality as a result of the
proposed site excavation.
Potential Impacts on Groundwater Quantity
The Groundwater Modeling Report also included an analysis of the groundwater at the site and its
contribution to the aquifer serving the nearby wells under existing conditions and the potential
adverse effects,if any,to the aquifer system serving nearby wells following the proposed excavation.
As indicated in the Report,shallow groundwater beneath the subject property flows eastward towards
Mattituck Creek. USGS data supports this flow direction as do the groundwater model flow simulations
(see Figure 16 in the Groundwater Modeling Report in Appendix L).
66
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The groundwater model was calibrated to a current recharge rate of 0.0085 feet/day or 37.23
inch/year (76 percent of annual precipitation of 49 inches). Over the approximately 16.5-acre M-II
zoned parcel,the volume of recharge under existing conditions is 2,230,489.80 feet3/year or 6,110.93
feet3/day. Post-development,the subject site would have an additional 2.36±acres as impervious. The
entire excavated area is planned to be constructed with a drainage and sub-surface recharge system
that would collect and recharge nearly 100 percent of the precipitation that lands upon it. The actual
drainage plan accommodates 7.77± acres of land area, which includes the Project Area and
contributing off-site area (as explained later in this subsection). This system would greatly reduce
runoff and evapotranspiration effects, and thus, have a net increase with regards to groundwater
recharge. As set forth in the Report, the post-development recharge volume across the entire 16.5-
acre M-II site is estimated at 2,345,038.08 feet3/year or 6,424.76 feet3/day. Comparing the existing to
post-development conditions, approximately 114,548.28 feet3/year of additional recharge would
reach the aquifer system.
Under both existing and post-development conditions the post excavated site, groundwater flows
towards Mattituck Creek. Figures 16 and 16a in the Groundwater Modeling Report in Appendix L
depicts these conditions. Under the post excavated conditions, a slight increase in the water table of
0.01 feet is predicted immediately beneath the proposed Construction Excavation Area due to the
increase in stormwater recharge. The model shows no particle deflections or trajectory changes,and
thus,no significant adverse impacts on nearby wells are anticipated.
Aquifer Evaluation
As part of the groundwater modeling analysis,the nature of the aquifer that supplies the nearby wells
and the relationship of the subject property as a contributing source was evaluated. As excerpted from
the Report, the aquifer system beneath the site is comprised of multiple hydrogeologic units. The
upper or most shallow unit where the neighboring domestic supply wells are screened is commonly
referred to as the Harbor Hill Outwash. Directly beneath that is a thin,highly permeable layer that is
known as the Ronkonkoma Drift. Immediately below that is a confining clay layer. Figure 4 in the
Groundwater Modeling Report in Appendix L depicts a typical cross section through the groundwater
model with all layers and hydrogeologic units numbered and identified.
The upper two hydrogeologic units are considered and modeled as unconfined aquifers while the units
below them are treated as confined aquifers or layers. Thus,the shallow aquifer where the domestic
supply wells are screened, being unconfined, can be directly susceptible to surface-related activities.
However, as explained above,though the site is being excavated,the excavation takes place entirely
above the water table and would not affect the quantity or quality of the groundwater as it relates to
the nearby domestic supply wells. A slight increase in groundwater recharge is expected to take place
post excavation once the site is developed. This increase in quantity is relatively minimal and would
not be predicted to affect the nearby wells. Figures 16 and 16a in the Groundwater Modeling Report
in Appendix L shows no significant adverse impacts or noticeable differences in particle tracks or
trajectories between the existing and post-development conditions.
67
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Impacts on Groundwater Travel Time
The Groundwater Modeling Report determined the direction of groundwater travel on site and travel
times and evaluated whether the proposed excavation would disrupt or interrupt groundwater travel
or timeframes to reach surface waters.
Groundwater flow direction,as indicated earlier,is in an easterly direction towards Mattituck Creek.
The modeling included a line of particles installed along the western boundary of the proposed
Construction Excavation Area and released at approximately 40 feet below the water table at that
location,which is consistent with SCDHS requirements for domestic supply well screen depths. The
particles are then tracked forward and head eastward towards the creek. They start with a downward
trajectory and then eventually begin to flow upwards towards the creek bed. Under the existing
conditions, the groundwater travel time from the location of the western boundary of the proposed
Construction Excavation Area to Mattituck Creek would be between 4 and 4.5 years with a starting
depth of 40 feet below the water table. Figure 17 in the Groundwater Modeling Report in Appendix L
depicts this model output.
Post-development, Figure 17a in the Groundwater Modeling Report in Appendix L depicts the model
run under post excavation conditions where the soil is removed from the proposed excavation area
down to an elevation of 5 feet AMSL and the recharge over that same area is increased slightly to
account for subsurface recharge via roofs and paved surfaces. The buildings are proposed to have a
finished first floor elevation of 10 feet AMSL. The modeled elevation of 5 feet AMSL accounts for the
excavation required to construct and install the building foundation elements. Under post-
development conditions, no noticeable changes in particle tracks or trajectories are observed when
compared to Figure 17 in the Groundwater Modeling Report in Appendix L which presents the
unexcavated/existing conditions. Additionally, the travel times are posted in half-year increments
along the tracks and these again are identical to the unexcavated scenario showing travel times of
between 4 and 4.5 years to travel from roughly 40 feet below the water table at the western excavation
boundary to the bottom of Mattituck Creek. Thus,the groundwater model predicts that the proposed
site excavation would not disrupt groundwater flow directions or travel times to reach the nearby
surface water body.
Freshwater-Saltwater Interface
The Groundwater Modeling Report identified the depth of the freshwater lens and elevation of the
saltwater interface. Estimation of the saltwater interface was accomplished using the 3-D numerical
groundwater model and checked using analytical methods. The USGS program SEAWAT Version 4 was
employed to model and simulate saltwater. The SEAWAT program is a coupled version of MODFLOW
and MT3DMS designed to simulate 3-1), variable density, saturated groundwater flow and multi-
species transport. The variable density flow (VDF) process in SEAWAT is based on the constant
density groundwater flow process of MODFLOW-2000. The VDF process uses the familiar and well
established MODFLOW methodology (finite difference method) to solve the variable density
groundwater flow equation. The MT3DMS part of SEAWAT, referred to as the Integrated MT3DMS
Transport(IMT)process solves the solute transport equation.
The analytical method used to check the modeling results is the Ghyben-Herzberg relation. This
relation states that for every foot above sea level in water table elevation that exists, the saltwater
68
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
interface will be 40 times that below sea level. In most situations, the Ghyben-Herzberg relation
underestimates the depth to the saltwater interface, and thus, it can be used for conservative
preliminary estimates.
As explained in Section 2.1.1 of this DEIS and in the Groundwater Modeling Report, the existing
unexcavated site had two test holes conducted in September of 2018 by McDonald Geoscience for the
purpose of sanitary design. The water table elevations in these test holes were observed to be at 1.2
and 1.4 feet AMSL(NAVD 88).PWGC also performed 13 soil borings in June 2021 where groundwater
was found at 1.0 to 2.5 feet AMSL across the site at that time. The groundwater model under steady
state conditions and calibrated to USGS April 2016 groundwater conditions predicted groundwater
elevations at the two 2018 test hole locations of 1.48 and 1.45 feet AMSL. Under the same conditions,
the model predicted the water table elevation beneath the middle of the proposed excavation limits
for the unexcavated case to be 1.73 feet AMSL(NAVD 88)(see Figure 11a of the Groundwater Modeling
Report in Appendix L). Based on the Ghyben-Herzberg relation,the saltwater interface would then be
expected to least be at an elevation of-69.2 feet AMSL (NAVD 88). The thickness of the freshwater
lens is 70.93 feet.
Figure 18 in the Groundwater Modeling Report in Appendix L depicts a cross section through the
model showing the predicted saltwater extents based on chloride concentrations. The saltwater
interface is predicted to be contained in layer 4 of the model beneath the site excavation limits. The
elevations of the top and bottom of layer 4 beneath the proposed site excavation area are -75 and -
87.88 feet AMSL (NAVD 88). Using the shallowest elevation of layer 4 as a conservative position for
the saltwater interface, the elevation would then be -75 feet AMSL which is 5.8 feet deeper than
estimated by the Ghyben-Herzberg relation. As referenced above,the Ghyben-Herzberg relation tends
to underestimate the interface depth as it was calculated to be-69.2 feet AMSL,a minimum difference
of 5.8 feet. The model predicts a freshwater lens thickness of 76.73 feet.25 Figures 18a through 18d in
the Groundwater Modeling Report in Appendix L show plan views through the upper four layers of the
model and depict the horizontal extents of the saltwater under the unexcavated site conditions. The
figures depict a landward migration of the interface with depth as would be expected. Layer 4 directly
beneath the proposed site excavation limits shows near complete saltwater conditions,indicating that
the interface would be between-75 and-87.88 feet AMSL.
Proposed Excavation Evaluation-Saltwater Intrusion into the Aquifer
The Groundwater Modeling Report evaluated whether the proposed excavation would alter the
saltwater interface in a way that may cause saltwater intrusion into the aquifer or nearby wellhead
25 The two methods of analysis provide differing results because they each use a different type of analysis. The
Ghyben-Herzberg solution is an analytical method that tends to underestimate the saltwater lens thickness.
The groundwater model uses a numerical approach to solve the flow and transport schemes based on the finite
difference method. The Ghyben-Herzberg method also does not consider time and is essentially a steady state
solution. The groundwater model solved the variable density flow analysis using time steps and stress periods
to simulate saltwater movement.Though the two methods of analysis will provide different results they should
be reasonably close,which in general terms means being within 10%or less of one another as is the case here.
The Ghyben-Herzberg method is a conservative analysis that as stated,in most real situations,underestimates
the depth to the saltwater interface and was performed as a check on the modeling results. The groundwater
model predicted a slightly deeper depth to the interface which supports the observation of the Ghyben-
Herzberg tending to underestimate the depth.
69
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
zones of influence. The groundwater model was run under the excavated site conditions to evaluate
potential saltwater interface effects that maybe caused as a result of the excavation. The difference
between the excavated and unexcavated site conditions being that the surface elevations at the
location of the proposed excavation are decreased from between 25 to 50 feet AMSL to 5 feet AMSL
and the recharge occurring within the limits of the proposed excavation is increased from 0.0085
feet/day to 0.0101 feet/day. Figures 18 and 18a through 18d in the Groundwater Modeling Report in
Appendix L depict the existing saltwater conditions prior to the site being excavated. Slightly
increasing the recharge across the area of the proposed site excavation increases the amount of
freshwater being received by the aquifer and in turn would have the effect of causing the saltwater
interface to migrate seaward and downward. Under the excavated site conditions,the water table is
expected to rise 0.01 feet due to the increased recharge (see Figures 11a and 13a in the Groundwater
Modeling Report in Appendix L for unexcavated and excavated site groundwater conditions).Applying
the Ghyben-Herzberg relation to the slightly higher water table elevation indicates that the saltwater
interface is approximately 0.40 feet deeper, and the freshwater lens is 0.41 feet thicker. As such,
saltwater intrusion is not expected to occur as a result of the proposed site excavation, but just the
opposite is predicted.
Figure 19 in the Groundwater Modeling Report in Appendix L is a cross sectional view through the
model output depicting the excavated site conditions and the chloride concentrations. Layer 4 where
the saltwater interface is expected to occur beneath the site excavation is 12.88 feet thick. Based on
the Ghyben-Herzberg relation, a deepening of at least 0.40 feet is expected. The layer being over 12
feet thick,the groundwater model,as constructed,is unable to differentiate this increase graphically.
However,comparing Figures 18 and 19 in the Report in Appendix L,a difference in Layer 3 is noticed.
Under the existing conditions (Figure 18), in layer 3 just to the north of the Construction Excavation
Area,the saltwater interface is present. Reviewing Figure 19 for the post-development condition,the
chloride concentrations that were observed in Figure 18 are no longer present. Similar observations
can be made by comparing the plan views shown in Figures 18a through 18d in the report in Appendix
L for the unexcavated case to Figures 19a through 19d in the report in Appendix L for the excavated
case. Here again, the chlorides concentrations are predicted to be pushed towards Mattituck Creek
away from the site and the surrounding or neighboring domestic supply wells. This is,as stated above,
the opposite effect of saltwater intrusion. The neighboring domestic supply wells were all shown to
have zones of influence that track inland away from Mattituck Creek (see Figure 14a in the
Groundwater Modeling Report in Appendix L).By locally moving the chloride concentrations towards
Mattituck Creek,wells in proximity to the site would experience a subtle improvement with regards to
saltwater intrusion.
Also, to be considered in regard to the saltwater interface and indicated earlier, two existing water
supply wells would to be removed from service as the entire site would be connected to the SCWA for
domestic water supply and the two remaining on-site wells would be converted to irrigation wells.
Post-development, the two wells would have overall less water consumption then their combined
existing condition. The net effect is again less water withdrawal from the aquifer and a benefit with
regards to the saltwater interface position beneath the site.
Proposed Excavation Evaluation-Upconing
The Groundwater Modeling Report evaluated whether the proposed excavation would cause upconing
and saltwater intrusion by reducing the amount of freshwater entering the aquifer used by the nearby
70
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
wells. As indicated above, there would be an increase in recharge to the aquifer post-development
which would result in a slight increase of the water table elevation,which results in a deepening of the
saltwater interface. Upconing occurs when there is a decrease in the water table elevation which
would be the opposite of what is predicted to occur under the post excavated site conditions.
Therefore,no significant adverse impacts due to upconing could occur.
Potable Freshwater Elevation Estimate
As part of the Groundwater Modeling Report,the analysis included identifying the elevation at which
potable freshwater begins and ends(at the expected saltwater interface)both in the existing and post-
development conditions. Under existing or unexcavated site conditions,the water table beneath the
proposed Construction Excavation Area is predicted to be 1.72 feet AMSL (NAVD 88) (see Figure 11a
in the Groundwater Modeling Report in Appendix L). The saltwater interface under the unexcavated
site conditions is estimated to be at an elevation of-68.8 feet AMSL (NAVD 88)based on the Ghyben-
Herzberg relation. The groundwater model estimates the saltwater interface under the existing
conditions to be contained within layer 4 of the model. Layer 4 at the location of the proposed site
excavation has a top elevation of-75 feet AMSL(NAVD 88)and a bottom elevation of-87.88 feet AMSL
(NAVD 88).
The post-excavated site groundwater conditions are predicted by the groundwater model to show a
slight increase in groundwater elevation right at the center of the proposed excavation limits. The
groundwater elevation is predicted to increase by 0.01 feet,or to an elevation of 1.73 feet AMSL(NAVD
88) under the post excavated site conditions (see Figure 13a in the Groundwater Modeling Report in
Appendix L). The Ghyben-Herzberg relation then estimates the saltwater interface to deepen by 0.40
feet, or to an elevation of-69.2 feet AMSL (NAVD 88). The groundwater model still predicts the
saltwater interface to remain in layer 4 of the model (see Figure 19 in the Groundwater Modeling
Report in Appendix L) and as the layer is over 12 feet thick it is unable to distinguish a more precise
elevation under post excavated site conditions. Assuming the worst-case conditions that the top
elevation of layer 4 previously saw chloride concentrations of at least 250 mg/1 under the existing
condition, then under the post excavated site conditions, the interface elevation is expected to be
deeper than-75 feet AMSL(NAVD 88).
The Long Island Comprehensive Waste Treatment Management Plan(208 Study)
As noted in Section 2.2.1 of this DEIS,the 208 Study sets forth the relevant highest priority area wide
alternatives for Zone IV:
• Reduce excessive use of irrigation water and require the permitting,regulation and monitoring of
irrigation wells.
• Minimize population density by encouraging large lot development(one dwelling unit/one or more
acres),where possible to protect the groundwater from future pollutant loadings.
• Control stormwater runoff to minimize the transport of sediments, nutrients, metals, organic
chemicals and bacteria to surface and ground waters.
• Provide routine maintenance of on-site disposal systems.
71
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As noted on the Utility Plans(see Appendix C),the proposed action includes discontinuance of the use
of existing on-site wells for potable water and connection to the public water supply through extension
of the water main. Two existing wells near Buildings 1 and 7 would remain for on-site irrigation use
and the two wells near Buildings 2 and 3 would be abandoned. The proposed irrigation system would
implement smart irrigation controls to reduce or eliminate the use of the irrigation system during
periods of rain.The irrigation system would be installed with a drip line to prevent evaporation as well
as rain sensors so as to not go on while it is raining.However,the proposed landscaping would consist
of native and/or drought-tolerant plants and groundcover to reduce irrigation needs.
Regarding sanitary density and pollutant loading, the proposed action includes the existing sanitary
system that serves Building 1 which would remain,and two (2) I/A OWTS would be installed (one of
which would serve as a replacement system for the current individual on-site sanitary system that
serves the office, marina and other SYC buildings). The I/A OWTS is an on-site decentralized
wastewater treatment system.The proposed I/A OWTS would be designed to reduce total nitrogen in
treated effluent to a minimum of 19 mg/L, in accordance with Section 760-1907D.2 in Article 19
(Management of Innovative and Alternative Onsite Wastewater Treatment Systems) of the SCSC. As
required, the two I/A OWTS would be maintained in accordance with Suffolk County standards.
According to Section XVII(b)in Article 6 of the SCSC,the bottom of any leaching structure is required
to be at least three feet above the highest expected/recorded groundwater elevation at the proposed
system's location and at least two feet for shallow alternative systems(leaching pools,leaching galley,
gravelless absorption trench systems and gravelless absorption bed systems) approved by the
Department. As the proposed action would install the two I/A OWTS and maintain a three-foot
separation distance between the bottom of the leaching structures to groundwater, the proposed
action would comply with this standard of the SCSC.
Regarding stormwater, the proposed development has been designed to comply with the Town's
stormwater regulations set forth in Chapter 236 of the Town Code. As evaluated later in this section,
the stormwater drainage system is designed to retain a two-inch rainfall on-site.In addition,an erosion
and sediment control plan has been developed and prior to construction,a SWPPP will be developed.
Overall,based upon the above analyses,the proposed development plans are consistent with the goals
and standards set forth in the 208 Study.
The Long Island Special Groundwater Protection Area Plan(SGPA Plan)
As noted in Section 2.2.1, the subject property is not within the SGPA. Thus, no significant adverse
impacts are anticipated.
Suffolk County Comprehensive Water Resources Management Plan
The recommendations outlined in the Suffolk County Comprehensive Water Resources Management
Plan were focused on Nitrogen, VOC's, PCP's, and Potable Supply. These recommendations were
municipally minded as the recommendations revolved around additional studies, developing new
regulations and code changes, public outreach and education and creating a reliable funding stream
for recommended projects. However, the overall intent of the plan is to reduce the overall levels of
contaminants,such as fertilizers,pesticides and nitrogen in our ground and surface waters.
72
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The proposed action complies with the intent of the Suffolk County Comprehensive Water Resources
Management Plan, as two I/A OWTS are to be installed to collect and treat sanitary waste generated
for the proposed action and marina operations. I/A OWTS,while newer in use,have shown evidence
of removing emerging contaminants of concern. Utilizing this system would minimize pollution risks
to Mattituck Creek and the groundwater table. Situating the two I/A OWTS away from the shoreline
would decrease the risk of pollution as the systems are at a higher elevation and provide a greater
separation between the system and groundwater.
Based upon the above analyses,the proposed development plans meet the overall intent of the Suffolk
County Comprehensive Water Resources Management Plan.
Potable Water Supply
Domestic and Fire Water System Demand
As noted earlier,there are four on-site private wells that service the subject property. As part of the
proposed action, an extension of the public water main for connection to the SCWA is proposed.
Consultations were undertaken with SCWA and in correspondence dated October 20, 2017 (see
Appendix P), public water has been confirmed to be available to the subject property through an
extension of the existing water main located 765±feet west of the subject property on Naugles Drive.
Accordingly,as part of the proposed action,the water main extension would be installed from Naugles
Drive through West Mill Road to the main entrance to SYC. The water main would be installed along
the western portion of the marina and service the existing buildings,single-family residence,and the
two proposed boat storage buildings. As confirmed by SCWA,the extension of the public water main
would also allow for existing landowners to connect to the public supply system, by request to the
SCWA.
Upon implementation of the proposed action, the two existing on-site supply wells near Buildings 1
and 7 would be converted for use for non-potable water supply only (i.e., irrigation) and the on-site
supply wells near Buildings 2 and 3 would be abandoned. A fire hydrant is proposed north of the
entrance to the marina,on the west side of West Mill Road.
Based on SCDHS design flow factors of 0.00 gpd/SF for boat storage and 0.06 gpd/SF for non-storage
(bathrooms), potable water usage for post-development conditions would increase by 18 gpd from
1,058±gpd to 1,076± gpd. This increase that is associated with employees and not the building area
as such space would be utilized for storage. The total volume of 1,076±gpd would be served entirely
from the public water supply,as noted above.Additionally,water usage associated with other activities
associated with the boat storage use would include water for the power washing of boat bottoms in
the fall season(approximately 50 gallons per boat)and for boat washing in the spring prior to waxing
(approximately 170 gallons per boat). These services would be offered to boat storage customers
when arriving for storage and when exiting storage for the boat season. Bottom painting and
detailing/waxing does not require any additional water usage. This water supply would also be
provided from the new SCWA water connection.
73
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Irrigation Water Supply and Distribution System
Irrigation supply is also proposed with the installation of automatic underground sprinkler systems
with rain sensors to serve new planting areas.In total,approximately 1.22±acres of the 1.91±acres of
new landscaping would be irrigated via the existing on-site wells to be retained near Buildings 1 and
7.Based upon one inch of water per week for the irrigation season of 26 weeks (i.e.,mid-April to mid-
October), approximately 437± gpd for the irrigation season or 218± gpd (averaged annually) is
projected.
Table 14-Irrigation Demand
Input/Assumption Proposed Action
1 inch/week';Irrigation period of 26
Irrigation weeks(April 15-October 15)and only 53,143 SF
Area native,drought-tolerant species would be
planted to reduce irrigation needs.
Average 26 inches/week less precipitation of 24±
Precipitation incheS2 during 26-week irrigation season
Need-
2 inches/irrigation season
Precipitation
Conversion 2 inches/irrigation season/12 inches/foot 0.2 foot/irrigation season
Total Cubic 0.2 foot/irrigation season x 53,143sf
10,629 cubic feet/irrigation season
Feet [area to be irrigated(so]
=79,502 total gallons(for irrigation
season)
Total Gallons 10,629 cubic feet/irrigation season x 7.48 =437 gallons per day(for irrigation
gallons/cubic foot season)
=217.8 gallons/day(annual
average)
1. Melby,Peter,ASLA.Simplified Irrigation Design.PDA Publishers,Mesa,AZ.1988..
2. Islip,NY Historical Data.National Weather Service NOAA(http://www.weather.gov/okx/IslipHistorical
Overall, the post-development withdrawal from on-site supply wells would be reduced from the
current 1,058±gpd to 218±gpd(averaged annually). As indicated above,this decrease combined with
the increase in recharge from a stormwater management system would have a resultant benefit to the
with regards to the saltwater interface position beneath the site.
Sanitary Waste Generation
As indicated in Section 2.2.1 of this DEIS,the existing sanitary waste generation associated with SYC is
approximately 1,058 gpd. Based on SCDHS design flow factors (SCDHS Standards For Approval Of
Plans And Construction For Sewage Disposal Systems For Other Than Single-Family Residences),
sanitary waste generation for post-development conditions would increase by 18±gpd from 1,058±
gpd to 1,076±gpd(based on the SCDHS design flow factors of 0.06 gpd/sf for Non-Medical Office Space,
0.04 gpd/SF for General Industrial Use,and 10 gpd/boat slip for Marina,and 300 gpd for single-family
residential use).
74
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As part of the proposed action,the existing sanitary system that serves Building 1 would remain,and
two(2),600-gallon,I/A OWTS would be installed(one of which would serve as a replacement system
for the current individual on-site sanitary system that serves the office, marina and other SYC
buildings).
A summary of the sanitary calculations and buildings to be served is provided below.
Design Calculations for Sanitary System No. 1 (New System):
General Industrial:4,10 SF x 0.04 gpd/SF(density load) =196 gpd
New Boat Storage: 101,500 SF x 0.00 gpd/SF(density load) =0 gpd
Non-storage (bathrooms): 304 SF x 0.06 gpd/SF(density load) = 18 gpd
Total Design Flow for System No. 1: 214±gpd
Design Calculations for Sanitary System No.2 (Replacement System):
Office: 2,702 SF x 0.06 gpd/SF(density load) = 162 gpd
Marina:40 boat slips x 10 gpd/boat slip(density load) =400 gpd
Total Design Calculations System No.2: 562±gpd
Existing Single-Family Residence Sanitary System(Building 1) (To Remain):
Total System=300 gpd
Total Sanitary Discharge On-Site: 1,076±gpd
It is noted that the projected sanitary flow for the two storage buildings includes only the restroom
area,as these buildings would be dry storage.
Suffolk County Sanitary Code
Article 6 - Single-Family Residences, Realty Subdivisions, Developments and Other Construction
Projects
As the subject property is located in Groundwater Management Zone IV, the maximum permitted
sanitary discharge for the use of on-site sanitary systems is 600 gpd per acre or,approximately 9,498
gpd(based on the developable land area of 15.83 acres,as explained in Sections 1.2.3 and 2.2.1 of this
DEIS. Based on the SCDHS design flow factors, the overall projected sanitary flow for post-
development conditions is 1,076±gpd,as calculated above in this Section of the DEIS.Accordingly,the
proposed action complies with the maximum permitted density set forth in Article 6 of the SCSC
subject to a waiver for usage of employee count and not the storage building area. As discussed in
Section 1.2.3 of this DEIS,the proposed application is subject to a SCDHS Board of Review variance to
vary the design flow factor for the storage buildings to consider employee usage rather than building
area. An application was initially filed with the SCDHS on July 18, 2018. A Notice of Incomplete
Application was received on December 27,2018 advising that restrictive covenants for flow reduction
and a lot line modification to address Lots 13.4 and 1.0 that differ from the 1981 tax maps would be
required. Additional materials have been filed with the SCDHS and consultations are ongoing. All
correspondence to and from SCDHS is included in Appendix J.
75
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in this Section of the DEIS above,the proposed action includes the installation of two 600-
gallon I/A OWTS, one replacing the existing sanitary system and one new system. Each I/A OWTS
would be designed with 5 leaching galleys with 50 percent future expansion in accordance with SCDHS
standards.Sanitary System No.1 would be installed between Buildings 9 and 10 with the control panel
and blower in Building 10.Sanitary System No.2 would be installed to the south of Building 3 with the
control panel and blower in this building.
As noted on the Utility Plan (see Appendix C) and summarized in the table below, the I/A OWTS
systems would comply with the minimum horizontal and vertical separation distances as set forth in
Article 6 of the SCSC.
Table 15-Minimum Horizontal and Vertical Separation Distances for I/A OWTS
Minimum Separation Distances Required Provided
Building on Slab 5 feet 5 feet
Water Service Lines/Laterals/Mains 10 feet' 10 feet
Leaching Structures 3 feet2 8 feet
Groundwater 2 feet/3 feet3 3 feet
'A minimum of 10-foot separation is required between water service line/laterals/mains and the edge of all
stormwater drainage leaching structures.
2Distribution manholes or distribution boxes installed preceding gravel-less absorption trench systems or other
leaching structures(other than leaching pools or galleys)may be installed a minimum of 3 feet to the leaching
structures.
3 The bottom of any leaching structure is required to be at least three feet above the highest expected/recorded
groundwater elevation at the proposed system's location and at least two feet for shallow alternative systems
(leaching pools,leaching galley,gravelless absorption trench systems and gravelless absorption bed systems)
approved by the Department.
As noted in adopted Resolution 702-2020 for approving amendments to Article 6 of the SCSC, I/A
OWTS are"capable of achieving significantly and measurably reduced total nitrogen concentrations as
compared to conventional onsite wastewater treatment systems."I/A OWTS are on-site decentralized
wastewater treatment systems that, at a minimum, are designed to reduce total nitrogen in treated
effluent to 19 mg/L.As noted in the Suffolk County SWP,"an ancillary benefit of treating and disposing
of wastewater through onsite systems is the local recharge of water back into Suffolk County's
groundwater system so that the integrity and volume of Suffolk County's sole source aquifer is
maintained"(page 1-5). The proposed I/A OWTS would be designed to reduce total nitrogen in treated
effluent to a minimum of 19 mg/L,in accordance with Section 760-1907D.2 in Article 19 of the SCSC.
An application for Article 6 Permit was initially filed with the SCDHS in 2018 and consultations with
the SCDHS are ongoing. It is noted that the application is subject to a Board of Review Variance for the
proposed design as the design flow factors have been varied for a self-storage factor rather an
industrial factor due to the nature of the proposed buildings. Specifically, as indicated in the
Application for Variance in Appendix J of this DEIS,a variance from the design flow standards for the
project has been requested because the indoor boat storage buildings are essentially self-storage
buildings with respect to sanitary flow. These buildings are not utilized during the storage season,in
essence the boats are placed into storage and not removed until the following year,which is similar to
76
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
the self-storage use. Flow has been calculated from the small bathroom area. Additionally, a waiver
was requested from the subdivision requirements as the neighboring property is not willing to
participate with the subdivision application. Finally, since the initial filing of the DEIS in December
2021,the following changes have been made to the proposed development plans,at the request of the
Health Department:
• The existing residential structure now has a separate 2-inch diameter water service line that
taps off the water main extension, prior to the RPZ device. Originally, the 2-inch diameter
water service line for the residential structure was located along the water main extension,
after the RPZ device.Due to head loss within the RPZ and from the approximately 50 ft change
in elevation near the house, a booster pump would have been required to provide adequate
pressure at the house connection. The relocation of the proposed tap for the residential
dwelling to a location upstream of the RPZ device reduces the head loss and eliminates the
need for a booster pump.
• A gravity retaining wall was added around Sanitary System No.2.
The applicant continues its consultations with the SCDHS,and a Board of Review hearing is pending.
Article 7-Water Pollution Control
As indicated in Section 2.2.1 of this DEIS, the subject property is not located in a regulated deep
recharge area and is not located within an area that is 1,500 feet upgradient or 500 feet downgradient
of a public supply well that screens in Upper Glacial aquifer, or other water supply sensitive area.As
such,the proposed action is not subject to Article 7 restrictions.
Article 12-Toxic and Hazardous Materials Storage and Handling Controls
The Amended Final Scope requires an analysis of the proposed four LPG tanks with Article 12;
however, SCDHS does not regulate LPG storage. The LPG tanks are subject to compliance with the
2020 NYS Fire Code and the National Fire Protection Association 58-Liquified Petroleum Gas Code,
which sets forth requirements for installation, setbacks, and protection from vehicle impacts (see
Southold Fire Marshal correspondence in Appendix P). Accordingly, through Building Department
review,it is the Southold Fire Marshal that would review and approve such LPG tanks.
As indicated in Section 2.2.1 of this DEIS, SYC maintains a current Article 12 Permit (active through
August 31,2022) (see Appendix J)for the existing tanks and chemicals stored and used on-site. There
are no changes proposed to the existing tanks or volume of materials stored on-site. As such,there is
no additional Article 12 permitting required for the proposed action.
Other Facility Permits
Boat Painting/Antifouling Certification
As indicated in Section 2.2.1 of this DEIS,SYC is a NYSDEC-registered Pesticide Business as it provides
commercial aquatic antifouling paint application services.SYC was issued the registration by NYSDEC
77
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
on February 19,2020 and is active through December 31,2022 (see Appendix M). The SYC staff would
continue to renew the Aquatic Antifouling Applicator Certification,as required.
Suffolk County Subwatershed Wastewater Plan(SWP)
As described in Section 2.2.1 of this DEIS,the M-II zoned portion and the eastern side of the R-80 zoned
portion of the subject property are situated within the 0-2-year groundwater contributing area to the
Mattituck Inlet/Creek, Low, and Tidal Tribs subwatershed (see Figure 11 in Appendix A). The
remaining area of the R-80 zoned portion of the subject property is situated within the 2-10-year
groundwater contributing area to the Mattituck Inlet/Creek, Low,and Tidal Tribs subwatershed. For
properties within a 0 to 25 year-contributing area,the SWP encourages the use of I/A OWTS or STP's
to limit nitrogen loading to subwatersheds. As such,the proposed action complies with the SWP.
In addition to sanitary waste, nutrient pollution also originates from other sources including
stormwater discharge, pesticides and fertilizers. The proposed project includes the installation of a
stormwater management system to accommodate and recharge stormwater generated within the
Project Area. Additionally,the proposed landscape materials would include species that are suitably
adapted to the site conditions to limit or preclude the need for fertilizers and pesticides. Accordingly,
based on the above,the proposed development would be consistent with the intent of SWP to reduce
nitrogen loading to surface waters.
Stormwater Runoff and Drainage
The proposed action would increase the total impervious surface area from 2.62±acres to 4.98±acres
and would modify land coverages from woodland to landscape and pervious pavers. Accordingly,
there would be a resultant increase in the volume of stormwater runoff generated on the subject
property.
As indicated on the Grading and Drainage Plan(see Appendix C),the proposed action includes drainage
controls for approximately 7.77 acres (338,387 SF) of land area,which includes the Project Area and
off-site contributing land area due to site topography. The proposed drainage controls include
leaching pools of varying depths and French drains which includes the use of pervious gravel. The
proposed stormwater management system is designed to accommodate a two-inch rain event in
accordance with§236-7.A of the Town Code and includes four tributaries:
• Tributary Area 1 is 86,997 SF and would collect runoff from the northern portion of the
roof of Building 10,the area between Buildings 7 and 10,and the western portion of the roof
of Building 7. Total Storage Required: 5,387 CF/Total Storage Provided: 5,425 CF
• Tributary Area 2 is 72,426 SF and would collect runoff from the southern portion of the
roof of Building 10 and northern portion of Building 9.Total Storage Required: 10,626 CF/
Total Storage Provided: 10,934 CF
• Tributary Area 3 is 78,010 SF and would collect runoff east of Buildings 9 and 10 and west
of Buildings 7 and 8. Also, off-site stormwater due to existing natural grades would be
78
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
accommodated in this area. Total Storage Required: 8,764 CF / Total Storage Provided:
10,570 CF
• Tributary Area 4 is 100,954 SF and would collect runoff south of Building 9 and all of
Building 8.Also,off-site stormwater due to existing natural grades would be accommodated
in this area. Total Storage Required: 7,851 CF/Total Storage Provided: 8,164 CF
Overall,as the proposed drainage plan would improve on-site stormwater management and provide
drainage for areas that are currently not served,there would be a resultant benefit from the proposed
action.
Chapter 236 of Town Code-Stormwater Management
The Town of Southold regulates stormwater management and discharge associated with land-
disturbing activities and projects that involve a replacement of or addition to impervious surfaces.
Pursuant to §236.16(A), all development, construction, excavation and landscaping activities
regulated under Chapter 236 are to be conducted in accordance with an approved stormwater
management control plan.
A consistency analysis with the performance standards for a stormwater management control plan,as
set forth in§236-18,is included below.
A. The site erosion,sedimentation and stormwater runoff control measures shall be appropriate for
existing topography, vegetation and other salient natural features of the site. The plan shall
indicate that the development will preserve natural features, minimize grading and cut and fill
operations, ensure conformity with natural topography, and retain natural vegetation and trees
to the maximum extent practicable in order to create the least erosion potential and adequately
handle the volume and rate or velocity of surface water runoff.
As discussed in Sections 1.2.5 and 2.1.2 of this DEIS, approximately 4.59± acres would be
excavated and regraded for the proposed action.The proposed grading program is necessary in
order to allow for direct access and transport of yachts from the existing boat lift station situated
to the east of Buildings 7 and 8 to the new storage buildings. During excavation and
construction, erosion and sedimentation controls would be implemented and a SWPPP would
be filed.
As discussed in Section 2.1.2 of this DEIS, the Geotechnical Engineering Assessment prepared
for the proposed project evaluated and concluded that the proposed construction methods
would ensure that there are no slope stability issues. Furthermore, the Engineering Design
Report and Documentation (see Appendix H) reviewed the soil borings conducted by PWGC to
assure design compatibility with the native soils and groundwater elevation. It was concluded
the design principles utilized for this gravity wall system are consistent with the requirements
for the proposed Evergreen concrete retaining wall.
As indicated on the Erosion and Sediment Control Plan in Appendix C, portions of the upland
areas on the northern and western slopes of the M-II zoned parcel would be planted with erosion
79
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
control blankets and plantings to stabilize soils. Regrading of the proposed landscaping area
and utilizing topsoil to introduce plantings would overcome engineering limitations due to
slopes. The establishment and maintenance of vegetation is the most important factor in
minimizing erosion during development.
The previous grading of the subject property created a relatively flat area and modified the soil
profile such that there would be no limitations for the installation of the two I/A OWTS systems.
As discussed in Section 2.1.2, the soil borings performed by McDonald Geoscience for both
proposed sanitary systems concluded there to be no engineering limitations for the new
systems. To avoid potentially poorly draining soils on the south side of the proposed Boat
Storage Building No.2(Proposed Building 9),soil mixing would be completed.No fill is proposed
as part of the proposed action.
Post-development stormwater management controls are also proposed. As indicated on the
Grading and Drainage Plan in Appendix C, the proposed stormwater management plan would
accommodate stormwater runoff from 7.77 acres, which includes the Project Area as well as
contributing off-site land area such that all stormwater runoff from the development area would
be contained and recharged on-site. The methods of drainage control include leaching pools of
varying depths and French drains which includes the use of pervious gravel. The proposed
stormwater management system is designed to accommodate a two-inch rain event in
accordance with§236-7.A of the Town Code.
Overall,based on the above,the proposed action would comply with this performance standard.
B. Site grading,excavation and filling shall minimize destruction of natural vegetation,the potential
for erosion,sedimentation and stormwater runoff and the threat to the health,safety and welfare
of neighboring property owners and the general public.
The proposed action includes the removal of approximately 135,000 cy of soil material, the
removal of 634 trees and replanting of 135 trees (95 Pitch Pines and 40 small trees, such as
Staghorn Sumac and Shadbush, on the proposed retaining wall). The proposed Erosion and
Sediment Control Plan (see Appendix C)includes the protection of existing vegetation to remain
by installation of construction fence or other approved means and would remain undisturbed,
clearing and grading would be scheduled so as to minimize the extent of exposed areas and the
length of time that areas are exposed, graded, and stripped, all stormwater would be retained
on-site,a stabilized construction entrance would be constructed,flush inlet protection would be
utilized, silt fencing would be installed, concrete washout would be installed at construction
entrances,and temporary stockpile areas would be constructed on a 1:3 slope with a maximum
height of 15 feet above grade with a silt fence perimeter and covered to minimize dust.
Additionally, the Engineering Design Report and Documentation (see Appendix H) for the
Evergreen concrete retaining wail concluded the design principles utilized for this gravity wail
system are consistent with the requirements for the proposed Evergreen concrete retaining wall
and that the proposed cut on a 34'angle taken from the base of the proposed Evergreen concrete
retaining wall would not extend horizontally onto the property of the nearest resident, 5106
Mill Road.Therefore, slope stability would not be a concern to nearby properties.As such,the
proposed action would comply with this performance standard.
80
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
C. Erosion, sedimentation and stormwater runoff shall be controlled prior to, during, and after site
preparation and construction. During grading operations,appropriate measures for dust control
shall be undertaken.
As part of the proposed action, erosion and sediment control plans have been prepared,which
include, at minimum, stockpile protection, inlet sediment control devices for storm structure
protection, silt fencing, minimizing the extent and duration of exposed areas, and the
construction and maintenance of a stabilized construction entrance to prevent soil and loose
debris from being tracked onto local roads. All erosion and sediment control measures would
be routinely inspected and maintained such that no sediment would be transported off-site.
Additionally,soil stabilization measures through erosion control blankets would be employed.
The proposed action includes dust control measures through the use of watering during dry
periods,limiting on-site vehicular speeds,and all trucks carting loose material and construction
debris would be covered.Also,all stockpiles would be either covered or vegetated,as necessary,
and a six-foot fence with filter fabric would be installed around the northern and western
portions of the Construction Excavation Area. Additionally, a SWPPP would be prepared and
filed prior to construction.
As such,the proposed action would comply with this performance standard.
D. Areas exposed by site preparation shall be protected during site construction with hay bales,silt
fencing, temporary vegetation and/or mulching to meet the requirements of the NYSDEC Erosion
Control Manual.
As explained in Section 2.1.2 of this DEIS,the proposed Erosion and Sediment Control Plan (see
Appendix C)includes the use of silt fencing and inlet protection.Additionally,soil stabilization
measures through erosion control blankets would be employed. As such,the proposed action
would comply with this performance standard.
E. Natural drainage patterns shall be protected and incorporated into site design. Where natural
drainage patterns are demonstrated to be adversely affecting a beach orsurface waters of the State
of New York, as defined herein, drainage patterns may be altered in a manner which reduces the
threat to such beach or surface waters of the State of New York, as defined herein, and does not
create other flooding or erosion problems.
Natural drainage patterns have been considered in the proposed drainage plan. As indicated
earlier,the proposed action includes drainage controls for approximately 7.77 acres (338,387
SF) of land area,which includes the Project Area and off-site contributing land area due to site
topography. The proposed drainage plan would accommodate and recharge all stormwater
within the Project Area and sized to accommodate a two-inch rain event, as required by Town
Code. As such,the proposed action would comply with this performance standard.
F. Site preparation, including stripping of vegetative cover and grading,shall be undertaken so that
no individual building site is stripped of its vegetation cover more than 30 days prior to
commencement of construction.Soils exposed or disturbed by site preparation shall remain so for
the shortest practical period of time during site clearing,construction and restoration.
81
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in Sections 1.4.1 and 3.10 of this DEIS,the site preparation phase is approximately
two weeks. During the excavation phase, soils would be removed and placed directly into
trailers for off-site removal. Erosion control blankets would be utilized for soil stabilization and
temporary seeding would also be implemented. The only stockpiled soils would be topsoil
reserved for placement in graded areas,which would be covered. As such,the proposed action
would comply with this performance standard.
G. Disturbed soils shall be stabilized and revegetated or seeded as soon as practicable. During the
interim, erosion protection measures such as temporary vegetation, retention ponds, recharge
basins, berming,silt traps and mulching shall be used to ensure that sedimentation is minimized
and mitigated.
As indicated above, erosion control blankets, temporary seeding and new plantings would
stabilize soils and provide effective erosion control.Additionally,the soil cut for the permanent
retaining wall system would be based upon the recommendation for a 1.5:1 (Horizontal:
Vertical)slope. This recommendation is based on OSHA guidelines for excavation safety in Type
C (granular,i.e.,sandy)soils. A 1.5:1 slope is a 34'angle,which is equivalent to the soil friction
angle of the on-site soils. As such, the proposed action would comply with this performance
standard.
H. In no case shall stormwater be diverted to another property either during site preparation or after
development.In appropriate cases,with the approval of the Superintendent of Highways,drainage
control measures may be implemented in the right-of-way attendant to an adjacent Town highway,
at the applicant's expense.
The proposed Grading and Drainage Plan has been designed to capture and accommodate all
stormwater generated from the Project Area and surrounding areas on-site. Overall, as the
proposed drainage plan would improve on-site stormwater management and provide drainage
for areas that are currently not served, there would be a resultant benefit from the proposed
action.As such,the proposed action would comply with this performance standard.
L During the construction period,disposal of stormwater runoffgenerated by development activity
shall be handled on site.Baling,mulching,debris basins,silt traps,silt fencing,use of fibrous cover
materials orsimilar measures shall be used to contain soil erosion on the site.
As discussed above,the proposed Erosion and Sediment Control Plan (see Appendix C) includes
the use of silt fencing and inlet protection. Additionally, soil stabilization measures would be
implemented with erosion control blankets, temporary seeding, new plantings, and the
proposed Evergreen concrete retaining wall. As such,the proposed action would comply with
this performance standard.
J. All projects,regardless of the area ofgroundwater removal and/orgrading,shall retain a natural
vegetative buffer zone along water bodies,including wetlands and marshes...
The proposed development would be situated landward of existing buildings that front
Mattituck Creek. There would be no removal of existing tidal wetland vegetation and no
82
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
activities that would impact Mattituck Creek. As such, the proposed action complies with the
intent of this standard.
K. Natural land features such as shallow depressions shall be used, wherever possible, to collect
stormwater on site for recharge.
The upland area of the subject property includes varied topography where natural stormwater
collection is likely to occur. A portion of this area would be disturbed as part of the overall
excavation and grading program. However, as part of the proposed action, stormwater
management infrastructure would be installed which, as evaluated in the Groundwater
Modeling Report,would increase the on-site stormwater recharge with beneficial impacts to the
groundwater. Specifically, as explained earlier in this section, slightly increasing the recharge
across the area of the proposed Construction Excavation Area increases the amount of
freshwater being received by the aquifer and in turn would have the effect of causing the
saltwater interface to migrate seaward and downward. Under the excavated site conditions,the
water table is expected to rise 0.01 feet due to the increased recharge. As such,the proposed
action would comply with the intent of this performance standard.
L. Site designs shall minimize impermeable paving.
The proposed action would minimize impermeable paving with the new access routes to
Buildings 9 and 10 to consist of a stone blend pavement.The proposed 34 parking stalls to be
striped would all be on existing gravel-surfaced area that is currently used for parking but not
formally striped. As such,the proposed action would comply with this performance standard.
M. Stormwater runoff shall not be directly discharged to surface waters of the State of New York, as
defined herein.Stormwater pollutants shall not be discharged directly into a surface water of the
State of New York,as defined herein,butshall be attenuated by using holding ponds,sedimentation
basins,perimeter berming, vegetated buffer areas and other measures that reduce flow velocity
and increase storage time. Pollutants shall not be discharged into wetlands. In addition, any
filtering devices constructed as part of the drainage system must be adequately maintained in
order to function properly.
The proposed action would not include the discharge of stormwater runoff to the adjacent
Mattituck Creek. As indicated on the Grading and Drainage Plan in Appendix C, the proposed
action includes the installation of leaching pools of varying depths and French drains in areas
east and west of Building 8. The proposed stormwater management system would
accommodate stormwater from the Project Area and off-site contributing areas and is designed
to accommodate a two-inch rain event in accordance with§236-7.A of the Town Code. As such,
the proposed action would comply with this performance standard.
N. All wetland vegetation shall be maintained. Dredging and site construction should not disturb
wetlands either by direct removal of vegetation or substrate or by the alteration of adjacent slopes
that would undermine the stability of the substrate unless permitted by Chapter 275. Grading
equipment shall not be allowed to enter into or cross any watercourse or wetland without an
approved SWPPP,Department approval,or in compliance with Chapter 275.
83
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The existing tidal wetland vegetation located along the southeast property boundary would not
be disturbed. Land disturbance within 100-feet of the tidal wetland boundary would be limited
to 180±linear feet of French drains that are five-feet wide-by-four feet deep along the southeast
side of Building 8 and the striping of parking stalls in gravel-surfaced areas currently used for
same. It is noted that the proposed action was reviewed and approved by the NYSDEC, and a
Tidal Wetlands Permit was issued on January 31, 2020 (see Appendix I). Overall,based on the
above,the proposed action would comply with this performance standard.
0. Subsurface sediments shall be maintained to provide structural support for the soils of the
wetlands.
The proposed action would not disturb any of the adjacent wetland vegetation areas. As such,
the proposed action would comply with this performance standard.
A The elevation of a wetland shall not be altered unless it is part of a wetland restoration project
approved by the Town and/or the Department.
The proposed action does not include any work within a wetland. As such,the proposed action
would comply with this performance standard.
Q. No vegetation required by any agency as a buffer to a natural protective feature shall be disturbed
bygrading,erosion,sedimentation,or direct removal of vegetation.
The proposed action does not include any disturbance to the existing tidal wetland vegetation
or any natural protective feature on-site. As such,the proposed action would comply with this
performance standard.
R. Fill shall not encroach on natural watercourses,constructed channels,wetlands,orfloodway areas.
All fill shall be compacted at a final angle of repose which provides stability for the material,
minimizes erosion and prevents settlement.All temporary stockpiles and/orgraded areasshall be
protected with erosion control measures to include, but not be limited to, hay bales, silt fencing,
and vegetation to meet the minimum requirements of the New York State Stormwater Design
Manual.
The proposed action does not include any fill material. During excavation and construction,
temporary stockpiles of cut material awaiting transport or topsoil for planting would be
covered. Also, as indicated on the proposed Erosion and Sediment Control Plan (see Appendix
C), all temporary stockpiles would have a maximum height of 15 feet above grade, have
maximum slopes of 1 on 3, and located at a minimum distance of 50 feet from concentrated
stormwater flows and inlets.Silt fencing and inlet protection would also be used. The proposed
Grading and Drainage Plan and Erosion and Sediment Control Plan have been developed and
designed in accordance with the standards and specifications of the NYS Stormwater Design
Manual (2015) and New York State Standards and Specifications for Erosion and Sediment
Control, Blue Book (November 2016). As such, the proposed action would comply with this
performance standard.
84
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
S. Trails and walking paths along water bodies shall be sited and constructed so they are not a source
of sediment,as may be required by Chapter 275 and/or as part of an approved SWPPP.
Trails and walking paths are not proposed as part of the proposed action,and there are no trails
present on the subject property. As such,this standard is not applicable to the proposed action.
T. The amount and velocity of runoff from a site after development shall approximate its
predevelopmentcharacteristics.However,ifthe site is adjacent to coastal waters,stormwatershall
be contained on site, to the maximum extent practicable, to prevent direct discharge of runoff to
coastal waters.
The proposed action includes drainage controls to accommodate and recharge stormwater from
the Project Area and off-site contributing areas. There would be no stormwater runoff to
Mattituck Creek or off-site. As such,the proposed action would comply with this performance
standard.
U. Natural floodplains and drainage swales shall not be altered or disturbed in a manner which
decreases their ability to accommodate and channel stormwater runoff and floodwaters. If no
practicable alternative to the location of development, roadway, driveways, and similar surfaces
within these areas exists,such facilities shall be sited and constructed to minimize and mitigate the
amount and velocity of stormwater entering the channel,floodplain or swale and to approximate
the original functions of the undisturbed condition.
A small portion of the proposed disturbance is within Federal Emergency Management Agency
(FEMA) Flood Insurance Rate Map (FIRM), (FEMA Map Panel ID: 36103C0143H) Special Flood
Hazard Area (SFHA)Zone AE,which is subject to inundation by the one-percent annual chance
(or 100 year) flood, along the western sides of Buildings 7 and 8. This disturbance includes
striping gravel-surfaced areas that are currently used for parking but not formally marked and
the installation of 180±linear feet of French drains that are five feet wide-by-four feet deep on
the southeast side of Building 8.The areas to be disturbed for the proposed Buildings 9 and 10
are in Zone X outside of the 100-year floodplain.The locations of Buildings 9 and 10 would be
graded to 10 feetAMSL and meet the existing elevation of the adjacent floodplain.It is noted that
there are no drainage swales present on the subject property. Overall,based on the above,the
proposed action would comply with this performance standard.
V. No land having a slope equal to or greater than 20%shall be developed or disturbed except for
conservation measures or measures intended to remove debris which inhibits the functioning of
natural or engineered drainage and erosion control measures except access ways to shorelines
permitted by Chapter 275. Natural vegetation and topography shall be retained to stabilize soils
and reduce the volume of stormwater overflow.
The proposed action requires a modification of the site's topography to accommodate the
proposed development footprint. Based on the Grading and Drainage Plan (see Appendix C),the
proposed grading program would reduce average grade from 50± feet to 10± feet within the
Phase 1 Construction Excavation Area,and from 47±feet to 10± feet in the Phase 2 Construction
Excavation Area. As provided by the project engineer,the existing slopes within the Project Area
would be modified to reduce steep sloped areas (i.e., those greater than 15 percent) by 50
85
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
percent. As indicated in Section 2.1.2 of this DEIS,to stabilize the slopes within the Project Area
and to correct existing slope instability due to unconsolidated materials, a concrete retaining
wall of approximately 875 feet in length and varying height is proposed to the north and west of
the proposed boat storage buildings. Portions of the retaining wall would be vegetated for a
visually appealing wall that serves to blend with the landscape. Additionally, upland of the
retaining wall,landscaped areas would use erosion control blankets and plantings to minimize
erosion to the existing slope of the surrounding area on the M-II zoned parcel.As indicated in
the Geotechnical Engineering Assessment in Section 2.1.2 of this DEIS, the granular soils and
relative compaction are favorable for stable open cuts for placement of the retaining wall.
Therefore, there are no slope stability issues. Furthermore, as noted earlier, the proposed
Grading and Drainage Plan accommodates stormwater from the Project Area as well as from
surrounding off-site property such that natural drainage patterns would not be disturbed.
An alternative to the cut and removal of soils to decrease the elevation of the Project Area has
been prepared and is evaluated in Section 5.4 of this DEIS. Of importance is that due to the
presence of unconsolidated material,the slopes present and existing stability issues due to the
nature of the material deposited,a retaining wall would still be required to accomplish building
at the higher elevation. As such, slopes of greater than 20 percent would still require
modifications.
W. On lands having slopes of less than 20% but composed of highly erodible soils, development
proposals shall include consideration of the load-bearing capacity of the soils. Unless it can be
demonstrated that the soils can be stabilized with a minimum ofon-site disturbance and no adverse
impacts to the stability of neighboring properties,the development proposal shall not be approved
as submitted.
As indicated in Section 2.1.2,to prevent slope stability issues,the soil cut is recommended to be
sloped on 1.5:1 (Horizontal:Vertical)slope. This recommendation is based on OSHA guidelines
for excavation safety in Type C (granular,i.e.,sandy)soils. A 1.5:1 slope is a 34'angle,which is
equivalent to the soil friction angle of the on-site soils. As indicated by PWGC,granular soils of
this composition (sand with gravel) and relative compaction (medium dense to dense) are
favorable for stable open cuts. A cut on a 34'angle taken from the base of the proposed retaining
wall would not extend horizontally onto the property of the nearest resident, 5106 Mill Road.
Therefore,slope stability is not a concern to nearby properties.
The Engineering Design Report and Documentation(see Appendix H)reviewed the soil borings
conducted by PWGC to assure design compatibility with native soils and groundwater elevation.
It was concluded the design principles utilized for this gravity wall system are consistent with
the requirements for the proposed Evergreen concrete retaining wall.
X. All permanent and/or final vegetation and mechanical erosion control measures called for in
approved plans shall be installed within the time limits specified by the Stormwater Management
Officer,and no later than the time limits specified by the Stormwater Management Officer or noted
in the stormwater management control plan.
This is noted and the proposed action would comply with this standard.
86
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Based upon the above analyses, the proposed development plans are consistent with the goals and
standards set forth in Chapter 236 of the Town Code.
Overall,while the proposed action would increase the volume of stormwater runoff generation,there
would be adequate storage capacity to accommodate all stormwater runoff on-site. The stormwater
infrastructure proposed to be installed would provide substantially greater capacity as compared to
the existing condition with only minimal stormwater infrastructure in place.
SPDES General Permit for Construction Activities
As indicated earlier,the proposed action would disturb approximately 6.51 acres of land. As such,the
SPDES General Permit (GP-0-20-001, current version) requires that a SWPPP be prepared for the
proposed development and such SWPPP is to include a detailed erosion and sediment control plan to
manage stormwater generated on-site during construction activities,as well as for post-construction
stormwater management. In accordance with said regulations,a SWPPP would be prepared to ensure
compliance with erosion and sediment control practices set forth in the New York Standards and
Specifications for Erosion and Sediment Control (NYSDEC, 2016), as well as the water quality and
quantity requirements set forth in the New York State Stormwater Management Design Manual
(NYSDEC,2015). A Sediment and Erosion Control Plan has been prepared(see included in Appendix C
of this DEIS), which includes, at minimum, stockpile protection, inlet sediment control devices for
storm structure protection, silt fencing, and the construction and maintenance of a stabilized
construction entrance to prevent soil and loose debris from being tracked onto local roads. As required
as part of the GP-0-20-001 permit conditions,the project site would be inspected by a certified SWPPP
inspector a minimum of once per week during construction. The inspections would verify the
effectiveness and status of the aforementioned measures and identify any measures that need to be
maintained, replaced or modified to improve performance. Prior to filing the Notice of Termination
(NOT), the site would be inspected, and all permanent storm water systems would be cleaned of
accumulated debris, as necessary. As coverage under the GP-0-20-001 would be obtained, and the
aforementioned erosion and sedimentation control measures would be implemented as part of the
proposed action,no significant adverse impacts during construction are expected.
New York State Stormwater Management Design Manual
As noted in Section 2.2.1,the NYS Storm water Design Manual,(2015)provides structural standards for
SMPs that are acceptable for stormwater management and water quality treatment. In accordance
with the performance standards and SMPs of this manual,the proposed action would utilize leaching
pools of varying depths and French drains which includes the use of pervious gravel designed for a
two-inch rain event pursuant to§236-7.A of the Town Code. Furthermore,as mentioned above in this
section,the SPDES GP-0-20-001 would be obtained and a SWPPP would be prepared for the proposed
action in accordance with the design standards of the NYS Stormwater Design Manual,(2015).
New York State Standards and Specifications for Erosion and Sedimentation Control(Blue Book)
As noted in Section 2.2.1 of this DEIS,the New York State Standards and Specifications for Erosion and
Sedimentation Control,Blue Book(November 2016)provides standards and specifications for erosion
and sediment control practices for the development of Erosion and Sediment Control Plans as part of
87
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
the SPDES General Permit.As explained and excerpted from Section 2.1.2 of this DEIS,an Erosion and
Sediment Control Plan has been prepared (see Appendix C of this DEIS) and includes the following
erosion and sediment controls:
• Existing vegetation to remain would be protected(by installation of construction fence or other
approved means)and would remain undisturbed.
• Clearing and grading would be scheduled so as to minimize the extent of exposed areas and the
length of time that areas are exposed, graded, and stripped. Areas would be kept stabilized
through the use of temporary seeding as required. Seed mixtures shall be in accordance with
soil conservation service recommendations.In areas where soil disturbance has temporarily or
permanently ceased, temporary and/or permanent soil stabilization measures would be
installed and/or implemented within seven days.
• The length and steepness of cleared slopes would be minimized to reduce runoff velocities,and
runoff would be diverted away from cleared slopes.
• Sediment would be trapped on the site and not permitted to enter adjacent properties, public
roads or drainage systems.Sediment barriers would be installed along the limits of disturbance
prior to the start of construction and would be maintained until construction is complete.
• A stabilized construction entrance would be maintained to prevent soil and loose debris from
being tracked onto local roads.The construction entrance would be maintained until the site is
permanently stabilized.
• All stormwater would be retained on-site in accordance with§236-4 of the Town Code.Drainage
inlets installed on-site would be protected from sediment buildup through the use of
appropriate inlet protection.
• Dust mitigation would be implemented during construction,as follows:
o Water-down access ways,stockpiles,and material prior to loading.
o Limit on-site vehicular speeds to 5 mph.
o Soil stockpiles would be covered.
o All trucks carting loose material and construction debris would be covered.
o A six-foot fence with filter fabric would be installed around the northern and western
portions of the Construction Excavation Area.
• Sediment barriers and other erosion control measures would remain in place until upland
disturbed areas are permanently stabilized. Following permanent stabilization, paved areas
would be cleaned of soil and debris and drainage systems would be cleaned and flushed, as
necessary.
• Property maintenance of erosion control measures is to be performed as indicated by periodic
inspection and after heavy or prolonged storms. Maintenance measures are to include but are
not limited to cleaning of recharge basins,sediment traps and drywells, cleaning and repair of
sediment barriers, repair of berms and runoff diverters, and cleaning and repair of inlet
protection devices.
• To minimize material being brought onto local roads, the following measures would be
implemented:
o All trucks for Phase 1 would enter and exit the subject property utilizing the temporary haul
road connected to West Mill Road. The temporary haul road would include a stabilized
construction entrance to prevent soil and loose debris from being tracked onto local roads.
88
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
o All trucks for Phase 2 would enter and exit the subject property utilizing the main entrance
to SYC. The construction entrance would include a stabilized construction entrance to
prevent soil and loose debris from being tracked onto local roads.
o Following each day of sand and removal activities,the local streets would be swept nightly.
All erosion and sediment control measures would be routinely inspected and maintained such that no
sediment would be transported off-site.These erosion and sedimentation controls would minimize the
potential impacts associated with site development and construction activities.All proposed measures
are consistent with the Blue Book and no significant adverse impacts from erosion and sediment
controls would be anticipated.
Nationwide Urban Runoff Program(NURP)
The relevant recommendations from the NURP Study, as it pertains to stormwater runoff for the
protection of groundwater and surface water resources, are as follows along with the proposed
project's consistency therewith.
Groundwater Recommendations
• Continue to use recharge basins wherever feasible for the disposal of stormwater and the
replenishment of the groundwater.
Due to shallow groundwater conditions and limited land area,no recharge basins are proposed.
The proposed action would utilize on-site leaching pools and French drains which includes the
use of pervious gravel in four tributary areas to accommodate stormwater runoff. There is
adequate separation distance to groundwater for effective functioning of the drainage
infrastructure. In accordance with Chapter 236 of the Town Code,the proposed drainage system
has been designed for the two-inch rain event and has also considered off-site contributing areas
in the proposed design. Also, groundwater withdrawal from the site would decrease from
1,058± gpd to 218± gpd upon implementation of the proposed action due to the public water
supply connection. Overall,the proposed action is consistent with this recommendation as on-
site containment and recharge would be provided.
• Consider the use of in-line storage leaching drainage systems, or components thereof, as a
substitute for recharge basins in areas,other than parking lots,where maintenance will be assured
and where the value of the land for development purposes isgreater than the cost of installing and
maintaining the underground system.Storage leaching drainage systems should also be considered
for use where the installation of recharge basins is not feasible.
As indicated above,the proposed drainage system includes the use of leaching pools and French
drains which includes the use of pervious gravel to accommodate and recharge stormwater on-
site.As such,the proposed action is consistent with this recommendation.
89
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Prevent illegal discharges to drainage systems or recharge basins. Such discharges, which often
resultfrom improper storage or deliberate dumping orchemicals,must be controlled at the source.
All chemicals are currently stored in accordance with best management practices and permitted
under Article 12 of the SCSC. No changes to chemical storage nor chemical storage volumes are
anticipated as part of the proposed action.There would be no discharge to drainage systems.
Surface Water Recommendations
• Preclude any additional direct discharge of stormwater runoff into surface waters, using all
available means for detention and/or recharge to reduce bacterial loads.
The proposed drainage plan includes on-site structural (i.e., on-site leaching pools) and non-
structural (i.e., pervious gravel) methods for stormwater containment. There would be no
discharge of stormwater to Mattituck Creek.
• Protect stream corridors from encroachment, so that the stream reaches that will become dry
because of the lowering of the water table due to sewering will always be available for stormwater
detention and recharge.
There is no sewering proposed as part of the proposed action. All sanitary waste would be
accommodated in two I/A OWTS such that recharge would continue, but effluent would be
treated to the standard of 19 mg/L. Also,groundwater withdrawal from the site would decrease
from 1,058± gpd to 218± gpd upon implementation of the proposed action due to the public
water supply connection. Finally,the proposed drainage plan would accommodate and recharge
stormwater from a land area of approximately 7.77 acres. Overall, the proposed action is
consistent with this recommendation.
Nonpoint Source Management Handbook
The relevant recommendations provided in the Nonpoint Source Management Handbook were
reviewed and a discussion of the proposed project's consistency therewith follows:
Chapter One-Land Use
• Limit the removal of natural vegetation and the creation of lawn areas.
Implementation of the proposed action would involve the clearing of 5.51±acres of the 17.27±-
acre forested area (Coastal Oak-Beech Forest/ Successional Southern Hardwood) and 0.54±
acres of meadow and brushland(Successional Shrubland).However, 1.67±acres of landscaped
area and groundcover would be created with native and/or adaptive, low-maintenance and
drought tolerant species to stabilize the slopes and enhance the visual screen of the subject
property from views to the north,west,and south.The remaining naturally vegetated area west
of the Project Area would remain undisturbed (i.e., 11.76±acres of forested area [Coastal Oak-
Beech Forest/Successional Southern Hardwood] and 10.29± acres of meadow/bushland
[Successional Shrubland]).
90
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The tree survey completed by LUES determined that within the Subject Property there were
2,408 trees (see Appendix N). Based on the site development plans prepared by the project
engineer and the tree survey completed,634 trees would be removed to construct the two boat
storage buildings,access roads,and Evergreen concrete retaining wall.As presented in Section
1.2.1, approximately 73.7 percent (1,774) of the total trees at the subject property would be
retained with 1,039 trees (43.1 percent) retained on the R-80 zoned portion of the subject
property and 735 trees (30.5 percent) retained on the M-11 zoned portion of the subject
property.Of the 2,408 total trees at the subject property,1,647 trees(38.2 percent)are classified
as Coastal Oak-Beech Forest and 12.7 percent of the Project Area's trees surveyed are classified
as large trees with diameters greater than 18 inches.However,66.8 percent)of the total Coastal
Oak-Beech Forest trees and 66 percent of the total trees with diameters larger than 18 inches
would be retained.As such,the proposed action is consistent with this recommendation.
Chapter Two-Stormwater Runoff
As excerpted from the Recommendations section of Chapter Two (pages 33-36),the following are
recommendations relevant to the site planning and design of a stormwater management system:
• Minimize grade changes and site clearing
• Retain native vegetation on steep slopes, in swales, on excessively drained sandy-gravelly soils,
on soils with a high content ofsilts,fine sands and clays,and in areas with a high-water table or
adjacent to surface waters.
• Avoid the use of paved surfaces such as parking lots and roadways where the presence of the
following conditions indicate potential problems:
o Severely sloped terrain;
o Flood plain areas;
o Existing swales
o Lowland areas,
o Depressions,kettleholes and
o Soil constraints listed as severe or moderate.
• Incorporate the following general stormwater controls checklist into the site design as needed:
o Reduce the extent of impermeable surfaces insofar as possible.
o Use swales and shallow depressions to collect stormwater on-site,wherever possible.
o Provide temporary on-site areas to receive stormwater runoff flows that are generated
by construction and other site development activities.
o Do not allow increased sediment resulting from construction or operational phase of
site development to leave the site or to be discharged into stream corridors, marine or
freshwater wetlands.
o Do not allow the dumping or filling of excess soil or other materials generated from site
development into swales and surface waters.
o Minimize the amount of soil area exposed to rainfall and the period of exposure. Cover
or plant exposed soils as soon as possible.
Upon implementation of the proposed action, the proposed grading program and design
would meet the existing grade at Buildings 7 and 8. Grading the area of disturbance to
Elevation 10 allows for the maximum incline the lifts can operate to move boats from
91
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Mattituck Creek to Buildings 9 and 10. The proposed action would retain all existing
woodlands west of the Project Area and to the east at the area of disturbance,634 trees would
be removed. The area landscaped vegetation would increase by 1.67± acres from existing
conditions of 0.24± acre to 1.91± acres. The proposed development would also incorporate
stone blend pavement in the proposed access routes in lieu of impermeable pavement.
Sedimentation and erosion control measures would be employed during construction in
accordance with the Erosion and Sediment Control Plan that has been prepared(see Appendix
C).As indicated on the Erosion and Sediment Control Plan,erosion and sedimentation controls
would be undertaken prior to and during construction and would include, at minimum,
stockpile protection, minimizing the extent and duration of exposed areas, installation of
sediment barriers and sediment traps (silt fencing),and the construction and maintenance of
a stabilized construction entrance to prevent soil and loose debris from being tracked onto
local roads. All erosion and sediment control measures would be routinely inspected and
maintained such that no sediment would be transported off-site. These erosion and
sedimentation controls would minimize the potential impacts associated with site
development and construction activities to ensure proper function.
There are also recommendations for stormwater management during site development(pages 43-
52). Relevant to the proposed action are the following recommendations:
Natural Vegetation
• Use natural vegetation as an important nonstructural alternative in the control ofstormwater
runoff and erosion/sedimentation.
• Stabilize exposed slopes during and after construction,by using temporary and/or permanent,
structural or nonstructural stabilization measures.
As discussed above,erosion and sedimentation controls would include,at minimum,stockpile
protection, minimizing the extent and duration of exposed areas, installation of sediment
barriers and sediment traps (silt fencing), and the construction and maintenance of a
stabilized construction entrance to prevent soil and loose debris from being tracked onto local
roads. As discussed in Section 2.1.2,the soil cut proposed for the Evergreen concrete retaining
wall would not extend horizontally onto the property of the nearest resident,5106 West Mill
Road and slope stability would not be a concern to nearby properties.Additionally,regarding
the retaining wall, the soil design parameters are suitable based on the characterization of
Stratums 1,2 and 5. Furthermore,existing trees to be retained would be clearly marked with
silt fencing and/or tagging to prevent removal during the site clearing phase.
In-Line Storage(Nationwide Urban Runoff Program)
• Use an in-line storage system for the collection of stormwater runoff from parking lots and
roadways.
In accordance with the above recommendations, the Grading and Drainage Plan has been
prepared (see Appendix C) and includes the installation of leaching pools and French drains
which includes the use of pervious gravel as stormwater management methods in the Project
92
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Area. Four tributary areas are proposed to be constructed within the area of disturbance and
capture stormwater runoff from the proposed buildings and the roof of Building 8. The
drainage areas would be graded to convey stormwater to inlet structures. Stormwater
management in the areas of Buildings 1 through 6 would remain the same as under existing
conditions.
Soil and Slope Stabilization Measures
• Use stabilization techniques to prevent erosion.
Slopes disturbed as a result of the proposed action would be stabilized with the retaining wall
and vegetation of the retaining wall and upland area. Although extensive grading would be
required for the proposed action, the above measures would adequately protect the slopes
from erosion and correct existing slope instability due to unconsolidated materials.
Based on the above,the proposed action would be consistent with these recommendations.
Chapter Three-On-Site Systems
• Follow County Health Departmentguidelines.
The proposed action has been filed with the SCDHS for Article 6 permitting. As such, the
proposed systems (I/A OWTS)would be designed and installed in accordance with Article 6
as well as Article 19 of the SCSC.
Chapter Five-Fertilizer
• Retain as much of the natural vegetation of the site as possible. Minimize grade changes and
site clearing.
• Use native plants for the planting of areas that have been disturbed by grading. Consider the
use of alternative types ofgroundcover and other plant materials to avoid or reduce lawn area
and the consequent need for fertilizer applications,extensive watering and maintenance.
Upon implementation of the proposed action, the area of forested area (Coastal Oak-Beech
Forest/Successional Southern Hardwood) on the overall subject property would decrease
from 17.27±acres to 11.76±acres(i.e.,a decrease of 5.51±acres)and the area of meadow and
brushland (Successional Shrubland) by 0.54± acre (from 10.83± acres to 10.29± acres). As
indicated on the Proposed Landscape Plan (see Appendix C) and discussed in the Ecological
Report in Appendix N, 8.13 acres within the M-II zone (51.4 percent) will be maintained as
natural vegetation comprised of Coastal Oak-Beech forest and Successional Southern
Hardwood forest. Additionally, 1.67± acres of plantings and landscaping, inclusive of the
Evergreen concrete retaining wall plantings,is proposed.The proposed landscaping would be
native, drought-tolerant plant species that would not require regular maintenance with
fertilizers or pesticides. Proposed plantings include evergreen trees (Pitch Pine [Pinus
Rigida]), shrubs (Lowbush Blueberry [Vaccinium angustifolium] and Bayberry [Myrica
Pensylvanica]), small trees (Staghorn Sumac [Rhus Typhina], and Shadbush [Amelanchier
canadensis]), and a variety of grasses/groundcover (Switchgrass [Pacincum virgatum],
93
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Virginia Creeper [Parthenocissus quinquefolia], Common Milkweed [Asciepias syriaca], and
Groundsel Bush [Baccharis halimifolia]). In addition to the proposed landscape program, to
mitigate the removal of approximately 634 trees,approximately 135 trees would be planted
A total of pproximately 86 Pitch Pine trees will be established in a 27,333 SF planting area
along the new forest edge along with shrubs and groundcover, and 40 small trees, such as
staghorn sumac and shadbush, on the proposed retaining wall. An additional nine (9) Pitch
Pine would be planted in the lower building area adjacent to the LPG tanks. In addition,the
Applicant will contribute 50 native trees (10-gallon container typical 1-inch caliper, 5-6 feet
tall)for installation at high-priority sites with the Town of Southold,as identified by the Town
Tree Committee,to enhance and beautify public grounds.
Wetlands and Surface Waters
This subsection evaluates the proposed project's consistency with the relevant standards and
regulations that apply to the proposed development or components thereof. Additionally, the
potential impacts to wetlands and surface waters are also included herein. However,it is important to
restate the Applicant's commitment to Mattituck Creek through its involvement with CCE in the
shellfish restoration program located at SYC.
As indicated in Section 1.1.2 of this DEIS, SYC is a designated host for the CCE Marine Program for
shellfish restoration,which includes housing FLUPSY units in dockside areas that are used by CCE for
shellfish harvesting. SYC has committed to being a FLUPSY host and assist in the funding of the
program on its property through 2030. According to CCE,the Mattituck Inlet has proven to be the best
location for regrowth in the Town of Southold and the FLUPSY site at SYC is integral to shellfish
restoration on Long Island. Based on SYC's commitment to the CCE Marine Program,it is of importance
to the Applicant that no activities on-site impact Mattituck Creek or Inlet.
Wetlands
New York State Environmental Conservation Law(ECL)Article 25-Tidal Wetlands
On January 31,2020,NYSDEC issued a Non-jurisdictional Determination for all activities landward of
the existing bulkhead and 10-foot contour and a Tidal Wetlands Permit (Permit No. 1-4738-
01843/00028)for all activities within the regulated adjacent area(Install two dry wells/leaching pools
and concrete retaining wall. Add French drain system to west side of existing one-story building. All
roadway and parking area material will be gravel only.All work must be done in accordance with the
plans prepared by Howard W. Young LLS last revised 11212020 and stamped by NYSDEC approved
113112020).
The Boat(Vessel) Study,appended in Appendix M and further discussed later in this section,required
an assessment of the existing wetland and marsh conditions at SYC and evaluated the potential impact
the proposed action would have on both resources. As indicated on Figure 17 in Appendix A, tidal
wetland vegetation is present in the southeastern portion of the subject property and Mattituck Creek
runs along the entire eastern boundary of the subject property. The wetland delineation was
completed in June 2017 as part of the NYSDEC Tidal Wetlands Permit application. There are no
activities proposed within the wetland areas and all regulated activities within NYSDEC's jurisdiction
94
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
have been approved. For those activities regulated under Chapter 275(Town Trustees Permit),which
is limited to the striping of parking and installation of 180±feet of French drains adjacent to Building
8,would be done so in accordance with Town regulations. As noted in the Boat(Vessel) Study and in
Section 2.2.1 of this DEIS,there are no seagrasses present nor is there a historic presence of eelgrass
in Mattituck Creek. Overall,based on the above,the proposed action would not result in any significant
adverse impacts to tidal wetlands,tidal marsh or seagrasses.
Chapter 275-Wetlands and Shoreline Wetland Permit Requirements for the Town of Southold
As discussed in Section 2.2.1, the Town Board regulates activities that could affect wetland areas,
including the following: (1)any freshwater wetland,tidal wetland,beach,bank,bluff,dune,flat,marsh,
swamp,wet meadow,bog,or vernal pool; (2)any creek,estuary,stream,pond,canal,or lake; (3)land
under water; (4)land subject to tidal action; (5)land within 100 feet of the areas listed above;and(6)
all town waters(§275-3 of the Town Code). A consistency analysis of the regulated activities with the
standards for the issuance of a permit is included below.
§275-12 Standards for Issuance of Permit
The Board of Trustees may adopt a resolution directing the issuance of a permit to perform
operations applied for only if it determines that such operations will not substantially:
A. Adversely affect the wetlands of the Town.
As shown on the Utility Plan (see Appendix C), land disturbance within 100 feet of the tidal
wetland boundary is limited to 180± linear feet of French drains that are five feet wide-by-
four feet deep on the southeast side of Building 8.The other modification within the regulated
tidal wetland area is the formalization of the existing gravel parking area currently used by
vehicles and for boat storage to implement striping.However,the striping would not result in
land disturbance and would remain gravel cover. The two proposed climate-controlled boat
storage buildings, Evergreen concrete retaining wall, four 2,000-gallon LPG tanks, and I/A
OWTS systems have been sited landward of the tidal wetlands. It is important to note the
construction of the proposed action does not include any in-water disturbance.Additionally,
as indicated above,a NYSDEC Tidal Wetlands Permit has been issued.
B.Cause damage from erosion,turbidity or siltation.
The proposed activities within 100 feet of the tidal wetland include striping of an existing area
currently used for parking and boat storage and installing French drains alongside an existing
building. It is the intent of SYC to clearly delineate its on-site parking and formalize on-site
stormwater management.All stormwater from the Project Area and off-site contributing areas
would be accommodated and recharged on-site. Furthermore, an erosion and sediment
control plan has been developed in accordance with Chapter 236 of the Town Code,the New
York State Standards and Specifications for Erosion and Sedimentation Control, Blue Book
(November 2016) and thus,there would be no impacts to Mattituck Harbor from erosion or
sedimentation. Overall, the proposed action would not cause damage from erosion,
sedimentation,or siltation and is consistent with this standard.
95
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
C.Cause saltwater intrusion into the freshwater resources of the Town.
As indicated above,activities within 100 feet of the regulated tidal wetland include striping of
an existing area currently used for parking and boat storage and installing French drains
alongside an existing building.Additionally,the proposed development includes a connection
to the public water supply such that on-site groundwater withdrawal from the existing wells
near Buildings 1 and 7 would be reduced from 1,058±gpd to 218±gpd.
It is further noted that as part of this DEIS,a Groundwater Modeling Report was performed to
evaluate the potential for saltwater intrusion. As summarized earlier in this section and as
excerpted from the Report included in Appendix L of this DEIS, by slightly increasing the
recharge across the area of the proposed Construction Excavation Area, the amount of
freshwater being received by the aquifer increases and in turn would have the effect of causing
the saltwater interface to migrate seaward and downward. Under the excavated site
conditions,the water table is expected to rise 0.01 feet due to the increased recharge. As such,
saltwater intrusion is not expected to occur as a result of the proposed site excavation, but
just the opposite is predicted. Also,two existing water supply wells are going to be removed
from service as the entire site would be connected to the SCWA for domestic water supply and
the two remaining on site wells will be converted to irrigation wells. Post-development,the
two wells would have overall less water consumption then their combined existing condition.
The net effect is again less water withdrawal from the aquifer and a benefit with regards to
the saltwater interface position beneath the site. As such, the proposed action would not
result in saltwater intrusion and is consistent with this standard.
D.Adversely affect fish, shellfish or other beneficial marine organisms, aquatic wildlife and
vegetation or the natural habitat thereof.
As indicated above,activities within 100 feet of the regulated tidal wetland include striping of
an existing area currently used for parking and installing French drains alongside an existing
building. There would be no expected impact of these activities on the aquatic life or
vegetation. It is important to restate that SYC funds and hosts the CCE FLUPSY units that are
used for shellfish harvesting, The Applicant's work with the CCE Marine Program has enabled
approximately 6 million clams to be grown at the marina over the last year (and over 10
million in the last four years) and each of the existing eight FLUPSY's allows 600 gallons of
water per minute(4,800 gallons of water per mintue total)to pass through millions of juvenile
clams leading to improved water quality(see CCE correspondence in the Boat[Vessel] Study
in Appendix M).A minimum of approximately 1.5 million clams per year are expected to be
harvested from the FLUPSY units at SYC.Once harvested,the clams are relocated to a NYSDEC-
designated sanctuary site pursuant to the LISRP. According to CCE, the Mattituck Inlet has
proven to be the best location for growth rate in the Town of Southold and the FLUPSY site at
SYC is integral to shellfish restoration on Long Island. It is the intent of the Applicant to
continue this successful program at the SYC facility. Therefore, the proposed action is
consistent with this standard.
96
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
E.Increase the danger of flood and storm-tide damage.
The subject property is currently bulkheaded and all proposed development is landward of
existing buildings. As indicated above,activities within 100 feet of the regulated tidal wetland
include striping of an existing area currently used for parking and installing French drains
alongside an existing building. Additionally, the proposed FFE for the new buildings is 10±
feet,which complies with the adjacent flood zone to the east, which is Zone AE: Base Flood
Elevation(BFE) 8.
The potential impacts of sea level rise have also been evaluated in Section 2.3 of this DEIS and
no significant adverse impacts from flooding are expected.As indicated earlier in this analysis,
the proposed action includes the installation of on-site drainage controls to accommodate and
recharge stormwater on-site. Additionally, the land disturbance within 100 feet of the
regulated tidal wetland area would not alter the existing grade and would not increase the
likelihood of flooding. Land disturbance within 100 feet of the tidal wetland boundary is
limited to 180± linear feet of French drains that are five feet wide-by-four feet deep on the
southeast side of Building 8 and striping to formalize the existing gravel parking area
currently used by vehicles and for boat storage.Therefore,the proposed action has mitigated
the potential impact of flood and storm-tide damage and is consistent with this standard.
F.Adversely affect navigation on tidal waters or the tidal flow of the tidal waters of the Town.
The proposed action would be constructed at an existing operational yacht center and marina,
with no activities proposed within Mattituck Creek. As indicated above,activities within 100
feet of the regulated tidal wetland include striping of an existing area currently used for
parking and boat storage and installing French drains alongside an existing building. None of
these activities will affect navigation or tidal flow on Mattituck Creek. Therefore,the proposed
action complies with this standard.
G.Change the course of any channel or the natural movement or flow of any waters.
In-water work is not proposed as part of the proposed action.Routine maintenance conducted
by the USACOE for Mattituck Harbor would continue without any impact from the SYC
operation or proposed expansion. Therefore, the proposed action is consistent with this
standard.
H. Weaken or undermine the lateral support of other lands in the vicinity.
The regulated activities within 100 feet of the tidal wetlands would have no impact on
weakening or undermining the lateral support of other lands. Therefore,the proposed action
is consistent with this standard.
I.Otherwise adversely affect the health,safety and general welfare of the people of the Town.
The regulated activities within 100-feet of the tidal wetlands would have no impact on the
health, safety and general welfare of the community. Therefore, the proposed action is
consistent with this standard.
97
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
J.Adversely affect the aesthetic value of the wetland and adjacent areas.
The proposed striping of gravel-surfaced areas currently used for parking and installation of
French drains adjacent to Building 8 would have no impact on the aesthetic value of the
wetland and adjacent areas. Therefore,the proposed action is consistent with this standard.
Overall, based on the above analysis, the proposed regulated activities would have no significant
adverse impacts to the adjacent tidal wetlands. The proposed installation of French drains would
actually result in beneficial impacts by providing a method of stormwater runoff control where none
currently exists.
Surface Waters
The Amended Final Scope required that this DEIS evaluate the potential impacts to surface waters in
a "Boat (Vessel) Study." Accordingly, a Boat (Vessel) Study has been prepared and is included in
Appendix M of this DEIS. The Boat(Vessel)Study identifies the existing and projected changes in boat
traffic within the Mattituck Creek and Inlet, the existing and potential surface water quality impacts
associated with the projected changes in boat traffic, and the monitoring and enforcement protocols
that are in place.A summary of the Boat(Vessel)Study follows.
Projected Change in Boat Traffic
As indicated in Table 1 of the Boat (Vessel) Study, based on SYC data and publicly available data,
approximately 2,000 boats, yachts, commercial fishing vessels, government/public vessels, personal
watercrafts, and kayaks and Stand-Up Paddleboards (SUPS) are docked or use Mattituck Creek
annually.It is estimated that approximately 547 boats are active in Mattituck Harbor on a peak season
day.
The proposed action includes approximately 88 yachts arriving to SYC in the fall for storage and
departing in the spring for boating season. The yachts will arrive to the facility at the close of boating
season (i.e.,September-December),hauled from the water via the 85-ton travelift and transported to
the heated storage buildings,and the same boats will be removed from storage,returned to Mattituck
Creek via the travelift,and exit Mattituck Inlet in the beginning of the boating season(i.e.,April-June).
Given a 12-week timeframe for entry to storage in the Fall and the same timeframe to remove boats
from storage in the Spring,this equates to an average of approximately seven (7) boats per week or
between one two boats per day. SYC would maintain a schedule for all boats entering or leaving the
storage facility.
It is noted that the existing uses and operations would not change upon implementation of the
proposed action. SYC would still offer dockage/boat slips, fuel station, sewage pump-out services,
marine travelift system, dry dock and interior storage of boats (but with heated indoor storage for
larger yachts post-development), boat maintenance, repair, and detail services, and boat
painting/antifouling services to all yachts utilizing the facilities. Furthermore, an increase in boat
traffic is not expected to result in significant adverse impacts to surface waters as all boats are to be in
operable condition,with no discharges of gray or black water from holding tanks,and no fuel leaks or
98
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
heavy exhaust;and also subject to monitoring and enforcement of the USCG and Town of Southold Bay
Constable(see the Boat[Vessel] Study in Appendix M).
Mattituck Inlet Soundings and Tidal Range
The proposed action does not include any modification to Mattituck Harbor that would alter tidal flow
and does not introduce a vessel length that is currently not using the Harbor today. Therefore,the use
of Mattituck Harbor for boat travel to SYC for the purpose of winter storage does not require a
water/tidal flow modeling/study.
Review of NOAA data (https://tidesandcurrents.noaa.gov),as well as an independent Mattituck Inlet
Survey with soundings at low tide that was performed by H&L Contracting LLC,indicates that the tidal
range for Mattituck Creek is approximately 5.0 feet(see Sections 1.2.1 and 1.2.2 in the Boat [Vessel]
Study,and Figures 2 and 3 in the Boat[Vessel] Study).At low tide, depths average between 9-to-10±
feet. At high tide, the average depths range from approximately seven (7) to 14 feet outside of the
channel and 14-to-15±feet within the channel. The SYC marina accommodates boats and yachts 18-
to-133± feet in length,which can all safely navigate Mattituck Creek. As indicated earlier and in the
Boat(Vessel) Study,the average yacht size to be stored under the proposed action would be 60±feet.
As such,the projected 88 vessels to be stored,at an average length of 60 feet and a maximum of 86 feet
in length,can be accommodated without impacts to the Inlet or Creek.
Mattituck Harbor Dredging
As presented in Section 1.1.1 of the Boat (Vessel) Study and discussed in Section 1.1.1 of this DEIS,
Mattituck Harbor is a designated Federal Navigation Channel under the Rivers and Harbors Act of 1896
(29 Stat. 202), modified in 1935 (P.L. 74-409) and 1964. This designation gives authority to the
USACOE to maintain the navigability of the channel. The most recent dredging of Mattituck Harbor
was completed in 2014. Prior to this, maintenance dredging for the channel was completed in 2004
and in 1996,a west jetty rehabilitation project was completed. The proposed action does not include
or require any in-water work as the proposed yacht size is able to safely navigate the Inlet and Creek.
Marine/Environmental Specifications for Boats/Yachts
As indicated in the Boat (Vessel) Study, the U.S. Environmental Protection Agency (EPA) regulates
exhaust and evaporative emissions for non-road spark-ignition engines, vessels, and equipment (73
FR 59034,October 8,2008).The U.S.EPA also regulates emissions from marine compression-ignition
(diesel) engines installed in marine vessels, ranging in size and application from small recreational
vessels to large ocean-going vessels under various federal rules (including 40 CFR 1042 [Tier 3 and 4
engines], 40 CFR 1068 [General Compliance], 40 CFR 89 [Tier 1 and 2 below 37 kW], and 40 CFR 94
[Tier 1 and 2 at or below 37 kW]). The new vessels that are expected to utilize SYC for storage would
be expected to comply with the aforementioned federal regulations for the engine types on board.
Mattituck Harbor Water Quality
The Amended Final Scope requires the Applicant to evaluate the potential impact of the proposed 88
vessels on surface water quality for Mattituck Creek, Publicly available surface water data from the
99
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
SCDHS Bureau of Marine Resources as well as the Suffolk County SWP and Long Island Sound Study
(LISS)were reviewed to assess how water quality trends in Mattituck Creek compared to eastern Long
Island Sound and if there was any correlation to poor water quality and an increase in maritime traffic
since SYC began operating at the subject property in 2016.
Surface water quality data within Mattituck Creek is collected by the SCDHS Bureau of Marine
Resources. Through coordination with SCDHS, PWGC obtained water quality data that was collected
between 2000 and 2020, as part of the marine monitoring program (SCDHS, 2021). Surface water
quality monitoring data was provided by the SCDHS Office of Ecology,Yaphank,N.Y.) (see Appendix B
in the Boat[Vessel] study).As shown in Figure 5 of the Boat(Vessel) Study included in Appendix M,
Bay Station 055320 (Latitude 41.009,Longitude-72.548583)is the closest marine monitoring station
to SYC,located 155±feet northeast of the subject property. As SYC purchased the subject property in
the fall of 2016,PWGC reviewed the data reported for Bay Station 055320 for an eight-year time period
(2012-2020)to identify conditions prior to and after SYC acquired the property.
As summarized in Table 5 of the Boat(Vessel)Study,the water quality observed at Bay Station 053320
since SYC purchased the subject property in 2016 is consistent with the overall water quality of Long
Island Sound. The seasonal fluctuations in Nitrogen, Dissolved Oxygen, and Chlorophyl-a are
comparable to those in Long Island Sound and overall water quality was identified as fair to good based
on conditions set forth in the LISS. Overall,the water quality of Mattituck Harbor between 2012 and
2020 is comparable to that of eastern Long Island Sound.Accordingly,SYC has not contributed to water
quality degradation in Mattituck Harbor.
Review of the Suffolk County SWP was also performed to address the impact of nitrogen loading on
the overall health of Mattituck Creek. Lower levels of Dissolved Oxygen and HAB events indicate the
water quality of Mattituck Creek trends towards poor. However, these water quality issues are not
attributed to the maritime industry but to stormwater runoff and warming waters. As the proposed
action includes a drainage plan that complies with the Town's stormwater management regulations,
no significant adverse impacts associated with stormwater runoff would be expected.
Another key indicator of water quality is the state of the shellfish harvests. As discussed in Section
2.2.1, Mattituck Creek is seasonally uncertified for shellfishing from May 1 to December 31 by the
NYSDEC. These seasonal closures have occurred since the 1980s. Based on historic information
reviewed, the primary reasons for these closures are the presence of saxitoxins and HABs such as
(Aureococcus anophagefferens), two types of red tides (Alexandrium fundyense and Dinophysis
acuminata), and rust tide (Cochlodinium polykrikoide).26 The HAB events are closely related to
increasing water temperatures and occur almost annually in Long Island's waters. To assist in
improving water quality on Mattituck Creek,SYC was chosen by CCE to serve as a FLUPSY host.
Based on the data and sources reviewed,the boating industry was not identified as a contributor to
the degradation of surface water quality for Mattituck Creek or Long Island Sound. The proposed
action would introduce 88 yachts to Mattituck Creek over a 12-week period(seven[7]yachts per week
or one-to-two per day when averaged over the 12-week period for receiving boats or hauling back
into Mattituck Creek). As all yachts are required to meet both state and Federal discharge and engine
exhaust standards and the No Discharge Zones would prohibit yachts from dumping sewage into
26httpswww.newsday.com lon -island suffolkldec shuts-shellfish-harvesting-in-southold-1.3644504
100
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Mattituck Creek,there would be no associated impacts to the waters of Mattituck Harbor.Additionally,
the proposed action includes several measures to protect surface water quality, including a SWPPP,
upgrades to the existing sanitary systems to I/A OWTS, and post-development drainage controls to
accommodate and recharge stormwater on-site.
As the proposed action would introduce an imperceptible number of new boats and yachts to Mattituck
Creek and Long Island Sound and SYC would implement measures to protect surface water quality on-
site,the proposed action would not introduce new risks to surface water quality.
Tidal Wetlands and Marsh
As indicated in the Boat (Vessel) Study and earlier in this section, although mapped NYSDEC Tidal
Wetlands are located on the subject property, the proposed action would not disturb or alter any
wetland vegetation. Additionally,the NYSDEC has reviewed the proposed plan and a Tidal Wetlands
Permit was issued on January 31,2020.
The proposed striping to formalize parking stalls and the proposed French drains both on the
southeast side of Building 8 are within 100 feet of NYSDEC mapped tidal wetlands and therefore
subject to review by the Town of Southold Town Trustees pursuant to §275-3(C)(5). The Town
Trustees jurisdiction is limited to 100 feet from tidal wetlands and their review of the proposed action
is therefore limited and does not include the landward uses proposed. Furthermore, the proposed
action is compliant with all Parts set forth at§275-12(Standards for Issuance of Permit).The proposed
improvement of the stormwater management system would have beneficial impacts on the tidal
wetlands as the French drains would capture and recharge stormwater from the Project Area and off-
site contributing areas.Finally,as there are no seagrasses or eelgrass in Mattituck Creek,no significant
adverse impacts would result. Overall, based on the above, the proposed action would not result in
any significant adverse impacts to tidal wetlands,tidal marsh or seagrasses.
Monitoring and Enforcement
Both the US Coast Guard and the Town of Southold Bay Constable are responsible for monitoring and
enforcement of activities within Mattituck Harbor.Based on the proposed use(i.e.,construction of two
boat storage buildings and associated appurtenances),the Town's request for the Applicant to devise
methodology to police and monitor water quality suggests a much more intense use. The scope of the
proposed action does not involve improvements within Mattituck Creek.The addition of 88 yachts in
Mattituck Creekwould be imperceivable to existing users as the storage and launch of the yachts would
take place over a 12-week period.The yachts would arrive to the facility at the close of boating season
(September-December)and the same yachts would be launched again in the beginning of the boating
season (April - June).Given a 12-week timeframe for entry to storage in the Fall and the same
timeframe to remove boats from storage in the Spring, this equates to an average of approximately
seven (7) boats per week or between one two boats per day. SYC would maintain a schedule for all
boats entering or leaving the storage facility. As concluded in the Boat(Vessel)Analysis,the measures
in place to police Mattituck Creek with regards to water quality and boat traffic safety are sufficient to
accommodate the proposed action.Therefore,the proposed action would not require the development
of additional policing methods to address the threat of water quality and boat traffic safety would not
be needed.
101
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Based on the analyses set forth in the Boat(Vessel)Study(see Appendix M),the proposed action would
not contribute to water quality degradation and would integrate appropriate measures aimed at
improving water quality of receiving waters such as the inclusion of I/A OWTS systems and proposed
stormwater management system on site.
Surface Waterbody Classification
Mattituck Creek is classified as a Class SA saline surface water, according to NYSDEC Environmental
Resource Mapper,27 as noted in Section 2.2.1 of this DEIS. Following implementation of the proposed
action,the classification of Mattituck Creek would remain Class SA(see Figure 19 in Appendix A).The
proposed boat storage buildings would enable the Applicant to continue to support the local
recreational boating industry on Mattituck Creek by providing winter storage for larger boats up to 86
feet in length.Additionally,the Applicant would continue to provide space for commercial fishermen
to dock their boats and provide maintenance services for the boats, as necessary. The FLUPSY units
would continue to increase the productivity of Mattituck Creek and support local shell fishing
initiatives. Furthermore, the proposed action would not alter surrounding land uses that provide
recreational and fishing opportunities along Mattituck Inlet and Mattituck Creek.
Significant Coastal Fish and Wildlife Habitat
Mattituck Creek is located to the adjacent east of the subject property and Mattituck Inlet is located to
the north of the subject property.As noted in Section 2.2.1 of this DEIS,these surface waters,identified
as the Mattituck Inlet Wetland and Beaches, are NYSDOS designated Significant Coastal Fish and
Wildlife Habitat.The proposed action would occur outside the designated habitat and would not affect
any significant fish or wildlife communities. Furthermore, the proposed action would implement a
comprehensive stormwater management program to capture and recharge all stormwater on-site
such that no runoff would overflow into Mattituck Creek or onto surrounding properties.The proposed
action would not affect the Applicant's participation in the Town's Pump-Out program; nor would it
affect the existing CCE Marine Program that occurs on-site.
It is noted that the NYSDEC issued a Tidal Wetlands Permit for the proposed action. The Applicant
would abide by the conditions in the issued permit as well as the general conditions of NYSDEC tidal
wetlands permits.The Applicant will integrate all conditions set forth in the NYSDEC permit prior to
and during construction of the proposed action.
No significant adverse impacts to tidal wetlands located on-site or within Mattituck Creek are expected
to result from the proposed action. No physical disturbance to tidal wetlands is proposed, and the
project provides for mitigation measures that would contribute to potential surface water quality and
habitat quality improvements in Mattituck Creek, such as new I/A OWTS's and new stormwater
drainage infrastructure.
Based on the foregoing, the proposed action would not have a significant adverse impact on the
adjacent Significant Coastal Fish and Wildlife Habitat.
27ht_lt Aso//aisservlces.dec.noV is erm/
102
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
2.2.3 Proposed Mitigation
The proposed project includes the following mitigation measures that effectively minimize or eliminate any
potential adverse impacts:
• The proposed new and replacement systems with I/A OWTS technologywill reduce the effluent
nitrogen concentration on site,in accordance with Article 6 and Article 19 standards of the SCSC.
• The proposed action includes the installation of a stormwater management system that will
contain and recharge stormwater from a two-inch rain event from the Project Area and off-site
contributing areas. The proposed stormwater management controls will include both structural
infiltration (on-site leaching pools) and non-structural methods (pervious gravel) for
infiltration.
• The proposed stone blend pavement will reduce the area of impervious surface on the site while
also providing for effective infiltration for stormwater.
• The proposed connection to the public water supply will reduce on-site groundwater
withdrawal and will offer the ability to connect to the public water system to neighboring
property owners.
• The proposed Erosion and Sediment Control Plan will include,at minimum,stockpile protection,
inlet sediment control devices for storm structure protection,silt fencing,minimizing the extent
and duration of exposed areas, and the construction and maintenance of a stabilized
construction entrance to prevent soil and loose debris from being tracked onto local roads. Prior
to construction,a SWPPP will be prepared and will address additional items during construction
such as concrete washout areas, temporary stabilization, and erosion and sediment
maintenance and inspection procedures.
2.3 Flooding and Climate Change
The Amended Final Scope required the potential significant adverse impacts of climate change, sea-
level rise,and flooding on the proposed action to be assessed in two separate impact categories of the
Natural Environmental Resources analysis of the DEIS - Impacts on Water Resources and Impact on
Flooding.To avoid redundancy and present a cohesive analysis in this DEIS,the required analyses set
forth in both the Impacts on Water Resources and Impact on Flooding regarding climate change,sea-
level rise,and flooding have been combined into this section.
2.3.1 Existing Conditions
Floodplains
According to the FEMA Map Panel ID:36103C0143H(see Figure 22 in Appendix A),the overall subject
property is mapped as follows:
103
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• The eastern portion of the subject property that is currently developed with the operating
marina Buildings 2, 5 through 8 is located within the SFHA Zone AE, which is the 100-year
flood zone,with a BFE of 8 feet(see Figure 22 in Appendix A). Areas in Zone AE are subject to
inundation by the one percent annual chance (or 100 year)flood.
• The northeast portion of the subject property that is developed with Building 3 and area to
the south of Building 8 are situated within Zone X:0.2 percent annual chance or 500-year flood
zone.
• The existing residential structure (Building 1) and all areas landward of Elevation 8.0 are
within Zone X:Area of Minimal Flood Hazard(i.e.,area is outside a SFHA).
Climate Change
The New York State Legislature passed the 2014 Community Risk and Resiliency Act(CRRA)to ensure
that best available data is considered when evaluating and predicting the potential impact of climate
risks and extreme weather events associated with sea-level rise, storm surges, and flooding on
development or planning initiatives when considering the expenditure of State monies,facility-siting
regulations are developed, and the issuance of State permits. By the year 2100, it is anticipated that
the 10- year storm could occur every three years. The CRRA outlined five provisions to ensure an
adequate assessment of a project's risk to sea-level rise is completed prior to being granted approval
by a State agency.The five provisions include:(1)the adoption of official sea-level rise projections; (2)
consideration of sea-level rise,storm surge,and flooding in facility siting,permitting,and funding; (3)
Smart Growth Public Infrastructure Policy Act criteria; (4) model local laws concerning climate risk;
and (5) guidance on natural resiliency measureS.28 The subsequent section discusses the manner in
which NYSDEC addresses sea level rise and the sea level rise projections formulated by the New York
State Energy Research and Development Authority(NYSERDA).
Sea Level Rise(6 NYCRR Part 490 Regulations)
CRRA required NYSDEC to adopt science-based sea-level rise projections into regulations by January
1, 2016. NYSDEC adopted science-based projections in 6 NYCRR Part 490 - Projected Sea-level Rise.
The intent of Part 490,as excerpted from§490.1-Purpose,is:
"[t/his Part establishes science-based projections ofsea-level rise for New York State's tidal coast,
including the marine coasts of Nassau,Suffolk and Westchester counties and the five boroughs
of York City,and the main stem of the Hudson River,north from New York City to the federal
dam at Troy.
Additionally,the applicability of this Part,as laid out in§490.2-Applicability,is such that:
"[t/his Part applies to consideration ofsea-level rise by the Department,other State agencies,and
applicants for relevant permits, approvals, and funding in the context of programs specified in
the Community Risk and Resiliency Act."
28 WW htW_S-// WdeC.ny.gOVJenerg_tID4 113.htMI
y _
104
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The sea level rise projections were based on the 2011 CIimAID Report(CIimAID data)published by the
NYSERDA,which took into consideration 16 global climate models that were then synthesized to apply
to New York State. NYSERDA's role in sea level rise projections in New York State are discussed later
in this section of the DEIS.Utilizing the CIimAID data allowed for a more realistic assessment of New
York State's vulnerability to sea level rise that would otherwise be absent from more global models
available.29
As set forth§490.3,there are varying confidence levels in the data:
• Low projection - The amount of sea-level rise that is consistent with historical rates of sea-level
rise and is very likely (the 10th percentile of CIimAID model outputs) to be exceeded by the
specified time interval.
• Low-Medium projection - The amount of sea-level rise that is likely (the 25th percentile of
CIimAID model outputs)to be exceeded by the specified time interval.
• Medium projection - The amount of sea-level rise that is about as likely as not(the mean of the
25th and 75th percentiles of CIimAID model outputs) to be exceeded by the specified time
interval.
• High-Medium projection - The amount of sea-level rise that is unlikely (the 75th percentile of
CIimAID model outputs)to be exceeded by the specified time interval.
• High projection - The amount of sea-level rise that is associated with high rates of melt of land-
based ice and is very unlikely(the 90th percentile of CIimAID model outputs) to be exceeded by
the specified time interval.
These projections were completed for the following specific geographic regions of New York State:
Mid-Hudson Region, New York City/Lower Hudson Region, and Long Island Region. The table below
is excerpted from§490.4-Projections provides the projections for the Long Island Region:
Table 16-6 NYCRR Part 490 New York State Sea Level Rise Projections:Long Island
Projection Low Low- Medium High- High
Medium Medium
Time 2020s 2" 4" 6" 8" 101,
Interval 2050s 8" 11" 16" 21" 30"
2080s 13" 18" 29" 39" 58"
2100 15" 21" 34" 47" 72"
To evaluate the projected change in sea level rise, a 30-year planning projection was considered as
three decades is a standard period of time to characterize the current climate, per World
Meteorological Organization(WMO).30 WMO indicates that climate is,"the"average weather"...defined
as the measurement of the mean and variability of relevant quantities of certain variables (such as
temperature,precipitation or wind)over a period of time....The classical period[to define climate]is 30
years."Therefore,this DEIS considers the medium confidence level(2050s)and its effect on the subject
29 http:Llw .nyserda.nveg0V/cli aid
30 htt s://ww. mo.int�pa es/grog cp ccl faos.a�hp# 1
105
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
property as that is a 30-year period from the existing conditions of the proposed action. As indicated
in Table 16,the medium projection for 2050 is 16 inches(1.33±feet) of sea level rise on Long Island.
Based upon available mapping provided by the NYSDOS,the current condition at SYC was compared
to sea level rise of 12 inches and 24 inches (see Figure 23 in Appendix A). As depicted in the figures,
sea level rise of 12 and 24 inches would not be expected to impact the property beyond the bulkhead
and MHW. As indicated on the Alignment Plan (see Appendix C), MHW at the subject property
coincides with the top of the bulkhead and was mapped at approximately 4.0±feet. Based onal6-inch
or 1.33± feet projection in the 2050s, MHW would be expected to increase to 5.3± feet AMSL. The
existing bulkhead ranges from 6.0±feet to 6.8±feet,and thus,would remain higher than MHW.
The existing building elevations are as follows:
➢ Bldg.2 FEE=9.6±feet
➢ Bldg.3 FEE=Range 8.9±feet to 9.3±feet
➢ Bldg.6 FFE=8.9±feet
➢ Bldg.7 FFE=7.7±feet
➢ Bldg.8 FFE=Range 7.3±feet to 7.4±feet
Based on the elevations,the 2050s projection would not be expected to impact the existing buildings.
Sea Level Rise with Storm Inundation(NYSERDA)
NYSERDA is a public benefit corporation in New York State with the mission to,"[a]dvance clean energy
innovation and investments to combat climate change,improving the health,resiliency,and prosperity of
New Yorkers and delivering benefits equitably to all."31 Specifically as it relates to climate change,
NYSERDA has published two ClimAID reports, one in 2011 and a revision in 2014, which detail the
temperature, precipitation, extreme events, and sea level rise projections for New York State, The
2014 report utilized the findings of the Coupled Model Intercomparison Project and Phase 5 (CMIP5)
climate models included in the Intergovernmental Panel on Climate Change's (IPCC's) Fifth
Assessment Report.32 Data analyzed using IPCC's method assessed variables that climate models could
not previously simulate,such as changes in ice sheet dynamics.33 NYSERDA subsequently revised its
sea level rise projection scenarios to now consider 35 climate models instead of the 16 climate models
utilized to calculate the projections in the 2011 report. Similar to the 2011 report from which the
CRRA criteria was developed and is discussed earlier in this section of the DEIS,the loth,25tb,75th,and
goth percentiles were considered for potential revision. The modeling concluded the sea level rise
projections for Long Island (Region 4-Montauk Point)would remain the same as those presented in
the 2011 ClimAID report and discussed earlier in this section of the DEIS.
NYSERDA has developed a Future Coastal Floodplain Mapper for Lower New York State (hereinafter
called "NYSERDA Mapper") to understand how the existing mapped floodplain could be modified in
31LItt _/_S./ .n W WW _Serda.n . OV About 32 ch-and-Develnnment-Technical-
Reports/Environmental-Research-and-Development-Technical-Reports Response-to-Climate-Change-in-
New-York
33httpj/tWWW'n _Serda.ny.ZOV CliMald
106
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
scenarios where 12, 18, 24, 36, 48, 60, and 72 inches of sea level rise are experienced under the
following storm conditions: 10-year, 50-year, 100-year, and 500-year. were formulated using data
available from historic storm event frequency and intenSity.34 The NYSERDA Mapper projections differ
from the data presented in the 2011 and 2014 ClimAID reports in that storm inundation is considered
to evaluate the future expansions of the floodplains when sea level rise is assumed.When analyzing
SYC's susceptibility to sea level rise using the NYSERDA Mapper,the median scenario from CRRA for
the 2050s was applied, 18 inches.
As indicated earlier in this section of the DEIS, Buildings 2, and 5 through 8, are located in Zone AE
(BEE 8), Building 3 is located in the 0.2 Annual Chance Flood Hazard. Building 1 (existing residential
structure) and the area upland of the currently developed marina buildings is in Zone X, an area of
minimal flood risk. Review of the NYSERDA Mapper under two storm scenarios were considered and
mapped: (1) 18 inches of sea level rise in the 2050s and a 10-year storm event; and (2) 18 inches of
sea level rise in the 2050s and a 100-year storm event.At a 10-year recurrence interval(see Figure 24
in Appendix A) with 18 inches of sea level rise (2050s), storm inundation could occur at existing
Buildings 2,7 and 8,and the eastern portions of existing Buildings 3 through 6 could be affected. The
existing Building 1 would be unaffected. At a 100-year recurrence interval(see Figure 24 in Appendix
A)with 18 inches of sea level rise(2050s),storm inundation could occur across the SYC property,with
Building 1 unaffected.
Groundwater Table Elevation
With sea level rise, the effects on coastal water tables are also important for consideration. As
described by the USGS Freshwater-Saltwater Interactions Along the Atlantic Coast - A Regional
Assessment of the Ground-Water Resources Program(2017),the landward and upward movement of
sea water into the coastal aquifers will raise groundwater and saltwater will infiltrate the drinking
water. Due to location of the subject property along the Mattituck Creek,sea level rise is expected to
have an equal rise in groundwater elevation (i.e.,a 16-inch rise in sea level would cause an equal 16-
inch rise in groundwater elevation).
As part of the Groundwater Modeling Report prepared by PWGC (see Section 2.2.2 and Appendix L of
this DEIS), the groundwater model was used to simulate a 16-inch increase in sea level and predict
what the groundwater conditions would look like on site should that occur. As indicated in Figure 20
of the Groundwater Modeling Report in Appendix L,the model predicts the groundwater beneath the
site to rise to an elevation of 3.05 feet AMSL(NAVD 88),or a rise of 1.31 feet(model predicted the post
excavated site groundwater elevation to be 1.74 feet AMSL(NAVD 88)without any sea level rise-see
Figure 19a of the Groundwater Modeling Report in Appendix L).
Based on the building elevations presented above,there would be no impacts to the current buildings.
Precipitation
After reviewing the Climate at a Glance:City Time Series available through the NOAA National Center
for Environmental Information, between 1940-2000 at New York (LaGuardia), which is also on the
34 httVS-14S erVICeS.n Serdan SLR Viewer default gov/- -- -----------/_
107
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
North Shore of Long Island along the Long Island Sound similar to the location of the proposed action,
the average monthly precipitation was 3.97±inches.Since 2017,there has been an overall downward
trend in annual precipitation.35 On Long Island,there is on average 3-to-4.5 inches of precipitation per
month.36 Annually, in Suffolk County,there is approximately 50 inches of precipitation. Precipitation
can include rain,freezing rain,sleet,snow,or hail.Groundwater recharge varies annually but has been
estimated to be anywhere between 50 to 75 percent of the annual precipitation.37
While there is a decrease in overall precipitation, there has been an increase in heavy precipitation
events. The LISS defines a heavy precipitation event as, `greater than 0.5 inches and 1 inch over a 24-
hour period."38 The LISS evaluated trends in heavy precipitation events from 1940 to 2020 and there
has been an 11 percent increase in 0.5-inch rain events and 17 percent increase in 1-inch rain events
during this time period. The potential impact of increased precipitation on the proposed action is
discussed in Section 2.3.2.
The potential impacts of floodplains, climate change and precipitation on the proposed action are
discussed in Section 2.3.2.
2.3.2 Potential Impacts
Floodplains
As indicated in Section 2.3.1 and shown on Figure 22 in Appendix A,the Project Area inclusive of the
proposed retaining wall, storage buildings, new and replacement I/A sanitary systems, drainage
infrastructure,and new pavement areas would occur entirely outside of a SFHA(i.e.,FEMA Flood Zone
X). However,the FEMA Flood Zone X is based upon the current elevations of the subject property. The
flood zone boundary between Zone AE: Elevation 8 feet BFE and Zone X: 500-year flood runs north-
south at Elevation 8 feet AMSL. Upon implementation of the proposed action,the Project Area would
reduce to Elevation 10 feet AMSL with the proposed cut and removal of material. The Zone X
designation is also based upon the current elevations of the Project Area (i.e., 7.10±feet to 46.1±feet
AMSL). Upon implementation of the proposed action, the Project Area elevation would decrease to
Elevation 9 feet AMSL.
It is noted that the adjacent mapped floodplain is Zone AE with BFE of 8 feet and building within this
area would require the lowest habitable building level (i.e., First Floor Elevation)to be placed at BFE
plus 2 feet or Elevation 10 feet. Accordingly, Buildings 9 and 10 would be constructed with an FFE at
Elevation 10 feet. Other proposed improvements, including new pavement, drainage infrastructure,
and I/A sanitary systems would be situated at approximately Elevation 10 feet AMSL.
Although the proposed action is outside of the mapped floodplain, the proposed storage buildings
would be compliant with NYS requirements for new construction in the Zone AE floodplain,as follows:
"When there is a base flood elevation available, the lowest floor including any basement, must be at or
3sLIttps://www.ncdc.noaa.gov cag/
36htt s wwweusgse ov centers water/science/long island precipitation-and-recharge? t-
science center ohects=0#gt-science center objects
37 United States Geological Survey,2013.
3£3 his: lonislandsounds��dv net ecosystem target-indicators/heavpreei itntion/
108
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
above the base flood elevation (plus two feet beginning in 2007). Elevation may be by means of properly
compacted fill,a solid slab foundation,ora "crawl space"foundation which contains permanent openings
to let flood waters in and out. Non-residential structures may be flood proofed in lieu of elevation."39
Other proposed improvements, including new pavement, drainage infrastructure, and I/A sanitary
systems would be situated at Elevation 9.40±feet AMSL.
As discussed later in this Section, the New York State Flood Risk Management Guidance for
Implementation of the Community Risk and Resiliency Act provides flood-risk management guideline
elevations for structures and identifies the following relevant considerations when developing in areas
of flood risk: siting of structures, design considerations, utilizing climate-informed science to guide
elevations, and structure-specific elevation guidelines. The proposed action includes siting the
proposed buildings at Elevation 10 feet AMSL,which complies with the adjacent flood zone of Zone AE
(BFE:8 feet) and floodplain development regulations of BFE plus 2 feet freeboard. The Town of
Southold has codified this requirement at§148-19 (A)(1-2). Additionally, the proposed stormwater
infrastructure and sanitary systems have been sited at similar elevations and there would be adequate
separation distances to groundwater for infiltration. Finally, as discussed later in this section, the
Project Area is not expected to be impacted by flooding due to sea level rise or storm inundation.
Impacts from sea level rise and storm inundation are concentrated at the bulkhead. Overall, the
proposed action has adequately considered recommendations set forth in the New York State Flood
Risk Management Guidance for Implementation of the Community Risk and Resiliency Act
The Town of Southold addresses floodplain development in Chapter 148 Flood Damage Prevention of
the Town of Southold Town Code. The proposed action is required to comply with the applicable
standards of Chapter 148-16 Standards for All Structures which includes: (A)the anchoring of new or
substantially improved structures within the SFHA pursuant to State and local anchoring laws for
resisting wind forces; (13)(1-3c) utilization of construction material resistant to flood damage and
minimizes flood damage,any enclosed areas below the lowest floor of a new,substantially improved
or existing structure within Zones Al-A30, AE, AH or Zone A with BFE data is to be used only for
parking,building,access or storage and is designed to automatically equalize hydrostatic pressure on
exterior walls and to allow the entry and exit of floodwaters(the design must be certified by a licensed
professional engineer or architect to ensure there's at least two openings affixed with louvers,valves,
screens,or other coverings which permit one square inch of opening for every square foot of enclosed
space subject to flooding and be located no higher than one foot above the lowest adjacent finished
grade SF);and(C)(1-4)new and replacement utilities must be located at or above the BFE or designed
to prevent water from entering or accumulating within the components during a flood, new and
replacement water supply and sanitary sewage systems must be designed to minimize or eliminate
the infiltration of water into the systems,and on-site waste disposal systems must be located to avoid
impairment or contamination from water during a flood.
As the Project Area is outside of a coastal high hazard area,the development would also comply with
the standards of Chapter 148-19 Nonresidential Structures(Except Coastal High Hazard Areas),which
include: (A)(1-2) locating the lowest floor two feet above BFE in new or substantially improved
nonresidential structures and floodproofing the building in areas below two feet above BFE for
structures within Zones Al-A30,AE,AH,or Zone A with BFE data.
39 httpl .dec.ny. ov lands 40576.ht 1.Accessed Ma 2021.
109
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
In accordance with Chapter 148-16 of the Town Code, the new and replacement I/A OWTS systems
would be designed to prevent the infiltration of floodwaters that could impact the components. No
other standards are applicable as Buildings 9 and 10 are located in Zone X.In accordance with Chapter
148-19,the proposed Buildings 9 and 10 would be constructed with a FFE of 10 feet AMSL,which is
two feet above the adjacent BFE of 8 feet.No other standards are applicable as Buildings 9 and 10 are
located in Zone X.The location of the proposed buildings upholds the Town's purpose of implementing
floodplain regulations which is to, "promote the public health, safety and general welfare and to
minimize public and private losses due to flood conditions in specific areas..."40 Therefore, coastal
flooding would not impact the proposed action.
Finally,the Amended Final Scope required an evaluation of the susceptibility of the final elevation of
the proposed landscaping to future inundation from nor'easters and other weather events. As
indicated on the Proposed Landscape Plan (see Appendix C), all proposed landscaping would be
incorporated into the proposed Evergreen concrete retaining wall. The bottom elevation of the
Evergreen concrete retaining wall would be approximately 20 feet AMSL and reach a maximum top
elevation of 50 feet AMSL. Accordingly,the proposed landscaping is located outside areas of potential
future flood inundation during storm events.
Overall,based on the proposed design,no flooding impacts are expected.
Climate Change
Sea Level Rise(6 NYCRR Part 490 Regulations)
As indicated in Section 2.3.1 of this DEIS, the potential sea level rise of 16 inches (or 1.33± feet) by
2050, following the CRRA medium projection, is considered a reasonable analysis based on the
definition of the projections as"amount of sea-level rise that is about as likely as not...to be exceeded
by the specified time interval."Under this scenario,MHW at the subject property would increase from
4.0±feet AMSL to 5.3±feet AMSL,and thus,would not affect the existing buildings or infrastructure.
Based upon available mapping provided by the NYSDOS,the potential condition at SYC was compared
to sea level rise of 12 inches and 24 inches (see Figure 23 in Appendix A). As depicted on this figure,
sea level rise of 12 and 24 inches would not be expected to impact the property beyond the bulkhead
and MHW. Based on the proposed elevations of 10 feet AMSL and minimum 9 feet AMSL for the
proposed buildings and infrastructure, respectively, sea level rise of 16 inches would not impact the
Project Area.
Sea Level Rise with Storm Inundation(NYSERDA)
Utilizing the NYSERDA Future Coastal Floodplain Mapper, sea level rise with storm inundation were
evaluated at the subject property, under the post-development condition (see Figure 24 in Appendix
A).At a 10-year recurrence interval with 18 inches of sea level rise (2050s),inundation could occur at
Buildings 2, 7 and 8, and the eastern portions of Buildings 3 through 6 could be affected. Building 1
would be unaffected. At a 100-year recurrence interval with 18 inches of sea level rise (2050s),
40htt so//www.dec.ny. ov/lands�40576.html.Accessed May 2021.
110
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
inundation across the property could occur but Building 1 would be unaffected. With the proposed
FFE of 10 feet for each building and the top elevation of all infrastructure at a minimum 9 feet AMSL,
this scenario is not expected to impact the proposed buildings or infrastructure.
The New York State Flood Risk Management Guidance for Implementation of the Community Risk and
Resiliency Act provides flood-risk management guideline elevations for structures. The following
should be considered when developing in areas of flood risk: siting of structures, design
considerations, utilizing climate-informed science to guide elevations, if a lake is present, structure-
specific elevation guidelines, and if transportation infrastructure is proposed. As it relates to the
proposed action,siting of structures,design considerations,utilizing climate-informed science to guide
elevations,and structure-specific elevation guidelines are applicable.
Generally,the guidance recommends the structures should be sited in a manner that avoids negative
impacts to adjacent and downstream areas due to water-level changes,storm surge,increased storms,
and considers the service life of the structure.The proposed action does not include any in-water work
that would impact adjacent or downstream areas. The proposed action would improve stormwater
management and reduce on-site flooding. For the proposed action, the shortest service life is
approximately 30 years for the I/A OWTS. The CRRA and NYSERDA projections considered for the
proposed action therefore extends to the anticipated service life of the I/A OWTS and both systems
have been located above these projections. Therefore, the proposed action has taken into
consideration negative impacts to adjacent and downstream areas and the service life of the proposed
structures.
Elevating structures two feet above the BFE for non-critical infrastructure and three feet above BFE
for critical infrastructure is also recommended. Critical infrastructure includes components of
wastewater utilities, including all electrical, mechanical, and control systems associated with pump
stations and treatment facilities that are responsible for conveyance of wastewater to and through the
treatment facility to maintain primary treatment and disinfection during the flood event.41 The control
panels for the I/A OWTS and pump station are considered critical infrastructure and would be sited at
an elevation of BFE plus three feet,i.e.,at elevation 11 feet or greater. The pump station and I/A OWTS
lids are watertight,such that flood waters will not enter the system.
41 Pursuant to New York State Flood Risk Management Guidance for Implementation of the Community
Risk and Resiliency Act, "Critical equipment for wastewater facilities includes conveyance and
treatment system components that must be protected to ensure continuous operation of the facility.
Such equipment includes, but is not limited to, all electrical, mechanical, and control systems
associated with pump stations and treatment facilities that are responsible for conveyance of
wastewater to and through the treatment facility to maintain primary treatment and disinfection
during the flood event. Other critical equipment includes equipment that, if damaged by flood
conditions,would prevent the facility from returning to pre-event operation after the cessation of flood
conditions.For water supply facilities,critical equipment would include similar components used for
pumping and treatment,and wells that could be subject to contamination during a flood. Less critical
is equipment that if flooded, can be brought back into operation quickly...Protection for existing
equipment that is below the recommended elevation may be achieved by means other than elevation
to protect the equipment from water damage or wave action,and saltwater exposure if located in tidal
zones. Such other means may include construction of barriers, watertight enclosures, or additional
methods of protection.There should also be protection from salt corrosion in marine environments as
warranted."
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
It is important to note the climate-informed science-based projections should only be utilized for
structure elevation if they are greater than the BFE plus two feet. In the case of the proposed action,
the projections from the CRRA and NYSERDA are below two feet.Therefore,although Buildings 9 and
10 are outside of the mapped floodplain,they have been sited at an elevation of 10 feet AMSL,which
is two feet above the adjacent BFE and are higher than the CRRA and NYSERDA projections considered
for the proposed action.
Based on the information provided in Table 4 of New York State Flood Risk Management Guidance for
Implementation of the Community Risk and Resiliency Act, the proposed action is considered a large
non-residential structure in a non-tidal area.The recommendation is structures in non-tidal areas,like
the proposed action,should be sited at two feet above the one-percent flood level.The Project Area is
outside of the one-percent flooding area.Additionally,the proposed action has been situated two feet
above the adjacent BFE. Therefore, the proposed action has taken into consideration
recommendations made for large non-residential structures in non-tidal areas.
The proposed action has adequately considered relevant recommendations set forth in the New York
State Flood Risk Management Guidance for Implementation of the Community Risk and Resiliency Act.
Groundwater Table Elevation
As indicated in Section 2.3.1 of this DEIS,with a 16 inch or 1.33±-foot rise in sea level,the groundwater
model predicts that groundwater beneath the site would rise to an elevation of 3.05 feet AMSL(NAVD
88), or a rise of 1.31 feet (model predicted the post excavated site groundwater elevation to be 1.74
feet AMSL[NAVD 88])without any sea level rise-see Figure 19a of the Groundwater Modeling Report
in Appendix L). Given the availability of borings, the 1.31 feet rise has been applied to the current
groundwater elevation for a projected 2050 Groundwater Elevation and 2050 Groundwater
Separation distance to groundwater from the various proposed infrastructure (see Table 17 below).
112
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 17-Analysis of Proposed Improvements and Separation Distances to Groundwater with Sea
Level Rise(Part 490 Regulations-2050 Medium Scenario of 16")
Proposed GW Elevation GW 2050 Proposed Elevation GW GW
Improvement (Data Source) Elevation** Separation Separation
CurrentBGS 2050 BGS
Sanitary System No. 1.2 feet AMSL 2.5±feet Top of System:9.4 feet; 3.2±feet 1.9±feet**
l(New) (McDonald 132) AMSL Depth of Leaching
Galleys:3.0 feet;Base of
Galleys:4.4 feet
Sanitary System No. 1.4 feet AMSL 2.7±feet Top of System:9.4 feet; 3.0±feet 1.7±feet**
2(Replacement (McDonald 131) AMSL Depth of Leaching
System) Galleys:3.0 feet;Base of
Galleys:4.4 feet
Tributary Area No.1 2.0 feet AMSL 3.3±feet 5.0 feet Deep Pools 3.0±feet 1.7±feet**
-Drainage Leaching (PWGC B-5) AMSL
Field 1.0
Tributary Area No.2 1.2 feet AMSL 2.5±feet 4.7 feet Deep Pools 3.5±feet 2.2±feet
-Drainage Leaching (McDonald 132) AMSL
Field 2.0
Tributary Area No.3 1.2 feet AMSL 2.5±feet 4.25 feet Deep Pools 3.0±feet 1.7±feet**
-Drainage Leaching (McDonald 132) AMSL
Field 3.0
Tributary Area No.4 1.0 feet AMSL 2.3±feet 5.0 feet Deep Pools 4.0±feet 2.7±feet
-Drainage Leaching (PWGC B-8) AMSL
Field 4.0
Proposed Building 9 1.0 feet AMSL 2.3±feet FFE:10 feet 9.0±feet 7.7±feet
PWGC B-8 AMSL
Proposed Building 1.2 feet AMSL 2.5±feet FFE:10 feet 8.8±feet 7.5±feet
10 McDonald 132 AMSL
LPG Vault Building 3.0 feet AMSL 4.3±feet Elevation 9.0±feet 6.0±feet 4.7±feet
9 (PWGC B-11) AMSL AMSL
LPG Vault Building 2.0 feet AMSL 3.3±feet Elevation 9.0±feet 7.0±feet 5.7±feet
10 PWGC B-5 AMSL AMSL
**2050 Separation from proposed grade elevation to base of structures is less than the current recommended
separation distance to groundwater for sanitary effluent(3 feet)or stormwater(2 feet).(SCDHS Standards for
Approval of Plans and Construction for Sewage Disposal Systems for Other Than Single-Family Residences,July 2020;
New York State Stormwater Management Design Manual,January 2015). Due to the existing site condition with the
existing marina operations and buildings located between Elevations 6±feet and 8±feet AMSL,the proposed final
grade elevation of 10 feet is the maximum elevation possible to accommodate boat transport via the travelift.
Specifically,the 85-ton travelift hauls boats directly from the water and can only traverse on relatively flat grades.
As summarized in Section 2.1.2 of this DEIS,the Boring Logs indicate depth to groundwater at 6.4±feet
bgs (or 1.4± feet AMSL) at Boring 131 (the location of the replacement system identified as Sanitary
System No. 2) and at 7.6± feet bgs (or 1.2± feet AMSL) at Boring B2 (the location of the new system
identified as Sanitary System No. 1). As shown on the Utility Plan (see Appendix C),the top elevation
of both Sanitary Systems Nos.1 and 2 would be 9.4± feet AMSL and the base of the leaching galleys
would be 4.4 feet AMSL.Based on existing conditions,the distance between the bottom of the leaching
pool and groundwater for Sanitary System No.1 is approximately 3.2 feet and Sanitary System No.2 is
approximately 3.0 feet. When applying a projected 1.31-foot rise in groundwater elevation in the
2050s, this separation distance would decrease to 1.7± feet and 1.9± feet for System Nos. 1 and 2,
respectively.
113
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The recommended separation distance to groundwater for sanitary leaching fields is three feet. As
such,should sea level rise occur as projected,the system would be non-compliant with current design
requirements. However, in the 2050 condition, modifications to the leaching field could be
implemented by elevating and installing a pump station. However,the manufacturer lifespan of the
I/A OWTS is 30 years,and thus,by the 2050s,new systems could be expected.Should the projections
of sea level rise be realized, the new systems to be installed would be required to comply with the
regulations at that time.
Regarding drainage infrastructure,the recommended separation distance to groundwater is two feet.
The proposed stormwater leaching fields would be installed with top elevations ranging from 9-to-
9.5± feet AMSL and varying pool depths. Based on existing conditions, the groundwater separation
would range from 3.0±feet to 4.0±feet. A 1.31-foot rise in groundwater elevation would decrease the
separation distance to 1.7± feet to 2.7± feet. Should this scenario occur, the drainage infrastructure
could be replaced and/or supplemented with shallow drainage structures to accommodate
stormwater runoff.
Precipitation
As indicated in Section 2.3.1,there has been a downward trend in annual precipitation but an increase
in heavy precipitation events. Pursuant to §236-7.A of the Town of Southold Town Code, "all land-
disturbing activities or the addition or replacement of impervious surfaces shall provide temporary and
permanent construction controls and shall be required to contain a two-inch rainfall on site,even where
approval of the Stormwater Management Officer is not required under this chapter."
As indicated earlier in this section and in Section 1.2.5 of this DEIS, the proposed stormwater
management plan is designed to accommodate a two-inch rain event, in accordance with Town of
Southold regulations (Chapter 236 Stormwater Management) and Tributaries 3 and 4 would
accommodate a portion of off-site stormwater due to existing natural grades. The Groundwater
Modeling Report included in Appendix L of this DEIS evaluated the impacts of the additional recharge
on-site. As summarized in Section 2.2.2 of this DEIS (and included in its entirety in Appendix L),the
proposed drainage system would greatly reduce runoff and evapotranspiration effects,and thus,have
a net increase with regards to groundwater recharge. The post-development recharge volume across
the entire 16.5-acre M-II site is estimated at 2,345,038.08 feet3/yr.or 6,424.76 feet3/day. Comparing
the existing to post-development conditions, approximately 114,548.28 feet3/yr. of additional
recharge would reach the aquifer system.
Under both existing and post-development conditions the post excavated site, groundwater flows
towards Mattituck Creek. Under the post excavated conditions,a slight increase in the water table of
0.01 feet is predicted immediately beneath the excavation area. The groundwater model shows no
particle deflections or trajectory changes, and thus, the increased recharge would have no effect on
nearby wells.
114
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
NYSDEC Using Natural Measures to Reduce the Risk of Flooding and Erosion Guidance, August
2020
As discussed in Section 2.3.1 of this DEIS, the CRRA outlined five provisions when considering the
expenditure of State monies, development of facility-siting regulations, and the issuance of State
permits for projects within the coastal area of the State vulnerable to sea-level rise.Including: (1)the
adoption of official sea-level rise projections; (2) consideration of sea-level rise, storm surge, and
flooding in facility siting, permitting, and funding; (3) Smart Growth Public Infrastructure Policy Act
criteria; (4)model local laws concerning climate risk;and(5)guidance on natural resiliency measures
Using Natural Measures to Reduce the Risk of Flooding and Erosion was published by NYSDEC and
NYSDOS with the intent to provide guidance to decisions makers to consider natural processes and the
use of natural resources to enhance resiliency and reduce the risk from sea-level rise, storm surge,
flooding, erosion, and extreme weather events instead of relying on tradition hard structural
measures. Natural resiliency measures are defined as, "actions to conserve, restore, or mimic natural
landforms or features and natural processes that reduce risk from flooding and erosion," (page 3-1).42
The document outlines two types of natural resiliency measures: natural feature conservation and
nature based/soft structural measures (3-1).43 Natural feature conservation entails implementing
non-structural measures to preserve the natural features as they currently exist. Measures like this
include relocating assets outside of vulnerable areas, increasing setbacks to reduce the siting of
structures in vulnerable areas,and adapting structures to withstand flood events.The benefit to this
method is its efficiency and is not as costly as recreating or restoring the natural feature present.
Utilizing soft structural measures involves natural feature restoration and nature-based feature
construction.Natural feature restoration reestablishes degraded areas to align with pre-development
conditions. Nature-based feature construction mimics the natural features and a preferred method
when natural features enhance resiliency but do not sufficiently reduce risk.These methods typically
require more maintenance but are still more cost-effective than hard structures.
The document identifies 17 natural features and three subsequent nature-based approaches that
reduce the risk of flooding and erosion in coastal,stream/riverine,and upland settings (4-1).44 Table
18 below is an excerpt of Table 4-1 from the document:
42 https://www.dec.n . ov docsladministration pdf�crranaturalmeasures ndc.pdf
431bid.
441bid.
115
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 18-Natural Measures to Reduce the Risk of Flooding and Erosion
Natural Features
That Reduce Risk Coastal Stream/Riverine U 1p and
Highly Dynamic(likely to move or change significantly as energy and water from
storms or other sources is absorbed)
Bank X X
Barrier island X X
Beach X X
Bluff X X
Dune X X
Floodplain X X
Inlets X X
Nearshore Area X
Riparian Area X
Shoals X
Stream X
Submerged Aquatic X
Vegetation
Wetlands, non-tidal X X
freshwater
Wetlands,tidal X
More Stable
Forests X
Maritime Forests X
Shellfish Beds/Reefs X
Of the natural features identified,the floodplain,maritime forest,and tidal wetlands are present at the
subject property and an inlet is located northwest of the subject property at Mattituck Inlet. The
FLUPSY units are not considered shellfish beds or reefs.
The nature-based techniques recommended include constructing stormwater green infrastructure,
nature-based coastal techniques, and nature-based stream techniques. The construction of
stormwater green infrastructure technique enhances the natural capture of rainwater,uses vegetation
combined with grading,fill or addition or removal of structural components to improve the infiltration
of stormwater into the ground.Nature-based coastal techniques mimic the natural shoreline processes
to reduce the risk of erosion to human assets on coastal shorelines. Similar to the stormwater green
infrastructure technique, nature-based coastal techniques rely on vegetation with grading, fill or
addition or removal of structural components. The three most common approaches include bank
stabilization, in-water features, and floodplain reconnection. Nature-based stream techniques mimic
the natural shoreline processes to reduce the risk of erosion to human assets on stream and riverine
shorelines. This technique also relies on vegetation with grading, fill or addition or removal of
structural components and is best implemented where there is low to moderate wave energy and no
fetch or wind-driven waves.The design is most effective when it mimics the morphology, hydrology,
and sediment transport of the stream or river.The three common approaches utilized include stream
stabilization techniques,floodplain reconnection,and stream daylighting.
116
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As the proposed action does not entail in-water work and the eastern shoreline at Mattituck Creek is
bulkheaded, it is not feasible to implement nature-based techniques as part of the proposed action.
The proposed action does include natural feature conservation as non-structural measures would be
implemented to improve the resiliency of the proposed buildings and infrastructure. Locating
Buildings 9 and 10 at BFE 10 feet, which is two feet above the adjacent BFE 8 feet and locating the
proposed I/A OWTS outside of the floodplain mitigates potential impacts from future sea-level rise,
storm surge,flooding, erosion,and extreme weather events.Additionally,the proposed action would
be located landward of all regulated tidal wetlands such that all wetland areas would continue to
function in their natural state and serve as a protective shoreline feature.This decision ensures these
assets are not sited in vulnerable areas. Utilizing non-structural measures like these are effective as
they reduce both short-term and long-term flood damage and are a more cost-effective management
technique (page 3-2).45
The proposed action has been designed in accordance with the nature-based coastal techniques
outlined in Using Natural Measures to Reduce the Risk of Flooding and Erosion to the extent practicable
and complies with the aforementioned recommendations set forth by NYSDEC and NYSDOS as part of
the CRRA to implement natural measures to reduce flooding and erosion.
NYSDEC Community Risk and Resiliency Act Guidance for Consideration of Flood Risk in Smart
Growth Public Infrastructure Assessment,August 2020
The Community Risk and Resiliency Act Guidance for Consideration of Flood Risk in Smart Growth Public
Infrastructure Assessment was published by the NYSDEC as guidance for mitigating risk from sea-level
rise,storm surge,and flooding for public-infrastructure projects.
As the subject property is a private development application,this guidance document is not applicable
to the proposed action. However, in accordance with the Amended Final Scope, the relevant
recommendations are summarized below:
• Public infrastructure projects should be sited, designed, and constructed to prevent and
minimize damage associated with future sea-level rise,storm surge,and flooding.
• Public infrastructure agencies should assess whether infrastructure projects are consistent
with mitigation of risk due to sea-level rise,storm surge,and flooding.
• Assessment processes should incorporate the recommendations, flood risk management
guidelines and information sourced in New York State Flood Risk Management Guidance.
• Construction of new infrastructure projects should be avoided in flood-hazard areas, as
defined by the flood-risk management guidelines in the New York State Flood Risk
Management Guidance.
• Interagency, community, and stakeholder collaboration in project development decisions is
encouraged.
Overall, the proposed action has taken into consideration the recommendations in this guidance
document As indicated in Table 17 and presented in this Section,the proposed action has been sited
45 hopsw.dec.n ov docslad inistration pdf/crranaturalmeasures ndc.pdf
117
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
outside of high flood risk areas and includes building to elevations in accordance with the adjacent
flood zone (i.e., Zone AE: BFE 8 feet) to minimize impacts from flood and extreme storm events. The
proposed infrastructure has also been sited to minimize impacts from flood and extreme storm events.
Therefore,although the proposed action is not for public infrastructure,future flood risks have been
mitigated to the maximum extent practicable as recommended by this guidance.
Impact on Proposed Landscaping
As discussed earlier in this Section, the bottom elevation of the Evergreen concrete retaining wall
would be approximately 20 feet AMSL and reach a maximum top elevation of approximately 50 feet
AMSL. Accordingly, the proposed landscaping is located outside areas of potential future flood
inundation during storm events. The placement of the surrounding landscaping and Evergreen
concrete retaining wall would also stabilize the slopes within the Project Area and provide an area for
natural infiltration of stormwater. Additional information regarding the plantings for the Evergreen
concrete retaining wall is discussed in Section 3.4.2. Therefore, the proposed landscaping has been
designed to minimize potential impacts from flooding and storm events.
2.3.3 Proposed Mitigation
Based on the above analyses, the proposed development is not expected to be adversely impacted by future
climate change impacts. The proposed development has incorporated the following mitigation measures to
avoid potential impacts associated with flooding:
• The placement of buildings at FFE 10.0 feet AMSL and other infrastructure at a minimum
elevation of 9.0 feet AMSL will mitigate potential flood impacts based upon the adjacent flood
zone boundary.
• All project elements have been located landward of the existing floodplain.
2.4 Ecological Resources
2.4.1 Existing Conditions
Introduction
Ecological surveys were conducted at the 32.96-acre subject property by Dr.William Bowman of LUES
on various dates in 2020 and 2021. Specifically, field surveys and work were performed by Dr.
Bowman on September 18,2020,October 21,2020,January 17,2021,May 13,2021,July 19-28,2021,
and August 24,2021. During the field inspection,a total of 122 vascular plant species were observed,
including 53 woody plants,64 herbaceous plants,and three ferns.Additionally,91 birds,20 mammals
and three herptiles were observed or are expected to occur on the site. Dr.Bowman's field work also
included a tree survey with species identification. LUES also prepared the proposed tree removal plan
with species identification and analysis, in coordination with Young & Young Engineering, as the
project engineer. An Ecological Report has been prepared by LUES,which is included in Appendix N
of this DEIS and includes the aforementioned Tree Survey and Tree Removal Plan. A summary of the
Ecological Report and tree analysis follows.
118
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Ecological Communities
Between the mid-1950s and 1984,the site consisted of agricultural fields adjacent to West Mill Road,
a small tree plantation or orchard, forests, and a marina facility, as indicated by aerial imagery from
Suffolk County. During this time,cleared land associated with the agricultural and commercial marine
uses accounted for approximately 58 percent(19.1 acres) of the 32.96-acre property. Aerial imagery
of the site from 1962 and 1984 is provided in Figures 1 and 2 in the Ecological Report. The agricultural
use on the western portion of the site appears to have been abandoned in the late 1980s. The existing
ecological communities now present at the site include Coastal Oak-Beech Forests; successional
habitats that have developed on the former agricultural lands including southern successional
hardwood forests and successional shrublands; a small tidal wetland area associated with Mattituck
Creek;and anthropogenic cover types such as mowed lawn with trees and landscaping,buildings,and
paved and pervious road and parking surfaces. The existing boundaries of the site's ecological
communities are shown in Figure 3 in the Ecological Report and the acreage of each ecological
community type and the percentage of the total site area are provided in Table 19 below(as excerpted
from Table 1 of the Ecological Report). Descriptions of the ecological communities observed are
provided along with the New York Natural Heritage Program community descriptions from Edinger et
al(2014).
Table 19-Existing Ecological Communities at Subject Property
Ecological Community Acres Percent
Coastal Oak-Beech Forest 12.60± 38.2%
Successional Shrubland 10.83± 32.9%
Successional Southern Hardwoods 4.67± 14.2%
Buildings and Paved Surfaces 3.70± 11.2%
Tidal Wetlands 0.63± 1.9%
Unvegetated Sand Slope 0.29± 0.9%
Mowed Lawn with Trees and 0.24± 0.7%
Landscaping
Total 32.96± 100%
Coastal Oak-Beech Forests
Coastal Oak-Beech Forest represent 12.60±acres,or 38.2 percent of the site,from the steep,east-facing
slope adjacent to the existing marina extending west on the site's hilltops and slopes. The following is
the definition of this community as described by Edinger et al(2014):
"A hardwood forest with oaks (Quercus spp.) and American beech (Fagus grandifolia)
codominant that occurs in dry,well drained,loamy sand of morainal coves of the coastal plain.
Some occurrences are associated with maritime beech forest.American beech can range from
nearly pure stands to as little as about 25 percent cover.The forest is usually co-dominated
by two or more species of oaks,usually black oak(Quercus velutina) and white oak(Q.alba).
Scarlet oak(Q. coccinea) and chestnut oak(Q. montana) are common associates. Red oak(Q.
rubra) may be present at low density, and is a key indicator species along with sugar maple
119
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
(Acer saccharum) and paper birch (Betula papyrifera). There are relatively few shrubs and
herbs.Characteristic ground layer species are Swan's sedge(Carex swan ii),Canada mayflower
(Maianthemum canadense), white wood aster (Eurybia divaricata), beech-drops (Epifagus
virginiana),and false Solomon's seal (Maianthemum racemosum). Typically,there is also an
abundance of tree seedlings, especially of American beech; beech and oak saplings are often
the most abundant"shrubs"and small trees."
The high-quality Coastal Oak-Beech Forest on the site consist of abundant large trees(ranging between
6 and 39 inches in diameter). American beech (Fagus grandifolia) accounts for approximately 33
percent of the tree stems with the remainder of the canopy consisting of relatively equal proportions
of black oak (Quercus velutina), white oak (Q. alba), scarlet oak (Q. coccinea), and chestnut oak (Q.
montana). Red maple (Acer rubrum) and pignut hickory (Carya glabra) are also present as canopy
trees. Tree species that are dominant in the understory are American beech and red maple,and,to a
lesser extent,the various oak species. The shrub-and ground layers of vegetation are sparse due to
the dense shade under the beech-dominated canopy and heavy browsing from white-tailed deer.
Coastal Oak-Beech Forests in New York State are typically found on the north-facing slopes of glacial
moraines of Suffolk and Richmond Counties. Numerous examples occur along the North Shore of
Suffolk County from Wildwood State Park to Route 48 in Southold;from Big Woods (Southampton)to
Montauk Point on the South Fork (NYNHP, 2020); the headland necks of Suffolk County that extend
into Long Island Sound, such as Lloyd Neck(Greller, 1977); and small patches farther west on Long
Island into Nassau County and eastern Queens counties(Greller, 1977).
Edinger et al (2014) indicates that this ecological community is restricted to Suffolk and Richmond
Counties in New York State with a rarity ranking of G4 and S3 indicating that this community type is
considered "apparently secure" globally and "vulnerable" in New York State, i.e., vulnerable to
disappearing from New York(but not currently imperiled)due to rarity or other factors.
Successional Southern Hardwoods
Successional southern hardwoods represent 4.67±acres,or 14.2 percent of the site. The following is
the definition of this community as described by Edinger et al(2002):
"Hardwood or mixed forest that occurs on sites that have been cleared or otherwise disturbed.
"Characteristic trees and shrubs include any of the following: American elm (Ulmus
americana),slippery elm(U.rubra),white ash(Fraxinus americana),red maple(Acerrubrum),
box elder(Acer negundo),silver maple (A.saccharinum),sassafras (Sassafras albidum),gray
birch (Betula populifolia), hawthorns (Crataegus spp.), eastern red cedar Uuniperus
virginiana),and choke-cherry(Prunus virginiana). Certain introduced species are commonly
found in successional forests, including black locust (Robinia pseudo-acacia), tree of heaven
(Ailanthus altissima),and buckthorn(Rhamnus cathartica).Any of these may be dominant or
codominant in a successional southern hardwood forest. Southern indicators include
American elm,white ash,red maple,box elder, choke-cherry,and sassafras.This is a broadly
defined community and several seral and regional variants are known.
At the site,this ecological community is dominated by early successional tree species including black
cherry (Prunus serotina), black locust (Robinia pseudoacacia), eastern red cedar Uuniperus
120
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
virginiana),Norway maple (Acer platanoides),and bird cherry(Prunus avium)that have re-grown on
formerly cleared areas or former agricultural fields. The understory and ground layers in the site's
successional forests consist of dense thickets of multiflora rose (Rosa multiflora), various brambles
(Rubus phoenicolasius and Rubus alleghanensis), catbriar (Smilax rotundifolia), Asiatic bittersweet
(Celastrus orbiculatus), Japanese honeysuckle (Lonicera japonica), and poison ivy (Toxicodendron
radicans).
Edinger et al(2014)indicates that this ecological community is distributed throughout New York State
with a rarity ranking of G5 and S5 indicating that these communities are considered "demonstrably
secure"both in globally and in New York State.
Successional Shrublands
Vegetation typical of successional shrublands represents 10.83±acres, or 32.9 percent of the subject
property on the former agricultural lands on the western portion of the property. The following is the
definition of this community as described by Edinger et al(2014):
"A shrubland that occurs on sites that have been cleared (for farming, logging, development,
etc.) or otherwise disturbed. This community has at least 50 percent cover of shrubs.
Characteristic shrubs include gray dogwood (Corpus racemosa),eastern red cedar(juniperus
virginiana),raspberries(Rubusspp.),serviceberries(Amelanchierspp.),choke-cherry(Prunus
virginiana), wild plum (Prunus americans), sumac (Rhus glabra, R. typhina), nanny-berry
(Viburnum lentago),and arrowwood(Viburnum dentatum var.lucidum).Non-native invasive
shrubs include hawthornes (Crataegus spp.), multiflora rose (Rosa multiflora), Russian and
autumn olive (Elaeagnus angustifolia, E. umbellata), buckthorns (Rhamnus cathartica,
Frangula alnus),and shrubby honeysuckles(Lonicera tatarica,L.morrowii,L.maacckii)."
The successional shrublands at the site are dominated by autumn olive (Elaeagnus umbellate) with
thickets of brambles(Rubus phoenicolasius,Rubus allegheniensis,and Rubus flagellaris)and multiflora
rose(Rosa multiflora). Native and old field grasses and wildflowers including goldenrods(specifically
Solidago rugosa, Solidago canadensis, and Euthamia gramnifolia), pearly everlasting (Anaphalis
margaritacea),and intermediate dogbane (Apocynum cannabinum) are present along the maintained
margins of trails and paths. Invasive fountain grass(Miscanthus sp.)was also common.
The site's successional shrublands contain many small stands of successional trees, mostly black
cherry (Prunus serotina) and eastern red cedar Uuniperus virginiana), with infestations of Asiatic
bittersweet(Celastrus orbiculatus). Edinger et al (2014) indicates that this ecological community is
distributed throughout New York State with a rarity ranking of G4 and S4 indicating that these
communities are considered"apparently secure"both in globally and in New York State.
Tidal Wetlands
The site's tidal wetlands are located along Mattituck Creek in an un-bulkheaded section of shoreline at
the southern end of the property. These tidal wetlands occupy approximately 0.63±acre or 1.9 percent
of the property. The tidal wetlands consist mostly of Spartina alterniflora-dominated intertidal marsh.
The landward margin of the tidal wetlands is dominated by invasive common reed (Phragmites
121
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
australis) with scattered groundsel bush (Baccharis halimifolia) and marsh elder (Iva frutescens).
There is a narrow band of high marsh vegetation between the Phragmites and intertidal marsh,
including salt hay (Spartina patens), spike grass (Distichis spicata), and seaside lavender (Limonium
carolinianum).
Tidal Wetlands in Mattituck Creek
Approximately 60-acres of tidal wetlands and 10-acres of unvegetated shoals and mudflats are located
within Mattituck Creek;mostly on the east side of Mattituck Creek to the north of West Mill Road and
including the New York State Mattituck Creek Tidal Wetlands Preserve. In 2005,the tidal wetlands in
Mattituck Creek were comprised largely(more than 90-percecnt) of native intertidal and high marsh
communities with relatively low abundance of invasive Phragmites-dominated marshes (NEIWPCC,
2015). No submerged aquatic vegetation beds, e.g., eelgrass (Zostera marina),are known to occur in
Mattituck Creek(Long Island Sound Study,2017).
The tidal wetlands and beaches of Mattituck Inlet are designated as a Significant Coastal Fish and
Wildlife Habitat by the NYSDOS (NYSDOS, 2005). As indicated in Section 2.2.1 of this DEIS, Mattituck
Creek is designated as a Significant Coastal Fish and Wildlife Habitat,in part,as it is one of few or rare
undeveloped tidal wetlands in eastern Suffolk County with a deepwater inlet and strong tidal flushing
tributary to Long Island Sound(NYSDOS,2005). Ecosystem functions and values provided by the tidal
wetlands of Mattituck Creek include supporting fish and shellfish populations and a productive
recreational fishery,uptake or trapping of land-derived nutrients and contaminants,providing wildlife
habitat,protecting upland and shoreline areas from flooding and erosion,and providing water-based
recreational opportunities.
The wetlands of Mattituck Inlet provide foraging and breeding habitat for a wide variety of fish and
wildlife species including wading birds (such as great egret,snowy egret,and green heron),least and
common tern, osprey, and waterfowl (such as American black duck, gadwall, and mallard). Federal-
and New York State-protected shorebirds, such as piping plover and least tern, nest on the nearby
beaches adjacent to Mattituck Inlet and forage in appropriate tidal wetlands,shoals and mudflats,and
estuarine waters of Mattituck Creek. Mattituck Creek supports populations of marine and estuarine
fish including bluefish, striped bass, weakfish, fluke, black sea bass, winter flounder, striped and
northern sea robins,blackfish,oyster toadfish,and scup.
Shellfish that inhabit the waters in and adjacent to Mattituck Creek include surf clams, hard clams,
oysters, and blue mussels. The northern reaches of Mattituck Creek are certified by the NYSDEC for
the harvest of shellfish during the months January through April. The headwaters of Mattituck Creek
(upstream of Point Pleasant) and the Howards Creek and Long Creek tributaries are not certified for
shellfish harvest. The NYSDEC Mattituck Inlet/Creek is assessed as an impaired waterbody due to
pathogen pollution from urban and storm runoff(NYSDEC,2016).
Plants
Table 20 below(as excerpted from Table 2 of the Ecological Report)includes a plant list for the subject
property and is based on ecological surveys completed by Dr. Bowman in 2020 and 2021.A total of
122
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
122 vascular plant species were observed at the site,including 53 woody plants,66 herbaceous plants,
and three ferns.
Table 20-Plant Species List for Subject Property
Common Name Scientific Name
TREES SHRui3s AND WOODY VINES'
Box Elder Acer negundo
Norway Maple Acer platanoides
Red Maple Acer rubrum
Silver Maple Acersaccharinum
Tree-of-Heaven Ailanthus altissima
Mimosa Albizzia julibrissin
Shadbush Amelanchier canadensis
Porcelainberry Ampelopsis brevipedunculata
Groundsel Bush Baccharis halimifolia
Japanese Barberry Berberis thunbergia
Gray Birch Betula populifolia
Pignut Hickory Carya glabra
Asiatic Bittersweet Celastrus orbiculatus
Sweet Fern Comptonia peregrine
Flowering Dogwood Cornus Florida
Autumn Olive Elaeagnus umbellate
American Beech Fagusgrandifolia
Black Huckleberry Gaylussacia baccata
American Holly Ilex opaca
Marsh Elder Iva frutescens
Eastern Red Cedar Juniperus virginiana
Mountain Laurel Kalmia latifolia
Japanese Honeysuckle Lonicera japonica
White Mulberry Morus alba
Bayberry Morella pensylvanica
Virginia Creeper Parthenocissus quinquefolia.
Pitch Pine Pin us rigida
Japanese Black Pine Pin us thunbergia
Cottonwood Populus deltoides
Big-toothed Aspen Populusgrandidentata
Bird Cherry Prunus avium
Black Cherry Prunus serotina
Callery Pear Pyrus calleryana
Apple Malus sp.
White Oak Quercus alba
Scarlet Oak Quercus coccinea
Chestnut Oak Quercus montana
Red Oak Quercus rubra
123
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Common Name Scientific Name
Black Oak Quercus velutina
Black Locust Robinia pseudoacacia
Multiflora Rose Rosa multiflora
Blackberry Rubus allegheniensis
TREES SHRUBS AND WOODY VINES'
Northern Dewberry Rubus flagellaris
Wineberry Rubus phoenicolasius
Sassafras Sassafras albdium
Catbriar Smilax rotundifolia
Bittersweet Nightshade Solanum dulcamara
Poison Ivy Toxicodendron radicans
Late Lowbush Blueberry Vaccinium angustifolia
Highbush Blueberry Vaccinium corymbosum
Early Lowbush Blueberry Vaccinium pallidum
Linden Viburnum Viburnum dilatatum
Arrowwood Viburnum dentatum
Wild Grape Vitis sp.
HERBACEOUS PLANTS
Yarrow Achillea millefolium
Redtop Bent Grass Agrostis alba
Bent Grass Agrostis sp.
Garlic Mustard Alliaria petiolate
Field Garlic Allium vineale
Common Ragweed Ambrosia artemisiifolia
Pearly Everlasting Anaphalis margaritacea
Broom Sedge Andropogon virginiana
Corn Chamomile Anthemis arvensis
Sweet Vernal Grass Anthoxanthum odoratum
Indian Hemp Apocynum cannabinum
Wild Sarsaparilla Aralia nudicaulis
Mugwort Artemisia vulgaris
Common Milkweed Asclepias syriaca
Seabeach Orach Atriplexmucronate
Hoary Alyssum Berteroa incana
Shepherd's Purse Capsella bursa-pastoris
Pennsylvania Sedge Carex pensylvanica
Lamb's Quarters Chenopodium album
Horseweed Conyza canadensis
Yellow Nut Sedge Cyperus esculentus
Orchard Grass Dactylisglomerata
Wild Carrot Daucus carota
Common Hairgrass Deschampsia flexuosa
Hairgrass Deschampsia sp.
Deer Tongue Dichanthelium sp.
124
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Common Name Scientific Name
Hairy Rosette Panic Grass Dicanhtelium acuminatum
Spike Grass Distichlis spicata
Crab Grass Digitaria sanguinalis
Indian Strawberry Duchesnea indica
Quack Grass Elytrigia repens
Beech Drops Epifagus virginiana
Stink Grass Eragrostis cilianensis
Daisy Fleabane Erigeron annuus
Horseweed Erigeron canadensis
HERBACEOUS PLANTS
Slender Flat-topped Goldenrod Euthamia caroliniana
Common Flat-topped Goldenrod Euthamiagraminifolia
Fescue Festuca sp.
White Avens Geum canadensis
Canada Hawkweed Hieracium canadense
Soft Rush Juncus effusus
Greene's Rush Juncusgreenei
Secund Rush Jun cus secundus
Path Rush Juncus tennis
Wild Peppergrass Lepidium virgincum
Seaside Lavender Limonium carolinianum
Fountain Grass Miscanthus sp.
Common Yellow Woodsorrel Oxalis stricta
Deertongue Grass Panicum clandestinum
Mile-a-Minute Vine Persicaria persicaria
Timothy Grass Phleum pratense
Common Reed Phragmites australis
Pokeweed Phytolacca americana
English Plantain Plantago lanceolata
Japanese Knotweed Polygonum cuspidatum
Lady Thumb Smartweed Polygon um persicaria
Sheep Sorrel Rumex acetosella
Bitter Dock Rumex obtusifolius
Glasswort Salicornia sp.
Little Bluestem Schizachyrium scoparium,
Wood Grass Scirpus cyperinus
Blue-stemmed Goldenrod Solidago caesia
Rough-stemmed Goldenrod Solidago rugosa
Smooth Cordgrass Spartina alterniflora
Salt Hay Spartina patens
Small White Aster Symphyotrichum racemosum
Common Dandelion Taraxacum officinale
Purple Top Tridens flavus
Common Mullein Verbascum Thapsus
125
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Common Name Scientific Name
FERNS
Common Name Scientific Name
Marginal Wood Fern Dryopteris marginalis
Common Polypody Polyp odium virginanum
Christmas Fern Polystichum acrostichoides
Wildlife
Table 21, Table 22, and Table 23 (as excerpted from Tables 3 through 5 of the Ecological Report)
include the birds,mammals,and herptiles,respectively, observed or expected to occur on the subject
property based on field surveys performed by Dr.Bowman in 2020 and 2021. The range of ecological
communities present on the site provides habitats for wildlife species inhabiting both early
successional habitats and mature forest patches.
Birds
Approximately 91 bird species were observed or are expected to occur on the site (see Table 21).
Approximately 60 percent of these birds(i.e.,54 species)may utilize the property for breeding habitat
based on the observed habitat conditions and known bird breeding activity documented in the 2008
New York Breeding Atlas in the vicinity of Mattituck(McGowan and Corwin,2008). Approximately 38
percent of these birds (i.e., 34 species) are expected to transiently utilize the site seasonally, such
during the summer months only, only during spring and autumn migrations, or as overwintering
habitat. The remaining species (57 species) can be found year-round in appropriate habitats on Long
Island.
The mature Coastal Oak-Beech forests provide high-quality habitat that may be utilized by a variety of
songbirds including American redstart(Setophaga ruticilla),wood thrush(Hylocichla mustelina),great
crested flycatcher (Myiarchus crinitus), black-and-white warbler (Mniotitla varia), ovenbird (Seiurus
aurocapilla), and northern parula (Parula americana). Due to the proximity to existing forest edges
along former agricultural lands, residential properties, and the commercial marina,the site's forests
are also utilized by common suburban birds. These species include American robin (Turdus
migratorius), house wren (Troglodytes aedon), common flicker (Colaptes auratus), tufted titmouse
(Baeolophus bicolor), blue jay (Cynaocitta cristata), and cardinal (Cardinalis cardinalis). Dead trees,
snags,and limbs in these forests provide habitat for cavity-nesting birds and woodpeckers including
red-bellied woodpecker (Melanerpes carolinus) and downy woodpecker (Picoides pubescens). In
addition, the dense thickets of shrubs and small trees on the former agricultural lands provide
excellent habitat for songbirds which prefer dense vegetation including song sparrow (Melospiza
melodia), American goldfinch (Spinus tristis), yellow warbler (Dendroica petechia), ruby-crowned
kinglet (Regulus calendula), common yellowthroat (Geothlypis triches), gray catbird (Dumetella
carolinensis), northern mockingbird (Mimus polyglotta), and yellow-rumped warbler (Dendroica
coronata).
126
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 21-Bird Species Observed/Expected On-site
Observed /Expected Breeding Year Round/
Scientific Name Common Name (O/E) Status Migrant/
(Y/N)l Overwintering3
Accipiter cooperii Cooper's Hawk E Y Y
Accipiter striatus Sharp-shinned Hawk E N Y
Agelaiusphoeniceus Red-winged Blackbird 0 Y Y
Anas platyrynchos Mallard 0 Y Y
Anas rubripes American Black Duck E N Y
Ardea alba Great Egret E N M
Ardea Herodias Great Blue Heron E N Y
Baeolophus bicolor Tufted Titmouse 0 Y Y
Bombycilla cedrorum Cedar Waxwing E Y Y
Bubo virginianus Great Horned Owl E Y Y
Branta candensis Canada Goose E Y Y
Buteojamaicensis Red-tailed Hawk 0 Y Y
Cardinalis cardinalis Northern Cardinal 0 Y Y
Carduelis tristis American Goldfinch 0 Y Y
Carpodacus mexicanus House Finch 0 Y Y
Carpodacus purpureus Purple Finch E N Y
Cathartes aura Turkey Vulture 0 N Y
Catharusguttatus Hermit Thrush E N 0
Catharusfuscescens Veery E N M
Certhia americana Brown Creeper E N Y
Chaetura pelagica Chimney Swift 0 N M
Charadrius melodius Killdeer E N Y
Coccyzus americanus Yellow-billed Cuckoo E N M
Colaptes auratus Northern Flicker 0 Y Y
Columba livia Rock Pigeon E Y Y
Contopus virens Eastern Wood Pewee E Y Y
Corvus brachyrynchos American Crow 0 Y Y
Corvus ossifragus Fish Crow E Y Y
Cyanocitta cristata Blue Jay 0 Y Y
Dendroica caerulescens Black-throated Blue E N M
Warbler
Dendroica coronate Yellow-rumped Warbler 0 N M
Dendroica caerulescens Black-throated Blue E N M
Warbler
Dendroica coronata Yellow-rumped Warbler E N M
Dendroica palmarum Palm Warbler E N M
Dendroica petechia Yellow Warbler E Y M
Dendroica striata Blackpoll Warbler E N M
Dendroica virens Black-throated Green E N M
Warbler
Dumetella carolinensis Gray Catbird 0 Y Y
Empidonax traillii Willow Flycatcher E Y M
127
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Observed(O/E)'/Expected Breeding Year Round/
Scientific Name Common Name Status Migrant/
(Y/N)l Overwintering3
Egretta thula Snowy Egret E N M
Geothlypis trichas Common Yellowthroat 0 Y Y
Hiruno rustica Barn Swallow 0 Y Y
Hylocichla mustelina Wood Thrush E Y M
Icterusgalbula Baltimore Oriole E Y M
Junco hyemalis Dark-eyed Junco 0 N M
Larus argentatus Herring Gull 0 N Y
Larus delawarensis Ring-billed Gull 0 N Y
Larus marinus Great Black-backed Gull 0 N Y
Meleagrisgallopavo Wild Turkey 0 Y Y
Melanerpes carolinus Red-bellied Woodpecker 0 Y Y
Melospiza melodia Song Sparrow 0 Y Y
Mimus polyglottos Northern Mockingbird 0 Y Y
Mniotilta varia Black-and-white Warbler 0 Y Y
Molothrus ater Brown-headed Cowbird E Y Y
Myiarchus crinitus Great-crested Flycatcher E Y M
Otus asio Eastern Screech Owl E Y Y
Pandion haliaetus Osprey E N M
Parula americans Northern Parula E N M
Passer domesticus House Sparrow E Y Y
Passerella iliaca Fox Sparrow E N 0
Passerina cyanea Indigo Bunting E N M
Phasianus colchicus Ring-necked Pheasant E Y Y
Pheucticus ludovicianus Rose-breasted Grosbeak E Y M
Picoides pubescens Downy Woodpecker 0 Y Y
Picoides villosus Hairy Woodpecker 0 Y Y
Pipilo erythrophthalmus Eastern Towhee 0 N Y
Piranga olivacea Scarlet Tanager E Y M
Poecile atricapillus Black-capped Chickadee 0 Y Y
Quiscalus quiscula Common Grackle 0 Y Y
Regulus calendula Ruby-crowned Kinglet 0 N M
Regulus satrapa Golden-crowned Kinglet 0 N M
Sayornis phoebe Eastern Phoebe 0 Y Y
Setophaga petechia Yellow Warbler 0 Y Y
Setophaga pinus Pine Warbler 0 N M
Setophaga ruticilla American Redstart E Y M
Scolopax minor American Woodcock E Y Y
Sitta carolinensis White-breasted Nuthatch E N Y
Spizella passerine Chipping Sparrow E N Y
Spizella pusilla Field Sparrow E N Y
Sphyrapicus varius Yellow-bellied Sapsucker E N 0
Sturnus vulgaris European Starling E Y Y
Tachycineta bicolor Tree Swallow 0 Y Y
Thyrothorus ludovician us Carolina Wren 0 Y Y
128
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Observed(O/E)'/Expected Breeding Year Round/
Scientific Name Common Name Status Migrant/
(Y/N)l Overwintering3
Toxostoma rufum Brown Thrasher E Y M
Troglodytes aedon House Wren 0 Y Y
Turdus migratorius American Robin 0 Y Y
Tyrannus tyrannus Eastern Kingbird E N M
Vermivora pinus Blue-winged Warbler E N M
Vireo gilvus Warbling Vireo E Y M
Vireo griseus White-eyed Vireo E Y M
Vireo olivaceus Red-eyed Vireo 0 Y M
Vireo solitarius Blue-headed Vireo E N M
Zenaida macroura Mourning Dove 0 N Y
Zonotrichia albicollis White-throated Sparrow 0 N 0
'Species Observed During Field Surveys in 2020 and 2021(WP Bowman)
2Based on New York State Breeding Bird Atlas(McGowan and Corwin,2008);Y=Yes,Breeding is known to occur in local Breeding
Bird Atlas Blocks(Blocks#7054C,7054D,6954D,6953B,and 7053A);N=No,Breeding is not known to occur in local Breeding Bird
Atlas Blocks.
3Y=Species can be found year round;M=Species can be found in summer months only(for breeding birds)or species can be found
during spring or autumn migrations;O=Species are expected to overwinter
Mammals
Mammal species (or scat/sign of these species) observed at the site include gray squirrel (Sciurus
carolinensis), eastern chipmunk (Tamias striatus), meadow vole (Microtus pennsylvanicus), white-
footed mouse (Peromyscus leucopus), raccoon (Procryon lotor), and white-tailed deer (Odocoileus
virginianus). Table 22 provides a list of all mammal species observed or expected to occur on site
based on habitat preferences (Connor, 1971)and the ecological communities present.All observed or
expected mammals are common in suburban landscapes; prefer open, early successional habitats;
and/or are tolerant of human activity.
Bat species that utilize forested habitats on Eastern Long Island include big brown bat (Eptesicus
fuscus), eastern red bat (Lasiurus borealis), and northern long-eared bat (Myotis septentrionalis)
(Fishman, 2013; Connor, 1971). Big brown bat and red bat are habitat generalists typically foraging
in forest edges,open habitats,and over wetlands and surface waters. Northern long-eared bats utilize
a wide variety of upland woodland and forest types (NYNHP, 2016),but are typically associated with
mature interior forest(Carroll et al, 2002) and tend to avoid woodlands with significant edge habitat
(Yates and Muzika 2006). Other studies have found that northern long-eared bat can also be found
using younger forest types (NYNHP, 2016). Recent bat monitoring conducted by the NYSDEC has
suggested that northern long-eared bats on eastern Long Island are not sensitive to forest patch size
and may utilize forest patch as small as one acre (Hoff, 2019). The northern long-eared bat(Myotis
septentroinalis)was listed in 2016 as threatened by the U.S.Fish and Wildlife Service(USFWS)and the
NYSDEC.
The project site may provide habitat for these bat species during the summer months and migration
periods in the spring and autumn. There is growing evidence that northern long-eared bat also
overwinter on eastern Long Island, hibernating in human structures and foraging for winter-flying
moths when temperatures exceed VC (Hoff,2019). During the summer months,bats are expected to
129
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
forage within the site's forest,forest edge,and successional shrubland habitats and over the wetlands
and surface waters of Mattituck Creek. Tree cavities and crevices serve as day roots for these species,
with human structures also used by big brown bat.
Table 22-Mammal Species Observed/Expected On-Site
Scientific Name Common Name
Blarina brevicauda Short-tailed Shrew
Didelphis virginiana Virginia Opossum
Eptesicus fuscus Big Brown Bat
Lasiurus borealis Eastern Red Bat
Marmota monaxl Woodchuck
Microtus pennsylvanicusl Meadow Vole
Mus musculus House Mouse
Myotis lucifugus Little Brown Bat
Myotis septentrionalis Northern Long-eared Bat
Odocoileus virginianus' White-tailed Deer
Peromyscus leucopusl White-footed Mouse
Pitymys pinetorum Pine Mouse
Procyon lotorl Raccoon
Rattus norvegicus Norway Rat
Scalopus aquaticus Eastern Mole
Sciurus carolinensis1 Gray Squirrel
Sorex cinereus Masked Shrew
Sylvilagus floridanus1 Eastern Cottontail
Tamias striatusl Eastern Chipmunk
Vulpes vulpes Red Fox
'Indicates species or sign observed on-site.
Reptiles and Amphibians
Few species of reptiles and amphibians are expected to occur on the subject site due to the absence of
freshwater habitats. The species that are expected to be present based upon site observations,existing
habitat types,and the New York State Herpetological Atlas(NYSDEC,2009)are listed in Table 23. The
New York State Herpetological Atlas provides known records of reptile and amphibian species from
1990-1998 for each 7.5-minute USGS topographic quadrangle within New York State. The expected
reptile and amphibian species listed in Table 5 in Appendix N are based on the Southold, NY
quadrangle. The eastern box turtle(Terrapene caroling)is listed as a New York State Species of Special
Concern and is a common inhabitant of dry and moist woodlands, brushy fields, marsh edges, and
bottomlands (Massachusetts Division of Fisheries and Wildlife, 2015). Redback salamander can be
found in woodlands throughout New York State. The common and ubiquitous garter snake can be
found in various woodlands,fields,and suburban habitats.
Table 23-Reptile and Amphibian Species Observed/Expected On-Site
Scientific Name Common Name
Plethodon cinerus cinerus Redback Salamander
Terrepene carolinal Eastern Box Turtle
130
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Scientific Name Common Name
Thamnophis sirtalisa Common Garter Snake
1 Indicates species or sign observed on-site.
Endangered, Threatened,Rare Species or Significant Ecological Communities
No endangered, threatened, or rare species or significant ecological communities were observed
during the ecological surveys conducted. Consultations were undertaken with the New York Natural
Heritage Program(NYNHP)and in correspondence dated December 1,2020,the NYNHP indicated the
piping plover(Charadrius melodus),a New York State threatened species,is the only record of a known
occurrence of a rare or state-listed animal or plant or significant natural community on or in the
vicinity of the site (Appendix 1 in Appendix N of this DEIS). Piping plovers nest at Breakwater Beach
located more than 0.5 miles away on the west side of Mattituck Inlet. There is no breeding or foraging
habitat for piping plover present on the site.
The NYSDEC EAF Mapper (https://gisservices.dec.ny.gov/eafmapper/) indicated the potential for
southern sprite (Nehalennia integrecollis), a damselfly listed as a Species of Special Concern in New
York State,to occur in the vicinity of the project site. Southern sprite are found in coastal plain ponds
on Long Island(NYNHP,2010).Due to the absence of suitable habitat,Southern spite are not expected
to occur on the subject property.
As described above, the site contains habitat that could be utilized by the northern long-eared bat
(Myotis septentrionalis) during the summer months for foraging and diurnal roosting. The northern
long-eared bat was listed as threatened by both the USFWS and New York State in 2016 due to
population declines caused by white-nose syndrome (WNS), a disease caused by an invasive fungus
that kills affected hibernating bats during the winter months. Northern long-eared bats roost during
the daytime in cavities or crevices of living trees and snags (i.e., standing dead trees) or underneath
loose or exfoliating bark. The site has large trees with loose bark, such as red maple and white oak,
and potential for cavities in live trees or snags. Due to the northern long-eared bat's potential use of
diverse upland forest types and the presence of large trees with loose bark,this species may utilize the
site for foraging and roosting habitat in the summer months.
The availability of summer habitat is not limiting for northern long-eared bat Accordingly, loss of
summer habitat is not recognized as a threat to the conservation of this species(USFWS,2016);rather,
WNS is the primary threat to northern long-eared bat within its summer habitats.
Three species listed as Species of Special Concern by New York State are expected to occur on or utilize
the site. Species of Special Concern are species for which a welfare concern or risk of endangerment
has been documented in New York State. These three species include:
Table 24-Species of Special Concern
Eastern Box Turtle Terrapene carolina
Cooper's Hawk Accipiter cooperii
Sharp-shinned Hawk Accipiter striatus
131
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Eastern box turtle (Terrapene carolina) may be found in a wide variety of habitats including in open
deciduous forests, woodlands, forested bottomlands, open field and field edges, thickets, marshes,
bogs,and stream banks. Eastern box turtles are expected to be found in any of the vegetated upland
habitats on the site. Eastern box turtles are threatened by development of their habitat,mortality on
roadways,mortality from mowing of lawns and early successional habitats,and collection as pets.
Cooper's hawk(Accipitercooperii)and sharp-shinned hawk(Accipiterstriatus)inhabit various upland
and wetland forests during the breeding season including fragmented forests within agricultural,
suburban, and urban landscapes, with sharp-shinned hawks preferring forest edge habits. Cooper's
hawks breeding sites have been expanding in New York over the last several decades. Cooper's hawks
prefer to nest in forests with a closed canopy,trees that are more than 30 years old,and moderate to
heavy shrub cover(Beans and Niles,2003). The site's Coastal Oak-Beech forests provide suitable,but
not optimal,nesting habitat due to the relative absence of shrub cover. Sharp-shinned hawks were not
documented to nest anywhere in Nassau or Suffolk Counties by McGowan and Corwin(2008). During
the winter months,both species frequent residential areas to hunt for songbirds at bird feeders. Both
species are expected to utilize the subject site as foraging habitat during any season.
Forest Resources
As noted in the Ecological Report, the Town of Southold is comprised largely of agricultural and
residential land uses, which collectively account for 63± percent of the Town's land area. Based on
analysis of the 2016 National Land Cover Data obtained from the Multi-Resolution Land
Characteristics Consortium (MRLC), approximately 4,500 acres of forest cover is present within the
Town of Southold. Forest cover accounts for approximately 2.42 percent of the Town of Southold's
land area interspersed within these predominantly agricultural and residential lands(see Figure LC-1
in the Ecological Report). The Town's forests are located on lands with various existing uses including
open space and recreation, residential, agricultural, and commercial land uses. The Mattituck Creek
watershed has relatively higher proportions of existing forest cover compared to the entire Town.
Specifically,forest cover is approximately 15 percent(340 acres) of total land area within the 2,259±-
acre 25-year contributing watershed of Mattituck Creek(SCDHS,2020) (Figure LC-2).
Ecosystem services provided by forests include: habitat for birds and other wildlife; maintaining
groundwater and surface water quality;soil and sediment stabilization;removal of air pollutants such
as nitrogen and sulfur oxides, ozone, volatile organic compounds (VOCs), and particulates;
atmospheric carbon uptake; and groundwater recharge. The loss of these 5±acres of forest would
result in a reduction of the ecological benefits and ecosystem services provided by these forests and
contribute incrementally along with other forest losses in the Town and Mattituck Creek watershed to
an overall loss of forest ecosystem services. Other forest losses in the Town are largely related to
residential development, which has resulted in 5,336 new residential units within the Town since
1980.
Tree Survey and Identification
Pursuant to §280-133(B)(2)(c) of the Town of Southold Town Code, site plan applications must
identify, "The location of existing natural features, including but not limited to... trees of six inches in
132
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
diameter at a point three feet above the trunk base." As such, as part of this DEIS, a tree survey was
prepared by LUES which included the field identification of all trees greater than 6-inches in diameter.
The total number of trees within the subject property boundary with diameters greater than 6-inches
is 2,408±.Approximately 1,054 trees are on the R-80 zoned portion and approximately 1,354 trees are
on the M-II zoned portion.Twenty-six tree species were recorded. Dominant tree species present were
various oaks including black oak(10.8 percent),scarlet oak(7.6 percent),white oak(5.8 percent),and
chestnut oak (3.4 percent); American beech (19.2 percent); red maple (11.3 percent); black locust
(11.0 percent);black cherry(8.3 percent),eastern red cedar(6.2 percent),and sassafras(5.8 percent).
The mean diameter of the sampled trees was 11.9-inches. Large trees are abundant on the property
with trees greater than 18-inches in diameter accounting for 12.7 percent of sampled trees.
2.4.2 Potential Impacts
The proposed action has a construction footprint of 6.51±acres resulting in the physical disturbance
and permanent loss of 4.32± acres of high-quality Coastal Oak-Beech forest, 1.19± acres of southern
successional hardwood forest, and 0.54± acre of successional shrubland (see Table 25, as excerpted
from Table 6 of the Ecological Report). The loss of successional shrubland habitat is associated with
the proposed 16-foot-wide haul road traversing the site from the proposed excavation areas to Mill
Road. Upon implementation of the proposed action,the acreage of buildings,impervious surfaces,and
gravel driveways and parking areas would increase from 3.70± acres to 8.37± acres and would then
comprise approximately 25.4 percent of the site.
The Bulk Schedule requirements for properties in the M-11 Zoning District require a minimum of 20
percent(3.29 acres) of the 16.46±acres in the M-11 zone to be maintained as landscaping or natural
areas under§280 (Zoning) of the Town Zoning Code. Under the proposed action, 6.46±acres within
the M-I1 zone (approximately 51.4 percent)would be maintained as natural vegetation comprised of
Coastal Oak-Beech forest and successional forest and 1.67 acres of plantings and landscaping
(including retaining wall plantings). As such,the proposed preservation of approximately 8.13 acres
of vegetation (i.e., 6.46± acres of existing natural vegetation and 1.67± acres of planted vegetation)
within the M-11 Zoning District is consistent with and substantially exceeds the 20 percent minimum
requirement pursuant to§280 (Zoning) of the Town Zoning Code.
Approximately 13.77 acres of southern successional hardwood forest and successional shrublands
would be retained;these areas are located on the western R-80 zoned portion of the property adjacent
to West Mill Road. Approximately 8.28 acres of Coastal Oak-Beech forest would be maintained on the
site, largely in the northern portion of the M-11 zoned property interspersed between existing
residential structures, with some forest along the southern property boundary in the R-80 zoned
portion. The approximately 0.63 acre of tidal wetlands located along the shoreline of Mattituck Creek
would be preserved under the proposed action.
133
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 25-Proposed Changes in Ecological Community Coverages
Existing %of Proposed %of Change in %Change
Existing Proposed Acres
Coastal Oak-Beech Forest 12.60 acres 38.2% 8.28 acres 25.1% -4.32 -34.3%
Successional Shrubland 10.83 acres 32.9% 10.29 acres 31.2% -0.54 -5.0%
Buildings and Paved
Surfaces(inclusive of
3.70 acres 11.2% 8.37 acres 25.4% +4.67 +126.2%
gravel and stone blend
pavement)
Successional Southern
4.67 acres 14.2% 3.48 acres 10.6% -1.19 -25.5%
Hardwoods
Unvegetated Sand Slope 0.29 acres 0.9% 0.0 acres 0.0% -0.29 -100.0%
Tidal Wetlands 0.63 acres 1.9% 0.63 acres 1.9% 0.0 0.0%
Mowed Lawn with Trees
0.24 acres 0.7% 1.91 acres 5.8% +1.67 +695.8%
and Landscaping
Total Site 32.96 acres 100% 32.96 100%
Potential Impacts to Forest Resources
Approximately 11.76 acres of forests (8.28 acres of Coastal Oak-Beech Forest and 3.48 acres of
Successional Southern Hardwoods) would be retained on the subject property under the proposed
action;however,5.51±acres of the 6.51±-acre Project Area currently consists of upland forest habitat.
These 5.51± acres of forest area to be developed comprise 32 percent of the upland forests on the
subject property and 34 percent of the site's Coastal Oak-Beech forest.
A tree survey of all site trees greater than 6-inches in diameter was performed by Dr.Bowman and is
included in Appendix B of the Ecological Report. Based on the preliminary site plan, the proposed
development would result in the clearing/removal of approximately 634 trees. Of the 634 trees, 15
trees would be removed from the R-80 zoned portion of the subject property and 619 trees would be
removed from the M-11 zoned portion of the subject property.Table 26 below provides a breakdown
of tree removal from each portion of the subject property.
Approximately 70 percent of the trees proposed for removal consist of various oak(Quercus sp.) and
American beech trees with an average size of 12.8-inches diameter at breast height (DBH). The
remaining 30 percent are comprised of Norway Maple (Ater platanoides), Red Maple (Ater rubrum),
Tree of Heaven (Ailanthus altissimo), Shadbush (Amelanchier canadensis), Gray Birch (Betula
populifolia), Pignut Hickory (Carya glabra), Flowering Dogwood (Cornus florida), Autumn Olive
(Eleagnus umbellata),American Beech (Fagus grandifolia), Eastern Red Cedar Uuniperus virginiana),
Apple (Malus sp),Mimosa(Albizzia julibrissin),White Mulberry(Morus alba),Pitch Pine (Pinus rigida),
Japanese Black Pine (Pinus thunbergii), Cottonwood (Populus deltoides), Bigtoon Aspen (Populus
grandidentata), Bird Cherry (Prunus avium), Black Cherry (Prunus serotina), Black Locust (Robinia
pseudoacacia),and Sassafras(Sassafras albidum).
134
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 26-Tree Clearing Data (>6-inch Diameter)
Description Quantity Percent
R-80 to Be Cleared is 0.62
M-11 to Be Cleared 619 25.7
Total to Be Cleared 634 26.3
R-80 Trees to Remain 1,039 43A
M-11 Trees to Remain 735 30.5
Total 4 of Trees to Remain at Subject Property 1,774 73.7
Total 4 of Trees (>6-inch diameter)within 2,408
Boundary of Subject Property
Proposed On-Site Tree Plantings 135
Overall,upon implementation of the proposed action, 73.0±percent of all trees on the overall subject
property (i.e., 1,740 of the 2,408 total trees) would be retained. Approximately 54.2 percent of the
trees in the M-11 Zoning District (i.e., 735 of the 1,354 trees on the M-11 zoned portion) would be
retained.
As noted in the Existing Conditions section, the Coastal Oak-Beech forests on the subject property
consist of 1,647±American beech,oak,hickory,red maple,and sassafras trees. Upon implementation
of the proposed action, approximately 66.8 percent of these native trees would be retained. In
addition,under the proposed action,approximately 66 percent of the trees greater than 12-inches in
DBH would be preserved. Additionally, approximately 86 Pitch Pine trees, as well as shrubs and
groundcover, would be established in a 27,333 SF planting area along the new forest edge
(predominantly pitch pine) with an additional 40 small trees, including Staghorn Sumac and
Shadbush,on the proposed retaining wall.
Edge Effects
Some of the 8.28± acres of Coastal Oak-Beech forest and 3.48± acres of successional southern
hardwoods to be maintained under the proposed action would be adversely impacted by the creation
of new forest edges. Forest edges exhibit differences in microclimate,plant composition,plant density,
and habitat quality compared to forest interiors. Accordingly, forest edges are often utilized by
different wildlife and plant species compared to forest interiors. Studies have found that the changes
in microclimate in forests (i.e.,ambient light,air and soil temperatures,wind speed,relative humidity,
etc.) occur up to 195-feet from the north-and east-facing forest edges
The subject property has approximately 12.60±-acres of Coastal Oak-Beech forest. Due to the
historical disturbances associated with clearing for agricultural uses,commercial marine construction,
and construction of two residential structures, much of the existing Coastal Oak-Beech forests are
currently (or were previously) subjected to edge effects from adjacent clearing or development.
Approximately 3.52 acres of the existing Coastal Oak-Beech forests are currently located more than
195-feet from an existing forest edge associated with the commercial marina or residential structures.
The proposed project would result in a new forest edge and, accordingly, result in changes in
microclimate that will penetrate up to 195-feet into the existing Coastal Oak-Beech forests. Under
135
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
post-project conditions, all of the site's 8.28± acres of Coastal Oak-Beech forests would be less than
195-feet from existing or new forest edges.
The new forest edge would likely result in an intensification of the existing edge effects at the site,
likely resulting in colonization and increased growth of invasive plant species and reduction in habitat
quality for nesting songbirds, and increased abundance of predators and invasive competitors. In
addition, the proposed project may result in increased numbers of invasive birds, such as European
starling(Sternus vulgaris),house sparrow(Parus domesticus),and brown-headed cowbird(Molothrus
ater),as these birds thrive in habitats created by humans and often nest on or in buildings.
After construction,mature trees that were formerly located in sheltered interior sites would be located
at or proximal to the new forest edge, and thus, exposed to increased wind and wind-blown salt,
particularly during coastal storms.Tree species that would be located at this new edge include species
that are typically tolerant of coastal conditions and wind-blown salt(such as oaks and American beech)
and/or species that are tolerant of disturbed habitats(such as sassafras,bird cherry,and black locust).
However,increased mortality in these new edge trees is expected post-construction due to windthrow,
disturbance to roots/root injury,and salt pruning.
As mitigation,the magnitude of the potential adverse impacts of new edge effects would be reduced
by the planting of 27,333 SF of native trees and shrubs along the new forest edge. This planted area is
approximately 20-30 feet wide and would include multi-layered plantings (i.e. trees, shrubs, and
herbaceous plants that at maturity will occupy ground-,understory-,and canopy-levels)with conifer
trees (i.e. 86 pitch pine trees) to minimize light penetration into the new forest. This planting area
would also include 57 lowbush blueberry shrubs and 4,295 switch grass plants. After establishment
of these natural vegetation areas located landward of the proposed retaining wall,the total forest area
on the property would increase from 11.76-acres to 12.38-acres.
Potential Impacts to Mill Road Preserve
The subject property is adjacent to the 27±-acre Town of Southold Mill Road Preserve located between
Mill Road and the residential properties on North Drive. The Mill Road Preserve has an ecological
community composition similar to the subject property with successional shrublands and forest
proximal to Mill Road and Coastal Oak-Beech forests located to the east The project would result in
the creation of a new forest edge approximately 105 feet from the Mill Road Preserve boundary along
a short reach (approximately 99 feet) of the shared property boundary located in the northeastern
corner of the Preserve. As shown in the 1962 aerial image (see Figure 1 in the Ecological Report),this
area is proximal to historical disturbance associated with the clearing, filling, and hardening of the
west shoreline of Mattituck Creek on the subject property in the 1950s-1960s. The existing oak-
dominated and successional forests in this portion of the property have regenerated on the bare,
exposed substrate (see Figure 1 in Ecological Report).
The potential impacts associated with the new forest edge could include potential changes to the forest
microclimate and increased abundance of invasive plants and wildlife species,as previously described.
These edge effects are expected to extend approximately 195 feet into Mill Road Preserve from the
northeastern corner of Mill Road Preserve. The total area of the Mill Road Preserve that may be
potentially impacted by edge effects associated with the new clearing limit on the SYC property is
136
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
approximately 0.38 acre (16,419±SF).
Existing residential properties are located along the eastern border of Mill Road Preserve,as shown in
Figure 4 in the Ecological Report. Therefore,the eastern border of Mill Road Preserve is expected to
have existing edge-related impacts due to past tree clearing on these residential properties and the
utility right-of-way and an increased abundance of invasive plants and nest predators and parasites.
Accordingly,some of this 0.38-acre area represents an intensification of an existing forest edge rather
than creation of an entirely new edge. The area subject to new or enhanced edge effects accounts for
approximately two percent of the 18±-acres of mature oak-beech forests in Mill Road Preserve. Thus,
the proposed action would not be expected to have significant adverse impacts on the forest habitat
quality or composition through the large majority of the Mill Road Preserve.
Furthermore, the magnitude of potential edge effects is expected to decrease over time due to the
proposed landscaping comprised of native trees, shrubs,and herbaceous plants including pitch pine
(Pinus rigida), lowbush blueberry (Vaccinium angustifolia), and switch grass (Panicum virgatum).
Proposed edge plants would facilitate the development over time of a dense "wall" of vegetation
comprised of maintained canopy trees,regenerating trees,and shrubs to fill in open space at the edge.
This "sealing" of the edge through development of multiple layers of vegetation may reduce the
penetration of light into the forest and decrease the depth of edge impacts towards the interior of Mill
Road Preserve.
Potential Impacts to Wildlife
The decreased habitat availability associated with the loss of 32 percent of the site's forest habitat
would likely decrease the abundance and diversity of the plant and wildlife species that utilize the site.
Wildlife that utilize the site's successional shrubland and successional forest habitats would not be
adversely impacted by the proposed action due to the maintenance of 13.77±acres(approximately 89
percent) of these successional habitats. Similarly, wildlife species that are habitat generalists and
utilize all of the site's habitats (i.e., successional habitats, forests, and developed areas) are also
unlikely to be adversely impacted by the proposed action, due to their general tolerance for human
activity. Examples of these habitat generalists include raccoon,opossum,and white-tailed deer as well
as birds such as American robin,common grackle,black-capped chickadee,blue jay,and wild turkey.
Wildlife species that are most likely to be adversely impacted by the proposed action,specifically the
reduction in Coastal Oak-Beech forest habitats from 12.60 acres to 8.28 acres, include birds or other
wildlife that inhabit mature forests,forest interiors,or have large patch size requirements. Songbirds
that are expected to utilize the site's Coastal Oak-Beech forests include species that forage for insects
on and under bark(such as woodpeckers and nuthatches),glean insects from canopy foliage (such as
vireos), and/or catch airborne insects (such as flycatchers and wood pee-weer). Some bird species
may be found in both small and large habitat patches,whereas other bird species are more frequently
found in larger habitat patches than smaller patches. Bird species that are not dependent on habitat
patch size and/or species that have tolerance for small habitat patches or edge habitats are likely to
continue to utilize the smaller wooded habitat patches remaining after completion of the project.
137
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Many of the bird species that inhabit the site and have been found to be insensitive to patch size,utilize
small forest patches (between 2.0 and 8.0 acres in area), or utilize edge habitats include American
robin (Turdus migratorius), gray catbird (Dumetella carolinensis), house wren (Troglodytes aedon),
Carolina wren (Thryothorus ludovicianus), common gracile (Quiscalaus quiscula), common flicker
(Colaptes auratus),tufted titmouse,(Baeolophus bicolor),black-capped chickadee(Poecile atricapillus),
blue jay(Cynaocitta cristata),cardinal(Cardinalis cardinalis),downy woodpecker(Picoides pubescens),
hairy woodpecker (Leuconotopicus villosus), red-bellied woodpecker (Melanerpes carolinus), white-
breasted nuthatch(Sitta canadensis),indigo bunting(Passerina cyanea),warbling vireo(Vireo glivus),
great-crested flycatcher (Myiarcgus crinitus), and American redstart (Setophaga ruticilla). These
species are expected to persist on the subject property,albeit at lower abundance due to less available
habitat and reduced habitat quality in remaining forests resulting from intensification of adverse edge
effects,including increased abundance of nest predators and nest parasites.
Forest bird species that are patch-size dependent during the breeding season and require relatively
large habitat patches or utilize the interior of forest habitat patches, such as red-eyed vireo (Vireo
olivaceous),ovenbird(Seiurus aurocapilla),black-and-white warbler(Mniotilta varia),veery(Catharus
fuscescens), wood thrush (Hylocichla mustelina), and scarlet tanager (Piranga olivacea) (Galli et al,
1976; Banner and Schaller, 2001) are less likely to utilize the site after the reduction from 12.60±to
8.28±acres of Coastal Oak-Beech forest. As discussed below,the existing forest patches at the site are
too small to provide high-quality breeding habitat of the most area sensitive forest birds,such as wood
thrush and scarlet tanager, and edge effects related to nest predation and nest parasitism are likely
already pervasive. The suitability of the site for some forest breeding birds may be lost as the available
habitat, 8.28± acres, drops below the published habitat patch size requirements for species such as
red-eyed vireo (Vireo olivaceous), ovenbird (Seiurus aurocapilla), and black-and-white warbler
(Mniotilta varia). However, these patch size-dependent bird species are likely to continue to utilize
the approximately 18-acres of Coastal Oak-Beech forest on the adjacent Mill River Preserve,as well as
smaller habitat patches during the spring and fall migrations.
The loss of the 5.51±acres of on-site forest contributes incrementally along with other forest losses in
the Town to a decrease in the number of habitat patches that are large enough to support stable
populations of forest birds. Other forest losses in the Town are largely related to residential
development,which has resulted in 5,336 new residential units within the Town since 1980 (Town of
Southold,2017).
None of the songbird species expected to utilize the subject property are listed as Endangered,
Threatened,or Species of Special Concern in New York State. Most of the bird species present on the
subject property are not listed on the USFWS Species Birds of Conservation Concern list (USFWS,
2021). In addition, the patch-size dependent bird species identified above, red-eyed vireo (Vireo
olivaceous), ovenbird (Seiurus aurocapilla), and black-and-white warbler (Mniotilta varia), are not
identified as Birds of Conservation Concern by the USFWS (USFWS, 2021). Accordingly, the
displacement or loss of habitat at the site for individuals of these abundant bird species, even those
that are patch-size dependent, is not likely to adversely impact the regional populations of these
species.
Many songbird populations have been declining in abundance in the Northeastern United States since
the 1970s. Two songbirds that may potentially utilize the site as breeding habitat are listed as"Species
of Greatest Conservation Need"in New York State. Species of Greatest Conservation Need are species
138
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
that are experiencing some level of population decline, have identified threats that may put them in
jeopardy,and need conservation actions to maintain stable population levels or sustain recovery. The
two songbird species that are classified as Species of Greatest Conservation Need that are expected to
utilize the site are wood thrush (Hylocichla mustelina) and the scarlet tanager (Piranga olivacea).
Wood thrushes typically breed in deciduous forests with an abundance of saplings and high density of
tall shrubs. Wood thrushes may breed in small habitat patches (2.5 to 12.5 acres) or smaller but have
been found to have lower nest productivity in these small habitat patches due to nest predation by
cowbirds,jays,crows,raccoons,and domestic and feral cats.
Scarlet tanagers prefer mature deciduous and mixed forests with tall trees,moderately open to closed
canopy,and well-developed understory. Scarlet tanagers breed successfully in large habitat patches.
Habitat patches in landscapes with 50 percent or less forest cover must be 30-170 acres in area to be
moderately to highly suitable for tanager breeding.
The site does not provide high quality breeding habitat for wood thrush or scarlet tanager due to (1)
the paucity of understory vegetation, (2)the relatively small area of the existing forest patch (12.60±
acres on property and approximately 37 acres with adjoining Mill Road Preserve), and (3) nest
predation due to proximity to existing forest edges and human development. Thus, the loss of the
4.32±acres of Coastal Oak-Beech habitat resulting from the proposed action would reduce habitat for
foraging (particularly during migration periods) for these species, but not result in the loss of high-
quality nesting habitat that would significantly adversely impact the populations of these two species
of Conservation Need.
The potential for the proposed action to generate noise from construction activities,vehicular traffic,
and operation of the proposed boat storage facility is analyzed in detail in the Acoustic Report (see
Appendix R). The analysis indicated existing noise conditions within the natural ecological
communities on the subject property are between 40-45 dBA. Analysis of potential noise levels at
nearby residential sites(such as 5106 West Mill Road,800 North Drive,and 805 North Drive)indicated
that noise levels in the property's natural areas may increase temporarily during project construction
to 66 dBA during tree removal/grubbing (in December), 76 dBA during excavation phases (between
December to June), and 71 dBA during building and drainage construction phases (between June to
November). Under the proposed build conditions,noise levels are expected to increase slightly by 3-
4 dBA from 40-45 dBA to 44-48 dBA. Under proposed build conditions,sound levels will not increase
by more than 6 dBA above existing conditions and,therefore,is consistent with"no impact"following
NYSDEC standards for impacts to human receptors. As there are no standards for wildlife,the human
standards were applied.
Noise pollution associated with industrial activities, roads, and major highways has been found to
result in ecological impacts such as lower bird breeding densities and poorer body condition. For
example,chronic industrial noise levels of 75-90 dBA generated by compressor stations on natural gas
pipelines in Alberta, Canada resulted in a 15 percent decrease in the observed breeding ovenbirds
pairs (Seiurus aurocapilla) in forests adjacent to the compressor stations and 15-to-66-percent
decrease in other species including red-breasted nuthatch (Sitta canadensis), red-eyed vireo (Vireo
olivaceous), and yellow-rumped warbler (Dendroica coronata). Anthropogenic noise was also found
to increase stress and reduce body condition in songbirds,but not adversely impact survivorship, in
urban habitats compared to more rural habitats. Simulated roadway noise that increased noise levels
(Leq)by 11-20 dBA experienced by birds was found to alter the species composition and abundance
139
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
of the avian community, alter foraging and nesting behavior, and reduce nestling body condition.
Potential impacts to birds adjacent to these industrial facilities and simulated roadway noise was
attributed to increasing stress levels; noise interference with bird songs used to attract mates and
defend breeding territories;and altered foraging and nesting behavior.
Over the long-term,the maximum projected noise levels would remain under 50 dBA and would not
increase by more than 4 dBA compared to existing conditions. This increase in sound levels is less
intense than the industrial sources and simulated roadway noise that have been documented in the
scientific literature to adversely impact birds; thus, no long-term noise-related impacts to birds and
bird habitat expected to result from the operation of the proposed boat storage facility.
Potential noise levels during daytime construction hours over the 12-month construction period(45-
76 dBA compared to 44 dBA under existing conditions) slightly overlap with the range of the chronic
industrial levels (75-90 dBA)that have been found to impact bird breeding productivity(Habib et al,
2007) and are similar to the change in sound levels (11-20 dBA) that have been found to adversely
impact bird community composition and abundance, foraging and nesting behavior, and body
condition. It should be noted that potential noise impacts during construction would only occur
during daytime construction hours and noise levels would return to background conditions; in
contrast, studies identifying adverse impacts to birds due to noise have analyzed more continuous
noise associated with industrial facilities and large roadways. However,due to the increase in daytime
noise levels,it is expected that a temporary reduction in the habitat quality provided by the adjacent
forest for bird reproduction would occur during the construction period. Mitigation measures to
lessen the magnitude of short-term, noise-related impacts during construction to neighbors are
discussed in the Acoustic Report and include the use of white noise back-up alarms rather than single,
tone beeps;no use of Jake Brake mechanisms on site;and use of dump trucks that meet USEPA Tier 4
standards, These mitigation measures would serve to reduce potential impacts to birds and wildlife
by decreasing high frequency noise.
No adverse impacts to wildlife or wildlife habitat are expected to result from new outdoor lighting
associated with the proposed action, The proposed lighting shall be dark skies-compliant,downward
directed lighting resulting in no increase in light levels beyond the limit of the proposed buildings,
access roads,and parking surfaces.
Potential impacts to Endangered, Threatened,Rare Species or Significant Ecological Communities
As indicated in Section 2.4.1 of this DEIS, there were no endangered, threatened, or rare species or
significant ecological communities were observed during the ecological surveys conducted and the
NYNHP indicated the piping plover(Charadrius melodus),a New York State threatened species,on or
in the vicinity of the site. However,the piping plovers nest at Breakwater Beach,which is located more
than 0.5± mile from the subject property and there is no breeding or foraging habitat present on the
site. As such,there would beno impacts to piping plover.
The NYSDEC EAF Mapper (htt s: isservices.dec.n ov eaf napper�) indicated the potential for
southern sprite (Nehalennia integrecollis), a damselfly listed as a Species of Special Concern in New
York State,to occur in the vicinity of the project site. However,as southern sprite are found in coastal
plain ponds on Long Island and there is no such habitat on the subject property, there would be no
impacts to this species.
140
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As described in the Wildlife section below, the site contains habitat that could be utilized by the
northern long-eared bat(Myotis septentrionalis) during the summer months for foraging and diurnal
roosting. The NYSDEC recommends that any cutting of trees occur during the winter months(between
December 1 and February 28)to avoid a potential take of this protected species.As such,the proposed
tree removal would be scheduled to occur within this timeframe. Accordingly,no adverse impacts to
northern long-eared bat populations would result from the proposed action. It is also noted that the
winter cutting of forest trees would also minimize potential impacts to breeding wildlife and birds.
Three species listed as Species of Special Concern by New York State are expected to occur on or utilize
the site. These three species include:
Eastern Box Turtle Terrapene carolina
Cooper's Hawk Accipiter cooperii
Sharp-shinned Hawk Accipiter striatus
Eastern box turtles are expected to be found in any of the vegetated upland habitats on the site. The
project would result in a loss of approximately 6.05 acres of upland forest and shrubland habitat for
eastern box turtle. Potential adverse impacts to eastern box turtle would be avoided or minimized by
conducting sweeps or surveys for box turtles prior to commencement of clearing, grading, and
excavation activities, and relocation of any observed turtles to on-site areas that would not be
disturbed.Silt fencing or other barriers would be installed around work areas to prevent turtles from
returning to construction areas.
Cooper's hawk(Accipitercooperii)and Sharp-shinned hawk(Accipiterstriatus)inhabit various upland
and wetland forests during the breeding season, including fragmented forests within agricultural,
suburban, and urban landscapes, and with sharp-shinned hawks preferring forest edge habits. The
site's Coastal Oak-Beech forest provides suitable,but not optimal, nesting habitat due to the relative
absence of shrub cover. Sharp-shinned hawks were not documented to nest anywhere in Nassau or
Suffolk Counties. During the winter months, both species frequent residential areas to hunt for
songbirds at bird feeders and during any season, are expected to utilize the subject site as foraging
habitat. While the proposed action would result in a loss of foraging habitat and degradation of habitat
quality for Cooper's hawk (Accipiter cooperh) and Sharp-shinned hawk (Accipiter striatus), these
species would likely continue to hunt the human-tolerant songbirds and doves that could be expected
on the developed portion of the property and the remaining Coastal Oak-Beech and successional
woodlands.
Potential Impacts to Tidal Wetlands
No physical disturbance to the small area(0.63-acre)of intertidal marsh and high marsh tidal wetlands
on the southern end of the property is proposed and, accordingly, there would be no loss of tidal
wetland area resulting from the proposed action.
Construction and waterfront development actions may result in indirect impacts to adjacent and
proximal wetlands through stormwater runoff(both during construction and under future conditions)
that may transport sediments or pollutants to these wetlands, increased nutrient loading to surface
waters and wetlands from sanitary systems,and erosion due to increased vessel wakes. The wetlands
141
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
and surface waters of Mattituck Creek are designated as a Significant Coastal Fish and Wildlife Habitat
and threats to these wetlands identified by the NYSDOS include any activity that would substantially
degrade the water quality in Mattituck Creek or would adversely affect the biological productivity of
this area including chemical contamination, oil spills, excessive turbidity, and waste disposal
(including vessel wastes). Long Island's tidal wetlands are also adversely impacted by other factors
including sea level rise, eutrophication of estuarine waterbodies, low sediment supply, expansion of
invasive Phragmites australis,erosion caused by recreational and commercial vessel wakes,and other
factors. The seaward edge of tidal marshes along creek banks,particularly in large tidal channels such
as Mattituck Creek,are subject to erosional forces from wind-driven waves during storms and vessel
wakes. Mattituck Creek is subject to a 5-mph (no wake zone) enforced by the US Coast Guard and
Town of Southold Bay Constable to maintain safe navigational conditions. No wake zones reduce the
potential for the erosion of marsh edges due to vessel wakes.
The proposed action provides several mitigation measures and best management practices to
minimize the potential for adverse impacts to the 0.63-acre of on-site tidal wetlands and the
approximately 60 acres of tidal wetlands located in Mattituck Creek.
The proposed action would not substantially increase vessel traffic within Mattituck Creek. The
proposed action includes two buildings for the purpose of winter boat storage. The project does not
include the use of these buildings year-round, does not propose year-round boat traffic in an out of
SYC,does not propose any additional docks,nor does it propose the use of any existing facilities at SYC
to house boats that arrive to the site for storage. It is estimated that approximately 88 boats per off-
season would be stored in the new buildings. Accordingly, given a 12-week timeframe for entry to
storage in the fall and the same timeframe to remove boats from storage in the spring,this equates to
an average of approximately seven(7)boats per week or one-to-two boats per day. It is estimated that
approximately 547 boats are active in Mattituck Creek on a peak season day, which occurs in the
summer season(i.e.,July or August),when temperatures are higher. The entry and return of boats to
the water from storage would occur outside of this peak season day. However,even if the increase of
one-to-two boats per day were to occur on a peak season day, this would equate to 0.18-to-0,36
percent increase in boat traffic,which is nominal and would not impact tidal marshes due to vessel
traffic.
The proposed action provides for stormwater management that would serve to minimize potential for
degradation of existing tidal wetlands and water quality through nutrient or sediment pollution, The
proposed development shall be constructed under the requirements and specifications of a SWPPP
prepared in accordance with the NYSDEC SPDES General Permit No. GP-0-20-001 and Chapter 236
"Stormwater Management" of the Town Code. The site's SWPPP includes both permanent and
temporary best management practices to minimize potential impacts from stormwater runoff to
surface waters of the site's wetlands and Mattituck Creek. Temporary best management practices
would also be employed to prevent erosion and transport of sediments, litter, and debris during
construction actions, and include silt fences, silt sack inlet protection, soil stockpile protection
measures, temporary seeding and mulching, stabilized construction entrances, and designated
concrete wash-out areas.
Permanent infrastructure practices installed to collect, treat, and infiltrate stormwater shall include
stormwater catch and leaching basins and French drains to collect stormwater runoff generated by a
two-inch rainfall event from the roofs of the proposed buildings. Two of the existing metal warehouse
142
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
buildings would also be connected to the proposed stormwater management infrastructure,reducing
transport of sediments,nutrients,and pollutants to Mattituck Creek from these existing structures.
Nutrient loading to adjacent surface waters has adverse impacts to tidal wetlands due to potential
smothering of wetland grasses by rafts of marine algae, increased marsh bank instability, and
expansion of invasive Phragmites at the landward edge of marshes. SYC operates a pump-out vessel
to minimize potential for unauthorized discharge of waste holding tanks and maximize compliance
with the Mattituck Harbor and Long Island Sound No Discharge Zones. Nutrient reduction measures
included in the proposed action include the replacement and up-grade of the existing conventional
sanitary system that services the existing office,marina,and other buildings with an I/A OWTS,and a
new I/A OWTS to service the proposed boat storage buildings. Both I/A OWTS shall conform with the
Suffolk County Sanitary Code and are designed to reduce total nitrogen in treated effluent to 19 mg/L
and remove an average of 70 percent of influent nitrogen concentrations. The proposed I/A OWTS
upgrades ensure that the proposed action would not contribute additional nutrient loading to
Mattituck Creek (and potential adverse impacts to wetlands) and represents an improvement
compared to nutrient loading under existing site conditions.
Based on the above,no significant adverse impacts to tidal wetlands located on-site or within Mattituck
Creek are expected to result from the proposed action. No physical disturbance to tidal wetlands is
proposed,and the project provides for mitigation measures that would contribute to potential surface
water quality and habitat quality improvements in Mattituck Creek,such as new I/A OWTS's and new
stormwater drainage infrastructure.
2.4.3 Proposed Mitigation
The following measures have been incorporated into the proposed development to mitigate any potential
adverse impacts to ecological resources including forests,wildlife,and wetlands:
• Approximately 8.28 acres of Coastal Oak-Beech forests on the subject property
(approximately 66 percent of the existing 12.60± acres) will be retained. These remaining
Coastal Oak-Beech forests retain 70 percent of the site's oak (Quercus sp.), American beech
(Fagus grandifiolia), red maple (Acer rubrum), hickory (Carya sp.), and sassafras (Sassafras
albidum)trees.
• Overall,the projectretains 11.76±acres of forest habitat(comprised of Coastal Oak-Beech and
successional forests),75.4 percent of the site's approximately 2,400 trees,and 70.6 percent of
all trees greater than 12-inches in diameter.
• To mitigate for the loss of forest trees associated with the project,a total of 135 trees would
be replanted,including 86 pitch pine trees (minimum 4-5 feet height)to be planted along the
western and southern edges of the proposed development. In addition, the Applicant will
contribute 50 native trees (10-gallon container typical 1-inch caliper, 5-6 feet tall) for
installation at high-priority sites with the Town of Southold, as identified by the Town Tree
Committee,to enhance and beautify public grounds.
143
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• To mitigate for potential noise impacts to birds and wildlife during construction, the use of
white noise back-up alarms rather than single,tone beeps would be used,there would be no
Jake Brake mechanisms on the site,and all trucks would be U.S.EPA Tier 4-compliant.
• The proposed project will shiftthe eastern edge of the existing forests up to 520-ftto the west.
To mitigate the edge effects and potential habitat degradation in the retained forests on the
subject property and the Town of Southold Mill Road Preserve,the following measures will be
undertaken:
o Planting 27,333± SF of native trees, shrubs and groundcover along the new forest
edge. This planted area is approximately 20-to-30 feet in width and will include
dense, multi-layered plantings (i.e., plants that at maturity will occupy understory,
and canopy-levels)with abundant conifer trees(86 pitch pine trees)to minimize light
penetration into the new forest. After establishment of these natural vegetation
areas located landward of the proposed retaining wall,the total forested area on the
subject property will increase from 11.76 acres to 12.39 acres.
o The proposed retaining wall features topsoil-filled planting trays that will planted
with native ground-vegetation, shrubs, and small trees. Native species that will be
planted on the retaining wall include bayberry (Morelia pensylvanica), staghorn
sumac (Rhus typhina), shadbush (Amelanchier canadensis), groundsel bush
(Baccharis halimifolia), Virginia creeper (Parthenocissus quinquefolia), switch grass
(Panicum virgatum), and common milkweed (Asclepias syriaca). The vegetation
established on the proposed retaining wall will serve to further reduce the intensity
of the new forest edge.
• The proposed activities include construction of a stormwater management system that will
collect, treat, and infiltrate stormwater generated from a two-inch rainfall event from the
roofs of the proposed buildings. Stormwater management infrastructure shall include catch
and leaching basins and French drains. Two of the existing metal warehouse buildings will
also be connected to the proposed stormwater management infrastructure, reducing
transport of sediments, nutrients, and pollutants to Mattituck Creek from these existing
structures.
• Nutrient reduction measures included in the proposed action include the replacement and up-
grade of the existing conventional sanitary system that services the existing office, marina,
and other buildings with an I/A OWTS, and a new I/A OWTS to service the proposed boat
storage buildings. Both new I/A OWTS shall conform with the Suffolk County Sanitary Code
and are designed to reduce total nitrogen in treated effluent to 19 mg/L and remove an
average of 70 percent of influent nitrogen concentrations. The proposed I/A OWTS upgrades
ensure that the proposed action does not contribute additional nutrient loading to Mattituck
Creek(and potential adverse impacts to wetlands)and represents an improvement compared
to nutrient loading under existing site conditions.
• All tree clearing for the proposed action will occur during the winter months (between
December 1 and February 28)in accordance with NYSDEC guidance to avoid potential impacts
144
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
to the New York State-threatened northern long-eared bat (Myotis septentrionalis), as the
site's forests provide suitable summer roost habitat for this species.
• To avoid or minimize potential impacts to eastern box turtles, sweeps or surveys for box
turtles will be conducted prior to commencement of clearing, grading, and excavation
activities, and any observed turtles will be relocated to areas that will not be disturbed. Silt
fencing or other barriers will be installed around work areas to prevent turtles from returning
to construction areas.
145
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.0 HUMAN ENVIRONMENTAL RESOURCES
3.1 Consistency with Community Plans and Studies
3.1.1 Existing Conditions
There are numerous plans that guide the land use and development patterns in the Town of Southold,
within the hamlet of Mattituck, and specific to the proposed development application at the subject
property. Several plans exist at the Town level, including the 2020 Comprehensive Plan, Town of
Southold LWRP, Mattituck Watershed Management Plan, and Chapter 275 (Wetlands) in the Town
Code. Other plans and regulations exist at the County level for the protection of water resources,
including Articles 6, 7,and 12 of the SCSC. At the State level,the relevant regulations of Article 25 of
the ECL(Tidal Wetlands)and the implementing regulations at Part 661 apply.
The Amended Final Scope adopted April 5, 2021 by the Planning Board requires each of the
aforementioned plans to be considered and consistency of the proposed action therewith to be
evaluated. This section sets forth a general background for each plan, followed by an impact
assessment in Section 3.1.2 of this DEIS.
Existing Land Uses
As discussed in Section 1.1.2 of this DEIS, the land uses within a 1,000-foot radius of the subject
property include a mixture of maritime, agricultural, recreational open space, and single-family
residential uses (see Figure 4 in Appendix A). The corresponding photographs were taken in
September 2020, March 2021, April 2021, and June 2021 to illustrate the subject property and the
surrounding land uses within 1,000 feet of the subject property are described below and included in
the Photograph Log in Appendix G of this DEIS.
The 2020 Comprehensive Plan provided a breakdown of land use categories within the hamlets of
Mattituck and Laurel(see Table 27 below)and Figure 4 in Appendix A.As noted in Section 1.1.2 of this
DEIS, the 2020 Comprehensive Plan land use map indicates that the existing land use for the entire
subject property is commercial use; however,the subject property is split-zoned with approximately
16.46±acres located within the M-II zoning district and the remaining 16.5±acres located within the
R-80 zoning district. The 16.5±-acre R-80 zoned portion of the subject property is currently
undeveloped.
146
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 27-Mattituck/Laurel Land Use Description(2020 Comprehensive Plan)
Land Use Acres Percentage(%)
Agriculture 2,983 39.4±
Residential 2,412 31.9±
Recreation&Open Space 850 11.2±
Transportation 529 7.0±
Vacant 446 5.9±
Commercial 133* 1.8±
Utilities 98 1.3±
Institutional 76 1.0±
Industrial 42 0.6±
Total Acres 7,569 100±
*Subject property is classified entirely as"commercial"in the 2020 Comprehensive Plan
Subject Property
The overall subject property is comprised of 32.96±-acres,with 16.46 acres zoned for commercial(M-
II) use, and the remaining 16.5 acres zoned for residential (R-80) use. On the commercial portion of
the subject property,a maritime use (marina and related maintenance/repair)has existed for over 60
years and was formerly known as "Mattituck Inlet Marina and Shipyard", as indicated in the LWRP
(Section II-J Reach 1-5).
The subject property is accessed via the southern terminus of West Mill Road(see Photograph No. 1).
The eastern portion of the subject property at Mattituck Creek is bulkheaded and improved with an
operational marina that includes six(6)support buildings for the operation of the marina,boat/yacht
sales,maintenance,and storage that are accessed via an internal driveway extending a linear distance
of approximately 1,137 feet(0.22±mile)from the northern extend of SYC(see Photograph No.2). The
existing marina is also improved with approximately 45 boat slips, two liftwells with travelifts
(including a 50-ton travelift to the south of the SYC Office building[Building 2] and an 85-ton travelift
to the east of Building 7)and fueling stations and electrical hook-ups for boats (see Photograph Nos.3
through 11).
The southeastern portion of the subject property,east of the existing bulkhead,includes approximately
0.63±acre of NYSDEC-regulated tidal wetlands.Northeast of the wetlands are the docks reserved for
commercial fishing vessels and the CCE FLUPSY units (see Photograph No. 12).
Two single-family residences are located upland of the operational marina,one on the subject property
(Building 1)and one adjacent located at 5106 West Mill Road. These residences are accessed from the
east side of West Mill Road,west of the intersection at Naugles Drive(see Photograph No.13). Building
1 is the marina manager's residence(see Photograph No.14). 5106 West Mill Road is private property
unrelated to SYC's operations (see Photograph No. 15).The majority of the subject property,west of
the operational marina,is currently undeveloped(i.e.,approximately 28 acres)and consists of Coastal
Oak-Beech Forest, Successional Shrubland, and Successional Southern Hardwoods that is used as
private trails by the Applicant,and Unvegetated Sand Slope(see Photograph Nos.16 through 23). It is
147
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
important to note that the existing SYC operations are visible from uses along the eastern shore of
Mattituck Creek(see Photograph Nos.24 and 25).
Surrounding Properties
The surrounding area can be generally characterized as maritime,with residential,agricultural, open
space,and recreational,including the walking trails in the adjacent Town Preserve. Residential uses
are prominent on both the eastern and western banks of Mattituck Creek,with some residences having
private docks (see Figure 4 in Appendix A).A description of the land uses,both within the 1,000-foot
radius of the subject property and outside of the radius,follows:
• North:To the immediate north of the subject property are two buildings-the former Mattituck
Creek Tide Mill (Old Mill Restaurant) located along the waterfront on the east side of West Mill
Road and a single-family residence located on the west side of West Mill Road, formerly the
Frame Water Tower(see Photograph Nos.26 and 27).North of the subject property,within the
1,000-foot radius,is the Mattituck Commercial Dock marina with slips for commercial boats(see
Photograph No. 28). Uses north of the Mattituck Commercial Dock marina, outside of the
1,000-foot radius, are single-family residential (see Photograph No. 29) and the Mattituck
Fishing station with approximately 40 recreational fishing boats. The single-family residence
located at 5102 Mill Road is owned by SYC. Further north, at the mouth of Mattituck Creek, is
the NYSDEC Mattituck Creek Waterway Access Site which provides boat and kayak launches,
boat slips,a fishing pier,picnic tables,and walking trails(see Photograph No.30).46 Additionally,
a State-owned open space area,Oregon Marsh State Tidal Wetlands,is located east of Mattituck
Inlet. This area is accessible to the public with the issuance of a permit for nature studies and
observations.A discussion regarding resources available at Oregon Marsh State Tidal Wetlands
is discussed in Section 3.6 of this DEIS.
• South: To the south of the subject property is the Mill Road Preserve, a 27-acre parcel owned
and maintained by the Town of Southold with a trailhead and parking lot on West Mill Road(see
Photograph No.31).South of the subject property,within the 1,000-foot radius,is a large lattice
transmission tower with transmission lines traveling west to east across Mattituck Creek and
extends above the existing trees in the surrounding area(see Photograph No.32).Single-family
residential uses are adjacent to the south of the subject property and beyond the 1,000-foot
radius (see Photograph Nos.33 through 35).
• East: To the immediate east of the subject property is Mattituck Creek.Across Mattituck Creek
to the northeast, within the 1,000-foot radius, are single-family residential properties, some
with private docks leading to Mattituck Creek (see Photograph No. 36), and a maritime (M-II
zoned) use parcel with commercial fishing dock and loading pier. To the east and southeast of
the subject property are single-family residences well-screened by vegetation along the banks
of Mattituck Creek(see Photograph Nos.37 and 38).
46https:Llw ,dec,nyo outdoor/7780,ht 1,Accessed October 2020
148
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• West: West of the subject property along West Mill Road, within the 1,000-foot radius, are
agricultural land uses and single-family residences with less vegetated buffers (see Photograph
Nos.39 through 40).
Existing Zoning
Subject Property
As described in Section 1.1.1 of this DEIS, the subject property is split-zoned with approximately
16.46±acres located within the M-II zoning district and the remaining 16.5±acres located withing the
R-80 zoning district(see Figure 3 in Appendix A).The SYC operates entirely within the M-II portion of
the subject property.
As set forth in§280,Article XIII,Marine H(M 11)District,of the Town Zoning Code,the permitted uses
of the M-II zoning district include the following:
(1) One one family detached dwelling per single and separate lot of record in existence as of
the date of adoption of this article.
(2) Marinas for the docking,mooring and accommodation of recreational or commercial
boats,including the sale of fuel and oil primarily for the use of boats accommodated in
such marina.
(3) Boat docks,slips,piers or wharves for charter boats carrying passengers on excursions,
pleasure or fishing trips or for vessels engaged in fishery or shell fishery.
(4) Beach clubs,yacht clubs or boat clubs,including uses accessory to them,such as swimming
pools,tennis courts and racquetball facilities.
(5) Boatyards for building,storing,repairing,renting,selling or servicing boats,which may
include the following as an accessory use:office for the sale of marine equipment or
products,dockside facilities for dispensing of fuel and,where pum pout stations are
provided,rest room and laundry facilities to serve overnight patrons.
(6) Mariculture or aquaculture operations or research and development.
(7) Boat and marine engine repair and sales and display,yacht brokers or marine insurance
brokers.
(8) Buildings,structures and uses owned or operated by the Town of Southold,school districts,
park districts and fire districts.
(9) Retail sale or rental of fishing,diving or bathing supplies and equipment if accessory to a
marina or boatyard or ship's loft or chandlery.
Chapter 280 Attachment 4 (Bulk Schedule for Business, Office and Industrial Districts) of the Town
Zoning Code sets forth bulk and dimensional requirements for the M-II Zoning District,as shown in
the table below.
149
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 28-Bulk and Dimensional Requirements of the M-II Zoning District
Dimensional Regulation Requirement
Minimum Lot Size 80,000 SF
Minimum Lot Width 150 feet
Minimum Lot Depth 150 feet
Minimum Front Yard 35 feet
Minimum Side Yard 25 feet
Minimum Both Side Yards 50 feet
Minimum Rear Yard 25 feet
Minimum Landscape Area 20 percent
Maximum Lot Coverage 30 percent
Maximum Building Height M 35 feet
Maximum Number of Stories 2
M Building Height,as defined in§280-4 of the Town Zoning Code,is"The vertical distance measured
from the average elevation of the existing natural grade adjacent to the building,before any alteration
or fill,to the highest point of the roof for flat and mansard roofs and to the mean height between eaves
and ridge for other type roofs."
Article XX.Landscaping,Screening and Buffer Regulations
Article XX of the Town Zoning Code sets forth standards for landscaping,screening and buffers. Section
3.1.2 of this DEIS sets forth said standards and consistency of the proposed action therewith.
Surrounding Properties
Review of the Town of Southold zoning map indicates the zoning is generally consistent with the land
uses within 1,000 feet of the subject property(see Figures 3 and 4 in Appendix A).The zoning within
1,000 feet of the subject property includes R-80 and M-II zoned properties to the north, R-80 to the
south,R-80 and M-II to the east and Residential Low-Density(one-acre minimum) (R-40)and R-80 to
the west. Review of the Town of Southold Tax Map Inquiry indicates that the two parcels to the north
of the subject property,zoned M-II similar to the subject property,have a Town land use designation
of industrial. However, the Town land use map indicates the subject property has a Town land use
designation of commercial although the parcels to the north and the subject property are used in a
similar manner (i.e., marinas with commercial and recreational docking). Additionally, the northern
most parcel to the east of the subject property,zoned M-II similar to the subject property,has a Town
land use designation of industrial and is also used in a similar manner as SYC (i.e.,commercial fishing
dock and loading pier operated by the King Family). The other parcels zoned M-II south of the King
Family commercial fishing dock and pier are residentially developed and have a Town land use
designation of medium density residential. The properties zoned R-80 to the west of the subject
property are agricultural uses.
The Town's LWRP indicates the sloping wooden terrain around Mattituck Creek, specifically near
Mattituck Inlet provides ideal sites for residential development. Based on the prevailing zoning, the
residential development is of low and medium density.
150
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Relevant Planning Documents
Southold Town Comprehensive Plan Update(Adopted September 2020)
The 2020 Comprehensive Plan was adopted in the fall of 2020 and replaces the previous plan that was
originally adopted by the Town in the late 1970's and updated in 1989.The 2020 Comprehensive Plan
was prepared to "shape future updates to the Town Code and policy decisions regarding the
appropriate use of the Town's resources" and "to guide future management of the Town's expected
growth and for encouraging economic activity suitable to the Town's character" (page i). Its Vision
Statement,as created through the public participation process,is as follows:"future planning shall be
compatible with existing community character while supporting and addressing the challenges of
continued land preservation, maintain a vibrant local economy, creating efficient transportation,
promoting a diverse housing stock, expanded recreational opportunities and protecting natural
resources" (page 1).
The 2020 Comprehensive Plan is comprised of 13 chapters that address various Town resources,both
natural and manmade,that influence policy decisions about land use and zoning within the Town.The
2020 Comprehensive Plan provides both Town-wide and specific hamlet planning goals and objectives
within each chapter to achieve the vision of this plan. Below are the relevant Town-wide and hamlet
goals and objectives from the 2020 Comprehensive Plan as they relate to the proposed action. The
proposed action's consistency with the relevant sections of the 2020 Comprehensive Plan Update is
included in Section 3.1.2 of this DEIS.
Land Use and Zoning
Pursuant to the Mattituck/Laurel Land Use Map (see Figure 4 in Appendix A),the subject property is
mapped entirely for commercial use. However, as noted above in this section and in Section 1.1.2 of
this DEIS,the subject property is split-zoned with approximately 16.46±acres located within the M-II
zoning district and the remaining 16.5±acres located within the R-80 zoning district.The 16.5±-acre
R-80 zoned portion of the subject property is currently undeveloped.The 2020 Comprehensive Plan
provides theoretical buildout scenario estimates for different land uses by hamlet.The commercial and
industrial buildout scenario calculates the potential SF of commercial and/or industrial development
as compared to existing development within each hamlet. As depicted on Figure 3.4 - Existing and
Potential Future Commercial/Industrial Development by Hamlet (page 3 in Chapter 3),
Mattituck/Laurel has the third highest amount of development potential with the Town.Based on the
data provided in Figure 3.4,there is currently 800,000 SF of commercial and industrial development
within the hamlets of Mattituck and Laurel, and the buildout scenario indicates a potential for
1,700,000 SF more commercial and industrial development in Mattituck/Laurel(from 800,000 SF for
existing to 2,500,000 SF for future buildout).Relevant to the subject property is its existing commercial
use as an operational marina within the hamlet of Mattituck with the potential to expand its
commercial services on-site.
Chapter 3 sets the foundation for the subsequent chapters in the 2020 Comprehensive Plan by
providing an overview of current land use and zoning and presents broad goals for future land use and
zoning to achieve the vision in this plan. The broad goals for land use and zoning each relate to the
subsequent chapters where more in-depth goals and objectives are identified.The remaining chapters
151
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
of the 2020 Comprehensive Plan narrow the focus to the specific land use topics:transportation and
infrastructure, community character, water and land resources, economic development, housing,
agriculture, land preservation, human services, natural hazards, and parks and recreation. Further,
Chapter 3 of the 2020 Comprehensive Plan identifies goals/issues for the Mattituck/Laurel area in
which the subject property is located. The Town-wide and broad and general goals for land use and
zoning as well as the goals/issues for the Mattituck/Laurel area are summarized below.
• Goal 5:Protect the Town Character
• Goal 6:Protect and Enhance the Town's Natural Resources and Environment
o Protect groundwater and surface water quality and quantity.
o Protect land-based natural resources including agricultural soils and natural habitat
for wildlife.
• Goal 7.- Economic Prosperity (Facilitate the growth of existing businesses and encourage new
business for stable and sustainable employment)
0 This includes agriculture, aquaculture, health care, renewable energy, tourism, light
industrial, retail/service-based and maritime-related industry. Balance economic
prosperity with maintaining a high quality of life, the environment, and the unique
character of the communities.
Transportation and Infrastructure
Chapter 4 (Transportation and Infrastructure) of the 2020 Comprehensive Plan addresses goals to
address traffic congestion, to improve traffic, pedestrian, and bicycle safety, and the integrity of
utilities to serve future development within the Town. Also,the 2020 Comprehensive Plan notes the
intention of the Town to re-evaluate zoning districts relative to the traffic generated by uses within the
districts and the need for additional infrastructure to support future development(pages 18 and 31 in
Chapter4). There are no relevant goals and objectives for traffic as it relates to the subject property.
The relevant goals and objectives for infrastructure are summarized below:
• Goal 1:Reduce stormwater runoff
The Town recognizes that as development increases,impermeable surfaces would likely increase
and there would also be a resultant increase in stormwater runoff generation. In addition to
traditional stormwater infrastructure, green infrastructure technologies, such as constructed
swales and vegetated retention areas,are recommended to be integrated into stormwater design.
• Goal 2:Evaluate alternatives to public sewers
The 2020 Comprehensive Plan notes that extending public sewer may not be feasible due to
construction and maintenance restraints as well as growth inducing concerns.As such,evaluating
alternative methods to treating sanitary waste (e.g., on-site or small community systems) is an
important infrastructure goal for the Town.
152
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Community Character
Chapter 5 (Community Character) of the 2020 Comprehensive Plan indicates that, "the Town's
character is anchored in the scenic quality of its bucolic-built environment and its landscapes and
waterscapes."(page 1 in Chapter 5). Of noted importance to the community is maintaining the quality
of life when facing future development within the Town.
The relevant goals and objectives are as follows:
• Goal2:Protect Cultural Resources
o Objective 2.4-Protect and enhance resources that are significant to the culture of Southold
Town.
■ (B)-Protect the character of historic agricultural and maritime areas by maintaining
appropriate scales of development,intensity of use,and architectural style.
■ (C) -Preserve and encourage traditional uses defining the agricultural and maritime
character of the area.
• Goal 3:Preserve Quality of Life in Residential Neighborhoods
o Objective 3.2-Reduce impacts from traffic.
o Objective 3.3-Reduce impacts from noise and light pollution
o Objective 3.4-Preserve community character of residential neighborhood.
• Goal 4:Protect Natural Heritage
o Objective 4.1 -Elevate and preserve the Town's natural heritage through preservation of
the working landscapes and waterscapes and the people who interact with them.
• (B)-Provide for and support the commercial and recreational use of Southold Town's
marine ecosystems.
o Objective 4.2-Protect and restore ecological quality throughout Southold Town
■ (B)-Promote sustainable use of living marine resources in Long Island Sound,the
Peconic Estuary,and Town waters.
■ (C)-Avoid adverse changes to the Long Island Sound and Peconic Bay ecosystems that
would resultfrom impairment of ecological quality.
• Goal#5:Protect the Unique Character of Individual Hamlets
As indicated on page 13 of Chapter 5 in the 2020 Comprehensive Plan,the Town utilized individual
hamlet plans from 2005 to 2010 that developed from a community-led initiative to generate
short-term and long-term recommendations for each hamlet. In 2008, the Hamlet Study
Implementation Panel(HIP)was formed to implement the recommendations of the stakeholders.
By 2009, many of the short-term recommendations of the hamlet plans were implemented and
completed. The 2020 Comprehensive Plan integrates those long-term recommendations from the
hamlet plans.
The recommendations for the hamlets of Mattituck and Laurel addressed topics such as
revitalizing Mattituck Inlet into a maritime hub, creating a village park for community events,
targeting parking behind the retail and service areas, supporting the closure of Love Lane for
community events and continuing the operation of the post office. Of the specific
153
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
recommendations, only one recommendation is relevant to the subject property as a commercial
maritime use and is identified below.
(A) -Revitalize Mattituck Inlet into a recreational and commercial maritime hub
(2) Update and implement the Harbor Management Plan.
Natural Resources and Environment
Chapter 6 (Natural Resources and Environment) of the 2020 Comprehensive Plan addresses the
existing natural resources and environmental features in the Town. The Town's locational setting with
the Long Island Sound to the north and Peconic Estuary to the south is noted ecologically important.
The natural resources and environment goals and objectives are separated into two categories-water
resources and land resources.
The relevant goals and objectives for water resources,are as follows:
• Goal 1:Conserve water quantity
• Goal 2:Protect groundwater quality
• Goal 3:Protect surface water quality
o Objective 3.1 -Continue to implement thegoals and objectives of the LWRP,Peconic
Estuary Program(PEP),CCMP,and LISS to address target issues on surface water quality.
o Objective 3.4-Minimize illicit discharges into surface waters.
o Objective 3.5-Avoid and minimize non-point pollution of coastal waters.
• Goal 4:Improve watershed management
o Objective 4.4-Limit the potential for adverse cumulative impacts of watershed
development on water quality and water quantity.
• Goal 5:Protect freshwater and marine habitats
o Objective 5.1 -Identify,protect and enhance quality of coastal habitats.
o Objective 5.2-Protect tidal and freshwater habitats
■ (A)-Continue to achieve a "no net loss"policy of tidal and freshwater wetlands.
The relevant goals and objectives for land resources,are as follows:
• Goal 1:Protect soils and geologic features
o Objective 1.4-Preserve the unique geologic features of the Town through avoidance
and/or minimization of impacts from development and natural disasters.
• Goal 2:Protect upland habitats and trees
o Objective 2.1 -Preserve and manage the Town's grasslands,old field,and woodlands
habitats to achieve the highest ecological quality and species diversity.
o Objective 2.2-Protect and restore upland habitat ecological quality by adhering to the
following measures:
■ (A)-Retain and add indigenous plants to maintain and restore values of upland
ecological communities.
■ (B)-Protect existing indigenous plants form loss or disturbance to the extent
practical.
■ (C)-Avoid permanent adverse change to ecological processes that provide values to
the residents of the Town and the region.
■ (D)-Reduce adverse impacts on upland habitats due to development.
154
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
■ (E)-Mitigate impacts of new development where avoidance of impacts is not
practicable.
• Goal 3:Protect fish and wildlife resources
o Objective 3.3-Protect and restore Significant Coastal Fish and Wildlife Habitats.
• Goal 7.Adapt to the effects of climate change and rising sea levels
• Goal 9:Continue to manage solid waste and hazardous waste.
o Objective 9.7-Ensure maximum public safety through continued management of
household and industrial hazardous waste collection,storage,and disposal.
• Goal 10:Reduce light pollution
Economic Development
Chapter 7 (Economic Development) of the 2020 Comprehensive Plan addresses economic
development within the Town. As noted in this Chapter,all goals and objectives were formulated using
extensive community input that considered the Town's history,past economic development initiatives,
changes in demographics and socio-economic status of residents,and businesses within the Town.
As indicated on page 1 of Chapter 7, "Industrial and commercial zoning districts provide for important
land uses that serve many needs within the community and the region. They are seen as beneficial because
they are essential to a strong tax base for the Town. Commercial/industrial lands result in: higher tax
base,which helps support school budgets(approximately 60 percent of the total tax levy is school district
taxes); employment creation within the community, provision of consumer and service business needs
within the community."
As discussed above in this section of the DEIS and explained in Chapter 3 (Land Use and Zoning)of the
2020 Comprehensive Plan, Mattituck/Laurel has the third highest amount of development potential
with the Town based on SF or building area. At the time of the 2020 Comprehensive Plan's
development and adoption, a tax base analysis was conducted which indicated that the "Town's tax
base appeared to be sound,with a healthy balance of residential and non-residential uses.Southold Town
has established an optimal mix of businesses,and industrially zoned businesses. The analysis found that
it was not likely that the existing zoning mix would have major implications for the tax base" (page 2 of
Chapter 7).
The relevant goals and objectives,for economic development,are as follows:
• Goal 1:Encourage new and facilitate the growth of existing business sectors that pursue stable
and suitable employment.
The 2020 Comprehensive Plan identifies targeted business sectors including agriculture,aquaculture,
health care,renewable energy,tourism,light industrial,retail/service-based and the maritime-related
industry.
• Goal 2: Promote economic development that ensures an adequate tax base without
compromising the unique character of the Town.
o Objective 2.4 - Expand and improve infrastructure as appropriate, to serve existing
businesses and accommodate new growth.
155
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
■ (A)-As commercial/industrial development occurs in conformance with Town zoning,
maintain and provide infrastructure in a manner that supports the planned non-
residential growth of the Town.
• Goal 4: Preserve and encourage industries that support existing and future agriculture and
aquaculture uses
o Objective 4.7-Continue to pursue relationships through Cornell Cooperative Extension and
other key players to promote the Town's aquaculture industry,and the Southold Project in
Aquaculture Training(SPAT).
• Goal 5: Preserve, encourage, and continue to support existing and future maritime uses as an
important business sector within the Town's economy.
o Objective 5.1 -Maintain consistency with the policies adopted under the Local Waterfront
Revitalization Program.
o Objective 5.4-Consider amendments to thezoning oflargermarinas to better accommodate
and position them as a viable use in the Town's economy.
o Objective 5.7-Enhance the connection between Mattituck Inlet and the hamlet center.
■ (B)-Increase access through regular dredging of Mattituck Inlet.
Natural Hazards
Chapter 12 (Natural Hazards) of the 2020 Comprehensive Plan acknowledges the threats of natural
hazards to the Town and the increase in occurrence of natural hazards,including:
• Flooding(coastal,riverine,flash,urban)
• Nor'easters (extra tropical cyclones,including severe winter low-pressure systems)
• Coastal erosion
• Severe storms (windstorms,thunderstorms,hail,tornadoes)
• Hurricanes (tropical cyclones,tropical storms,tropical depressions)
• Sea level rise
• Drought
• Extreme temperature (heat wave or cold temperatures)
• Wildfire
As the subject property is located within the Town of Southold, there is a potential threat of the
aforementioned natural hazards.Furthermore,as the subject property is located near the coast along
Mattituck Creek, the subject property is potentially susceptible to flooding and sea level rise. As
described in Section 2.3.1 of this DEIS,a majority of the eastern portion of subject property currently
developed with the commercial marina is situated within the SFHA Zone AE, which is the 100-year
flood zone.The northeast portion of the subject property that is developed with Building 3 is situated
within Zone X,which includes 500-year flood zone areas.The 2020 Comprehensive Plan indicates that
the rate of sea level rise within the next 20 years is predicted to increase as a result of warming oceans
and would contribute to worsening coastal flooding and related hazards such as erosion (page 1 of
Chapter 12).
156
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 12 provides three goals for addressing natural hazards which includes mitigating the effects
of natural hazards, completing a post disaster recovery and reconstruction plan and providing
education to the public about natural hazards. Only one of the three town-wide goals for addressing
natural hazards is relevant to the subject property,as identified below.
• Goal 1:Mitigate the effects of natural hazards to achieve coastal resiliency,protect public safety,
and reduce economic loss.
This goal recognizes the need to mitigate natural hazards to ensure those hazards will not cause injury
or death to people, and to reduce economic loss to structures and property. This goal also
acknowledges that coastal resiliency is the ability of a place to withstand coastal hazards(e.g.,flooding
and sea level rise)while minimizing threats to human life and property.
The proposed action's consistency with each of the goals and objectives set forth above from the 2020
Comprehensive Plan are evaluated in Section 3.1.2 of this DEIS.
Town of Southold Local Waterfront Revitalization Program
The Town of Southold LWRP was originally adopted on November 30, 2004 and approved by the
NYSDOS on June 21, 2005 with concurrence from the United State Office of Ocean and Coastal
Resources Management on November 2, 2005.The Town amended the LWRP on June 23, 2011 and
approved by the NYSDOS on February 25, 2014 with concurrence from the United States Office of
Ocean and Coastal Resources Management on July 24,2014.
The LWRP supplements the State's Coastal Management Plan by highlighting the waterfront issues
that are critical to the local community and setting forth policies that future coastal development must
abide by. The Town's LWRP used other local planning frameworks, including but not limited to the
Town's previous Comprehensive Plans, LISS, and Long Island Sound Regional Coastal Management
Program(LISRCMP)to guide the development of the LWRP polices.
As indicated in the LWRP, the Town of Southold contains 160 miles of shoreline. To inventory the
coastal areas of the Town,the LWRP divides the Town into 10 reaches. The subject property is within
Reach 1 which "...stretches east along the Long Island Sound shoreline from the boundary between the
Town of Riverhead and Southold to Duck Pond Point,Cutchogue.Its inland boundary is Old Sound Avenue
and County Route 48. The Reach includes the communities of Mattituck Hills and Oregon Hills,as well as
the northern reaches of Mattituck hamlet." (see Figure 25 in Appendix A).
The LWRP follows the LISRCMP policies which outlines 13 waterfront revitalization policies to address
the Town of Southold's resources.These policies are based on the 44 coastal policies set forth in 19
NYCRR§600.5 and the New York State Coastal Management Plan and cater to the unique needs.The
categories include Developed Coast policies,Natural Coast policies,Public Coast policies,and Working
Coast policies. Each policy category contains a specific goal for each Coast, and these goals are
identified within the Planning Framework section of the LWRP. In summary, as excerpted from the
LWRP:
157
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• The Developed Coast - Enhance community character by improving the quality of existing
development,promoting a sense of connection to the Sound, and focusing growth and investment
to preserve the positive relationship between the built and natural landscapes and between
existing and new development.
• The Natural Coast-Reclaim the value and achieve sustainable use of the Sound's natural resources
by improving the quality and function of ecological systems,respecting the dynamics ofshoreline
change,and providing high quality coastal waters.
• The Public Coast-Connect people to the Sound and its public resources by improving visual
and physical access and by providing a diversity of recreational opportunities.
• The Working Coast- Reinvigorate the Sound's working waterfront, its jobs and products, at
appropriate locations by protecting uses dependent on the Sound furnishing necessary
infrastructure, providing business and marketing assistance, and promoting efficient harbor
operations.
The 13 policies implement the NYSDOS 44 coastal policies and represent a local refinement of the
LISRCMP Policies. Said policies and consistency therewith are included in Section 3.1.2 of this DEIS.
Town of Southold Town Code Chapter 275-Wetlands and Shoreline
As presented in Section 2.2.1 of this DEIS, the Board of Trustees of the Town of Southold regulates
wetlands and the shoreline.Within Chapter 275 of the Town Code,wetlands of the Town of Southold
are identified as"any freshwater wetland,tidal wetland,beach,bank,bluff, dune,flat,marsh,swamp,
wet meadow, bog, or vernal pool, any creek, estuary, stream, pond, canal, or lake, land underwater,
land subject to tidal action,land within 100 feet of the areas listed above,and all Town waters."
The proposed action includes regulated activities within 100 feet of a Town wetland and is,therefore,
subject to a Town of Southold Board of Trustees Wetlands Permit.An analysis of the Town regulations
under Chapter 275 are included in Section 2.2.2 of this DEIS and also summarized in Section 3.1.2,as
required by the Amended Final Scope.
Mattituck Watershed Management Plan
The Mattituck Watershed Management Plan is part of a larger study entitled "Plan for Decentralized
Wastewater Treatment in the Long Island Sound Watershed, North Fork, NY" prepared by Peconic
Green Growth,Inc.in March 201447(hereinafter the"Long Island Sound,North Fork Study").The Long
Island Sound, North Fork Study identifies the need to protect local water resources including
groundwater and surface waters.The study notes that clean surface water and groundwater resources
are critical for the Towns of Riverhead and Southold as they depend upon the maritime,agricultural
and tourism industries(page 1-1).
As indicated on page 1-1 of the study, excess nitrogen is a primary factor contributing to water
impairment in local marine waters,primarily as a result of conventional sanitary systems. Within the
study area of the Long Island Watershed in the Towns of Riverhead and Southold, 97 percent of the
47httpo/ neconicgreen rowth.or lwastewaterlh sound of studtif
158
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
parcels are not served by municipal sewers and 72 percent are developed with OWTS.The Long Island
Sound,North Fork Study states that
"the existing cesspools and septic systems are primary sources of excess nitrogen,which impact
water quality for both groundwater and surface water bodies in the Long Island Sound
Watershed on the North Fork. The excess nitrogen feeds increasingly toxic algal blooms, which
in turn negatively impact shellfish and fish by reducing available dissolved oxygen, as well as
contributing to the acidification of water bodies" (page 1-1).
The Long Island Sound, North Fork Study includes three pilot engineering assessments for proposed
decentralized community-wastewater treatment systems,including one for West Mattituck.The West
Mattituck engineering report provides estimates for a larger OWTS designed to handle the equivalent
of 416 residences adjacent to Mattituck Creek on its western banks.As shown on Figure 26 in Appendix
A,the subject property is located outside of the boundaries of the proposed sewer service area.While
the engineering assessment only focuses on residential uses,the subject property is situated adjacent
to Mattituck Creek and also currently utilizes a septic OWTS.As stated above, on-site septic systems
are a primary source of excess nitrogen impacting surface water and groundwater quality. Refer to
Section 3.1.2 of this DEIS for the proposed action's consistencywith the Long Island Sound,North Fork
Study.
NYSDOS Significant Coastal Fish and Wildlife Habitat
As discussed in Section 2.2.1 of this DEIS,the subject property is adjacent to Mattituck Inlet Wetland
and Beaches, which is identified as a Significant Coastal Fish and Wildlife Habitat (see Figure 21 in
Appendix A).This area provides significant nesting habitat and is productive for recreational fishing.
Additionally, as presented in Sections 1.1 and 2.2.1 of this DEIS, the USACOE maintains a dredging
program for Mattituck Inlet,identified as a,"Harbor of Refuge,to ensure the water body remains safe
for navigation which further enhances the water quality and natural ecosystem of Mattituck Inlet."A
consistency analysis completed in Section 2.2.2 of this DEIS is summarized below in Section 3.1.2,as
required by the Amended Final Scope.
Suffolk County Sanitary Code
Article 6 of the SCSC - Single-Family Residences, Realty Subdivisions, Developments and Other
Construction Projects
As discussed in Section 2.2.1,the intent of Article 6 is to protect groundwater resources by setting forth
population density equivalents for sanitary discharge.As the proposed action is within Groundwater
Management Zone IV (see Figure 15 in Appendix A), the maximum permitted sanitary discharge to
individual sewerage systems is 600 gpd/acre or 9,498 gpd for the gross land area of 15.83±-acres. As
indicated on the Utility Plan (see Appendix C), under existing conditions, the subject property
generates approximately 1,058 gpd of sanitary waste,which is below the maximum allowable sanitary
flow.As described in Section 2.2.1 of this DEIS,adopted Resolution No. 702-2020 requires I/A OWTS
for new or expanded single-family residences and new other construction projects effective on July 1,
2021. The amendments to Article 6 of the SCSC also expanded the list of I/A OWTS technologies
159
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
allowed, modified the horizontal separation distance requirements for I/A OWTS and modified the
design capacity for modified subsurface sewage disposal systems from 15,000 gpd to 30,000 gpd.
A consistency analysis completed in Section 2.2.2 of this DEIS is summarized below in Section 3.1.2 of
this DEIS.
Article 7 of the SCSC-Water Pollution Control
As discussed in Section 2.2.1 of this DEIS,the intent of Article 7 is to ensure that within deep recharge
zones,water resources within Suffolk County are protected from discharges from sewage, industrial
and other wastes,toxic or hazardous materials and stormwater runoff.Additionally,Article 7 protects
water supply sensitive areas that are within 1,500 feet upgradient or 500 feet downgradient of public
supply wells screened in the Upper Glacial aquifer.As evaluated in Section 2.2.1 of this DEIS,based on
the Article 7 Map (see Figure 16 in Appendix A), the subject property is outside of a regulated deep
recharge area.Furthermore,the subject property is not within an area that is 1,500 feet upgradient or
500 feet downgradient of a public supply well that screens in Upper Glacial aquifer, or other water
supply sensitive area.
Article 12 of the SCSC-Toxic and Hazardous Materials Storage and Handling Controls
As discussed in Section 2.2.1 of this DEIS, Article 12 regulates the storage and handling of toxic and
hazardous materials for the protection of groundwater quality. As indicated in Section 2.2.2 of this
DEIS,there are four operational ASTs on the subject property and SYC maintains an Article 12 permit
for all tanks. Additionally,SYC stores several materials regulated under Article 12. Table 13 in Section
2.2.1 of this DEIS provides a summary of the existing chemicals stored at SYC.A consistency analysis
completed in Section 2.2.2 of this DEIS is summarized below in Section 3.1.2 of this DEIS,as required
by the Amended Final Scope.
3.1.2 Potential Impacts
Land Use
Upon implementation of the proposed action,the M-II zoned portion of the site utilized by SYC would
be modified from seven to nine buildings, increasing the total GFA from 68,817 SF to 170,317 SF
(represents a 40 percent expansion). The two additional buildings (identified as Buildings 9 and 10
on the proposed site development plans in Appendix C) would be situated perpendicular to the west
of Buildings 7 and 8,which are situated parallel to Mattituck Creek.The proposed two buildings would
require modification of the upland portion of the site to accommodate the construction at similar
elevation to the current SYC facility. Specifically,approximately 6.51 acres of land would be disturbed
and excavated requiring approximately 135,000 CY of material that would need to be removed from
the subject site.
The proposed Building 9 would be located west of Building 8 and would be approximately 49,000 SF.
The proposed Building 10 would be located northwest of Building 8 and would be approximately
52,500 SF. All yachts would arrive to and leave SYC via Mattituck Creek,relying upon the existing 85-
ton travelift to lift the boats from the water and transport them to and from the storage buildings.
160
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Upon arrival to SYC, only SYC employees would have access to the vessels inside the building for any
requested or required maintenance or repairs.
Both of the proposed buildings would be constructed with radiant floor heating, relying upon LPG
tanks for the purpose of climate-controlled storage. In total, there would be four (4) LPG tanks for
each building with a total capacity of 8,000 gallons. The LPG tanks would be above ground and
contained in a concrete vault adjacent to each building.
In addition to the proposed storage buildings, the proposed action includes the replacement of an
existing individual on-site sanitary system with an I/A OWTS, and installation of one additional I/A
OWTS. The existing sanitary system that serves Building 1 would remain. The proposed action also
includes an extension of the public water main from Naugles Drive for on-site connection,installation
of a new hydrant at the site entrance on West Mill Road,conversion of two existing on-site wells near
Buildings 1 and 7 for irrigation supply only and abandonment of two on-site wells near Buildings 2
and 3.The extension of the public water main would also allow for existing landowners to connect to
the public supply system,by request to the SCWA.
As indicated on the Grading & Drainage Plan (see Appendix C), the proposed action includes the
installation of on-site leaching pools and French drains which includes the use of pervious gravel as
stormwater management methods to accommodate and recharge stormwater runoff. Four (4)
tributary areas are proposed to be constructed within the area of disturbance to capture stormwater
runoff from the proposed buildings and the western side of Building 7 and all of Building 8. Tributary
Areas 3 and 4 have also been designed to handle a portion of off-site stormwater due to existing natural
grades. The proposed stormwater management plan is designed to accommodate a two-inch rain
event,in accordance with Town of Southold regulations(Chapter 236 Stormwater Management).
Proposed Parking
As indicated on the Utility Plan in Appendix C, based on the current and post-development storage
area,the Town of Southold parking ordinance (§280-78.A) requires 262 surface parking stalls,as set
forth below.
PARKIN6 CALCULATION
nk�4 .
PARKIN&REQUIRED
51N&LE FAMILY DETACHED RESIDENCE = 2 STALLS
OFFICE = 2,102 5F @ 15TALL/100 5F = 21 5TALL5
MARINA = 40 BOAT SLIPS(§ I STALL/BOAT SLIP = 40 STALLS
5TORA&E = I67,445 5F® I 5TALL/1,000 5F = 165 5TALL5
25 EMPLOYEES g 15TALL/EMPLOYEE = 25 STALLS
TOTAL REQUIRED = 262 STALLS
PARKIN&PROVIDED
TOTAL PROVIDED = 5T STALLS
HANDICAPPED PARKIN&PROVIDED = 4 STALLS
There are currently 23 stalls provided on-site,with the proposed action including the creation of 34
new parking stalls on-site by striping gravel-surfaced areas that are currently used for parking but are
not formally marked. As indicated on the Alignment Plan in Appendix C, 11 stalls would be located
161
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
along the east side of Building 7,four (4) stalls would be located on the south side of Building 8, and
19 stalls would be located to the east of Building 8. Upon implementation of the proposed action,the
available parking would be increased from 23 stalls to 57 stalls. It is noted that the new buildings are
for boat storage only and would not generate significant vehicular traffic by boat owners or the
additional 11 employees expected post-development.
The overall site access to SYC would remain the same as existing conditions from West Mill Road. A
stone blend pavement access route to Buildings 9 and 10 would be provided between Buildings 7 and
8 from the internal road of the existing marina. The area surrounding the two storage buildings would
be screened by the proposed retaining wall and the existing forested areas that would be retained on
the subject property.
Proposed Landscape Plan
The proposed action also includes the planting of new landscaped areas along the southern property
line to supplement the existing woodland area,as well as screening vegetation to the north and west
adjacent to the proposed Evergreen concrete retaining wall, and plantings within the wall itself.
Regarding the proposed site landscaping on the southern property line,as indicated on the Proposed
Landscape Plan prepared by the project architect(see Appendix C),these plantings would include Pitch
Pine (Pinus Rigida) trees and one species of shrub (i.e., Low Bush Blueberry [Vaccinium
angustifolium]).
The proposed plantings adjacent to and incorporated into the retaining wall have been designed by
Jeffrey T. Butler, P.E., P.C. and are included on the Proposed Landscape Plan (see Appendix C). As
indicated on said plan,the proposed landscaping schedule includes four segments:upland(beyond top
of the retaining wall), retaining wall north, retaining wall west, and surrounding site at or above
building elevation.
The upland area is between the six-foot chain-link fence atop the Evergreen concrete retaining wall
and extends to the edge of the area of disturbance. Vegetation proposed in the upland area would
include plantings of Pitch Pine (Pinus rigida) at least four-to-five feet tall to screen the proposed
buildings from surrounding views to the south, Lowbush Blueberry (Vaccinium angustifolium), and
Switchgrass (Panicum virgatum).
The northern and western portions of the retaining wall would include Bayberry(Myrica pensylvanica)
and two varieties of small trees including Shadbush(Amelanchier canadensis),and Staghorn Shadbush
(Rhus typhina), and the following varieties of groundcover: Virginia Creeper (Parthenocissus
quinquefolia),Switchgrass (Panicum virgatum),Common Milkweed(Asciepiassyriaca),and Groundsel
Bush (Baccharis halimfolia). The northern landscaped shelf of the Evergreen concrete retaining wall
would be approximately 157 feet long in linear distance and the western landscaped shelf of the wall
would be approximately 80 feet long in linear distance.
Three sections of the Evergreen concrete retaining wall would be filled with topsoil to allow for
seeding by wildlife.A 144±-foot long in linear distance and 124±-foot long in linear distance topsoil-
filled section of the Evergreen concrete retaining wall would be located north and south of the western
landscape schedule, respectively. A 370±-foot long in linear distance topsoil-filled section of the
Evergreen concrete retaining wall would be located west of the northern landscape schedule.
162
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The proposed plantings in the adjacent area at or above building elevation would include Pitch Pine
(Pines rigida) at least four-to-five feet tall, and one variation of shrub including Lowbush blueberry
(Vaccinium angustifolium).This landscaping schedule is proposed south,east,and west of the concrete
retaining wall for the two liquid propane tanks that would be located south of Building 9. Overall,the
proposed plantings are intended to soften the view of the modified slope from the east.
Proposed Site Lighting
The proposed site lighting would consist of light poles and building fixtures. Specifically,as indicated
on the Details sheet(see Appendix C),the proposed action includes three 14-foot lamp poles with LED
fixtures(two at the above ground tanks between Buildings 7 and 10 and one south of Building 8 at the
retaining wall); 38 wall scones at 14-feet above grade around the eastern and southern sides of
Building 10 and the northern,eastern,and southern sides of Building 9,and western sides of Buildings
7 and 8;and 13 wall lights along the northern and western sides of Building 10 and along the western
side of Building 9.Each lamp pole would include a shielded fixture such that all light would be directed
downwards with no upward glare. To mitigate light trespass and glare,all lighting would be shielded
and directed downwards at an intensity compliant with Chapter 172 of the Town Code (Outdoor
Lighting). The proposed lighting would comply with the lighting standards set forth in §172-5 and
would be subject to the review and approval of the Town of Southold Building Department.
Upon implementation of the proposed action, the current marine use would remain unchanged. As
presented in the Town's LWRP and evaluated further in this section of the DEIS, Mattituck Harbor
(Mattituck Inlet and Mattituck Creek)is the only harbor fronting the Long Island Sound in the Town of
Southold and was identified as one of 10 maritime centers on Long Island in the Long Island Sound
Coastal Management Program. Maritime uses at the subject property has persisted for over 60 years
and would continue to be as such upon implementation of the proposed action. Moreover,from a land
use perspective,the proposed action is consistent with the underlying intent of the prevailing zoning
for the M-II zoning district(see Zoning discussion in this section of the DEIS below). Accordingly,based
on the above,no significant adverse land use impacts would result from the proposed action.
Zoning
The proposed action would occur primarily within the M-II zoning district of the Town of Southold,
with only a portion of the proposed project(the haul road) affecting the R-80 zoned portion. As set
forth in Tables 2 and 3 in Section 1.2.1 of this DEIS,the Project Area is 6.51 acres with 5.84 acres located
within the M-II portion of the site and 0.67 acre located in the R-80 portion of the site. Only the
proposed haul road would be located on the R-80 portion of the site and would remain post
development to serve as an emergency access route to the subject property from Mill Road.
The proposed development is intended to support the current SYC operation and would be entirely
located on the M-II portion of the site. As excerpted from Section 280-54 of the Zoning Code,the intent
of the M-II zoning district is "...to provide a waterfront location for a wide range of water-dependent and
water-related uses, which are those uses which require or benefit from direct access to or location in
marine or tidal waters and which,in general,are located on major waterways,open bayfronts or the Long
Island Sound." The proposed action is consistent with this intent in that it seeks to provide storage
163
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
facilities for yachts that are of a size that require transport via water(as opposed to smaller boats that
can be trailered).
Among the nine permitted uses in the M-II zoning district,the proposed action is consistent with§280,
Article XIII A(5),"Boatyardsforbuilding,storing,repairing,renting,selling or servicing boats,which may
include the following as an accessory use:office for the sale of marine equipment or products, dockside
facilitiesfor dispensing offuel and,where pumpoutstations are provided,rest room and laundryfacilities
to serve overnight patrons."
A consistency analysis with the bulk and dimensional requirements for development within the M-II
zoning district is included in the Bulk Zoning Table on the General Layout Plan (see Appendix C) and
demonstrated below.
Table 29-Consistency Analysis with Bulk&Dimensional Regulations for M-II Zoning District
Requirement Proposed
Minimum Lot Size 80,000 SF 717,085 SF
Minimum Lot Width 150 feet 740±feet
Minimum Lot Depth 150 feet 1,600±feet
Minimum Front Yard 35 feet 26.5 feet(existing structure)
Minimum Side Yard 25 feet 28.0 feet
Minimum Both Side Yards 50 feet 77.7 feet
Minimum Rear Yard 25 feet 91.3 feet
Minimum Landscape Area 20 percent 51.4 percent
Maximum Lot Coverage 30 percent 24.7 percent
Maximum Building Height 35 feet <35 feet
Maximum Number of Stories 2 1
As indicated in the table above, the proposed development complies with the bulk and dimensional
requirements for the M-II zoning district. There is an existing structure on the SYC property(outside
of the Project Area) that is set back 26.5 feet from the front yard boundary and does not, therefore,
comply the zoning requirement. However,this is an existing condition that dates back to the 60-year
maritime use of the property and is not a nonconformity created by the proposed action.
Building Height
As indicated in Table 29,the proposed buildings are indicated as less than 35 feet. Building Height,as
defined in §280-4 of the Southold Zoning Code, is the "vertical distance measured from the average
elevation of the existing natural grade adjacent to the building, before any alteration or fill, to the
highest point of the roof for flat and mansard roofs and to the mean height between eaves and ridge
for other type roofs." As indicated in the Elevation drawings in Appendix D of this DEIS,the proposed
buildings are 39-feet-3-inches from grade to the eave and 45-feet-8-inches from grade to the top of
ridge. The mean roof height is 42-feet-6-inches. With a proposed 10-foot FFE for both buildings,the
top(mean height between eave and ridge)elevation of the buildings would be 55.67±feet ASML. The
average elevation of the existing natural grade for the two proposed buildings are as follows:Building
10 - 39.83±feet AMSL and Building 9 - 28.73±feet AMSL. As such,the maximum permitted building
164
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
heights, pursuant to the definition, would be Building 10 - 74.83± feet and Building 9 - 63.73± feet
AMSL. Accordingly, the proposed buildings at top elevation of 55.67± feet ASML are below the
maximum permitted height.
Article XX.Landscaping,Screening and Buffer Regulations
Article XX of the Town Zoning Code sets forth standards for landscaping, screening and buffers.
Pursuant to§280-91,these standards are "...intended to enhance the appearance and natural beauty of
the Town and to protect-property values through preservation and planting of vegetation,screening and
landscaping material. Specifically, these standards are intended to enhance the appearance of major
travel corridors and business areas, to reduce excessive heat,glare and accumulation of dust, to provide
privacy from noise and visual intrusion;and to prevent the erosion of the soil,excessive runoff of drainage
water and the consequent depletion of thegroundwater table and the pollution of water bodies."
➢ General Requirements,§280-92:
Section 280-92(A)-(F) sets forth provisions that apply to any use in all zoning districts. Such
provisions are included below and a description of the proposed plan as it relates to said provision
follows.
A. Landscaping, trees and plants required by these regulations shall be planted in a growing
condition according to accepted horticultural practices, and they shall be maintained in a
healthygrowing condition...
B. A screening fence or wall required by these regulations shall be maintained by the property
owner in good condition throughout the period of the use of the lot...
C. All landscaping, trees and planting material adjacent to parking areas, loading areas or
driveways shall be properly protected from vehicular damage by barriers,curbs or other means.
D. To the extent possible, existing trees, vegetation and unique site features, such as stone walls,
shall be retained and protected.Existing healthy,mature trees,if properly located,shall be fully
credited against the requirements of these regulations.
E. Where lot size and shape or existing structures do not make it feasible to comply with the
requirements for a front landscaped area or landscaped parking area, the Planning Board may
approve planters,plant boxes or pots containing trees,shrubs and/or flowers to comply with the
intent of these regulations.
F. In cases where the edge of the pavement within a public right-of-way does not coincide with the
front lot line,the property ownershall landscape the area between the front lot line and the edge
of the street pavement.
As indicated on the General Layout Plan in Appendix C,upon implementation of the proposed action,
51.4 percent or 8.13± acres of the M-II property would consist of either planted trees, shrubs and
ground cover (1.67± acres), or existing vegetation that would be maintained (6.46± acres). The
existing vegetation to remain includes woodland area located primarily to the north, south and west
165
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
of the Project Area,and the planting plan includes landscaping on portions of the proposed Evergreen
concrete retaining wall, in the adjacent upland area for additional screening and along the southern
portion of the Project Area for visual screening. Specifically, as indicated on the Proposed Landscape
Plan in Appendix C:
• The upland area of the Evergreen concrete retaining wall extends from the six-foot chain-link
fence atop to the edge of the Construction Excavation Area.plantings of evergreen trees(Pitch
Pine [Pinus Rigida]), shrubs (Lowbush Blueberry [Vaccinium angustifolium]), and
grasses/groundcover (Switchgrass [Pacincum virgatum]) that would be create a multi-layer
screen for edge protection and visual enhancement to screen the proposed buildings from
surrounding views to the south.
• The northern and western portions of the retaining wall would include shrubs (i.e.,Bayberry
[Myrica Pensylvanica]) and small trees (Staghorn Sumac [Rhus Typhina] and Shadbush
[Amelanchier canadensis]), and a variety of grasses/groundcover (i.e., Switchgrass [Panicum
virgatum], Virginia Creeper [Parthenocissus quinquefolia], Common Milkweed [Asciepias
syriaca],and Groundsel Bush[Baccharis halimifolia]).The northern landscaped portion of the
Evergreen concrete retaining wall would be approximately 157 feet long in linear distance
and the western landscaped portion of the wall would be approximately 80 feet long in linear
distance.
• Three sections of the Evergreen concrete retaining wall would be filled with topsoil to allow
for seeding by wildlife. A 144±-foot long in linear distance and 124±-foot long in linear
distance topsoil-filled section of the Evergreen concrete retaining wall would be located north
and south of the western landscape schedule,respectively.A 370±-foot long in linear distance
topsoil-filled section of the Evergreen concrete retaining wall would be located west of the
northern landscape schedule.
• The proposed plantings in the adjacent area at or above building elevation would include
evergreen trees (Pitch Pine [Pinus Rigida]) and shrubs (Lowbush Blueberry [Vaccinium
angustifolium]).This landscaping schedule is proposed south, east, and west of the concrete
retaining wall for the two liquid propane tanks to be located south of Building 9.
Overall, as 51.4 percent of the M-II zoned portion of the subject property would consist of either
landscape or retained natural vegetation,the proposed action is consistent with the aforementioned
general requirements.
➢ Front Landscaped Area,§280-93:
Pursuant to§280-93(B), "[a]front landscaped area shall be required for all uses in all zoning districts.
The required landscaped area shall be covered with grass or other ground cover and shall include
appropriate trees and shrubs. As a minimum, in all nonresidential districts and in the Hamlet Density
Residential and R-40 Low-Density Residential Districts,one shade tree having a caliper of two inches shall
be planted within the front landscaped area for each 40 feet or fraction thereof of lot frontage. The
purpose of the landscaping is to enhance the appearance of the use on the lot but not to screen the use
from view."
166
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The front yard of the subject property consists of entirely woodland area in the northern extent of the
site and a limited area of the SYC facility with two existing buildings. The proposed action includes an
expansion project that would occur in the rear and side yards, and landward of the existing SYC
buildings. Accordingly,this requirement is not relevant to the proposed action.
➢ Transition Buffer Area,§280-94:
Pursuant to §280-94, "[t]he purpose of the transition buffer area is to provide privacy from noise,
headlight glare and visual intrusion to residential dwellings.A buffer area shall be required along all
boundaries of a nonresidential lot abutting any lot in a residential district." Section 280-94 C.requires
that the buffer area be "...of evergreen planting of such type,height,spacing and arrangement as,in the
judgment of the Planning Board, will effectively screen the activity on the lot from the neighboring
residential area.As a minimum,the planting shall consist of a double row of trees six feet in height planted
at intervals of 10 feet on center. Nonevergreen planting may be included to supplement evergreen
planting,but not to take its place." Section 280-94 D.allows for the use of a"landscaped earthen berm,
wall or fence of a location,height,design and materials approved by the Planning Board...for any portion
of the required planting and/or buffer area."
The Project Area is adjacent to the R-80 zoning district to the north,south and west. As indicated on
the Alignment Plan and Proposed Landscape Plan (see both in Appendix C), the existing woodland to
the north,south and west would be retained. As the proposed action would result in the creation of a
new forest edge for the Coastal Oak-Beech Forest and Successional Forest on the subject property,
supplemental plantings are proposed as mitigation for edge effects (see Section 2.4 of this DEIS for
further discussion). As such,the proposed action would comply with this performance standard.
➢ Landscaped Parking Area,§280-95:
Pursuant to§280-95(A),"[a]11 uses required to provide 20 or more off-street parking spaces shall have
at least 10 square feet of interior landscaping within the paved portion of the parking area for each
parking space and at least one tree with a two-inch caliper for every 10 parking spaces or fraction thereof.
Each separate landscaped area shall contain a minimum of 100 square feet, shall have a minimum
dimension of at least eight feet,shall be planted with grass or shrubs and shall include at least one tree of
not less than two-inch caliper." Section 280-95(B)requires that"[a]landscaped area shall be provided
along the perimeter of any parking area except that portion of the parking area which provides access to
a street or parking facility on an adjacent lot.Accessways to adjacent lots shall not exceed 24 feet in width
and shall not exceed two in number for each purpose. The landscaped area shall have a minimum
dimension of four feet,shall be planted with grass or shrubs and shall include at least one tree of not less
than two-inch caliperfor every 40feet along the perimeterofthe parking area.In cases where the parking
area adjoins a public sidewalk, the required landscaped area shall be extended to the edge of the
sidewalk." Finally,§280-95(C)requires that tree types used in parking lots"...shall include honey locust,
pine,oak or other similar fast-growing,hardy varieties or existing trees where appropriately located."
The proposed action includes the creation of new parking stalls on-site by striping gravel-surfaced
areas that are currently used for parking but are not formally marked. As indicated on the Alignment
Plan in Appendix C, 34 new parking stalls would be created with 11 stalls located along the east side
of Building 7,four(4) stalls located on the south side of Building 8,and 19 stalls located to the east of
167
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Building 8. Upon implementation of the proposed action, the available parking would be increased
from 23 stalls to 57 stalls. As these parking areas are existing,no additional plantings are proposed.
➢ Properties located adjacent to creeks,§280-96:
Pursuant to §280-96, "The rear yards of properties located adjacent to creeks shall include natural
vegetation and/or shall contain suitable planted vegetation to a minimum of20 feet inland from the mean
high-water-line elevation or wetland boundary to prevent erosion of the shoreline. Vegetation within the
buffer strip shall not be fertilized or chemically treated."
The existing tidal vegetation area to the east of Building 8 would remain undisturbed. There are no
proposed supplemental plantings along the eastern property line adjacent to Mattituck Creek as the
proposed development would occur landward of the existing SYC buildings. Therefore,the proposed
action is consistent with this requirement.
Relevant Plans
Southold Town Comprehensive Plan Update(Adopted September 2020)
As noted in Section 3.1.1 of this DEIS,the Town of Southold adopted the 2020 Comprehensive Plan in
September 2020 and provides specific goals and objectives for the Town. The relevant goals and
objectives from the 2020 Comprehensive Plan and the proposed action's consistency therewith is
presented below. A summary of the relevant chapters, goals and objectives are also provided in the
table below.
168
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 30-Consistency Analysis with the 2020 Comprehensive Plan
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Land Use and Goal 5: Protect the Town Character As noted in the 2020 Comprehensive Plan,many factors contribute to the quality of life within the Town of Southold including the Town's scenic,cultural and natural resources(see page
Zoning 33 in Chapter 3).The Land Use and Zoning chapter cites to the Community Character chapter where it indicates that the development patterns of Southold "were guided by agriculture
and maritime industries centered on waterways and overland transportation routes.The Town's overall character is anchored in the scenic quality of its built environment,landscapes,
and waterscapes" (page 1 in Chapter 5). The existing character of the site and surrounding area is primarily mixed-use maritime at the water's edge with residential land uses adjacent
and landward of such maritime uses.The subject property has been an established maritime use for 60 years and is zoned accordingly.It is noted that review of the Town of Southold Tax
Map Inquiry indicates that the two parcels to the north of the subject property,zoned M-II similar to the subject property,have a Town land use designation of industrial. However,the
Town land use map indicates the subject property is a Town land use designation of commercial although these parcels are used in a similar manner (maritime use).Additionally, the
northern most parcel to the east of the subject property,zoned M-II similar to the subject property,has a Town land use designation of industrial but is also used in a similar manner as
SYC with commercial fishing docks and loading pier.The other parcels zoned M-II and located south of the commercial fishing dock and loading pier are residentially developed and have
a Town land use designation of medium density residential.The properties zoned R-80 to the west of the subject property are agricultural uses.
The proposed action would expand in line with the existing scale of development on the subject property with the proposed buildings placed landward (behind) Buildings 7 and 8,and
perpendicular to Mattituck Creek,such that the length and mass would not be visibly obtrusive to users of Mattituck Creek.The proposed buildings would be constructed with the same
material as the existing buildings(i.e.,blue siding with white trim windows and eaves)such that it would blend with the existing maritime-use buildings on-site.
169
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 6: Protect and Enhance the Town's As evaluated in Section 2.2.2 of this DEIS, the proposed action would be protective of groundwater as well as surface water quality and quantity. The proposed action includes the
Natural Resources and Environment replacement of an existing individual on-site sanitary system with an I/A OWTS,and the installation of one additional I/A OWTS to accommodate all sanitary waste from the proposed
• Protect groundwater and surface water development in accordance with SCDHS requirements. As indicated in Section 1.3.2 of this DEIS, a recognized issue in the LWRP is the presence of cesspools and conventional septic
quality and quantity. systems near the Mattituck Creek shoreline that contribute to pollution levels in Mattituck Creek.As the proposed action would replace and upgrade an existing septic system with an I/A
• Protect land-based natural resources OWTS and install an additional I/A OWTS,the proposed sanitary system would reduce nitrogen loading.The proposed sanitary system would comply with Articles 6 and 19 of the SCSC
including agricultural soils and natural and would be 8,422±gpd below the maximum permitted sanitary discharge for the subject property(i.e., 1,076±gpd for post-development conditions whereas 9,498 gpd is the allowable
habitat for wildlife. sanitary discharge). With regard to surface waters,the proposed sanitary systems would be located within the 0-2-year groundwater contributing area to the Mattituck Inlet/Creek,Low,
and Tidal Tribs subwatershed. However, the installation of the two I/A OWTS would be set back from the creek and would be consistent with the recommendation of the SWP that
encourages the use of I/A OWTS to limit nitrogen loading to subwatersheds.Additionally,the proposed landscape materials would include species that are suitably adapted to the site
conditions to limit or preclude the need for fertilizers and pesticides which can also contribute to nutrient pollution.
The proposed action also includes the installation of a stormwater management system that would contain and recharge stormwater runoff on-site from a two-inch rain event. The
proposed stormwater management controls would include both structural infiltration (on-site leaching pools) and non-structural methods (pervious gravel) for infiltration to
accommodate and recharge stormwater from the Project Area and off-site contributing areas. It is noted that the NYSDEC issued a Tidal Wetlands Permit for the proposed action.
Additionally,as evaluated in Sections 2.2.2,the proposed action is consistent with the Town standards for the issuance of Trustees Wetlands Permit set forth in§275-12 of the Town Code.
Overall,based on the above,the proposed action would not have any significant adverse impacts on groundwater or surface water quality.
With regard to groundwater quantity, the proposed action would minimally increase potable water demand by 18 gpd for the new employees from 1,058± gpd to 1,076± gpd, and an
additional 220±gallons per year per boat for power washing and washing services in the fall and spring,which would be served by the SCWA.The proposed action includes discontinuance
of the use of existing on-site wells for potable water and connection to the public water supply through extension of the water main. Two existing wells would remain for on-site irrigation
use only. In total,approximately 1.22±acres of the 1.91±acres of landscaping would be irrigated with a projected average annual demand of 218±gpd. The proposed irrigation system
would implement smart irrigation controls to reduce or eliminate the use of the irrigation system during periods of rain.The irrigation system would be installed with a drip line to prevent
evaporation as well as rain sensors so as to not go on while it is raining.Furthermore,the proposed landscaping would consist of native and/or drought-tolerant plants and groundcover
to reduce irrigation needs.
As presented in Section 2.2.2 and discussed in the Groundwater Modeling Report(see Appendix L),groundwater flows east and north towards Mattituck Creek under existing and post-
development conditions.A slight increase in the water table of 0.01 feet is predicted immediately beneath the proposed excavation area. The model also demonstrates that there would
be no effects on nearby public and private wells.Additionally,the particle tracking analysis indicated that the domestic supply wells have relatively low pumping rates(325 gpd)with very
narrow zones of influence.When comparing existing conditions to post-development conditions,there are no noticeable changes in particle track trajectories. This is due to the fact that
the proposed site excavation would take place entirely above the water table and the proposed site modifications would only slightly add more water to the local aquifer system due to the
increased recharge post-construction. As such,the proposed site excavation is not predicted to have any impact hydraulically on the nearby surrounding domestic supply wellhead zones
of influence. Therefore,the proposed action would not have any significant adverse impact on groundwater quantity nor the surrounding local domestic supply wells.
With regard to protecting land-based natural resources,as discussed in Section 2.4.2 of this DEIS,to mitigate for the loss of forest trees associated with the proposed project,approximately
95 Pitch Pine trees would be planted.In addition,the Applicant will contribute 50 native trees(10-gallon container typical 1-inch caliper,5-6 feet tail)for installation at high-priority sites
with the Town of Southold,as identified by the Town Tree Committee,to enhance and beautify public grounds. Furthermore,to mitigate the potential edge effects,the proposed design
includes 27,333± SF of native trees,shrubs and groundcover along the new forest edge. This planted area is approximately 20-to-30 feet in width and will include dense,multi-layered
plantings(i.e.,plants that at maturity will occupy understory,and canopy-levels)with abundant conifer trees(86 pitch pine trees)to minimize light penetration into the new forest. After
establishment of these natural vegetation areas located landward of the proposed retaining wall,the total forested area on the subject property will increase from 11.76 acres to 12.39
acres.
170
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 7: Economic Prosperity (Facilitate the As described in Section 3.1.1 of this DEIS and according to the LWRP,the current maritime use has existed on-site for over 60 years and supports the maritime industry within the Town
growth of existing businesses and of Southold.The proposed project seeks to expand the business services of SYC to meet an unmet demand for indoor heated winter storage of yachts on the east end of Long Island.
encourage new business for stable and
sustainable employment) As indicated in Section 3.9.2 of this DEIS,the proposed action would create jobs,increase tax revenue to various taxing jurisdictions and increase sales tax revenue.Upon implementation
• This includes agriculture, aquaculture, of the proposed action,an additional 11 full-time positions are expected to be created by SYC.In addition to the creation of jobs,the proposed action is also expected to increase tax revenue
health care,renewable energy,tourism, to the Town of Southold, Suffolk County, and the State of New York. Based on consultations with the Southold Assessor (see correspondence dated June 25, 2021 in Appendix E), upon
light industrial, retail/service-based implementation of the proposed action, the Assessed Value would increase by approximately $41,000. With no exemptions, the increase in the property taxes would be estimated at
and maritime-related industry. Balance $59,450 based on the 2020-21 tax rate. However,the property would be eligible for the 485-b Business Investment Exemption,which is based on a sliding scale over 10 years. For the
economic prosperity with maintaining a first 3 years,there would be a 50 percent reduction for the increased assessment attributable to the two new buildings. For each year after,the reduction would decrease as follows:Year
high quality of life, the environment, 4:40 percent,Year 5: 30 percent,Year 6: 20 percent,Years 7 thru 9: 10 percent,and Year 10: 5 percent. After Year 10,the property taxes would not be eligible for exemptions.
and the unique character of the
communities. Sales tax revenue is also projected to increase upon implementation of the proposed action. As provided by SYC, based on an average cost of$20,000 per boat for service and storage
annually,and an expected 88 yachts to be stored on site,the approximately$1,760,000 would generate $151,800 annually in sales tax.Additional sales tax of approximately$322,575 is
projected to be generated by increased yacht sales by SYC.
As analyzed in Sections 2.1.2,2.2.2,2.3.2,and 2.4.2 of this DEIS,the proposed action is protective of the environment(e.g.,soil erosion,groundwater,surface water,flooding,and ecological
resources)and would comply with all relevant standards and regulations.The proposed action would also maintain the existing character of the site and surrounding area. As evaluated
in Section 3.5.2 of this DEIS, the existing character of the site surrounding area is a maritime setting along the water line (inclusive of water-dependent commercial uses and water-
dependent recreational uses)with residential land uses adjacent and landward of the maritime uses. The proposed development responds to an industry demand for large vessel storage,
while including appropriate mitigation measures in the construction and design in consideration of the surrounding residential land uses.The proposed action would expand in line with
the existing scale of development on the subject property placing the new buildings landward(behind) Buildings 7 and 8 and perpendicular to Mattituck Creek such that the length and
mass of the proposed buildings would not be visibly obtrusive to users of Mattituck Creek.Furthermore,the proposed buildings would be constructed with the same material as the existing
buildings (i.e.,blue siding with white trim windows and eaves) such that it would blend with the aesthetics of existing development on-site. The proposed retaining wall selected for the
development would be planted and in time,would blend into the natural landscape. Finally,the proposed landscape plan buffers the additional buildings from surrounding residential
uses. Overall,the proposed action continues the maritime use of the property while responding to a market demand,while maintaining the visual setting of the site as a mixed-use maritime
with residential community.
Overall, based on the above, implementation of the proposed action would facilitate the growth of SYC's and provide continued support to the maritime industry within the Town of
Southold.The proposed action would balance economic prosperity while maintaining a high quality of life,the environment and the unique character of the surrounding community.As
such,the proposed action is consistent with this goal of the 2020 Comprehensive Plan.
Transportation Infrastructure Goal 1: Reduce stormwater The proposed action would increase the total impervious surface area from 2.62±acres to 4.98±acres.Accordingly,there would be a resultant increase in the volume of stormwater runoff
and Infrastructure runoff generated on the subject property.The proposed action includes the installation of a stormwater management system to accommodate and recharge all stormwater runoff from the Project
The intent of this goal is for the Town to Area and off-site contributing areas on-site.The proposed drainage system would be designed to accommodate a two-inch rain event in accordance with Chapter 236 of the Town Code.
address the concern that an increase in While stormwater runoff generation would increase upon implementation of the proposed action,the proposed stormwater management system would include structural infiltration(on-
development will lead to an increase in site leaching pools)and non-structural methods(pervious gravel)for infiltration such that no stormwater runoff from the Project Area would run overland off-site or into Mattituck Creek.
impermeable surfaces. In addition to
traditional systems, the Town would also
like to see green infrastructure such as
vegetated swales be used in stormwater
management systems designed for
development within in the Town.
171
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Infrastructure Goal 2: Evaluate alternatives The proposed action includes the replacement of an existing individual on-site sanitary system with an I/A OWTS, and the installation of one additional I/A OWTS to accommodate all
to public sewers sanitary waste from the proposed development in accordance with SCDHS requirements. As discussed in Section 2.2.2 of this DEIS, the proposed sanitary systems would comply with
The intent of this goal is for the Town to Articles 6 and 19 of the SCSC.As such,the proposed action is in keeping with this goal of the 2020 Comprehensive Plan.
address the financial burden associated
with constructing, maintaining, and
extending the public sewer. The Town
would like for future development within
the Town to consider treating sewage
effluent on-site or community-based
systems.The Town notes that a roadblock to
growth within the Town is the inability to
treat wastewater.
Community Goal 2: Protect Cultural Resources As noted in Section 3.6.1 of this DEIS,Mattituck Inlet is the only harbor fronting the Long Island Sound in the Town of Southold and was identified as one often maritime centers on Long
Character • Objective 2.4 - Protect and enhance Island in the Long Island Sound Coastal Management Program. The surrounding area around Mattituck Inlet and Mattituck Creek has been an important maritime center for over 60
resources that are significant to the years.48 Thus,the community character of Mattituck Inlet and Mattituck Creek, including the subject property and those areas surrounding it, have had an established commercial and
culture of Southold Town. maritime component as rooted in the Town's overall character.As part of these components,buildings are present along the creek to support the maritime and commercial uses of this
o (B) - Protect the character of area.As such,the construction of two additional buildings on the subject property,which is currently improved with seven (7) buildings for the existing maritime use,is consistent with
historic agricultural and maritime the maritime character of the subject property and surrounding area. The proposed project seeks to expand the business services of SYC to meet an unmet demand for indoor heated
areas by maintaining appropriate winter storage of yachts on the east end of Long Island.The proposed action would expand in line with the existing scale of development on the subject property.The proposed buildings
scales of development, intensity of would be constructed behind Buildings 7 and 8 perpendicular to Mattituck Creek such that the length and mass of the proposed buildings would not be visibly obtrusive to surrounding
use,and architectural style properties located along Mattituck Creek. Furthermore, the proposed buildings would be constructed with the same material as the existing buildings (i.e., blue siding with white trim
o (E) - Preserve and encourage windows and eaves)such that it would blend with the aesthetics of existing development on-site.
traditional uses defining the
agricultural and maritime character It is further noted that the NYS Office of Parks,Recreation and Historic Preservation(OPRHP)has reviewed the proposed action and a determination of no impact upon cultural resources
of the area. (historic and archaeology)has been issued(see Section 3.11.2 and Appendix T of this DEIS).
Based on the above,the proposed action would be consistent with this goal and relevant objective.
4£3 httns://docs.dos.n ov/opd lwr LWRP/Southold TEA end entl Final�SoutholdA end.pdf
172
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 3: Preserve Quality of Life in As indicated in the TIS (see Appendix 0),the excavation phase would generate the most amount of traffic.The excavation phase has been scheduled such that it would occur during the
Residential Neighborhoods winter months when there is less traffic and would not occur on weekends.Proper wayfinding measures would be utilized,a site guard booth would be constructed to direct construction
traffic, Tier 4 certified by U.S. EPA standards trucks would be used and all Jake Brakes would be turned off,and an asphalt binder will be installed on the shoulder of Mill Road. Impacts
• Objective 3.2 - Reduce impacts from have been mitigated to the maximum extent practicable.
traffic.
• Objective 3.3 - Reduce impacts from As described in Section 3.4.2 of this DEIS,the proposed site lighting would consist of light poles and building fixtures as shown on the Details sheet(see Appendix C). To mitigate light
noise and light pollution trespass and glare, all lighting would be shielded and directed downwards at an intensity compliant with Chapter 172 of the Town Code (Outdoor Lighting). The photometric analysis
• Objective 3.4 - Preserve community illustrated on the Details sheet(see Appendix C)demonstrates that the proposed design would not result in any off-site or trespass lighting.As such,the proposed action would be consistent
character of residential neighborhood. with this goal from the 2020 Comprehensive Plan.
To mitigate potential impacts from noise generation during construction,all excavation,loading,and removal operations would occur Monday through Saturday from 7:00 am to 5:00 pm
in accordance with§180-7 of the Town Code(Noise, Prevention of). No work would be performed on Federal or State holidays.Also,all gasoline or diesel-powered machinery would be
equipped with adequate mufflers to reduce the impact of noise on the surrounding community. Additionally,the Jake Brake that is on some diesel engines would be turned off to minimize
the noise associated with the trucks and all backup alarms on trucks would be minimized by on-site traffic control.Although the proposed action would result in an increase in ambient
noise levels during construction,they would be temporary in duration and all activities would comply with the Town Noise Code. In the post-development conditions,the proposed use is
for boat storage with vessels arriving via Mattituck Creek. As a proposed winter storage facility,the buildings would be largely inactive for almost half of the year. The noise would occur
when boats are loaded into and out of the building. Due to the proposed grading,the retaining wall would act as a sound barrier,largely containing the noise within the graded area.no
receiving locations exceed 6 dBA above the Existing Condition sound levels.This is categorized as no impact as classified by the NYSDEC evaluation criteria.The greatest predicted increase
would be 4 dBA at Receiver R2.Furthermore,the projected sound levels also meet the conditions of the Noise Code at all receiving locations.
Regarding community character, based upon the diversity of land uses and zoning designations within the 1,000-foot radius of the subject property, the community character of the
surrounding area is likewise varied.The community character of the site and surrounding area is predominantly maritime use along the water's edge with residential uses interspersed.
The proposed action would maintain this mixed-use setting. The proposed design situates the proposed buildings behind Buildings 7 and 8 and perpendicular to Mattituck Creek such
that the length and mass of the proposed buildings would not be visibly obtrusive to users of Mattituck Creek. The proposed landscape plan includes buffer plantings for surrounding
residential land uses. As indicated in the renderings prepared by Jeffrey T.Butler,P.E.,P.C.,the post-development viewshed would minimally change with the proposed design.
Based on the above,the proposed action would be consistent with this goal and objectives of the 2020 Comprehensive Plan.
173
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 4: Protect Natural Heritage As noted in Section 3.6.1 of this DEIS,Mattituck Inlet is the only harbor fronting the Long Island Sound in the Town and was identified as one of ten maritime centers on Long Island in the
LISRCMP.The areas surrounding Mattituck Inlet and Mattituck Creek are identified in the Town's LWRP as an important maritime center as all water-dependent uses within the Reach are
Town's nattural heritage through
• Objective 4. Elevate and preserve the concentrated on Mattituck Inlet and Mattituck Creek(Section II D-5 and Section II-J Reach 1-3). Furthermore,according to the 2020 Comprehensive Plan,the development patterns of the
preservation of the working landscapes Town of Southold"were guided by agriculture and maritime industries centered on waterways and overland transportation routes.The Town's overall character is anchored in the scenic
and waterscapes and the people who quality of its built environment,landscapes,and waterscapes" (page 143).Thus,the community character of Mattituck Inlet and Mattituck Creek,including the subject property and those
interact with them. areas surrounding both the inlet and creek,have had an established commercial and maritime component as rooted in the Town's overall character.As part of these components,buildings
o (B) - Provide for and support the are present along the Creek to support the maritime and commercial uses of this area.As such,the construction of two additional buildings on the subject property,which is currently
commercial and recreational use of improved with seven(7)buildings for the existing maritime use,is consistent with the maritime character of the subject property and surrounding area.
Southold Town's marine
ecosystems. The proposed development would respond to an industry demand for large vessel storage while including appropriate mitigation measures in the construction and design in consideration
• Objective 4.2 - Protect and restore of the surrounding residential land uses.The proposed action would expand in line with the existing scale of development on the subject property.Based on the above,the proposed action
ecological quality throughout Southold would preserve the working waterscape within this area of the Town as well as support the commercial use of the Town's marine ecosystems.
Town
o (B) - Promote sustainable use of Regarding ecological resources, an ecological inventory and assessment has been performed by LUES. As noted in Section 2.4.2, wildlife species that are most likely to be adversely
living marine resources in Long impacted by the proposed action,specifically the reduction in Coastal Oak-Beech forest habitats from 12.60 acres to 8.28 acres,include birds or other wildlife that inhabit mature forests,
Island Sound, the Peconic Estuary, forest interiors, or have large patch size requirements. Bird species that are not dependent on habitat patch size and/or species that have tolerance for small habitat patches or edge
and Town waters. habitats are likely to continue to utilize the smaller wooded habitat patches remaining after completion of the project. These species are expected to persist on the subject property,albeit
o (E) - Avoid adverse changes to the at lower abundance due to less available habitat and reduced habitat quality in remaining forests resulting from intensification of adverse edge effects,including increased abundance of
Long Island Sound and Peconic Bay nest predators and nest parasites.The displacement or loss of habitat at the site for individuals of abundant bird species,even those that are patch-size dependent,is not likely to adversely
ecosystems that would result from
impairment ecological quality. impact the regional populations of these species. No adverse impacts to wildlife or wildlife habitat are expected to result from new outdoor lighting associated with the proposed action.
The proposed lighting shall be dark skies-compliant,downward directed lighting resulting in no increase in light levels beyond the limit of the proposed buildings,access roads,and parking
surfaces such that it would not impact wildlife
Furthermore,the proposed action would not affect the Applicant's participation in the Town's Pump-Out program;nor would it affect the existing CCE Marine Program that occurs on-site.
These services would continue to enhance the quality of the coastal habitats within Mattituck Creek.
Goal 5: Protect the Unique Character of The 2020 Comprehensive Plan states that the development patterns of Southold"were guided by agriculture and maritime industries centered on waterways and overland transportation
Individual Hamlets routes.The Town's overall character is anchored in the scenic quality of its built environment,landscapes,and waterscapes" (page 1 in Chapter 5).As noted in Section 3.6.1 of this DEIS,
(A) - Revitalize Mattituck Inlet into a
Mattituck Inlet is the only harbor fronting the Long Island Sound in the Town of Southold and was identified as one of ten maritime centers on Long Island in the Long Island Sound Coastal
recreational and commercial Management Program. The surrounding area around Mattituck Inlet and Mattituck Creek has been an important maritime center for over 60 years. Thus, the community character of
maritime hub Mattituck Inlet and Mattituck Creek,including the subject property and those areas surrounding it,have had an established commercial and maritime component as rooted in the Town's
(2) Update and implement the overall character.
Harbor Management Plan.
The 2020 Comprehensive Plan also acknowledges the importance of protecting the maritime culture and industry as it is a part of the unique character of the Town and more specifically
the hamlet of Mattituck.According to the 2020 Comprehensive Plan"[i]n 1998,the Town recognized the importance of the working landscapes and adopted the Community Preservation
Project Plan to preserve not only the land,but also the people who interact with it for their livelihood.In 2004,Southold Town's LWRP was adopted,elevating the importance of protecting
the working maritime culture and the areas historically and presently committed to them" (page 12 in Chapter 5).As such,the proposed action would maintain the maritime use of the
subject property along Mattituck Creek and expand the business services of SYC to meet an unmet demand for indoor and heated winter storage of yachts on the east end of Long Island.
The proposed action would keep those yachts that utilize local waters during the peak season on Long Island rather than being transported to warmer climates in the winter which would
further support and revitalize the maritime and commercial hub in this area.Overall,the proposed action would be consistent with this goal and objective from the 2020 Comprehensive
Plan.
174
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Natural Resources Water Resources Section: The proposed action would increase potable water demand by 18±gpd for new employees and additional 220±gallons per year per boat for power washing and washing services in the
and Environment fall and spring,which is an insignificant increase. Of importance, upon implementation of this proposed action, the total potable water demand of SYC (1,076±gpd plus any additional
Goal 1: Conserve water quantity water for boat washing/power washing,which could be approximately 220 gallons per year for each boat would be served entirely b the SCWA through a water main extension to be
g pp Y g p Y ) Y Y g
funded by SYC. This would decrease the amount of water being withdrawn on-site via private wells. This water main extension would give the seven property owners,identified in Table
12 and discussed in Section 2.2.1 of this DEIS,with the ability to connect to public water but remain served by private wells the opportunity to connect to SCWA and further decrease the
amount of water being withdrawn from the aquifer.An irrigation system is proposed to be installed with the water supply to be provided via two of the four existing on-site wells. While
the irrigation supply would represent a new withdrawal on-site,with 218± gpd projected to be used (averaged annually),the net withdrawal of groundwater on-site remains less than
under the current condition. As indicated in Section 2.2.1 of this DEIS,the existing water demand supplied by on-site wells is 1,058±gpd. As indicated in the Groundwater Modeling Report
(see Appendix L and Section 2.2.2 of this DEIS),the decrease in on-site water withdrawal combined with the increase in stormwater recharge with the proposed drainage system would
result in a beneficial impact on the depth of the freshwater lens and no impact on surrounding wells. Based on this above, the proposed action would conserve water quantity to the
practicable extent possible and would be consistent with this goal of the 2020 Comprehensive Plan.
Goal 2: Protect groundwater quality As evaluated in Section 2.2.2 of this DEIS and described in this table above,the proposed action complies with all relevant standards,regulations and agency recommendations intended
for the protection of groundwater quality,including the 208 Study,Suffolk County Comprehensive Water Resources Management Plan,Articles 6,7, 12,and 19 of the SCSC,and SWP.
Goal 3: Protect surface water quality As evaluated in Section 2.2.2 of this DEIS and described in this table above,the proposed action would not have any significant adverse impacts on surface water quality.
• Objective 3.1-Continue to implement As evaluated in this section of the DEIS,the proposed action would be consistent with the Town's adopted LWRP.The Town's LWRP used local planning frameworks includes the LISRCMP
the goals and objectives of the LWRP, to guide the development of the LWRP policies.As evaluated in the Boat(Vessel) Study in Appendix M and summarized in Section 2.2.2 of this DEIS,the seasonal fluctuations in Nitrogen,
Peconic Estuary Program(PEP),CCMP, Dissolved Oxygen, and Chlorophyl-a at the water quality monitoring station closest to the subject property are comparable to those in Long Island Sound and overall water quality of
and LISS to address target issues on Mattituck Harbor was identified as fair to good based on conditions set forth in the LISS. Overall,the water quality of Mattituck Harbor between 2012 and 2020 is comparable to that of
surface water quality. the eastern Long Island Sound.As the proposed action would rely on boats existing within local waters,
• Objective 3.4-Minimize illicit The proposed action would not involve any illicit discharges into any nearby surface waters.
discharges into surface waters.
• Objective 3.5-Avoid and minimize As indicated earlier,the proposed action includes upgrading the existing on-site conventional septic system to an I/A OWTS and a new I/A OWTS would be installed.As indicated on the
non-point pollution of coastal waters Water and Sanitary Details(see Appendix C)and described in Section 2.2.2 of this DEIS,there would be an adequate separation distance of three feet between the bottom of the I/A OWTS
structures and groundwater in accordance with Article 6 of the SCSC (see Table 15 in Section 2.2.2 of this DEIS)to protect surface water and groundwater against potential contaminants
and other pollutants. Furthermore, the proposed stormwater management system would contain and recharge stormwater from the Project Area and off-site contributing areas via
structural(on-site leaching pools)and non-structural methods (pervious gravel)for infiltration. As such,the proposed action would minimize non-point pollution of coastal waters.
Goal 4: Improve watershed management The proposed action includes an expansion of the existing maritime use in accordance with the bulk and dimensional requirements for development in the M-II zoning district. The
Objective 4.4-Limit the potential for analyses presented in Section 2.2.2 of this DEIS, and discussed in this table above, demonstrate that the proposed development would not impact water quality or quantity. Regarding
•
adverse cumulative impacts of cumulative impacts,there were no potential developments identified by the Town of Southold for cumulative assessment.
watershed development on water
quality and water quantity
175
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 5: Protect freshwater and marine As indicated in Sections 2.2.2 and 2.4.2 of this DEIS, the subject property is located to the adjacent west of Mattituck Creek and to the south of Mattituck Inlet which are both NYSDOS
habitats designated Significant Coastal Fish and Wildlife Habitat.The proposed action would occur outside the designated habitat and would not affect any significant fish or wildlife communities.
• Objective 5.1-Identify,protect and Furthermore, the proposed action would implement a comprehensive stormwater management program to capture and recharge all stormwater from the Project Area and off-site
enhance quality of coastal habitats. contributing areas such that no runoff would overflow into Mattituck Creek or onto surrounding properties.The proposed action has also been reviewed and approved through the issuance
• Objective 5.2-Protect tidal and of a Tidal Wetlands Permit from the NYSDEC.
freshwater habitats It is further noted that the projected change in boat traffic is minimal. As indicated in the Boat (Vessel) Study in Appendix M of this DEIS, the projected 88 vessels to be stored in the
proposed buildings would arrive and leave the site via Mattituck Creek over a 12-week period in the spring and fall months. When averaged over the period of arrival or departure,the
projected number of boats averages to seven(7) boats per week or one-to-two boats per day. With approximately 547 boats active in Mattituck Creek on a peak season day, even if the
increase of one-to-two boats per day were to occur on a peak season day,this would equate to 0.18-to-0.36 percent increase in boat traffic. Such an increase is nominal.
The proposed action would also not affect the Applicant's participation in the Town's Pump-Out program; nor would it affect the existing CCE Marine Program that occurs on-site.These
services would continue to enhance the quality of the coastal habitats within Mattituck Creek.
As noted in Section 2.4.2, no physical disturbance to the small area (0.63-acre) of intertidal marsh and high marsh tidal wetlands on the southern end of the property is proposed and,
accordingly,there would be no loss of tidal wetland area resulting from the proposed action.
The proposed project provides for mitigation measures that would contribute to potential surface water quality and habitat quality improvements in Mattituck Creek, such as new I/A
OWTS's and new stormwater drainage infrastructure.
Land Resources Section: The proposed action would modify the upland and valley slope;however,the existing slope face shows natural moraine and outwash plain sediments that have been augmented in places
with spoil and dredged material. While the landform would be modified,the proposed development includes structural stabilization to correct existing slope failure due to the placement
Goal 1: Protect soils and geologic features of dredge material. As indicated in Section 2.1.3 of this DEIS, mitigation measures have been incorporated into the proposed design,including erosion and sedimentation controls that
• Objective 1.4-Preserve the unique would be undertaken prior to and during construction. Also,site clearing,grubbing,and stripping would be performed during dry weather conditions to prevent excessive rutting and
geologic features of the Town through the mixing of organic debris with the underlying soils.As such,the proposed action would be consistent with this recommendation of the 2020 Comprehensive Plan.
avoidance and/or minimization of
impacts from development and natural
disasters.
176
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 2-Protect upland habitats and trees In total,the proposed action would require the removal of 634 trees(26.3 percent)with 15 trees(0.62 percent) from the R-80 zoned portion of the subject property and 619 trees (25.7
percent)from the M-II zoned portion of the subject property.Approximately 73 percent(1,774 trees in total) of the total trees at the subject property would be retained with 1,039 trees
• Objective s grasslands,
Preserve and manage 43.1 percent)retained on the R-80 zoned portion of the subject property and 735 trees 30.5 percent)retained on the M-II zoned portion of the subject property. To mitigate the impacts
the Town's grasslands,old field,and ( 1 p p � ( 1 p p �� g p
woodlands habitats to achieve the to the forest edge,the Applicant will plant 27,333 SF of native trees,, shrubs and groundcover along the new forest edge. This planted area is approximately 20-30 feet wide and will
highest ecological quality and species include dense, multi-layered plantings (i.e., plants that at maturity will occupy understory, and canopy-levels) with abundant conifer trees (i.e., 86 pitch pine trees) to minimize light
diversity. penetration into the new forest.After the establishment of these natural vegetation areas to be located landward of the proposed retaining wall,the total forest area on the property will
• Objective 2.2-Protect and restore increase from 11.76± acres to 12.39±acres. Additionally,to mitigate for loss of forest resources,the Applicant will contribute fifty(50) native trees (10-gallon container typical 1-inch
upland habitat ecological quality by caliper,5-6 feet tall)for installation at high-priority sites with the Town of Southold,as identified by the Town Tree Committee,to enhance and beautify public grounds
adhering to the following measures:
(A)-Retain and add indigenous
plants to maintain and restore values
of upland ecological communities.
(B)-Protect existing indigenous
plants form loss or disturbance to the
extent practical.
(C)-Avoid permanent adverse
change to ecological processes that
provide values to the residents of the
Town and the region.
(D)-Reduce adverse impacts on
upland habitats due to development.
(E)-Mitigate impacts of new
development where avoidance of
impacts is not practicable.
Goal 3-Protect fish and wildlife resources The subject property lies adjacent to the west of Mattituck Creek and south of Mattituck Inlet,which are designated by the NYSDOS as a Significant Coastal Fish and Wildlife Habitat.The
Objective 3.3-Protect and restore
proposed action would occur outside the designated habitat and would not affect any significant fish or wildlife communities.Furthermore,all stormwater from the Project Area and off-
Significant Coastal Fish and Wildlife site contributing areas would be contained and recharged on-site.The proposed action would not affect the Applicant's participation in the Town's Pump-Out program;nor would it affect
Habitats. the existing CCE Marine Program that occurs on-site.It is noted that the NYSDEC issued a Tidal Wetlands Permit for the proposed action and all conditions in the issued permit would be
implemented.
As described in Section 2.4.2 of this DEIS and included in the Ecology Report in Appendix N,the decreased habitat availability associated with the loss of 32 percent of the site's forest
habitat would likely decrease the abundance and diversity of the plant and wildlife species that utilize the site. Wildlife that utilizes the site's successional shrubland and successional
forest habitats would not be adversely impacted by the proposed action due to the maintenance of 13.7 acres(approximately 89 percent)of these successional habitats. Similarly,wildlife
species that are habitat generalists and utilize all of the site's habitats (i.e.,successional habitats,forests,and developed areas)would also unlikely be adversely impacted by the proposed
action, due to their general tolerance for human activity. Examples of these habitat generalists include raccoon, opossum,and white-tailed deer as well as birds such as American robin,
common grackle, black-capped chickadee, blue jay, and wild turkey. Wildlife species that would be most likely adversely impacted by the proposed action, specifically the reduction in
Coastal Oak-Beech forest habitats from 12.60± acres to 8.28± acres, include birds or other wildlife that inhabit mature forests, forest interiors, or have large patch size requirements.
Songbirds that are expected to utilize the site's Coastal Oak-Beech forests include species that forage for insects on and under bark(such as woodpeckers and nuthatches),glean insects
from canopy foliage (such as vireos), and/or catch airborne insects (such as flycatchers and wood pee-wees). Some bird species may be found in both small and large habitat patches,
whereas other bird species are more frequently found in larger habitat patches than smaller patches. Bird species that are not dependent on habitat patch size and/or species that have
tolerance for small habitat patches or edge habitats are likely to continue to utilize the smaller wooded habitat patches remaining after completion of the project. Many of the bird species
that inhabit the site and have been found to be insensitive to patch size,utilize small forest patches (between 2.0 and 8.0 acres in area),or utilize edge habitats These species are expected
to persist on the subject property,albeit at lower abundance due to less available habitat and reduced habitat quality in remaining forests resulting from intensification of adverse edge
effects,including increased abundance of nest predators and nest parasites.
177
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 7-Adapt to the effects of climate As described in Section 2.3.2 of this DEIS,implementation of the proposed action would not increase the subject property's susceptibility to sea level rise with and without storm inundation.
change and rising sea levels. With regard to coastal flooding and sea level rise,the New York State Flood Risk Management Guidance for Implementation of the Community Risk and Resiliency Act provides flood-risk
management guidelines for the elevation of structures.As the subject property cannot be relocated outside of the coastal zone,certain considerations would be considered to address the
risk of future flooding.Although Buildings 9 and 10 are outside of the mapped floodplain,they would be sited at an elevation of 10 feet AMSL,which is two feet above the adjacent BFE.
This is the recommended elevation for non-critical infrastructure such as the proposed action While it is not expected that there would be any significant adverse impacts from climate
change, sea level rise and coastal flooding, the separation distances from drainage and sanitary leaching infrastructure to groundwater would be reduced with rising groundwater
elevations. As such,modifications to select systems may be required by the 2050s should the projections be accurate. As such,the Applicant would continue to assess the subject property's
vulnerability to sea level rise and ensure any actions to be taken are consistent with the prevailing guidance to protect the overall operations of the marina.As such,the proposed action
is consistent with this goal of the 2020 Comprehensive Plan.
Goal 10-Reduce light pollution As indicated earlier in this section of the DEIS, the proposed site lighting plan has been designed in accordance with Chapter 172 of the Town Code (Outdoor Lighting). As such, the
proposed action would be consistent with this goal from the 2020 Comprehensive Plan.
Economic Goal 1 - Encourage new and facilitate the The subject property has been an established marina use for over 60 years and supports the maritime industry within the Town of Southold. The proposed project seeks to expand the
Development growth of existing business sectors that business services of SYC to meet an unmet demand for indoor and heated winter storage of yachts on the east end of Long Island.As indicated in Section 1.3.2 of this DEIS,the proposed
pursue stable and suitable employment. action would create new jobs for the servicing of the larger vessels to be stored on-site,while continuing to support SYC as an important maritime use on Mattituck Creek. In turn,the
proposed action benefits the existing SYC staff as the business operation responds to market demands for indoor climate-controlled storage. As such,the implementation of the proposed
action would facilitate the growth of SYC and provide continued support to the maritime industry within the Town of Southold.As such,the proposed action is consistent with this goal of
the 2020 Comprehensive Plan.
Goal 2 - Promote economic development As indicated in Section 3.9.2 of this DEIS,the proposed action would increase tax revenue to various taxing jurisdictions and increase sales tax revenue. Based on the Southold Assessor
that ensures an adequate tax base without (see Appendix E), the proposed action would increase property taxes by approximately $59,450 based on the 2020-21 tax rate. Sales tax revenue is also projected to increase by
compromising the unique character of the approximately$151,800 annually from the storage and boat repair, maintenance and/or upgrade services performed by SYC staff. Additional sales tax of approximately$322,575 is
Town. projected to be generated by increased yacht sales by SYC.
• Objective 2.4 - Expand and improve
infrastructure as appropriate, to serve As analyzed in Section 2.1.2 (Soil and Topography),Section 2.2.2 (Water Resources),Section 2.3.2 (Flooding and Climate Change),and Section 2.4.2 (Ecological Resources)of this DEIS,the
existing businesses and accommodate proposed action would be designed to be protective of the environment(e.g.,soil erosion,groundwater,surface water,flooding,and ecological resources).The proposed action would also
new growth. be consistent with the community character of the surrounding area,as described above. Overall,based on the above,implementation of the proposed action would facilitate the growth
(A) - As commercial/industrial of SYC's and provide continued support to the maritime industry within the Town of Southold.The proposed action would balance economic prosperity while maintaining a high quality
development occurs in conformance of life,the environment,and the unique character of the surrounding community.As such,the proposed action is consistent with this goal and objective of the 2020 Comprehensive Plan.
with Town zoning, maintain and
provide infrastructure in a manner
that supports the planned non-
residential growth of the Town.
178
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Chapter 2020 Plan Goal/Objective Consistency Analysis with Proposed Action
Goal 4- Preserve and encourage industries As indicated in Section 1.1.2 of this DEIS,the subject property is a designated host for the CCE Marine Program for shellfish restoration.As a host,SYC has an executed MOU with the CCE
that support existing and future agriculture Marine Program to support CCE's involvement with the LISRP,inclusive of housing FLUPSY in dockside areas that are used by CCE for shellfish harvesting.The intent of the LISRP is to
and aquaculture uses "...enhance natural stocks of hard clams and eastern oysters throughout the Long Island region and establish self-sustaining populations and help improve water quality..." As part of this
• Objective 4.7 - Continue to pursue program,NYSDEC instructed CCE to"...spawn,grow-out and plant millions of clams and oysters throughout Long Island..."with FLUPSY's being the most efficient method for the grow-out
relationships through Cornell of seed clams.49 According to SYC,as a host,the CCE Marine Program has enabled approximately 6 million clams to be grown at the marina over the last year(and over 10 million in the
Cooperative Extension and other key last four years).A minimum of approximately 1.5 million clams per year are expected to be harvested from the FLUPSY units at SYC.Once harvested,the clams are relocated to a NYSDEC-
players to promote the Town's designated sanctuary site pursuant to the LISRP. Furthermore, each of the eight(8) FLUSPYs currently located at SYC enable 600 gallons of water per minute to be passed through the
aquaculture industry, and the Southold millions of juvenile clams housed in these systems(see the Boat[Vessel] Study in Appendix M).According to CCE,the Mattituck Inlet has proven to be the best location for regrowth in the
Project in Aquaculture Training(SPAT). Town of Southold and the FLUPSY site at SYC is integral to shellfish restoration on Long Island. Upon project implementation,the subject property would continue to host the CCE Marine
Program.The proposed action would not impact the existing CCE Marine Program.As such,the proposed action would be consistent with this goal and objective of the 2020 Comprehensive
Plan.
Goal 5 - Preserve, encourage, and continue The ability for large marinas to expand services that caterto customer needs is specifically recognized by Objective 5.4 of this goal.The proposed action would further this goal by expanding
to support existing and future maritime uses its services to meet an unmet demand for indoor and heated winter storage of yachts on the east end of Long Island.As mentioned in this section above,the proposed action would create
as an important business sector within the jobs,increase tax revenue to various taxing jurisdictions and increase sales tax revenue further supporting the Town's economy.
Town's economy.
Regarding Objective 5.1,as evaluated in this section of the DEIS below,the proposed action is consistent with the adopted LWRP.
• Objective 5.1 - Maintain consistency
with the policies adopted under the Regarding Objective 5.4, as excerpted from the 2020 Comprehensive Plan, "Large marinas are facing pressures to expand their services to include swimming pools, restaurants, boat
Local Waterfront Revitalization rentals,storage space,and other services that cater to their customer's needs. In order to accommodate this demand and continue to promote Southold's traditional maritime heritage,
Program. the Town should consider zoning amendments for marinas of appropriate size and location to better match the needs of their clients" (emphasis added) (page 21 in Chapter 7).While
• Objective 5.4-Consider amendments to this objective seeks zoning amendments to allow for such uses,the proposed action does not require any such relief under the M-II zoning district.The subject property is an important
the zoning of larger marinas to better maritime use as it has been established within the Town for over 60 years.The proposed action would be a viable use as it would expand upon the existing marina use without the need
accommodate and position them as a for any zoning amendments.As such,the proposed action would achieve this objective without the need for zoning amendments.
viable use in the Town's economy.
• Objective 5.7 - Enhance the connection Finally, regarding Objective 5.7,as excerpted from the 2020 Comprehensive Plan, "Mattituck Inlet is an important economic, environmental, and recreational resource in the hamlet of
between Mattituck Inlet and the hamlet Mattituck.Located just north of the hamlet center,Mattituck Inlet runs two miles into the North Fork from Long Island Sound and is the only harbor on the 50±mile stretch between Port
center. Jefferson and Orient Point.As such,Mattituck serves as an important maritime location with the Inlet being a popular destination for boaters.The hamlet's accessibility to water,in addition
(A) Create a program aimed at to a designated anchorage,a Town park and boat ramp,marinas,and maritime uses located close to the hamlet center make it a key economic driver"(page 23 in Chapter 7).The proposed
providing bicycle use between the action would provide yacht storage in the off-season and is not anticipated to generate foot traffic to the hamlet center.Therefore,this objective is not applicable. As discussed in Sections
local marinas and the hamlet center. 1.1.1, 1.3.1,and 2.2.2,USACOE would continue its routine dredging of Mattituck Harbor.The proposed action does not include or require any in-water work as the proposed yacht size is
(B) - Increase access through regular able to safely navigate the Inlet and Creek.Therefore,this objective is not applicable.
dredging of Mattituck Inlet.
Natural Hazards Goal 1 - Mitigate the effects of natural As excerpted from the 2020 Comprehensive Plan,"Building coastal resiliency into the Town's plan will help the economy,make housing safer,and protect future investments in property,
hazards to achieve coastal resiliency, both private and public" (page 4 in Chapter 12).While the goals and objectives of this chapter are directed to the Town to address,the proposed action implements several initiatives to
protect public safety, and reduce economic improve the subject property's coastal resiliency,protect public safety,and reduce economic loss.The FFE of the proposed boat storage buildings would be 10 feet AMSL,two feet above
loss. the adjacent FEMA floodplain,as required by Chapter 148(Flood Damage Prevention)of the Town of Southold Town Code.Other infrastructure would be situated at a minimum elevation
Goal 2-Complete a Post-Disaster Recovery of 9 feet AMSL.Sea level rise projections discussed in Section 2.3.2 would not inundate the subject property and impacts from sea level rise and storm inundation are concentrated at the
Plan and Reconstruction Plan bulkhead.Additionally,if a 16-inch rise in groundwater elevation occurred,the drainage infrastructure proposed would be supplemented with shallow drainage structures to accommodate
Goal 3 - Provide education to the public stormwater runoff. As discussed in Section 2.3.2, if the water table experienced the 0.01-foot rise projected, the groundwater model (see Appendix L) shows no particle deflections or
relating to natural hazards trajectory changes,and thus,the increased recharge would have no effect on nearby wells.The proposed action's consideration of flooding and climate change impacts protects the subject
property as well as the Applicant's investment in the operation of the marina, boat maintenance,and boat storage facilities. Goals 2 and 3 are not applicable to the proposed action and
therefore a consistency analysis was not completed.
49 https://IisheIlfishrestorationproject.org/
179
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in Table 30 above,the proposed action is consistent with the relevant goals and objectives
of the 2020 Comprehensive Plan.
Town of Southold Local Waterfront Revitalization Program
The 13 policies implement the NYSDOS 44 coastal policies and represent a local refinement of the
LISRCMP policies.Said policies and consistency therewith are included in the table below.
180
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 31-Consistency Analysis with the Town of Southold LWRP
Coast Policy Descri tion Analysis of Proposed Action
Developed Coast
Policy 1 Foster a pattern of development in the Town of Upon implementation of the proposed action,the existing maritime use on the subject property would continue.The proposed action would expand in line with the existing
Southold that enhances community character, scale of development on the subject property.The proposed buildings would be constructed behind Buildings 7 and 8 perpendicular to Mattituck Creek such that the length
preserves open space,makes efficient use of and mass of the proposed buildings would not be visibly obtrusive to surrounding properties located along Mattituck Creek. Furthermore,the proposed buildings would be
infrastructure,makes beneficial use of a coastal constructed with the same material as the existing buildings (i.e., blue siding with white trim windows and eaves) such that it would blend with the aesthetics of existing
location,and minimizes adverse effects of
development. development on-site.As described in Section 3.5.2 of this DEIS, 5.51±acres of the existing forested land on the western portion of the subject property would be removed.
However, 11.76±acres of forested area on the western portion of the subject property would remain and an additional 1.67± acres of landscaping would be planted. Upon
project implementation,the tree line would be setback for a distance of approximately 500±feet.As indicated on the renderings included in the Appendix Q of this DEIS,the
existing visual setting(i.e.,maritime use with vegetated upland area)would not be significantly altered.
As the proposed action would expand the services of SYC,which is currently developed with an operational marina,the proposed development would make efficient use of
the existing infrastructure (on-site and in the vicinity of the site)and upgrade on-site infrastructure.The proposed development would discontinue the use of existing on-site
wells for potable water and would connect to the public water supply through extension of the water main. The two existing wells near Buildings 1 and 7 would remain for
on-site irrigation use only and the on-site supply wells near Buildings 2 and 3 would be abandoned.This water main extension would give the seven property owners,identified
in Table 12 and discussed in Section 2.2.1 of this DEIS,with the ability to connect to public water but remain served by private wells the opportunity to connect to SCWA and
further decrease the amount of water being withdrawn from the aquifer.The proposed action also includes the replacement of an existing individual on-site sanitary system
with an I/A OWTS,and the installation of one additional I/A OWTS to accommodate all sanitary waste in accordance with SCDHS requirements.As the proposed action would
replace and upgrade an existing conventional septic system with an I/A OWTS and install an additional I/A OWTS,the proposed sanitary system would reduce nitrogen loading
and be more protective of groundwater quality than continuing to utilize the existing conventional septic system.
The proposed development would offer a beneficial use of its coastal location as it would respond to an industry demand for recreational boaters while including appropriate
mitigation measures in the construction and design in consideration of the surrounding residential land uses.The proposed project seeks to expand the business services of
SYC to meet an unmet demand for indoor heated winter storage of yachts on the east end of Long Island.According to the applicant,this investment in additional Yacht storage
would ensure this marina continues to operate for many years to come as a working marina and not succumb to the pressures of transitioning to residential with private
waterfront use,or a hotel,motel or restaurant development which are all permitted by special exception use permit. Furthermore,the proposed action is also consistent with
the 2020 Comprehensive Plan and the underlying intent of the prevailing zoning for the M-II zoning district as analyzed in this section of the DEIS,above.As such,based upon
the above,the proposed action would be consistent with the intent of this policy.
Policy 2 Preserve historic resources of the Town of Southold. There are no known historic or archaeological resources on or adjacent to the subject property that would be adversely impacted by the proposed action. A Phase 1A and
Phase 1B was conducted on the subject property and the NYS OPRHP has issued a determination of no impact upon cultural resources (see Section 3.11.2 and Appendix T of
this DEIS).
Policy 3 Enhance visual quality and protect scenic resources The proposed action would not have a significant adverse impact on the visual quality or scenic resources throughout the Town of Southold.As analyzed in Section 3.4.2 of
throughout the Town of Southold. this DEIS,although the views of the subject property would be altered as a result of the proposed action,they would not be significant as depicted by the photo-simulations,
landscaping plans,and architectural elevations(see Appendices C and Q).Buildings 7 and 8 would effectively screen most of the proposed Buildings 9 and 10 from properties
to the east of the subject property.The proposed Evergreen concrete retaining wall as well as the higher elevation of areas north,west,and south of the proposed action would
also screen much of the views of the proposed Buildings 9 and 10.Although the intent of the proposed retaining wall is for slope stabilization,the proposed evergreens and
vegetation along the retaining wall and six-foot black vinyl fence would also aid in screening the proposed buildings from being visible.
The two proposed buildings would be setback behind existing Buildings 7 and 8 perpendicular to Mattituck Creek such that the length and mass of the proposed buildings
would not be visibly obtrusive to surrounding properties located along Mattituck Creek.Furthermore,the proposed buildings would be constructed with the same material as
the existing buildings(i.e.,blue siding with white trim windows and eaves)such that it would blend with the aesthetics of existing development on-site.As such,the proposed
development would not have an adverse impact on scenic resources including agricultural land, open space and natural resources. Although no formal inventory of scenic
resources has been completed by the Town,per the 2020 Comprehensive Plan,the Town is seeking to strengthen its management of important scenic viewsheds from State
Routes 25,48,and other Town roadways to be identified(page 3 Chapter 5).Accordingly,based upon the above,the proposed action would be consistent with the intent of
this policy.
181
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Coast Policy Descri tion Analysis of Proposed Action
Natural Coast
Policy 4 Minimize loss of life,structures,and natural The FFE of the two proposed boat storage buildings would be at elevation 10 feet AMSL, two feet above the adjacent FEMA floodplain, as required by Chapter 148 (Flood
resources from flooding and erosion. Damage Prevention) of the Town Code,to minimize the loss of life,structures and natural resources from flooding and erosion.Sea level rise projections discussed in Section
2.3.2 would not inundate the subject property and impacts from sea level rise and storm inundation are concentrated at the bulkhead. Additionally, if a 16-inch rise in
groundwater elevation occurred, the drainage infrastructure proposed would be supplemented with shallow drainage structures to accommodate stormwater runoff. As
discussed in Section 2.3.2, if the water table experienced the 0.01-foot rise projected, the groundwater model (see Appendix L) shows no particle deflections or trajectory
changes,and thus,the increased recharge would have no effect on nearby wells.Furthermore,the proposed action would include erosion and sedimentation control measures
to be undertaken prior to and during construction and would include,at minimum,stockpile protection,minimizing the extent and duration of exposed areas,installation of
sediment barriers and sediment traps (silt fencing),and the construction and maintenance of a stabilized construction entrance to prevent soil and loose debris from being
tracked onto local roads. All erosion and sediment control measures would be routinely inspected and maintained such that no sediment would be transported off-site.These
erosion and sedimentation controls would minimize the potential impacts associated with site development and construction activities to ensure proper function. Based on
the above,the proposed action would be consistent with the intent of this policy.
Policy 5 Protect and improve water quality and supply in the As evaluated in Section 2.2.2 of this DEIS,the proposed action includes the replacement of an existing individual on-site sanitary system with an I/A OWTS,and the installation
Town of Southold. of one additional I/A OWTS to accommodate all sanitary waste from the proposed development in accordance with SCDHS requirements.As the proposed action would replace
and upgrade an existing septic system with an I/A OWTS and install an additional I/A OWTS, the proposed sanitary system would reduce nitrogen loading and be more
protective of groundwater quality than continuing to utilize the existing conventional septic system. The proposed action also includes the installation of a stormwater
management system that would contain and recharge stormwater from a two-inch rain event, in accordance with the Town Code. The proposed stormwater management
controls include both structural infiltration (on-site leaching pools) and non-structural methods (pervious gravel).Additionally,the proposed action would discontinue the
use of existing on-site wells for potable water and would connect to the public water supply through extension of the water main.The two existing wells near Buildings 1 and
7 would remain for on-site irrigation use only and the on-site supply wells near Buildings 2 and 3 would be abandoned. The proposed irrigation system would implement
smart irrigation controls to reduce or eliminate the use of the irrigation system during periods of rain. The irrigation system would be installed with a drip line to prevent
evaporation as well as rain sensors so as to not go on while it is raining.The proposed landscaping would consist of native and/or drought-tolerant plants and groundcover to
reduce irrigation needs. Furthermore, as analyzed in Section 2.2.1 of this DEIS, there are no upgradient or downgradient water supply wells in the vicinity of the subject
property.Accordingly,based upon the above,the proposed action would be consistent with the intent of this policy.
Policy 6 Protect and restore the quality and function of the To mitigate the impacts to the forest edge, the Applicant will plant 27,333 SF of native trees, shrubs, and groundcover along the new forest edge. This planted area is
Town of Southold's ecosystem. approximately 20-30 feet wide and will include dense,multi-layered plantings (i.e.,plants that at maturity will occupy understory,and canopy-levels)with abundant conifer
trees (i.e., 86 pitch pine trees) to minimize light penetration into the new forest. After establishment of these natural vegetation areas located landward of the proposed
retaining wall, the total forest area on the property will increase from 11.76±-acres to 12.39±-acres. Additionally, the Applicant will contribute fifty (50) native trees (10-
gallon container typical 1-inch caliper,5-6 feet tall)for installation at high-priority sites with the Town of Southold,as identified by the Town Tree Committee,to enhance and
beautify public grounds.
Furthermore, the proposed action would include erosion and sedimentation control measures to be undertaken prior to and during construction and would include, at
minimum,stockpile protection,minimizing the extent and duration of exposed areas,installation of sediment barriers and sediment traps (silt fencing),and the construction
and maintenance of a stabilized construction entrance to prevent soil and loose debris from being tracked onto local roads. All erosion and sediment control measures would
be routinely inspected and maintained such that no sediment would be transported off-site.These erosion and sedimentation controls would minimize the potential impacts
associated with site development and construction activities to protect the quality and function of the Town's ecosystem. Based on the above,the proposed action would be
consistent with the intent of this policy.
Policy 7 Protect and improve air quality in the Town of As discussed in Section 3.8.2 of this DEIS,the following mitigation measures will be put in place during construction to diminish the impacts from fugitive dust:minimizing the
Southold. exposed area of erodible earth; applying wet suppression to material piles and unpaved areas when there is visible dust; use of covered haul trucks to move construction
material;use of plastic sheet coverings for material piles;and six-foot fence with filter fabric would be installed around the northern and western portions of the Construction
Excavation Area.The Air Quality Report(see Appendix S)concluded that long-term air quality impacts would be inconsequential as the addition of stationary emission sources
is not proposed and vehicular traffic due to the implementation of the proposed action would be minimal. Additionally, the existing CCE FLUPSY units would continue to
operate as part of the proposed action.This program has a beneficial impact on carbon sequestration and therefore improves the water and air quality of the Town of Southold.
As such,the proposed action would be consistent with the intent of this policy.
182
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Coast Policy Description Analysis of Proposed Action
Policy 8 Minimize environmental degradation in the Town of As discussed in Section 1.2.6 of this DEIS,SYC currently utilizes one (1) eight-yard dumpster to accommodate solid waste generated by the current operations.The dumpster
Southold from solid waste and hazardous substances is emptied on a weekly basis by a private carter.All shrink wrap cardboard,and plastic generated by on-site operations are recycled with the Town of Southold.Old batteries
and wastes. and used engine oil in sealed containers are stored on-site,which are then recycled with local companies. As part of the proposed action,all wastes generated on-site would
be handled in the same manner,and no significant change is expected for the additional boat storage.As such,the proposed action would be consistent with the intent of this
policy.
Public Coast
Policy 9 Provide for public access to,and recreational use of, This policy is not applicable to the proposed action as the existing marina is for private membership to utilize the facilities,which would remain as part of the proposed action.
coastal waters,public lands,and public resources of The proposed action would not establish public access to Mattituck Creek.However,the proposed action would respond to an industry demand for local seasonal storage for
the Town of Southold. recreational boaters.The proposed project seeks to expand the business services of SYC to meet an unmet demand for indoor heated winter storage of yachts on the east end
of Long Island.This supports an existing recreational use within the Town.As such,while this policy is not applicable,the proposed action would be consistent with the intent
of this policy.
Working Coast
Policy 10 Protect the Town of Southold's water-dependent The proposed action would expand and enhance an existing maritime and water-dependent use. The proposed development would respond to an industry demand for
uses and promote siting of new water-dependent recreational boaters.The proposed project would expand the business services of SYC to meet an unmet demand for indoor heated winter storage of yachts on the east end of
uses in suitable locations. Long Island.The proposed development is a suitable location for such use as it is an expansion of an existing maritime use,and it is zoned for such use.As such,the proposed
action would be consistent with the intent of this policy.
Policy 11 Promote sustainable use of living marine resources As discussed in Sections 2.1.2 and 2.2.2 of this DEIS,SYC is a designated host for the CCE Marine Program for shellfish restoration and hosts 8 FLUPSY units.The FLUPSY units
in the Town of Southold. at SYC have grown approximately 6 million clams over the last year(and over 10 million in the last four years)and a minimum of approximately 1.5 million clams per year are
expected to be harvested from the FLUPSY units at SYC.Once harvested,the clams are relocated to a NYSDEC-designated sanctuary site pursuant to the LISRP.SYC is committed
to being a FLUPSY host through 2030.These clams aid in the enhancement and restoration of the shellfish fishery within the Town of Southold and subsequently Long Island.
As the proposed action would not result in the disturbance of wetlands, the surrounding marine resources would be maintained in their existing conditions. As such, the
proposed action would be consistent with the intent of the policy.
Policy 12 Protect agricultural lands in the Town of Southold. As shown on Figure 4 in Appendix A of this DEIS,lands identified for agricultural uses by the Town of Southold are located north and west of the subject property.The lands
to the west are located across Wet Mill Road.All impacts from the proposed action would be limited to the subject property and no impact to these lands are anticipated.The
land north of the subject property is identified as agricultural. However,the land is predominately forested and developed with a residential property with no agricultural
uses.This policy is not applicable to the proposed action as no impacts to agricultural lands are anticipated..
Policy 13 Promote appropriate use and development of energy This policy is not applicable to the proposed action as there would be no development of energy or mineral resources.
and mineral resources.
183
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in Table 30 above,the proposed action is consistent with the relevant policy goals of the
Town of Southold LWRP. As such, no significant adverse impacts to coastal resources would be
expected.
Town of Southold Town Code Chapter 275-Wetlands and Shoreline
As discussed in Section 2.2.1,activities within 100 feet of Town-defined wetlands at§275-3(C)(5)are
subject to review by the Town of Southold Town Trustees. All of the proposed development would
occur landward of the existing SYC buildings. Activities within 100-feet of Town wetlands are limited
to the proposed striping to formalize parking stalls in existing gravel-surfaced areas,and the proposed
French drains on the east side of Building 8.As evaluated in Section 2.2.2 of this DEIS,the proposed
action is consistent with the standards for issuance of a Trustees Wetlands Permit set forth at§275-
12.
Mattituck Watershed Management Plan
As indicated in Section 3.1.1 of this DEIS,the Mattituck Watershed Management Plan is part of a larger
study(Long Island Sound,North Fork Study).The Long Island Sound, North Fork Study identifies the
need to protect local groundwater and surface water resources while also noting that excess nitrogen
is a primary factor contributing to water impairment in local marine waters, primarily as a result of
conventional sanitary systems. As explained in Section 3.1.1. of this DEIS, the pilot engineering
assessment done for West Mattituck provides estimates for a larger OWTS designed to handle the
equivalent of 416 residences adjacent to Mattituck Creek on its western banks. While the subject
property is located outside of the boundaries of the proposed sewer service area (see Figure 26 in
Appendix A)and the report only focuses on residential uses,the subject property is situated adjacent
to Mattituck Creek and currently utilizes a septic OWTS. The recommendations of this engineering
assessment relate to the proposed sewer system to reduce nitrogen loading to Mattituck Creek by
providing a system that can reduce the discharge of total nitrogen into the creek.While the proposed
action is a commercial maritime use and not a residential use,the proposed action would replace and
upgrade an existing septic system with an I/A OWTS and install an additional I/A OWTS.The proposed
I/A OWTS would be designed to reduce total nitrogen in treated effluent to a minimum of 19 mg/L in
accordance with SCSC Article 19.As such,the proposed sanitary system would reduce nitrogen loading
and be more protective of groundwater quality than continuing to utilize the existing conventional
septic system. As such, the proposed action would be consistent with the Mattituck Watershed
Management Plan.
NYSDOS Significant Coastal Fish and Wildlife Habitat
As discussed in Sections 2.2.2 and 2.4.2 of this DEIS and in Appendix N, the proposed action would
occur outside of the designated habitat. In support of the maritime habitat of Mattituck Creek, the
proposed action would implement a comprehensive stormwater management program to capture and
recharge all stormwater on-site such that no runoff would overflow into Mattituck Creek or onto
surrounding properties. Additionally, the Applicant is required to abide by the conditions of the
NYSDEC-issued Tidal Wetlands permit which would provide additional protection of the NYSDOS
184
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Significant Coastal Fish and Wildlife Habitat. Based on the foregoing,the proposed action would not
have a significant adverse impact on the adjacent Significant Coastal Fish and Wildlife Habitat.
Suffolk County Sanitary Code
Article 6 of the SCSC - Single-Family Residences, Realty Subdivisions, Developments and Other
Construction Projects
The subject property is located in Groundwater Management Zone IV,which is not characterized as a
deep recharge zone. Pursuant to the regulations contained in Article 6 of the SCSC, the maximum
permitted sanitary discharge for the use of on-site sanitary systems is 600 gpd per acre (i.e.,
approximately 9,498 gpd for the 15.83±-acre developable land area). According to the design flow
factors published in the SCDHS Standards For Approval Of Plans And Construction For Sewage Disposal
Systems For Other Than Single-Family Residences and demonstrated in Section 2.2.2 of this DEIS,post-
development conditions would generate 1,076±gpd of sanitary wastewater and would not exceed the
allowable sanitary flow of 9,498±gpd.
The proposed action includes the installation of two 600-gallon I/A OWTS,one replacing the existing
sanitary system and one new system. Each I/A OWTS would be designed with 5 leaching galleys with
50 percent future expansion. The proposed Sanitary System No. 1 would be installed between
Buildings 9 and 10 with the control panel and blower in Building 10 to treat sewage effluent from the
proposed two buildings.The total design flow for Sanitary System No. 1 is 214±gpd,as demonstrated
in Section 2.2.2 of this DEIS and below.
Design Calculations for Sanitary System No.1 (New S sy temp:
General Industrial:4,910 SFx 0.04gpd/SF(density load)=196gpd
New Boat Storage:101,500 SFx 0.00 gpd/SF(density load)=0 gpd
Non-storage(bathrooms):304 SFx 0.06gpd/SF(density load)=18gpd
Total Design Flowfor System No.1:214±gpd
The proposed Sanitary System No. 2 would be a replacement of the existing subsurface septic system
and installed to the south of Building 3 with the control panel and blower housed in this building. The
total design flow for Sanitary System No.2 is 562±gpd,as demonstrated in Section 2.2.2 of this DEIS and
below.
Design Calculations for Sanitary System No.2(Replacement S sy tem):
Office:2,702 SFx 0.06gpd/SF(density load)=162 gpd
Marina:40 boat slips x 10gpd/boat slip(density load)=400gpd
Total Design Calculations System No.2:562±gpd
Overall, the total flow for the proposed action would be 776± gpd. As the existing single-family
residence sanitary system with an existing design flow of 300± gpd would remain upon
implementation of the proposed action,the total design flow for post-development conditions would
be 1,076± gpd. As described in Section 2.2.2 of this DEIS, an application to the SCDHS and Board of
Review for approval of the proposed design flow has been filed(see Appendix J). Additionally,as part
185
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
of this action,the Applicant would file a restrictive covenant with the SCDHS to reduce the design flow
for the M-II zoned parcel.
As noted on the Utility Plan (see Appendix C)and summarized in Table 15 in Section 2.2.2 of this DEIS,
the setbacks for the proposed I/A OWTS would comply with the minimum horizontal and vertical
separation distances as set forth in Article 6 of the SCSC.Furthermore,the proposed I/A OWTS would
be designed to reduce total nitrogen in treated effluent to a minimum of 19 mg/L,in accordance with
Section 760-1907D.2 in Article 19 of the SCSC.
Article 7-Water Pollution Control
As indicated in Section 2.2.1 of this DEIS, the subject property is not located in a regulated deep
recharge area and is not located within an area that is 1,500 feet upgradient or 500 feet downgradient
of a public supply well that screens in Upper Glacial aquifer, or other water supply sensitive area.As
such,the proposed action is not subject to Article 7 restrictions.
Article 12 of the SCSC-Toxic and Hazardous Materials Storage and Handling Controls
As discussed in Section 2.2.1 of this DEIS, SCDHS issued an Article 12 permit to SYC on September 1,
2017 for the existing toxic and hazardous materials storage. The current permit expires on August 22,
2022. As discussed in Section 2.2.2 and further discussed in Section 3.2.2 of this DEIS,the proposed
action would not require SYC to modify the total volume to be stored as the current volume of
chemicals is sufficient to service the yachts to be stored in Buildings 9 and 10.It is noted that SYC staff
receives training and certification to adequately handle and operate the materials associated with the
existing marina operation.
3.1.3 Proposed Mitigation
Based on the above analyses,the proposed action is not expected to result in any significant adverse impacts
to land use or zoning.Additionally,the proposed action is consistent with the relevant community plans and
studies. The proposed action has incorporated the following design elements that effectively mitigate any
potential adverse impacts:
• The setback from the edge of disturbance to Mill Road Preserve would be vegetated and is 105
feet to increase the distance between the most southern trail in the Mill Road Preserve and the
proposed action as well as maintain the existing wooded appearance of the surrounding area.
• The upland landscaped area will create a multi-layer screen for edge protection and visual
enhancement to screen the proposed buildings from surrounding views to the south.
• To mitigate for the loss of forest trees associated with the project,a total of 135 trees would be
replanted, including 86 pitch pine trees (minimum 4-5 feet height) to be planted along the
western and southern edges of the proposed development. In addition, the Applicant will
contribute 50 native trees (10-gallon container typical 1-inch caliper, 5-6 feet tall) for
installation at high-priority sites with the Town of Southold, as identified by the Town Tree
Committee,to enhance and beautify public grounds.
186
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• The landscaping proposed for the proposed action (51.4 percent), inclusive of the Evergreen
concrete retaining wall,would exceed the minimum requirement of 20 percent,pursuant to bulk
and dimensional requirements within the M-II zoning district.
• The proposed Evergreen concrete retaining wall is designed to become a green wall that will
blend with the landscape to soften views.
• The area surrounding the two proposed storage buildings would be screened by the proposed
Evergreen concrete retaining wall and the existing forested areas to be retained on the subject
property.
• The proposed design provides for greater side and rear yard setbacks than what is required
(Required Side,Both Side,and Rear Yards: 25 feet, 50 feet combined,and 25 feet,respectively;
Proposed: 28 feet,77.7 feet,and 91.3 feet).
3.2 Human Health
3.2.1 Existing Conditions
Toxic and Hazardous Materials Stored at SYC
As presented in Section 2.2.1 of this DEIS and further discussed in Section 2.2.2 of this DEIS,the existing
services provided by SYC to customers includes full yacht system maintenance, repair, and custom
fabrication. In support of these services, SYC stores, handles, and disposes of toxic and hazardous
materials such as antifouling paint,batteries,engine oil,and other chemicals on site in compliance with
prevailing local,county,state,and federal requirements.
The Amended Final Scope adopted April 5, 2021 by the Planning Board requires an analysis of
chemicals stored at SYC and their consistency with NYSDEC regulations. This section sets forth a
general background for toxic and hazardous materials stored on-site and prevailing regulations,
followed by an impact assessment in Section 3.2.2.
Chemical Storage at SYC
As indicated in Section 2.2.1 of this DEIS, SYC stores chemicals and products for boat repair,
maintenance and detailing(see Table 13 in Section 2.2.1 of this DEIS).
Boat Painting/Antifouling
As part of the maintenance and repair services provided by SYC,commercial-grade aquatic antifouling
paint is used on the yachts and boats. Aquatic antifouling paints are defined as "pesticide products
used on vessel hulls, boat bottoms, structures and other marine surfaces to inhibit the growth of
aquatic organisms."so
sObttps://www.dec,n ov permJts/41072.ht 1
187
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Battery and Engine Oil Storage
The maintenance and repair operations at SYC requires the storage of batteries and engine oil.
Batteries and engine oil are stored in Building 3. As discussed in Section 1.2.6 of this DEIS, batteries
and engine oil are disposed of through contract with a local company. The types and maximum
quantities stored are included in Table 13 in Section 2.2.1 of this DEIS.
Aboveground Storage Tanks
There are four operational AST's at SYC that service Buildings 2 through 8 and the operations within.
A description of the on-site tanks follows.
1. AST Tank#6: 2,000 Gallon/Gasoline (north side of Building 3)
2. AST Tank#7: 6,000 Gallon/Diesel Fuel(north side of Building 3)
3. AST Tank#8: 275 Gallon/No.2 Fuel Oil (Heating) (inside Building 2 on the eastern side
of building)
4. AST Tank#9: 275 Gallon/No.2 Fuel Oil (Heating) (inside Building 2 on the eastern side
of building)
5. AST Tank#10 275 Gallon/No.2 Fuel(Heating) (inside Building 3 on the northern side of
building) (not in use)
Regulatory Requirements for Storage of Toxic and Hazardous Materials
SCSC Article 12-Toxic and Hazardous Materials Storage and Handling Controls
As presented in Section 2.2.1, SYC maintains an Article 12 Permit from SCDHS Division of
Environmental Quality- Office of Pollution Control dated September 1, 2017 for the storage of the
aforementioned hazardous materials in Table 13 at the subject property(see Appendix J).The permit
is active through August 31, 2022. The SYC staff receives training and certification to adequately
handle and operate the materials associated with the existing marina operation.
NYCRR Part 325 and Environmental Conservation Law(ECL)Article 33 Pesticides
Pursuant to NYCRR Part 325 and Environmental Conservation Law(ECL)Article 33 Pesticides, SYC is
a registered Pesticide Business with the NYSDEC Division of Materials Management, Bureau of Pest
Management as it provides commercial aquatic antifouling paint application services for yacht and
boat customers. SYC received a registration certificate from the NYSDEC on February 19, 2020
certifying it as a Pesticide Business under Category 5D -Aquatic Antifouling (see Appendix M). This
registration is valid through December 31,2022.
Under§33-0922.3 a certified aquatic antifouling business must adhere to standards set forth by the
NYSDEC Commissioner specific to the antifouling paint use at the intended location as well as the
following additional standards:
188
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Employ at least one person who is a certified commercial pesticide applicator or
technician certified in the application of aquatic antifouling paint or an aquatic antifouling
paint applicator at each location required to be registered;or
• Have entered into a contract with another registered business that employs a person who
is a certified commercial pesticide applicator or technician certified in the application of
aquatic antifouling paint or an aquatic antifouling paint applicator, pursuant to which
contract such registered business has agreed to apply aquatic antifouling paint at each
such location for such applicant.
Pursuant to §325.18 - Certification Training Course Requirements for Commercial Technicians and
Courses Designed for Recertification of Commercial and Private Applicators, personnel applying for
commercial technical certification or commercial or private application recertification must complete
30 hours of equivalent training in the following concentration areas:
• Integrated pest management principles and practices;
• Label and labeling comprehension;
• Safety;
• Environment;
• Pests;
• Pesticides;
• Equipment;
• Application techniques;and
• Laws and regulations.
Pursuant to §§33-0921.4 and 33-0921.5, SYC staff responsible for handling and applying antifouling
paint must maintain their certifications in three-year cycles and complete the required five hours of
coursework for recertification as outlined in§33-0921.6.4 to this Part.SYC staff currently abide by this
regulation.
Surrounding Wells
As presented in Section 2.2.2 of this DEIS, a numerical 3-D groundwater modeling report and
assessment has been prepared by PWGC (see Appendix L). The nearby local domestic supply wells
were identified, and an analysis was conducted of the potential impacts on any wellhead zone of
influence, as well as on the quantity and quality of water in the aquifer system for residential water
supply.Wellhead zone of influence is evaluated using particle tracking. The particle tracking analysis
indicates the domestic supply wells, having relatively low pumping rates (325 gpd), are expected to
have very narrow zones of influence. The model was run for post-development conditions and is
discussed below in Section 3.2.2 of this DEIS.
189
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.2.2 Potential Impacts
Proposed LPG Tanks
Four 2,000-gallon LPG tanks are proposed to support the proposed radiant heat for the two boat
storage buildings.As discussed in Section 2.2.2 of this DEIS,the LPG tanks are subject to the 2020 NYS
Fire Code and the National Fire Protection Association 58-Liquified Petroleum Gas Code,which sets
forth requirements for installation, setbacks, and protection from vehicle impact (see Southold Fire
Marshal correspondence in Appendix P). The proposed fire plan would comply with these two codes.
Additionally, at the recommendation of the Southold Fire Marshal, a Fire Safety Plan has been
developed by SYC to provide hazard locations, utility and water supply information, and emergency
procedures for its employees. A copy of this Fire Safety Plan is included in Appendix P. Furthermore,
as evaluated in Section 3.9.2 of this DEIS, the proposed plan was submitted to the Mattituck Fire
Department and no potential service issues were identified. As stated in the correspondence from the
Chief of the department(see Appendix P),the local department is fully capable of servicing SYC with
the proposed improvements.
Toxic and Hazardous Materials Stored at SYC
Chemical Storage at SYC
The proposed action would not require SYC to modify its current quantities of chemicals stored on-
site nor require additional chemicals be stored on-site.
Boat Painting/Antifouling
The proposed action would not require SYC to modify its current quantities of antifouling paint stored
on-site as painting services would not be offered to customers storing yachts in Buildings 9 and 10.
Battery and Engine Oil Storage
The proposed action would not require SYC to modify its current quantities of antifouling paint stored
on-site as painting services would not be offered to customers storing yachts in Buildings 9 and 10.
Regulatory Requirements for Storage of Toxic and Hazardous Materials
SCSC Article 12-Toxic and Hazardous Materials Storage and Handling Controls
As the proposed action includes the seasonal storage of yachts, modifying the quantity and type of
chemicals stored at SYC is not anticipated. The current Article 12 permit issued by SCDHS on
September 1, 2017 would not be adjusted. SYC would maintain its current Article 12 permit and
recertify in August 2022 when the existing permit expires.
190
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
NYCRR Part 325 and Environmental Conservation Law(ECL)Article 33 Pesticides
SYC would continue to maintain its Pesticide Business certification under Category 5D - Aquatic
Antifouling to support the existing and future maintenance and repairs of yachts and boats of clients
as aquatic antifouling paint would continue to be used. SYC staff responsible for handling and applying
antifouling paint would maintain their certifications pursuant to this Part. The storage, application,
and disposal of aquatic antifouling paint under the proposed action would be consistent with the
prevailing requirements of the certification.
Overall,the proposed action would not introduce new or additional volumes of toxic and hazardous
materials at the subject property
Impacts to Surrounding Wells
As discussed in Section 2.2.2 of this DEIS, with the projected increase in stormwater recharge, the
proposed action would result in a slight increase in the water table of 0.01 feet immediately beneath
the Project Area. The model shows no particle deflections or trajectory changes,and thus, no effects
on nearby wells are anticipated. Additionally, the particle tracking analysis completed in the
Groundwater Modeling Report(see Appendix L)indicated the domestic supply wells,having relatively
low pumping rates (325 gpd) have, as expected, very narrow zones of influence. When comparing
existing to post-development conditions,there are no noticeable changes in particle track trajectories.
This is due to the fact that the proposed site excavation would take place entirely above the water table
and the proposed site modifications are only slightly adding more water to the local aquifer system
due to the increased recharge post construction. As such,the proposed site excavation would not have
any impact hydraulically on the nearby surrounding domestic supply wellhead zones of influence.
Therefore, the proposed action would not have an adverse impact on groundwater quantity nor the
surrounding local domestic supply wells.
3.2.3 Proposed Mitigation
The following measures have been incorporated into the proposed action such that there would be no
significant adverse impacts to human health:
• The setbacks for the LPG tanks would be compliant with the 2020 NYS Fire Code and the National
Fire Protection Association 59 - Liquified Petroleum Gas Code and would be surrounded by
concrete retaining walls.
• SYC would continue to ensure certified staff implement appropriate handling and storage protocol
for chemicals stored on site consistent with the Article 12 permit and Pesticide Business under
Category 5D-Aquatic Antifouling requirements.
• A Fire Safety Plan has been developed by SYC,which provides hazard locations,utility and water
supply information,and emergency procedures for its employees.
191
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.3 Transportation
3.3.1 Existing Conditions
Introduction
The transportation analyses presented in Section 3.3 of this DEIS is a summary of the TIS prepared by
Dunn Engineering Associates, last revised October 2022. The revised TIS updates accident data to the
latest three-year period ending on December 31, 2021,revises the project completion Build analysis to
summer 2025, revises the construction Build analysis to spring 2024 and summer 2024,and provides
additional information and analyses as requested by the Town of Southold and its consultants in
correspondence dated May 9, 2022 and May 6, 2022, respectively.Also,an alternative routing plan for
the excavation phase has been presented and evaluated, as well as an alternative material mitigation
plan to reduce a percentage of off-site material removal. Both of these alternatives are discussed in
Section 5.0 of this DEIS. The TIS can be found in its entirety in Appendix 0 of this DEIS.
Location
The SYC site is located on the west side of Mattituck Inlet at the eastern terminus of West Mill Road.The
site is bounded on the east by the Mattituck Inlet and west and north by West Mill Road and private
properties. On the south the site is bounded by Town of Southold Parkland and private properties.
Currently, the site has no access to the adjacent highway system other than from eastern terminus of
West Mill Road.The site is located within the hamlet of Mattituck,Town of Southold,New York.Figure 3
(Site Map)in the TIS illustrates the boundaries of the property and the adjacent roadway network.
Methodology
As part of the preparation of this TIS,the following tasks were undertaken:
• Several personal, on-site field observations were made to observe the traffic movements under
various conditions.
• Collection and analysis of current existing traffic data,including traffic volumes and signal timings,
as available from the Town of Southold,the Suffolk County Department of Public Works,and the
New York State Department of Transportation(NYSDOT).
• Automatic Traffic Recorder(ATR) Counts at key locations on West Mill Road, Cox Neck Road and
North Road (CR 48). At the request of the Town of Southold Planning Board the ATRs were
conducted during the individual seasons of the year. The ATRs also included vehicle classification
studies. The counts were collected over a seven-day period to include Saturday and Sunday data.
• Supplementary intersection turning movement counts were collected at two key intersections to
determine intersection capacity. The turning movement counts were collected during the
weekday morning peak hours of 7:00 am to 9:00 am and pm peak hours of 4:00 pro to 6:00 pm.
The intersection turning movement counts also collected data on pedestrian traffic in the
192
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
intersection and truck and bus data also. &s with the A7Bs the turning movement counts were
collected seasonally.Intersection turning movement counts were collected at the intersections of:
a) Cox Neck Road at West Mill Road/Breakwater Road
b) North Road(CK48)at Cox Neck Road
c) Eastbound North Road(CK48)at Northbound North Road
d) West Mill Road at8a}nimvvAvmoum/Smla6Lane
* An examination was made of the traffic flow on West Mill Road, Cox Neck Road and North Road
(C848)in the vicinity o[the site.
* Recent accident records obtained from NYSDOT were coviuvvmd to dotocnnioo if any accident
problems exist iu the vicinity o[the site.
* Atzip goumcahou analysis was performed to determine the additional traffic attributable to the
proposed project once complete and fully operational. In addition,a trip generation analysis was
also performed to determine the additional traffic that would be generated due to the construction
of the new storage buildings with particular emphasis on the numbers of trucks need to facilitate
the project.
* A directional distribution analysis was performed to distribute both the completed project related
site-generated traffic and the construction related traffic onto the surrounding street network.
* A trip assignment analysis was performed determine traffic volumes that would result from the
increase of site-generated traffic related to the completed project being added to existing traffic to
dmtocnoium the impact of the proposed development on the surrounding street system. A trip
assignment analysis was also performed to nxaruiun the addition of site-generated construction
traffic to existing traffic to determine the impact of the proposed development on the surrounding
street system
* Capacity analyses were performed at key study intersections as listed in Item 4 above,to examine
their ability tu accommodate both the existing traffic volume and the additional site-generated
traffic once the project is complete and the construction related traffic while the project isbeing
developed.
° Arevievv uf the access arrangements was made. The review include access during construction
and once the project iscomplete
* An evaluation of the available parking and on-site circulation was made regarding traffic
circulation,safety,maintenance,and adequacy uflayout.
~ Conclusions were made regarding the traffic impact of the development on the surrounding street
network based un the data and facts gathered iu the T\S.
~ As a result of comments received from the Town and its consultants, additional data was collected
during August o[2O22. This data included:
193
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Intersection turning movement counts at the intersections of Cox Neck Road at Bergen
Avenue,and Sound Avenue at Bergen Avenue for the evaluation of an alternative routing plan
for the excavation phase of the proposed project.
• Pedestrian and bicycle counts were taken from 6:00 AM to 6:00 PM during a weekday on Cox
Neck Road at Westphalia Road, West Mill Road at Bayview Drive/Selah Lane, Cox Neck
Road/West Mill Road at Breakwater Road,and Bergen Avenue at Cooper's Road.
• ATR counts were taken at the northerly terminus of West Mill Road at the entrance/exit to
Strong's Yacht Center and on Bergen Avenue between Sound Avenue and Cox Neck Road.
• Accident Records were updated to include all of 2021 from the NYSDOT. The accident
request was made for the latest three-year period ending December 31, 2021. Accident
records were also requested and received from the Town of Southold Police Department.
• An AUTO-TURN analysis was conducted to determine the viability of the proposed trucking route
accommodate trucks that will haul material from the site to facilitate the building of the project. AUTO-
TURN analysis was conducted at the following locations.
• The 90-degree turn in West Mill Road near the Strong's entrance.
• The S-curve along West Mill Road/Cox Neck Road near Breakwater Road.
• Turning movements at Sound Avenue at Cox Neck Road.
• Turning movements at Sound Avenue at Northville Turnpike.
• Turning movements at Northville Turnpike at County Road 58
• Turning movements at Sound Avenue at Bergen Avenue.
• Turning movements at Cox Neck Road at Bergen Avenue.
• An alternative routing plan,alternative material mitigation plan and the barging alternative have been
evaluated(see Section 5.0 of this DEIS).
• The pavement analysis,which included ESAL calculations,as prepared by TSPE was evaluated.
• The vibration analysis performed by SoundSense has been reviewed and summarized.
Existing Roadway Network
Roadway Characteristics
As shown in Figure 3 (Site Map) in the TIS, SYC is located at the easterly terminus of West Mill Road.
West Mill Road to the south and west becomes Cox Neck Road in the vicinity of Breakwater Road and
continues south until its intersection with Sound Avenue and North Road(County Road 48). According
to the NYSDOT Highway Classification Map, Cox Neck Road/West Mill Road is classified as a "Minor
Arterial."
Cox Neck Road,at its southerly terminus,intersects Sound Avenue and North Road. Sound Avenue is
an east/west Town of Southold roadway. Sound Avenue begins in the Town of Riverhead at New York
State Route 25A and runs easterly until it intersects Route 25 in Mattituck east of the project site.The
194
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
southerly leg of Sound Avenue from its intersection with Cox Neck Road runs southeast to intersect
with New York State Route 25. East of Cox Neck Road is North Road (CR 48) a four-lane divided
highway.North Road(CR 48),to the east of Cox Neck Road,and Sound Avenue,west of Cox Neck Road,
are classified as"Principal Arterial (other)."Sound Avenue/North Road are also designated as part of
the National Highway System and Federal Aid Primary System.
New York State Route 25 is a two-lane east/west State roadway which parallels Sound Avenue/North
Road. Route 25 begins in New York City and terminates at Orient Point at the eastern tip of the Town
of Southold. Route 25 is designated as "Minor Arterial" within the Town of Southold except that
portion east of Greenport. Route 25, except east of Greenport is also not designated as part of the
National Highway System nor as part of the Federal Aid Primary System.
Sound Avenue and North Road(County 48)and Route 25 are the principal roadways serving the North
Fork of Long Island and the Town of Southold in particular.After its intersection with North Road at
Cox Neck Road and North Road (CR 48) Sound Avenue continues southeast to connect to Route 25.
Once SYC traffic reaches the intersection of Cox Neck Road with Sound Avenue/North Road its traffic
can readily be distributed by the traffic signal at its intersection with Sound Avenue and North Road in
all directions onto the primary east/west roadways.
Cox Neck Road/West Mill Road between North Road and SYC is a two-lane road with one lane in each
direction. The roadway is under the jurisdiction of the Town of Southold. Except for the commercial
properties adjacent to North Road and Sound Avenue on the south, and SYC and the Mattituck
Commercial Dock at its northerly terminus, the roadway is lined with rural residential and farming
land uses. Twelve commercial fishing boats and the Celtic Quest Party Boat operate from the
commercial docks north of Strong's, whose only access is via West Mill Road. In addition to the
commercial dock and SYC there is the former Old Mill Restaurant,which is currently vacant but under
the process of being renovated for reopening
Several residential subdivision roadways feed into Cox Neck Road. Breakwater Road intersects the
roadway midway between North Road and Mattituck Creek and serves a large residential subdivision
to the west and north. It also serves as access for the Mattituck Park District at the end of Breakwater
Road and the Mattituck Creek Waterway Access off Naugles Drive.
Cox Neck Road/West Mill Road is marked with a double barrier line separating opposing directions of
traffic. A 35-mph speed limit is posted along the length of the combined roadway. The roadway varies
in width. It is widest as it approaches North Road at 32± feet and then narrowing to generally 26 to
27 feet Smaller portions narrow to 24±feet and east of Naugles Drive the roadway becomes 22±feet
wide. Other than the speed limit signing there is little traffic control signing along Cox's Neck
Road/West Mill Road.
Much of the Cox Neck Road/West Mill Road is slightly rolling but there are two areas of significant
curves.The first is just north of Bergen Avenue where,going north,the roadway curves sharply to the
east turning about 900and then turns less sharply to the north.Within the curves the road drops to the
area between the curves just west of Breakwater Road and then rises in the second curve to peak north
of Jackson Landing and the end of the curved section. No warning signs are posted for either north
195
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
bound south bound traffic. Ou the westerly side of the southern curve guide rail has been placed to
prevent vehicles from leaving the road. The guide rail is substandard and not properly anchored on
the ends.We question whether the two curves should be posted with curve warning signs indicating
the"S"curvature of the road and the use of additional chevron signing along the back of both curves.
North of the two curves the roadway straightens out and continues north in a relatively straight line
on gently rolling terrain. West and south of Naugle's Drive the roadway turns fairly sharply to the east.
Curve warning signs were posted for northbound traffic approaching the curve and for southbound
traffic approaching the same curve. The southbound signs seem to be placed too close to the curve and
chevron warning signs along the back of the curve would be useful.To the east of Naugle's Drive West
Mill Road turns to the south and drops vertically. There ioa curve warning sign posted for eastbound
traffic and au additional sign stating, "SLOW POPULATED&8EA^ That sign is posted behind autility
pole and not readily visible.
Si
analized Intersections
In the vicinity of the site,the following are the significant signalized intersections:
° Sound Avenue/North Road(CR48)atCox Neck Road
* North Road(CR48)at Northwest bound Sound Avenue
The lane configurations at the signalized iutocomcbou approaches of Sound Avenue/North Road (CD
48)atCox Neck Road consist uf the following:
1. Eastbound Sound Avenue: A left turn lane,ad6cu lane and a right turn lane.
2. Westbound North Road(CR48): A left turn lane,ad6cu lane and acbaouolizedright
turu|aoe.
3. 8uudhbuund Cox Neck Road: A combined lmft/t6cu lane and ac6aoomlizmdright
turulaum.
The lane configurations at the signalized intersection approaches of North Road (CR 48) at Cox Neck
Road consist u[the following:
1. Eastbound North Road(CB48): Athrulaum.
2. Northbound Sound Avenue: A left turn lane and acbauumlizmd right turn lane.
It is noted that the two signalized intersections are operated by the same traffic signal controller,and
thus,function as one signalized intersection.
Unsignalized Intersections
In the vicinity of the site,the following are the significant unsignalized intersections:
196
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
* West Mill Road atBayvovvAvouuo/Sola6Lane
* Cox Neck Road/West Mill Road at Breakwater Road
It is noted that,for the alternative routing plan,the following additional intersections were evaluated:
° Cox Neck Road at Bergen Avenue
° Sound Avenue at Bergen Avenue
The lane configurations at the uoyigoa|ized iotocsmcduo approaches of West K48l Road at 8ayvimvv
Avmuum/Smlak Lane consist o[the following:
1. Souh6bouud West Mill Road: A combined lo8/d6cu/cig6tlane.
2. Northbound West Mill Road: A combined lo8/thcu/cig6tlane.
3. Eastbound Smla6Lane: A combined left/d6cu/cightlane.
4. Westbound OayvimvvAvenue: A combined lmD/dzcu/rig6tlane.
The lane configurations at the unsignalized intersection approaches of Cox Neck Road/West Mill Road
at Breakwater Road consist o[the following:
1. Eastbound Cox Neck Road: A combined d6cu/cig6tlane.
2. Westbound West Mill Road: A combined lnft/t6culane.
3. Soudzbouud Breakwater Road: A combined left/right lane
The lane configurations at the uuuiguaUzed intersection approaches of Cox Nock Road at Bergen
Avenue consist of the following:
1. Sout6bouod Cox Neck Road: A combined t6ru/rigbtlane.
2. Northbound Cox Neck Road: A combined ioM/t6rulane.
3. Eastbound Bergen Avenue: A combined left/right lane
The lane configurations at the unsignalized intersection approaches of Sound Avenue at Bergen Road
consist uf the following:
1. Eastbound Sound Avenue: A combined thru/rightlane.
2. Westbound Sound Avenue: A combined|oft/thrulane.
197
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
3. 8oudbbouud Bergen Avenue: A combined left/right lane
Existing Traffic Flow Conditions
Traffl:c Volumes
Agency Counts Data
Traffic volume counts were available for Cox Neck Road on the NYSDOT Traffic Data Viewer website
.The counts were collected io June of2U20,92 feet south of Rosewood Road
and the yognnoot of road had an Annual Average Daily Traffic (AAD?) of2'963 vehicles per day. The
average weekday peak hour of traffic occurred between 5:00 pm and 6:00 pm with a combined volume
of264 vehicles per hour. The combined volume varied between 215 and 264 vehicles per hour from
11:00 aroto 7:00 pm. Soutbbouod traffic was higher iuthe morning and early afternoon then
northbound until 1:00 pm and then the trend reversed with more traffic northbound then southbound
after that.
Traffic count data was also available for Breakwater Road which feed a considerable amount of traffic
into Cox Neck Road/West Mill Road. The count was taken io August 2015. 63O feet south ofStanley
Road and recorded an AADI o[ 1'447 vehicles per day and indicates that Breakwater Road feeds
approximately half of the traffic appearing on Cox Neck Road to the south. The count location on
8cmakm/atmc Road also included a speed study. The study indicated that vehicles upmrado# on
Breakwater Road at the survey site had an 85-percentile speed of between 42.9 and 43.9 mph while
the posted speed limit was 38mph. A1 the survey location Breakwater Road ic relatively straight and
flat as are much u[Cox Neck Road and West Mill Road and it can be anticipated that speeds of this road
would be similar to those on Breakwater Road except in the areas of the curves where horizontal and
vertical geometric features will suppress speed.
In addition to the volume counts noted the State operates a permanent count station on Route 25 east
of Aldrich Lane io the hamlet o[Laurel. The permanent count station generates traffic volume trend
data for Route 25 in the Town of Southold and Riverhead east of the Riverhead business district. The
latest available data from the count station dates to 2013. It shows that the highest volumes occur in
July and August. The highest daily traffic occurs ou Friday with Saturday and Thursday being close
seconds. The counts indicated little traffic growth between 2004aod 2013. The data from the
permanent count station is included iu the Appendix u[this report iothe section entitled, "Agency
Traffic Data."
Additional historic data has been incorporated into the TIS to cover Sound Avenue between Cox Neck
Road and Northville Turnpike,Northville Turnpike between Sound Avenue and Old Country Road(CR
43),and Old Country Road(CR 58),between the Long Island Expressway and Northville Turnpike.The
data was received from the NYSDOT and included weekday ATR volume and classification counts. The
additional data is included io the Supplemental Data Appendix uf the?|S.
198
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
It should be noted that the above AADT and the traffic volume count data were not utilized for analysis
purposes but were used to define peak periods of highway traffic and are presented for informational
purposes.
/r��ct Count Data
As requested by the Anomodmd Final Scope additional counts were collected for the project. As the
Amended Final Scope requested,traffic data was collected in each of the four seasons of the year. The
A?8 counts were collected on West Mill Road north of8ayrimwAvenue, on Cox Neck Road north of
Westphalia Road,on Sound Avenue west of Cox Neck Road and on North Road(CR 48)east of Cox Neck
Road. The ATR data collection also included a vehicle classification study at each location. Itionoted
that additional ATR's were collected on West Mill Road east of Naugles Drive and on Bergen Avenue
during August2U22.
To obtain specific turning count information for existing traffic during the peak hours of the proposed
development,manual turning movement counts were collected at the following four locations:
° Sound Avenue/North Road(CR48)atCox Neck Road
* North Road(CK48)at Northwest bound Sound Avenue
° West Mill Road at8ayvmvvAvmuum/Sm|a6Lane
* Cox Neck Road/West Mill Road at Breakwater Road
The turning traffic counts at the locations were collected on several during the winter of 202 1,spring
uf2021'the summer u[20Z1 and the fall uf 2021.The counts were collected during a typical weekday
A08 peak period from 7:00aootu9:O8 am,a typical weekday poo peak period of4:88 pm.tu6:0Opm,
and a Saturday peak period u[11:00 am.tu2:0Opm. Additional turning movement counts were taken
in August 2022 at the intersections of Cox Neck Road at Bergen Avenue and Sound Avenue at Bergen
Avenue during the same data collection periods.
Figure 4 (2021 Existing Traffic Counts) in the IIS illustrates the locations of the counts collected for
this Study.
As indicated above,the Amended Final Scope required traffic data be collected during the"four seasons
of the yoac" Initial data collection was taken in March of 2021 to cover the winter data yet This
included the ATR'y as described above and turning oouveooeot counts at the two signalized
iutocyecduus of North Road (C& 48) with Sound Avenue and Cox Neck Road. Fu|luvviug additional
Amended Final Scope clarification two additional turning movement counts were added tothe data
cuUecbuu effort. Those intersection turning movement counts were at West Mill Road at 8ayjevv
Aveuue/Selab Lane and Cox Neck Road/West Mill Road at Breakwater Road.
Figure 5(Weekday Average Hourly Volume-Seasonal Comparison,County Road 48)in the TIS shows
the variation of hourly traffic count data on Sound Avenue/North Road(CR 48)from season to season.
The pattern from season to season is as expected with the highest volumes during the summer and the
lowest io the winter;with the fall and spring being iubetween.Figures 6 and 7iu the TiS shows similar
information for Cox Neck Road and West Mill Road. While the summer counts are demonstrably higher
199
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
than the winter counts with the spring and fall counts being roughly in between,there is considerably
more variation in the count data. This is likely to happen where the count volume is low, and small
increases or decreases in traffic dramatically affect the trends. When reviewing Figures 5, 6, and 7,
note that the smoothness of the graph and traffic data supporting it is far more even on the higher
volume SouodAvmouo/Nortb Road, tboo on the lower volume Cox Neck Road and then the lowest
volume West Mill Road.
Additional traffic volume data plots for Saturday and for Sunday atall tbcmm count locations, Sound
Avenue, Cox Neck Road,and West Mill Road,are provided in the Supplemental Data Appendix of the
IIS. Based on the data,the winter counts showed the lowest volumes and the summer the highest on
both days. The spring volumes were higher than the fall volumes. The volume plots for all three
locations on Saturday and Sunday show considerable variation. The volume trends indicate a ciym
beginning between 6:00 AM and 7:00 AM rising throughout the onocuiug and generally peaking in
midday. Volumes remain high through the afternoon but taper more gradually into the evening.
Plots of the weekday directional volumes at the d6coo count locations indicate that Sound
Avenue/North Road uxpmdmucms traffic flows that are often typical of roadways with significant
commuter and worker traffic. The predominant traffic flow is east bound during the morning peak
hour and west bound io the evening peak hours. Peak hour flows ou Saturday afternoons are higher
than the weekday AM and PK0 peak hours o[traffic. The counts taken uo Cox Neck Road and West Mill
Road did not exhibit the weekday AM and PM peak hours typical of commuter routes. The volumes u[
traffic on Cox Neck Road where 6ig6nc during the Saturday afternoon peak hour then during the
weekday peaks but were less so on West Mill Road.This was consistent through all seasons. Gcnp6y
which show the seasonal variation of traffic ou Sound Avenue, Cox Neck Road and West Mill Road for
Saturday and Sunday are provided in the Supplemental Data Appendix of the TIS.
As can be expected' the seasonal data indicated that there were significantly lower traffic vu|unoos
during the winter period then during the spring and baU' with the highest volumes being recorded
during the summer period. There was also considerable difference in the volume of traffic found on
SuuudAveuue/Nurtk Road as opposed to Cox Neck Road and West Mill Road. During the summer
studies' Sound Avenue experienced volumes in the range uy1fiOUO vehicles per day during the
weekdays to 20,000 vehicles on a summer Saturday.On Cox Neck Road,weekday volumes were as low
as2'6OO vehicles per day tua high u[3'34O vehicles ouo summer Saturday. Finally,un West Mill Road,
volumes were SOO or slightly lower vehicles per day throughout the week. The volume counts
conducted during the other seasons followed a similar profile although lower,with the lowest volumes
being found during the winter months.
Vehicle Classification Data
The vehicle classification counts indicated that heavy vehicles (trucks) as a percentage of the traffic
observed exceeded S percent of the traffic on Sound Avenue/North Quad during the summer,
increasing to over 6 percent in the spring and fall,and dropping to between 4 and 5 percent during the
winter months.Buses represented approximately one percent of traffic on the road during all seasons.
During the weekdays in the non-summer seasons,buses (most likely school buses) also represented
one percent of the traffic on Cox Nock Road and West K4iU Road. During the vvookond' buses were
200
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
generally not present ou these roads. The pcmyoncm of trucks on Cox Neck Road was noted with
between 3.6 and 94 percent ou weekdays, varying seasonally. During the winter, the percentage of
trucks reduced to approximately 3.6percent. Truck usage of West Mill Road was varied from 1.5to
7.9 percent for the four seasons,also varying seasonally. During the winter the percentage oftrucks
reduced to 1.5 percent weekdays and less than 2 percent on weekends during the summer. During the
winter,,truck usage of West Mill Road was one percent or less during weekdays and weekends. The
analysis of the classification data from West Mill Road also indicated that the trucks using the road
were smaller than those using Cox Neck Road and Sound Avenue/North Road.
The traffic volume counts were collected in both 2021 and 2022 and this report is being submitted in
2022. Traffic volume data has been summarized for presentation. The 2021 data was grown by1
percent to simulate 2022 volumes and the August 2022 data was adjusted seasonally bya factor
provided byNYSD0Itoreplicate Spring data iu addition tu summer data. Figure 8 (2023 Existing
Spring Traffic Volumes)iu the T|S summarizes the spring 2022 traffic volume counts for the weekday
AM and PM peak hours and Saturday peak hours of traffic. Figure 9 (2032 Existing Sunnnnmc IcatDc
Volumes)iu the IIS summarizes the Summer 2U22 traffic volume counts for the weekday AK8 and PK0
peak hours and Saturday peak hours of traffic. Similar summarized traffic volume data may be found
in the Appendix of this study for the winter 2022 and fall 2022 data collection efforts.
lo addition to the ATDs and vehicular volume counts pedestrian and bicycle counts were taken in
August of2O22 along Cox Neck Road and West Mill Road. The counts were taken between 6:UUAK8
and 6:00 PM on a weekday.The counts were done on Cox Neck Road at Westphalia Road,at Cox Neck
Road/West Mill Road near Breakwater Road,and West Mill Road at Bayview Avenue/Selah Lane.
The detailed 2031 traffic volume counts, and vehicle classification studies is included in the TlS
Appendix entitled, ''3021 Traffic Data". Traffic volume counts, pedestrian and bicycle counts, and
vehicle classification counts collected io August 2U22 can be found io the Supplemental Data Appendix
of the IlS.
Parking and Site Circulation
On-site parking is provided throughout the site with eight(8) paved stalls to the north of Building 2,
and 13 paved stalls to the east side of Building 3. The number of parking provided at the subject
property is non-conforming with the requirements set forth io§§28U-78 and 38O-79of the Town of
Southold Town Code.Site circulation currently goes from the entrance at West Mill Road and extends
south towards Building 8.Vehicles are able to travel both north and south to access the portions of the
site.
Accident History
Accident data was requested from the NYSD0T for all accidents that occurred along Cox Neck
Road/West Mill Road from its intersection with Sound Avenue/North Road (CR 48)to its terminus at
Matbtucb Creek and SYC.Accident data for the period January 1'2U1),to June 3U.2U20.was provided
byNYSD0T. The Accident Verbal Descriptions are provided in the Appendix of the TIS in Appendix 0
201
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
of this DEIS. Additional data was obtained from NYSDOT in July 2022 to supplement and expand the
accident analysis to cover the period from January 1, 2017, to December 31, 2021, a full 60-month
period. The additional accident data is provided in the Supplemental Data Appendix of the TIS. In
addition to the accident data available from NYSDOT, accident data was obtained from the Southold
Town Police for the period January 1, 2018, to December 31, 2021, a period of three years. The
accident data obtained from the Police was largely duplicative of the data originally obtained from
NYSDOT. The Town Police Accident records are included in the Supplemental Data Appendix of the
TIS.
During the 60-month period, a total of 48 accidents occurred. Only eight (8) of the 48 accidents
resulted in injuries,and none were fatal.Thirty-two(32)were property damage only and an additional
eight(8) accidents were classified as non-reportable,meaning that the value of the property damage
was less than one thousand dollars.
Twenty-eight(38) of the accidents were associated with the intersection of Cox Neck Road at Sound
Avenue/North Road,with 23 accidents involving rear end accidents; most of those were associated
with traffic moving east/west on Sound Avenue/North Road. Five of the rear end accidents were
associated with the Yield signs controlling the channelized right turn lanes at the intersection.The rate
of accidents occurring at the intersection is not atypical for an intersection with similar volumes.
As noted by NYSDOT,10 accidents occurred on Cox Neck Road/West Mill Road in the 60-month period.
Further details of these 10 accidents are included in the TIS.
The detailed accident data received from the NYSDOT is provided in the TIS Appendix entitled,
"Accident Data." The additional data received is included in the Supplemental Data Appendix of the
TIS.
Planned Roadway Improvements
To determine whether there are any plans for improvements to the roadways in the study area, the
latest available Nassau - Suffolk Transportation Improvement Program (TIP) was reviewed. The
review revealed no projects involving the reconstruction and improvement of roadways serving SYC
prior to its expected completion. Information obtained from the Town of Southold Highway
Department indicated that a segment of Cox Neck Road from just north of Sound Avenue/North Road
to Bergen Avenue would be resurfaced with 1-1/2 inches of Type 6 asphalt. This project has been
delayed as the Town has determined that drainage work needs to be done prior to the resurfacing.The
Town Highway Department has also indicated that resurfacing should be delayed until it is determined
how the SYC project will be conducted,with preference to performing the resurfacing after the SYC
work is complete.
Other Planned Developments
To properly conduct the TIS,it is necessary to examine the cumulative effects of this project as well as
other planned developments in the area. To this end,any other developments approved and planned
to be constructed before 2023 (this project's Build year) which may impact traffic conditions in the
202
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
area were identified. The Town of Southold was contacted, and a representative of the Planning
Department indicated that there were no currently planned projects within the area of the proposed
development that would generate significant enough traffic to impact conditions at the Study
intersections.
3.3.2 Potential Impacts
2025 No Build Traffic Volumes
In order to develop a basis to gauge potential impacts of the proposed traffic on the surrounding
roadway network,the 2021 volumes were grown to replicate conditions in 2025 when the project is
expected to be complete. The background traffic growth of traffic,as identified by the NYSDOT Data
Services Bureau, was added to the 2022 Existing volumes. The anticipated background growth of
traffic,as per NYSDOT,is 1.00 percent per year in the Mattituck area. The Town of Southold Planning
Department was also consulted to determine if there were any other significant planned projects that
would add traffic to the area roadways prior to the completion of the proposed action. No other
significant projects where identified. Following this methodology,the 2025 No Build Volumes were
generated.
Figure 10 (2025 No Build Summer Traffic Volumes) in the TIS presents the summer 2025 No Build
traffic volume counts for the weekday AM and PM peak hours and Saturday peak hours of traffic.
Site Trip Generation Analysis
SYC is an existing facility and the existing traffic being generated is already being accommodated on
the existing road system. The proposed project would add two storage buildings and other minor
modifications that facilitate the use of the new storage space and would upgrade the infrastructure on-
site,such as new sanitary systems and public water supply. Other than the new activity generated by
the availability of the new storage space,the other site enhancements would not generate additional
traffic.
Typically, estimates of traffic a proposed project will generate are developed utilizing the Institute of
Transportation Engineer's (ITE) report "Trip Generation" (101h edition). The reference contains
studies of various potential land uses the numbers of daily and hourly trips those land uses may
generate. The data is provided is based on rates of generation, the size of buildings, units of usage
(homes,apartments,rooms,beds,etc.)or employees. The"Trip Generation"report contains Land Use
Code 420, Marina. The traffic generation rate is based on the number of berths the marina provides.
There are no studies based on building sizes or numbers of employees at the facility. SYC currently
has 40 berths and will still have only 40 berths upon completion of the project. Based on ITE data
there would be no change in traffic generation due to the project.
However,the proposed two new storage buildings at SYC will create some new traffic. SYC anticipates
that up to 11 new permanent positions at the subject property associated with the two new buildings.
There are currently 17 full-time staff at SYC, and upon implementation of the proposed action, the
Applicant expects to create an additional 11 positions to reach a total of 28 employees. There is
203
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
currently variation in the number of employees on-site during the week with 17 on-site Monday thru
Friday year-round.During the season,12 are typically on-site on Saturday and 4 on Sunday. Off season
there are typically 4 on-site on Saturday and the facility is closed on Sunday in the winter or possibly
one staff member during the time period between the peak and off-peak season. This activity is all
existing currently. The counts collected for the project already have these employees accounted for,
as is all the activity of the existing marina.
As indicated above in this Section of the DEIS, 11 new employees would be added at the site in the
future following the construction of the new storage buildings. The additional personnel would
accommodate the increased business generated by the presence of the additional yachts wintering at
the SYC,including pulling and launching the vessels,prepping them for storage,and performing repairs
and regular maintenance. The new employees that would be used to service boats destined for new
storage building will primarily work during the weekday. The arrival and departure of these new
employees to and from the marina would be the only additional traffic the proposed project would
generate once complete and operating.
The actual presence of the stored vessels creates little new traffic except the random drop-off and
pickup of a stored vessel by an owner or the owner's crew. However,SYC maintains a schedule for all
incoming and outgoing vessels,thus,the arrival of a crew in delivering a vessel or removing a vessel
post-development would also be controlled by SYC.This increase in activity would not be noticeable.
The only real increase in traffic would come from the 11 new employees that are expected to be
brought on to accommodate the additional work that storing the yachts would create. It is assumed
that all 11 new employees would work weekday business hours and as such,they are likely to create
11 entering trips in the morning and 11 exiting trips in the evening. This is a small number of
additional trips and would have negligible traffic impact on Cox Neck Road/West Mill Road.
Table 32 below,as excerpted from Table 2 -Site Generated Traffic in the TIS provides the number of
trips the existing site is currently generating based on the ITE Trip Generation Manual. "Trip
Generation" (10th edition), is a nationally excepted standard for predicting the trip generating
characteristics of typical land uses. It is based on thousands of studies of existing land uses and the
amount traffic each land use generates. As indicated above, "Marina" is a land use included in the
reference manual and statistics are provided to predict how much traffic would be generated. The
marina use utilizes the number of berths the marina has,to predict amount of traffic a 40-berth marina
would typically generate. The table below also indicates the number of trips the new employees would
create during the weekday AM and PM peak hours and Saturday peak hours of traffic. The new
employees would all be scheduled to work during a normal weekday, arriving in the morning and
departing in the evening. New employees would not work on Saturday and would not generate
additional traffic.
The traffic associated with the current marina operation already exists on the study roadways and the
project traffic counts already account for this traffic.To determine the traffic impact of the completed
project,it is necessary to focus on the additional traffic the project would add,that would result from
hiring 11 new employees. When using employees as a basis of trip generation based on ITE
methodology (such as with an office use), the trips generated are generally less than the total
employees at the site. Some employees come in early,some come in late, some may not come in that
day,or some may be in the field to pick-up a boat.However,to take the most conservative approach to
the analysis,it has been assumed that all 11 employees enter the site in the during the AM peak hour
204
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
and depart during the PM peak hour. It is further assumed that 2 of those employees are either
dropped off or leave the site during the same time period.
Table 32-Site Generated Trips
Use Vehicle Trips per Hour
Weekday A.M. WeekdayP.M. Saturday
Peak Hour Peak Hour beak Hour
Enter Exit Enter Exit Enter Exit
Existing Marina with 40 3 2 6 3 4 5
slips(Land Use Code 420)
New Employee Trips 11 2 2 11 0 0
(11 New Employees)
Total 14 4 8 14 4 5
Based on the TIS, new trips that the proposed project will generate will largely come from incoming
and outgoing of the new employees. While the new business of storing vessels will generate additional
equipment and materials being brought to the site, most of these deliveries will use vendors already
making deliveries to the site. Vendors such as UPS, the US Post Office,Amazon, and several marine
suppliers already deliver parts and materials to the site. The same vehicles that are now making
deliveries will just carry additional parts or greater volumes of product but make the same number of
trips. The new business may generate some new deliveries, but these would only be expected to be
one-to-two per week. It should also be noted that deliveries currently being made to the site are
generally occurring between the weekday AM and PM peak hours.
Regarding traffic for boats stored on-site, SYC will maintain a schedule for vessels coming in and out
of storage,thus,the arrival of a crew in delivering a vessel to SYC or removing a vessel is controlled by
SYC.As indicated in the Boat(Vessel) Study,approximately one-to-two boats per day are anticipated
for the fall and spring season,with approximately 90 percent of the yachts being handled by SYC staff
or for-hire captains and the remaining 10 percent being owner-operated (i.e.,the yacht owner drives
the vessel). As such,the trips associated with such would not be noticeable.
205
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As evaluated in the TIS, automatic Traffic Recorder Counts and Vehicle Classification Counts were
taken in August 2022 on West Mill Road, 100 feet east of Naugles Drive. The count captured all of the
traffic entering and exiting SYC. Due to location of the count, it also captured traffic destined for the
Mattituck Commercial Dock on the Mattituck Inlet that serves commercial fishing vessels and a single-
family home with access onto West Mill Road. The following was counted,as excerpted from Table 1
in the TIS:
Vehicle'Trips per Hour(West Mill Road,100 feet east of'Naugles Drive)
"Weekday A.M.Peak flour Weekday P.M.Peak Hour Saturday Peak Hour
E/1 W/B E/B W/B lEa/B W/B
17 4 7 21 12 14
Based on the above data,the existing SYC may generate more traffic than a typical marina due to the
fact that there are other services on-site, including sales of new and used boats and
repair/maintenance of boats, as well as the type of boats serviced/docked. The SYC services larger
vessels and services other vessels which arrive by water. The existing staff of 17 serves the marina as
well as the other services. As a result, the weekday AM, and PM peak hour site generated traffic
appears to be more driven by arrival and departure of the existing staff. While the existing traffic
generated by may be higher than ITE predictions,it is existing traffic already on the roadways and part
of the No Build Condition.
Directional Distribution Analysis
To determine the origins and destinations of new vehicles entering and exiting the proposed
development,a directional distribution analysis was performed. The additional traffic that would be
generated would consist of arrival and departure of new employees. As such, the trip distribution
analysis examined the traffic flow along Sound Avenue/North Road during the AM weekday peak hour.
Figure 11(Site-Generated Traffic Distribution)in the TIS presents the directional distribution of traffic
that is expected to arrive at and depart from the proposed development via the existing roadways.
Traffic Assignment Analysis
The site-generated traffic estimates and the directional distribution were utilized to assign the
expected generated traffic volumes at the proposed shared common access driveway and on the
surrounding roadway network.
Figure 12 (Site-Generated Traffic at Completion) in the TIS shows the site-generated traffic for the
proposed project during the weekday morning peak hour, and the weekday PM peak hour, and
Saturday peak hour of highway traffic using the directional distribution for the new site generated
traffic. No assignment of traffic is provided for the Saturday Peak Hour as new traffic is expected to be
generated by the completed project.
206
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Figure 13 in the TIS illustrates the Site Generated Traffic(as presented in Figure 12)was added to the
2025 No Build Summer Traffic as presented in Figure 11 in the TIS to create the 2025 Build Summer
Traffic Volumes with the completion of the project.
Intersection Capacity Analyses
Signalized Intersections
Signalized intersection capacity analyses were performed to determine the ability of vehicles to safely
negotiate turning movements at the key signalized location noted below:
• Sound Avenue/North Road(CR 48)at Cox Neck Road
• North Road(CR 48)at Northwest bound Sound Avenue
All analyses were performed in accordance with the latest methodology set forth in the 6th Edition of
the Highway Capacity Manual using SYNCHRO software as was utilized for the signalized capacity
analyses.
Methodology
The signalized intersection capacity analysis methodology evaluates the average control delay per
vehicle to determine intersection level of service. Several variables impact the measure of control
delay, including quality of progression, cycle length, green ratio, and volume-to-capacity (V/C) ratio
for the lane group in question.
Level of service for a signalized intersection is defined in terms of the average control delay per vehicle
during a peak 15-minute analysis period. Control delay consists of initial deceleration delay, queue
move-up time,stopped delay,and final acceleration delay. Six levels of service,from A to F,have been
established as measures of vehicle delay. These levels and their related control delay criteria are
summarized in Table 2 (Signalized Intersections-Level of Service Criteria)in the TIS.
As marina type operations experience peak activity during the summer months and the counts taken
for this study during the four seasons of the year indicated that peak roadway volumes occurred during
the summer the capacity analysis focused on peak summer conditions.This analysis reflects conditions
which could be expected to prevail after the project is completed and fully operating during peak
summer activity of the site and the surrounding roads.
First, a signalized capacity analysis was conducted to examine the existing conditions at the study
intersections when the data was collected. The 2022 Existing Analysis verifies that the analysis is
correctly modeling operations at the intersections. Next,the 2022 volumes were grown to replicate
conditions in 2023 when the project is expected to be complete. The background traffic growth of
traffic as identified by the NYSDOT Data Services Bureau was added to the 2022 Existing volumes.The
anticipated background growth of traffic as per NYSDOT is 1.00 percent per year in the Mattituck area.
The Town of Southold Planning Department was also consulted to determine if there were any other
207
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
significant planned projects that would add traffic to the area roadways prior to the completion of the
proposed project. No other significant projects were identified. The 2025 No Build traffic analysis was
then conducted to determine intersection operating conditions in 2025 without the project.
The signalized intersection capacity analyses were then performed to examine 2025 levels of service
with the added traffic from the proposed project(2025 Build Condition).
The signalized intersection capacity analyses results have been provided in comparison tables
provided in the section of the TIS Appendix entitled"Intersection Capacity Analyses Summaries." The
tables provide the intersection Levels of Service (LOS) and intersection delay by movement,
intersection approach, and the overall intersection. These results are presented side by side for the
2022 Existing, 2025 No-Build and 2025 Build Conditions for ease of comparison. The detailed
signalized intersection capacity analysis results are provided in the TIS Appendix entitled "Detailed
Capacity Analysis Results."
Based on the results of the signalized capacity analysis,the small increase in traffic from the project
would create negligible traffic impacts once the project is complete and fully operational.The analysis
indicates that no intersection LOS change and there are no individual movement LOS degradations at
the intersections.
Unsignalized Intersections
Unsignalized intersection capacity analyses were performed to determine the ability of vehicles to
safely negotiate turning movements at Cox Neck Road/West Mill Road at Breakwater Road.
All analyses were performed in accordance with the methodology set forth in the latest edition of the
Highway Capacity Manual, 6th Edition, using the same SYNCRHO 11 software as was utilized for the
signalized capacity analyses.
Methodology
The unsignalized intersection capacity analysis methodology evaluates the average control delay per
vehicle to determine level of service. Level of service for a two-way stop-controlled intersection is
defined solely for each minor movement. Several variables impact the measure of delay for a two-way
stop-controlled intersection, including the level of conflicting traffic impeding a minor street
movement and the size and availability of gaps in the conflicting traffic stream.
Level of service for an unsignalized intersection is defined in terms of the average control delay per
vehicle during a peak 15-minute analysis period. Control delay consists of initial deceleration delay,
queue move-up time,stopped delay,and final acceleration delay. Six levels of service,ranging from A
to F,have been established as measures of vehicle delay. These levels and their related control delay
criteria are summarized in Table 3 (Unsignalized Intersections-Level of Service Criteria)in the TIS.
First,the unsignalized capacity analysis was conducted to examine the existing conditions at the study
intersections when the data was collected. The 2022 Existing Analysis verifies that the analysis is
208
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
correctly modeling operations at the intersections. Next,the 2021 volumes were grown to replicate
conditions in 2025 when the project is expected to be complete. The background traffic growth of
traffic, as identified by the NYSDOT Data Services Bureau, was added to the 2022 Existing volumes.
The anticipated background growth of traffic,as per NYSDOT,is 1.00 percent per year in the Mattituck
area. The Town of Southold Planning Department was also consulted to determine if there were any
other significant planned projects that would add traffic to the area roadways prior to the completion
of the proposed project. No other significant projects were identified. The 2025 No Build traffic
analysis was then conducted to determine intersection operating conditions in 2025 without the
project.
The unsignalized intersection capacity analyses were then performed to examine 2025 levels of
service with the added traffic from the proposed project(2025 Build Condition).
The unsignalized intersection capacity analyses results are provided in comparison tables in the TIS
Appendix entitled"Intersection Capacity Analyses Summaries." The tables provide the LOS,volume to
capacity ratios(V/C)control delay,and 951h percentile queue length by critical intersection approach.
These results are presented side by side for the 2022 Existing, 2025 No-Build and 2025 Build
Conditions for ease of comparison. The detailed signalized intersection capacity analysis results are
provided in the Appendix of the TIS appended in Appendix 0 of this DEIS in the section entitled
Detailed Capacity Analysis Results.
As indicated in the TIS, the results of the unsignalized capacity analysis indicate that the increased
traffic from the project would create negligible traffic impacts once the project is complete and fully
operational. The analysis indicates that no intersection LOS change and there are no individual
movement LOS degradations at the intersections.
Access Examination
SYC is located at the eastern terminus of West Mill Road and the entrance/exit of the site is essentially
a continuation of the roadway. As shown on the site plan West Mill Road ends at the northerly border
of the site. There is currently a fence line crossing the northerly border of the site with a gate which
allows ingress and egress from the site. To the east of the gate is a garage that also defines the northerly
limit of the site. As there is no intersection with cross streets to interfere with traffic entering and
exiting the site onto West Mill Road,the site access is safe. The proposed access plan has been designed
to provide safe and efficient access for both patrons and employees of the proposed site.
Temporary Haul Road and Emergency Access
A temporary haul road would be developed in the first phase of the project to facilitate the removal of
excavated material during the initial grading of the site.The temporary haul road is only planned to be
used during the Phase 1-Excavation portion of the project,a period of 5-6 months.During this period,
it would primarily be used by trucks removing excavated material from the site.Following its use as a
haul road,the haul road would be used for emergency access to the site by police, fire or ambulance
vehicles,should it be necessary.
209
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
The haul roa d would interse ct West Mill Road approximately 1,60 0 feet north of Bay View Avenue and
600 feet south of the almost 900 turn in West Mill Road to the east. Sight distance to the north and
south of the proposed temporary intersection would be more than 500 feetin either direction,farmore
than the suggested intersection sight distance and the coguicod stopping sight distance for
intersections. The segment of West Mill Road where the proposed temporary intersection would be
constructed experiences light traffic volumes(less than 50 trips per hour),particularly during the late
fall,winter,and early spring months when the road would be used.There have also been no recently
identified accidents in the vicinity of the intersection.The combination of excellent sight distance and
low volumes on West Mill Road indicate that the proposed temporary intersection would operate
safely.
It is anticipated that traffic using the temporary haul road come from the south and return to the south.
To facilitate the movement of traffic,particularly trucks in and out of the haul road,a wide radius would
be used on the southeast corner of the intersection and a 100-foot stabilized shoulder would be
provided.
Parking and Site Circulation
Based on the current and post-development storage area, the Tuvvu of Southold parking ordinance
requires as26J surface parking stalls are required.A total o[57 spaces are provided with 4ofthem
being handicapped spaces. There are currently 23 stalls provided on-site. The proposed action
including the creation of 34 new parking stalls on-site by striping gravel-surfaced areas that are
currently used for parking but are not formally marked. Upon implementation o[the proposed action,
the available parking would 6m increased from 23 stalls tnG7stalls.
The lI8 provides data on the packing characteristics of Marinas in their reference book "Parking
Cmumcabon." In the reference,under Land Use Code 420(Marina),data from a study of the marina use
is provided. The basis of the study was on the number of berths provided at the marina and the study
found that marinas generated a parking demand of 0.35 parked vehicles per berth. {n the case ofthe
SYC the expected demand would be for 14 parked vehicles.It should be noted that the parking demand
observed at the marina included all accessory uses at the marina including the servicing and storage
of boats,retail sales and service,marina office,and the sale of fuel for boats.All services offered mtthe
SYC.
SYC is unique in their operation in that the number of berths/slips available is relatively small, but
their service and storage operations, particularly those proposed' are larger in proportion to the
number of slips provided. With this iu mind,itis reasonable to include the number of employees into
mu examination of parking demand. 3YC when complete will have upto27 employees ousite.Allowing
one space for each of the %7 employees plus the anticipated demand from 4Uslips atl4 spaces, the
total anticipated demand for parking is 41 parking spaces. It should be recognized that this
methodology is conservative and partially double counts activities included in the ITE data. Further,
the marina would be fully staffed by 27 employees during the weekdays with lower staffing on site on
the weekend,while peak demand generated by the slips and owners using their boats is generated on
weekends and holidays.
210
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The SYC currently supplies adequate parking for the existing facility with 23 stalls provided on-site
and another area currently used for parking but are not formally marked.The proposed new buildings
are for boat storage only and would not generate additional parking demand other than by the new
employees that will work in the buildings. The additional 11 employees expected post-development
will generate the need for 11 additional parking spaces.Additional parking is being provided for these
11 employees. Again,it should be remembered that the new employees will be Monday through Friday
workers while peak demand generated by typical marina operations occur on the weekend and
holidays. As such,the proposed 57 total parking spaces with 4 handicapped spaces would adequately
meet the parking needs of SYC.
All site parking is accessed from a centralized access aisle located between the bulkhead along
Mattituck Inlet and the buildings.The aisle has a minimum width of 24 feet and is often more generous
than that. The site circulation plan is adequate for the intended purpose.
Construction-Related Traffic Impacts
Proposed Construction Schedule
The TIS relied upon the construction schedule and details provided by Red Rock Construction,
included in various sections of this DEIS. As excerpted from the TIS, the following employment,
employee trips and trucking was used in the analysis of each phase of the construction activity:
• Clearing and Grubbing of the Site (2 weeks),
Heavy equipment would be brought to the site to perform the work. During this period, the
temporary haul road to West Mill Road would be constructed. Equipment would include an
excavator, feller buncher, woodchipper, tub grinder and payloader. The equipment would be
brought to the site over a two-day period and remain on site for two weeks and be removed. One
truck with 30-yard trailer would be used to remove ground-up debris 3 to 4 times per day. The
truck with trailer would not remain on site but would return to its base each night. On average,
the truck with trailer would generate no more than one entering trip every other hour and one
exiting trip every other hour.
Each piece of equipment would have an operator(5) and four additional laborers would support
the work. Each morning up to 9 employees and the truck with trailer would arrive at the site and
depart at the end of the day.
• Phase 1 Excavation(5-6 months)
Phase 1(Excavation)will include the removal of 123,000 cubic yards of material from the site.The
material will be hauled off the site in 30-yard trailer trucks.In all,the removal of the material will
require a total of 4,100 loads with 4,100 empty trucks arriving at the site and 4,100 trucks leaving
the site with full loads.The work will thus generate 8,200 truck trips.
211
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Heavy equipment would be brought to the site to perform the work.During this period,2 loaders,
2 excavators, 2 dozers and 1 fuel/water truck would be brought to the site and would remain
through the Phase 2 Excavation.The equipmentwould be brought to the site over a two-day period
and remain on site until the Phase 2 Excavation is complete and be removed. They would be
operated by 7 operators that would arrive at the site by personnel vehicle and depart at the end
of the day. In addition to the operators, a Project Manager, a Site Safety Supervisor, 2 Flag
Personnel and 4 Laborers would report to the site by personnel vehicle for a total of 15 personnel
vehicles. Work would be performed from 7:00 am till 5:00 pm five days per week (Monday to
Friday).
In addition to the equipment and workers noted above trucks with 30-yard trailers would be used
to transport excavated material from the site. These vehicles would begin arriving at 7:00 am and
the last would depart at 5:00 pm Monday through Friday.No excavation would take place during
the weekend.To meet the project schedule,it is estimated that 40 trips would be made to and from
the site during the ten-hour workday. Four trips(entering and exiting)would be made each hour
during the day.
Trucking and employee arrivals would be via the temporary haul road. At the end of the Phase 1
Excavation,the temporary haul road would be closed for construction but remain for emergency
access.
• Phase 2 Excavation(2 to 4 weeks)
Phase 2 (Excavation)will include the removal of 12,000 cubic yards of material from the site.The
material will be hauled off the site in 30-yard trailer trucks.In all,the removal of the material will
require a total of 400 loads with 400 empty trucks arriving at the site and 400 trucks leaving the
site with full loads.The work will thus generate 800 truck trips.
This Phase would use the same excavation and loading equipment brought to the site for the Phase
1 Excavation and would be operated by the same 15 employees. They would arrive at the site in
personnel vehicles.
In addition to the equipment and workers noted above trucks with 30-yard trailers would be used
to transport excavated material from the site. These vehicles would begin arriving at 7:00 am and
the last would depart at 5:00 pm. No excavation would take place during the weekend. To meet
the project schedule, it is estimated that 40 trips would be made to and from the site during the
ten-hour workday. To take a conservative approach,it would be assumed that four trips(entering
and exiting)would be made each hour during the day.
The Phase 2 Excavation and all subsequent phases would use the main entrance to SYC at the
eastern terminus West Mill Road to enter the construction area.
212
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Retaining Wall Construction(3 weeks)
This phase of the project would be run concurrently with the drainage installation and building
construction phases of the project. A loader and an excavator from the prior excavation phase
would be used in this phase. In addition,a skid steer and mini excavator would be brought to the
site for the work. These pieces of equipment would be operated by 4 operators and be supported
by 4 laborers. Eight employees would be required to complete this phase and they would arrive
in the morning and depart at the end of the day.
Over the three-week period it is estimated that 60 trucks with trailers would be required to bring
in the retaining wall material. Over the 15-day period four loads a day would be brought to the
site.
• Drainage Excavation and Installation(2 months):
This phase of the project would be run concurrently with the retaining wall installation and
building construction phases of the project. A loader and two excavators from the prior excavation
phase would be used in this phase. In addition,a skid steer and mini excavator would be brought
to the site for the work. These pieces of equipment would be operated by 5 operators and be
supported by 2 laborers. Seven employees would be required to complete this phase and they
would arrive in the morning and depart at the end of the day.
One truck with trailer would be used to transport leaching basins and connecting pipe to be
installed. It is expected that no more than two total trips per day are contemplated. These trips
to the site would not occur during the weekday peak hours of traffic.
• Building Construction(6 months):
Building Construction would be concurrent with the building of the retaining wall and the
installation of drainage. Many of the earth moving and loading equipment would be shared
between the three operations and had been brought onto the site for the excavation phases of the
project. These pieces of equipment would be removed from the site after the completion of the
retaining wall and drainage installation. Several pieces would remain until building completion.
Several new pieces of equipment,specific to the building construction would be added including
one telescopic lift and several scissor and telescopic lifts. The Project Manager and Site Safety
Supervisor would oversee the Building Construction, Retaining Wall Construction,and Drainage
Installation.
With the concurrent phases noted,the total number of employees on site would vary from 20 to
60 as the building is erected and the retaining wall, drainage, and site work are completed. The
construction company engaged to complete the work has committed to utilize company multi-
occupant vehicles to transport many of the construction workers to the site. No more than 40
vehicles used for employee transportation should be on site each day. On many days,the number
of employee transport vehicles would be lower. For the purpose of this analysis, and to take a
conservative approach,40 vehicles are anticipated to carry construction workers to the site in the
213
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
morning and depart in the late afternoon when work is complete. It is expected that most of the
work would be done during the weekday period,however some work would carry into Saturday.
Saturday would mostly be used for maintenance of equipment and set up for the following week's
work.
Estimated Construction Traffic
The construction activity has six distinct phases,although three would occur concurrently. The Phase
1 Excavation Phase generates the most daily truck trips (40), but less employee trips (15). The
Building Construction Phase and concurrent Retaining Wall and Drainage installation would generate
the most employee trips,but less daily truck trips. As noted above,the Building Construction generates
between 15 to 40 employee trips.It is expected that during the building construction phase that up to
5 truck trips per day would make deliveries to the site and two trucks per week would remove debris
from the site.The traffic analysis of construction activity would focus on these two construction phases
of the project which are the ones with peak traffic flow generated by the project.
The Phase 1 Excavation Phase would begin in mid-December and carry through May. Much of the
activity would occur during the winter and spring months when traffic volumes are low,as evidenced
by the traffic counts conducted during the four seasons of the year. During the Excavation Phases,
trucks would take the excavated material south on West Mill Road/Cox Neck Road to Sound
Avenue/North Road and then west on Sound Avenue.Due to the nature of the construction work and
construction company's location west of Riverhead,it is anticipated that 90 percent of workers would
come from the west and 10 percent would come from the east. All truck trips are expected to come
from and return to the west,ultimately via the Long Island Expressway(1-495).
Table 33 below is excerpted from Table 5 (Construction Generated Traffic,Phase 1 Excavation)in the
TIS and provides the amount of traffic that the Phase 1 Excavation would generate during the weekday
AM and PM peak hours of traffic flow. No traffic is estimated to be generated on Saturday.
Table 33-Construction Generated Traffic for Phase 1-Excavation
Vehicle Trips per Hour
Generator WeekdayA.M. Weekday P.M. Saturday
Peak Hour Peak Hour Peak Hour
Enter Exit Enter Exit Enter Exit
Employees(15) 15 4* 4* 15 NA NA
Trucks(4 per hour) 4 4 4 4 NA NA
Total 19 8 8 19 NA NA
4 trips are added to account for potential pick-ups and drop-offs.
214
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Figure 14 (2024 Site Generated Truck Traffic Volumes at Phase 1 Excavation) shows the arrival and
departure of construction related traffic during the Phase 1 Excavation for the weekday AM peak hours
and PM peak hours. Figure 15 (Site Generated Passenger Vehicle Traffic Volumes at Phase 1
Excavation) presents the site generated passenger vehicles that will be generated during the Phase 1
Excavation for the Weekday AM and PM peak hours.The construction generated traffic resulting from
the Phase 1 Excavation was then added to the 2024 Spring No Build traffic and is shown on Figure 16
(2024 No Build Spring Traffic Volumes).The Construction No Build Traffic was developed in the same
manner as the Project No Build Traffic growing the 2022 Existing Spring Traffic to 2024 using a 1%
per year growth factor. The Composite 2024 Spring Construction Traffic resulting from the Phase 1
Excavation of the site is presented in Figure 17 (2024 Build Spring Traffic Volumes at Phase 1
Excavation).
Table 34 below, as excerpted from Table 6 (Construction Generated Traffic) in the TIS provides the
amount of traffic that the Construction Phase concurrent with Retaining Wall and Drainage work
would generate during the weekday AM and PM peak hours of traffic flow. It is anticipated that this
work would also be done on Saturday during this phase.Early in this phase with the retaining wall and
drainage work being done at the same time,up to 60 workers maybe on site at one time. The number
of workers would vary after that but would not exceed a maximum of 60. It would be assumed that 60
employees would arrive at the site in the morning and depart in the evening. Some work would be
done Saturdays, but it is expected that only partial crews would be on site to do maintenance of
equipment and set up for the next week's work. To take a conservative approach,it would be assumed
that the Saturday work effort would be the same as during the weekdays for traffic analysis purposes.
During this period,truck trips would consist of deliveries of site materials. Additionally,approximately
two trips a week would remove debris from the site.The number of deliveries is estimated to be less
than five a day and would take place between 9:00 am and 3:00 pm in each peak hour to be examined.
To take a conservative approach, it would be assumed that one truck would make a delivery during
each peak hour,although this is unlikely to occur.
Table 34-Construction Generated Traffic for Building Construction Phase Concurrent with Retaining
Wall and Drainage
Vehicle Trips per Hour
Weekday A.M, Weekday P.M. Saturday
Generator Peak Hour Peak Hour Peak Hour
Enter Exit Enter Exit' Enter Exit
Employees(60) 60 10* 10* 60 10* 60
Trucks(1 per hour) 1 1 1 1 1 1
Total 61 11 11 61 11 61
*4 trips are added to account for potential pick-ups and drop-offs.
215
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The materials need for the construction of the buildings,drainage and retaining walls would all come
from suppliers west of the site.Trucks delivering these building materials from the west,would arrive
on Sound Avenue east bound turning north on Cox Neck Road/West Mill Road. After dropping off their
loads they would depart by reversing their arrival route. Workers that would perform the work would
also mostly come from the west. It is estimated that 90 percent of the workers would arrive via east
bound Sound Avenue to northbound Cox Neck Road/West Mill Road and leave by the reverse of that
route. An estimated ten percent of the workers would arrive from the east via west bound North Road
to northbound Cox Neck Road/West Mill Road and depart in the reverse of this route.
Figure 18 (Site Generated Passenger Vehicle Traffic Volumes at Building Construction) shows the
arrival and departure of construction related traffic during the Building Construction for the weekday
AM peak, and PM hours and Saturday peak hours. The construction generated traffic resulting from
the building construction following the excavation of the site was then added to the 2024 Summer No
Build Traffic Volume and is shown in Figure 19 (2024 Summer No Build Traffic Volume). The
Composite 2024 Summer Construction Traffic resulting from the building construction with
concurrent retaining wall construction and drainage work is presented in Figure 20 (2024 Build
Summer Traffic Volumes at Building Construction).
Analysis of Construction Traffic Impacts
As noted, the two phases of the construction effort that will generate the most construction related
traffic are the Phase 1 Excavation and the Building Construction Phase. The excavation will generate
the most truck trips and the Building Phase will create the most total traffic but will include fewer
truck trips.The construction traffic from each of these phases have been analyzed against the 2024 No
Build Traffic to determine the potential impacts of the Construction traffic on the study intersections.
The Phase 1 Excavation traffic was compared with the 2024 No Build traffic based on the spring 2021
counts. The Phase 1 excavation Phase will begin in Mid-December 2023 and last into late Spring of
2024.The Winter 2021 counts exhibited substantially lower volumes than the Spring 2021 counts. It
was determined that the Spring data would present a more conservative analysis then utilizing Winter
as a base.
The Building Phase of the project will begin in late Spring,early Summer of 2024 and last until the late
Fall of 2024. To analyze the impact of the construction traffic related to the Building Phase and
consider a worst-case scenario,the No Build 2024 analysis was based on the Summer 2021 count data,
as was the analysis of the 2025 Build scenario for the completed project.
The analysis of the signalized intersections was conducted as detailed in the Intersection Capacity
Analysis above. The signalized and unsignalized intersection capacity analyses results have been
provided in comparison tables provided in the section of the TIS Appendix entitled "Intersection
Capacity Analyses Summaries, Construction Traffic." The tables provide the intersection LOS and
intersection delay by movement,intersection approach,and the overall intersection.These results are
presented side by side for the 2024 No-Build and 2024 Build Conditions for ease of comparison.The
detailed signalized and unsignalized intersection capacity analysis results are provided in the TIS
Appendix entitled"Detailed Capacity Analysis Results,Construction Traffic."
As indicated in the TIS,the results of the signalized and unsignalized capacity analysis indicate that the
increased traffic from the construction project would create negligible traffic impacts once the project
216
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
is complete and fully operational.The analysis indicates that no intersection LOS change and there are
no individual movement LOS degradations at the intersections.
Additional Considerations
Truck Routing Plan
It is anticipated that all truck deliveries for the construction of the project would arrive from the west
on Sound Avenue and return using the reverse path. Likewise, the material excavated from the site
would be loaded on trucks and removed from the site. Trucks hauling this material would travel to
the west on Sound Avenue and return to the site empty also via Sound Avenue. The truck route will
utilize Sound Avenue to Northville Turnpike (CR 43) and then Old Country Road (CR 58)to the Long
Island Expressway(1495).
From Sound Avenue,trucks destined for the site would utilize Cox Neck Road/West Mill Road to arrive
at the site. During the first two phases of the project's construction, the site would be accessed via
temporary construction access onto West Mill Road, approximately 1,600 feet north of Bay View
Avenue. The construction of the temporary access would be accomplished at the beginning of the first
phase of construction. A temporary haul road from West Mill Road to the portion of the site where the
two new buildings are to be located would also be constructed. Following construction of the
temporary access and haul road, the site would be cleared, and the initial phase of the construction
completed. The Phase 1 Excavation of the site would be completed utilizing the temporary access to
West Mill Road and the temporary haul road. At the end of the Phase 1 Excavation,the temporary haul
road would be used by emergency access only and would not be used by any truck or employee access
to the site. Following the closure of the haul road,all access to the site for construction would be from
the existing access to the site at the end of West Mill Road. Figure 20 (Proposed Construction Truck
Route)in the TIS indicates trucks used for the construction of the project will utilize Sound Avenue to
Cox Neck Road/West Mill Road. Figure 20 in the TIS also shows access to the site via the temporary
haul road during the first two phases of construction and the existing site access that will be used for
all other phases of the project.
The nature of Cox Neck Road/West Mill Road is fully described in the section of this report entitled,
"Roadway Characteristics". Vehicles that traverse Cox Neck Road/West Mill Road will encounter no
school zones, and all intersections along the road are unsignalized Stop sign control with Cox Neck
Road/West Mill Road as the primary through road with no control. Vehicles on Cox Neck Road/West
Mill Road can move along the entire road from the site to the intersection of Cox Neck Road with Sound
Avenue. The speed limit along Cox Neck Road/West Mill Road is 35 mph.
The intersection of Sound Avenue at Cox Neck Road and North Road(CR 48)where site related vehicles
either exit Sound Avenue onto Cox Neck Road or enter onto Sound Avenue from Cox Neck Road is the
only roadway where traffic control and potential vehicle conflict points might impede traffic flow. The
intersection is well designed with separate lanes for all turning movements. A traffic signal under the
jurisdiction of the Suffolk County Department of Public Works controls the intersection. The operation
of the intersection was analyzed as part of this study. The results of the study are provided in the
section of this report entitled,"Analysis of Construction Traffic". The results of the analysis indicated
that the site related construction traffic generated by the site can be readily accommodated with
217
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
negligible traffic impact. The construction related traffic causes no change in the intersection LOS nor
any change in individual movement LOS.
The route that trucks and other vehicles will use during the construction of the site improvements,as
shown on Figure 21, is suitable for the expected traffic and can accommodate it with minimal traffic
impact.The proposed 30 mile per hour maximum speed to be observed by project trucks on Cox Neck
Road/West Mill Road will mitigate concerns of the community. Pictures of Cox Neck Road/West Mill
Road between Sound Avenue and the temporary haul road to Strong's Yacht Center are provided in
the Supplemental Data Appendix of the TIS.
Sound Avenue west of Cox Neck Road is well suited to carry the site related construction traffic. There
are no school zones along the road. East of Cox Neck Road North Road (CR 48)and west of Cox Neck
Road are designated as "Truck Route 25". The roadway is designated as "Truck Route 25" due to the
low height railroad bridge crossing over Route 25 east of Aldrich Lane. The roadway is also designated
as a Federal Aid Primary Roadway and is the only east/west roadway with that classification within
the Town of Southold.The speed limit on Sound Avenue is 45 mph.
Sound Avenue west of Cox Neck Road is provided with 11 ft travel lanes,one in each direction and 4 ft
shoulders that provide for pedestrians and bicyclists who also use the road. Within the Town of
Riverhead,Sound Avenue was repaved within the last 10 years to provide the shoulder adjacent travel
lanes as part of a Federal Aid project to provide for bicycle routes within the Town.Pictures of Sound
Avenue between Northville Turnpike and Cox Neck Road are provided in the Supplemental Data
Appendix of the TIS.
To the west,the truck route moves onto Northville Turnpike (CR 43).Northville Turnpike is a County
Road consisting of a single lane in each direction.Shoulders exceeding 5 feetwide flankthe travel lanes
and provide for pedestrian and bicycle use along the roadway. Turning lanes(left turn and right turn)
are provided at important intersections.Where the additional turning lanes are provided,the shoulder
narrows. In 2018, Northville Turnpike had an AADT of 6,218 vehicles per day of which 7.84 percent
were classified as heavy vehicles. Pictures of Northville Turnpike between Sound Avenue and Old
Country Road are provided in the Supplemental Data Appendix of the TIS.
The truck route west of Northville Turnpike (CR 43)to the Long Island Expressway(I 495)will utilize
Old Country Road(CR 58).Between Northville Turnpike and the Long Island Expressway(LIE),there
are two east bound lanes.West bound,there is one travel lane from Northville Turnpike which become
two lanes between Oliver Street and Ostrander Avenue. The two west bound lanes carry through to
the LIE. East and west bound through lanes are 11 ft wide and left turn lanes are provided at all
intersections and major driveways. Right turn lanes are provided at some major signalized
intersections. At the intersection of Old Country Road at Roanoke Avenue, a two-lane roundabout is
provided.Except between Northville Turnpike and the vicinity of Oliver Street shoulders are one foot
wide and do not accommodate either pedestrians or bicyclists. Sidewalk is provided along Old Country
Road to accommodate pedestrians,Bicycles are accommodated on parallel roadways to the north and
south of Old Country Road, such as, Middle Road, Pulaski Road/Elton Avenue and New York State
Route 25.
In 2018, Northville Turnpike had an AADT of 6,218 vehicles per day of which 7.84 percent were
classified as heavy vehicles.In 2019 Old Country Road had an AADT of 24,585 vehicles per day of which
218
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
7.60 percent were classified as heavy vehicles. Pictures of Old Country Road between Northville
Turnpike and the LIE are provided in the Supplemental Data Appendix of the TIS.
An evaluation of the geometric capacity of the proposed Truck Route to accommodate the project
related truck traffic was performed.The evaluation used the CADD based AutoTurn computer program
to conduct this examination.The evaluation was conducted to determine whether the wheel paths and
perimeter of the trucks being used would stay within their travel lanes while negotiating a number of
curves in Cox Neck Road/West Mill Road In addition to the roadway itself,key intersections where the
truck route transitions from one roadway to another. Figures showing the results of this analysis are
provided in the Supplemental Data Appendix of the TIS. The results are summarized below.
• Truck Route Phase 1 Excavation:Trucks will enter and exit directly on to West Mill Road from
the proposed temporary haul road. The intersection will be constructed to facilitate
movements at the intersection and the AutoTurn analysis demonstrates this. To the south in
the vicinity of Breakwater Road is an S-curve where Cox Neck Road becomes West Mill Road.
The radius of these curves ais large enough that the site construction traffic will be able to
safely negotiate them.The Truck Route moves onto Sound Avenue at the intersection Sound
Avenue/CR 48 at Cox Neck Road. The AutoTurn analysis indicates that the necessary turns
can be negotiated safely at the intersection. Two other intersections were evaluated: Sound
Avenue at Northville Turnpike and Northville Turnpike at Old Country Road. The analysis
indicated that the project would also be navigating these intersections without any undo
difficulties.
• Truck Route Phase 2 Excavation: During this phase of the excavation, trucks will arrive and
depart directly from the site at the north end of West Mill Road.The trucks will be required to
negotiate the curves east and west of Naugles Road.The curve west of Naugles Road is tighter
than the curves to the south and trucks negotiating this section of the road will not be able to
stay within their travel lane. East of Naugles Road the curve is also tight,and it will be difficult
for the trucks to stay in lane. To overcome this,it is proposed that flaggers be used to control
traffic as truck pass through this area.
An alternate truck route was considered west of Cox Neck Road but is not proposed.This route utilized
Sound Avenue to Aldrich Lane to Old Main Road to Main Road(Route 25)to Old Country Road(CR 58)
to the LIE (1495). Aldrich Lane is a Town of Southold Roadway similar in character to Cox Neck Road
with residential housing and farming fields fronting the road. It is a designated truck route for Route
25,but the physical condition of the roadway is not as substantial as Sound Avenue. Main Road(Route
25 passes through several hamlet centers and the Aquebogue Elementary School.The intersection of
Main Road with Cross River Drive (CR 105) is often congested during weekday peak hours. The
proposed truck route avoids public schools,additional residential neighborhood, hamlet centers and
possible congestion.
Concern has been expressed regarding the potential impact of project trucks on commercial farming
operations along the proposed vehicle route.In particular,operations such as Harbe's Family Farm on
Sound Avenue. These sites are particularly popular in the summer and fall and roadways they front
on can become congested on weekends. To minimize potential impacts site excavation, hauling and
material delivery to the site will be done during weekdays when activities at these facilities are less
impactful. It should be noted that both Route 25 in Southold and Sound Avenue in Southold contain
similar operations and the proposed site truck route has been recommended primarily to avoid hamlet
219
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
centers,an elementary school and typical congestion that occurs in hamlet centers and around traffic
signals.
It should be recognized that trucks are already using the roadways that make up the project's
designated truck route. The trucks that will be used to haul excavated material from the site will be
Peterbilt Tractors with either Frameless East or Mac trailers. The overall length of the truck and trailer
will be 55 feet. The width of the vehicle will be 8 feet,which is the maximum allowed by State law.
Almost all trucks operating in NYS are 8 feet wide including sanitation trucks,fuel oil,landscaping,and
box delivery trucks commonly operating on these roadways. The empty weight of the project haul
vehicles will be 32,500 pounds and the Gross Vehicle weight of the vehicles is anticipated to be 107,000
pounds. The vehicles will have 3 axles on the tractor and 3 axles on the trailer. The front axles will
have 2 tires and the remaining axles will have 4 tires each. The number of axees and tires is designed
to distribute and minimize the impact of the load on the roadways.
Other project-related trucks making material deliveries to the site will be a mix of vehicles. Larger
loads will arrive on flatbed tractor trailer with similar axle and tire configurations to those of the haul
vehicles.Smaller loads may arrive on tractor trailer vehicles with les axels and tires depending on the
weight of the load, while other loads will arrive on single unit flatbed or box trucks. Concrete will
arrive at the site in single unit concrete trucks with a minimum of 3 axles and 10 tires. The concrete
trucks will be no larger than those used for pouring concrete for the construction of single-family
homes and residential pools.
None of the trucks used in the construction of the project will exceed 8 feet in width and none will
exceed the weight limits established by State law for vehicles operating on all roadways within the
State,including West Mill Road and Cox Neck Road.
Impacts on Pedestrian and Bicycle Use
Pedestrian and cyclist observations were made in association with the intersection turning movement
counts collected at the intersections of Cox Neck Road at Westphalia Road, Cox Neck Road/West Mill
Road at Breakwater Road and at West Mill Road at Bayview Avenue/Salah Lane. As with the turning
movement counts,activity was captured and recorded with video and the videos were observed in the
office with the data transcribed into tables giving the number of vehicles, cyclists and pedestrians
observed in 15-minute intervals over the observation period. The observation periods were that same
as for turning movement counts:the weekday AM peak hours of 7:00 to 9:00 am and the weekday pm
peak hours of 4:00 to 6:00 pm and the Saturday peak hours of 11:00 am to 2:00 pm. Further
observations were made in response to Town comments on Tuesday, August 9, 2022 and Saturday,
August 13, 2022 from 6:00 am to 6:00 pm. The supplemental data from August 2022 are included in
the Supplemental Data Appendix.
The cyclist and pedestrian observations indicated very little use of Cox Neck Road/West Mill Road by
either bicycles or pedestrians. During most 15-minute observation periods there were no bicycle or
pedestrian traffic observed. Table 9 (Summary of Pedestrian and Bicycle Count Data,August 2022)in
the TIS presents a daily summary of the pedestrians and bicycles counted at three locations along Cox
Neck Road/West Mill Road. As indicated in Table 9, the number of bicycles and pedestrians is very
low during the weekday. Both bicycle and pedestrian activity increased on Saturdays. On Saturday,
pedestrians crossing Cox Neck Road/West Mill Road accounted for more activity than those walking
220
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
parallel to the road.Bicycle activity was identified as bicycles either traveling through the observation
point or turning onto or from Cox Neck Road/West Mill Road,but not crossing it.
Cox Neck Road/West Mill Road is typical of most local roadways on eastern Long Island. While each
roadway has 50 foot or more rights-of-way, only half is paved,and the remaining undeveloped right-
of-way provides no accommodation for pedestrians.Bicycles must share the existing vehicle lanes with
other users of the road.Cox Neck Road/West Neck Road is approximately 26 feet wide but varies along
its length from 24 to 28 feet.A small portion of West Mill Road east of Naugle's Drive is only 22 feet
wide. Pedestrians and bicycles currently use the roadway with the existing traffic and the three-year
examination of accidents along the roadway did not indicate any involving either pedestrians or
bicycles. Under the completed project up to 13 new trips would be added to this roadway during the
weekday AM and PM peak hours of traffic. This small number of additional vehicle trips will not be
noticeable and will not affect pedestrians or bicycles using the road.
The construction of the proposed project would add additional trips to Cox Neck Road/West Mill Road
for the slightly over one-year construction period. The number of trips would vary over the
construction period and the mix of passenger vehicle/truck trips would also vary. The highest number
of truck trips would occur during the Excavation phase,which includes the entire winter season when
pedestrian and bicycle use is typically lower. During this period,up to 4 trucks per hour would travel
both north bound and south bound to the site. Heavy trucks, such as sanitary trucks and fuel oil
delivery trucks currently use the roadway and there was one accident evidenced in the accident study,
which included five years of data.The addition of four trucks an hour in each direction would not create
any capacity issues or create additional hazards not currently experienced by bicycles and pedestrians
using the road.
The paved surface of the roadway provides at least 22 feet of width. That is sufficient to operate a two-
way roadway with trucks. Motor vehicles operating on any public roadway within New York State
must share the roadway with cyclists and pedestrians using the same road. As such any motor vehicle
would have to give way to pedestrians and cyclists using the road. In most cases they would be able
to move over and pass the slower moving bicycles and pedestrians. In some cases,they may have to
slow and allow a vehicle traveling in the other direction to pass before moving over to pass cyclists or
pedestrian. This is a common occurrence on the relatively narrow eastern Long Island roadways and
is currently occurring on Cox Neck Road/West Mill Road,but with fewer trucks. The minor increase
in truck trips in unlikely to cause any additional problems.
There are between 50 to 60 homes that front on Cox Neck Road/West Mill Road between Sound
Avenue and the site. Some of these homes may generate school age children that would be bused to
school each weekday during the school year from early September through June. These children would
be picked up by school buses in the morning and dropped off in the evening. Due to the longer
workdays of site construction the drop-off would occur prior to construction workers leaving the site.
The drop-offs may encounter a truck removing or bring material to the site. In the morning,the pick-
up of students would likely encounter both construction workers headed to the site and occasional
trucks also headed to the site. The New York State Vehicle and Traffic Law requires all traffic to stop
for school buses with flashing red lights either dropping off or picking up school children. The
professional drivers operating trucks engaged in the construction of the project will adhere to the law
and the pick-up and drop-off of students is expected to be safe.Students waiting to be picked up in the
morning are expected to wait off the road,usually in the driveways to their homes. This is also a safe
221
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
practice not expected to be degraded by the passage of an occasional site bound truck or worker
headed to the site. It should be remembered that similar activities take place every day within the
Town on far busier roadways,such as along Route 25.
Impacts On Road Surface Condition Cox Neck Road/West Mill Road
The Town of Southold Highway Department was contacted to determine the Highway Departments
evaluation of Cox Neck Road/West Mill Road condition. In a letter dated May 18, 2021, the former
Town of Southold Highway Superintendent, Mr. Vincent Orlando, noted that the roadway was in
fair condition. There are some rough locations but for most part fine." Mr. Orlando also noted
recent and planned work on the road:
• 2014-Section of West Mill Road from Miller Road to Bayview North Drive was micro surfaced.
• 2015-Small Section of Cox Neck Road 100 feet north of Meday Avenue was resurfaced.
• 2021-Planned resurfacing with 1-1/2 inches of Type 6 asphalt of Cox Neck Road from North
Road(CR 48)to Bergen Avenue.
It is noted that the 2021 project has been delayed as the Town has determined that drainage work
needs to be done prior to the resurfacing. The Town Highway Department has indicated that
resurfacing should be delayed until the it is determined how the SYC project will be conducted,
preferring to perform the resurfacing after that work is complete.
Heavy trucks introduce more wear on the road structure than passenger vehicles,vans,pickup trucks,
and other smaller, lighter vehicles. Trucks delivering materials to the site or removing excavated
material from the site would all comply with New York State Vehicle and Traffic law regarding the size
of vehicles and the permissible weight of vehicles that may operate on the public roads of the State
including Cox Neck Road/West Mill Road.
Only half the trips to or from the site will be by fully loaded vehicles. Trucks removing material from
the site will return to the site empty and trucks delivering material to the site will leave empty.It was
estimated that during the Phases 1 and 2 - Excavation 40 trucks would leave the site each day and
return to pick up material empty. The 40 trips would occur over the ten-hour workday or 4 trips each
hour. The excavation and removal of material would occur Monday through Friday for a 5-to-6-month
period which includes both the Phase 1 and 2 excavations of the site. Other phases of the construction
would utilize fewer truck trips.
At the proposed temporary haul road to the site thatwould connect to West Mill Road south of Naugle's
Drive a temporary shoulder would be placed along the road north and south of the access to protect
the existing edge of West Mill Road while trucks use that access.A 100-foot-long RCA shoulder would
be placed south of the haul road and a wide radius would be provided at the southeast corner to
facilitate truck turns off north bound West Mill Road. Upon completion of the work,the RCA shoulder
would be removed,and the existing edge of the roadway fully restored.The haul road would remain
post-development to serve as an emergency access route to the site.The layout of the temporary haul
road intersection with west Mill Road is shown in Figure 22 (Haul Road Access)in the TIS.
222
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Cox Neck Road/West Mill Road,particularly the section north of Breakwater Road have generally light
traffic volumes so the combined small vehicle and large vehicle increase in traffic, even with the
additional truck loading from site generated construction, should be tolerated by the existing road
structure. The Applicant is committed to correcting any damage that is done by construction activities.
A survey of the pavement condition would be done prior to the commencement of construction and
the roadway would be resurveyed following the completion of the project. In coordination with Town
of Southold Highway Department, the before and after surveys will be reviewed, and if damage did
occur due to the construction,the appropriate measures will be taken to correct it.
To better understand the potential impact of the project,a study of potential pavement impacts was
conducted by Tri State Planning, Engineering and Land Surveying, P.C. (TSPE). The study examined
the Equivalent Single Axle Loads(ESAL)the current truck route roads were bearing and calculated the
additional ESAL loads the same roadways can be expected to bear during the construction of the
project.State law restricts the weight of any fully loaded truck. However,the weight on no one axle of
the vehicle may exceed 18,000 pounds. Heavy vehicles or those expected to carry heavy loads are
designed with additional axles and with all but the steering axle having four, rather than two tires.
Additional tires and axles spread the load and lessen the weight on each tire.
Traffic loads,along with environment,damage pavement over time.The simplest pavement structural
model assert that each individual load inflicts a certain amount of unrecoverable damage.This damage
is cumulative over the life of the pavement,and when it reaches some maximum value,the pavement
is considered to have reached the end of its service life. Through study and experimentation,
procedures have been developed by the Federal Highway Administration(FHWA)and the NYSDOT to
evaluate the ability of a pavement design to withstand the loads that traffic imposes on pavement.ESAL
are calculated using traffic including the roadway's Annual Average Daily Traffic and the results of
vehicle classification studies that determine the percentage of heavy vehicles utilizing the roadway.
Table 10 (ESAL for Proposed Truck Route) presents the calculated ESAL for No Build Condition
without the proposed construction and the ESAL for each roadway with the addition of site generated
trucks due to the construction of the project
The ESAL loads are calculated based on a 5-year pavement life in order to take a conservative
approach. Actual pavement life is typically calculated as 20 years.The comparison of the impact of the
projected truck traffic is minimal on all the proposed truck routes except for West Mill Road which
showed an increase in ESAL loading with a 11.14 percent increase and Bergen Avenue,if it is used as
an alternative the truck route (See later Section: Alternate Routing of Haul Material). While the
increased ESAL loadings by percentage are significant,the significance is due to the existing light traffic
volumes found on the roads. The number of ESAL loads projected to occur on West Mill Road are
approximately one tenth of those projected to occur on Cox Neck Road. TSPE,as part of the pavement
evaluation,also examined the ability of Town of Southold standard pavement section with 1.5 inches
of top,2.5 inches of binder and 4.0 inches of stone or recycled concrete base will support the expected
loads from the project truck traffic. The TSPE Pavement Evaluation Report can be found in the
Supplemental Data Appendix of the TIS.
Heavy Vehicle Traffic Induced Vibrations
Heavy vehicles operating along the highway can induce vibrations, but the extent that this occurs is
dependent on the surface condition of the roadway itself.A heavy vehicle riding on a smooth surface
223
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
would generate little vibration, while the same vehicle riding over a rough surface will generate
vibrations. Those vibrations can be transmitted in the existing ground material to structures in
proximity. Solid and densely packed materials transmit the vibration better then looser more granular
material. The sandy soil that Cox Neck Road/West Mill Road lies upon is not conducive to the
transmission of vibrations created by trucks.
To examine the potential of trucks to create vibrations that could damage existing structures adjacent
to the roadway, Sound Sense performed a vibration study. The study entitled Vibration Report:
Vibration Conditions and Expected Impacts: Strong's Yacht Center-5780 West Mill Road- Mattituck,
NY is included in Appendix R of this DEIS and a summary follows.
The Vibration Report examined both the potential impact from vibration due to truck traffic on the
designated truck route and those from construction activity on site.The Vibration Report identified all
the potential significant historical structures along the proposed truck route and determined their
distance from the truck route roadway. Anticipated vibration levels were determined for each
structure utilizing methodology and data from the Federal Transportation Authority's 2018 Transit
Noise and Vibration Impact Assessment Manual ("FTA Guidelines") and the New Hampshire
Department of Transportation' 2012 Ground Vibrations Emanating from Construction Equipment
("New Hampshire Guidelines"). Using these guidelines, it was determined that historic structures
needed to be more than 17 feet from the truck to be safe from damage. The minimum distance of
residential properties to be safe from potential damage was 11 feet. The minimum distance of
residential properties to recommended indoor vibrations was 79 feet.
In order to confirm that the calculations were valid, monitoring was conducted at four locations.
Locations 1 and 2 were measured at the Mattituck Creek Tide Mill(Old Mill Restaurant)and the Frame
Water Tower, respectively. As these locations are connected to the road surface, the accelerometer
was adhered to concrete at the foundation of the structures during the readings collected. Location 3
was as close to the southern property line of the site as possible.Location 4 was located at the entrance
to the Mill Road Preserve,at 25 feet from the roadway to match reference data presented in the FTA
Guidelines.At Locations 3 and 4,the accelerometer was attached to a 6"stake driven into the ground.
After monitoring existing traffic, a fully loaded 30 cubic yard truck was driven past the each of the
study sites. All the study data indicated that the vibrations recorded at the time the study truck past
each of structures and the device located 25 feet from the road were well below those that would cause
damage. In addition,the nature of the soil did dampen the vibration impacts such that it was found
that the distance trucks needed to be from historic structures and residential structures in order to
not damage those structures was two feet. The minimum distance the trucks need to be from
structures to meet indoor vibration levels is 29 feet. It was also noted that existing truck traffic often
generated similar readings to those found when the test truck was driven by. In summary, the
Vibration Study found that the truck traffic generated by construction of would not cause damage to
either potentially historic structures along the truck route nor would the trucks cause damage to
residential structures either. Vibrations generated by trucks would below recommend indoor
vibration levels in all structures.
As has been stated earlier, trucks traveling on a smooth roadway would not create substantial
vibrations. A pothole or roughness due to alligator cracking or some other pavement roughness would
increase the likelihood that vibrations will be created. The Applicant would commit to quickly
224
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
repairing any potholes that appear in the roadway during the construction activity to minimize the
potential for vibrations that could affect existing structures.
Additional Considerations
As required by the Amended Final Scope, a discussion regarding potentially using barges as an
alternative for mitigating impacts association with transporting materials off-site during construction
was to be considered. The feasibility of utilizing barges is discussed in Section 5.2 of this DEIS and
associated documentation is included in Appendix U of this DEIS.
It is noted that an alternative material mitigation plan has been evaluated to reduce the volume of
material to be removed from the subject property by placing approximately 13,500 cy of material on
the R-80-zoned parcel. This alternative material mitigation plan is discussed in Section 5.7 of this DEIS.
An Alternate Truck Route has been developed that would reduce the impact of trucks hauling material
from the site. This alternative split arriving empty trucks from departing trucks carrying excavated
material on the south segment of Cox Neck Road. Arriving trucks would follow the original Truck
Route plan,making a left turn from east bound Sound Avenue onto north bound Cox Neck Road/West
Mill Road. Departing trucks hauling material from the site would utilize West Mill Road/Cox Neck
Road and then turn west onto Bergen Avenue to Sound Avenue. This alternative routing plan is
discussed in Section 5.8 of the DEIS.
Potential Traffic Calming Measures During Construction
Prior to the commencement of project construction,it is recommended that Cox Neck Road/West Mill
Road be restriped with shoulder edge lines defining the edge of 10-foot travel lanes. The edge lines
will better define the road adding safety. The ten-foot travel lanes defined by the edge lines will
provide the motorist with the appearance of narrower roadway while providing and area for
pedestrians. High grass and any brush should be mowed and remove providing a walkable surface
where feasible. It is suggested that, during the construction period,the speed limit be reduced along
Cox Neck Road/West Mill Road. The current speed limit is 35 miles per hour and could be reduced to
30 or even 25 miles per hour for the duration of the construction activity. The speed limit change
would require approval of the NYSDOT or the Southold Town Board depending on the Town's ability
to set speed limits.
Conclusions
As indicated in the TIS, the adjacent highway and street system will be able to accommodate the
proposed project. Although there would be a minimal increase in traffic from the development of the
project,the development of the site,as proposed,will not cause a significant negative impact on traffic
conditions. The following points should be recognized:
1. The proposed access plan has been designed to adequately provide for the projected traffic
entering and exiting the access driveway to assure the public safety and to minimize traffic
congestion.
225
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
2. The additional site-generated traffic resulting from the proposed project can be expected to
add only 11 entering and 2 exiting trips during the weekday morning peak hour. During the
weekday P.M. peak hour, the site-generated volumes are anticipated to be 11 exiting and 2
entering vehicle trips. These trips will be generated by new employees at the site arriving in
the morning and departing in the evening. Other random trips will occur during the day,but
the number of these trips will be low and in the range of none to one or two in an hour.
3. The intersection capacity analyses conducted to measure the impact of the new site-generated
traffic on the surrounding street and highway network indicate the new traffic can be
accommodated with negligible traffic impact.
4. The amount of construction traffic the projectwill generate during each phase of construction
was determined and the potential impacts examined utilizing intersection capacity analyses.
The intersection capacity analyses indicated that the construction generated traffic would
have minimal impact on the capacity of the road network.
5. Five years of accident data were obtained or Cox Neck Road/West Mill Road and the
intersection of Cox Neck Road at Sound Avenue/West Mill Road. There are no demonstrative
conditions along the road that would indicate that the project volumes would increase the
potential for additional accidents. Accidents occurring at the intersection of Cox Neck Road at
Sound Avenue/North Road were typical of those occurring a similar signalized intersections
with similar traffic volumes.
6. Counts of pedestrian and bicycle usage along Cox Neck Road/Mill Road indicated only minimal
usage by pedestrians and bicycles. The accident study revealed one accident involving
bicycles or pedestrians. Despite the relative narrowness of the road the small numbers of
additional vehicles the project will generate during construction and after completion should
not increase the hazards to bicycles and pedestrians also using the road. Motor vehicles
operating on any public roadway within New York State must share the roadway with bicycles
and pedestrians using the same road. As such any motor vehicle will have to give way to
pedestrians and bicyclists using the road. In most cases,they will be able to move over and
pass the slower moving bicycles and pedestrians. In some cases,they may have to slow and
allow a vehicle traveling in the other direction to pass before moving over to pass the bicycle
or pedestrian. This is a common occurrence on the relatively narrow eastern Long Island
roadways and is currently occurring on Cox Neck Road/West Mill Road,but with fewer trucks.
The minor increase in truck trips in unlikely to cause any additional problems.
7. Cox Neck Road/West Mill Road, particularly the section north of Breakwater Road have
generally light traffic volumes so the combined small vehicle and large vehicle traffic even
with the additional truck loading from site generated construction should be tolerated by the
existing road structure. The Applicant is committed to correcting any damage that is done by
construction activities. A survey of the pavement condition will be done prior to the
commencement of construction and the roadway will be resurveyed following the completion
of the project. In coordination with the Town of Southold Highway Department, the before
and after surveys will be reviewed, and if damage did occur due to the construction, the
appropriate measures will be taken to correct it. Additionally,at the request of the Town,SYC
226
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
would be willing to sign a corporate guarantee for the repair of any road damages to pre-
development condition.
8. As discussed in Section 5.4 of this DEIS, an alternative project has been developed that
includes the construction of two boat storage buildings of 52,500 SF and 49,000 SF to support
the smaller boat storage operations of SYC, along with elevating the roof heights of three
existing buildings to accommodate larger vessels.As such,this alternative would still require
11 new employees working Monday thru Friday as does the proposed action. The alternative
will generate the same amount of traffic as does the proposed action during the hours of
analysis.The primary difference with respect to traffic impacts once the project is completed,
is the new buildings under the alternative will be used for the storage of significantly smaller
boats then would the buildings constructed under the proposed action. The proposed action
would store boats of sixty feet or more, while the buildings constructed under alternative
would store up to 300 smaller boats. Boats more than 60 feet cannot be trailered to the site
and must arrive via the water. Smaller boats, as are anticipated to be stored in the project
alternative,can readily be transported to and from the site by trailer. It is anticipated the half
the smaller boats(i.e., 150)stored at the site would arrive and depart by trailer,which would
have a greater traffic impact than the proposed action.
9. The proposed Site Plan which provides 57 total parking spaces with 4 handicapped spaces
will adequately meet the parking needs of SYC.All site parking is accessed from a centralized
access aisle located between the bulkhead along Mattituck Inlet and the buildings. The aisle
has a minimum width of 24 feet and is often more generous than that. The site circulation
plan is adequate for the intended purpose.
10. The construction of the project will generate a substantial amount of truck traffic. A
designated route has been proposed to carry the increased truck traffic for the construction
period. The designated truck route utilizes the Long Island Expressway (I-495) to County
Road 58(Old Country Road)to County Road 43(Northville Turnpike)to Sound Avenue to Cox
Neck Road to West Mill Road. The route is within the capacity of the roadways to carry the
truck traffic.
11. There will be no offsite staging areas utilized during any phase of the project's construction.
All construction material will be delivered to the site directly from suppliers via the designated
truck route. Excavated material from the site will be transported directly to the material
handler via the designated truck route. Construction materials and excavated materials
removed from the site will not be transported on weekends. No roadways other than
designated truck route will be used for transportation of project materials.
12. The potential of the increased truck traffic resulting from the project's construction to cause
vibrations adjacent to the roadway was evaluated. It was determined that the project trucks
would not cause vibrations that would impact adjacent historical structures or residential
homes,
13. An alternative was evaluated which would have hauled the material excavated from the site
via barges brought to the SYC. That alternative proved unfeasible. The Mattituck Inlet did not
227
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
have sufficient depth to allow the barges to operate. In addition, the inlet channel has
significant curvature that further prohibits navigation of the waterway by barges.
14. A series of potential mitigation measures have been suggested, including retaining
approximately 10 percent of the required excavation material on an unused residentially
zoned portion of the site,monitoring and repairing damage to Cox Neck Road/West Mill Road
during the construction period,and making traffic control improvement to the roadways.
3.3.3 Proposed Mitigation
The traffic study concludes that the surrounding transportation network will be able to accommodate
increased traffic volumes during construction and post-development, with no significant adverse traffic
impacts,based upon the following mitigation measures:
• Appropriate signage for construction access on West Mill Road will be installed for proper
wayfinding.
• An on-site guard booth will be placed along the proposed haul road (for the Phase 1 Excavation)
and on the SYC property(for Phase 2 excavation and construction phases). The purpose of such
booth is to house an on-site staff person who will direct incoming construction-related traffic and
to inspect vehicles upon exiting.
• SYC will mandate that all construction-related trucks be Tier 4 certified by U.S.EPA standards and
Jake Brakes would be turned off.
• Asphalt binder will be installed on the shoulder of Mill Road to prevent damage from tag axles.
• To minimize impacts to the surrounding community,truck trips for excavation will be limited to
7:00 am to 5:00 pm five days per week(Monday to Friday)and truck trips for construction will be
limited to 7:00 am to 7:00 pm six days per week(Monday to Saturday)in accordance with§180-6
Prevention of Noise-Standards of the Town Code.
• The construction company engaged to complete the work has committed to utilize company multi-
occupant vehicles to transport many of the construction workers to the site.
• The Applicant is committed to correcting any damage that is done by construction activities. A
survey of the pavement condition will be done prior to the commencement of construction and
the roadway will be resurveyed following the completion of the project. The Applicant will commit
to quickly repairing any potholes that appear in the roadway during the construction activity to
minimize the potential for vibrations that could affect existing structures. In coordination with
the Town of Southold Highway Department,the before and after surveys will be reviewed,and if
damage did occur due to the construction, the appropriate measures will be taken to correct it.
Additionally, at the request of the Town, SYC would be willing to sign a corporate guarantee for
the repair of any road damages to pre-development condition.
228
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Prior to the commencement of project construction,it is recommended that Cox Neck Road/West
Mill Road be restriped with shoulder edge lines defining the edge of 10-foot travel lanes. The edge
lines will better define the road adding safety. The ten-foot travel lanes defined by the edge lines
will provide the motorist with the appearance of narrower roadway while providing and area for
pedestrians. High grass and any brush should be mowed and remove providing a walkable surface
where feasible.
• All trucks associated with the construction of the proposed action will be limited to traveling at 30
mph on Cox Neck Road/West Mill Road and all neighboring roads. The posted speed limit is 35
mph.
• During the construction period, Cox Neck Road/West Mill Road will be monitored daily to detect
any rough surfaces or potholes that develop. The roadway imperfections will be corrected by
forces employed by the applicant.
• Flaggers will be uses for maintenance and protection of Traffic at locations where severe curves
in the truck route or at intersections where turns are being made by project trucks that may
require crossing of the yellow double barrier lines.
3.4 Aesthetic Resources
3.4.1 Existing Conditions
Aesthetic Resources
To evaluate the existing viewshed of the subject property and the surrounding area,site and area visits
were conducted by PWGC in September 2020, March 2021, April 2021, and June 2021 with
photographs taken on September 22,2020,March 10,2021,March 25,2021,April 28,2021,and June
16, 2021. Photographs taken during these site visits, with corresponding dates, are included in
Appendix G.
Subject Property
Access to the subject property is from West Mill Road; however,the location at the eastern terminus
of the road at Mattituck Creek and topography of this area limits the view of the SYC from the public
roadway (see Photograph No. 1). As explained in Section 3.1.1 of this DEIS, the subject property is
currently developed with a full-service marina with associated docks, support buildings, and a sales
office. Five single-level accessory buildings with elevated roofs situated parallel to the waterfront
along Mattituck Creek support the marina operation(see Photograph No.2).At the northern extent of
the marina is a two-story frame building with associated surface parking(see Photograph No.3). The
eastern portion of the marina operations includes all dock slips for boats with utility connections and
fuel stations (see Photograph Nos. 4 through 6). Within the marina operations are also dry-docked
boats and various equipment to support the movement and maintenance of the boats(see Photograph
Nos. 7 through 9). At the southern extent of the marina is a wooded area and ancillary boat storage
along with dock slips for commercial fishing boats, CCE FLUPSY units, and NYSDEC-regulated tidal
229
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
wetlands beyond the bulkhead (see Photograph Nos. 11 and 12). There is also a one-story
single-family residence accessed via West Mill Road where the marina manager resides (see
Photograph Nos. 13 through 15).
As described in Section 3.1.1 of this DEIS,there is undeveloped forested land on the western portion
of the subject property,to the adjacent west of the operational marina,with steep slopes. Currently,
the elevation in this area rises abruptly from 10± feet AMSL to 40± feet AMSL and then gradually
increases to 50±feet AMSL at the western boundary of the subject property along West Mill Road(see
Photograph Nos. 16 through 23). The existing forested land expands to the west for a distance of
approximately 890 feet, comprising the 16.5±-acre R-80-zoned portion of the subject property.
Approximately 11.62± acres of the 16.46±-acre M-II zoned portion of the subject property is
undeveloped forested land.
Generally,the aesthetic character of the subject property is defined by its marina use along Mattituck
Creek and its largely forested area(Coastal Oak-Beech Forest/Successional Southern Hardwood) (i.e.,
17.27±acres)to the west of the existing marina.
Surrounding Area
The aesthetic character of the area surrounding the subject property can be generally described as
having flat topography along Mattituck Creek with steep heavily vegetated slopes on the western side
of Mattituck Creek and relatively flat topography on the eastern side of Mattituck Creek (see
Photograph Nos. 28 and 36 through 38). The Town's LWRP indicates the majority of the west side of
Mattituck Creek is steeply sloped with residences at slope edges in heavily wooded areas to obscure
their view from the water(Section II-J Reach 1-3). The western bank of Mattituck Creek,north of the
subject property,includes commercial,public and private maritime uses,and one-to-two story single-
family residences (See Photograph Nos. 26 through 28). There is a vacant restaurant immediately
north of the subject property in addition to a two-story single-family residence (see Photograph Nos.
26 and 27). Along West Mill Road, north of the subject property at Mattituck Creek, is the Mattituck
Commercial Dock (see Photograph No. 28) and the Mattituck Fishing station with approximately 40
recreational fishing boats. Further north, on the western bank of Mattituck Creek, are single-family
residences and the NYSDEC Mattituck Creek Waterway Access Site (see Photograph Nos. 29 and 30).
The eastern bank of Mattituck Creek, north of the subject property, includes private maritime uses
with one-to-two story single-family residences with some docks leading to Mattituck Creek (see
Photograph No. 36).To the east and south of the subject property are one-to-two-story single-family
residences well-screened by vegetation along the banks of Mattituck Creek(see Photographs No. 37
and 38).
Immediately adjacent to the south of Building 1 on the subject property is a private two-story
residence (5106 West Mill Road) (see Photograph No. 15). South of the subject property is a large
lattice transmission tower with transmission lines traveling west to east across Mattituck Creek and
extends above the existing trees in the surrounding viewshed (see Photograph No. 32). South of the
subject property is Mill Road Preserve, a Town-owned walking trail through mature forest,and one-
to-two-story single-family residences (see Photograph No.32).
Along West Mill Road, to the immediate west of the subject property, are agricultural uses (see
Photograph No. 39). To the southwest of the subject property along West Mill Road, are one-to-two
230
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
story single-family residences (see Photograph No. 40). The agricultural lands and single-family
residences are heavily screened by the existing vegetation and are setback from West Mill Road.
Overall, views of the existing marina operations are well-screened by dense vegetation to the west.
The forested undeveloped portion of the subject property and steep slopes obscure views of the
marina operations from the west. However, from select views to the north, south, and east of the
subject site,portions of the existing marina operations are visible. A description of the views follows:
• North: From the vacant Old Mill Restaurant and single-family residence on West Mill Road
immediately north of the subject property entrance, Buildings 2 and 5 at SYC are visible (see
Photograph No.27).
• South:Two single-family residences at the northern terminus of North Drive have obstructed
views of Buildings 7 and 8 at SYC (see Photograph Nos 18 and 34).The western undeveloped
area of the subject property is visible from the southernmost trail of the Mill Road Preserve
(see Photograph No.31).
• East: The entire marina operation is visible from private residences on the east side of
Mattituck Creek (see Photograph Nos. 24 and 25). However,views onto the interior portion
of the upland area are obscured by existing forested areas and steep slopes.
Existing Viewshed/Zone of Visual Influence
Photographs from various vantage points were taken to illustrate the existing viewshed from select
properties adjacent to and within the subject property's zone of visual influence (ZVI),as required by
the Amended Final Scope. A ZVI with a radius of 1,000 feet from the subject property was established
to identify locations where the subject property could be visible.These viewpoints were then rendered
with the proposed improvements to illustrate post-development visual changes. All viewpoints under
existing conditions and post-development,are included in Appendix Q of this DEIS. A description of
the existing conditions follows,and an analysis of the post-development changes is included in Section
3.4.2 of this DEIS.
• Viewpoint 1 (Existing Conditions) - Representative view from private residences on
east side of Mattituck Creek towards SYC,facing southwest
This viewpoint depicts the existing view of SYC from private residences on the east side of
Mattituck Creek. From this viewpoint, Mattituck Creek, select dock slips, the CCE FLUPSY
units, and the bulkhead are visible. To the west of the bulkhead, the southeast corner of
Building 7 and northeast corner of Building 8 are also visible.Upland of Buildings 7 and 8,the
woodland area is visible as well as a large lattice tower with transmission lines traveling west
to east across Mattituck Creek.
• Viewpoint 2 (Existing Conditions) -View facing north from North Drive (located to the
south of the subject property)
231
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
This viewpoint depicts the views from North Drive looking north towards SYC. From this
viewpoint,the woodlands on the upland portion of the subject property are visible and largely
screens the existing SYC operational area.
• Viewpoint 3 (Existing Conditions) -View from south of SYC, facing north on Mattituck
Creek towards SYC
This viewpoint depicts the views of SYC from the south. From this viewpoint,Mattituck Creek,
select dock slips and the bulkhead are visible.To the west of the bulkhead,the eastern facade
of Building 8 is visible along with the southern portion of Building 7. Upland of Buildings 7
and 8,the woodland portion of the subject property is visible.
• Viewpoint 4 (Existing Conditions) - View from most southern trail on Mill Road
Preserve towards SYC
This viewpoint depicts the views from the most southern trail on Mill Road Preserve towards
SYC. From this viewpoint,the woodland portion of the subject property is visible.
• Viewpoint 5(Existing Conditions)-View from 5106 West Mill Road towards SYC,facing
south
This viewpoint depicts the view of SYC from 5106 West Mill Road. From this viewpoint,the
woodland potion of the subject property and the roofs of Buildings 7 and 8 are visible.
• Viewpoint 6 (Existing Conditions) - View facing southwest from upland area of SYC
property towards SYC
This viewpoint depicts the views facing southwest from the upland area of SYC property
towards SYC. From this viewpoint,the existing woodlands are visible.
• Viewpoint 7 (Existing Conditions) - View facing southeast from upland area of SYC
property towards SYC
This viewpoint depicts views facing southeast from the upland area of the subject property.
From this viewpoint, the edge of the upland slope is visible with some trees present with
obscured views of Mattituck Creek,and the topography decreases to Building 8.The existing
SYC operations are obscured by the change in elevation and Building 8. During leaf-off
conditions, the residence on the east side of North Drive is visible.The eastern shoreline of
Mattituck Creek is also visible with some residences along the waterfront.
• Viewpoint 8 (Existing Conditions) -View from 4255 West Mill Road (Robinson-D'Aires
House, Eastview Farm with support buildings, Society for the Preservation of Long
Island Antiquities[(SPLIA]MK-18 towards SYC
232
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
This viewpoint depicts views from 4255 West Mill Road towards SYC. From this location,the
existing SYC operations are not visible due to changes in elevation and forested areas to the
south obstructing the views.
• Viewpoint 9 (Existing Conditions) - View from 5775 West Mill Road (Old Mill
Restaurant,SPLIA MK-19)towards SYC
This viewpoint depicts views from 5775 West Mill Road (Old Mill Restaurant) towards SYC.
From this viewpoint,the main entrance to SYC and Building 2 are visible.However,the layout
of SYC is such that Buildings 3 and 4 are not visible from this viewpoint as the buildings are
set further west in an area obscured by tree cover. From this viewpoint, Building 2 obscures
views of Buildings 5 through8 as the property curves to the southwest around steep slopes
and densely forested areas.
• Viewpoint 10(Existing Conditions)-View from 3380 West Mill Road(Old Water Tower,
SPLIA-MK-20)towards SYC
This viewpoint depicts views from 3380 West Mill Road (Old Water Tower) towards SYC.
From this viewpoint,the existing SYC operations are not visible due to changes in elevation
and forested areas to the east obstructing the views.
• Viewpoints 11A,11B and 11C(Existing Conditions)-Representative views from a kayak
of typical yachts(44-feet,68-feet,and 95-feet)at Inlet Entrance near Breakwater
Viewpoints 11A, 1113, and 11C were taken from a kayak to capture current views of typical
yachts of varying lengths(i.e.,44-feet,68-feet,and 95-feet)at Inlet Entrance near Breakwater.
The photographs provided were taken by Jeff Strong on a kayak in July 2021.
• Viewpoint 12 (Existing Conditions) - Representative view from a kayak of a 95-foot
yacht adjacent to the Old Mill Restaurant at the narrowest part of the Inlet
Viewpoint 12 was taken from a kayak of a 95-foot yacht adjacent to the Old Mill Restaurant at
the narrowest part of the Inlet. The photograph was taken by Jeff Strong on a kayak in July
2021.
• Viewpoint 13 (Existing Conditions) - Representative view from a kayak of a 95-foot
yacht in front of SYC dockage and buildings
Viewpoint 13 was taken from a kayak of a 95-foot yacht in front of SYC dockage and buildings.
Similar to Photographs 11A through11C and 12,the photograph was taken by Jeff Strong on a
kayak in July 2 02 1.
233
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.4.2 Potential Impacts
Proposed Landscaping
As presented in Sections 1.2.4 and 2.4.2,site landscaping and retaining wall plantings are proposed.The
landscaping schedule is broken up into four segments: upland (beyond top of the retaining wall),
surrounding site at or above building elevation,retaining wall west,and retaining wall north.
The upland area beyond the top of the retaining wall includes plantings of Pitch Pine (Pinus rigida) at
least four-to-five feet tall to screen the proposed buildings from surrounding views to the south,
Lowbush Blueberry (Vaccinium angustifolium), and Switchgrass (Panicum virgatum). The proposed
plantings in the adjacent area at or above building elevation south, east, and west of the concrete
retaining wall for the two liquid propane tanks that would be located south of Building 9 would include
Pitch Pine (Pinus rigida) and Lowbush blueberry(Vaccinium angustifolium).The northern and western
portions of the retaining wall would include Shadbush (Amelanchier canadensis), Bayberry (Myrica
pensylvanica), Staghorn Shadbush (Rhus typhina) and the following varieties of groundcover are also
proposed: Virginia Creeper (Parthenocissus quinquefolia), Switchgrass (Panicum virgatum), Common
Milkweed(Asciepiassyriaca),and Groundsel Bush(Baccharis halimfolia). A small concrete retaining wall
would be located south of Building 9 closer to Building 8 where two of the LP aboveground storage tanks
are proposed. Portions of the Evergreen concrete retaining wall would be topsoil-filled to allow for
seeding and use by bird species to promote growth in the trays that are built into the wall to create a
"green"wall over a period of two-to-three years. Overall,the proposed landscape plan would improve
species diversity on the subject property and softens the view of the modified slope from the east.
Proposed Lighting
The proposed site lighting would consist of light poles and building fixtures. Specifically,as indicated on
the Details sheet (see Appendix C), the proposed action includes three 14-foot lamp poles with LED
fixtures (two at the above ground tanks between Buildings 7 and 10 and one south of Building 8 at the
retaining wall); 38 wall scones at 14-feet above grade around the eastern and southern sides of Building
10 and the northern,eastern,and southern sides of Building 9,and western sides of Buildings 7 and 8;
and 13 wall lights along the northern and western sides of Building 10 and along the western side of
Building 9. Each lamp pole would include a shielded fixture such that all light would be directed
downwards with no upward glare. To mitigate light trespass and glare, all lighting would be shielded
and directed downwards at an intensity compliant with Chapter 172 of the Town Code (Outdoor
Lighting). The proposed lighting would comply with the lighting standards set forth in §172-5, as
evaluated in Section 3.1.2 of this DEIS,and would be subject to the review and approval of the Town of
Southold Building Department.Additionally,the proposed site lighting has been designed to illuminate
the subject property in an efficient manner that would minimize nuisances from light intensity,glare and
light trespass.
Viewpoints
Upon implementation of the proposed action,the visual setting and aesthetic character of the site would
remain as a maritime use with full-service marina and yacht operation with accessory buildings. The
two proposed boat storage buildings would be situated to the west of Buildings 7 and 8, at a slightly
234
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
highecRFE. Specifically,the proposed buildings would be situated at Elevation 10 feet AMSL,which is
two(2)feet above the FFE's for Buildings 7 and 8(i.e.,situated at Elevation 8±feet AMSL). Based oothe
architectural elevations provided by the architect, Jeffrey I. 0udoc P.8, P.C. (oae Appendix O of this
DEIS),the proposed height of the buildings would be 39 feet-3 inches from grade to the eave and 45 feet-
8incbmyhronzgcadototbotopo[cidgo. The mean roof height io42 [eot'6inches. With a proposed 10
foot AK4SL HE for both buildings, the top (mean height between euve and ridge) elevation of the
buildings would bmG5.67 feet A3D4L
As noted in the 2020 Comprehensive Plan (page 32),a prominent identifying feature for the hamlet of
Mattituck is Mattituck Creek which provides public waterfront access opportunities that are important
to the Town as a maritime center.It is important to note SYC does not provide public waterfront access
and none is proposed as part of the proposed action. The proposed action supports the importance of
and reliance upon the maritime industry in the Town by providing overwiuteriugstorage for larger
vessels.Additional details on the proposed action's consistency with community character is included in
Section J.5o[this DG|S.
As discussed in Section 3.5.2 of this DEIS,due to site topography,the proposed action requires soil and
vegetation removal that would alter the Urww |iuw by setting it buck an additional SOO± feet from the
current condition. 3upp\wnowuto| plantings along the retaining wall are proposed to create u ''sou|od
edge"o[vegetation. As illustrated on Renderings A'1,A'3,A'5,and A'13 (and evaluated further bo|ow),
the existing visual setting of the 3YC operations at the vvuinr's odAo with woodland landward in the
background vvou|J be maintained. The supplemental plantings would retain the existing natural and
visual features nt the property.
As presented in Section 3.4.1 of this DEIS, 13 viewsheds were assessed for the existing visual setting of
SYC.To understand the potential visual impact of the proposed action on surrounding sensitive visual
receptors, the same viewpoints were assessed with post-development structures rendered. The %Vl
considers existing surrounding development and existing operations at the subject property as well as
changes in topography that could impact the proposed action's visibility.
° Rendering A'1: Post Development Viewpoint 1 ' Representative view from prhmkw
residences oo east side ofMatdtmck Creek towards 8YC,facing southwest
As shown in Photograph No. 1 (Appendix 0)' the current view of the subject property isof
Mattituck Creek,limited operations in the southeast portion of the subject property,bulkhead,
and portions uy the woodland upland area.
As depicted on Rendering A-1 in Appendix Q,the post-development views would be similar to
existing conditions.Mattituck Creek,the more southern dock slips,CCE FLUPSY units,and the
bulkhead would remain visible.Buildings 6,7,and 8 would obscure views onto the proposed
buildings.Beyond the existing buildings,the upland woodland area is visible as well as a large
lattice tower with transmission lines traveling west 10 east across Mattituck Creek. Changes
to the visual setting include the introduction of a portion of the roof and top of the garage door
of Building 10.Building 9 would not be visible.The impact to the visual setting of the subject
property would be minimal.
235
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Rendering A-2: Post-Development Viewpoint 2 - View facing north from North Drive
single-family residential area south of the subject property
As shown in Photograph No.2 (Appendix Q),the current view of the subject property is of the
woodland upland area and views of limited operations in the southeast portion of the subject
property are obscured by the forested area and the topography.
As depicted on Rendering A-2 in Appendix Q, the post-development views would consist of
the forested area to be retained south of the proposed action. Operations visible would
include the southern facade of Building 9. Similar to the proposed action, views of existing
Buildings 7 and 8 would remain visible.
• Rendering A-3: Post-Development Viewpoint 3 - View from south of SYC, facing north
on Mattituck Creek towards SYC
As shown in Photograph No. 3 (Appendix Q), the current view of the subject property is of
limited operations in the southeast portion of the subject property and Mattituck Creek.
As depicted on Rendering A-3 in Appendix Q,the post-development views would be similar to
existing conditions.The select docks and bulkhead would remain visible as well as the eastern
facade of Building 8 and southern portion of Building 7.Most of Buildings 9 and 10 would be
obscured from view. However, the top of the eave for Building 9 would be visible to the
southwest and most of the eastern facade and eave of Building 10 would be visible to the
northwest. Furthermore, the northeastern corner of the Evergreen concrete retaining wall
would be visible between Buildings 7 and 10.The impact to the visual setting of the subject
property would be minimal.
• Rendering A-4: Post-Development Viewpoint 4-View from most southern trail on Mill
Road Preserve towards SYC
As shown in Photograph No.4(Appendix Q),the current view of the subject property is of the
undeveloped upland heavily forested area. The marina operations and Mattituck Creek are
obscured by the forested area and the topography.
As depicted on Rendering A-4 in Appendix Q, the post-development views would consist of
the woodland area of the subject property that would not be disturbed and a portion of the
western and southern facades and roof of Building 9,the roof and a portion of the southern
facade of Building 10,and a portion of the western facade of existing Building 8.The cover in
the setback area would remain.The impact to the visual setting of the subject property would
be minimal.
• Rendering A-5: Post-Development Viewpoint 5 - View from 5106 West Mill Road
towards SYC,facing south
As shown in Photograph No. 5 (Appendix Q),the current view of the subject property is the
roofs of Buildings 7 and 8,and Mattituck Creek beyond.
236
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As depicted on Rendering A-5 in Appendix Q,the post-development views would be similar to
existing conditions. Views of portions of the roofs of Buildings 7 and 8 would remain. All
woodland area between the property line and edge of disturbance would remain. However,
the view southwest would include the roof of Building 10 and a portion of the northern facade
of the building.Additionally,the top of the vegetation on the northern portion of the Evergreen
concrete retaining wall would aid in obscuring views onto the proposed buildings. Overall,
the viewshed change is not significant.
• Rendering A-6: Post-Development Viewpoint 6 - View facing southwest from upland
area of SYC property towards SYC
As shown in Photograph No.6(Appendix Q),the current view of the subject property is of the
existing slope and woodland area.
As depicted on Rendering A-6 in Appendix Q, the post-development views would consist of
the eastern facades of Buildings 9 and 10 as well as the stone blend gravel area. The slope
would no longer exist,and views of the woodland area would only be observed south of the
proposed action.
• Rendering A-7: Post-Development Viewpoint 7 - View facing southeast from upland
area of SYC property towards SYC
As shown in Photograph No.7 (Appendix Q),the current view of the subject property is of the
edge of the upland slope and obscured views onto the roof of Building 8 with Mattituck Creek
beyond.
As depicted on Rendering A-7 in Appendix Q the post-development views would consist of
the limit of disturbance and vegetation on the top of the Evergreen concrete retaining wall
would be visible with the roofs of Buildings 9 and 10. The roof of Building 8 would remain
visible as would views of Mattituck Creek further east.
• Post-Development Viewpoint 8 - View from 4255 West Mill Road (Robinson-D'Aires
House, Eastview Farm with support buildings, Society for the Preservation of Long
Island Antiquities[SPLIA]MK-18)towards SYC
As shown in Photograph No. 8 (see Appendix Q),the subject property is not visible from this
viewpoint under existing conditions due to changes in topography and would not be visible
under the proposed conditions. As such,a post-development rendering was not prepared.
• Post-Development Viewpoint 9-View from 5775 West Mill Road(Old Mill Restaurant,
SPLIA MK-19)towards SYC
As shown in Photograph No. 9 (Appendix Q), the main entrance to SYC and Building 2 are
visible from this viewpoint. However,the layout of SYC is such that Buildings 3 and 4 are not
visible from this viewpoint as the buildings are set further west in an area obscured by tree
cover.From this viewpoint,Building 2 obscures views of Buildings 5,6,7 and 8 as the property
237
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
curves to the southwest around steep slopes and densely forested areas. As such, a post-
development rendering was not prepared.
• Post-Development Viewpoint 10-from 3380 West Mill Road(Old Water Tower,SPLIA-
MK-20)towards SYC
As shown in Photograph No. 10(see Appendix Q),the existing SYC operations are not visible
from this viewpoint due to changes in elevation and forested areas to the east obstructing the
views. As such, a post-development rendering was not prepared. As such, a post-
development rendering was not prepared.
• Viewpoints 11A,11B and 11C-Representative views from a kayak of typical yachts(44-
feet,68-feet,and 95-feet)at Inlet Entrance near Breakwater
As shown in Photograph Nos. 11A, 11B,and 11C (see Appendix Q),yachts of varying lengths
utilizing Mattituck Harbor under existing conditions would continue under the proposed
action. The subject property is not visible from Mattituck Inlet and the proposed action would
not be visible. Therefore, there would be no change under the proposed action. As such, a
post-development rendering was not prepared.
• Viewpoint 12-Representative view from a kayak of a 95-foot yacht adjacent to the Old
Mill Restaurant at the narrowest part of the Inlet
As shown in Photograph No.12 (Appendix Q),when a 95-foot yacht traveling down Mattituck
Creek in front of Old Mill Restaurant under existing conditions,the view of Old Mill Restaurant
is obscured and limited operations in the northern portion of the subject property are visible.
This view would remain the same as part of the post-development views. As such, a post-
development rendering was not prepared.
• Rendering A-13: Post-Development Viewpoint 13 (Existing Conditions) -
Representative view from a kayak of a 95-foot yacht in front of SYC dockage and
buildings
As shown in Photograph No. 13 (Appendix Q), when a 95-foot yacht is docked at SYC, the
current view of the subject property is of limited operations in the central portion of the
subject property,woodland upland area,and the residence at 5106 West Mill Road.
As depicted on Rendering A-13 in Appendix Q the post-development views would be similar
to existing conditions along the foreground as views would continue to be of the existing
docks,the bulkhead,and Buildings 7 and 8.However,between Buildings 7 and 8,the eastern
facade of Building 10 would be visible inclusive of the garage door and roof and a portion of
the eastern facade of Building 9 would be visible inclusive of the garage door and roof.Views
of the upland area would be modified as the existing slope would be removed and replaced
with Buildings 9 and 10.
238
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Although the views of the subject property would be altered as a result of the proposed action, they
would not be significant as depicted by the photo-simulations, landscaping plans, and architectural
elevations. Buildings 7 and 8 would effectively screen most of the proposed Buildings 9 and 10 from
properties to the east of the subject property.
The proposed action would expand in line with the existing scale of development on the subject property.
The proposed buildings would be constructed behind Buildings 7 and 8 perpendicular to Mattituck Creek
such that the length and mass of the proposed buildings would not be visibly obtrusive to surrounding
properties located along Mattituck Creek. Furthermore, the proposed buildings would be constructed
with the same material as the existing buildings (i.e., blue siding with white trim windows and eaves)
such that it would blend with the aesthetics of existing development on-site. The proposed Evergreen
concrete retaining wall as well as the higher elevation of areas north,west, and south of the proposed
action would also screen much of the views of Buildings 9 and 10.Although the intent of the proposed
retaining wall is for slope stabilization,the proposed vegetation along the retaining wall would create a
green wall such that it would blend into the existing landscape.
Impacts of Proposed Haul Road
Prior to the commencement of Phase 1 of construction in mid-December 2023, a temporary haul road
would be constructed extending 1,454± feet east from West Mill Road through the western upland
portion of the subject property towards the existing upland slope behind Building 8 (see Excavation
Phasing Plan and Haul Road Plan in Appendix C and Photograph No.41). To mitigate potential aesthetic
impacts to the single-family residence located at 4105 West Mill Road,the entrance to the haul road has
been shifted approximately 145 feet further south from this single-family residence (see Excavation
Phasing Plan in Appendix C and see Photograph No.42).
As the western portion of the subject property is largely forested with mature trees, the existing
vegetation surrounding the proposed haul road inclusive of dense bushes and mature trees,which would
be retained, would obscure clear internal views of the haul road and construction activities from
surrounding residences (i.e.,those residences located along the west and east side of West Mill Road as
well as the residences along North Drive, south of the subject property). As discussed in Section 2.2.2
and 2.4.2, the proposed project would shift the eastern edge of the existing forests up to 520-ft to the
west. The new forest edge is likely to result in an intensification of the existing edge effect and could
result in colonization and increase growth of invasive plants, reduction in habitat quality for nesting
songbirds due to lights in the parking areas and buildings,and increased levels of noise and disturbance
resulting from human activities, and increased abundance of predators and invasive competitors. To
minimize impacts,the proposed action includes the replanting of 27,333 SF of native trees and shrubs
along the new forest edge and the proposed retaining wall features native ground-vegetation, shrubs,
and small trees,that would serve to further reduce the intensity of the new forest edge. Furthermore,
the nearest single-family residence located at 5106 West Mill Road is located approximately 259 feet
from the haul road at the closest point. It is noted that the temporary haul road would only be utilized
during Phase 1 of construction which is proposed to be completed within approximately five-to-six(5-
6)months.
The stabilized RCA shoulder along West Mill Road and proposed entrance to the temporary haul road
has been shifted approximately 145 feet to the south of the single-family residence located at 4105 West
Mill Road to minimize noise during construction. However,this relocation has an aesthetic benefit.The
239
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
existing vegetation to remain along the western boundary of the subject property on West Mill Road
would obscure clear views of the stabilized RCA shoulder from this residence. The haul road entrance
and stabilized RCA shoulder would be visible from passersby along West Mill Road but would be limited
to 100 feet in width (see Photograph Nos. 42 and 43). Furthermore,the existing forested areas located
to the north and south of the haul road entrance would be retained and would obscure clear views of the
entrance and stabilized RCA shoulder to passersby to the north and south of the proposed entrance(see
Photograph No.44).
As noted in Section 1.2.1 of this DEIS, the haul road internal to the subject property has been shifted
approximately 29 feet to the west to mitigate potential noise and visual impacts to the residence located
at 5106 West Mill Road. At its nearest point, the haul road would be setback approximately 259 feet
southwest to the nearest structure (i.e., the pool) on the single-family residence located at 5106 West
Mill Road.As the existing forested woodland area would be maintained within the approximate 259-foot
setback and construction vehicles would turn left away from the single-family residence, it is not
expected that the haul road and construction vehicles would have a significant adverse aesthetic impact
on this single-family residence.
3.4.3 Proposed Mitigation
The following mitigation measures have been included in the proposed project to effectively minimize or
eliminate any potential adverse visual impacts:
• The relocation of the proposed haul road to increase the separation distance to the nearest
residential property at 5106 West Mill Road will minimize the visual impacts of truck activity
during construction.
• To mitigate light trespass and glare, all lighting will be shielded and directed downwards at
an intensity compliant with Chapter 172 of the Town Code (Outdoor Lighting). The proposed
lighting will also comply with the lighting standards set forth in§172-5.
• To mitigate visual impacts from the proposed action to the residence at 5106 West Mill Road,
the existing tree line at the southern property boundary will be maintained as a natural visual
buffer to operations at SYC.
• Supplemental plantings along the retaining wall will create a"sealed edge"of vegetation.
• The edge of disturbance has been moved closer to Building 9 to increase the distance between
the proposed action and Mill Road Preserve.
• The proposed grading program and Evergreen concrete retaining wall require the removal of
soils from the subject property. This results in a design where the proposed buildings are
situated at similar elevations to the existing buildings and are masked and screened from
views to the East and along Mattituck Creek by the existing buildings.
• The proposed Evergreen retaining wall will provide visual mitigation when it is vegetated. It
will blend in with the surrounding woodland and landscape.
240
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.5 Community Character
3.5.1 Existing Conditions
The SEQR Handbook provides guidance on determining whether an impact upon community character
may be significant(page 84).The SEQR Handbook states:
Community character relates notonly to the builtand natural environments ofa community,but also
to how people function within,and perceive, that community.Evaluation of potential impacts upon
community or neighborhood character is often difficult to define by quantitative measures. Courts
have supported reliance upon a municipality's comprehensive plan and zoning as expressions
of the community's desired future state or character. (emphasis added) See the discussion of
the case of Village of Chestnut Ridge v. Town o(Ramapo, 45 AD3d 74(2d Dept 2007) in Chapter 9,
Notable Court Decisions Under SEAR.In addition,if other resource focused plans such as Local
Waterfront Revitalization Plans(LWRP), Greenway plans or Heritage Area plans have been
adopted, those plans may further articulate desired future uses within the planning area.
(emphasis added)
Based on the above,community character is determined by the built,natural and social environment,
as well as the prevailing community plans(i.e.,2020 Comprehensive Plan and Town LWRP)and zoning
for the Town of Southold. As indicated in Section 3.1.1 of this DEIS and illustrated on Figure 4 in
Appendix A, the land uses within a 1,000-foot radius of the subject property include maritime,
agricultural,recreation,open space,and single-family residential uses.Review of the Town of Southold
zoning map indicates the zoning within 1,000 feet of the subject property includes R-80 and M-II zoned
properties to the north,R-80 to the south,R-80 and M-II to the east and Residential Low-Density(one-
acre minimum) (R-40)and R-80 to the west. Based on site surveys,aerial photographs,and Town of
Southold records,the zoning is generally consistent with the land uses within 1,000 feet of the subject
property(see Figures 3 and 4 in Appendix A).
Review of the Town of Southold zoning map indicates the zoning is generally consistent with the land
uses within 1,000 feet of the subject property(see Figures 3 and 4 in Appendix A).The zoning within
1,000 feet of the subject property includes R-80 and M-II zoned properties to the north, R-80 to the
south,R-80 and M-II to the east and Residential Low-Density(one-acre minimum) (R-40)and R-80 to
the west. Review of the Town of Southold Tax Map Inquiry indicates that the two parcels to the north
of the subject property,zoned M-II similar to the subject property,have a Town land use designation
of industrial. However, the Town land use map indicates the subject property has a Town land use
designation of commercial although the parcels to the north and the subject property are used in a
similar manner (i.e., marinas with commercial and recreational docking). Additionally, the northern
most parcel to the east of the subject property,zoned M-II similar to the subject property,has a Town
land use designation of industrial and is also used in a similar manner as SYC (i.e.,commercial fishing
dock and loading pier operated by the King Family). The other parcels zoned M-II south of the King
Family commercial fishing dock and pier are residentially developed and have a Town land use
designation of medium density residential. The properties zoned R-80 to the west of the subject
property are agricultural uses.
241
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Based upon the diversity of land uses and zoning designations within the 1,000-foot radius of the
subject property,the community character of the surrounding area is likewise varied.The community
character of the surrounding area is representative of a typical waterfront suburban setting with a
commercial and maritime component,recreational component and residential component.
2020 Comprehensive Plan
According to the 2020 Comprehensive Plan,the development patterns of the Town of Southold"were
guided by agriculture and maritime industries centered on waterways and overland transportation
routes. The Town's overall character is anchored in the scenic quality of its built environment,
landscapes, and waterscapes" (page 143). Thus, the community character of Mattituck Inlet and
Mattituck Creek,including the subject property and those areas surrounding both the Inlet and Creek,
have had an established commercial and maritime component as rooted in the Town's overall
character.
Several goals of the 2020 Comprehensive Plan as it relates to community character, including the
protection of cultural resources, preservation of the quality of life in residential neighborhoods,
protection of natural heritage, and protection of the unique character of the individual hamlets are
relevant to the current operations at the subject property.As discussed throughout this DEIS,maritime
uses in the area surrounding Mattituck Creek and Mattituck Inlet have persisted and are considered
maritime centers for over 60 years. SYC has existed at the subject property for 60 years and maintains
the traditional maritime uses synonymous with the Town of Southold.Furthermore,SYC ensures that
local boats and yachts can remain on local waters and enjoy the waters of the Town of Southold.The
existing buildings appropriately reflect the maritime nature of commercial uses along Mattituck Creek
and existing operations adhere to prevailing noise and lighting requirements in the Town Code.
Additionally, the subject property has not been identified by OPRHP as having historic, cultural, or
archaeological significance nor is the subject property identified as a local cultural and archaeological
resource. SYC has existed amongst residential and agricultural uses for 60 years and the surrounding
area integrates a variety of land uses.The existing operations have improved upon the protection and
restoration of the ecological quality of Mattituck Creek as the CCE FLUPSY units have improved water
quality since implementation in 2017, as discussed in Section 2.1.2 of this DEIS. Overall,the existing
operations at SYC support the community character of the Town of Southold. The way the proposed
action continues to support these goals is discussed in Section 3.1.2 and summarized in Section 3.5.2
below.
LWRP
As noted in Section 1.3.2 of this DEIS,Mattituck Inlet is the only harbor fronting the Long Island Sound
in the Town and was identified as one of ten maritime centers on Long Island in the LISRCMP. The
areas surrounding Mattituck Inlet and Mattituck Creek are identified in the Town's LWRP as an
important maritime center as all water-dependent uses within the Reach are concentrated on
Mattituck Inlet and Mattituck Creek(Section II D-5 and Section II-J Reach 1-3). Furthermore,the areas
surrounding Mattituck Inlet and Mattituck Creek contain steeply sloped forested areas.As discussed
in the Town's LWRP and in Sections 3.1.1 and 3.4.1 of this DEIS, the majority of the west side of
Mattituck Creek is steeply sloped with residences along slope edges in heavily wooded areas which
obscures views of these residences from Mattituck Inlet and Mattituck Creek(Section II-J Reach 1-3).
The density of residential development and agricultural uses on the west side of Mattituck Creek are
242
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
heavily screened by the dense tree cover. The east side of Mattituck Creek contains heavily wooded
areas with residences concentrated along the waterline. The heavily wooded areas are not steeply
sloped as compared to the west side of Mattituck Creek and gently slopes upwards from the creek.
The community character of the immediate area surrounding the subject property within 1,000 feet
can be described as varied with a residential neighborhood to the south,east(beyond Mattituck Creek)
and west,agricultural uses to the west,established maritime uses(both commercial and recreational)
to the east and north,residential and open space to the north,and recreational and residential uses to
the south.
3.5.2 Potential Impacts
While the proposed action would increase the building area on the subject property, the overall
proposed density complies with the bulk and dimensional requirements set forth for the M-II zoning
district as presented in Section 3.1.2 of this DEIS. Additionally, the proposed action requires the
modification of land, soil, topography, tree cover and soil material; however, the character of the
subject property for maritime use would be maintained. The existing pattern of maritime uses with
residential uses landward of Mattituck Creek and interspersed along the water's edge would still be
maintained.
Upon project implementation,the tree line would be setback for a distance of approximately 500 feet.
As illustrated on Renderings A-1,A-3,A-5,and A-13(see Appendix Q),the existing visual setting of the
SYC operations at the water's edge with woodlands landward in the background and the tree line
would be maintained.
The proposed buildings would be constructed behind Buildings 7 and 8 perpendicular to Mattituck
Creek such that the length and mass of the proposed buildings would not be visibly obtrusive to
surrounding properties located along Mattituck Creek.Furthermore,the proposed buildings would be
constructed with the same material as the existing buildings(i.e.,blue siding with white trim windows
and eaves)such that it would blend with the aesthetics of existing development on-site.
To accommodate the proposed action, 5.51± acres of the existing forested land (Coastal Oak-Beech
Forest/ Successional Southern Hardwood) on the western portion of the subject property would be
removed.While the proposed action would remove a portion of the existing forested land,11.76±acres
of forested area on the western portion of the subject property would remain. The proposed action
would modify the existing topography on-site to achieve a level building area and thus,would modify
the existing tree line west of Buildings 7 and 8 on the subject property.Upon project implementation,
the tree line would be setback for a distance of approximately 500 feet. As 11.76± acres of forested
land (Coastal Oak-Beech Forest/ Successional Southern Hardwood) would remain on the western
portion of the site and the tree line would be minimally setback,the subject property would continue
to provide a rural aesthetic and character for the surrounding area upon project implementation.
The proposed action would be consistent with the community character of the surrounding area,
including to boaters and others traversing the waters of Mattituck Creek and Mattituck Inlet. As
explained in Section 3.5.1 of this DEIS, Mattituck Creek has an established maritime and commercial
component. As part of these components, buildings are present along the creek to support the
maritime and commercial uses of this area.As such, the construction of two additional buildings on
243
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
the subject property,which is currently improved with seven (7) buildings for the existing maritime
use, is consistent with the community character of the subject property and surrounding area. It is
noted that during boating season(i.e.,June through September),the proposed two buildings would be
empty (or largely empty as some boat owners may elect not to launch their boats in a particular
season)and there would be no activity occurring on that portion of the subject property.Additionally,
as described in this section of the DEIS above, the proposed buildings would be constructed behind
Buildings 7 and 8 such that the proposed buildings would not be visibly obtrusive to passersby
traversing Mattituck Creek. The proposed buildings would be constructed with the same material as
the existing buildings (i.e., blue siding with white trim windows and eaves) such that it would blend
with the aesthetics of existing development on-site.As such, implementation of the proposed action
would not have a significant adverse impact on community character for boaters traversing Mattituck
Creek as similar buildings currently exist along the creek, on the subject property and are part of the
established maritime and commercial uses in this area.
As discussed in the TIS in Appendix 0 and summarized in Section 3.3 of this DEIS, the arrival and
departure of the projected 11 new employees to and from the marina would be the only additional
traffic post-development,which is a negligible amount of additional traffic.The actual presence of the
stored vessels creates little new traffic except the random drop-off and pickup of a stored vessel by an
owner or the owner's crew at almost any time during the day.These projected small number of trips
for the proposed action would be imperceivable and would have a negligible traffic impact on Cox Neck
Road/West Mill Road.
Consistency with the 2020 Comprehensive Plan and LWRP
As indicated in Section 3.5.1 of this DEIS, the SEQR Handbook provides guidance on determining
whether an impact upon community character may be significant. Community character is determined
by the built, natural and social environment, as well as the prevailing community plans (i.e., 2020
Comprehensive Plan and Town LWRP)and zoning for the Town of Southold.
As indicated in the 2020 Comprehensive Plan,the Vision Statement for the Town of Southold is,"future
planning shall be compatible with existing community character while supporting and addressing the
challenges of continued land preservation, maintain a vibrant local economy, creating efficient
transportation, promoting a diverse housing stock, expanded recreational opportunities and
protecting natural resources" (page 1)(emphasis added). The proposed action is supportive of
several components of the Town's vision statement including improving the economy, expanding
recreational activities, and protecting natural resources. Siting the storage buildings at SYC is
protective of the maritime culture associated with the Town of Southold as it would provide indoor
winter storage for boaters on local waters at a facility that has existed along Mattituck Creek for over
60 years.Constructing and operating winter boat storage buildings would bring additional jobs and a
new tax revenue stream to the Town of Southold. In addition to direct benefits to the Town, the
Applicant is responding to a market demand for larger boat owners looking for local indoor winter
storage. Furthermore, this location provides waterfront access with suitable draft (i.e., depth of
water),has the existing infrastructure required to lift and move boats of the lengths expected,and of
particular importance,the zoning that permits the proposed use. As a Marine-II zoned site,the Town
Board has determined this location to be suitable for the permitted use.
244
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The 2020 Comprehensive Plan further indicates in Chapter 5 (Community Character) at Goal 5,
Objective (A)(2) that in the hamlet of Mattituck/Laurel, "revitalize(ing) Mattituck Inlet into a
recreational and commercial hub," (page 15 in Chapter 5) is important and that protecting the
maritime culture and industry is critical to preserve the overall character of the Town of Southold.The
2020 Comprehensive Plan identifies that reconnecting the waterfront to the Love Lane business
district and updating and implementing the Harbor Management Plan are two goals within the hamlet.
The proposed action would not only maintain a current maritime use that has persisted at the subject
property for 60 years but would also respond to a market demand for winter storage of larger vessels.
As indicated in Section 3.4 of this DEIS,while the proposed development would require the vegetation
and soil removal, the existing tree line and supplemental plantings effectively maintain the current
viewshed of maritime uses interspersed with residential land uses and recreational/open space. As
such,the proposed action would be protective of scenic and natural resources.
As address in Table 31 in Section 3.1.2 of this DEIS, the proposed action is consistent with the
applicable recommendations of the LWRP set forth for the developed coast,natural coast,public coast,
and working coast.
Regional Impacts
The regional impacts of the construction-related truck activity for the entire route have been
expressed as a potential issue of concern to the Town of Southold Planning Department. As the exact
destination for the excavated material has not yet been determined for reasons explained in this DEIS,
the assumed route includes trucks exiting the subject property and utilizing Mill Road,Cox Neck Road,
Sound Avenue, Northville Tpke, CR 58 and then to the LIE. As evaluated in Section 3.3
(Transportation), Section 3.7 (Noise), Section 3.10 (Construction-Related Impacts), and Section 3.11
(Archaeological and Cultural Resources),the proposed action would not result in significant adverse
traffic, noise, or vibration impacts associated with construction-related activities or operations.
Additionally,mitigation measures have been identified for the protection of structures and avoidance
of impacts to roadways.
Overall, based on the above, no significant adverse community character impacts would result from the
proposed action.
3.5.3 Proposed Mitigation
The proposed action has incorporated the following measures to effectively mitigate or eliminate any potential
adverse impacts to the community character:
• The siting of the proposed buildings at elevations similar to the existing buildings preserves
the long-standing maritime views along Mattituck Creek.
• The proposed grading program and Evergreen concrete retaining wall require the removal of
soils from the subject property. This results in a design where the proposed buildings are
situated at similar elevations to the existing buildings and are masked and screened from
views to the east and along Mattituck Creek by the existing buildings.
245
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• The proposed Evergreen retaining wall will blend in with the surrounding woodland and
landscape.
3.6 Open Space and Recreation
3.6.1 Existing Conditions
The Town of Southold offers a variety of land-based and water-based recreational opportunities within
its jurisdiction that include but are not limited to parks, preserves, and bike routes. Through the
provision of these open space and recreational opportunities,the Town considers the needs,preference,
and financial abilities of the residents and visitors of Southold. Within the hamlet of Mattituck,there is
approximately 240 acres of open space and recreational areas are operated by the Mattituck Park
District,Town of Southold,Suffolk County,and New York State.sl.
Specifically,within the 1,000-foot radius of the subject property as discussed in Section 3.1.1 of this DEIS
and illustrated on Figure 4 in Appendix A, there are three passive and active public open space and
recreational areas:
• Mattituck Harbor - The Town's LWRP identifies Mattituck Harbor as being owned by both
NYSDEC and the Town. Mattituck Harbor extends 2.25±miles south from Long Island Sound to
the hamlet of Mattituck and includes Mattituck Inlet and Mattituck Creek. Mattituck Inlet is
approximately 100 feet wide, and Mattituck Creek is approximately 80 feet wide throughout.
Mattituck Harbor has two jetties at Mattituck Inlet,the east which was constructed in 1906 and
the west jetty was constructed in 1938.As excerpted from the Town's LWRP,Mattituck Harbor
is"...the only harbor fronting on Long Island Sound.It is both a recreational and commercial port
and is the site of one of the Town's largest concentrations of marine facilities, second only to
Greenport Village." (Section II -J Reach 1-3). Furthermore, "Mattituck Inlet provides]the most
suitable and appropriate locations]for new or expansion of existing water-dependent commercial
and industrial uses." (Section II - J Reach 1-4). Additionally, the Long Island Sound
Comprehensive Management Program (NYSDOS, 1999) identifies Mattituck Inlet as one of ten
maritime centers on Long Island.
The Town's LWRP identifies recreational boating as an important use of the Town's waters and
that Reach-1 (Mattituck Inlet) has a high concentration of the Town's recreational boating
activity as it is the only harbor fronting Long Island Sound and all water-enhanced uses within
the Reach are concentrated in Mattituck Inlet and Mattituck Creek(Section II D-5 and Section II-
J Reach 1-3).
As of the LWRP's initial adoption in 2004 and amended LWRP adopted in 2011,there were an
estimated 3,370 to 3,530 docking facilities within the Town of Southold (Section II D-5).
Specifically, within Mattituck Inlet and Mattituck Creek, the existing marinas provide
approximately 300 boat slips (Section II-J Reach 1-4). As discussed in the Boat(Vessel) Study,
see Appendix M,it is estimated approximately 547 boats are active in Mattituck Creek on a peak
season day.While not publicly accessible,there are approximately 117 privately owned docks
51http:f/wwwasoutholdtownnv. ovlDocumentCenter View�7856�Southold-Town-Co prehensive-Plan-
Appendices-Vol-2
246
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
along Mattituck Creek for those property owners to access Mattituck Creek and Mattituck Inlet.
As discussed in the Boat(Vessel)Analysis(see Appendix M),the main user groups of Mattituck
Creek include recreational and commercial boaters, personal watercraft (PWCs), as well as
unmotorized water sports (i.e., kayaks and SUPs). There are currently three (3) marinas on
Mattituck Creek,including the subject property(SYC),the Strong's Water Club (also owned by
SYC), and Mattituck Inlet Fishing Station. Boaters can also access Mattituck Creek via three
ramps:the Mattituck Creek Waterway Access Site (owned by the NYSDEC)located north of the
subject property at Mattituck Inlet and two ramps on North Road Inlet(owned by the Town of
Southold and Mattituck Park District) located south of the subject property at the southern
terminus of Mattituck Creek. The existing operations are visible from Mattituck Harbor when
traveling north and south of SYC in close proximity.
• Oregon Marsh State Tidal Wetlands - The Town's LWRP identifies these 28± acres of tidal
wetlands as being owned by NYSDEC and is part of the larger Mattituck Inlet Wetland and
Beaches wetland area,south of Bailie Beach Park,that is designated as Significant Coastal Fish
and Wildlife Habitat. This area is located 0.06-mile northeast from the subject property. This is
a passive open space area accessible to the public by NYSDEC permit which permits nature study
and observation. These wetlands are visible from boats on Mattituck Creek and the local roads
on the east side of Mattituck Creek(Section II-J Reach 1-14).The existing operations at SYC are
visible from this location when facing southwest.
• Mill Road Preserve-Mill Road Preserve is owned and maintained by the Town of Southold. This
active open space and recreation area abuts the southeast boundary of the R-80 zoned portion
of the subject property and is approximately 27 acres of grassland/shrubland and mature
woodland and includes a parking lot at the trailhead and two main hiking trails. The residents
of Southold and visitors to the Town have access to this resource. It is assumed the highest
volume of use for the trails is between April and September 30th. Under existing conditions, in
relation to its view of the existing operations of SYC,no other recreational areas identified in the
Town's LWRP are within 1,000 feet of the subject property.
Pursuant to the Town's LWRP,"[a]ll marinas in Southold are privately owned and operated,although the
majority is open to the public for the payment of a fee."(Section II D-8). SYC adheres to this,and the public
can dock or store their boats and yachts at the facility for a fee.
Section 3.6.2 of this DEIS evaluates the potential impact of the proposed action on the aforementioned
open space and recreational resources.
3.6.2 Potential Impacts
Impacts to Mattituck Harbor
As discussed in Section 3.4.2 of this DEIS and depicted on Rendering A-3 in Appendix Q, the post-
development views of SYC from the south along Mattituck Creek would be similar to existing
conditions. Select docks and the bulkhead would remain visible as well as the eastern facade of
Building 8 and southern portion of Building 7. Most of Buildings 9 and 10 would be obscured from
view. However, the top of the eave for Building 9 would be visible to the southwest and most of the
247
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
eastern facade and eave of Building 10 would be visible to the northwest. Furthermore, the
northeastern corner of the Evergreen concrete retaining wall would be visible between Buildings 7
and 10.Additionally,as discussed in Section 2.2.2 of this DEIS,the proposed action would not disrupt
the existing tidal flows or depths of Mattituck Harbor nor impact the existing user groups of Mattituck
Harbor.As discussed in Section 3.7.2, construction noise would be of temporary nature and all noise
impacts would cease upon completion. While there would be temporary increases in noise levels
during this period,the proposed project would comply with the permitted times set forth in Chapter
180 of the Town Code. Additional operations are limited to boats being taken out of and put into the
creek during certain months and operational noise is not expected to have significant adverse effects
to those recreational users within Mattituck Harbor. While there would be temporary increases in
noise levels during this period,the proposed project would comply with the permitted times set forth
in Chapter 180 of the Town Code. The proposed action would benefit Mattituck Harbor as it would
continue to support the boating community as it would allow owners of larger vessels the option of
climate-controlled storage rather than transport to warmer waters for the winter months.Therefore,
no significant adverse impacts to Mattituck Harbor are anticipated.
Impacts to Oregon Marsh State Tidal Wetlands
Use of this passive open space would remain unaffected by the proposed action.During operation,the
proposed action would only introduce activity at SYC during the early spring(April-May)and late fall
(October-November) that would not be discernible from the existing conditions. As discussed in
Section 3.7.2,construction noise would be of temporary nature and all noise impacts would cease upon
completion.While there would be temporary increases in noise levels during this period,the proposed
project would comply with the permitted times set forth in Chapter 180 of the Town Code. Additional
operations are limited to boats being taken out of and put into the creek during certain months and
operational noise is not expected to have significant adverse effects to those recreational users within
Oregon Marsh State Tidal Wetlands. There would be no new impact on Oregon Marsh State Tidal
Wetlands from April to September 30th, which is likely to be a time when NYSDEC issues the most
permits for its use. Therefore, no significant adverse impacts to Oregon Marsh State Tidal Wetlands
are anticipated.
Impacts to Mill Road Preserve
Mill Road Preserve is accessible year-round to both residents and visitors to the Town of Southold. It
is expected the highest volume of use for the trails would remain the same as existing conditions,
between April and September. During construction, which is anticipated to commence in mid-
December 2023 and be completed in October 2024,there would be a slight increase in activity during
the timeframe during which the trails are frequently used.As discussed in Section 3.7.2,construction
noise would be of temporary nature and all noise impacts would cease upon completion.While there
would be temporary increases in noise levels during this period,the proposed project would comply
with the permitted times set forth in Chapter 180 of the Town Code and the truck activity associated
with excavation would be limited to the weekdays. Additional operations are limited to boats being
taken out of and put into the creek during certain months and operational noise is not expected to have
significant adverse effects to those recreational users within Mill Road Preserve.
248
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As discussed in Section 2.4.2 of this DEIS,the existing forest edge of the Mill Road Preserve would be
altered as a result of the proposed action.The ecological community composition of Mill Road Preserve
is comparable to the proposed action. The proposed action would result in an intensification of use
within the existing forest edge as edge effects would be shifted to approximately 70 feet from the
shared property boundary with the subject property in the northeast corner of Mill Road Preserve.
The effects of the edge would extend approximately 200 feet in to Mill Road Preserve. However, as
indicated in the ecological assessment, the proposed action would not result in significant adverse
impacts on the forest habitat quality for Mill Road Preserve.
The highest volume of activity at SYC is during the boating season, which is March 15 through
September 15. During this time, boats are transported to and from Mattituck Harbor via travelifts,
boaters,fishermen,and CCE FLUPSY operators access the floating docks,and boaters utilize the pump-
out services and fueling station. Upon implementation of the proposed action, this high volume of
activity during this season under the proposed action would remain the same as existing conditions
and corresponds with the highest volume of use for the trails.
Off-season activity at SYC, from approximately September 15 through March 15, includes boat
maintenance and repairs which would continue upon implementation of the proposed action.As part
of the proposed action, additional activity at SYC during the early spring (April-May) and late fall
(October-November)would only be for the transporting of the yachts to and from the storage buildings
and Mattituck Creek. From Mill Road Preserve, the addition of this activity would not be discernible
from existing conditions and would occur when the trail is not frequently used. As indicated in
Viewpoint 4 discussed earlier in Section 3.4.2,post-development views would consist of the woodland
area of the subject property to not be disturbed and a portion of the western and southern facades and
roof of Building 9, the roof and a portion of the southern facade of Building 10, and a portion of the
western facade of existing Building 8.The cover in the setback area would remain.
The proposed action would not alter the public's enjoyment of the Town-owned preserve property
during all phases of the action as there would be no new impact on Mill Road Preserve from April to
September 30,which is likely to be a time when the trails are most frequently used. Overall,based on
the above,no significant adverse impacts to Mill Road Preserve are anticipated.
Impacts on Vessel Traffic
As explained in the Boat (Vessel) Study, it is estimated that approximately 547 boats are active in
Mattituck Harbor on a peak season day. As concluded in the Boat(Vessel) Study,the proposed action
would increase boats in the off-peak season (i.e., April - May for yachts returning to the water and
October-November for yachts arriving to SYC for storage)for a 12-week timeframe in the spring and
fall. As such,this averages to an increase of seven boats per week or one-to-two 0.48 boat trips during
this off-peak time. This increase is nominal and would not inhibit other maritime uses on Mattituck
Harbor. As the vessel traffic would be comparable to existing conditions, it is not anticipated the
proposed action would alter the ability of personal watercrafts and non-motorized watersports,such
as kayaks and SUPS,to navigate within Mattituck Harbor.Viewpoints 12 and 13 in Appendix Q indicate
navigability within Mattituck Harbor is not impacted by larger vessels as they were taken from the
perspective of a kayak with a 95-foot yacht present adjacent to the existing SYC operations.
Additionally,as noted in Section 2.2.2,many of the yachts to be accommodated by the proposed action
are anticipated to be existing boats utilizing local waters customers electing to store their yachts in a
249
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
climate-controlled facility closer to home rather and eliminates the need to relocate the vessel to
warmer climates for winter storage. Therefore, no significant adverse impacts to vessel traffic on
Mattituck Harbor are anticipated.
Impact to Forest Edge
As indicated in Section 2.4.2,the proposed project would shift the eastern edge of the existing forests
up to 520-ft to the west. The potential edge effects and habitat degradation in the retained forests on
the subject property and the Town of Southold Mill Road Preserve would be minimized with the
proposed replanting of 27,333 SF of native trees and shrubs along the new forest edge. Additionally,
the proposed retaining wall features native ground-vegetation, shrubs, and small trees, that would
serve to further reduce the intensity of the new forest edge.
Impact to Community Character
As discussed in Sections 3.1.2 and 3.5.2,Mattituck Harbor is one of 10 maritime centers on Long Island
and maritime uses at the subject property have persisted for over 60 years.The proposed action would
be consistent with the community character of the surrounding area, which includes boaters and
others traversing the waters of Mattituck Creek and Mattituck Inlet as well as buildings present along
the creek to support the maritime and commercial uses of this area.Therefore,Mattituck Creek has an
established maritime and commercial component. The proposed action would contribute to the
existing maritime character of the subject property and surrounding area. To maintain consistency
with the existing six (6) storage buildings and blend with the overall aesthetics at SYC, the two
proposed boat storage buildings would be constructed with the same material as the existing buildings
(i.e.,blue siding with white trim windows and eaves).
South of SYC are residential uses along North Drive.As shown on Rendering A-2 in Appendix Q, the
post-development views would consist of the forested area to be retained south of the proposed action,
the stone blend pavement proposed south of Building 9,and the southern facade of Building 9 visible
from the northern terminus of North Drive.Similar to the proposed action,views of existing Buildings
7 and 8 would remain visible.To buffer the views onto the proposed buildings,supplemental plantings
are proposed at the southern property boundary. Based on the above,no significant adverse impacts
to the community character of Mattituck Harbor are anticipated.
3.6.3 Proposed Mitigation
The proposed development would not result in any significant adverse impacts to open space and recreation
as the storage buildings are not used actively year-round and there would not be an intensification of the use
during the summer months. As a support business to the recreational boating industry,the proposed action is
expected to have a beneficial impact on increasing the availability of storage for large yacht owners. The
proposed action has incorporated the following measures to effectively mitigate or eliminate any potential
adverse impacts to open space and recreational resources during construction and post development:
• The excavation phases will limit soil removal to the weekdays so as to not disrupt weekend
visits to the Town Preserve.
250
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Supplemental plantings proposed at southern property line will buffer the viewshed from
residences to the south of subject property.
3.7 Noise
3.7.1 Existing Conditions
Introduction
SoundSense,the acoustical engineering firm for the proposed action,has prepared an Acoustic Report
to evaluate the existing acoustic conditions at the subject property, as well as the analysis of the
expected acoustic impacts of the proposed development. The Acoustic Report incorporates all of the
required elements included in the Amended Final Scope dated April 5, 2021. A summary of the
Acoustic Report follows and the report in its entirety is included in Appendix R of this DEIS.
Methodology
The acoustic analysis included the collection of existing sound level readings at the subject property
as well as readings along the planned truck route for the excavation and construction phases. These
existing sound levels served as the background sound levels for the area that were incorporated into
all noise predictions completed for the proposed project. The measured sound levels were used in
conjunction with: (1) the traffic data generated in the TIS to assess the potential increases in traffic
noise both during construction and in the Build condition,and(2)the equipment types and utilization
factors provided by Red Rock Industries to develop a construction noise model. Any potential
increases in sound levels at the receiving locations evaluated due to increased vehicle/truck passbys,
construction activities,and final sound levels with the new development have been considered for the
proposed project. Calculations were completed using SoundPLAN Version 8.2 acoustic modelling
software (SoundPLAN). Traffic calculations were completed using the Federal Highway
Administration's TNM 2.5 noise model inside SoundPLAN, and construction noise sources used
standardized acoustic data available from the FTA Guidelines.
SoundPLAN constructs a 3-D model for all areas analyzed by importing ground elevation data through
Google Earth. Using the elevation data, a 3-D Digital Ground Model ("DGM") of the terrain is
constructed. Once the DGM is constructed, building height and location information, and roadway
information are imported. Additionally, surface composition (soft or hard ground, or water) is
considered in the DGM in order to consider soft ground attenuation, reflections from buildings, and
propagation over water. Depending on the specific situation analyzed,the DGM is updated to indicate
changes in the elevation which would occur through the construction process,such as the excavation
and retaining wall construction proposed(see Figure 6 in the Acoustic Report).It is also noted that all
calculations completed for the project included frequency-dependent data for accurate calculation of
barrier effects/diffraction, although only overall sound pressure levels are presented for each
receiving location to simplify the results and compare the results to the Town of Southold Noise
Ordinance(Chapter 180),NYSDEC criteria and NYSDOT criteria(as summarized below).
Using the computer-generated model, an existing noise model for traffic was also developed for
existing peak traffic generation.Along with the background sound levels collected,these baseline noise
levels served as the existing condition sound levels to which the Build Condition predicted sound levels
251
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
were compared. This comparison allowed for evaluation against the Town of Southold Noise
Ordinance (Chapter 180)and NYSDEC Criteria.
Acoustic Criteria
Town of Southold Noise Ordinance-Chapter 180
§180-5 General prohibition.
No person or persons owning, leasing or controlling the operation of any source of noise on any lot or
structure within the Town shall permit the establishment of a condition of noise pollution. Except as
provided in§180-6, the use of amplifiers,speakers or other machines or devices capable of reproducing
amplified or airborne sound from the premises,dwelling or building within the Town shall be considered
noise pollution and shall be prohibited at all times.
§180-6 Standards.
No person shall create or cause to be emitted any noise pollution which when measured on a sound-
level meter from the property line of a complaining property owner exceeds the following
standards:
A Sunday through Thursday:
(1) From 7.00 am to 7.00 pm.,airborne or amplified sound in excess of 65 dB(A),and
(2) From 7.00 pm.to 7.00 am,airborne or amplified sound in excess of 50 dB(A).
B. Friday and Saturday:
(1) From 7.00 am to 11:00 pm.,airborne or amplified sound in excess of 65 dB(A),and
(2) From 11:00 pm, to 7.00 am.,airborne or amplified sound in excess of 50 dB(A).
§180-8 Exceptions.
A. The provisions of§180-5 and 180-6 shall not apply to the following:
(2) Construction activities between 7.00 am. through 7.00 pm.and the associated use of
construction devices or the noise produced thereby,provided that such activities and
such equipment and their use comply with the other provisions hereof.
(11) Emergency construction or repair work.
(14) Emergency stationary and mobile signal devices.
New York State Department of Environmental Conservation
The NYSDEC provides guidance for environmental noise impacts in its technical report'Assessing and
Mitigating Noise Impacts'released October 6,2000,and revised February 2,2001. Table 35 below(as
excerpted from Table 1 of the Acoustic Report) summarizes the NYSDEC's guidance provided in
Section V,Subsection B,Item c.
252
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 35-NYSDEC Thresholds for Significant Sound Pressure Level(SPL)Increase
Sound Level Impact Need for Mitigation
Increase(dB)
0-3 No appreciable effect on receptors No need
Potential for adverse noise impact in cases Mitigation may be needed for some
3-6 where the most sensitive of receptors are sensitive receptors such as churches
present and theaters
Potential for adverse noise impact depending Mitigation may be needed for most
6-10 on existing SPL and character of surround land receptors,depending on existing
use and receptors conditions
Deserves consideration of avoidance
10 or more Adverse impact and mitigation measures in most
cases
NYSDOT Noise Analysis Procedures and Project Environmental Guidelines
The NYSDOT provides recommended criteria for road noise levels at various receptors in its technical
report NYSDOT Environmental Procedures Manual, Chapter 3.1 (August 1998) (NYSDOT EPM).
According to the NYSDOT EPM, the sound levels included are recommended criterion and not
standards.It should also be noted that the criteria outlined in the document are guided towards future
traffic after project completion. Recommended noise levels from the NYSDOT EPM are included in
Table 2 of the Acoustic Report. For the nearest receptors to the roads evaluated for additional traffic
for this project,Category B is appropriate for evaluation and is summarized below:
Activity Leq(h) (dBA) L10(h) (dBA) Description of Activity Category
Category
B 67(Exterior) 70 (Exterior) Picnic areas,recreation areas,
playgrounds,active sports areas,parks,
residences,motels,hotels,schools,
churches,libraries,and hospitals.
Existing Ambient Sound Levels at the Subject Property
As excerpted from Section 3.6.4 of the Acoustic Report,to establish the existing or ambient sound levels
at the subject property,noise monitoring was performed at two locations(see Figure 1 in the Acoustic
Report). Monitoring at Location 1 occurred from April 14, 2021 to April 28, 2021,and at Location 2
from April 28,2021 to May 3,2021,and then from May 13,2021 until May 23,2021 for a total of four
full weeks of data collection. The disruption between May 3, 2021 and May 13, 2021 was due to a
disruption in data transmission from the noise monitoring unit. Therefore, additional days were
completed after May 13, 2021 to complete the four full weeks of data collection. It is noted that the
Acoustic Report considered the effects of inclement weather on data output by obtaining data from the
253
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
nearest weather station at East Hampton Airport. For any hour where precipitation was reported,this
hour was eliminated from the calculation of existing or ambient condition.
The results of the readings at Locations 1 and 2 are summarized in Table 36 below(as excerpted from
Table 3 in the Acoustic Report). The median hourly Leq of 44 dBA was selected to use as the
background sound level near the subject property as this was the lowest median sound level collected
during the measurements. The Acoustic Report (Section 3.6.12) provides individual graphs to
summarize the sound levels by hour for each day of data collection. The reported dominant sounds at
the subject property included wildlife,nearby construction activities,and a couple occurrences of boat
washing.
Table 36-Summary of Acoustic Data Collected at the Subject Property(7 am-7 pm)
Metric Measurement Leq Lmax L10 L50 L90 Lmin
Location (dBA) (dBA) (dBA) (dBA) (dBA) (dBA
Location 1 39.4 57.6 48.5 44.1 40.0 29.6
Minimum''
Location 2 36.3 55.3 38.2 31.6 28.5 24.7
First Location 1 42.7 65.1 53.2 47.5 44.1 35.7
Quartile Location 2 42.0 64.0 43.6 36.2 31.7 28.5
Location 1 44.5 67.4 55.6 48.8! 46.1 37.8
Median
Location 2 44.0 67.9 45.8 37.8 33.4 30.2
Third Location 1 46.9 70.7 58.0 51.1 47.9 41.4
Quartile Location 2 46.3 72.0 48.4 41.5 36.1 32.3
Maximum Location 1' 58A 85.4 69.3 63.8 63.2 4&0
Location 2'' 65.3 83.3 70.6 54.9 46.6 42.3
Existing Sound Levels Along Planned Truck Route During Excavation
In addition to the above-described noise monitoring data taken at the subject property, acoustic
readings were collected at four locations along the planned truck route during the excavation phase
(see Figure 2 in the Acoustic Report). These acoustic readings were collected on April 20,2021,in the
morning between 7:39 AM and 9:21 AM, and in the afternoon from 3:16 PM to 4:59 PM, and were
collected for a duration of 20 minutes each. The results of the readings are summarized in Table 37
below(excerpted from Table 4 of the Acoustic Report).
As explained in the Acoustic Report,the noise monitoring equipment was set up at the roadside(so as
to not trespass on private property). As the sound levels of vehicles passing were louder at the reading
locations than they would be at the nearest residences,the L90 values have been used to represent the
background sound levels at all receiver locations near each reading location. For each location, the
lowest L90 measured was used to represent a quieter background noise level and a worst-case
scenario for noise impact.
254
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 37-Summary of Acoustic Data Collected along the Truck Route
Measurement Time Period LAeq LASmax L10 L50 L90 LASmin
Location (dBA) dBA, (dBA) (dBA, (dBA) dBA)
Location 1 7:39am-7:59am 60 79 56 45 41 37
_._---------- 3:16pm- 37pm __._ ..? __.___ 81 _. _ -5 -_ _. ._45 w.. _41_ .3�
Location 2
8:06am-8:26am 61 76 65 52 51 49
3:45pm-4:05pm 69 92 69 52 46 41
Location 3 8:32am-8 52pm„ 68 85 71 64 52 46
__ ___. __. . ---r__.._ 4 10pm-4 ----- _.. _ 5 '__$ _ _ _ a 40
Location 4 9:01am-9:21am 67 84 69 57 48 39
_ 4:39pmm-4.59 m 69 95 70 64 53 46
Existing Sound Levels with Traffic
To evaluate the existing condition,traffic data collected by Dunn Engineering were used to complete a
traffic noise model in SoundPLAN using the FHA's TNM 2.5 methodology. Inputs for the model were
the baseline peak traffic levels for analysis,as determined by the traffic analysis.Peak traffic levels for
both the baseline and additional trips generated as defined in the TIS were used for all analyses.The
results of the baseline noise models can be found graphically in Figures 3 through 5 (in the Acoustic
Report)for the peak hour sound levels and Figures 6 through 8(in the Acoustic Report)for the 8-hour
sound levels.The overall sound pressure levels at each receiving location considered can be found in
Table 38 below(as excerpted from Table 5). It is noted that the 18 receiving locations were selected
to assess noise of surrounding properties as well as properties proximate to the planned truck route
from the subject site to Sound Avenue. These Existing Condition sound levels are used to evaluate the
impacts of construction activities,traffic increases,and the Build Condition for evaluation.
Table 38-Existing Conditions at Each Receiving Location Evaluated
Receiver Peak Hour Eight Hour
Number Location Existing Condition Existing Condition
dBA dBA
R1 5106 West Mill Road 44 44
R2 800 North Drive 44 44
R3 805 North Drive 44 44
R4 2010 West Mill Road 44 44
R5 4105 West Mill Road 49 50
R6 200 East Mill Road 44 44
R7 750 East Mill Road 44 44
R8 j 3329 Grand Ave 44 44
R9 3001 West Mill Road 46 46
R10 1525 West Mill Road 50 50
R11 1480 West Milli Road 52 52
R12 1065 West Mill Road 52 52
R13 155 Breakwater Road 52 52
R14 2100 Cox Neck Road 57 57
R15 2695 Cox Neck Road 155 55
255
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Receiver Peak Hour Eight Hour
Number Location Existing Condition Existing Condition
dBA dBA
R16 1475 Cox Neck Road 54 54
R17 1020 Cox Neck Road 56 56
R18 55 Middle Road 60 60
3.7.2 Potential Impacts
Construction Noise Impacts
Using the methodologies, construction equipment descriptions, equipment utilizations,sound power
levels, and traffic modeling methodologies described in the Acoustic Report, predictions were
compiled for sound levels at each phase of construction. As indicated in the Acoustic Report (see
Appendix R), blasting and pile driving are not proposed as part of construction. An hourly peak Leq
and 8-hour Leq were both calculated for each phase of the construction at the subject property, and
these are graphically shown in Figures 7-18 of the Acoustic Report. For the additional areas considered
at West Mill Road/Cox Neck Road, and Cox Neck Road, the main noise source is traffic. Therefore,
figures for these areas presented focus only on the traffic data for Excavation 2 Phase and the
Excavation Drainage Phase, as these were the loudest construction phases for each traffic condition.
Figures 19-26 in the Acoustic Report graphically show these results for the 8-hour Leq as well as the
peak hour. The projected sound pressure levels for all evaluation scenarios and receivers are
summarized in Table 39 and Table 40 below for the 8-hour and peak hour sound levels,respectively
(as excerpted from Tables 15 and 16 in the Acoustic Report).
256
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 39-8-Hour Leq Sound Levels at All Receivers for Construction Activities and Additional Traffic
Tree Excavation
Existing Excavation Excavation Retaining Constructio
Receiver Location Condition Removal/ Phase 1 Phase 2 Wall Phase Drainage n Phase
Number (dBA) Grubbing (dBA) (dBA) (dBA) Phase (dBA)
dBA dBA
R1 5106 West Mill Road 44 49 50 so 50 50 50
R2 800 North Drive 44 69 78 80 76 76 76
R3 805 North Drive 44 66 75 73 69 69 68
R4 2010 West Mill Road 44 57 58 60 57 57 57
R5 4105 West Mill Road 50 56 59 61 57 57 57
R6 200 East Mill Road 44 55 55 61 60 60 60
R7 750 East Mill Road 44 54 59 61 59 59 59
R8 3329 Grand Ave 44 58 65 69 68 68 68
R9 3001 West Mill Road 46 51 57 58 52 52 52
R10 1525 West Mill Road 50 53 68 68 62 62 62
R11 1480 West Mill Road 52 54 71 71 64 64 64
R12 1065 West Mill Road 52 54 71 71 64 64 64
R13 155 Breakwater Road 52 53 71 71 64 64 64
R14 2100 Cox Neck Road 57 55 67 67 66 66 66
R15 2695 Cox Neck Road 55 55 66 66 65 65 65
R16 1475 Cox Neck Road 54 55 65 65 62 62 62
R17 1020 Cox Neck Road 56 59 62 62 61 61 61
R18 55 Middle Road 60 63 63 63 62 62 62
257
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 40-Peak Hour Leq Sound Levels at All Receivers for Construction Activities and Additional Traffic
Tree Excavation
Existing Excavation Excavation Retaining
Receiver Removal/ Drainage Construction
Location Condition Phase 1 Phase 2 Wall Phase
Number (dBA) Grubbing (dBA) (dBA) (dBA) Phase Phase(dBA)
dBA dBA
R1 5106 West Mill Road 44 52 57 57 57 57 57
R2 800 North Drive 44 73 57 89 84 84 84
R3 805 North Drive 44 71 54 82 77 77 77
R4 2010 West Mill Road 44 61 66 69 65 65 65
R5 4105 West Mill Road 49 60 66 69 65 65 65
R6 200 East Mill Road 44 59 63 69 68 68 68
R7 750 East Mill Road 44 58 68 69 67 67 67
R8 3329 Grand Ave 44 62 74 78 77 77 77
R9 3001 West Mill Road 46 54 63 64 58 58 58
R10 1525 West Mill Road 50 54 69 69 64 64 64
R11 1480 West Mill Road 52 54 72 72 66 66 66
R12 1065 West Mill Road 52 55 72 72 66 66 66
R13 155 Breakwater Road 52 53 72 72 66 66 66
R14 2100 Cox Neck Road 57 55 68 68 68 68 68
R15 2695 Cox Neck Road 55 55 65 65 68 68 68
R16 1475 Cox Neck Road 54 55 64 64 62 62 62
R17 1020 Cox Neck'Road 56 58 62 62 62 62 62
R18 55 Middle Road 60 63 63 63 62 62 62
258
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
While receivers near the subject property would be temporarily impacted by the construction noise,
noise impacts due to construction are specifically exempt from the Noise Code. Additionally, all
construction activities would be limited to Monday to Saturday from 7:00 am to 7:00 pm. The
excavation phases with truck activity would be limited to Monday to Friday from 7:00 am to 5:00 pm
as mitigation offered by the Applicant. On Saturday's and after 5:00 pm on weekdays, on-site activity
would be vehicle and machinery maintenance and planning for the following workday or Monday for
a 7:00 am start. No work would be performed on Federal or State holidays,or on Sundays.
As can be seen from the figures in the Acoustic Report and the tables above, there is a significant
increase in noise at receivers R1-R16 for at least one phase of construction for either the peak hour or
8-hour Leq.For Receivers R1-R8,the increases are predominantly due to sound created at the Project
Site from construction activities.These increases would be considered a significant impact,as defined
by the NYSDEC criteria, during the periods of construction. The construction-related noise impacts
would be limited to the times and days specified,which are permitted by Town Code, and would be
temporary. For receivers 119-1118,any increase in the sound levels would be dependent on additional
traffic,which is highest during the excavation phases. Sound levels are higher than recommended by
the NYSDOT at receivers 1110-1114 during the excavation phases, and during all construction at
receivers R14 and R15. However,as noted in Section 3.6.3 of the Acoustic Report and in Section 3.7.1
of this DEIS, the NYSDOT criteria are not standards, and these increases are temporary only during
construction.
Additionally, it should be noted that all sound levels included in the above tables represent exterior
sound levels. Based on NYSDOT criteria, the sound levels in interior spaces would be 20-25 dB less
than the levels shown.As excavation is proposed for mid-December through May,the majority of this
period would see most residents indoors and would minimize the impact to quality of life. If the
reduction of 20 dB is applied to the traffic data for receivers R10-R14, which exceed the outdoor
recommendations from the NYSDOT,the interior recommendations (see Category E of Table 2 in the
Acoustic Report) for interior noise levels are met and would be within the NYSDOT recommended
criteria for those receivers.
For the construction phase, the impacts would occur from late-March to late-September, when
outdoor activities are occurring. While there would be temporary increases in noise levels during this
period,the proposed project would comply with the permitted times set forth in Chapter 180 of the
Town Code.
To mitigate noise impacts to surrounding properties and wildlife during the excavation and
construction phases,the following measures would be implemented:
• Any vehicle which requires the use of a back-up alarm will use a white noise back-up alarm
instead of a single tone beep.
• All trucks and drivers will be instructed to disengage all Jake Brake mechanisms once turning
on to Cox Neck Rod from County Route 48.
• All trucks utilized would be Tier 4 certified by EPA standards.
259
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Post-Development Impact Analysis
As a proposed winter storage facility,the buildings would be largely inactive for almost half of the year.
The noise would occur when boats are loaded into and out of the building.Due to the proposed grading,
the retaining wall would function as a sound barrier, largely containing the noise within the graded
area. Figures 27 through 29 in the Acoustic Report show the graphic presentation of the peak sound
levels predicted at the subject property using the noise sources identified in Table 15 of the Acoustic
Report, truck acceleration, raised voices, and boat washing, as well as peak future traffic generation
along Cox Neck Road and West Mill Road.Table 41(as excerpted from Table 18 in the Acoustic Report)
summarizes the overall sound pressure levels at each of the 18 receptor locations evaluated.
Table 41-Sound Pressure Levels at All Receivers in the Build Condition
Receiver Location Existing Build Condition
Number Condition(dBA) (dBA)
R1 5106 West Mill Road 44 44
R2 800 North Drive 44 48
R3 805 North Drive 44 44
R4 2010 West Mill Road 44 44
R5 4105 West Mill Road 49 50
R6 200 East Mill Road 44 44
R7 750 East Mill Road 44 44
R8 3329 Grand Ave 44 44
R9 3001 West Mill Road 46 46
R10 1525 West Mill Road 50 50
R11 1480 West Mill Road 52 52
R12 1065 West Mill Road 52 52
R13 155 Breakwater Road 52 52
R14 2100 Cox Neck Road 57 57
R15 2695 Cox Neck Road 55 55
R16 1475 Cox Neck Road 54 54
R17 1020 Cox Neck Road 56 56
R18 55 Middle Road 60 60
As indicated in the table above,no receiving locations exceed 6 dBA above the Existing Condition sound
levels.NYSDEC evaluation criteria categorizes this as no impact.The greatest predicted increase would
be 4 dBA at the residence at Receiver R2. Furthermore, the projected sound levels also meet the
conditions of the Noise Code at all receiving locations.The results of the analysis show that in the Build
Condition that mitigation measures would not be required.
3.7.3 Proposed Mitigation
The proposed action would not result in any significant adverse impacts with regards to noise.The proposed
action has incorporated the following measures that effectively mitigate any potential adverse impacts during
the excavation and construction phases:
• Construction activities will be limited to Monday to Saturday from 7:00 am to 7:00 pm in
accordance with the Noise Code. No work would be completed on Federal or State holidays,
or on Sundays.
260
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• In accordance with the Noise Code,excavation phases will be limited from Monday to Friday
from 7:00 am to 5:00 pm. No work will be completed on Federal or State holidays, or on
Sundays.
• During construction phases,work on Saturdays and after 5:00 pm Monday to Friday will only
include vehicle and machinery maintenance and planning. No work will be completed on
Federal or State holidays,or on Sundays.
• Any vehicle which requires the use of a back-up alarm will use a white noise back-up alarm
instead of a single tone beep.
• All trucks and drivers will be instructed to disengage all Jake Brake mechanisms once turning
on to Cox Neck Rod from County Route 48.
• All trucks utilized will be Tier 4 certified by U.S.EPA standards.
3.8 Air Quality
3.8.1 Existing Conditions
As part of this DEIS an Air Quality Evaluation was prepared by PWGC and is included in Appendix S.
The intent and purpose of the Air Quality Evaluation report was to evaluate construction-related
impacts and post-development conditions at SYC. The potential for air quality impacts due to the
proposed action was examined in accordance with the Amended Final Scope adopted by the Town of
Southold Planning Board. Currently, there are no emission sources at SYC that require NYSDEC air
permits,and the proposed construction would not necessitate obtaining any air permits as the addition
of permanent emission sources is not in the proposed scope of the project.
3.8.2 Potential Impacts
Potential Mobile Pollutants
Under the Clean Air Act(CAA),the U.S.EPA regulates National Ambient Air Quality Standards(NAAQS)
for six common air pollutants considered to be harmful to public health and the environment. These
pollutants, known as criteria pollutants, include carbon monoxide (CO), particulate matter (PM),
nitrogen dioxide(NO2),sulfur dioxide(SO2),ozone,and lead.Emissions of volatile organic compounds
(VOCs),nitrogen oxides (nitric oxide [NO] and NO2,collectively referred to as NOx)and other criteria
pollutant precursors are also regulated by the U.S.EPA.
Air pollutants produced by passenger vehicles and construction vehicles, also known as mobile
emission sources,are a contributor of certain criteria air pollutants.Air quality impacts can result from
direct emissions generated by off-road construction vehicles operating onsite, as well indirect
emissions from on-road construction vehicles and passenger employee vehicles traveling to and from
the site. CO, PM, VOCs, and NOx are the main components associated with mobile source emissions
and, therefore, were the pollutants included in the scope of the mobile emission portion of this
261
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
evaluation. The magnitude of air pollutants that would be generated from mobile emission sources
during project construction was estimated and is discussed in more detail in the following sections.
Areas of the United States where the ambient air does do not meet NAAQS are considered non-
attainment or maintenance areas.Currently, Suffolk County ambient air quality is within NAAQS and,
therefore,maintains attainment status for all criteria pollutants.
Pollutants Evaluated
Carbon Monoxide- CO emissions are predominately associated with vehicle sources.This compound
has no odor or color and is produced by combustion engines.Carbon monoxide concentrations tend to
be highly localized and dissipate over relatively short distances. Thus, CO emissions are typically
examined at particular sites where emissions are suspected of being concentrated, such as high
trafficked locations,rather than over larger areas.
Oxides of Nitrogen - NOx are a group of nitrogen-based compounds which include NO and NO2.
Approximately nine-tenths of NOx emissions from vehicle sources are in the form of NO, with the
remainder being NO2. However,atmospheric reactions can transform NO into NO2. NOx reactions in
the atmosphere can also contribute to the formation of ozone,another regulated air pollutant. NO2 is
often analyzed on a regional basis, rather than in local areas, due to the atmospheric dispersal
associated with its formation reactions. The nature of these reactions also presents challenges in
modeling the NO2 emissions associated with specific vehicular activity. It can be expected that NO2
emissions would be small due to the limited increase in vehicle use at the site during and post-
construction.
Particulate Matter - PM is a wide-ranging category of air pollutants from both natural and human
sources.Examples include liquid particles,such as aerosols,as well as solids.Common natural sources
include pollen, salt spray, windblown soil, and volcanic ash. Sources associated with human activity
include solid combustion byproducts from burning fossil fuels and VOCs emitted from industrial
processes. PM is further subdivided into categories based on particle size. PM2.5 represents
particulate matter that is a diameter less than or equal to 2.5 microns while PM10 represents particles
having a diameter less than or equal to 10 microns.Both forms of PM have the capacity to adsorb other
pollutants to particle surfaces.PM2.5 is of special concern since the smaller size of these particles allow
them to enter deeper into the human respiratory tract and damage lung tissue.For the purposes of this
study PM10 emissions were estimated. PM10 values are inclusive of both 10-micron and 2.5-micron
PM.
Volatile Organic Compounds - VOCs are compounds that have a high vapor pressure meaning it will
evaporate readily. Many are manmade chemicals that are either used or produced as a by-product in
the production of refrigerants, paints, and pharmaceuticals or from the combustion of petroleum
products.VOCs play a significant role in the formation of ozone and fine particulates in the atmosphere.
Excessive accumulation of ozone, fine particulates and other gaseous pollutants result in the
production of smog potentially reducing visibility causing respiratory problems.
262
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Mobile Source Evaluation
Short term air quality impacts may occur during the excavation phase of the project; however, long-
term air quality impacts would be inconsequential. Post-development, the addition of stationary
emission sources is not proposed and vehicular traffic due to the expansion would be minimal. The
analysis of the air quality impacts due to construction activities was completed considering the types
of the activities conducted and the type of equipment utilized during each phase.
On-Road Mobile Emissions
Air emissions would be generated from the operation of on-road mobile construction equipment as
well as employee passenger vehicles during construction of the proposed project. Vehicle miles
traveled (VMT) data for each on-road construction vehicle and employee trip were estimated from
roundtrip distances and the number of vehicles and employees based on the activity specific
construction schedule. It was assumed that all on-road construction vehicle equipment would use
diesel fuel and all passenger vehicles would use gasoline. Typical vehicle types would be passenger
car, passenger trucks, and single unit short-haul construction vehicles (U.S. Department of
Transportation Class 7 type vehicle). On-road mobile equipment emission rates for those pollutants
discussed earlier (i.e., CO, NOx and PM) were estimated and are presented in Table 42 below, as
excerpted from Table 4 in the Air Quality Evaluation in Appendix S.It is noted that hydrocarbon (HC)
emission factors were used to calculate VOC values;however,not all HCs are VOC's,therefore,the VOC
estimates are conservative.
The U.S. EPA has developed an online tool to calculate the emissions due to on-road construction
vehicles (Diesel Emission Quantifier).This tool was utilized to estimate on-road construction vehicle
emission levels for the proposed project. It has been assumed that construction vehicles(i.e.,delivery
trucks and trucks removing debris and material from the subject property)would be traveling to and
from the west and within 25 miles of the subject property to the nearest commercial area where a
registered or permitted NYSDEC Part 360 facility and equipment suppliers are most likely to be
located.Twenty-five miles was used in the calculator as a conservative estimate,but it is more likely
that excavated material and suppliers would be located within 15 miles of the proposed project
location.It is estimated that 40 trips would take place to and from the site during a 10-hour workday,
for a five-day workweek.
For the purposes of this analysis,it was assumed that 50 percent of the passenger vehicles would be
light-duty vehicles/passenger cars and 50 percent would be light-duty trucks (two axle, 4 tires) and
that project employees would live within 25 miles of the subject property. It is assumed that the
engines for all the on-road vehicles will meet federal emission discharge standards and it is noted that
the construction company engaged to complete the work has committed to utilize company
multi-occupant vehicles to transport many of the construction workers to the site to minimize the
number of vehicles being utilized and thus minimize associated air emissions.
Emission rates for the passenger vehicles were estimated using the U.S. EPA,Office of Transportation
and Air Quality National Transportation Statistics Table 4-43.The table was generated by the U.S.EPA
using Motor Vehicle Emission Simulation (MOVES) Version 2014b software. MOVES is an emission
modeling system available for download from the U.S. EPA website. As discussed in the Air Quality
263
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Evaluation(see Appendix S),the MOVES software is used to, "estimates emissions for mobile sources
at the national, county, and project level for criteria air pollutants, greenhouse gases,and air toxics."
MOVES incorporates data on vehicle populations, emission rates, and fuel supply information to
estimate equipment emission levels. Calendar year 2020 emission rates were used since the data for
2021 and 2022 are only projected rates.It should be noted the projected emission rates are lower than
2020 emission rates.
264
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 42-Estimated On-Road Vehicle Emission Rates
Construction Phase
Excavation
Excavation Excavation Retaining Wall Drainage Building
Tree Removal Phase I Pha&e2 Construction Construction Construction
2020 Emission
Lig ht-duty gasoline passenger Rates
cars igramstmile)- lbsddaytvehicle lbs pollutantday lbs poftutantiday lbs pollutantiday lbs Wtutantiday lbs pollutantday lbs pollutanuday
Total HG' 0.280 0.0308 1.48 26.46 4.81 1.39 3.70 48.11
Exhaust CC 4.152 0.4573 21.95 392.34 71.33 20.58 54.87 713.34
Exhaust NOx 0.192 0.0211 1.01 1814 3.3,0 0.95 2.54 32.99
Total F1M12.5 0.008 0.0009 0.04 0.76 0.14 0.04 0.11 1.37
Light duty gasoline passenger
trucks
Total HC 0.339 0.0373 1.79 32.03 5.82 1.68 4.48 58.24
Exh a ust CC 5.42,2 0.5971 28.66 512.34 93.15 26.87 71.66 931.53
Exhaust NOx 0.376 0.0414 1.99 35.53 6.46 1.86 4.97 64.60
Total PN12.5 0.011 0.0012 0.06 1.04 0.19 0.05 0.15 1.89
Class 74+Axte Single Unit
Dumpsteriliauter
Total HG' NA 0.0032 0.00 20.22 3.11 0.00 0.16 0.16
Exhaust CC NA 0.0700 0.00 436.95 67.22 0.00 3.36 3.36
Exh a ust NOx NA 0.1246 0.00 777.72 119.65 0.00 5.98 5.98
Total PM2.5 INA 10.0008 10.00 14.80 10.74 10.00 0.04 10.04
...............
Total HG' NA 10.0714 13.27 178.71 113.75 13.07 18.34 1106.50 100tons&
Exhaust CC NA 11.1244 150.61 11341.63 1231.71 147.45 1129.89 11648.23 100 tonsiyr
Exhaust NOx NA 10.1872 13.00 1831.39 1129.41 12.81 113.49 1103.57 100 ionslyr
I Total RN12.5 NA 10.0020 10.06 15.84 10.93 10.05 10.18 1 1.93 1100 tonsNr
H,C-Hyd rota rbon
*Hydrocarbon erntssion factors are used to calculation VOC values.Not all hydrocarbons are VOCs so these estimates are conservative.
*USEPA Estimated National Average Vehicle Emissions Rates per Vehicle by Vehicle Type using Gasoline and Diesel jGrams per mite)
265
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The emission rates were compared to the U.S. EPA General Conformity De Minimis Table. General
Conformity ensures that the actions taken by a federal agency do not interfere with a state's plan to
attain or maintain national standards for air quality or contribute to NAAQS violations.As indicated in
Table 42 above,the anticipated emission rates for each phase of the project are well within the annual
Conformity De Minimis threshold, therefore it is expected that on-road vehicle emission generated
from the project construction would not have a significant adverse impact on air quality.
Off-Road Mobile Emissions
Air emissions would be generated from the operation of off-road mobile construction equipment.The
U.S. EPA has adopted multiple tiers of emission standards, which are based upon engine size and
manufacture year.The engine tier standards were established to reduce soot,smog and other types of
dangerous pollutants that are emitted from diesel engines.The 1998 nonroad engine regulations were
structured as a 3-tiered progression.Each tier involved a phase-in(by horsepower or kilowatt rating)
over several years.The first federal standards(Tier 1)for new nonroad or off-road diesel engines were
adopted in 1994 for engines over 37 KW to be phased-in from 1996 to 2000.In 1998,Tier 1 standards
were introduced for equipment under 37 KW. The more stringent Tier 2 standards took effect from
2001 to 2006,and yet more stringent Tier 3 standards phased-in from 2006 to 2008(Tier 3 standards
applied only for engines from 37-560 kW). In May 2004,the U.S.EPA signed the final rule introducing
Tier 4 emission standards,which were phased-in over the period of 2008-2015.The Tier 4 emission
introduced substantial reductions of NOx (for engines above 56 kW) and PM (above 19 kW). CO
emission limits remain unchanged from the Tier 2-3 stage. Tier 4 equipment, as defined by the U.S.
EPA,correlates to the most recent and most stringent emission standards established by the U.S. EPA
and California Air Resources Board. As excerpted from the Air Quality Evaluation (see Appendix S),
Tier 4 engine certification is applicable to new engines found in off-road equipment including
construction, mining and agricultural equipment, marine vessels and workboats, locomotives and
stationary engines found in industrial and power generation applications. 'As ofJanuary 1,2014,these
emissions standards apply to new engines that power equipment commonly found in most construction
and agricultural applications while new engines manufactured for much larger applications including
marine,locomotives must have met the standard by January 1,2015. These emissions standards apply to
new and remanufactured engines and do not apply to older engines."
This analysis evaluates the potential impacts associated with trucks and equipment that are equipped
with engines that are Tier 3 or Tier 4 compliant for a conservative air quality impact assessment
approach;however,it is noted that the Applicant has committed to utilizing trucks and equipment that
are all Tier 4 compliant. As described above, Tier 4 regulations are the strictest U.S. EPA emissions
requirements for off-highway diesel engines. As such, the use of all Tier 4 compliant trucks and
equipment would further reduce emissions of PM and NOx ensures that federal emission standards
are being achieved.
The type and the number of vehicles varies according to the phase of the construction and the activity
to be executed.The types and quantity of mobile equipment anticipated to be operating onsite during
construction are depicted in Table 1 in the Air Quality Evaluation(see Appendix S),and were provided
by the Construction Manager,Red Rock Industries.
266
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
The excavation phase for removal of 135,000 CY of material is projecting 4,500 CY trailers over a five
to six-month period. During Phase 1,approximately 123,000 CY of material would be excavated and
removed. Based on 30 CY trucks, Phase 1 would generate 4,100 total trips. With 40 trucks available
per day for material removal and time limited to 7:00 am to 5:00 pm five days per week(Monday to
Friday), Phase 1 could be completed in five months. During Phase 2, approximately 12,000 CY of
material would be excavated and removed via the existing access driveway to SYC. Based on 30 CY
trucks,Phase 2 would generate 400 total trips. With 40 trucks available for material removal and time
limited to 7:00 am to 5:00 pm five days per week(Monday to Friday),Phase 2 could be completed in 2
weeks. It is assumed that no more than two trailers are being loaded at any one-time during
excavation.
As indicated in Table 1 in the Air Quality Evaluation in Appendix S of this DEIS, at most, 12 mobile
vehicles would be operating during any single phase of the project. It is not anticipated that the
vehicles/equipment would all be operating concurrently. In accordance with 6 NYCRR Subpart 217-
3,heavy-duty vehicles shall not remain idling for more than five minutes at a time.
Total CO, NOx and PM-10 have been estimated by utilizing U.S. EPA MOVES,Version 2014b software.
As discussed in the Air Quality Evaluation (see Appendix S), to calculate CO2 emissions, MOVES
determines the amount of energy it takes to operate a specific vehicle based on the fuel utilized. By
understanding the energy used to operate the vehicle, the model calculates the gallons of fuel
necessary to operate the vehicle and the CO2 generated by burning the fuel.The model includes default
values based on the fuel type.
The model assumes that all of the carbon in the fuel is converted into CO2,although a small portion is
initially released into the atmosphere as CO.
The results from a MOVES analysis are limited in the extent of data output directly from the software.
The exhaustive data is exported into a HEIDI SQL database, offering an expanded analysis of the raw
data from the MOVES software.The emission rates provided in the output date represents the mass of
the pollutant for a 24-hour day for a population of vehicles. Raw data HeidiSQL outputs have been
included in Appendix A of the Air Quality Evaluation,appended to this DEIS in Appendix S.
The MOVES data was used to determine the hourly and daily emission rates of the four main pollutants
generated from diesel engine emissions, including CO, NOx, VOCs and PM-10. Emission rates were
estimated for all of the off-road mobile construction vehicles anticipated to be operating on site during
each phase of the project.The results are displayed in Appendix B,appended to this DEIS in Appendix
S.
As displayed in Table 43 below,as excerpted from Table 2 in the Air Quality Evaluation in Appendix S,
displays the average per hour rate for each equipment type analyzed. If a type of mobile equipment
proposed to be operating during the construction was not an available, the option in MOVES
equipment type"other"was utilized.
267
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 43-Off-Road Mobile Construction Vehicles Hourly Emission Estimates by Equipment Type
Equipment Type 1CO INOx JVOC I PM-10
Excavator 0.020500 0.044958 0.003787 0.003904
Rubber Tire Loaders 0.120672 0.242864 0.016854 0.021640
Tractors/Loaders/Backhoes 0.279147 0.259793 0.043886 0.040054
Crawlers/Tractors/Dozers 0.060074 0.119737 0.007726 0.009895
Skid Steer Loaders 0.206902 0.193905 0.033570 0.021522
Off-Highway Tractors 0.014715 0.031415 0.001819 0.002018
Dumpers/Te n d o rs 0.000059 0.000620 0.000113 0.000081
Other 0.014578 0.025467 0.001851 0.002375
Federally enforced NAAQS limitations are concentration-based; however, the MOVES software is
limited to generating outputs in units of mass rather than concentrations. Since all U.S. states are
required to comply with U.S. EPA Federal emission standards, potential impacts of the mobile
emissions were evaluated using the threshold values established South Coast Air Quality Management
District in California State (SCAQMD)13,which provide guidance values on a pounds per day basis.As
indicated in Table 3 in the Air Quality Evaluation(see Appendix S),emission estimates are well within
significant threshold values and, therefore, no significant adverse impacts from mobile off-road
emissions would be expected.
Fugitive Dust
Heavy construction is a source of dust emissions that may impact local air quality. Dust emissions
during construction can be associated with activities such as land clearing, ground excavation, earth
moving and building construction, and vehicles moving over temporary roads and the construction
site. Dust emissions can vary substantially day to day, depending on the level of activity,the specific
operations and weather conditions.
Fugitive Dust Evaluation
The Environmental Protection Agency's(EPA's)published emission factors most suited to this project
(from AP-42, Section 13.2.3.3 "Heavy Construction Operations") are based on field measurements of
total suspended particulate (TSP) concentrations from apartment and shopping center construction
projects.The estimated emission factors for construction activity operations are as follows:
TSP Emission Rate = 2.69 megagrams (Mg)/hectare/month of activity = 1.2 tons/acre/month of
activity
These values were utilized to develop overall estimates from construction throughout the site. They
are considered most applicable to construction operations with: (1) medium activity level, (2)
moderate silt contents, and (3) semiarid climate. This emission rate is conservatively high for total
suspended PM and includes particles larger than 10 microns.Particles 10 microns,and those less than
268
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
10 microns, have the capacity to absorb other pollutants to particle surfaces. Particles less than 2.5
microns in size are able to enter deeper into the human respiratory tract causing potential effect.
As discussed in Section 1.2.1 of this DEIS,Table 2 identifies the size of the development areas.The total
area of construction is estimated to be 6.51±acres (see Table 3 in Section 1.2.1 of this DEIS) and the
total project duration is anticipated to be approximately 13 months.Based on these values and the TSP
emission rate of 1.2 tons/acre/month of activity, the total TSP emission rate for the entire project
would be approximately 101.5 tons of TSP,without mitigation.
13 months x 6.51 acres x 1.2 tons/acre/month= 101.5 tons of TSP
This value is extremely conservative and does not account for standard mitigation efforts that are
undertaken during construction to control dust emissions. In order to mitigate the impact of the
generation of fugitive dust during construction, particularly during dry periods, the following
mitigation measures will be employed during construction,as necessary:
• Minimizing the exposed area of erodible earth.
• Applying wet suppression to material piles and unpaved areas when there is visible dust.
• Use of covered haul trucks to move construction material.
• Use of plastic sheet coverings for material piles.
• A material wind barrier consisting of a six-foot fence with filter fabric would be installed
around the northern and western portions of the Construction Excavation Area.
With the implementation of the above measures,there would be no significant adverse impacts created
by fugitive dust generation and the resultant air quality impacts would be avoided.
Carbon Sequestration
Carbon sequestration is the long-term removal or capture process of carbon dioxide from the
atmosphere. Carbon dioxide is naturally captured or sequestered from the atmosphere through
biological, chemical, and physical processes. According to the Intergovernmental Panel on Climate
Change (IPCC), there are five carbon pools of a terrestrial ecosystem involving biomass/organic
material. The five pools are above-ground biomass (living trees and shrubs),below-ground biomass
(live roots), dead mass of litter, woody debris and soil organic matter. When inorganic CO2 is
sequestered directly by plant or other living organisms through photosynthesis or chemical reactions
this process is referred to as carbon fixation. Trees sequester atmospheric carbon through their
growth process and have been suggested as a means to combat increasing levels of atmospheric
carbon. Carbon sequestration in soil is primarily facilitated by plants. The CO2 is removed from the
atmosphere by vegetation,and the carbon is stored in the soil's pool of organic carbon.The dead mass
of litter and debris are not a major carbon pool as they contribute to a small fraction of the forest total
carbon stock.Carbon sequestration is beneficial to the atmosphere because it mitigates CO2 pollution
in the atmosphere.
269
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Carbon Stock Estimate Methodology
A tree survey, where an inventory of tree species and diameter for the area to be cleared, was
established.The data was utilized to estimate carbon stock based on above-ground biomass.Estimates
were determined utilizing formulas for calculating biomass and carbon sequestering factors found in
published sources. As presented in the Air Quality Evaluation(see Appendix S),the following regional
regression equation developed by Barrett and Jastremski(1990)was utilized to calculate the total tree
stem biomass:
Y=bo+bi(D2H)
Where Y is the total tree-stem biomass(in green/live pounds),and the independent variables D and H
are the tree diameter at breast height (in inches) and total tree height (in feet), bo and bi represent
regression coefficients.The regression coefficients,developed by and obtained from the United States
Department of Agriculture,were used for this analysis. Tree height estimates were based on the LUES
recommendation for the species and its growth locations.It was assumed that the trees in the areas to
be cleared are at or near maturity.
Once the green/live biomass was assessed,the dry weight of the tree was estimated.A University of
Nebraska study estimated that approximately 27.5 percent of a tree's green mass is moisture,
therefore,the dry mass would be 72 percent of a tree's green biomass.The carbon content is generally
50 percent of the tree's total weight; therefore, the dry weight was halved to determine the carbon
content total.
Based on the carbon stock value estimated for the trees (above and below-ground biomass), and
estimated carbon stock ratios (Table 44 as excerpted from Table 6 in the Air Quality Evaluation), a
total carbon stock value for the entire forest system (i.e., above-ground biomass and below-ground
biomass) and the remaining three carbon pools (dead mass of litter, woody debris and soil organic
matter)was approximated.The following method was used:
T=B/(17%+6%)
S=T*72%
L=T*5%
W=T*O%,
where,
T=Total C stored in the entire forest system
B=C stored in the trees(above&below-ground),calculated using above methodology
S=C stored in the soil
L=C stored in dead mass&litter
W=C stored in dead wood
270
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 44-Estimated Carbon Stock Ratios
Estimated Carbon Stock Ratios across UK Forests in 2015
Carbon in above-ground biomass(B) 17%
Carbon in below-ground biomass(B) 6%
Carbon in dead wood (W) <1%
Carbon in litter(L) 5%
Soil Carbon (S) 72%
Total Forest Carbon 100•0
Carbon Stock Removal Evaluation
It is estimated that the proposed project would necessitate the clearing of 5.51 acres of forested land
(Coastal Oak-Beech Forest / Successional Southern Hardwood) for the proposed boat storage
buildings and associated appurtenances (see Figure 1 in the Air Quality Evaluation in Appendix S of
this DEIS). Additionally, approximately 123,000 cubic yards of subsurface are anticipated to be
removed during Phase 1 of the excavation and approximately 12,000 cubic yards during Phase 2.As
such,carbon stock loss estimates were evaluated.Carbon stock is the amount of carbon that has been
stored within the forest ecosystem,mainly within living biomass(trees and other vegetation)and soil,
and to a lesser extent,in dead wood and forest litter as the result of CO2 uptake from the atmosphere.
Anything that absorbs more carbon from the atmosphere than is releases is called a "carbon sink."
Because of the complexity of estimating forest carbon stock,and to maximize efficiency for the purpose
of this project,the carbon sequestering evaluation used formulas from published studies to calculate
carbon stock estimates for live adult trees and estimated the associated carbon stock values for the
remaining three carbon pools using the ratio estimates indicated in Table 44 above,as excerpted from
Table 6 in the Air Quality Evaluation(see Appendix S).Studies have estimated that 17±percent of total
forest carbon stock is stored in above-ground biomass, 6±percent is stored in below-ground biomass,
>1± percent is stored in dead wood, 5±percent is stored in forest litter,and 72± percent is stored in
the soil.
Under existing conditions, there are 2,408 mature trees (greater than 6 inches in diameter) at the
subject property. The existing total above-ground green weight was estimated to be approximately
5,721,5801bs.and the total carbon stock is estimated to be approximately 2,488,887 lbs.The proposed
action includes the removal of approximately 650 trees although field adjustments are likely to reduce
this number to approximately 630. Assuming 650 trees are removed,there would remain 1,758 trees
on the subject property. As a result of the tree removal, it is estimated that the above-ground green
weight would decrease by 1,799,078 pounds, and the total loss of stored carbon due to tree removal
would be approximately 782,599 lbs.Carbon stock estimates for the trees to be removed can be found
in Appendix C of the Air Quality Evaluation in Appendix S of this DEIS. Using the distribution ratios in
Table 44 above,carbon storage loss due to all five carbon pools is estimated in the table below.
271
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 45-Carbon Dioxide Storage Lost Estimates
Carbon Pool Type Estimated On-site loss of Stored Forest Carbon(lbs.)
above-ground biomass 578,443
below-ground biomass 204,156
dead wood 8,999
litter 170,130
Soil 2,449,875
Total Forest System 3,402,604
As indicated above, this analysis considered 650 trees for removal; however, the actual number is
expected to be less because of field adjustments that would be made to avoid tree removal particularly
in the area of the proposed haul road. According to the project engineer,field adjustments of 5-10 feet
could reduce the number of trees for removal by approximately 20-to-30.
Additionally,it should be noted that the carbon stock ratios from Table 45 are estimates for a variety
of forest types and is not specific to Long Island. The soil characteristic analysis that was completed
for the site by PWGC in July 2021 (see Appendix H of this DEIS) has indicated that the Construction
Excavation Area is made up of predominantly sandy material. Several soil borings were collected by
PWGC in the Construction Excavation Aare to determine soil characteristics (see Figure 1 in the Air
Quality Evaluation in Appendix S of this DEIS).Soil boring logs for all nine borings obtained by PWGC
have indicated the entire depth of the boring, continuous to 12 feet at all locations, consisted of
predominantly sand with little to no organic material with the exception of a less than 6-inch topsoil
in some areas.As discussed earlier,carbon sequestering removal ability in soil is directly related to the
content of organic material, therefore it can be assumed that the carbon stock ratios are an
overestimate.
There are many uncertainties when evaluating carbon fluxes from vegetation growth and land-use
change in the global carbon cycle. This is not considered to be a significantly sized clearing area and,
therefore,adverse impacts due to tree clearing/carbon stock loss are considered negligible. It is also
noted that regulations for the removal of carbon sinks do not exist at the local, state or federal level;
however,the proposed clearing is consistent with the prevailing bulk and dimensional requirements
of the M-I I zoning district set forth in the Town Zoning Code(Chapter 280).Zoning permits a maximum
lot coverage of 30 percent,and the proposed plan includes 24.7 percent lot coverage.
Carbon Stock Loss Mitigation Efforts
Carbon Sequestration due to Hard Clam Farming
As discussed earlier in this Section of the DEIS and in the Air Quality Evaluation (see Appendix S),
carbon sequestration is the long-term removal or capture process of carbon dioxide from the
atmosphere. Carbon fixation or carbon assimilation is the process by which living organisms convert
inorganic carbon, particularly in the form or carbon dioxide, into organic compounds. SYC currently
funds and hosts a shellfish restoration program operated by CCE Marine Program at its facility and has
272
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
committed to being a FLUPSY host through 2030. Last year, approximately 6.0 million clams were
harvested (and over 10 million clams were harvested over the last four years), and the program
expects to continue to harvest a minimum of 1.5 million clams annually. In addition to their filtration
abilities,hard clams also benefit the ecosystem by acting as a carbon sink.CO2 dissolves in water and
is incorporated by shell-producing organisms into calcium carbonate (CaCO3). CaCO3 from mollusks
and other organisms can persist indefinitely as limestone,providing a long-term sink for atmospheric
CO2. Studies have shown that almost half of the CO2 fixed biologically annually is due to marine
organisms.The clam harvesting will help offset the carbon stock loss due to the tree removal.
It is estimated that on average that the shell of a marketable hard clam (about 1" in shell height and
less than 2"in length)contains 2.93 grams of carbon and the farming program is expected to result in
the harvesting of 1.5 million clams annually.Thus,the projected 1.5 million clams harvested annually
have the potential to sequester 9,680 lbs.of carbon. As such,this program has the beneficial impact of
carbon sequestration. It is noted that the number of clams harvested have well exceeded the minimum
goal of 1.5 million/year. As such,this sequestration number provided herein represents the minimum
expected annually.
Supplemental Planting
The proposed action includes the planting of 135 trees, including 95 pitch pine trees (minimum 4-5
feet height)and 40 trees consisting of staghorn,sumac,and shadbush to offset carbon stock loss in the
Project Area. The planting of 135 pine trees would reduce the carbon sink loss from the assumed 650
trees(for the purpose of this analysis,as described above)to 515 trees. Using the same methodology
discussed earlier in this section, it is estimated that 95 adult pitch pine trees would store 80,191 lbs.
(40±tons) of carbon,decreasing total carbon storage loss(above&below-ground biomass)from 391
tons to 351 tons. This decrease does not include the 40 additional small trees,which would have some
additional benefit.
Accordingly, based on the above, no significant adverse air quality impacts would result from the
proposed action.
3.8.3 Proposed Mitigation
The proposed action would not result in any significant adverse impacts to air quality.The proposed action has
incorporated the following measures that effectively mitigate any potential adverse impacts during the
excavation and construction phases,and post-development conditions:
• To minimize the generation of fugitive dust during construction, particularly during dry
periods,the following mitigation measures will be employed:
o Minimizing the exposed area of erodible earth.
o Applying wet suppression to material piles and unpaved areas when there is visible
dust.
o Use of covered haul trucks to move construction material.
o Use of plastic sheet coverings for material piles.
o A six-foot fence with filter fabric would be installed around the northern and western
portions of the Construction Excavation Area.
273
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• In accordance with 6 NYCRR Subpart 217-3, heavy-duty vehicles will not remain idling for
more than five minutes at a time.
• The use of all Tier 4 certified trucks and equipment will further reduce emissions of PM and
N Ox.
• The projected 1.5 million clams harvested annually have the potential to sequester 9,680 lbs.
of carbon. As such,this program has the beneficial impact of carbon sequestration.
• The proposed planting of 95 pitch pine trees will store 80,191 lbs. (40± tons) of carbon,
decreasing total carbon storage loss (above&below-ground biomass) from 391 tons to 351
tons.
3.9 Social and Economic Impacts
3.9.1 Existing Conditions
Existing Services Provided by SYC
The subject property has been occupied and used for maritime purposes for over 60 years. As
indicated in Section 1.1 of this DEIS, SYC currently operates a marina with 45 boat slips (of which,40
are active and others remain open for fueling or service access) with associated ramps, fueling and
maintenance services,and is developed with seven buildings to support its operation. SYC has a boat
and yacht sales operation on the property and also provides for the storage of boats in the off-season.
In addition, several boats in the commercial fishing industry rely upon SYC for dockage and
maintenance. SYC is also a designated host for the CCE shellfish restoration efforts and has FLUPSY
units housed at SYC.
Existing Employment and Taxes at SYC
SYC currently employs 17 full-time staff directly at this facility. For all six of its Suffolk County
locations, SYC paid $7.46 million in payroll in 2020, with over $347,000 in state withholding taxes
being generated. Additionally, over $2.7 million in sales and real estate (property) taxes were
generated in 2020(over$2.5 million in sales tax and$201,867 in real estate taxes).
Economic Impacts of SYC
An evaluation of the projected economic impacts of the proposed action was performed utilizing the
Association of Marina Industries (AMI) Marina Economic Impact Calculator(MEIC),which calculates
the impact on the local economy based on the facility gross revenues,which is inputted by the user.52
As excerpted from https://marinaassociation.org/meicdoc,the MEIC"estimates the economic impacts
generated by marina operations in seven different regions of the US.The impacts are estimated using
economic multipliers generated with an IMPLAN input-output model for each region(IMPLAN Group,
LLC). Multipliers are mathematical calculations used to estimate the additional economic activity or
impacts that occur as a marina's revenues and earnings ripple through a regional economy. In basic
terms,for the marine industry to provide a service to consumers,it must purchase products(i.e.Docks,
lines) and services (i.e.Insurance) from other companies. Each of these vendors must also buy goods
52 https. �marinaassociation.org ureic
274
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
and services." The MEIC calculates these as direct,indirect,and the induced effects. As excerpted from
the AMI:
1. Direct effects take place only in the industry immediately affected: if a marina lays-off 5
employees,the marine industry loses 5 employees.
2. Indirect effects concern inter-industry transactions: if a marina closes it will no longer need
locally produced materials or services. This will affect all of their suppliers,possibly resulting in
a further loss of a few more jobs.
3. Induced effects measure the effects of the changes in household income:laid-off employees of a
marina and its suppliers may reduce what they spend in restaurants and shops since they are no
longer employed. These changes affect the related industries.
It is noteworthy that AMI estimated the total economic impact (direct, indirect and induced) of the
marina industry as a whole.As excerpted, "AMI estimates that 11,500 U.S. marina businesses had an
$18 billion economic impact ($5 billion direct) and supported an estimated 105,000 full or part-
time/seasonal employees. The five largest marina industry states,including Florida,California,Texas,
New York and Massachusetts,account for$7.8 billion of this economic output."
The MEIC also calculates local, state and federal taxes. The specific types of taxes estimated include
social insurance tax(employer and employee portion of payroll taxes),sales tax,property tax,motor
vehicle licenses, severance tax, corporate profits tax, personal income tax,and various fees and fines
(non-taxes).The taxes on production and imports are part of the business taxes.
Existing Economic Impacts of SYC
The MEIC for SYC is included in Appendix E of this DEIS. For 2018,2019 and 2020,the Annual Revenue
Regional Comparison, Summary of Economic Impacts, Economic Impacts by Major Industry Group,
State and Local Tax Impacts,and Federal Tax Impacts were generated based upon the gross revenues
inputted by SYC. The following summarizes the existing economic impacts of SYC in 2020,as excerpted
from the MEIC:
275
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 46-Summary of Economic Impacts-SYC 2020
Impact Type Employment Industry Output Value Added Labor Income
(Jobs) (GDP)
Direct 49 $5,441,812 $3,874,966 $3,109,867
Indirect 10 $2,207,661 $1,265,784 $777,737
Induced 71 $13,509,124 $8,688,104 $5,427,700
Total Impact 124 $21,292,428 $13,992,023 $8,921,523
Notes:
• "Industry Output"represents sales revenues.
• "Value Added" is a broad measure of net economic activity that is comparable to the Gross
Domestic Product (GDP), and represents the sum of labor and property income, taxes on
production and imports,and capital consumption(depreciation).
It is noted that each of the impact types are more fully described in the Economic Impacts by Major
Industry Group included in the MEIC. Regarding the direct jobs, it is important to note that these
include jobs that are directly related to the total revenue in their direct jobs count. For example,
Construction, Manufacturing,Wholesale Trade,Transportation and a portion of Finance &Insurance
which then adds up to their total of direct jobs count(see Economic Impacts by Major Industry Group
terminology in the MEIC,included in Appendix E of this DEIS).
The existing local,state and federal tax impacts of SYC were also calculated for 2018, 2019 and 2020.
As of the most current year evaluated (2020),the total local,state and federal tax impact of SYC was
$3,624,706.
276
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 47-Summary of Local,State and Federal Taxes-SYC 2020
STATE AND LOCAL TAX IMPACTS
Description Tax
Dividends $2,691
Social Ins Tax-Employee Contribution $3,676
Social Ins Tax-Employer Contribution $7,106
Tax on Production and Imports:Sales Tax $470,139
Tax on Production and Imports:Property Tax $610,126
Tax on Production and Imports:Motor Vehicle Lic $8,680
Tax on Production and Imports:Severance Tax $204
Tax on Production and Imports: Other Taxes $72,958
Tax on Production and Imports:S/L NonTaxes $1,898
Corporate Profits Tax $75,786
Personal Tax:Income Tax $248,778
Personal Tax:NonTaxes(Fines-Fees) $32,338
Personal Tax:Motor Vehicle License $7,065
Personal Tax:Property Taxes $4,644
Personal Tax: Other Tax(Fish/Hunt) $2,418
Total State and Local Tax $1,548,495
FEDERAL TAX IMPACTS
Social Ins Tax-Employee Contribution $476,184
Social Ins Tax-Employer Contribution $426,869
Tax on Production and Imports:Excise Taxes $86,924
Tax on Production and Imports:Custom Duty $35,996
Tax on Production and Imports:Fed NonTaxes $9,155
Corporate Profits Tax $306,453
Personal Tax:Income Tax $734,642
Total Federal Tax $2,076,211
277
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Total Local,State&Federal Tax $3,624,706
As part of the MEIC,the SYC revenues for each year are compared to other marinas in the region. As
of the most current year evaluated(2020),SYC's regional comparison is as follows:
Table 48-Annual Revenue Regional Comparison-SYC 2020
Activity SYC Revenue Revenue Regional Revenue Percentage
Percentage Percentage(%) Difference
M
Boat Sales $16,000,000 85.72 4.8 80.92%
Fuel Sales $171,637 0.92 18 -17.08%
Merchandise Sales $627,833 3.36 4.7 -1.34%
Boat Storage $603,160 3.23 6.7 -3.47%
Lease Revenues $0 0 13.3 -13.3%
Boat Rentals $0 0 0.1 -0.1%
Food&Beverage $0 0 0.6 -0.6%
Services
Boat Service $1,262,936 6.77 6 0.77%
All Other Activities $0 0 45.8 -45.8%
As indicated above, SYC's revenue from boat sales is approximately 86 percent of its total revenue,
which is nearly 81 percent higher than the regional marinas. However,its revenue from boat storage
is below that of the region by approximately 3.47 percent.
3.9.2 Potential Impacts
Proposed Services
Upon implementation of the proposed development, SYC would have two new buildings (52,500 SF
and 49,000 SF) for the sole purpose of indoor, heated storage for larger vessels (i.e., yachts). The
existing storage buildings would remain the same and a reconfiguration of the staging areas and dry-
dock storage is not proposed. Boat owners who typically store their boats in warmer climates in the
winter and those looking to store their boats in climate-controlled space locally are the anticipated
new yacht customers. It is anticipated the boat owners would be existing customers who currently
dock at SYC or Strong's Water Club,new yacht customers from the surrounding Southold community,
as well as other owners on Long Island,Westchester County,and in the States of Connecticut and New
Jersey. The boats would arrive to the facility at the close of boating season (i.e., October-November)
278
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
via Mattituck Inlet,be hauled from Mattituck Creek via the existing 85-ton travelift and moved to the
boat storage buildings. At the beginning of the next boating season (i.e., April-May), the same boats
would be removed from storage,returned to Mattituck Creek via the 85-ton travelift,and exit through
Mattituck Inlet. It is estimated that approximately 88 boats per season would be stored in the new
buildings.
Additionally, the following facility improvements are proposed: the provision of potable water via
public water connection,two I/A OWTS for sanitary waste management(one of which would serve as
a replacement system for the current individual on-site sanitary system that serves the office,marina
and other SYC buildings and one new system), formalization of on-site stormwater management
system,landscaping,lighting improvements,and additional parking spaces to support the existing and
future operations of SYC.Typical operations would continue during construction.
The repair,maintenance, fueling,washing and detailing of boats would occur in the same manner as
they currently do on-site. Repair and maintenance would occur within the on-site buildings and/or at
the existing dock. All materials used for such services are marine grade and common to the maritime
industry. It is noted that the proposed action would not alter the maximum amounts of chemicals and
antifouling paint stored on-site and any spills or releases observed either on land or into the water
would be required to be reported in compliance with state hazardous material spill response protocol.
The sale of marine fuel would continue under post-development conditions and any spills or releases
observed either on land or into the water would be required to be reported in compliance with state
hazardous material spill response protocol.
The offering of indoor storage for larger vessels post-development is a service that is currently offered
to smaller vessels at SYC. The only exception is that the type of vessels to be stored cannot be brought
to SYC via trailers on roadways (which does occur with smaller vessels for winter storage) but must
arrive to and leave the site via Mattituck Creek and the existing boat lift at SYC. The existing 85-ton
travelift used for the existing operation is sufficient to accommodate the yachts of the proposed action.
Projected Employment Post-Development
Upon implementation of the proposed action,SYC projects that an additional 11 employees would be
added to increase the number of employees at SYC to 28.The number of employees on-site would vary
seasonally.Currently,from Monday through Friday, 17 full-time employees are on-site.On Saturday's
from approximately March 15 through September 15 (season), 12 employees are on-site and from
September 16 through March 15 (off-season),the number decreases to four. On Sunday's during the
season,approximately four employees are on-site and during the off-season,only one employee is on-
site.The anticipated 11 new employees are anticipated to primarily be on-site on weekdays only.
These new employees would be for the boatyard only and include positions for boat maintenance,
machinery operators, engine technicians, administrative, and wood and fiberglass re-finishing
personnel.
In addition to the benefits presented above, as discussed in Section 2.2 of this DEIS, upon
implementation of the proposed action,the method of sanitary disposal would be upgraded from one
individual on-site subsurface system to an I/A OWTS,which is consistent with the Town and County's
intent to reduce nitrogen loading from sanitary waste. Also, a stormwater management system
279
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
comprised of leaching pools and French drains which includes the use of pervious gravel would be
installed to accommodate and recharge stormwater runoff from 7.77±acres,inclusive of the Project
Area as well as additional surrounding land area. Finally,the proposed extension of the water main
for connection to the SCWA would provide the opportunity for surrounding properties with private
water wells to connect to public water. These benefits have been further discussed in Section 2.2 of
this DEIS.
Potential Economic Impacts of SYC
Increased Assessed Value
Consultations were undertaken with the Southold Assessor for post-development tax revenue. In
correspondence dated June 25,2021(see Appendix E),the Southold Assessor advised that the increase
in the Assessed Value would be approximately $41,000. With no exemptions the increase in the
property taxes would be estimated at$59,450 based on the 2020-21 tax rate. However,the property
would be eligible for the 485-b Business Investment Exemption,which is based on a sliding scale over
10 years. For the first 3 years, there would be a 50 percent reduction for the increased assessment
attributable to the two new buildings. For each year after,the reduction would decrease as follows:
Year 4:40 percent Year 5: 30 percent,Year 6: 20 percent,Years 7 thru 9: 10 percent,and Year 10: 5
percent.
Economic Impact Analysis
As part of the economic impact analysis,the projected gross revenues over the next 4 years,inclusive
of 2024 with assumed project completion were inputted into the MEIC to generate the same outputs
(Annual Revenue Regional Comparison, Summary of Economic Impacts, Economic Impacts by Major
Industry Group,State and Local Tax Impacts,and Federal Tax Impacts). As indicated in Appendix E of
this DEIS, the projected economic output for 2022, 2023 and 2024 were performed. For 2021, the
Applicant has advised that 2020 numbers are similar,and thus,was not performed.
As excerpted from the MEIC analysis,the potential direct,indirect,and induced impacts are included
in the table below. As indicated in Section 3.9.1 of this DEIS,the direct effects are those take place only
in the industry immediately affected (e.g., Construction, Manufacturing, Wholesale Trade,
Transportation and a portion of Finance&Insurance). As indicated below,the projected direct impact
is 60 jobs.
The indirect effects are related to inter-industry transactions (e.g.,if a marina closes it will no longer
need locally produced materials or services.This will affect all of their suppliers,possibly resulting in
a further loss of a few more jobs). Finally, the induced effects measure the effects of the changes in
household income.
280
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 49-Summary of Potential Economic Impacts-SYC 2024
Impact Type Employment Industry Output Value Added(GDP) Labor Income
(Jobs)
Direct 60 $6,844,920 $4,807,928 $3,968,941
Indirect 11 $2,823,138 $1,608,822 $980,102
Induced 82 $16,815,081 $10,810,228 $6,748,452
Total Impact 146 $26,669,089 $17,444,454 $11,143,885
As indicated in Section 3.9.1 of this DEIS,as of the most current year evaluated(2020),the total local,
state and federal tax impact of SYC was$3,624,706. Upon implementation of the proposed action,the
total tax revenue is estimated to increase to$4,478,039.
Table 50-Summary of Local,State and Federal Taxes-SYC 2024
STATE AND LOCAL TAX IMPACTS
Description Tax
Dividends $3,438
Social Ins Tax-Employee Contribution $4,584
Social Ins Tax-Employer Contribution $8,861
Tax on Production and Imports:Sales Tax $567,174
Tax on Production and Imports:Property Tax $736,055
Tax on Production and Imports:Motor Vehicle Lic $10,473
Tax on Production and Imports:Severance Tax $246
Tax on Production and Imports: Other Taxes $88,016
Tax on Production and Imports:S/L NonTaxes $2,291
Corporate Profits Tax $96,708
Personal Tax:Income Tax $310,100
Personal Tax:NonTaxes(Fines-Fees) $40,307
Personal Tax:Motor Vehicle License $8,807
Personal Tax:Property Taxes $5,789
Personal Tax: Other Tax(Fish/Hunt) $3,014
Total State and Local Tax $1,885,845
FEDERAL TAXES
281
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Social Ins Tax-Employee Contribution $593,678
Social Ins Tax-Employer Contribution $532,417
Tax on Production and Imports:Excise Taxes $104,865
Tax on Production and Imports:Custom Duty $43,424
Tax on Production and Imports:Fed NonTaxes $11,046
Corporate Profits Tax $391,051
Personal Tax:Income Tax $915,729
Total Federal Tax $2,592,194
Total Local,State&Federal Tax $4,478,039
As part of the MEIC,the SYC revenues for each year are compared to other marinas in the region. As
of the latest projected year evaluated(2024),SYC's regional comparison is as follows:
Table 51-Annual Revenue Regional Comparison-SYC 2024
Activity Your Revenue Revenue Regional Revenue Percentage
Percentage Percentage(%) Difference
Boat Sales $17,500,000 81.85 4.8 77.05%
Fuel Sales $220,000 1.03 18 -16.97%
Merchandise Sales $760,000 3.55 4.7 -1.15%
Boat Storage $1,100,000 5.14 6.7 -1.56%
Lease Revenues $0 0 13.3 -13.3%
Boat Rentals $0 0 0.1 -0.1%
Food&Beverage $0 0 0.6 -0.6%
Services
Boat Service $1,800,000 8.42 6 2.42%
All Other Activities $0 0 45.8 -45.8%
As indicated above,SYC's projected revenue from boat sales in 2024 is approximately 82 percent of its
total revenue,as compared to the current 86 percent(see Table 48)and nearly 77 percent higher than
the regional marinas. However,its revenue from boat storage is projected to increase to approximately
5.14 percent of its total revenue,which is below that of the region by approximately 1.6 percent but
higher than the current percentage of 3.23 percent (see Table 48). Fuel and merchandise sales are
projected to slightly increase by approximately 0.1 percent and 0.2 percent, respectively (see Table
48). Boat service is projected to increase by approximately 1.65 percent(see Table 48).
282
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Impacts Associated with Ignitable Sources
The Amended Final Scope requires,in this section of the DEIS,that"the threat of fire and explosion on
site from all ignitable sources"be evaluated. It is noted that the subject property is within the service
area of the Mattituck Fire Department and consultations were undertaken with the Mattituck Fire
Department as well as the Southold Fire Marshal (see Appendix P). As indicated in the reply
correspondence dated July 27,2021,Chief Ed Rittberg of the Mattituck Fire Department indicated that
the Mattituck Fire Department"has the capability to handle any fire situation on the proposed plan
with the additional hydrant that is being installed."
Reply correspondence was also received from the Southold Fire Marshal,dated June 24,2021,wherein
both passive and active fire protection measures were provided, as well as a list of specific items to
consider during the design,construction and maintenance of the proposed project to manage the risk
of a fire event (see Appendix P). In said correspondence,the Fire Marshal recommended a 150-foot
Fire Department access area from all exterior walls of the two proposed buildings, and a fire safety
plan. However,the Mattituck Fire Department's correspondence (explained above)was accepted by
the Fire Marshal as adequate for not providing the recommended access area;however,the Fire Safety
Plan was still recommended (see letter dated August 19, 2021 in Appendix P). In response to same,
SYC has developed a Fire Safety Plan and a copy of same is included in Appendix P. The Fire Safety
Plan provides hazard locations, utility and water supply information, and emergency procedures for
its employees. Accordingly, based on the above-described coordination with both the local fire
department and Town Fire Marshal, the proposed action would not create any potential fire safety
issues.
3.9.3 Proposed Mitigation
The proposed development would not result in any significant adverse social or economic impacts. As such,
mitigation is not required. Regarding fire safety,the following mitigation has been incorporated:
• At the recommendation of the Town Fire Marshal, a Fire Safety Plan has been prepared to
provide hazard locations,utility and water supply information,and emergency procedures for
its employees.
283
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.10 Construction-Related Impacts
3.10.1 Purpose and Need for the Proposed Excavation Program
Based on the Excavation Phasing Plan (see Appendix C)and site data provided by the project engineer,
the Project Area includes is limited to the 6.51±acres,which includes the upland area to be excavated
and/or cleared as well as those land areas on the existing SYC facility where infrastructure
improvements would be undertaken.Within the Project Area,the Construction Excavation Area (i.e.,
the upland area proposed for excavation and regrading to Elevation 10± AMSL is 4.59± acres. As
described in Table 3 in Section 1.2.1,the proposed action would impact approximately 0.67±acre of
land in the R-80 zoned portion of the subject property for the proposed haul road inclusive of 0.13±
acre of forested area and 0.54± acre of meadow/brushland (Successional Shrubland) would be
removed. The remaining 5.84±acres of land are within the M-II portion of the subject property. Of
this 5.84±acres, approximately 5.38±acres of woodland and 0.29±acre of bare earth (unvegetated)
land would be removed. The remaining land area includes impervious and pervious(gravel and stone
blend)areas that would be modified within the Project Area for post-development conditions.
The proposed excavation is required in order to construct the proposed buildings at similar elevation
to the bulkhead and boat lift. The types of vessels that are desired to be stored indoors cannot be
brought to the site via roadway,i.e.,trailers. They must be lifted from the water and hauled via a boat
lift that cannot ascend steep inclines. As such, the proposed action intends to cut and remove soil
material to reduce the average grade from 50 feet AMSL to 10 feet AMSL.
As discussed above and in Sections 1.1.2 and 3.1.2 of this DEIS, siting the proposed action within the
Project Area is consistent with the over-60-year history of maritime use of the property. The proposed
buildings are permitted within the M-II zoning district and would serve a market demand for larger
boat owners that currently use local waters for recreation.
3.10.2 Description of Proposed Construction Schedule and Activities
As discussed in Section 1.4.1 of this DEIS,the proposed action would be constructed over the course of
approximately 13 months.The excavation and removal of material associated with site clearing would
take approximately 5 to 6 months based upon loads of 30 CY per truck.Phase 1 of the excavation,which
would remove 123,000± CY of material from a 3.79± acre area, would take 5 to 6 months and
commence in mid-December 2023. Phase 2 of the excavation, which would remove 12,000± CY of
material from a 1.25±acre area,is estimated at 2 to 4 weeks and would commence on or around May
2023.In total, 135,000±CY of material would be removed for the proposed action. It is noted that the
estimated volume of material has been calculated using AutoCAD based on the current topographic
survey and proposed finished elevations and that a swell factor does not need to be considered.
As outlined on the Excavation Phasing Plan (see Appendix C),the clearing of the area of disturbance
would include the following:
1. A 1,454± foot crushed concrete haul road would be constructed from the proposed
excavation area to West Mill Road,as shown on the Haul Road Plan in Appendix C;
284
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
2. Topsoil would be stripped from the excavation area and stockpiled on the site for use
during site restoration.Stockpiled topsoil would be stabilized with temporary vegetation
to prevent dust and erosion.The stockpile would be a maximum height of 15 feet;
3. Sand and gravel would be excavated using front end loaders or similar portable
excavation equipment;
4. The bottom elevation of the proposed excavation would be 10 feet;and
5. Bank slopes would not exceed 1 on 3.
The removal of excess material from the subject property would include the following:
1. Sand and gravelly sand would be loaded into dump trailers for removal from the site.
2. The proposed haul road would be stabilized to allow the passage of 22-wheel, 30-yard
dump trailers.
3. The proposed haul road would be regraded periodically, and water applied when
necessary to reduce windblown sand and dust. Additionally, a six-foot fence with filter
fabric would be installed around the north and west portions of the construction area for
dust control.
4. A sweeper would be employed daily for road maintenance during the excavation phases.
The project schedule is as follows:
• Prior to site preparation, field inspections would occur to identify the presence of the
eastern box turtle and relocation of any observed turtles to on-site areas that would not
be disturbed.
• Site Preparation (Tree Removal and Grubbing) and Haul Road Construction
(Approximately 2 Weeks): The site preparation phase would occur over two weeks and
would include tree removal and grubbing. As indicated in the Construction Details (see
Appendix F), during this phase, the following equipment would be staged and used on-
site: excavator, feller buncher, woodchipper, tub grinder, and payloader. All of this
equipment would be assigned an operator and approximately four laborers are expected.
One trailer with driver is expected daily during this phase as well.
During this phase,the proposed crushed concrete haul road would be constructed from
the proposed Construction Excavation Area to West Mill Road,as shown on the Excavation
Phasing Plan and Haul Road Plan in Appendix C. This haul road would be used for the
entirety of Phase 1 and would remain as an emergency access road post-construction. The
haul road would dead-end at the top of the slope and could be used to direct water down
from the higher elevation onto a structure fire. There would be no access for vehicles or
personnel past that point. According to the project engineer,there are no slope issues for
the haul road.The estimate of RCA required to provide a six-inch horizon for the haul road
and shoulders out on West Mill Road is approximately 700 CY.
As noted in Section 1.4.1 of this DEIS,the proposed entrance to the temporary haul road
was shifted from the original design to increase the buffer distance to the nearest
residential properties. The proposed haul road was shifted to the south on West Mill Road
and is located approximately 145± feet south of the single-family residence located at
285
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
4105 West Mill Road. Internally, the haul road was shifted to maintain a separation
distance of approximately 259 feet to the single-family residence located at 5106 West
Mill Road.
After installation of the haul road,a temporary guard booth (5-foot by 5-foot) would be
placed proximate to the ingress/egress. Its purpose would be to house a staff member
responsible for directing incoming trucks,employees,and inspection of exiting trucks to
ensure all loads are covered. Should the pandemic still be a concern,the staff member
would direct drivers and employees of proper site safety protocols.
• Phase 1 (Excavation): Phase 1 would be completed in approximately five-to-six months
with a commencement date of mid-December 2023. During Phase 1, approximately
123,000 CY of material would be excavated and removed. Based on 30 CY trucks, Phase
1 would generate approximately 4,100 total trips. With 40 trucks available for use and
time limited to 7:00 am to 5:00 pm five days per week(Monday to Friday),Phase 1 could
be completed in approximately 20 weeks. Also, during this phase, the following
equipment would be used on-site:two payloaders,two excavators,one fuel truck/water
truck, and two bulldozers. All equipment with exception to the fuel truck/water truck
would remain on-site. Each would be assigned an operator and additional staff on-site
would include the construction manager, site safety supervisor, two flagmen, and four
laborers.
• Phase 2 (Excavation): Phase 2 would be completed in approximately 2 to 4 weeks with a
commencement date of May 2024. During Phase 2,approximately 12,000 CY of material
would be excavated and removed. Based on 30 CY trucks, Phase 2 would generate
approximately 400 total trips. With 40 trucks available per day and time limited to 7:00
am to 5:00 pm five days per week(Monday to Friday),Phase 2 could be completed in two
weeks.All of the equipment detailed in Phase 1 above would remain on-site with the same
staff. At the completion of Phase 2,the temporary guard booth would be removed, and
access would be gated to prevent unauthorized entry.
• Phase 3 (Construction): Phase 3 would be completed in approximately six (6) months
with a commencement date of May 2024. During Phase 3,the construction of buildings,
parking area, retaining wall, and other infrastructure (drainage, water and sanitary)
would be undertaken. It is anticipated that Phase 3 would generate approximately 60
truck trips for the construction of the retaining wall and an additional 101 truck trips for
the two boat storage buildings (including trucks for concrete foundation and material
delivery). A similar guard booth would be situated along the existing internal driveway
to direct incoming deliveries and employees, to inspect exiting vehicles, and to enforce
safety protocols.
As indicated in the Construction Details(see Appendix F),the retaining wall construction
would be approximately three weeks and would require the following equipment: one
payloader, one excavator, one skid steer, and one mini excavator. All equipment would
be assigned an operator and four laborers would be on-site. It is noted that during
construction of the retaining wall, drainage infrastructure and building foundations
would be performed. Additional equipment to be used on-site for this work include two
286
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
payloaders, one excavator, one fuel truck, two skid steers, one mini excavator, one
bulldozer, one scissor lift, and one telescopic forklift. Other than the fuel truck, all
equipment would remain on-site. Each would be assigned an operator and additional staff
on-site would include the construction manager, site safety supervisor, and laborers
would range from 20 to 60 workers.
During the construction phase, it is expected that light duty crews would work on
Saturday with minimal truck activity.Workdays are planned for Monday-Saturday with
various hours between 7:00 am and 7:00 pm pursuant to §180-6 Prevention of Noise -
Standards of the Town Code.
It is noted that the proposed construction schedule is a maximum time period and considers delays
that could occur from unexpected weather and task delays. Task delays could be expected during
unexpected snow events or wet weather during site preparation,which would impact work on the site.
However,the construction schedule provided in this DEIS includes over-estimates should delay occur.
A construction management company and on-site supervisor in close coordination with the Applicant,
would monitor and be responsible for maintaining the overall schedule. Regarding impacts associated
with COVID-19(as requested in the Amended Final Scope for the DEIS),all State and Federal mandates
would be followed although daily advances suggest that no significant delays would be expected.
3.10.3 Potential Impacts
Site Preparation and Vegetation Removal
During site preparation, which would occur over approximately two weeks and would include tree
removal and grubbing, construction equipment would remain on-site to limit roadway activity for
transport. All equipment that is proposed to be used and stored on-site during preparation,excavation
and construction would be Tier 4 certified by U.S. EPA standards. Tier 4 equipment,as defined by the
U.S. EPA, correlates to the emission milestone established by the U.S. EPA and California Air Resources
Board. Tier-4 certified equipment includes all, "new engines found in off-road equipment including
construction, mining and agricultural equipment, marine vessels and workboats, locomotives and
stationary engines found in industrial and power generation applications. As of January 1, 2014, these
emissions standards apply to new engines that power equipment commonly found in most construction and
agricultural applications while new engines manufactured for much larger applications including marine,
locomotives must have met the standard by January 1,2015. These emissions standards apply to new and
remanufactured engines and do not apply to older engines."53
As discussed in Section 1.4.1, the following measures would be implemented during all construction
phases to mitigate the impact of noise on surrounding properties:
• No work would be performed on Federal or State holidays,or on Sundays.
• All trucks would be Tier 4 certified by U.S. EPA standards and all gasoline or diesel-powered
machinery would be equipped with adequate mufflers.
53 htt swwweecfr, ov current title 40�chapter I/subchapter U�part 1039
287
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Any vehicle that requires the use of a back-up alarm would use a white noise back-up alarm
rather a single tone beep.
• All trucks and drivers would be instructed to disengage all Jake Brake mechanisms once turning
on to Cox Neck Road from County Route 48.
During construction of the proposed crushed concrete haul road,a 100-foot-long stabilized RCA shoulder
would be constructed south of the haul road entrance to provide for wider turns and safe access for
trucks. The temporary haul road would include a stabilized construction entrance to prevent soil and
loose debris from being tracked onto local roads.Upon entry into the property,a security booth would
be located on the east side of the temporary haul road to house a site manager responsible for directing
trucks to the Construction Excavation Area, inspecting exiting vehicles, and enforcing safety protocols.
The 1,454± foot long haul road would be 30±feet wide and narrow to 16± feet extending east through
the mostly existing cleared areas within the R-80 zoned portion of the subject property.As the haul road
approaches the M-II zoned portion of the subject property, the haul road would widen to 25± feet for
100± feet to match the existing width of the cleared area.As noted earlier in Section 3.4.2 of this DEIS,
the proposed haul road was shifted from the original design to increase the buffer distance to the nearest
residential properties. Specifically,the proposed haul road entrance was shifted south on West Mill Road
to increase the separation distance to the single-family residence located at 4105 West Mill Road, and
internally, the haul road was shifted to increase the separation distance to the single-family residence
located at 5106 West Mill Road. At its closest point, the haul road is located 259± feet west of the
residence at 5106 West Mill Road. This haul road would be used for the entirety of Phase 1 only to
facilitate the removal of excavated material during the initial grading of the site. After Phase 1 is
complete,the haul road would be retained only as an emergency access road by police,fire,or ambulance
vehicles,as necessary.
As discussed earlier in Section 2.1.2,excavation and construction activities were evaluated for vibration
impacts.The geotechnical engineering assessment concluded that the medium to dense soils located in
the area of excavation and construction would enable vibration effects to be limited if pile driving and
sheet pile installation were avoided, which are processes not proposed as part of the proposed action
and therefore,no impacts would result. Additional vibration analyses were undertaken by SoundSense
and are discussed later in this section.
Land Disturbance
The proposed action would result in a total land disturbance of 6.51± acres. During excavation and
construction activities,there is the potential for erosion and sedimentation with prolonged soil exposure
and fugitive dust during dry periods. As noted above, to minimize the potential for erosion and
sedimentation, an Erosion and Sediment Control Plan has been prepared (see Appendix C), which
includes,at minimum,stockpile protection,inlet sediment control devices for storm structure protection,
silt fencing,minimizing the extent and duration of exposed areas,and the construction and maintenance
of a stabilized construction entrance to prevent soil and loose debris from being tracked onto local roads.
All erosion and sediment control measures would be routinely inspected and maintained such that no
sediment would be transported off-site. Additionally,dust control measures would be undertaken with
the use of watering during dry periods, limiting on-site vehicular speeds, and all trucks carting loose
material and construction debris would be covered. Also, all stockpiles would be either covered or
288
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
vegetated,as necessary,and a six-foot fence with filter fabric would be installed around the northern and
western portions of the Construction Excavation Area (see Section 3.8.2 of this DEIS.
As noted earlier in this DEIS, the proposed action would require coverage under the SPDES General
Permit for Stormwater Discharges from Construction Activity (GP-0-20-001), which includes the
preparation of a SWPPP for submission to both the Town and the NYSDEC prior to any construction
activity. As discussed in Section 2.2.2 of this DEIS,the SWPPP would be designed in accordance with the
NYSStormwater Management Design Manual,(2015)and would meet the standards and specifications of
the New York Standards and Specifications for Erosion and Sediment Control (Blue Book)(2016).
Furthermore, the proposed stormwater management system and sediment and erosion controls to be
implemented would be consistent with Chapter 236,Stormwater Management and Erosion and Sediment
Control of the Town Code.
Based on the above,no significant adverse impacts associated with land disturbance during construction
would be expected.
Proposed Excavation and Material Removal
As shown on the Excavation Phasing Plan in Appendix C,the proposed action would require the removal
of approximately 135,000 CY of material within the identified Construction Excavation Area
(approximately 4.59 acres)in the southeast portion of the subject property.As indicated in Section 2.1.2,
the calculations are based on the delineated area of the excavation, soil classifications from the field
investigation and professional judgement on stratigraphy between the boring locations. The excavation
and removal of the materials would be removed in two phases.Phase 1 would encompass approximately
3.79 acres of the excavation area and the removal of 123,000±CY of material is proposed.The area to be
excavated would be graded down to 9 feet AMSL.Once the area is excavated,the northern portion of the
Evergreen concrete retaining wall would be constructed to stabilize the slope.Phase 2 would commence
immediately after Phase 1 is completed and would encompass an approximately 0.80-acre area within
the Construction Excavation Area and the removal of 12,000± CY of material is proposed. Similar to
Phase 1,the area would be graded down to 9 feet AMSL and trucks would access the area via the main
entrance to the subject property from West Mill Road.Similar to Phase 1,a security booth would be sited
at the main entrance to SYC to house a site manager responsible for directing trucks to the Construction
Excavation Area,inspecting exiting vehicles,and enforcing safety protocols.Once excavation is complete
for Phase 2, the western portion of the Evergreen concrete retaining wall would be constructed. As
discussed above,trucks entering and exiting the Construction Excavation Area would be directed via the
guard in the guard booth at the entrance of the haul road at West Mill Road.All material to be removed
during Phase 1 would exit the Construction Excavation Area via the temporary haul road.Trucks exiting
would be inspected to ensure no soil or loose debris is introduced onto local roadways.
As outlined in Appendix F,the following construction equipment is proposed for Phases 1 and 2:
a) 40 trailers with operator
b) 2 loaders with operator
c) 2 excavators with operator
d) 1 fuel truck/water truck with operator
e) 2 dozers with operator
289
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
f) Additional personnel: 1 project manager, 1 site safety supervisor, 2 flagmen, and 4
laborers
Equipment associated with items b, c, and e would remain on-site throughout both Phases 1
and 2.
As identified in Appendix H and discussed in Section 2.1.2 of this DEIS,vibrations from the operation of
machinery are not anticipated as pile driving activities are not proposed and the medium to dense soils
would limit vibration effects.Additionally,the recommended soil cut on 1:5:1(Horizontal:Vertical)slope
was based on OSHA guidelines for excavation safety in Type C (granular,i.e.,sandy) soils.The required
cut would be 340 and would be taken from the base of the proposed retaining wall and would not extend
horizontally onto the property of the nearest resident,5106 Mill Road. Therefore,slope stability would
not be a concern to nearby properties.The proposed Evergreen concrete retaining wall would improve
slope stability as it would correct existing slope failure due to the placement of dredge material within
the Construction Excavation Area.
The potential vibration impacts associated with excavation and material removal are addressed later in
this section.
Proposed Evergreen Macro Gravity Retaining Wall System
An Engineering Design Report and Documentation has been prepared by Jeffrey T.Butler,P.E.,P.C.,and
is included in Appendix H of this DEIS.As documented in this report,the proposed Evergreen concrete
retaining wall has been used for slope stabilization world-wide for over 35 years.Photographs of similar
walls on Long Island and throughout the world have been included in Appendix H to document the use
of the wall and the visual appearance of this wall type.As indicated in the photographs,the Evergreen
concrete retaining walls are visually more appealing than a traditional retaining wall due to the
vegetation and eventual full growth that screens the structure.
The proposed Evergreen concrete retaining wall consists of precast concrete modular units that are
fabricated off-site(Bellport,New York)and are shipped for assembly on-site.The modular units are then
placed in pre-determined locations to lock together and create a wall with a safety factor of greater than
2.0, with 1.5 being the code minimum. Once in place and backfilled, seeding and use by bird species
promote growth in the trays that are built into the wall to create a"green"wall over a period of two-to-
three years. The aesthetic and environmental characteristics of this wall, combined with the design
philosophy of this proprietary wall,make the Evergreen concrete retaining wall system an ideal solution
for projects where slope stabilization is equally as important as maintaining a natural viewshed.
The installation of the proposed wall comes with a mandatory, strict quality control with continuous
third-party inspections for both the off-site fabrication and on-site installations as well as Evergreen
standard practice for achieving the design intent for safety factor,aesthetic beauty, and job site safety.
Specifically,as part of the process,a shop drawing for each modular unit is generated and approved by
the Engineer of Record. There would then be a continuous third-party process in place which
accompanies the shop drawings from off-site fabrications to on-site assembling, including rebar
inspection and concrete testing. In order for each modular unit to be shipped for on-site assembly,the
concrete must pass a mandatory 28-day test.
290
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As discussed in Section 2.1.2 of this DEIS,the 1.5:1 slope is a 34'angle for granular soils composed of
sand with gravel and medium dense to dense compaction are favorable for stable open cuts. A cut on
a 34'angle taken from the base of the proposed Evergreen concrete retaining wall would not extend
horizontally onto the property of the nearest resident,5106 Mill Road. Therefore,slope stability is not
a concern to nearby properties.The Engineering Design Report and Documentation(see Appendix H)
reviewed the soil borings conducted by PWGC to assure design compatibility with the native soils
properties and groundwater elevation.It was concluded the design principles utilized for this gravity
wall system are consistent with the requirements for the proposed Evergreen concrete retaining wall.
The Engineering Design Report and Documentation for the proposed Evergreen concrete retaining
wall considers soil stability and erosive forces including precipitation such that there would be no
stability issues.
As outlined in Appendix F,the following construction equipment is proposed for the construction of
the Evergreen concrete retaining wall:
a) 1 excavator with operator
b) 1 loader with operator
c) 1 skid steer with operator
d) 1 mini excavator with operator
e) Additional personnel:4 laborers
Equipment associated with items a through d would remain on-site throughout the construction
period for the Evergreen concrete retaining wall.
The Engineering Design Report and Documentation in Appendix H also includes Evergreen Retaining
Wall Typical Section and Notes, Wall Specifications, Minimum Design Requirements, Fabrication
Requirements,Excavation Requirements,Site Preparation Requirements,Minimum Requirements for
Transportation and Unloading,and Minimum Wall Erection Requirements.
Proposed Building and Infrastructure Phase
Buildings and Infrastructure
Prior to the construction of the proposed buildings, additional geotechnical investigation would be
completed within the southern footprint of Buildings 9.The soil borings completed in this area during
the initial geotechnical investigation indicated loose soil deposits that may require improvement for
foundation bearing.
Following the additional geotechnical investigation,the construction of the boat storage buildings and
drainage system would commence. The security booth constructed as part of Phase 2 would be used
for Phase 3. The site manager would be responsible for directing trucks to the construction area,
inspecting exiting vehicles,and enforcing safety protocols.
291
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As outlined in Appendix F,the following construction equipment is proposed for Phase 3,inclusive of
the construction of the Evergreen concrete retaining wall (discussed above) and construction of the
drainage system:
a) 2 loaders with operator
b) 1 excavator with operator
c) 1 fuel truck with operator
d) 2 skid steers with operator
e) 1 mini with operator
f) 1 dozer with operator
g) 1 telescopic forklift
h) Scissor and telescopic lifts
i) Additional personnel: 1 project manager,20-60 laborers contingent upon progression
of construction
Equipment associated with items a through h would remain on-site throughout the
construction period for the Evergreen concrete retaining wall.
Utility Infrastructure
The proposed extension of the water main would be in coordination with the SCWA. The Applicant
would pay for the water main extension; however, the actual construction would be undertaken by
SCWA.The water main extension would be sited within the public right-of-way similar to other public
infrastructure.
The Final Scope requested information related to the extension of natural gas service to the subject
property.However,the proposed heating source for the proposed storage buildings is not natural gas
and therefore, an extension would not be required. The proposed heating source, as discussed in
Section 3.1.2 of this DEIS,would be above ground LPG tanks in concrete vaults.The existing buildings
at SYC would continue to be heated using recycled engine waste oil.
Construction-Related Traffic Impacts
As part of the TIS (see Appendix 0), the potential construction-related impacts associated with site
activity and traffic were evaluated. The construction traffic would include trucks for performing
operations on the site as well as the delivery and removal of materials as well as worker vehicles and
tradesman vans.
The projected truck trips would be 40 entering trucks and 40 exiting trucks per day during the four-
month excavation period for Phase 1 and 40 entering trucks and 40 exiting trucks per day during the
one-month excavation period for Phase 2. Entering trucks would be empty and each exiting truck
would carry approximately 30 CY of excavated material. Trucks associated with site clearing for Phase
1 would access the subject property via the haul road while trucks associated with site clearing for
Phase 2 would access the subject property via the existing site access from West Mill Road and utilize
internal access routes.
292
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
For the construction of the retaining wall, a total of 60 truck trips will be necessary during the six-
month construction period. For the construction of the two boat storage buildings,another 12 truck
trips (six[6] per building)will be necessary.Trucks associated with the construction of the retaining
wall and boat storage buildings would access the subject property via West Mill Road and existing
internal access routes.
All trucks associated with the construction of the proposed action would be limited to traveling at 30
mph on West Mill Road and all neighboring roads.The posted speed limit on West Mill Road is 35 mph.
All construction activities would be overseen by a Construction Manager and dictated by a
Construction Management Plan developed in coordination with the Town of Southold. The
Construction Manager will facilitate coordination among the appropriate governmental
agencies/departments and interested parties to minimize potential construction impacts in the
surrounding area.It is also anticipated that the Town of Southold will provide independent oversight
on behalf of the public.While the Applicant would strive to ensure that impacts as a result of demolition
and construction are minimized,the public can express any issues during construction to the Town,
who would then notify the Applicant;and,if necessary,the Town could oversee the implementation of
any corrective action.
As indicated in Section 3.3.2 of this DEIS and the TIS, prior to the commencement of project
construction,it is recommended that Cox Neck Road/West Mill Road be restriped with shoulder edge
lines defining the edge of 10-foot travel lanes. The edge lines will better define the road adding safety.
The ten-foot travel lanes defined by the edge lines will provide the motorist with the appearance of
narrower roadway while providing and area for pedestrians. High grass and any brush should be
mowed and remove providing a walkable surface where feasible. It is suggested that, during the
construction period, the speed limit be reduced along Cox Neck Road/West Mill Road. The current
speed limit is 35 miles per hour and could be reduced to 30 or even 25 miles per hour for the duration
of the construction activity. The speed limit change would require approval of the NYSDOT or the
Southold Town Board depending on the Town's ability to set speed limits.
Overall,no significant adverse traffic impacts during construction are anticipated.
Construction-Related Noise Impacts
It is recognized that the Town of Southold regulates construction-related noise (Chapter 180 of the
Town Code) by limiting the times of construction activities to 7:00 am to 7:00 pm, on weekdays and
Saturday. The Applicant is also aware of the residential land uses that are located adjacent to the
subject site. As such, in accordance with Town Code and indicated above, all construction activities
would be limited to Monday to Saturday from 7:00 am to 7:00 pm. The excavation phases with truck
activity would be limited to Monday to Friday from 7:00 am to 5:00 pm as mitigation offered by the
Applicant. On Saturday's and after 5:00 pm on weekdays, on-site activity would be vehicle and
machinery maintenance and planning for the following workday or Monday for a 7:00 am start. No
work would be performed on Federal or State holidays,or on Sundays.Also,all trucks would be Tier 4
certified by U.S.EPA standards and all gasoline or diesel-powered machinery would be equipped with
adequate mufflers. Additionally,any vehicle that requires the use of a back-up alarm would use a white
noise back-up alarm rather a single tone beep, and all trucks and drivers would be instructed to
disengage all Jake Brake mechanisms once turning on to Cox Neck Road from County Route 48.
293
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Several measures to reduce noise impacts on the surrounding community with regards to truck noise
would be implemented. These measures include ensuring the mufflers are adequate on gasoline or
diesel-powered machinery, the Jake Brake would be turned off on diesel engine trucks,and engines
would be Tier 4 certified by U.S.EPA standards.
Overall, although the proposed action would result in an increase in ambient noise levels during
construction, they would be temporary in duration and all activities would comply with the Town
Noise Code.
Construction-Related Air Quality Impacts
Construction activities in connection with the proposed development have the potential for temporary
air quality impacts such as generating fugitive dust emissions from soil particles that become airborne
when disturbed by heavy equipment operation or through wind erosion of exposed soil after
groundcover (e.g., landscaping/planted areas, pavement) is removed. Excavation, grading, and
loading/unloading materials in trucks also contributes to fugitive dust emissions.
As part of the proposed action, several measures would be implemented to minimize fugitive dust
during construction, particularly during dry periods, the following mitigation measures will be
employed during construction,as necessary:
• Minimizing the exposed area of erodible earth.
• Applying wet suppression to material piles and unpaved areas when there is visible dust.
• Use of covered haul trucks to move construction material.
• Use of plastic sheet coverings for material piles.
• A six-foot fence with filter fabric would be installed around the northern and western portions
of the Construction Excavation Area.
With the implementation of the above measures,there would be no significant adverse impacts created
by fugitive dust generation and the resultant air quality impacts would be avoided.
To reduce emissions during construction,heavy-duty vehicles will not remain idling for more than five
minutes at a time and the Applicant is committed to using all Tier 4 certified by U.S. EPA standards
trucks and equipment to reduce emissions of PM and NO..As excerpted from the Air Quality Evaluation
(see Appendix S of this DEIS),the benefit of a Tier 4 engine is that it,"significantly reduce emissions of
particulate matter(PM)and oxides of nitrogen (NOx) to near zero levels.Relative to previous emissions
standards, Tier 4 compliant engines reduce emissions by over 95 percent for most agricultural and
construction equipment and just over 86 percent for much larger applications like locomotives and
marine vessels."
Construction-Related Vibration Impacts
To address potential construction-related vibration impacts impact to nearby residents and truck
traffic on local roads,a Vibration Report was prepared by SoundSense (see Appendix R of this DEIS).
In August 2022, SoundSense documented the existing vibration conditions at various locations near
294
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
the project site and vibration data from a representative truck expected to be used during construction.
The measurements collected provide a baseline for existing conditions and have been used in the
predictions completed for the Project. Predicted vibration levels were used in conjunction with the
methodology and data from the FTA Guidelines and the New Hampshire Guidelines.A more detailed
description of the methodologies and analyses are in Section 3.6.15 of the Vibration Report.
Although the soil in and around the project area significantly attenuates vibration over short periods
of distances, mathematical equations in the Vibration Report were used to evaluate the minimum
distance from trucks which would not cause damage to historic and residential structures as well as
impact to nearby residences (as defined in Table 2 of the Vibration Report). The minimum distances
can be found below in the table below,which was excerpted from Table 6 of the Vibration Report.
Table 52 -Minimum Distances to Meet Vibration Criteria
Minimum Minimum Minimum
Description Distance to Cause Distance to Cause Distance to Meet
No Damage to No Damage to Recommended
Historic Residential Indoor Vibration
Structures Structures(ft) Levels(ft)
ft
Loaded Truck from FTA Guidelines 17 11 79
Measured Truck at Location 4 2 2 29
Based on the data collected and calculations provided,it is anticipated that the minimum distance to
meet the criteria would be 17 feet based on the data collected and 79 feet based on a worst-case
scenario using the federally standardized FTA Guidelines methodology and Equation 3. Although
several residences have structures that are closer than 79 feet from the roadway,no residences along
West Mill Road or Cox Neck Road have distances closer than 29 feet from the roadway.Although this
presents a potential quality of life impact for homes with distances of less than 125 feet from the road,
it should be noted that the ambient PPV data collected from typical vehicle traffic on West Mill Road
elicited similar vibration readings to the truck passbys.Therefore,while there is a potential quality of
life impact for truck traffic impact,that impact is no greater than the existing typical vehicle passbys
which are already using West Mill Road and would therefore be no different than any vibration
transmitted currently.
Once vehicles turn off West Mill Road and Cox Neck Road,and travel along Sound Avenue, Northville
Turnpike,and Route 58,there is also already existing significant truck traffic.A letter was provided to
the applicant from Benimax, Inc. a local trucking company noting that Benimax transports up to 500
tons of materials including sand,stone,asphalt,and concrete to the North Fork daily(see Appendix 0).
It is noted that the 500 tons is equivalent to 14 tractor trailer loads of materials. Benimax notes that
they use State Route 25,County Road 48,Sound Avenue,Northville Turnpike,and Country Road 58 on
a regular basis for their trucking routes. These are metrics for only one of the trucking providers
serving the area.Additional truck traffic from other trucking providers would send additional traffic
into the area daily.Therefore,truck traffic along these roadways and associated vibration from loaded
trucks is already a part of the existing conditions of these areas.
295
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
For any potential damage to historic structures, worst-case scenario calculations conclude that a
minimum distance of 17 feet would be required from the roadway surface. However, based on the
vibration data collected near the project site,the distance would be 2 feet. For damage to residential
structures,the worst-case scenario for damage would be 11 feet and based on the data collected near
the Project Site,would be 2 feet. A list of historic structures along the truck route and figures noting
the location of each of the historic structures can be found in Table 7 and Figures 3-11,respectively,in
the Vibration Report.
As indicated in the Vibration Report, analysis of the construction equipment has shown that there is
no predicted impact to any nearby neighbors. Additionally, using the data collected near the project
site,there is no predicted impact to any nearby historic structures from truck traffic. However,using
the worst-case scenario and the reference data and calculation methodology presented in the FTA
guidelines(detailed further in Section 3.6.15 of the Vibration Report),there is a potential impact from
truck traffic to the Water Tower and Building located at 3380 West Mill Road.These reference values,
equations,and methodologies were developed to be used throughout the United States and do not take
Long Island's unique soil structure into account (i.e., Long Island's sandy soil structure efficiently
reduces vibration over short distances).While there is no impact anticipated using the data collected
on site,the risk of potential vibration in the worst-case scenario is identified in this report.To ensure
that vibration is responsibly managed,a vibration monitoring plan during construction at the project
site to protect nearby historic structures of concern and ensure that ground-borne vibrations are not
a disturbance to nearby neighbors.
As indicated in Section 3.6.17 of the Vibration Report, vibration monitoring terminals would be
installed at four locations and monitored through all phases of construction. One of the four locations
would be installed as close as possible to the foundation of the Water Tower and Building,an historic
structure located near the project site (see Section 3.11 of this DEIS) and the locations of the three
remaining terminals have not been determined. However,the terminals would be installed as close to
any impacted structures while also maintaining full access to the vibration monitoring terminal
(possible locations are included in Figure 13 of the Vibration Report).
If vibration levels exceed permissible levels (based on the RMS Velocity and Peak Particle Velocity
[PPV]54),the following steps will be taken for Vibration Monitoring at Locations 1-3:
• The acoustic consultant and construction management team should be notified if an exceedance
is measured.
• The time and location of construction activities when the exceedance is measured are to be
provided to the acoustic consultant.
• If the exceedance is an RMS exceedance,the RMS velocity should be verified in the Syscom ROCK'S
cloud portal.
• Should the cause of the exceedance be linked to the construction activities,construction should be
halted immediately until appropriate measures, such as operating fewer pieces of equipment or
moving construction activities away from the construction area boundary,can be completed.
54 As indicated in the Vibration Report in Appendix R, RMS Velocity is used to describe a smoothed
vibration signal and is used to evaluate human response to vibration levels,and PPV is the maximum
peak of the vibration signal and is the metric typically used to evaluate stresses related to building
damage.
296
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• The only exception to halting construction would be if it would be a life safety issue for the
construction workers, or if it would result in an unsafe structure at the time of halting the
construction.In each of these cases.Construction should only be continued until such time that all
workers would be safe and that all structures are stable and would not be in danger of collapse.
At location 4(Water Tower and Building),disturbance to inhabitants is not a concern.The criteria for
Location 4 will be for vibration damage only and would be the criteria for vibration damage to historic
structures,0.12 in/s.There are specific procedures for the protection of the Water Tower and Building
(further detailed in Section 3.11 of this DEIS.
Disposal Location and Alternative Locations
The Amended Final Scope requires this DEIS "to discuss alternative plans for the disposal of any
excavated material that cannot be sold, and provide an evaluation of any disposal sites, other than
commercially operated sites specifically designed to receive fill." The Amended Final Scope also
requires"the identification of the off-site disposal location."
As indicated in Section 2.1.2 of this DEIS, material from the subject property would likely be
transported to a registered or permitted NYSDEC Part 360 facility,likely located within 15 miles west
of the project location, for processing and re-use. Upon excavation and loading on to trucks, the
material in its raw form would be transported to a facility for stockpiling and processing, and
eventually sold as a finished product to the ultimate end user. Such uses could be beach replenishment,
aggregate for roadway construction,pre-cast concrete products,etc. Material may also be transported
directly to a local site for re-use. Given that this project is still in the environmental review process,
and the ultimate re-use facility or location is driven by market conditions and the local need,it is not
possible to identify the specific re-use location or alternative locations. However,the transportation
costs of these types of aggregates often drive their use,and it often becomes financially restrictive to
transport these types of materials greater than 50 miles.
Mining
The Amended Final Scope requests official documentation that no action on-site constitutes mining. It
is important to note that under the NYSDEC Mined-Land Reclamation Law,exempt activities include
"Excavation or grading operations which are conducted solely in aid of on-site construction or farming,
such as excavation for a basement or farm drainage improvements. Operations fall in this exempt
category when the operator presents objective evidence to the department which shows that
construction or farming will occur at the site concurrently with excavation and grading or immediately
after these operations are finished." Furthermore, pursuant to Article 23, Title 27 (New York State
Mined Land Reclamation Law), Section 23-2705, "'Mining shall not include the excavation, removal
and disposition of minerals from construction projects, exclusive of the creation of water bodies, or
excavations in aid of agricultural activities." It is further noted that Mr. Robert W.Yager, Mined Land
Reclamation Specialist,II of the NYSDEC has visited the subject property and has advised that a mining
permit was not required for future work as long as the work was being completed in accordance with
a Site Plan approved by the Town. Correspondence with Mr.Yager dated April 19,2021 is included in
Appendix L
297
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.10.4 Proposed Mitigation
During site preparation,excavation and construction,the following mitigation measures will be implemented
to effectively minimize or eliminate any potential adverse impacts:
• Prior to the commencement of site clearing,all existing trees to be retained will be clearly marked with
silt fencing and/or tagging to prevent removal during the site clearing phase.
• Prior to site preparation,field inspections will occur to identify the presence of the eastern box turtle
and relocation of any observed turtles to on-site areas that would not be disturbed.
• Erosion and sedimentation controls will be undertaken prior to and during construction and will
include, at minimum, stockpile protection, inlet sediment control devices for storm structure
protection,silt fencing,minimizing the extent and duration of exposed areas,and the construction and
maintenance of a stabilized construction entrance to prevent soil and loose debris from being tracked
onto local roads. All erosion and sediment control measures will be routinely inspected and
maintained such that no sediment would be transported off-site.
• All trucks associated with the construction of the proposed action will be limited to traveling at 30
mph on Cox Neck Road/West Mill Road and all neighboring roads.The posted speed limit is 35 mph.
• The Applicant is committed to correcting any damage that is done by construction activities. A survey
of the pavement condition will be done prior to the commencement of construction and the roadway
will be resurveyed following the completion of the project. The Applicant will commit to quickly
repairing any potholes that appear in the roadway during the construction activity to minimize the
potential for vibrations that could affect existing structures. In coordination with the Town of Southold
Highway Department,the before and after surveys will be reviewed, and if damage did occur due to
the construction,the appropriate measures will be taken to correct it.Additionally, at the request of
the Town, SYC would be willing to sign a corporate guarantee for the repair of any road damages to
pre-development condition.
• Prior to the commencement of project construction,it is recommended that Cox Neck Road/West Mill
Road be restriped with shoulder edge lines defining the edge of 10-foot travel lanes. The edge lines
will better define the road adding safety. The ten-foot travel lanes defined by the edge lines will
provide the motorist with the appearance of narrower roadway while providing and area for
pedestrians. High grass and any brush should be mowed and remove providing a walkable surface
where feasible.
• Flaggers will be uses for maintenance and protection of traffic at locations where severe curves in the
truck route or at intersections where turns are being made by project trucks that may require crossing
of the yellow double barrier lines.
• In accordance with Chapter 180 of the Town Code,all construction activities will be limited to Monday
to Saturday from 7:00 am to 7:00 pm. The excavation phases with truck activity will be limited to
Monday to Friday from 7:00 am to 5:00 pm. On Saturday's and after 5:00 pm on weekdays, on-site
298
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
activity would be vehicle and machinery maintenance and planning for the following workday or
Monday for a 7:00 am start.
• The grading program will result in an excess cut of 134,921 CY of material. All excess soils will be
transported to a registered or permitted facility in accordance with NYSDEC Part 360 or local site for
re-use. As the ultimate location is driven by market conditions and the local need,it is not possible to
identify the specific re-use location or alternative locations at this time.
• Any vehicle that requires the use of a back-up alarm will use a white noise back-up alarm instead of a
single tone beep.
• All trucks and drivers will be instructed to disengage all Jake Brake mechanisms once turning on to
Cox Neck Road from County Route 48.
• All trucks will be required to be Tier 4 certified by U.S.EPA standards.
• The construction manager will inspect all construction vehicles and equipment to ensure proper
maintenance of their emission control equipment and also control the idling of construction vehicles.
Fugitive dust emissions will be mitigated with the use of water during dry periods.
• A sweeper will be employed daily during the excavation phase to remove loose sediment from West
Mill Road.
• All stockpiles will be covered.
• All equipment storage/staging will be located within the area of disturbance only on-site,as well as all
contractor and worker parking,to minimize off-site traffic impacts.
• The proposed haul road has been relocated approximately 29 feet to the south to increase the
separation distance to the nearest residence such that the proposed haul road will be approximately
259 feet from the haul road to the pool at the adjacent residence.
• The proposed haul road entrance on West Mill Road has been relocated approximately 60 feet to the
south to increase the separation distance to the nearest residential property. The proposed separation
distance is 145 feet.
• Approximately 90 percent of the material to be removed during the excavation phase will be removed
via the haul road, and the remaining 10 percent will be removed from the existing site driveway on
West Mill Road.
• The proposed stockpile and construction staging areas will be setback a minimum distance of 25
feet from the adjacent residential property.
• A security booth and gate will be positioned at the entry/exit to the haul road for Phase 1 excavation
and on the SYC property for Phase 2 excavation and construction,for the purpose of vehicle inspection
and providing driver instruction.
299
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Prominent markers such as orange cones will be placed at the south end of the stabilized RCA shoulder
during the construction period to ensure that the construction trucks will maintain distance from the
platform water tower and accessory building at 3380 West Mill Road to minimize vibration impacts to
these structures.
• In accordance with 6 NYCRR Subpart 217-3,heavy-duty vehicles shall not remain idling for more than
five minutes at a time.
• To minimize the generation of fugitive dust during construction, particularly during dry periods,the
following mitigation measures will be employed:
o Minimizing the exposed area of erodible earth.
o Applying wet suppression to material piles and unpaved areas when there is visible
dust.
o Use of covered haul trucks to move construction material.
o Use of plastic sheet coverings for material piles.
o A six-foot fence with filter fabric would be installed around the northern and western
portions of the Construction Excavation Area.
• Asphalt binder will be installed on the shoulder of West Mill Road to prevent damage from tag axles.
• Signage for construction vehicles entering the haul road will be installed on West Mill Road for proper
wayfinding.
• There will be no weekend construction work between September 15 and October 31 for the Fall
Festival season.
• Vibration monitoring terminals will be installed at four locations and monitored through all phases of
construction. If vibration levels exceed permissible levels (based on the Peak Particle Velocity[PPV]
defined in the Vibration Report),the following steps will be taken for Vibration Monitoring at Locations
1-3:
➢ The acoustic consultant and construction management team will be notified if an
exceedance is measured.
➢ The time and location of construction activities when the exceedance is measured will be
provided to the acoustic consultant.
➢ If the exceedance is an RMS exceedance, the RMS velocity will be verified in the Syscom
ROCK'S cloud portal.
➢ Should the cause of the exceedance be linked to the construction activities,construction will
be halted immediately until appropriate measures, such as operating fewer pieces of
equipment or moving construction activities away from the construction area boundary,
can be completed.
➢ The only exception to halting construction would be if it would be a life safety issue for the
construction workers, or if it would result in an unsafe structure at the time of halting the
construction.In each of these cases.Construction should only be continued until such time
that all workers would be safe and that all structures are stable and would not be in danger
of collapse.
300
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• As indicated in Section 3.11 of this DEIS, following specific procedures would be followed for the
protection of the Water Tower and Building:
➢ Arrival and departure times for all trucks to be loaded and leaving with building materials
will be logged by the construction management team. All scheduled traffic must occur
within defined work hours.
➢ Should an alert be triggered,the time of the alert will be correlated with the arrival times of
all trucks coming to the project site.
➢ If it is confirmed that exceedance is due to operation of a truck associated with the
construction,truck operators will be required to reduce speeds near the Water Tower and
Building so that vibration is reduced.All drivers are to be notified of any speed restrictions.
➢ Should two alerts confirmed to be due to truck vibration occur on the same day,truck trips
will be halted until additional data can be collected and mitigation can be implemented.
301
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
3.11 Archaeological and Cultural Resources
3.11.1 Existing Conditions
Cultural resources are defined as archaeological sites (including those dating to both precontact and
historic eras),buildings,structures,objects(such as monuments),districts and multiple resource areas
(MRAs),cultural landscapes,and traditional cultural properties.
A cultural resource assessment considers both direct and indirect effects on archaeological site and
buildings/structures. Direct impact elements are typically defined as those that will result in the
removal or displacement of existing soil matrix to various depths or the removal or change in
footprints for existing buildings and structures. Indirect effects are those impacts that affect ambient
conditions including air quality, noise, odor, viewshed or shadows. The Amended Final Scope (see
Appendix B of this DEIS)identified the potential archaeological sensitivity of direct impact areas within
the Project Area requiring evaluation as well as the potential impacts on three properties inventoried
by the NY State Historic Preservation Office(SHPO)located north and west of SYC on W.Mill Road(see
Appendix T). Furthermore, the Amended Final Scope identified four potential indirect effects,
including changes in air quality,noise,vibration,and viewshed(setting).
The evaluation of potential cultural resources (direct and indirect effects) was undertaken by the
project archaeologist, Carol S.Weed, MA (RPA) and in consultation with OPRHP. A summary of the
existing conditions presented bythe project archaeologist are included below and all cultural resource
assessments are included in Appendix T. The appendix contains the initial Project Notification,Phase
IA Archaeology (2021a), Reconnaissance-level Historic Resources Survey, Phase IB Archaeological
Assessment documents (2021b), and SHPO correspondence for the proposed project. The data from
these various submissions are abstracted below under Phase IA, Phase IB Archaeology, and
Reconnaissance-level Historic Resources Survey.
Phase I Cultural Resource Assessments
On June 20, 2021, a descriptive detail of the proposed action was submitted to OPRHP. In response,
OPRHP assigned the proposed action Project Number 21PR04396. The Phase IA archaeological
assessment and a reconnaissance-level historic resources review subsequently were conducted. Both
included background and literature research and field walkovers of the Project Area. The
reconnaissance-level survey was conducted of the properties sharing a common boundary with SYC
and properties within the viewshed of the Project Area. The results of the archaeological and
building/structure reviews were summarized in two reports (see Appendix T). Herein, these two
reports are referred to C.Weed(2021a) and C.Weed(2021b). Following receipt of SHPO comments
on the Phase IA archaeology report, a Phase IB archaeological survey was conducted of the
Construction Excavation Area and temporary haul road and is included in Appendix T of this DEIS. A
summary of the Phase IA and IB is provided below.
Phase IA Archaeology
The background and literature review of OPRHP's Cultural Resource Information System(CRIS)within
a two-mile search area identified four archaeological sites as having been reported in the area,
302
Draft Environmental Impact Statement Rev.November 2022
StronB'sYucht(enmr-prvposod Boat Storage Buildings
5780 West Mill Road,Muttd"dk,Town vfS,u8mld,Suffolk County,NY
including: the Youngs Avenue Site, the James Corwin House Site, the Macd Prehistoric Site. and the
Deep Hole 2(Weed 2021a). The lattersite isthe onlyone ofthe four that yielded temporally diagnostic
artifacts. The two artifacts were an Indigenous Nation Late Woodland Levanna-like projectile point
fragment and a Colonial-era Buco'Aanedcau kaolin pipe stem.
The presence of Indigenous Nation occupations in Suffolk County was documented by several
researchers throughout the 2Omcentury. 0f particular interest was a noticeable preference for hilltop
locations during the accbaoo|ogica|ly-defined 7cauuihooa| Archaic and Early Woodland periods. A
hilltop is located to the north of the Construction Excavation Area on the 60 feet AMSL contour and the
50 feet and 40 feet AMSL contours to the south of the hilltop have level and relatively broad (i.e.,16±
Cuadteccacey.
The presence of such terraces was considered during the walkovers of the direct impact areas in the
Project Area. No archaeological numtecia|y were observed except those that were obviously in fill
contexts. These occurred in uplands along gcuvcicd ATV paths and in the eastern section of the
Construction Excavation Area where spoil has been deposited (see Section 2.1.1 of this DEIS). ltenny
observed included brick and concrete fragments,a tire,and miscellaneous glass fragments.
Though the walkovers did not result in the identification of Indigenous Nation artifacts on the ground
surface, the relatively broad terraces on the 50 feet and 40 feetAK83L contours in the Construction
Excavation Area and at the juncture of the valley slope and upland were evaluated as archaeologically
sensitive. The primary reasons for this were proximity to o valley slope svvu|o that may have held
seasonal potable water and the proximity to the riverine resources in the now-filled inlet and Mattituck
Creek.
Overall,the Phase IA concluded that archaeological resources might be present at the north end of the
Construction Excavation Area and along the temporary haul road as it trends west from the northwest
corner of the Construction Excavation Area. The proposed route o[the temporary haul road has been
disturbed by an existing ATV oval track and other ATV paths. Thus,C.Weed recommended that Phase
IB testing along the proposed temporary haul road extend westward for a distance commiserate with
the presence of intact A and B horizon soils. The Phase IA report was submitted to SHPO on July 4,
2021 and revised figures were submitted ou July 9, 3021. 8y comment letter dated July 3Z, 20Zl,the
0PRRP reviewer, Dr. Timothy Lloyd accepted the Phase IA conclusions and recommendations.
Separately,Dr.Lloyd,on July 29,2021,noted that a Phase IB work plan would not be needed.
Phase 10Archaeology
SHPO concurred with the recommendation that Phase IB archaeological investigations be conducted
in parts of the Construction Excavation Area and along the temporary haul road. In the OPRRPJuly
23 letter,Dr.Lloyd suggested that ofio\d notebook kept by Charles P.Goddard in19ZZ might shed light
on Indigenous Nation utilization within the general area. That notebook was obtained from the
Southold Indian Museum(SlK4)and from 0PRHP. 3|K4 also provided notebooks dated 19l9'193Oand
1933. OPRHP provided access to Goddard's remaining notebooks dated 1921 and 1924 through 1936
as well as two site catalogues on August 6, 3031. Goddard notebooks dated 1919 through 1935
contained information on archaeological objects Goddard and his wife recovered from agricultural
fields north and south o{East Mill Road and in the vicinity of Grand Avenue. No reference was made
to properties on the West Mill Road side of Mattituck Creek on the current SYC property or on abutting
303
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
properties. The Goddard recorded the presence of temporally diagnostic objects dated to the
archaeological eras referred to as Archaic and Woodland. These East Mill Road archaeological loci are
not entered into the OPRHP CRIS system but would be completed before the end of 2021 by Ms.Weed.
Following review of the Goddard data, Ms.Weed submitted an email to Dr. Lloyd on August 20, 2021
specifying Phase IB shovel test pit intervals of 25 feet (7.5 meters) and 33 feet (10 meters). The
interval was reduced from the standard 50-foot (15 meter) interval because data obtained by both
Mark C. Tweedie and Charles Goddard in similar settings on the North Shore indicated that
archaeological artifact scatters in slope terrace settings were tightly clustered and that they might be
missed at the standard 50-foot interval. By email dated August 5,2021,Dr.Lloyd accepted the shorter
intervals.
The Phase IB fieldwork was conducted September 19-22,2021 by an archaeological field crew under
the direction of Dr.Matthew D.Spigelman(ACME Heritage Consultants)and Ms.Weed as co-principal
investigators. In total, 70 shovel test pits (STPs)were excavated in the north half of the Construction
Excavation Area (see Figure 7 in Appendix T) which was considered as possibly archaeologically
sensitive. An additional 16 STPs(see Figure 8 in Appendix T)were dug along the temporary haul road.
Except for a single fragment of clear glass found in STP H9 on the temporary haul road, no
archaeological objects were observed or recovered. Dr. Spigelman and Ms. Weed recommended no
further archaeological investigations in the SYC Project Area. The Phase IB report was submitted to
OPRHP on October 4, 2021. In response, on November 18, 2021, OPRHP requested the geotechnical
engineering borings to document evidence of the deposition of dredge spoils along the southern
portion of the Project Area. The requested documentation was provided, and a request for Phase IB
testing in this area has been requested in correspondence dated December 3, 2021. This additional
work has been performed.
As noted in the Supplemental Phase 1B Assessment dated January 7, 2022 (see Appendix T), the
research and field investigations found that the September STP stratigraphic profiles reflected the
characteristics of the upper solum as documented in both the USDA Soil Conservation Web Soil Survey
data (USDA WSS 2021) and the geotechnical bore profiles (PWGC 2021).Apparent dredge spoil was
also identified in several STPs all of which were within the filled inlet or on that inlet's shoreline.
Although historicera artifacts were recovered,the material is identified as building demolition debris,
which likely originated offsite and was dumped on-site during or before the inlet filling. None of the
historic-era artifacts are associated with Indigenous Nations. No further archaeological work was
recommended as there was no evidence of use by Indian Nations peoples was identified and no intact
historic-era occupation zones were found.
By correspondence dated January 24, 2022 (see Appendix T), OPRHP determined that based on the
supplemental Phase IB archaeological investigation, no archaeological sites were identified, and no
additional archaeological investigation is needed.
Phase I Reconnaissance-Level Historic Resources Survey
The reconnaissance-level buildings and structures survey considered four groups of buildings and
structures: 1) the three inventoried properties identified in the Amended Final Scope; 2) the SYC
buildings and structures;3)properties directly abutting SYC property lines;and 4)properties that had
direct views of project sites.
304
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in the reconnaissance-level historic resources report, the three inventoried properties
hold SHPO Unique Site Numbers(USNs)and their eligibility for the State/National Registers of Historic
Places(S/NRHP)is presently listed as Undetermined. The properties are:
1. Robinson-D'Aires House (USN 10310.000347)at 4255 West Mill Road,
2. Old Mill Restaurant(USN 10310.000348)at 5775 West Mill Road,and
3. Old Water Tower(USN 10310.000349) on Suffolk County Tax Parcel 1000-106-6-4.1 (West
Mill Road)
The three Undetermined properties were evaluated relative to indirect effects only. None of the
properties would be taken by the proposed action and none are on parcels that would be directly
impacted by the proposed project. The three properties were detailed in C.Weed 2021b,summarized
on Table 1 in that report,and photographs of them are presented in Appendix F of Appendix T of this
DEIS.
The Robinson-D'Aires House (USN 10310.000347), located at 4255 West Mill Road, is immediately
west of the Naugles Road and West Mill Road intersection but above the elevation of the road
intersection(Photographs F1-F10). Ms.Weed concluded that the Robinson-D'Aires House,4255 West
Mill Road, is subject to indirect effects resulting from the construction of the main water line and
construction truck traffic during Phase 2 of the construction project.
The Old Mill Restaurant was originally a tide-powered grist mill that began operation in 1821(C.Weed
2021b,Figure 2,Photographs 1711-1714). In 1906,Craven noted that the"mill is now used as a place of
public entertainment." From the early 1900s until 2017 it continued to function "as a place of
entertainment"and as a restaurant. Ms.Weed concluded that the Old Mill on Mattituck Creek retains
no functional mill elements. The footprint of the current structure reflects its use as an eatery with
options for both indoor and outdoor dining rather than its function as a tide mill.
The Old Water Tower(USN 10310.000349)no longer functions as such. It reportedly was re-done to
serve as a rental residence and according to Jeff Strong (Personal communication 4/28/21) the
interior accoutrements have been removed (C. Weed 2021b, Photographs 1715-1716). Ms. Weed
concluded that the Old Water Tower could be indirectly affected by the construction of the main water
line, the associated hydrant which would be positioned about 40 feet (12 m.) northwest of the
building's northeast corner,and Phase 2 construction traffic.
The seven SYC buildings and the associated structures (two dry docks and 45 boat slips)were photo
documented(C.Weed 2021b,Appendices B and C)and their current function,approximate built-year,
and other detail are presented in C.Weed(2021b;Table 4). The SYC buildings and structures,except
for the boat slips,were all emplaced during the Mattituck Marina era which lasted from 1961 to 2016
when the Applicant acquired the property (C. Weed 2021b:14). The buildings include a residence
(Building 1), an office (Building 2), a tri-unit maintenance/storage building (Building 3), a small
storage shed (Building 5),three storage/maintenance buildings (Buildings 6 through 8). Except for
one of the units comprising Building 3, all of the SYC buildings and structures are vernacular forms
typical of their functional class. The exception was originally a seaplane hangar.
305
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Ten parcels share property boundaries with the subject property (C. Weed 2019b, Table 1 and
Appendix D). Of the ten parcels,one is the Mill Road Preserve open space located on the south side of
the subject property at 1900 West Mill Road. Eight parcels have residences and, in some instances,
support buildings. One parcel, located at 3380 West Mill Road, has no residence. Rather,a platform
water tower and accessory building are present on the small lot. The locations of the front facades
and outside activity areas were noted for each of the residences. Data also were obtained for the
residences' topographic setting (elevation AMSL) and, as applicable, the distance from the
Construction Excavation Area and/or the Phase 1 temporary haul road. These observations are
discussed in detail in C.Weed 2021b: 15-18.
Ten other parcels would have direct line-of-sight views of the temporary haul road and its
entrance/exit off of West Mill Road,existing SYC Buildings 7 and 8 and the upland and valley slopes to
the west of those two buildings,or the upland slope and valley slopes east of Building 1 that would be
disturbed by the new secondary water line. The same observations made on the residences on the
abutting parcels were recorded for the so-called viewshed parcels. These results are detailed in C.
Weed 2021b: 19-21.
Overall, C. Weed 2021b concluded there would be no direct or indirect effects on the buildings and
structures identified in the Amended Final Town Scope,that are within SYC,that abut the SYC property,
or that are within the project's viewshed. In correspondence dated July 29, 2021, OPRHP concurred
with Ms.Weed and found that no historic properties would be affected by the proposed project. SHPO
did,however,determine that the platform water tower and accessory building at 3380 West Mill Road
was eligible for listing on the S/NRHP.
In correspondence dated April 8,2022,OPRHP requested the preparation of a Construction Protection
Plan for construction-related vibration impacts on the two eligible structures: Mattituck Creek Tide
Mill/Old Mill Restaurant and the Water Tower and Building(see Appendix T). In response,as part of
the Vibration Report prepared by Sound Sense (see Appendix R and Section 3.10 of this DEIS), a
Construction Protection Plan has been included. Additionally,in response to comments from the Town
of Southold Planning Board during review of the initial DEIS filed in December 2021, all historic
structures along the entire route were identified and evaluated,as noted in Section 3.10 of this DEIS
and included in the Vibration Report.
As indicated in the Vibration Report and discussed in Section 3.10 of this DEIS,there is no predicted
impact to any nearby historic structures from truck traffic. However, using the worst-case scenario
and the reference data and calculation methodology presented in the FTA guidelines(detailed further
in Section 3.6.15 of the Vibration Report),there is a potential impact from truck traffic to the Water
Tower and Building located at 3380 West Mill Road. These reference values, equations, and
methodologies were developed to be used throughout the United States and do not take Long Island's
unique soil structure into account(i.e.,Long Island's sandy soil structure efficiently reduces vibration
over short distances).While there is no impact anticipated using the data collected on site,the risk of
potential vibration in the worst-case scenario is identified in the Vibration Report. To ensure that
vibration is responsibly managed,a vibration monitoring plan during construction at the project site
to protect nearby historic structures of concern and ensure that ground-borne vibrations are not a
disturbance to nearby neighbors.
306
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
As indicated in Section 3.6.17 of the Vibration Report, vibration monitoring terminals would be
installed at four locations and monitored through all phases of construction. One of the four locations
would be installed as close as possible to the foundation of the Water Tower and Building. The criteria
for Location 4 will be for vibration damage only and would be the criteria for vibration damage to
historic structures, 0.12 in/s.The following specific procedures would be followed for the protection
of the Water Tower and Building:
• Arrival and departure times for all trucks to be loaded and leaving with building materials
should be logged by the construction management team. All scheduled traffic must occur
within defined work hours.
• Should an alert be triggered,the time of the alert should be correlated with the arrival times
of all trucks coming to the project site.
• If it is confirmed that exceedance is due to operation of a truck associated with the
construction, truck operators will be required to reduce speeds near the Water Tower and
Building so that vibration is reduced.All drivers are to be notified of any speed restrictions.
• Should two alerts confirmed to be due to truck vibration occur on the same day,truck trips
are to be halted until additional data can be collected and mitigation can be implemented.
3.11.2 Potential Impacts
As noted in the Existing Conditions section,both direct and indirect effects are evaluated for cultural
resources. The proposed project does not include the demolition or alteration to any buildings or
structures and,therefore,would have no direct effect on same. The indirect effects that might affect
buildings and structures are changes in air quality, noise, vibration, and viewshed (setting). These
indirect effects were evaluated for the proposed project as a whole and the results and conclusions
applied to buildings and structures that meet the 50-year or older threshold.
As indicated above, in correspondence dated July 29, 2021, OPRHP indicated that no historic
properties would be affected by the proposed project. SHPO did,however,determine that the platform
water tower and accessory building at 3380 West Mill Road was eligible for listing on the S/NRHP. The
two structures lie about 100 feet (30 meters) south of the south end of the stabilized RCA shoulder.
The only indirect effect that might result in an effect to this resource is vibration. However,trucks and
other heavy-duty vehicles commonly use West Mill Road and have done so for many years.Moreover,
field observation did not indicate any surficial damage due to daily truck movements. Based on
recommendations from C. Weed, prominent markers such as orange cones would be placed at the
south end of the stabilized RCA shoulder during the construction period to ensure that the construction
truck maintain distance from the resource.
Based on the results of the Phase IB survey, the project archaeologist has indicated that no
archaeological sites will be affected by the proposed action. The review of the Goddard notebooks
found no evidence that the Goddards'had conducted archaeological survey of fields abutting West Mill
Road in the general Project Area. As indicated in Section 3.11.2 of this DEIS,the Phase IB report was
submitted to OPRHP and on November 18, 2021, OPRHP requested the geotechnical engineering
borings to document evidence of the deposition of dredge spoils along the southern portion of the
Project Area. The requested documentation was provided, and a request for Phase IB testing in this
area has been requested in correspondence dated December 3, 2021. This additional work was
307
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
performed and no further archaeological work was recommended as there was no evidence of use by
Indian Nations peoples was identified and no intact historic-era occupation zones were found. By
correspondence dated January 24, 2022 (see Appendix T), OPRHP determined that based on the
supplemental Phase IB archaeological investigation, no archaeological sites were identified, and no
additional archaeological investigation is needed.
Regarding the construction-related vibration impacts on the two eligible structures: Mattituck Creek
Tide Mill / Old Mill Restaurant and the Water Tower and Building, there was no potential impact
identified to the Mattituck Creek Tide Mill / Old Mill Restaurant. Under a worst-case scenario, as
discussed in Section 3.11.1 above,there is a potential impact from truck traffic to the Water Tower and
Building; however, vibration monitoring and specific monitoring and action procedures have been
identified for the protection of this structure.
3.11.3 Proposed Mitigation
Based on the historic and archaeological assessments performed,the proposed action would not result in any
significant adverse impacts. Additionally,the proposed action incorporates measures during construction to
avoid sensitive resources,including:
• Prominent markers, such as orange cones,will be placed at the south end of the stabilized shoulder
during the construction period to ensure that the construction trucks will maintain distance from the
Water Tower and Building at 3380 West Mill Road to minimize vibration impacts.
• Vibration monitoring terminals will be installed at four locations and monitored through all phases of
construction. The locations of the terminals have not been determined; however, one of the four
locations will be installed as close as possible to the foundation of the Water Tower and Building. The
following specific procedures would be followed for the protection of the Water Tower and Building:
➢ Arrival and departure times for all trucks to be loaded and leaving with building materials
will be logged by the construction management team. All scheduled traffic must occur
within defined work hours.
➢ Should an alert be triggered,the time of the alert will be correlated with the arrival times of
all trucks coming to the project site.
➢ If it is confirmed that exceedance is due to operation of a truck associated with the
construction,truck operators will be required to reduce speeds near the Water Tower and
Building so that vibration is reduced.All drivers are to be notified of any speed restrictions.
➢ Should two alerts confirmed to be due to truck vibration occur on the same day,truck trips
will be halted until additional data can be collected and mitigation can be implemented.
308
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
4.0 OTHER REQUIRED SECTIONS
4.1 Use and Conservation of Energ
Currently,electrical service is provided to SYC by PSEG Long Island. The proposed development of the
two boat storage buildings would increase the overall demand for electricity. According to the project
architect,Jeffrey T. Butler, P.E., P.C.,the proposed storage buildings would be served with a 120/208
Volt, 3-Phase, 4-wire, 2,000-amp service (see Appendix P). Upon preparation of the electrical plans,
further consultations would be undertaken with PSEG Long Island. However, due to the projected
additional electrical load,the project architect anticipates service availability.
The proposed buildings would be heated but not cooled, with the heating source planned as the
proposed action includes radiant flooring supplied by the LPG. Heat to the proposed buildings would
be supplied via four 2,000-gallon LPG tanks that are proposed to be contained in a concrete vault
adjacent to the buildings. Each building would be serviced by two LPG tanks. As published by the
United States Department of Energy,55 radiant heat is generated from thermal masses constructed into
the concrete slab floor which then distributes the heat throughout the room and the heat created is
absorbed by objects within the room.As radiant heating relies on the natural circulation of air within
the room to distribute heat,there is more uniform heat distribution throughout the room,resulting in
less heat loss than duct-based systems. As such, the proposed radiant heat is an effective energy-
efficient solution for heating.
4.2 Unavoidable Impacts(Short-Term and Long Term
Short-Term Impacts
Unavoidable short-term impacts are described as "the immediate and temporary results of an action,
for example, noise, dust, and truck traffic during construction of a building."56 The proposed action
would result in unavoidable short-term impacts that would occur during the proposed excavation and
construction activities; however, these impacts would be temporary and cease upon completion of
construction of the project. These impacts would include:
• A temporary increase in truck traffic associated with the site preparation (2 weeks), and
excavation phase (6-7 months) and construction phase (6 months) of the proposed
development. However,as indicated in Sections 3.3 and 3.10 of this DEIS,mitigation measures
have been incorporated into the proposed action to reduce the traffic-related impacts on the
surrounding properties and roadways. Upon completion of construction,the proposed action
will have no adverse traffic impacts post-development.
• Construction-related noise would be generated during site preparation(2 weeks),excavation
phase (6-7 months), and construction phase (6 months) of the proposed development.
However, as indicated in Sections 3.7 and 3.10 of this DEIS, mitigation measures have been
incorporated into the proposed action to reduce the noise-related impacts of the construction
55 https://www.ener y. ov/energysaver/radiant-heating
56 P.79,The SEQR Handbook,Fourth Edition,NYSDEC (2020)
309
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
activities, including compliance with the relevant standards set forth in Chapter 180 of the
Town Code. Upon completion of construction,the proposed action will have no adverse noise
impacts post-construction.
• The proposed Evergreen concrete retaining wall would be constructed with planting trays
that will require approximately two-to-three years before establishment of a"green"wall that
will then blend into the landscape.
Long-Term Impacts
The unavoidable long-term impacts are the continuing impacts of an action, such as the loss of
undeveloped or vacant land with any building project. Upon implementation of the proposed action,
the following long-term impacts would occur and cannot be avoided:
• The proposed development would result in the loss of approximately 634 trees within 5.51±
acres of forested area (Coastal Oak-Beech Forest and Successional Southern Hardwood
communities)with a resultant decrease in habitat availability for the plants,birds,and wildlife
that utilize these habitats. To mitigate for the loss of forest,approximately 135 trees,including
95 Pitch Pine trees,are proposed. Additionally,the applicant will contribute 50 native trees
(10-gallon container typical 1-inch caliper, 5-6 feet tall) for installation at high-priority sites
with the Town of Southold,as identified by the Town Tree Committee,to enhance and beautify
public grounds.
• The proposed clearing would result in a new forest edge,with a resultant intensification of the
existing edge effects at the site. The magnitude of the potential impact will be minimized by
the planting of 27,333 SF of native trees, shrubs and groundcover and would include multi-
layered plantings with abundant conifer trees to minimize light penetration into the new
forest. After establishment of these natural vegetation areas located landward of the
proposed retaining wall,the total forest area on the property would increase from 11.76 acres
to 12.39 acres.
• The proposed action would increase the area of impervious surface on the site by 2.36±acres.
• Stormwater generation would increase post-development due to the projected increase in
impervious surface area. However, all stormwater from the Project Area and off-site
contributing areas would be accommodated and recharged on-site in accordance with Chapter
236 Stormwater Management of the Town Code.
4.3 Irretrievable and Irreversible Commitment of Resources
For any development or new land use,there is a certain commitment of resources(natural and human
or man-made) for consumption, conversion or made unavailable for further use as a result of the
development and/or use. The construction and operation of the proposed development would require
a commitment of natural and human resources,as follows:
310
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Building and construction-related materials would be committed to achieving the proposed
development,including,but not limited to steel and concrete.
• The operation of construction equipment and post-development operations would require
electricity,water resources and fossil fuels.
• Approximately 6.05±-acres of forested and meadow/brushland would be cleared to
accommodate the proposed development due to the required grading program.
• The proposed action would result in the loss of 5.51± acres of forested area (Coastal Oak-
Beech Forest/ Successional Southern Hardwood) and 0.54± acre of meadow and brushland
(Successional Shrubland).
• A water main extension from the SCWA to the subject property would allow for the connection
of additional off-site properties to the public supply by application to the SCWA.
• The water demand for the subject property would increase by approximately 18±gpd (from
1,058±gpd to 1,076±gpd)for potable water,and approximately 220 gallons per year for each
boat that requires service prior to/after storage (170± gallons for spring washing and 50±
gallons for fail power washing)and 218±gpd for irrigation for post-development conditions.
However,the potable supply would be provided by the SCWA and not from on-site wells,thus
decreasing local withdrawal by 1,076± gpd plus the volume associated with boat
washing/power washing services.
• The on-site sewage generation for disposal would increase by approximately 18±gpd (from
1,058± gpd to 1,076± gpd) for post-development conditions, with all sanitary waste being
accommodated with a new I/A OWTS. The existing on-site septic system would be replaced
and upgraded to an I/A OWTS. While on-site sewage disposal increases by 18±gpd,the I/A
OWTS are compliant with the nitrogen reduction goals of the SCDHS.
4.4 Growth-Inducing Impacts
Growth-inducing aspects can be generally described as long-term secondary effects of a development,
which are either directly or indirectly related to the project. The direct growth-inducement aspects of
a project would include the creation of jobs, new institutions (e.g., universities, hospitals) or support
facilities (e.g., major retail stores). Indirect growth-inducement aspects are those that increase the
development potential of an area.
The proposed action is to accommodate a market demand for indoor, climate-controlled storage for
large boats (yachts), which is a use that is permitted under the M-II zoning district. The proposed
action is also consistent with the Comprehensive Plan and LWRP,with the use continuing to support
the maritime industry in the Town of Southold. There is no proposal to increase the number of slips
in the existing marina as the proposed action would not require additional in-water docking. The
proposed storage service would serve to store boats in the off-peak winter season,and access to and
from the SYC facility would take place via Mattituck Creek as the types of boats to be accommodated
are too large for road/trailer transport.The arrivals and departures of the boats to be stored would be
311
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
scheduled with SYC and timed accordingly to monitor maritime activity within Mattituck Creek. A
portion of these storage boat customers may be existing clients of SYC or the Strong's Water Club,boat
owners within the Town,while others are expected to be future boat owners from yacht sales by SYC
or other brokers. The existing infrastructure in place, inclusive of the 50-ton lift and 85-ton lift, is
sufficient to accommodate the existing client base and the anticipated new boats to be stored.
The proposed action is expected to generate approximately 11 new full-time jobs for servicing of the
boats in storage,most of which are expected to be local residents experienced in the maritime industry.
There is a resultant beneficial impact of additional employment and wages for the local population.
As the proposed action may encourage growth in the local boating market, there would be no
corresponding increase in demand for new institutions or support services.
As a result of the proposed action, potable water supply through a water main extension to SCWA
supply wells would be brought to the subject property. The proposed extension on Naugles Drive
would enable properties along Naugles Drive the opportunity to connect to public water once the
proposed action is complete, as detailed in Section 2.2.1. However, any new connection would be
subject to the review and approval of the SCWA.
312
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
5.0 ALTERNATIVES AND THEIR IMPACTS
Pursuant to §617.9(b)(5)(v) of the implementing regulations of SEQRA, a DEIS is to include a range of
reasonable alternatives to the proposed action that are feasible, considering the objectives and capabilities of
the project sponsor. The Amended Final Scope dated April 5, 2021 requires the following alternatives to be
evaluated:
• Alternative 1:As-of-Right(No Action)Alternative
• Alternative 2:Alternative Material Removal Plan
• Alternative 3: Constructing Project on Another Site
• Alternative 4: Construct Proposed Storage Buildings Without Excavation
• Alternative 5: Construct Smaller Building(s)With Less Excavation
• Alternative 6: Reconfiguration or Reconstruction of Existing Buildings On-Site for Larger Boat Storage
The following sections evaluate each of the aforementioned alternatives to the proposed action. It is noted that,
for the explanations provided below,Alternatives 2,3,5 and 6 are not feasible for the Applicant. A comparison
of the proposed action with the No-Action Alternative Plan and Alternative 4 Plan is also provided in the table
below.
313
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 53 -Comparative Analysis of Proposed Plan and Alternatives
No-Action/Existing Proposed Site Plan Alternate 4:
Construction
Without Excavation
Land Use Maritime Maritime Maritime
Project Area 0 6.51±acres 6.11±acres
Volume of Cut Material 0 135,000±CY 2,939±CY
Maximum Depth of Cut and Fill 0 40±feet Cut 19.4±feet Cut
Tree Removal(Greater than 0 595±
6"
Area of Natural Vegetation to 0 6.05±acres 4.75±acres
be Removed
Area of Impervious Surface 2.62±acres 4.98±acres 4.99±acres
Minimum Lot Width 150 feet 740±feet 740±feet
Minimum Lot Depth 150 feet 1,600±feet 1,600±feet
Minimum Front Yard 35 feet 26.5±feet(existing 26.5±feet(existing
building) building)
Minimum Side Yard 25 feet 28±feet 28±feet
Both Side Yards 50 feet 77.7±feet 77.7±feet
Rear Yard 25 feet 91.3±feet 91.3±feet
Landscape/Planted Area 0.24±acre 1.67±acres 2.05±acres
Lot Coverage 30 percent 24.7 percent 24.7 percent
Building Height 35 feet <35 feet 35 feet
Number of Stories 2 2 2
Parking Required Provided 262 23 262 57 262 57
Weekday AM Peak Hour 5 (3/2) 18(14/4) 18 (14/4)
Generation cars trucks
Weekday PM Peak Hour 9 (6/3) 22 (8/14) 22 (8/14)
Generation cars trucks
Sat.Midday Peak Hour 9 (4/5) 9 (4/5) 9 (4/5)
Generation cars trucks
Total Water Usage 1,058±gpd 1,076± d* 1,076± d*
Sanitary Generation/Method Conventional On-Site I/A OWTS I/A OWTS
System
*Does not include boat washing/power washing of 220±gallons per year for each boat requiring
service prior to/after storage.
314
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
5.1 Alternative 1: As-of-Right(No-Action)Alternative
The No-Action Alternative involves leaving the site as it currently remains,absent the proposed action and the
continuation of the site as a full-service marina with boat sales and maintenance services of SYC. The No-Action
alternative would not result in any changes to traffic patterns,utilities provided(e.g.,water usage),air quality,
ecological resources,water resources,or soils and topography. There would be no changes to the visual quality
of the site, or the character of the community. The projected job generation and increased tax revenue would
not be realized. Overall,the subject property is a privately owned parcel situated within the M-II zoning district
of the Town of Southold and the objective of the Applicant is to develop the property in accordance with the
prevailing zoning regulations. Accordingly, the No-Action Alternative does not achieve the objectives of the
Applicant.
5.2 Alternative 2: Alternate Material Removal Plan,Including Barge Transport and On-Site Processing
This alternative includes an alternative method of material removal to eliminate the use of roadways for truck
transport of materials off-site. As part of this review,SYC undertook consultations with four barging companies
to determine if such method is a feasible alternative for the proposed action. As indicated in the
correspondence from H&L Contracting dated June 24, 2021 (see Appendix U), each of the four barging
companies advised that the depths of Mattituck Inlet are not adequate for the types of barges required for
material removal. Specifically,the barges need a minimum of 10 feet draft at low tide to avoid hitting the inlet
floor bottom and damaging the barge.As indicated in Section 2.2.1 of this DEIS and illustrated in the Mattituck
Inlet soundings performed for SYC(see Appendix M),the average depth of draft at low tide is five (5)-to-seven
(7) feet. Additionally,the existing sharp S turns upon entering the Inlet on the first and second corner bends
are very tight and would not allow the width or depth necessary to safely navigate these areas. Accordingly,
the barging of material is not a viable alternative for the proposed action.57
It is also noted that,during preparation of the DEIS and in response to a Planning Board Member meeting held
on-site,the option to install a cement plant on-site to eliminate the need to transport the excavated material
off-site was investigated. Through consultations with LI Precast, it was determined that the total concrete
volume for the proposed project(i.e.,for the cement in the retaining wall,floor slabs and foundations)is limited
to 5,345 CY,of which the total volume of sand in the concrete is limited to 30 percent or 1,604 CY(see Appendix
U). As the proposed action includes 135,000± CY of soil removal,there would be limited benefit to having a
cement plant on-site as the limited amount of sand required for the cement plant(1,604 CY) is approximately
one percent of the total material. Overall, based on the above,the processing of sand with an on-site cement
plant and the potential impacts that arise with on-site processing including dust and noise generation,as well
as the financial cost associated with plant operations,has been determined not feasible.
57 SYC currently accommodates boats and yachts that measure 18-to-133±feet in length,with the typical yacht
size being 50-to-86±feet in length. The proposed two boat storage buildings would be able to store a total of
88 yachts based on an average boat size of 60±feet in length and 17±feet in beam for the winter months only.
These boat storage buildings would be able to accommodate boats 50-to-86±feet maximum in length.Yachts
at lengths of 87 feet or greater are stored in the water. All yachts would be hauled from the water via the
existing 85-ton travelift, with no modifications required to the on-site equipment. As the expected yacht
lengths are currently using the Mattituck Inlet/Creek,there are no navigation restrictions for such vessels.
315
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
5.3 Alternative 3: Construct Project on Another Parcel
This alternative is to consider another parcel for the proposed action; however, this alternative is more
appropriate for actions involving new development rather than a development that is an expansion and
supporting service to a current use that relies upon the infrastructure and staff of the existing business.
Specifically,the SYC operation is a full-service marina, sales, maintenance,and storage facility located on the
subject property,which is a 32.96±-acre parcel partially zoned (i.e., 16.46±acres)and has been developed for
over 60 years for marine use. The construction of the proposed storage buildings on another parcel is not
feasible for the Applicant as the operation to support the storage of yachts(i.e.,existing docks,boat lift,staffing,
maintenance, and service equipment) are located at SYC. Furthermore,the proposed project is designed to
attract large yachts that can only enter and exit by water, and thus, another site equipped with the
infrastructure required is not feasible for this applicant.
Also, as noted in the SEQR Handbook (page 6, "The EIS and the Concept of Reasonableness"), alternate site
locations are not reasonable for consideration by private applicants. As excerpted:
In 6 NYCRR 617.8(a), "irrelevant or non-significant"issues may(reasonably) be eliminated from further
consideration,and in 617.8(f)(5), "the final written scope should include...the reasonable alternatives to be
considered."In 617.9(5)(v), the regulations require that the draft EIS describe and evaluate "the range of
reasonable alternatives to the action that are feasible, considering the objectives and capabilities of the
project sponsor."For example,private applicant site alternatives should be limited to parcels owned
by, or under option to, a private applicant. To demand otherwise would place an unreasonable
burden on most applicants to commit to the control of sites which they do not otherwise have under
option or ownership.(emphasis added)
Furthermore,as excerpted from page 118:
Under which circumstances should a discussion of alternative sites be included in the EIS?
617.9(b)(5)(v) specifically states that for private applicants, alternatives may be limited to sites
that the sponsors own or have under a purchase option. (emphasis added) For direct government
actions, however, there is no parallel limitation, because governments are presumed to have the ability
under eminent domain to acquire any appropriate site.
Accordingly,based on the above,an alternative site location is not appropriate or feasible for the Applicant.
5.4 Alternative 4: Construct Proposed Storage Building(s)Without Excavation
This Alternative Plan includes the construction of two boat storage buildings of similar area to the proposed
action (i.e., 49,000 SF and 52,500 SF) on the existing M-II zoned portion of the subject property without the
topographic modifications that are required as part of the proposed action(see Appendix V). The two proposed
buildings would be placed at the existing average elevations of 36.95±feet AMSL for Building 1 and 37.88±feet
AMSL for Building 2. As noted in Section 3.1 of this DEIS, building height, as defined in §280-4 of the Town
Zoning Code, is "[t]he vertical distance measured from the average elevation of the existing natural grade
adjacent to the building,before any alteration or fill,to the highest point of the roof for flat and mansard roofs
and to the mean height between eaves and ridge for other type roofs." Accordingly, the maximum building
316
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
height of 35 feet from average grade elevations allows for a maximum height of 71.95 feet for Building 1 and
72.88 feet for Building 2.
As the purpose of the proposed action is to accommodate vessels of an average length of 60 feet, but as large
as 86 feet, this alternative design with the buildings at the site's top elevation without excavation cannot
accommodate large vessel storage. Specifically, the large boats cannot be transported via road (either
internally at SYC or public road) because the length and weight of such boats require the vessels to be lifted
directly from the water and hauled via the 85-ton travelift on relatively flat grades. As such, to meet the
intended purpose of the proposed action,this alternative plan would require the new top elevation buildings
to be utilized for smaller boats (300 boats in total), and modifications of the existing Buildings 6, 7 and 8 for
increased roof height such that large vessels could be accommodated in these lower elevation buildings.
Specifically,and as noted earlier in this DEIS,the height of the doors on the existing indoor storage buildings
are approximately 24 feet, and thus, roof heights would need to be increased by approximately 11 feet to
comply with the maximum height requirement in the M-II zoning district However, the roof heights on the
existing buildings cannot be raised.Therefore,the existing buildings would be reconstructed with higher roofs
to accommodate larger boats.The lower-elevation buildings would also be modified for radiant heating,which
is an important component for the types of vessels to be stored indoors. The required LPG tanks are illustrated
on the Alternate Plan.
Access to the new storage buildings would be internal to the subject property via an access driveway situated
between Buildings 7 and 8. As such,for smaller boats brought to the site via trailers,the existing SYC entrance
would be used. It is expected that approximately 50 percent of the boats (i.e., 150)would arrive by trailer and
the remainder via Mattituck Inlet. The arrival and departure of the smaller boats would occur over a similar
three-month time period(September to December[arrival] and April-June [departure]).
Similar to the proposed action,this alternative would require slope stabilization measures to correct existing
slope failure behind Buildings 7 and 8,which has occurred due to the erosion of the upland slope and presence
of unconsolidated materials behind the upland slope face that were deposited by the USACOE as part of past
dredging projects (see historic topographic maps and Chapter 2 [Environmental and Historic Contexts] of the
Phase 1A Archaeological Survey in Appendix T). As indicated on the Alternate Plan in Appendix V of this DEIS,
a concrete retaining wall would be constructed to the south and east of the new storage buildings,which would
accomplish slope stability for both of these areas. As the retaining wall would be largely screened by the
adjacent building from viewers along Mattituck Creek, the type of retaining wall that is proposed for the
preferred action would not be required. Overall,the grading program for this Alternate Plan would result in
approximately 2,939 CY of cut material for export off-site.
It is noted that the Amended Final Scope required a separate alternate design that included only the
reconfiguration or reconstruction of existing buildings for larger boat storage,which is Alternate 6 in Section
5.6 below. As described in the respective subsection, Alternate 6 would adversely impact an important
customer base for SYC(i.e.,storage of boats less than 40 feet)should buildings be reconfigured for large vessels
without any expansion (i.e., new buildings). As such, this Alternative Plan, as Alternative 4, includes both
construction without excavation and the reconstruction of the lower buildings because the Applicant does not
intend to impact the recreational boaters who require storage for vessels of 40 feet or less.
In summary,this alternative includes:
317
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
1. Construction of two storage buildings on the upland area with an approximate FFE of 32 feet AMSL
for each building,and top elevations at 71.95 feet AMSL and 72.88 feet AMSL. Combined,the two
buildings could accommodate approximately 300 smaller boats(less than 40 feet in length).
2. Reconstruction of Buildings 6, 7 and 8 to raise roof elevations by approximately 11 feet to
accommodate larger vessels.
3. Installation of a concrete retaining wall along the perimeter of the development area to stabilize
the internal driveway on the south,and grade changes to the west,north and east.
In comparison to the proposed action and evaluated in the subsections below, the implementation of this
alternative would result in the following:
1. Regrading of the upland area to accommodate building foundations, driveway, parking, and
internal paved area for circulation.
2. Removal of 612 trees with diameters greater than 6 inches(versus the 634 trees required for the
proposed action)to accommodate the required access driveway and storage buildings.
3. Significant viewshed changes from the adjacent Town Preserve, from surrounding residential
properties as well as from Mattituck Creek as the new buildings would have top elevations at 71.95
feet AMSL and 72.88 feet AMSL(see renderings in Appendix Q).
4. Total area of land disturbance would result in approximately 2,939 CY of cut,which is a decrease
of approximately 131,982 CY as compared to the proposed action.
5. Increase in trip generation for the approximately 300 boats expected to be brought to the site via
trailers. It is expected that approximately 150 boats would arrive and depart via trailer.
6. The increase in impervious surface area would be similar to that of the proposed action to
accommodate the new access driveway,boat storage buildings and associated pavement area.
7. SYC would realize a cost savings of approximately$750,000 with the reduction in cut material and
elimination of the Evergreen concrete retaining wall.
8. The proposed haul road would not be required as this this Alternative Plan would rely on the
existing access for construction and post-development arrivals/departures.
9. Three of the existing buildings would be modified to elevate roof heights by 11 feet and new LPG
tanks would be installed for radiant heating. These three buildings would accommodate large
vessel storage,which is consistent with the intent of the proposed action.
As provided by the project engineer, the post-development site data for the Alternative 4 plan is included in
the table below. A comparative analysis to the proposed action is also provided.
318
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 54-Comparative Analysis of Site Data for the Alternative 4 Plan and Proposed Action
Alternative Proposed
Land Use/Cover Type Existing 4 Action Difference
Roads,Buildings and 2.62±acres 4.99±acres 4.98±acres +0.01 acre
Pavement
Forested(Coastal Oak- 17.27±acres 12.52± acres 11.76±acres +0.76 acre
Beech Forest/ (12.6±acres/4.67±acres) (8.71±
Successional Southern acres/3.81±
Hardwood) acres)
Meadow/Brushland 10.83±acres 10.29±acres 10.29±acres +0.00 acre
(Successional Shrubland)
Non-vegetated(Bare 0.29±acre 0.00±acre 0.00±acre 0.00 acre
Earth)
Wetlands(tidal) 0.63±acre 0.63±acre 0.63±acre 0.00 acre
Landscaping/Planted Areas 0.24±acre 2.05±acres 1.91±acres +0.14 acre
Pervious(Gravel and Stone 1.08±acres 1.94±acres 3.39±acres(a) -1.45 acres
blend Pavement)
Total 32.96±acres 32.96±acres 32.96±acres
Notes: (a)Includes 0.67±acres of the proposed haul road to remain post-development.
This alternative retains the same footprint as the proposed action; however, the upland area would not be
excavated to the extent required for the proposed action.As indicated in the table above,as compared to the
proposed action,Alternative 4 would retain an additional 0.76±acre of forested area(Coastal Oak-Beech Forest
and Successional Southern Hardwood) and the meadow/brushland on the subject property but remain the
same as the proposed action and result in a slightly greater area of impervious surface(additional 0.01±acre).
The unvegetated (bare earth) would be removed in its entirety (similar to the proposed action) and area of
landscaping/planted areas would also be greater(additional 0.14 acre). Pervious area(gravel and stone blend)
would be slightly decreased by 1.45±acres(from 3.39±acres to 1.94±acres).There would be no change to the
existing wetland area.
Soils and Topography
Based on the mapped soil types,there are moderate-to-severe engineering limitations associated with
select soils for the development of streets or parking lots due to slopes (PIB and RdB soils are noted as
moderate and PIC soils are noted as severe). This limitation would be overcome with regrading and a
concrete retaining wall,and a proposed access route to the new buildings that maintains a maximum of
6.0 percent slope. There are also severe engineering limitations associated with the development of
streets or parking lots due to high water for Tm soils. However, as explained in Section 2.2.1 and
indicated in Appendix H,depth to groundwater encountered ranged between 45.5 feet bgs and 31.5 feet
bgs and would not be encountered during excavation.Therefore,this limitation would be overcome.
The proposed buildings would be placed within areas mapped as CpE and PIC soil types,which are soils
noted as having limitations of moderate and severe,respectively,due to slopes. The regrading program
would eliminate this limitation. Regarding the proposed landscaping, all plantings would be placed in
soils mapped as CpE and PIC soils,which are noted as having limitations for landscaping due to slopes
319
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
(CpE) and a sandy surface layer (PIC). These limitations would be overcome with regrading and the
importation of topsoil.
As this alternative plan would have a similar footprint to the proposed action,there would be a similar
area of land disturbance. Similar to the proposed action,erosion and sedimentation controls would be
undertaken prior to and during construction.
Regarding topography, this alternative plan would still require regrading for building foundations.
Currently,the elevations in the development area range from 44 feet AMSL to 51 feet AMSL. As indicated
on the Alternative Plan, the proposed buildings would be placed at the existing average elevations of
36.95± feet AMSL for Building 1 and 37.88± feet AMSL for Building 2. Based on a maximum building
height of 35 feet from average grade elevations, Building 1 would have a maximum height of 71.95 feet
AMSL and Building 2 would have a maximum height of 72.88 AMSL. The proposed internal driveway
extension to access the buildings would begin at 7.5±feet AMSL and rise to 31±feet AMSL.
Slope stabilization measures would still be required to stabilize the land area around the upland
development footprint; however,it would be a concrete wall rather the Evergreen concrete wall that is
proposed as part of the preferred action. As indicated by the project engineer and noted on the
Alternative Plan,the total volume of cut material associated with this alternate would be approximately
2,939 CY,which is significantly less than that required for the proposed action. All cut material would
be removed via the existing driveway.
Overall,based on the above,the Alternative 4 plan would have no significant adverse impacts associated
with on-site soils,removal of soils or topographic changes.
Water Resources
Implementation of this alternative would result in a similar volume of water usage and sanitary waste
generation (i.e., 1,076±gpd) as the same number of employees are expected post-development(i.e., 28
total). Regarding water for boat washing and power washing, the volume would be similar
(approximately 220 gallons per year for each boat that requires service prior to/after storage [170±
gallons for spring washing and 50± gallons for fall power washing]) This alternative would include an
extension of the water main, similar to the proposed action.As the landscaped area is greater for this
alternative plan, the volume of irrigation supply would be expected to be greater than that for the
proposed action.
The existing sanitary system that serves the office,marina, and other SYC buildings would be replaced
with an I/A OWTS and an additional I/A OWTS would be installed for the new buildings.Both I/A OWTS
systems would be compliant with the minimum horizontal and vertical separation distances as set forth
in Article 6 of the SCSC.Additionally,all relevant Articles of the SCDHS SCSC applicable to the proposed
action are also applicable to this alternative.
Regarding stormwater management, this alternative would include drainage controls in order to
accommodate a two-inch rain event in accordance with§236-7.A of the Town Code. It would be expected
that the proposed drainage methods would be similar to that which is proposed with leaching pools of
varying depths,French drains,and pervious gravel.
320
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Similar to the proposed action,this alternative would not have a significant adverse impact to the depth
and tidal range of Mattituck Harbor and no would additional dredging be required.The monitoring and
enforcement of maritime traffic within Mattituck Harbor would remain the same as existing conditions
and the proposed action. However, this alternative could potentially introduce additional maritime
traffic into Mattituck Harbor as it is anticipated up to 150 smaller boats would arrive to SYC by water.
There would also be large vessel (yacht) storage that would also arrive by water. While many of these
boats are expected to be from local waters and Mattituck Harbor,this alternative would generate greater
boat traffic than the 88 yachts expected as part of the proposed action. However, an increase in boat
traffic is not expected to result in significant adverse impacts to surface waters as all boats are to be in
operable condition,with no discharges of gray or black water from holding tanks, and no fuel leaks or
heavy exhaust; and also subject to monitoring and enforcement of the USCG and Town of Southold Bay
Constable (see the Boat[Vessel] Study in Appendix M).
The alternative plan would not include additional activities within the wetland areas that were not
included as part of the proposed action and all regulated activities within NYSDEC's jurisdiction pursuant
to the Tidal Wetlands Permit(Permit No. 1-4738-01843/00028) issued on January 31, 2020 have been
approved.Similar to the proposed action,a Town of Southold Board of Trustees wetlands permit would
be required as the striping of an existing area currently used for parking and boat storage adjacent to
Building 8 and French drains on the south side of Building 8 would be completed within the Trustees
jurisdiction.
Overall,based on the above,the Alternative 4 plan would have no significant adverse impacts associated
with water resources.
Ecological Resources
The Alternate Plan (Minimum Fill Export Alternative) includes the as-of-right construction of two boat
storage buildings (52,500 SF and 49,000 SF,respectively) on the higher elevation areas on the western
portion of the M-II zoned area without the cut/removal of 135,000 CY of substrate necessary to bring the
site to elevation 10± feet AMSL. This Alternative requires a net cut/fill of 2,939 CY. Under this
Alternative, existing Buildings 7 and 8 (15,076 SF and 22,245 SF, respectively would be increased in
height to accommodate large boats. Alternative 4 would also include approximately 2,050 linear feet of
concrete retaining walls(up to 29-feet in height),a paved 20-foot-wide road to access the new buildings,
additional gravel-based driveway and parking surfaces, water supply, sewage disposal using new I/A
OWT systems,site grading and drainage,landscaping,and lighting.
The potential ecological impacts of the Alternate Plan are broadly similar to the proposed action. The
Alternate Plan results in the loss of 4.75±acres of upland forest habitat(3.89 acres of Coastal Oak-Beech
forest and 0.86 acres of Successional Hardwood forests), refer to Table 8 in Appendix N (see Table 55
below),compared to 5.51 acres of forest disturbance under the proposed action(Table 6 in Appendix N).
321
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 55-Changes in Ecological Community Coverages Under Alternate Plan
Existing %of Alternate %of Change m %Change
Existing Alternative Acres
Coastal Oak-Beech Forest 12.60 acres 38.2% 8.71 25.2 -3.89 -30.9%
Successional Shrubland 10.83 acres 32.9% 10.29 31.2 -0.54 -5.0%
Buildings and Paved
Surfaces(inclusive of
3.70 acres 11.2% 3.81 11.4 -0.86 -18.4%
gravel and stone blend
pavement)
Successional Southern
4.67 acres 14.2% 9.28 30.0 +5.58 +250.8%
Hardwoods
Unvegetated Sand Slope 0.29 acres 0.9% 0.00 0.0 -0.29 -100.0%
Tidal Wetlands 0.63 acres 1.9% 0.63 2.1 0.0 0.0%
Mowed Lawn with Trees
0.24 acres 0.7% 0.24 0.6 0.0 0.0%
and Landscaping
Total Site 32.96 acres 100% 32.96 100%
Similarly,Alternative 4 would result in slightly less clearing/removal of trees; approximately 612 trees
would be cleared compared to the 634 trees under the proposed action.Alternative 4 would retain 74.6
percent of the trees on the subject property and the proposed action would retain 73.7 percent of the
trees.The 74.6 percent of the trees to be retained as part of Alternative 4 represents 1,796 of the subject
property's 2,408 trees and 56.3 percent of the trees in the M-II zoned portion of the subject property and
98.1 percent of the trees in the R-80 zoned portion of the subject property.
Accordingly, potential project impacts related to lost wildlife habitat and forest ecosystem services are
slightly less under the Alternate Plan as compared to the proposed action. Potential project impacts to
Mill Road Preserve are also similar between the proposed action and the Alternate Plan, due to the
similar minimum distance between clearing limit and the Mill Road Preserve property boundary,
approximately 103-feet and 105-feet,respectively. The potential ecological impacts of the Alternate Plan
to wildlife,forests,tidal wetlands,and endangered/threatened species are expected to be broadly similar
to the potential impacts of the proposed action, as discussed in Forest Resources, Wildlife,
Endangered/Threatened Species,and Tidal Wetlands of the Ecological Report,appended to this DEIS in
Appendix N. Mitigation measures, similar to those for the proposed action, would also be employed
under the Alternate Plan.
Flooding and Climate Change
This alternative plan would be similar to the proposed action in that the two proposed buildings would
occur entirely outside of a SFHA(see Figure 22 in Appendix A).Additionally,the two proposed buildings
would be constructed at a higher elevation than the adjacent floodplain.The adjacent floodplain is Zone
AE with BFE of 8 feet AMSL and two proposed buildings would have a FFE of 32 feet AMSL. Although
located outside of the floodplain,this alternative remains consistent with the NYS requirements for new
construction in the Zone A floodplain as the lowest habitable building level is greater than two feet above
the BFE and would remain consistent with §148-19 (A)(1-2) of the Town Code. Buildings 6 through 8
are existing buildings within the floodplain and the modification would not result in altering the
322
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
floodplain or potential for flooding. Similar to the proposed action,the landscaping proposed for this
alternative would be outside of the mapped floodplain. Therefore, the landscaping would not be
impacted by flooding and storm events.
Similar to the proposed action,MHW at the subject property would increase from 4.0±to 5.3±feet AMSL
if 16 inches of sea-level rise were experienced and thus, would not affect the existing buildings or
infrastructure. The NYSDOS sea-level rise scenarios of 12 inches and 24 inches (see Figure 23 in
Appendix A) and NYSERDA sea-level rise scenarios of 18 inches at 10-year and 100-year recurrence
intervals (2050s) (Figure 24 in Appendix A)are not expected to impact the Project Area. Furthermore,
this alternative would not be impacted by increased groundwater elevation as the new buildings and
drainage infrastructure would be in the upland area.
As the proposed drainage system would be similar to the proposed action,there would be a net increase
with regards to groundwater recharge where increases in precipitation would not impact the operations
at SYC. However,the withdrawal of water on-site from the private supply wells would continue. Overall,
there would be no impact expected on nearby wells.
Overall,based on the above,the Alternative 4 plan would have no significant adverse impacts associated
with flooding and climate change.
Consistency with Community Plans and Studies
Land Use and Zoning
This Alternative Plan would maintain the maritime use of the subject property, but the new storage
buildings would serve smaller boats and the lower building modifications would serve the larger vessels.
This alternative plan would include the same post-development total GFA for on-site buildings as the
two new buildings are of the same area as that proposed but would not require as extensive of land
disturbance as the proposed action and would be constructed at a higher elevation closer to the
surrounding residential and recreational uses. Similar to the proposed action, a landscaping plan and
site lighting plan would be prepared consistent with the Town of Southold Chapter 280 Article XX and
Chapter 272.
Access to the two new buildings would be provided via the existing SYC access on West Mill Road,with
a new internal driveway extension from the lower development area to the upland area. The new
driveway extension has been designed to consider the existing topography of the Project Area and allows
for vehicles with boat trailers to safely traverse the property. Similar to the proposed action, the
driveway and proposed parking areas would be stone blend pavement.
The area surrounding the two storage buildings would be screened by a concrete retaining wall and the
existing woodland area that would be maintained around the new development area. This alternative
would provide four less parking stalls than the proposed action as the four parking stalls proposed on
the south side of Building 8 are eliminated under this alternative as the gravel driveway to access the
west side of Building 8 would remain. Additionally, a 20-foot-wide access route to the new buildings
would be constructed on a 6 percent slope.
323
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Also,as part of this alternate plan, Buildings 6, 7 and 8 would be reconstructed to increase the building
height from 24 feet to 35 feet in order to accommodate larger vessels,although those vessels requiring
door heights of 35 feet or greater could not be accommodated. In addition to radiant floors being
provided in the two new boat storage buildings,Buildings 6 through 8 would now provide radiant floor
heating and three additional LPG tanks would be installed. The overall impact of the land use for this
alternative is similar to the proposed action as a portion of the existing forested upland area would be
cleared and developed for boat storage.The proposed development for this alternative,which is similar
to the proposed action,is in accordance with the goals and objectives in the 2020 Comprehensive Plan.
As indicated in Table 53,similar to the proposed action,this alternate plan would comply with the bulk
and dimensional requirements of the M-11 zoning district Under this alternative,the minimum lot width,
minimum lot depth, minimum front yard, minimum side yard,both side yards,rear yard,lot coverage,
building height,and number of stories would be the same as the proposed action.This alternative would
include greater landscaped areas than the proposed action.
Additionally,this alternative would require 0.01±acre more of impervious surface and provide for 0.38±
acre more of landscape area(planted areas only).
Consistency with Plans
Southold Town Comprehensive Plan Update(Adopted September 2020)
As this alternative includes a similar development to the proposed action (i.e., continued but expanded
maritime use for boat storage),it remains consistent with the Land Use and Zoning,Transportation and
Infrastructure,Community Character,Natural Resources and Environment,Economic Development,and
Natural Hazards goals outlined in Table 30.This alternative is more supportive of Land Use and Zoning
Goal 6, Natural Resources and Environment Land Resources Section Goal 1 Objective 1.4, Goal 2
Objectives 2.1 and 2.2 than the proposed action as the topography of the subject property would not be
modified like the proposed action and 22 less trees would be removed. Overall,based on the above,the
Alternative 4 plan would have no significant adverse impacts associated with the alternative's
consistency with the 2020 Comprehensive Plan.
Town of Southold Local Waterfront Revitalization Program
This alternative includes a similar development to the proposed action and is,therefore, subject to the
same 13 policies of the Town of Southold LWRP.This alternative would have a greater impact to Policy
3 as the new boat storage buildings would be situated at a higher elevation than the proposed action and
would impact the visual quality of the surrounding area greater and the higher height of Buildings 6
through 8 would result in a greater visual impact than the proposed action. However,this alternative is
more supportive of Policy 6 as less impacts to the forested area would result and the quality and function
of the ecosystem would not be as greatly impacted as the proposed action. As the proposed action is
consistent with all policies,this alternative would also be consistent.
Town of Southold Town Code Chapter 275-Wetlands and Shoreline
This alternative is similar to the proposed action in that it would include striping to formalize parking
stalls and stormwater management infrastructure on the south side of Building 8 would be within 100
324
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
feet of Town-identified wetlands. As discussed in Sections 2.2.2 and 3.1.2, the proposed action is
consistent with all Parts set forth at §275-12 (Standards for Issuance of Permit). Therefore, this
alternative would also be consistent with all Parts set forth at§275-12.
Mattituck Watershed Management Plan
Similar to the proposed action,this alternative would replace and upgrade an existing septic system with
an I/A OWTS. As such, the proposed sanitary system would reduce nitrogen loading and be more
protective of groundwater quality than continuing to utilize the existing conventional septic system.As
the proposed action is consistent with the Mattituck Watershed Management Plan,this alternative would
also be consistent.
NYSDOS Significant Coastal Fish and Wildlife Habitat
Similar to the proposed action, this alternative would take place outside of designated NYSDOS
Significant Coastal Fish and Wildlife Habitat. Therefore, this alternative would not have a significant
adverse impact on the adjacent Significant Coastal Fish and Wildlife Habitat.
Article 6 of the SCSC-Single-Family Residences,Realty Subdivisions,Developments and Other Construction
Projects
This alternative would include the same sanitary waste generation as the proposed action,1,076 gpd,as
the same use is proposed. Therefore,this alternative would be consistent with Article 6. Furthermore,
the Applicant would still be required to file a restrictive covenant with the SCDHS to reduce the design
flow for the M-II zoned parcel. Furthermore, similar to the proposed action, the I/A OWTS would be
designed to reduce total nitrogen in treated effluent to a minimum of 19 mg/L, in accordance with
Section 760-1907D.2 in Article 19 of the SCSC.
Article 7- Water Pollution Control
As discussed in Sections 2.2.1 and 3.1.2,the subject property is not subject to Article 7 restrictions as it
is not located in a regulated deep recharge area and is not located within an area that is 1,500 feet
upgradient or 500 feet downgradient of a public supply well that screens in Upper Glacial aquifer, or
other water supply sensitive area.Therefore,this regulation is not applicable to Alternative 4.
Article 12 of the SCSC-Toxic and Hazardous Materials Storage and Handling Controls
As discussed in Sections 2.2.2, 3.1.2, and 3.2.2,the seasonal storage of yachts would not require SYC to
modify the quantity and types of chemicals to be stored on-site. SYC would continue to maintain its
Category 51) -Aquatic Antifouling certification and apply for recertification when required. Therefore,
this alternative is consistent with Article 12.
Human Health
Similar to the proposed action,the Fire Safety Plan developed by SYC to provide hazard locations,utility
and water supply information, and emergency procedures for its employees would be utilized (see
325
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Appendix P).As the Mattituck Fire Department indicated service availability for the proposed action,it
is expected that the Mattituck Fire Department would be able to serve this alternative.
This alternative would require three additional 2,000-gallon LPG tanks than the proposed action to
accommodate the radiant heat required for winter storage in Buildings 6,7,and 8.The LPG tanks for the
new buildings would remain the same as the proposed action.
All regulated toxic and hazardous materials stored and used at SYC facility would remain the same as the
proposed action and existing conditions as maintenance and repairs would continue to be offered on-
site.
Additionally,this alternative would have a similar impact on surrounding wells as the proposed action.
This alternative would not connect to public water and the existing wells would remain in use for potable
water and irrigation. The Groundwater Modeling Report, included in Appendix L, concluded the
proposed action is not predicted to have any impact hydraulically on the nearby surrounding domestic
supply wellhead zones of influence. The model additionally demonstrated that the neighboring wells
would not be impacted with respect to groundwater quality as a result of the proposed site excavation.
Furthermore,similar to the proposed action,groundwater would not be encountered during excavation.
Additionally,this alternative would integrate a similar stormwater management infrastructure program
as the proposed action and the recharge volume would be similar
Overall,based on the above,the Alternative 4 plan would have no significant adverse impacts associated
with human health.
Transportation
The TIS in Appendix 0 of this DEIS evaluated this alternative development plan. As summarized in the
TIS,the primary difference between the two proposals (i.e.,proposed action and the alternative plan)is
that the two buildings proposed under the project alternative would be constructed at approximately
the existing grade of the site and would not require excavation other than grading to provide a level
surface for construction. Once completed,the use of the two buildings would be as storage, consistent
with the proposed use under the proposed action. However,the two new buildings would be used for
the storage of smaller boats then the two buildings to be constructed under the proposed action. The
access roads to the new buildings under the project alternative will not support the use of travel lifts
capable of transporting large boats to storage in the new buildings. Also, this alternative includes
elevating the roof heights of three existing buildings to accommodate large vessel storage.As such,this
alternative would still require 11 new employees working Monday thru Friday. As with the proposed
action,the buildings will be used for long term storage and boats will not be stored in the buildings for
launching at the owner's use,as is commonly done with rack storage of boats at many marinas.The only
boats available for use by owners will be those kept in one of the 40 existing slips at the Yacht Center.
Table 56,as excerpted from Table 7 (Site-Generated Traffic Project Alternative) in the TIS includes the
estimated site-generated traffic anticipated during typical peak hours based on the ITE trip generation
rates for a 40-slip marina with 11 new employees to support the work to be done in the new storage
326
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
buildings. As noted,other than the difference in the elevation of the buildings and increased roof heights
of three existing buildings, the primary difference would be that once completed, the new buildings
under the alternative will be used for the storage of significantly smaller boats then would the buildings
constructed under the proposed action. The proposed action would store boats of an average of 60 feet,
in two new buildings, while the buildings constructed under this alternative would store up to 300
smaller boats in the two new buildings.Boats more than 60 feet cannot be trailered to the site and must
arrive via the water. Smaller boats, as are anticipated to be stored in the alternative, can readily be
transported to and from the site by trailer. It is anticipated that half the smaller boats stored at the site
will arrive and depart by trailer(i.e.,150 of the total 300 boats). The TIS considered transport in and out
of the facility over the three-month period.The arrival and departure of these boats from storage is not
reflected in Table 6 as excerpted from the TIS(see Table 55),as these trips will generally not occur during
peak hours and will occur at a rate of a few a day.
Table 56-Site-Generated Traffic for Project Alternative
Vehicle,Trips,per Hour
Weekday A.M. Weekday P.M. Saturday
Generator Peak flour Peak Hour Peak Hour
Enter Exit Enter Exit Enter Exit
Existing Marina with 40 3 2 6 3 4 5
slips(Land Use Code 420)
New Employee Trips 11 2 2 11 0 0
(11 New Employees)
Total 14 4 8 14 4 5
Table 57,as excerpted from Table 8(Comparison of Site Generated Traffic,Proposed Projectversus Alternative
Project)in the TIS compares the site generated characteristics of the two alternatives.
Table 57-Comparison of Site-Generated Traffic for Proposed Project vs.Alternative Plan
Vehicle Trips per Hour
Weekday A.M. Weekday P.M. Saturday
Use Peak Hour Peak Hour Peak Hour
Enter Exit Enter Exit Enter Exit
Proposed Project 14 4 8 14 4 5
Alternative Project 14 4 8 14 4 5
Difference 0 0 0 0 0 0
327
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
This alternative would still require 11 new employees working Monday thru Friday as does the proposed
action. The alternative will generate the same amount of traffic as does the proposed action during the
hours of analysis.The primary difference with respect to traffic impacts once the project is completed,is
the new buildings under the alternative will be used for the storage of significantly smaller boats then
would the buildings constructed under the proposed action. This alternative would store up to 300
smaller boats,of which approximately half would arrive by trailer and would have a greater traffic impact
than the proposed action (which includes boats arriving and departing by water). As noted above,the
above tables reflect vehicular trips in the peak hour. As the alternative would increase boat trailers by
approximately 150 over a three-month period,the peak hour may not be affected. As such,the peak hour
trips are the same for the proposed action and this alternative plan.
Aesthetic Resources
The two proposed additional buildings would be situated west of Buildings 7 and 8 would be placed at
the existing average elevations of 36.95±feet AMSL for Building 1 and 37.88±feet AMSL for Building 2.
The maximum building height of 35 feet from average grade elevations allows for a maximum height of
71.95 feet for Building 1 and 72.88 for Building 2.Under the proposed action,the proposed buildings are
39'3"from grade to the eave and 45'8"from grade to the top of ridge. The mean roof height is 42'6".
With a proposed 10-foot FFE for both buildings,the top(mean height between eave and ridge)elevation
of the buildings would be 55.67 feet ASML. Therefore,this alternative would result in atop height 16.28±
feet higher than the proposed action for the proposed additional buildings.
As indicated in the Renderings A-9 and A-10 in Appendix V of this DEIS, from the east and southeast,
Alternative 4 would alter the viewshed with the proposed buildings in the upland area. Specifically,
views of the property from Mattituck Creek would consist of the building mass rather the vegetation and
tree line that is currently visible and would also exist in the post-development conditions for the
proposed action. As a result of the increase in top elevation of the buildings,viewshed changes would
also be expected from the adjacent Town Preserve and surrounding residential properties. Additionally,
the replacement in-kind of Buildings 6, 7 and 8 to increase the roof height so the buildings can
accommodate larger boats would slightly alter the viewshed but the 11±-foot increase for a maximum
height of 35 feet would not significantly noticeable. Rendering A-9 illustrates only Buildings 7 and 8,
which demonstrates a minor change in views of these buildings from the Creek.
As Alternative 4 would not require the proposed haul road,there would be no changes along West Mill
Road.
Regarding landscaping and lighting plan, the Alternate Plan would be developed consistent with the
requirements set forth at Chapter 280 Article XX Landscaping, Screening, and Buffer Regulations and
Chapter 172 of the Town Code (Outdoor Lighting).
Overall,based on the above,the Alternative 4 plan would result in significant changes to the visual setting
at the subject property. Rather viewing the roofline of the proposed buildings, this Alternative Plan
would result in the complete mass and height of the new buildings in the upland area to be visible. The
evergreen retaining wall and supplemental plantings that are visible behind the proposed buildings
would not be visible under this Alternative Plan. As such,while this Alternate Plan would result in less
material to be cut and removed from the subject property,it would have a greater aesthetic impact than
that proposed.
328
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Community Character
Similar to the proposed action,the existing maritime use at the subject property would continue under
this alternative.The overall character of the site would remain the same as existing conditions as similar
buildings currently exist along the creek,on the subject property and are part of the established maritime
and commercial uses in this area. However,this alternative plan would alter the visual setting by placing
the buildings in the upland area and eliminating the current tree line view that would be maintained
under the proposed action.
Open Space and Recreation
Developing the two boat storage buildings on the upland area of the subject property would potentially
have an impact on Mattituck Harbor and Mill Road Preserve. As depicted on Renderings A-9 and A-10 in
Appendix V,the post-development views from Mattituck Harbor as part of this alternative would modify
the viewshed more than the proposed action.The view of the upland area would be modified by locating
the proposed boat storage buildings at a higher elevation and views of the forest area would be reduced
as a result.Additionally,raising the height of Buildings 7 and 8 would reduce views of the upland forest
area. The views of Buildings 9 and 10 would be more intensive as part of this alternative with regards
to potential impacts to Mill Road Preserve as the buildings would be sited at a similar elevation to the
most southern trail of the Preserve.As no impact to Oregon Marsh State Tidal Wetlands is anticipated
for the proposed action,the same would remain for this alternative as the timing of the boat arrival and
departures would not coincide with the more intensive use time period of Oregon Marsh State Tidal
Wetlands. This alternative assumes that half of the vessels to be accommodated would arrive via
Mattituck Harbor and would result in a greater number of vessels utilizing Mattituck Harbor. However,
the increase in maritime traffic would not impact the flow of traffic on Mattituck Harbor.It is anticipated
that approximately half of the vessels would come by water and half would be trailered to SYC.
Noise
Construction Noise Impacts
As excerpted from the Acoustic Report,the difference in construction noise impacts in the proposed
plan as compared to the alternate plan was assessed using the Excavation-Drainage phase.This phase
is anticipated to have the highest sound levels created once the excavation is complete and the two
plans would be sufficiently different to compare.The same equipment utilizations, sound levels, and
traffic generation were used for evaluation,with the only changes made being the location and grading
to match the Alternate Site Plan. Figures 30 and 31 in the Acoustic Report present the graphic
representation of the data during construction for the peak hour sound level generation and 8-hour
Leq sound levels predicted at the subject property.Figures 32 through 35 in the Acoustic Report show
the predicted 8-hour Leq and peak hour sound levels at West Mill Road and Cox Neck Road.
Table 58 and 59(as excerpted from Tables 24 and 25 in the Acoustic Report)summarize the projected
sound levels for all receiving locations for the 8-hour Leq and peak hour Leq, respectively,as well as
the difference in predicted sound pressure levels from the proposed plan.
329
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 58-8-Hour Sound Pressure Levels at All Receivers for Construction Activities and Additional
Traffic with the Alternate Site Plan and Difference in Sound Pressure Level compared to the Proposed
Plan
Existing Proposed Alternate
Receiver Location Condition Plan Plan Difference
Number (dBA) Construction Construction (dBA)
dBA dBA
R1 5106 West Mill Road 44 50 51 1
R2 800 North Drive 44 76 78 1
R3 805 North Drive 44 69 71 2
R4 2010 West Mill Road 44 57 61 4
RS 4105 West Mill Road 50 57 60 3
R6 200 East Mill Road 44 60 58 -2
R7 750 East Mill Road 44 59 59 0
R8 3329 Grand Ave 44 68 69 0
R9 3001 West Mill Road 46 52 54 2
R10 1525 West Mill Road 50 62 62 0
R11 1480 West Mill Road 52 64 ' 66 2
R12 1065 West Mill Road 52 64 66 2
R13 155 Breakwater Road 52 64 66 2
R14 2100 Cox Neck Road 57 66 66 0
R15 2695 Cox Neck Road 55 66 ' 66 0
R16 1475 Cox Neck Road 54 65 65 0
R17 1020 Cox Neck Road 56 61 61 0
R18 55 Middle Road 60 62 62 0
330
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 59-Peak Hour Sound Pressure Levels at All Receivers for Construction Activities and
Additional Traffic with the Alternate Site Plan and Difference in Sound Pressure Level compared to
the Proposed Plan
Existing Proposed Alternate
Receiver Location Condition Plan Plan Difference
Number (dBA) Construction Construction (dBA)
dBA dBA
R1 ' 5106 West Mill Road 44 57 58 2
R2 800 North Drive 44 84 87 2
R3 805 North Drive 44 77 80 3
R4 2010 West Mill Road 44 65 70 5
RS 4105 West Mill Road 49 65 68 3
R6 200 East Mill Road 44 68 66 -2
R7 750 East Mill Road 44 67 68 0
R8 3329 Grand Ave 44 77 78 1
R9 3001 West Mill Road 46 58 61 3
R10 1525 West Mill Road 50 64 64 0
R11 1480 West Mill Road 52 66 67 1
R12 1065 West Mill Road 52 66 68 1
R13 155 Breakwater Road 52 66 68 2
R14 2100 Cox Neck Road 57 68 68 0
R15 2695 Cox Neck Road 55 68 68 0
R16 1475 Cox Neck Road 54 66 66 0
R17 1020 Cox Neck Road 56 62 62 0
R18 55 Middle Road 60 62 62 0
As indicated in the summary tables above,there would be an overall increase in sound levels because
the grade would no longer function as an acoustic barrier and the transmission loss provided by the
retaining wall would be eliminated. This is most evident at R-4, where sound level increases range
from 4-5 dBA,as well as additional receivers which show a 1-3 dBA increase. It should be noted,that
R6 shows a 2 dBA reduction in expected sound level with the alternate plan. However, all other
receptors show either no difference, or an increase in sound levels when the Alternate Site Plan is
implemented.
331
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Build Condition Impacts
As discussed in Section 3.7 of this DEIS and in the Acoustic Report,the Build Condition for the proposed
plan has no impact predicted on the nearby receivers.The most considerable difference between the
proposed plan and the alternate plan is the internal driveway ramp which would need to be used to
access the storage buildings.Vehicles using this ramp would need to accelerate more significantly to
access the area,leading to increased sound generation.Figures 44-46 in the Acoustic Report presents
the graphic representation of the data, while Table 60 below (as excerpted from Table 26 in the
Acoustic Report) presents the predicted sound levels at all receivers. The Build Condition would still
comply with the Noise Code and would have the same anticipated sound level except at R2 where the
increase due to the alternate design is only 1 dBA,which is not perceivable.
332
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Table 60-Sound Pressure Levels at All Receivers for the Build Condition with the Alternate Site Plan
and Difference in Sound Pressure Level compared to the Proposed Plan
Description
Existing Proposed Alternate
Receiver Location Condition Plan Plan Difference in
Number (dBA) Construction Construction Sound Level
dBA dBA
R1 5106 West Mill Road 44 44 44 0
R2 800 North Drive 44 48 49 1
R3 805 North Drive 46 45 45 0
R4 2010 West Mill Road 47 44 44 0
R5 4105 West Mill Road'I 51 50 50 0
R6 200 East Mill Road 44 45 45 0
R7 750 East Mill Road 44 44 44 0
R8 3329 Grand Ave 44 45 45 0
R9 3001 West Mill Road 47 47 47 0
R10 1525 West Mill Road 60 60 60 0
R11 1480 West Mill Road 63 63 63 0
R12 1065 West Mill Road 63 63 63 0
R13 155 Breakwater Road 63' 63 63 0
R14 2100 Cox Neck Road 65 65 65 0
R15 2695 Cox Neck Road 66 66 66 0
R16 1475 Cox Neck Road 64 64 64 0
R17 1020 Cox Neck Road' 62 62 62 0
R18 55 Middle Road 63 63 63 0
Air Quality
Similar to existing conditions and the proposed action, this alternative would not result in emission
sources at SYC requiring NYSDEC air permits and long-term air quality impacts would be
inconsequential. Post-development,the addition of stationary emission sources is not proposed as part
of this alternative and vehicular traffic due to the expansion will be the same as the proposed action.As
more trees would be retained as part of this alternative, the amount of carbon sequestered would be
greater than the proposed action. However, the carbon sequestered as a result of hard clam farming
would be the same as existing conditions and the proposed action as the current CCE FLUPSY operations
333
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
would be maintained during both the proposed action and this alternative.Therefore,the Alternative 4
plan would have similar impacts and benefits as the proposed action.
Social and Economic Impacts
This alternative would not modify the proposed services or projected employment post-development
assumed under the proposed action.Additionally,the same economic impacts,both direct and indirect,
would be experienced under this alternative. Therefore, the Alternative 4 plan would have similar
beneficial social and economic impacts to the proposed action.
Construction-Related Impacts
The potential construction-related impacts associated with this Alternative Plan would be less than the
proposed action. All construction vehicles would enter and exit the subject property via the existing
access to SYC. The construction of the temporary haul road and stabilized RCA shoulder would not be
required as part of this alternative.The security booth would be located at the existing entrance to SYC
to house the site manager who would be responsible for directing trucks to the Construction Excavation
Area,inspecting exiting vehicles,and enforcing safety protocols.
Site preparation and clearing would be less than the proposed action as less trees would be removed.
Additionally, the pre-construction geotechnical borings would not be required within the southern
footprint of Buildings 9 as the initial soil borings completed within the new location for Building 9 did
not identify loose soil deposits.As provided by the project engineer,the approximately 2,939 CY of cut
material would require a total of approximately 98 trucks for material removal. The construction phase
would be similar to the proposed action,with this Alternative Plan requiring a concrete retaining wall,
internal driveway, drainage infrastructure and two boat storage buildings of the same area (i.e.,49,000
SF and 52,500 SF). There may be a slight increase in construction time required for the replacement in-
kind to Buildings 6, 7 and 8; however, overall,the total construction duration would be approximately
12-to-13 months.The alternative would require a similar equipment program as the proposed action.
Similar to the proposed action, measures would be taken to minimize the potential for erosion and
sedimentation and an Erosion and Sediment Control Plan would be prepared.
Similar to the proposed action,all trucks associated with the construction of the proposed action would
be limited to traveling at 30 mph on West Mill Road and all neighboring roads.The posted speed limit on
West Mill Road is 35 mph.
Similar to the proposed action, the heating source for the storage buildings is not natural gas and
therefore, an extension of a natural gas line would not be required. The proposed heating source, as
discussed in Section 3.1.2,would be above ground LPG tanks in concrete vaults. Buildings 6,through 8
would include LPG tanks for heating,which would be more than the proposed action.
This alternative would abide by the same measures to mitigate noise on surrounding properties:
• No work would be performed on Federal or State holidays,or on Sundays.
• All trucks would be Tier 4 certified by U.S. EPA standards and all gasoline or diesel-powered
machinery would be equipped with adequate mufflers.
334
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
• Any vehicle that requires the use of a back-up alarm would use a white noise back-up alarm
rather a single tone beep.
• All trucks and drivers would be instructed to disengage all Jake Brake mechanisms once turning
on to Cox Neck Road from County Route 48.
This alternative would abide by the same dust mitigation measures to minimize the potential associated
impacts. In accordance with 6 NYCRR Subpart 217-3,heavy-duty vehicles would not remain idling for
more than five minutes at a time. Furthermore,the use of all Tier 4 certified by U.S.EPA standards trucks
and equipment would further reduce emissions of particulate matter(PM)and nitrogen oxides (NOx).
Similar to the proposed action,short-term air quality impacts may occur during construction activities.
As less trucks would be required for this alternative,it is expected the off-road mobile emissions would
be slightly less than the proposed action. Fugitive dust would also be generated during construction.
However, as the clearing area is smaller than the proposed action and construction duration would be
similar if not longer than the proposed action, it is anticipated the total TSP emission rate for this
alternative would be slightly less than the 101.5 tons calculated for the proposed action.
Similar to the proposed action,all construction activities would be overseen by a Construction Manager
and dictated by a Construction Management Plan developed in coordination with the Town of Southold.
The Construction Manager will facilitate coordination among the appropriate governmental
agencies/departments and interested parties to minimize potential construction impacts in the
surrounding area.It is also anticipated that the Town of Southold will provide independent oversight on
behalf of the public.While the Applicant will strive to ensure that impacts as a result of demolition and
construction are minimized, the public can express any issues during construction to the Town, who
would then notify the Applicant; and, if necessary, the Town could oversee the implementation of any
corrective action.
Overall,the Alternative 4 plan,with the same mitigation proposed,would not result in significant adverse
impacts during construction.
Archaeological and Cultural Resources
As the Phase IB survey conducted for the proposed action concluded no archaeological sites would be
impacted.the implementation of this Alternative Plan would not have any significant adverse impacts on
archaeological and cultural resources.
5.5 Alternative 5: Construct Smaller Building(s)With Less Excavation
This alternative would include a reduction in the size of the two proposed buildings in order to reduce the
volume of material to be cut and removed from the site. However, the proposed concrete and Evergreen
concrete retaining wall would still be required and the construction cost would not make this an economically
viable plan for the Applicant.
335
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
5.6 Alternative 6: Reconfiguration or Reconstruction of Existing Buildings for Larger Boat Storage
This alternative includes the reconfiguration or reconstruction of existing buildings for larger boat storage,
which would impact the storage capacity for smaller boats (less than 40 feet). The intent of this alternative is
to eliminate the proposed excavation of adjacent land;however,this alternative would have a significant impact
to the local boating community with smaller vessels that rely upon SYC for storage (and the accompanying
winterization and pre-launch preparation). Upon implementation of this alternative,SYC would be required to
significantly decrease or eliminate service to smaller vessels. Accordingly, this alternative is not feasible for
the Applicant unless additional buildings can be constructed at the upper elevation for smaller vessels, as
presented in Alternative 4.
5.7 Alternative 7:Alternative Material Mitigation Plan
An alternative material mitigation plan has been evaluated to reduce the volume of material to be removed
from the subject property by placing approximately 13,500 cy of material on the R-80-zoned parcel. The
material would be placed within the Successional Shrubland area at a depth of approximately 12 inches and
setback approximately 20 feet from the Successional Southern Hardwoods. The resultant impact on
transportation would be the elimination of 450 trucks from the excavation phase, which would reduce the
excavation phase by 11.25 days or approximately two weeks (as the proposed excavation phase would occur
Monday-Friday only).
It is noted that the volume of material was based upon the guidance and direction of Dr. William Bowman,
project ecologist. As indicated in the Ecological Report(see Appendix N),the material would be placed within
an 8.60-acre portion of the successional shrublands located on the R-80 zoned parcel. Fill would be placed at
a depth of approximately 12 inches above the existing grade throughout the 8.60-acre placement area. The
northern and eastern margins of the fill placement area correspond to existing earthen access paths. No
material will be placed within 25-ft(minimum)from existing stands of trees within the Successional Southern
Hardwood forest areas. The setback of the proposed fill placement area is 25 to 75 ft from the northern
property boundary, 75 to 200 ft from the southern property boundary, and 35 to 100 ft from the eastern
property boundary.
The ground-and shrub-level vegetation within the successional Shrubland would be cut close to ground level
and the approximately 12-inches of sand/sandy loam soils from the excavation area would be placed on the
existing grade.The cut aboveground biomass from existing herbaceous vegetation,woody vines and brambles,
small woody shrubs and trees(i.e.,less than 6-inches in DBH)would be collected and removed before spreading
of material. The new sandy soils would be seeded with a native upland grassland seed mix comprised of native
warm season grasses, such as switch grass (Panicum virgatum), Indian grass (Sorghastrum nutans),and little
bluestem (Schizachyrium scoparium). These warm-season grasses provide high quality habitat for wildlife
(including grassland birds, small mammals, and raptors), including food resources, nesting sites, and cover
during winter months.
The dominant shrubs and vines currently present in the successional Shrubland will also re-colonize the seeded
fill placement area over time due to 1) seed dispersal by birds and small mammals and 2) some limited re-
sprouting of woody trees and shrubs from cut stumps through the shallow sandy soil.
336
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
There are approximately 155 trees(greater than 6-inches in DBH)located within the 8.6-acre placement area.
To avoid impacts to the root systems of trees within the proposed placement area,no fill will be placed within
3 to 10-ft of existing tree stems (depending on the size of the tree). As indicated in Section 2.4.1 of this DEIS
and discussed in the Ecological Report, many of these trees are in poor condition due to extensive loads of
invasive vines, specifically Asiatic bittersweet. Due to these tree protection measures, the proposed tree
clearing under this alternative would be similar to the proposed action,as described in Table 7 of the Ecological
Report.
Similar to the proposed action, this alternative plan results in the loss of 5.51 acres of upland forest habitat
(4.32 acres of coastal oak-beech forest and 1.19 acres of successional hardwood forests) (see Tables 6 and 9 in
the Ecological Report). Under this plan, an additional 8.60 acres of the successional shrubland would be
disturbed through clearing of existing vegetation and placement of sandy loam fill. After establishment ground
coverage of the placed material through seeding of warm season grasses, there would be no substantial
difference in the ecological community composition of the subject property as compared to the proposed
action. However, after several growing seasons, the plant community composition of the Successional
Shrubland areas would likely be similar to existing conditions,albeit with a larger component of native warm
season grasses,due to the re-sprouting of woody trees and shrubs from cut stumps through the placed fill and
re-colonization of these species through seed dispersal. Due to the likely increase in warm season grass
coverage under this alternative (in the short term),the ecological community designation for these areas was
changed to Successional Shrubland and Successional Old Field.
This alternative plan would result in an increase in short-term impacts to wildlife,such as small mammals and
reptiles,including Eastern Box turtle,as compared to the proposed action,as there would be an increase in the
area of project disturbance by approximately 8.6 acres and include the successional shrubland that was largely
excluded from construction activities under the proposed action. It is expected that there would be mortality
to small mammals and herptiles during clearing and grading activities,although some organisms would likely
successfully shelter in underground burrows.With the exception of Eastern Box turtles, the small mammals
and herptiles that inhabit the site's successional shrublands consist of abundant species with stable
populations and,accordingly,the displacement or mortality of individuals at the site are not likely to adversely
impact the regional populations of these species. Potential adverse impacts to Eastern Box turtle will be
minimized by conducting sweeps or surveys for box turtles prior to commencement of clearing, grading, and
excavation activities, and relocation of any observed turtles to on-site areas that will not be disturbed. Silt
fencing or other barriers will be installed around work areas to prevent turtles from returning to construction
areas.
The new successional meadow habitat created after fill placement and establishment of warm season grasses
would provide higher quality habitat compared to the existing conditions. However,this habitat improvement
is expected to be temporary(i.e.,several years to a decade or more)as the recruitment of invasive species such
as autumn olive (Elaeagnus umbellate), multiflora rose (Rosa multiflora), and Asiatic bittersweet (Celastrus
orbiculatus)would return the proposed placement area to its existing conditions over time.
The potential project impacts to Mill Road Preserve would be similar between the proposed action and the
Alternate Plan 7, due to the similar minimum distance between clearing limit and the Mill Road Preserve
property boundary. Furthermore,the potential ecological impacts to forests and forest wildlife,are expected
to be broadly similar to the potential impacts of the proposed action,as there are no differences in project scope
between this alternative and the proposed action within these forest areas. Mitigation measures similar to
those included in Section 2.4.3 would also be employed under this alternative.
337
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
5.8 Alternative 8:Alternative Routing Plan
This alternative includes the use of Bergen Avenue for outgoing(full)trucks and the use of Cox Neck Lane for
incoming (empty) trucks, during the excavation phase only. Arriving trucks would follow the original Truck
Route plan,making a left turn from east bound Sound Avenue onto north bound Cox Neck Road/West Mill Road.
Departing trucks hauling material from the site would utilize West Mill Road/Cox Neck Road and then turn
west onto Bergen Avenue to Sound Avenue. This alternate truck route is shown in Figure 23 (Alternate
Construction Truck Route)in the TIS.
The advantage of the proposed Alternate Truck Route Plan is that it halves the number of truck trips on Cox
Neck Road where there are more residential homes fronting on the road.The departing trucks will use Bergen
Avenue which has less than half the number of homes fronting the road.
A data collection effort was undertaken in August of 2022 to evaluate the Alternate Route segment. Seven-day
Automated Traffic Count was collected on Bergen Avenue. Intersection turning movement counts were
collected at Bergen Avenue at Sound Avenue and Bergen Avenue at Cox Neck Road. Pedestrian observations
were also made at the intersection of Bergen Avenue at Coopers Road.The additional data collected to evaluate
the Bergen Avenue routing is included in the Supplemental Data Appendix of the TIS.Figure 24(Site Generated
Truck Traffic Volumes at Phase 1-Excavation-Alternative)in the TIS illustrates the number of site-generated
trucks utilizing the alternative truck route and Figure 25 (2024 Build Spring Traffic Volumes at Phase 1 -
Excavation-Alternative Truck Route) in the TIS illustrates the composite 2024 traffic volumes with the site
generated truck traffic utilizing the alternate truck route.
Utilizing the capacity analysis methodology, the following three intersections would be directly impacted by
the Alternate Truck Route during excavation:
• Sound Avenue/County Road 48 at Cox Neck Road
• Sound Avenue at Bergen Avenue
• Bergen Avenue at Cox Neck Road
The results indicate that the trucks generated by the project can be accommodated at each of these intersection
with good levels of service.The level of service at each of the study intersections under the Build Alternative
remained at Level of Service A or B under all conditions and movement delays either were not affected at all or
had minor changes of less than a second.
Regarding pedestrian and bicycle impacts, during the 12-hour weekday observation period, 6 pedestrians
walked along Bergen Avenue and 4 pedestrians crossed Bergen Avenue. During the same 12-hour observation
period,8 bicycles were noted riding along Bergen Avenue.During a 12-hour period on a Saturday,9 pedestrians
were observed walking along Bergen Avenue and two crossed Bergen Avenue. Ten bicycles were observed
riding along Bergen Avenue during a 12-hour period on a Saturday. Based on the observations, bicycle and
pedestrian activity along Bergen Avenue is low during the weekday period when trucks may use the road. It is
also low on Saturdays when project related trucks will not be using the road.
Truck turning movement studies were also performed along the alternative route utilizing Bergen Avenue.
Those studies indicated that trucks would need assistance from flaggers in making the right turn from Cox Neck
338
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Road to Bergen Avenue,and at the 90-degree curve in Bergen Avenue north of Sound Avenue and in making
the right turn from Bergen Avenue onto Sound Avenue.
The acoustic impacts of the Alternative Routing Plan were also evaluated. As sources on Bergen Avenue were
not considered in the initial Acoustic Report, additional acoustic data was collected along Bergen Avenue to
quantify the existing ambient sound levels on August 2, 2022. Figure 30 in the Acoustic Report shows the
location of the readings collected(noted as Location 5)and Table 19 in the Acoustic Report provides the results
of the acoustic readings collected.The afternoon L90 was used in the analysis as the ambient sound level. Also,
to evaluate traffic,the additional traffic data collection was used(and included in Section 3.6.11 of the Acoustic
Report). For additional trips,the additional trip generation data for Excavation Phases 1 and 2 were used as
they represent the highest truck traffic during construction.
Using the additional trip generation data,the TNM analyses in SoundPlan were completed for R15 - R18 for
receivers on Cox Neck Road,and then for new receivers R19-R24 for new receivers which were inserted into
the model for Bergen Avenue.Using the results,the sound levels at R15-R18 for the alternate truck plan were
compared to the sound levels during Excavation Phase 1 to show the reduction in sound level.Table 22 of the
Acoustic Report shows the existing and predicted excavation phase peak hour Leq sound levels,while Table 23
of the Acoustic Report shows the existing and predicted excavation phase 8-hour Leq sound levels at each
location.Figures 31 and 32 of the Acoustic Report show the graphic representations of the existing peak hour
and 8-hour sound levels, respectively. Figures 33 and 34 of the Acoustic Report show the graphic
representation of the excavation phase peak hour and 8-hour Leq sound levels, respectively. As seen in the
figures,there is a 1-2 dBA reduction in both peak hour and 8-hour sound levels, showing an improvement in
sound levels at the locations along Cox Neck Road.Although there would now be an impact to receivers along
Bergen Avenue, all predicted sound levels are lower than the NYSDOTs suggested criteria of 67 dBA at the
receivers considered in the alternate plan.
339
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
6.0 REFERENCES
Association of Marina Industries.Calculate Your Marina's Impact.Retrieved from:
htWsV4marinaassociation.orZ/meic
AutoCAD Civil 3D.AutoCAD Civil 3D 2013 Help.Retrieved from:
GUID-C3CO77AC-8316-
413E2-A1F5-8914F13C865A.htm tonicNumber=CLJGd30e323122
Cornell Cooperative Extension Marine Program.Long Island Shellfish Restoration Project.Available at
hnL3,s-.4LIi,,3hellfishre,storationpro'ect.org/
Cornell Cooperative Extension of Suffolk County.Seagrass.LL
Accessible at:htt /www.sea rassli.orgfconse1 11-11 eeI-ras town southold.html.
Cornell Cooperative Extension Marine Program and New York State Department of State.Long Island
Shellfish Restoration Project.Retrieved from:Litt J/li--,hellfishrestoratioiiproject.or
Diesel Technology Forum. Tier 4 Standards.Retrieved from:http5:/lwww.dieselforum.org/policy/tier-4-
standards
Horton,R.,D.Bader,C.Rosenzweig,A.DeGaetano,and W.Solecki.2014(a).Climate Change in New York State:
Updating the 2011 ClimAID Climate Risk Information.New York State Energy Research and
Development Authority(NYSERDA),Albany,New York. Available at
http. Jwww.n erda.n .�ov c�lhnqid.
I------ys�
Long Island Nitrogen Action Plan(LINAP). Retrieved from:httpsj. www.dec.n . ov lands 103654.html
J
Long Island Regional Planning Board. 1992. The Long Island Comprehensive Special Groundwater Protection
Area Plan.
Long Island Regional Planning Board. 1978.Long Island Comprehensive Waste Treatment Management Plan
(L.I.208 Study),Hauppauge,New York.
Long Island Regional Planning Board. The Long Island Segment of the Nationwide Urban Runoff Program.
1982.Retrieved from:
OS ment, Z , 0 1, 1 20Nationwide, ii 2M',unoff'O/(2OPr
19-03-26-113342-000
Long Island Sound Study.Heavy Precipitation.Retrieved from:bitps.1/lon islandsoundstudy.netleco-sv-stem-
Z-------------- --- -----
Larget-indicators/heavy-precipitation
Mattituck Inlet,Long Island Sound,NY Tides. Marine Forecast:Long Island Sound East of Haven.
Lm---------t-e-r-n-e-tAide, -ny:t�Retrieved from: i marineweath /ti mattituck-inlet-lon--island-soun,]- ides
340
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
National Archives and Records Administration.Code of Federal Regulations:40 CFR Part 1039-Control of
Emissions From New and In-Use Nonroad Compression-Ignition Engines.Retrieved from:
039
National Weather Service NOAA.Islip,NY Historical Data.
Retrieved from: hnpV. �www.weatherZ. j4 oy okx Ish�pffistori cal.
t------------ -- 1 - -
National Oceanic and Atmospheric Administration National Centers for Environmental Information.Climate
at a Glance:City Time Series.Retrieved from:https://www.ncdc.noaa.gov/cag/
Newsday.DEC Shuts Shellfish Harvesting in Southold.April 5,2015.
Retrieved from:lzttp www.newsda /Ion -islan /suffol dec-shtits-shellfish-hai'vestilipl-ill-
southold-1.3644504
New York State Department of Energy Research&Development Authority.About NYSERDA.
Retrieved from:https://www.nyserda.ny.gov/About
New York State Department of Energy Research&Development Authority.About NYSERDA.Retrieved from:
Littps: www.n se�rdan .�ovabo�ut
New York State Department of Energy Research&Development Authority.Responding to Climate Change in
New York State(ClimAID).Retrieved from:
ch-and-Develonment-Technical-
Ru_ort e orts Res onse-to-Climate-
jQh�age-i n-�New-�Yo rk
New York State Department of Environmental Conservation.2018 Section 303(d)List of Impaired Waters
Requiring a TMDL10ther Strategy.June 2020.Retrieved from:
New York Department of Environmental Conservation.Certification Categories and Credit Requirements.
Retrieved from:hnps. 1www.dec.ny.Zoy/:Rermits/41072.html.
--
New York State Department of Environmental Conservation.Community Risk and Resiliency Act:Guidance for
Consideration of Flood Risk in Smart Growth Public Infrastructure Assessment.August 2020.Retrieved
from:https://www.dec.ny.gov/docs/administration-pdf/crrasmartgrowth.pdf
New York State Department of Environmental Conservation.Community Risk and Resiliency Act(CRRA)
Provisions.Retrieved from:hnps.lLwww.dec.iiy.gov/energy/104113.hti-nl
New York State Department of Environmental Conservation.Environmental Resource Mapper.Retrieved from:
bnRsl/�www�.dec.n .�ovan�irnajs 3�8801.h�tmj.
New York State Department of Environmental Conservation.Floodplain Construction Requirements in NYS.
Retrieved from: https;�/wwww�.dec.n .�ov/la�nds 40�576.ht�ml
New York State Department of Environmental Conservation.New York State Flood Risk Management Guidance
for Implementation of the Community Risk and Resiliency Act.August 2020.Retrieved from:
341
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
New York State Department of Environmental Conservation.New York State Standards and Specifications for
Erosion and Sediment Control,Blue Book.November 2016.
New York State Department of Environmental Conservation.New York State Stormwater Management Design
Manual.January 2015.
New York State Department of Environmental Conservation.NYSDEC Statewide Seagrass Map.
Accessible at:
http / .arc is.com/home web ap/vieer.ht 1? ebaaa=12ba9d56b75d497a84a36f94180b
b5ef.Accessed March 18,2021.
New York State Department of Environmental Conservation.Shellfish Closures.
Retrieved from:
hops:f/ wwdec.nyov/outdoar/103483.html#kMattituck Inlet and Mattituck Creek7.Accessed
December 2020.
New York State Department of Environmental Conservation.SPDES General Permit for stormwater
discharges form construction activity.Retrieved from:
htWsj. w .dec.nv.aov docs/water pdf/constg 020001.pdf
New York State Department of Environmental Conservation. The SEQR Handbook Fourth Edition,2020.
Retrieved from:ht s°//w w.dec,n e ov dacs�lperinits ei operations pdf/segrhandbaak.pdf.
New York State Department of Environmental Conservation and New York State Department of State.Using
Natural Measures to Reduce the Risk of Flooding and Erosion:Guidance from New York State's
Department of Environmental Conservation and Department of State.August 2020.Retrieved from:
hops://www.dec.ny av dacslad inistratian a�df/crranatural easures ndc.pdf
New York State Department of Environmental Conservation. Waterway Access Sites on Long Island.
Retrieved from:htt s: / w.dec.n�r. av outdaar/7780.htm1
New York State Department of State.Coastal Fish and Wildlife Habitat Assessment Form.Retrieved from:
hops://wedasen av/mod/pro g°a s/consistency Habitats/Lon Islandf Mattituck Inlet Wetland
-Pdf
New York State Department of State. Town of Southold Local Waterfront Revitalization Program.Retrieved
from:htt s://docs.dos.n ov o d-
lrp LWRP/Southold T/Amendmentl Final/SouthaldA end, df
Peconic Green Growth.Long Island Sound,North Fork Study. Retrieved from:
htt ://.peconicgreen�zoth.org/ asteatez°/1i-sound-nf-study/.
Rosenzweig,C.,W.Solecki,A.DeGaetano,M.O'Grady,S.Hassol,P.Grabhorn(Eds.).2011.Responding to
Climate Change in New York State:The ClimAID Integrated Assessment for Effective Climate Change
Adaptation.Technical Report.New York State Energy Research and Development Authority
(NYSERDA),Albany,New York.
Retrieved from:htt ://www.n, serda.ny.gov/climaid.
342
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
Suffolk County Department of Economic Development and Planning.Framework for the Future-Suffolk
County Comprehensive Master Plan 2035.
Retrieved from:
Plans 202035/ADASuffolkCounty MasterPlanFINAL 0728201
Suffolk County Department of Health Services.Suffolk County Comprehensive Water Resources Management
Plan.March 2015.
/D;V,!
Retrieved from: vv� ww.suffolk���! 1 i i 1T
: 1
Health-Servic LEnvironmental-
Resources-Management-Plan
Suffolk County Department of Health Services.Suffolk County Sanitary Code.
Suffolk County Department of Health Services.Standards For Approval Of Plans And Construction For Sewage
Disposal Systems For Other Than Single-Family Residences,Revised July 21,2020.
Retrieved from:
Suffolk County Water Authority.2020 Drinking Water Quality Report.
Retrieved from:L- i LsI091480.instantur AW R2020 52620 FINAL.
Ux�l _
Suffolk County Water and Land Invasive Advisory Board. Suffolk County Do Not Sell/Transfer List of Invasive
Species. Adopted 2011.
Retrieved from: "; AS : Db S tSC D Do not sell ji-st.ptif
_ ---------- —
The Suffolk Times.DEC Declares Mattituck Creek OKforShellfishing. Published January 24,2014.Retrieved
from: ares-mattituck-creek-ok-for-
slhiellfishiag�
Town of Southold.Southold Town Pump Out Boat Program.Retrieved from:
-Matters---Pumn-out-
Boat?bidld=
Town of Southold Comprehensive Plan.Appendix 10 Pages 3-4.
Id-Town-Compm.hensive.-
Plan-Appendices-Vol-2
U.S Army Corps of Engineers New York District.Fact Sheet-Mattituck Harbor,NY March 5,2021.
Retrieved from:httDs:jjwww.nqn.usqce.arrny.mi]/TxA-,iia/]7act--Slieet-s�Fact-Sheet-Article-
View/Article 148 7466 Ifact-sheet-mattituck-harbor-ny/.
U.S.Army Corps of Engineers.Dredged Material Management Plan and Programmatic Environmental Impact
Statement Long Island Sound Connecticut,New York,Rhode Island.
Retrieved from:httV5-.�www.usqce..qrm y.mil LISDMMP LIS-I)MMP-Main-
Accessed February 18,2021.
United States Department of Agriculture,Natural Resources Conservation Service.Web Soil Survey Soil
Survey. Retrieved from: tm
343
Draft Environmental Impact Statement Rev.November 2022
Strong's Yacht Center-Proposed Boat Storage Buildings
5 780 West Mill Road,Mattituck,Town of Southold,Suffolk County,NY
United States Department of Energy Office of Energy Efficien &Renewable Energy:Ene v Saver:Radiant
Heating.Retrieved from: /www.ene /radiant-heating
United States Geological Survey.Freshwater-Saltwater Interactions Along the Atlantic Coast-A Regional
Assessment of the Ground-Water Resources Program(2017).
Accessed March 1,2021.
United States Geological Survey,Hydrogeology and Hydrologic Conditions of the Northern Atlantic
Coastal Plain Aquifer System From Long Island, New York to North Carolina,Scientific
Investigations Report 2013-5133,U.S.Geological Survey,Reston,Virginia, 2013.
United States Geological Survey.Long Island Precipitation and Recharge.Retrieved from:
hts:/ w .usg goy centers n -water science long-island-precipitation-and-recharge?qt-
science center ohiects=Q#qtt-:sccjieRngce center objects
University of Florida.Online Resource Guide for Florida Shellfish Aquaculture. Retrieved from:
httffs.�_shelff�ishjfa_s�.ufledu�envjro�nment�al-bene�fits
Warner,John W.Jr.,et al.Soil Survey of Suffolk County,New York.United States Department of Agriculture
and Cornell University Agricultural Experiment Station. 1975.
World Meteorological Organization.Commission for Climatology.2019 Retrieved from:
344