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HomeMy WebLinkAbout1000-37.-1-23 OFFICE LOCATION: Town Hail Annex 54375 State Route 25 (cor. Main Rd. & Youngs Ave.) Southold, NY 11971 MAILING ADDRESS: P.O. Box 1179 Southold, NY 11971 Telephone: 631 765-1938 Fax: 631 765-3136 LOCAL WATERFRONT REVITALIZATION PROGRAM TOWN OF SOUTHOLD MEMORANDUM To: Jill Doherbj, President TOwn of Southold Board of Trustees From: Mark Terry, Principal Planner LWRP Coordinator Date: October 19, 2011 Re: Proposed Wetland Permit for GARDINERS BAY ESTATES HOMEOWNERS ASSOC. SCTM#1000-37-1-23 Group for the East End on behalf of GARDINERS BAY ESTATES HOMEOWNERS ASSOC. requests a Wetland Permit to modify the existing boat ramp to mitigate stormwater run-off by installing proper drainage and replacing impervious surface with pervious surface; restore habitat of a reclaimed portion of boat ramp to include naturally vegetated swales; and permanent placement of educational signage. Located: Dogwood Lane road end accessing Spring Pond, East Marion. SCTM#37-1-23 The proposed action has been reviewed to Chapter 268, Waterfront Consistency Review of the Town of Southold Town Code and the Local Waterfront Revitalization Program (LWRP) Policy Standards. Based upon the information provided on the LWRP Consistency Assessment Form submitted to this department, as well as the records available to me, it is my recommendation that the proposed action is CONSISTENT with the policy standards of LWRP and therefore CONSISTENT with the LWRP. Cc: Lori Hulse, Assistant Town Attorney Tow,n of So~ithold LWRP CONSISTENCY ASSESSMENT FORM A. INSTRUCTIONS All applicants for permits* including Town of Southold agencies, shall complete this CCAF for proposed actions that are subject to the Town of Southold Waterfront Consistency Review Law. This assessment is intended to supplement other information used by a Town of Southold agency in making a determination of consistency. *Except minor exempt actions including Building Permits and other ministerial permits not located within the Coastal Erosion Hazard Area. Before answering the questions in Section C, the preparer of this form should review the exempt minor action list, policies and explanations of each policy contained in the Town of Southold Local Water~ont Revitalization Program. A proposed action will be evaluated as to its significant beneficial and adverse effects upon the coastal area (which includes all of Southold Town). If any question in Section C on this form is answered "yes" or "no", then the proposed action will affect the achievement of the LWRP policy standards and conditions contained in the consistency review law. Thus~ each answer must be explained in detail~ listinfl both supporting and non- suvvortin~ facts. If an action cannot be certified as consistent with the LWRP policy standards and conditions, it shall not be undertaken. A copy of the LWRP is available in the following places: online at the Town of Southold website (southoldtown.northfork.net), the Board of Trustees ~nt,.all local libraries and the Town Clerk's office. ' ~ !'- B. DESCRIPTION OF SITE AND PROPOSED ACTION : SCTM# I~° - $7 - / The Application has been submitted to (check appropriate response): TownBoard ~--] Planning Board [~ Building Dept. ~'] BoardofTrustees 1. Category of Town of Southold agency action (check appropriate response): (a) Action undertaken directly by Town agency (e.g. capital construction, planning activity, agency regulation, land transaction) (b) (c) Financial assistance (e.g. grant, loan, subsidy) Permit, approval, license, certification: Nature and extent of action: Location of action: Site acreage: Present land use: Present zoning classification: If an application for the proposed action has been filed with the Town of Southold agency, the following information shall be provided: (a) Name of applicant: Co) Mailing address: f.o. q (c) Telephone number: Area Code (). (d) Application number, if any: Will the action be directly undertaken, require funding, or approval by a state or federal agency? Yes ~ No[--] If yes, which ~or federal agency?. /,P~5 0EC- C. Evaluate the project to the following policies by analyzing how the project will further support or not support the policies. Provide all proposed Best Management Practices that will further each policy. Incomplete answers will require that the form be returned for completion. DEVELOPED COAST POLICY Policy 1. Foster a pattern of development in the Town of Southold that enhances community character, preserves open space, makes efficient use of infrastructure, makes beneficial use of a coastal location, and minimizes adverse effects of development. See LWRP Section III - Policies; Page 2 for evaluation criteria. [--] Yes [~ No [] Not Applicable Attach additional sheets if necessary Policy 2. Protect and preserve historic and archaeological resources of the Town of Southold. See LWRP Section III - Policies Pages 3 through 6 for evaluation criteria Yes ~ No [~ Not Applicable / Attach additional sheets if necessary Policy 3. Enhance visual quality and protect scenic resources throughout the Town of Southold. See LWRP Section III - Policies Pages 6 through 7 for evaluation criteria F~ Yes ~ No ~] Not Applicable Attach additional sheets if necessary NATURAL COAST POLICIES Policy 4. Minimize loss of life, structures, and natural resources from flooding and erosion. See LWRP Section III - Policies Pages 8 through 16 for evaluation criteria Yes [] No ~Not Applicable Attach additional sheets if necessary Policy 5. Protect and improve water quality and supply in the Town of Southold. See LWRP Section III - Policies Pages 16 through 21 for evaluation criteria Yes [/~ No ~-] Not Applicable Attach additional sheets if necessary Policy 6. Protect and restore the quality and function of the Town of Southold ecosystems including Significant Coastal Fish and Wildlife Habitats and wetlands. See LWRP Section III - Policies; Pages 22 through 32 for evaluation criteria. Yes ' No Not Applicable Attach additional sheets if necessary Policy 7. Protect and improve air quality in the Town of Southold. See LWRP Section III - Policies Pages 32 through 34 for evaluation criteria. [] Yes [] No~ Not Applicable Attach additional sheets if necessary Policy 8. Minimize environmental degradation in Town of Southold from solid waste and hazardous substances and wastes. See LWRP Section III - Policies; Pages 34 through 38 for evaluation criteria. [] Yes [~ No ]~ Not Applicable /, PUBLIC COAST POLICIES Policy 9. Provide for public access to, and recreational use of, coastal waters, public lands, and public resources of the Town of Southold. See LWRP Section III - Policies; Pages 38 through 46 for evaluation criteria. [-~ Yes~ No ~Not Applicable Attach additional sheets if necessary WORKING COAST POLICIES Policy 10. Protect Southold's water-dependent uses and promote siting of new water-dependent uses in suitable locations. See LWRP Section III - Policies; Pages 47 through 56 for evaluation criteria. ~ Yes ~] No ~ Not Applicable /- Attach additional sheets if necessary Policy 11. Promote sustainable use of living marine resources in Long Island ~Sound, the Peconic Estuary and Town waters. See LWRP Section HI - Policies; Pages 57 through 62 for evaluation criteria. Yes ~J No ~ Not Applicable Attach additional sheets if necessary Policy 12. Protect agricultural lands in the Town of Southold. See LWRP Section III - Policies; Pages 62 through 65 for evaluation criteria. ~ Yes [] No~ Not Applicable Attach additional sheets if necessary Policy 13. Promote appropriate use and development of energy and mineral resources. See LWRP Section III - Policies; Pages 65 through 68 for evaluation criteria. [] Yes ~ No ~ Not Applicable PREPARED BY ~Je n,~ P~o,,-4,~age} TITLE (.~ro.~,,~, /q~,~ DATE LWRP Consistency Assessment Form Nature and extent of action: The Spring Pond Boat Ramp Stormwater and Habitat Improvement Project contains three main components; 1) the alteration of the existing Spring Pond Boat Ramp to mitigate stormwater runoff by installing proper drainage and replacing impervious surface with pervious surface, 2) the habitat restoration of a reclaimed portion of the existing boat ramp to include naturally vegetated swales, and 3) the permanent placement of educational signage at the proiect site. Please review attached drawing depicting project site details. The Gardiners Bay Estates Homeowners Association is working alongside Group for the East End to help secure grant funding for the above described stormwater improvement project. Developed Coast Policy Policy 1. Foster a pattern of development in the Town of Southold that enhances community character, preserves open space, makes efficient use o[ in]Yastrncture, makes beneficial use of coastal location, and minimizes adverse effects of development- The proposed project aims to protect and preserve "environmentally sensitive coastal resources" and enhances "stable residential areas," by modifying the existing boat ramp to improve poor drainage to prevent the harmful effects of stormwater runoff in Spring Pond and the greater Peconic Estuary system. The existing boat ramp has provided service to the Gardiners Bay Estates Homeowners Association for over 40 years and allows the 100. residences to appreciate and utilize the Town's coastal waters. Additionally, the alteration to the existing boat ramp makes efficient use of the existing infrastructure. Policy 3. Enhance visual quality and protect scenic resources throughout the Town of Southold. Particularly, the proposed project enhances goal E. to, "Preserve existing vegetation and establish new indi§enous veyetation to enhance scenic quality." The alteration of the existing boat ramp includes the reclamation of portions of the existing paved site to create vegetated swales inclusive of native plant species. These swales will present a more natural appearance than exists today while dually acting as natural drainage. Natural Coast Policies Policy S. Protect and improve water quality and supply in the Town of Southold The existing boat ramp accesses Spring Pond, a tributary to Gardiners Bay. In August 2009, the New York State Department of Environmental Conservation closed Spring Pond for shellfishing due to poor water quality. Currently, the existing boat ramp allows stormwater runoff to drain into Spring Pond, thus acting as a conduit for non-point source pollution. The proposed project will mitigate the existing factors by installing pervious material, creating vegetated swales and installing proper drainage. The proposed mitigation measures will tremendously help to reduce the volume of stormwater runoff from entering Spring Pond. This will help to improve the Pond's overall water quality. Particularly, the Policy Objectives outlined within 5.2, "Minimize non-point pollution of coastal waters and manage activities causing non-point pollution," are achieved by the proposed project. Policy 6. Protect and restore the quality and function of the Town of SouthoM ecosystems including Significant Coastal Fish and Wildlife Habitats and wetlands. According to the Atlantic/Long Island Sound Basin Waterbody Inventory - priority Waterbodies List Report, Gardiners Bay Waters are primarily impacted segments, while Orient Harbor is a designated Significant Coastal Fish and Wildlife Habitat. The proposed project will help to improve and protect surface and groundwater by preventing stormwater runoff from entering this system from the project site's immediate area. The proposed project exemplifies an extraordinary improvement over existing conditions. Additionally, the project will fulfill Section 6.3 and comply with the statutory and regulatory requirements of the Southold Town Trustees as well as with the regulatory requirements of the Tidal Wetlands AcC Working Coast Policies Policy 11. Promote sustainable use of living marine resources in Long Island Sound, the Peconic Estuary and Town waters. In August 2009, the New York State Department of Environmental Conservation closed Spring Pond for shellfishing due to unacceptable water quality. The proposed project will fulfill Section 11.2 by improving water quality with the hope of having Spring Pond re- opened for recreational shellfishing purposes. x Install Full Depth Asphalt Pavement Within Saw Cut Limits. Meet Existing Elevations. Typ. (See DetaDs) Contractor Shall Coordinate Markouts of All Utilities Prior To Commencing Construction. Saw Cut LEGEND G3,70 = Proposed Leaching Basin with Solid Cover = Proposed Leaching Basin with Grate = proposed Catch Basin = Proposed Grate Elevation = Flow Arrow Saw cut Pavement Full Depth AS Required to Install Drainage Structures. (Typ.) © Remove and Repair Re(;~rdng Walls As Necessary to Drainage S[Tactures (Ty~ Full Depth DA6× DA7 o~ G5.80 = Existing Spot Elevation Ridge Line Concrete Curb Border. For i~ Max. Pump Rate Calculation: Area of Pumped Water = 700 square feet Max. Depth of Water To Be Pumped = 4 feet Max. Volume of Water = 2,800 cubic feet (ct) Volume Conversion = 7.5 gallons / cl~ 2,800 cf = 21,000 gallons 3 hour working time ~2 tide cycle) 21,000 gallons / 3 hours = 7,000 gall / hr Rate of Pumping = 116.7 gall / rain (gpm) Utilize 3" Trash Pump With Filtered Suction End. Pump Only Surface Water. Discharge Pumped Surface Water Irda Spring Pond Wtih Hose Discharge Belaw Water Surface. 50'Lx20'W Steel Cof~rdam and Pum As Necessary fe Construct Boat Ramp. See Pump Rale ,~O_~,~Calculati°n F°r Pump InfoiTna§on. PHOTO NUMBER- NOV, 20, 2010 LAYOU Scale 1" = 20' DA5 G12.90 Catch Basin Basin G5.80 © Structures (Typ,) Drainage Design Criteria (2" Storm) 1. Paved areas areas- 100% runoff (Impervious) All pipes between drainage structures shall be 15" CPEP at 0% slope. Surface Runoff/Drainage Calculations G16.00 Drainage Area Runoff I Storage Vol. Storage Vol, Area Designation (S.F.) CoeBccient (C) (Ft) Req'd (C.F,) Provided (C.F.I Leaching Pool Configuration DA1 1,256 1.00 0,167 210 252 One (1) 8'0 pool @ 6' Eff. Depth DA2 3,532 1.00 0.167 590 612 One (1) 10'O pool @ 9' Eft. Depth DA3 982 1.00 0.167 164 168 One (1) 8'0 pool @ 4' Eft. Depth DA4 1,263 1.00 0.167 238 252 One (1) 8'O pool @ 6' Eft. Depth DA5 1,420 1.00 0.167 238 252 One (1) 8'0 pool @ 6' Eft. Depth DA6 1.115 %00 0.167 187 210 One (1) 8'0 pools @ 5' Eft. Depth DA7 898 1.00 0.167 150 168 One (1) 8'0 pools @ 4' Eft. Depth 8'0 Leaching Pools = 42 cf / vertical foot volume. 10'O Leaching Pools = 68 cf / vertical foot volume. D A3 Meet Existing s. Typ. {See Details) Install Unilock Turf stone or Nicolock -- Tudstone Pavers In Accordance With Manufacturers Standards. Inflll Blocks Wllh Pea Gravel High Marsh Boundary As Per To Mean High Water Line Install Colr Logs As Shown. (See Details) Native Sea Grass In Hatched Area. ×% Exist. Bottom TEST HOLE B-1 Scale NTS TEST HOLE B-2 Scale NTS FIN, GRADE SOLID CONC. SLAB COVER AS REQUIRED NOTE: RECTANGULAR HOLE TO BE SIZE OF CASTING -- INSTALL SOLID RINGS AS REQUIRED FOR PIPE CONNECTIONS 2'-0" GRAVEL COLLAR ]DODC)OOOD LEACHING POOL DETAIL Scale NTS NOTE: CONTRACTOR SHALL COMPLY WITH MANUFACTURERS STANDARDS FOR INSTALLATION. TYP. TURFSTONE BLOCK PAVER DETAIL Scale NTS 6'Nv x 12"h Concrete - Turfsthne Unit - Pea Gravel Ilnflll '~'~ Compacfed soil Note: Existing Gravel Boat Ramp Has No Dlscemable Dimensions alnd /er Thickness. Proposed Ramp Is Designed To Match Existing Topographical Elevations. -- FILTER FABRIC WRAP CASTING -- CURB INLET, FRAMEAND GRATE FLOCKHART FOUNDRY CO. TYPE 60283-683 OR CAMPBELL PLACE CHOIR LOGS PARALLEL ALLOW-I[ 1214.2 MIN.COVER DF OF FOR CA S# OR APPROVED EQUALTO THE WATER ~ LINE ~ DOUBLE STAKES OPTIONAL '~ ~ ~ ~E~cXc10~MENOBD COIR LOG DETAIL Scale NTS &BRIC WRAP CASTING -- CURB INLET, FRAME AND GRATE FIN. GRADE 6" Thick Bluestone Gravel Base PROPOS,ED BOAT RAMP - CROSS VIEW Scale 3/8" = 1','-0" CLEAN, COARSE GRAVEL- CATCH BASIN DETAIL Scale NTS Asphalt Pavement To Meet ~ 6"w x 12"h Concrefe Curb Radmster % Bedding .S.a. nd_ (1 +/-) El +5.7 Filter Cloth Under Bluestone '~""-- Compacted soil DRAINAGE LAYOUT PLAN NYSDEC TIDAL WETLANDS APPLICATION GARDINERS BAY ESTATES - DRAINAGE SCTM 1000-37.00-01,00-0023 ,.,u~,.~ GARDINERS BAY ESTATES HOMEOWNERS ASSOCIATION P.O. Box4 East Marion, NewYork 11939 631-765-6450 RAW / Engineers, P.C. 131 East Main Street, Bay Shore, New York 11706 Ph (631) 969-8535 Fax (631 ) 969-8518 As Shown MLW ......... SPI.O MEW LAR OCT. 2010