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Home My WebLink About1000-93.-2-2.4 OFFICE LOCATION: O��QF OI MAILING ADDRESS: Town Hall Annex P.O. Box 1179 54375 State Route 25 Southold, NY 11971 (cor. Main Rd. &Youngs Ave.) G Telephone: 631 765-1938 Southold, NY 11971 Fax: 631 765-3136 olycoU ,� LOCAL WATERFRONT REVITALIZATION PROGRAM TOWN OF SOUTHOLD MEMORANDUM To: Michael Domino, President Town of Southold Board of Trustees From: Mark Terry, Assistant Town Planning Director LWRP Coordinator Date: October 15, 2018 Re: Local Waterfront Coastal Consistency Review for SHELLFISH HATCHERY SEAWATER LINE INSTALLATION SCTM# 1000-93-2-2.4 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 action is CONSISTENT with the Policy Standards and therefore is CONSISTENT with the LWRP. 1. Verify that the in water section of the line will not be a hazard to beachgoers. Pursuant to Chapter 268, the Board of Trustees shall consider this recommendation in preparing its written determination regarding the consistency of the proposed action. Cc: Damon Hagan, Assistant Town Attorney Town of Southold OCT e 5 2018 LWRP CONSISTENCY ASSESSMENT FORM Southold Town A. INSTRUCTIONS Planning Board 1. 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 Lazard Area. 2. 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 Waterfront 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). 3. 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, listing, both supporting and non- supporting 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's website (southoldtown.northfork.net), the Board of Trustees Office, the Planning Department, all local libraries and the Town Clerk's office. B. DESCRIPTION OF SITE AND PROPOSED ACTION SCTM# 93 _ 2 - 2004 PROJECT NAME Shellfish Hatchery Seawater Line Installation The Application has been submitted to(check appropriate response): Town Board ❑ Planning Board❑ Building Dept. ❑ Board of Trustees ❑ 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) Financial assistance(e.g. grant,loan,subsidy; (c) Permit, approval, license,certification: Nature and extent of action: We propose to install four 4 inch seawater lines from the new shellfish hatchery to Peconic Bay using a combination of trenching and jetting. The total run of pipe is 500 feet. Cornell Cooperative Extension of Suffolk County Seawater Line for New Shellfish Hatchery at Cedar Beach County Park, Southold, New York Project Background In support of the Long Island Shellfish Restoration Project (LISRP), Cornell Cooperative Extension of Suffolk County (CCE) built a new, high-production shellfish hatchery at their facility located at Cedar Beach County Park, Southold,New York, to meet the production goals of the project. However,the production potential of the new hatchery was found to be significantly reduced due to the quality of the water that would be drawn from Cedar Beach Creek. CCE's facility is located at the back of Cedar Beach Creek (Figure 1), and the waters are suboptimal due to slow turnover, limited food (phytoplankton), and high summer water temperatures. Currently, a smaller, existing shellfish hatchery is in operation at the facility,but it has reached the limit of its production capabilities due to the water quality issues mentioned above. This project proposes to install a series of four, 4-inch, buried high density polyethylene (HDPE) lines from the new hatchery building and extending under the beach parking lot and beach, with the ends emerging from the sediment approximately 135 feet offshore of the mean low water (MLW) mark, ending approximately l Oft depth (MLW). The four HDPE will supply the shellfish hatchery with the calculated 550 gallons per minute (gpm) of seawater from Noyack Bay that will be required to supply the hatchery at the peak of its annual operation, that holds a lower summer temperature and is phytoplankton-rich. The LISRP is contracted to produce over 100 million hard clams and almost 50 million oysters to be placed into shellfish sanctuaries located throughout Long Island as a means of improving water quality and bolstering existing shellfish stocks. Scope of Work for Seawater Lines from New Hatchery to Noyack Bay (Southold) The seawater required for optimal production of the new shellfish hatchery will require four, 4- inch, HDPE lines to be-run from the hatchery to a location approximately 135 feet offshore of the MLW mark (Figure 2). The HDPE lines will be installed by creating a trench 3feet wide by approximately 3 00 feet long in which the lines will be buried. An excavator will be used to create the 3-4 foot deep trench in which the lines will be buried. The material excavated from the trench(2,700-3,600 cubic feet) will be placed along side of the trench and used to fill the trench as the lines are laid out. During the filling of the trench, efforts will be made to reconstruct the original grade/sediment surface angle to match the original condition of the trenched area and adjacent, undisturbed areas. The installation from MHW to the offshore location of the lines' intake ends will be completed by using a water jet system to bury the lines in the bottom of Noyack Bay. The approximate burial depth of the lines will be 3-4 feet. The water jetting process fluidizes the area of the bay bottom within the delineated area, allowing the HDPE lines to be "sunk" into the sediment. Over time,the sediment will re-compact providing anchorage for the lines and will be indistinguishable from adjacent, undisturbed bottom. The completion of the f HDPE line installation will result in approximately 10-15 feet of HDPE line extending out of the bay bottom into the water column at an estimated depth of 10 feet MLW. The seawater line ends will be secured in place by the installation of two helical (heli-coil) anchors that will be installed on either side of the emergent lines. The helical anchors are expected to be no more than 3 feet apart and will be connected by two galvanized steel cross pieces that will "sandwich"the four HDPE line ends, securing them in place. The helical anchors will be 10 feet long and will be driven into the bay bottom until 3 feet remains above the sediment surface. The ends of the HDPE lines will have custom-made, low-suction strainers attached to prevent the incidental attachment of materials (natural and man-made), or the accidental entrapment of marine animals. The strainer design will be based on similar strainer deployed by SUNY Stony Brook's Southampton Marine Station. Operation of the seawater intake lines will see two lines active at any given time. The remaining two lines will be left in reserve to be used if one of the active lines becomes compromised (e.g. fouling by marine organisms or physical damage). As mentioned above,the calculated peak usage flow rate to supply the main hatchery and the seasonal ancillary needs (oyster settlement tanks and outside upwellers) would be 550 gpm. Year-round operation of the shellfish hatchery will require 50-100 gpm, with the remaining demand being needed from May-July, annually. The seawater from the hatchery, oyster settlement tanks and upweller system will discharge into Cedar Beach Creek, as indicated in Figure 2. The water discharged from these systems will have passed through thousands of clams and oysters prior to entering Cedar Beach Creek, leave the water cleaner than its origination in Noyack Bay. Additionally, the water temperature of the discharge will be lower than the ambient summer water temperature in the creek, potentially mitigating thermal stress and dissolved oxygen issues resident marine fauna may experience seasonally. Location of action: 3690 Cedar Beach Road, Southold, NY 11971 Site acreage: 59 Present land use: Recreation/Education — Present zoning classification: R-80 2. 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: Cornell Cooperative Extension of Suffolk County (b) Mailing address: 423 Griffins Ave. Riverhead, NY 11901 (c) Telephone number: Area Code(6�l 852-8660 (d) Application number,if any:_ Not Applicable Will the action be directly undertaken,require funding, or approval by a state or federal agency? Yes 0 No❑ If yes,which state or federal agency? NYS DEC 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. 0 Yes ❑ No ❑ Not Applicable The shellfish hatchery is a water dependent use and the community will benefit by increased numbers of shellfish planted in town waters. 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 ❑ 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 Shellfish create habitat, providing nursery space for juvenile fishes 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 F—] No n 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. Not Applicable YJ No❑ The proposed project will not restrict public access. Tours will be offered to the public. 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 The shellfish hatchery is a water dependent activity on a previously-developed site. 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 III—Policies; Pages 57 through 62 for evaluation criteria. Yes ❑ No ❑ Not Applicable The hatchery will grow hundreds of millions of shellfish seed for planting in all of the above areas 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 Christopher Pickerell TITLE Marine Program DirectorDATE 10/1/18 MIM 5 6 p R _ fA,Yt)/ yyy a - u f G] N s1 P at P as c taAcc7 P \ cEOAR BPACN • RD IS% ` I1 0 CEDAR BEACH HARBOR N 21 /1 ]� " ]. tOINNOF SOUMOID _ / 1 ` b'OFFOIKCOUNiY 6 IV n]� �x R c�d.-s- —�— u (zq E _—�__ -- -- b=• COUNTY OF SUFFOLK C m' swmotn NOTICE O N RECTION NO M'-- _ �...•.. --.-- x�..--�.,-- Real Property Tax Semce Agency v 93 D^�'� ]] `ta]tHNslxu ur ——� ex.u. —_•-- ��••--•-- C]unry GNxIRMTxtt.NY ftttt t otm __ wn n Tq meixm�nvmHnromMmiK � tt] Y wt4 d � �• •�•'� xw rsrio• Wimxtomm4uWfulFutNifo ]cxenitte M m• �� w--•.•-- xmxwv mnewmn wixanvwrtt[xpoanssmxm M6 m t m m A oto of Osiwcl xo 1NM1 -- - P PROPERTY MAP mnwTxu]xnH[iwo�mt Figure 2. Proposed seawater line for Cornell Cooperative Extension's New Shellfish Hatchery at Cedar Beach Countv Park Southold E . i Proposed Seawater Line Route 500' Total Length W y 300' Long x 3' Wide x 3-4' Deop 00' Lon Excavated Trench Je 'I� ,r ' • , � ` ` + ^ � to �, A�G �`6 7 ' O Location: Cedar Beach County Park ' 3690 Cedar Beach Road ``I OCT - 2 2018 Southold, NY 11971 Date Prepared: 9/28/2018 . -• Bar Tr Prepared By: Stephen Schott, Cornell Cooperative Extension, lip 1 inch = 75 feet Habitat Restoration Specialist DigitalGlobe,Geo-y64EarltarGeographics,CNES/Airbus DS,USDA,USGS,AeroGRID, IGNfand the GIS User Comrn Wily Figure 3. Diagram of the method for securing the ends of the four seawater lines to the bottom of Noyack Bay Helical 'Anchors :: Confining bars secured 4-inch HDPE . � ,� ��=;� .. with U-Bolts or similar 3' above bottom Bay Bottom 10'-long helical anchor n ` 2Z�§18 ld Town �