Forge River Final Environmental Impact Statement
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Forge River Watershed Sewer Project Final Environmental Impact Statement Town of Brookhaven, Suffolk County, New York June 2018 Prepared pursuant to the New York State Environmental Quality Review Act SEQRA Lead Agency: NY Governor’s Office of Storm Recovery 25 Beaver Street, 5th Floor New York, NY 10004 This page intentionally left blank. Forge River Watershed Sewer Project TOWN OF BROOKHAVEN SUFFOLK COUNTY, NEW YORK FINAL ENVIRONMENTAL IMPACT STATEMENT Prepared by Governor’s Office of Storm Recovery (GOSR), an office of the New York State Housing Trust Fund Corporation Cooperating Agencies Federal Emergency Management Agency (FEMA) Suffolk County Department of Public Works Suffolk County Executive’s Office Federal, State and Local Involved and Interested Agencies U.S. Fish and Wildlife Service (USFWS) New York State Department of Environmental Conservation (NYSDEC) New York State Department of State (NYSDOS) New York State Department of Parks, Recreation, and Historic Preservation: State Historic Preservation Office (OPRHP / NYSHPO) New York State Division of Homeland Security & Emergency Services (NYSDHSES) Suffolk County Department of Health Services Town of Brookhaven United States Environmental Protection Agency (USEPA) The State of New York Governor’s Office of Storm Recovery (GOSR), operating under the auspices of the New York State Homes and Community Renewal’s Housing Trust Fund Corporation (HTFC), a public benefit corporation and subsidiary of the New York State Housing Finance Agency, 99 Washington Avenue, Suite 1224, Albany, New York 12260, is the Grantee of Community Development Disaster Recovery (CDBG-DR) funds appropriated by the Disaster Relief Appropriations Act, 2013 (Pub. L. 113-2, approved January 29, 2013) related to disaster relief, long-term recover, restoration of infrastructure and housing, and economic revitalization in the most impacts and distressed areas resulting from a major disaster declared pursuant to the Robert T. Stafford Disaster Relief and Emergency Assistance Act of 1974 (Stafford Act) in calendar years 2011, 2012, and 2013. GOSR implements the State’s obligations, as they pertain to CDBG-DR funding, under the State Environmental Quality Review Act (SEQRA) through duly authorized Certifying Officers, and is the lead agency responsible for the preparation of this Final Environmental Impact Statement (FEIS). On December 23, 2015, GOSR issued a Notice of Intent to Prepare an EIS (NOI EIS) pursuant to the State Environmental Quality Review Act (SEQRA) and Article 8 of the Environmental Conservation Law (New York State Environmental Conservation Law Sections 3-0301(1)(b), 3-0301(2)(m) and 8-0113). This EIS analyzes the potential impacts of the Proposed Action, which would establish a Mastic- Shirley Sewer District, and construct and operate a collection system connected to approximately 3,400 parcels. The system would include a combination of gravity sewers and low-pressure sewers, a conveyance system consisting of multiple pump stations and force mains, and an Advanced Wastewater Treatment Facility (AWTF) on the Brookhaven Calabro Airport site. Or, based on detailed design, an all low-pressure system could be implemented. The AWTF would use either a Membrane Bioreactor (MBR) or Sequencing Batch Reactor treatment process. The Proposed Action would result in combined average daily flows of approximately 1.4 million gallons per day, which, after treatment, would flow to subsurface leaching fields. Once the parcels are connected to the sewer district and the system is operating, existing OWTS would be removed or abandoned in accordance with Section 740-14 of the Suffolk County Code. The FEIS presents the alternatives that are being considered for implementing the Proposed Action and to examine and compare the social and environmental impacts of those alternatives. Public viewing of the DEIS is available online at: http://www.stormrecovery.ny.gov/environmental-docs and is also available in person at: • Governor’s Office of Storm Recovery: 25 Beaver Street, 5th Floor, New York, NY 10004. Further information may be requested by writing to the Governor’s Office of Storm Recovery at 25 Beaver Street, 5th Floor, New York, NY 10004 or by emailing [email protected] or by calling (212) 480-6265. This document is the Final EIS for the Proposed Action. This Final EIS incorporates, by references, the Draft EIS, dated May 2018. The above-referenced Draft EIS was the subject of a public hearing on May 22, 2018, and written comments on the Draft EIS were accepted for 30 days through June 1, 2018. The Written Correspondence and Public Hearing Transcript are provided in Appendices A and B, respectively, of this Final EIS. Questions or comments regarding this FEIS should be submitted via email, in the proper format, on or before July 9, 2018, at [email protected]. Written comments may also be submitted at the following address, or by mail, in the proper format, to be received on or before July 9, 2018: Governor’s Office of Storm Recovery: 25 Beaver Street, 5th Floor, New York, NY 10004. For further information concerning this document, contact: Matt Accardi, Certifying Officer New York State Governor’s Office of Storm Recovery 25 Beaver Street, 5th Floor New York, NY 10004 June 25, 2018_____ ___________________________________ Date of Acceptance Matt Accardi, Certifying Officer Governor’s Office of Storm Recovery Final Environmental Impact Statement Forge River Watershed Sewer Project, Town of Brookhaven, NY TABLE OF CONTENTS 1.0 INTRODUCTION.............................................................................................................. 1 1.1 Suffolk County Coastal Resiliency Initiative ........................................................... 1 1.2 Forge River Watershed Sewer Project Environmental Review Process .................. 2 2.0 PURPOSE AND NEED ..................................................................................................... 3 3.0 PROJECT LOCATION AND BACKGROUND ............................................................ 3 4.0 PROJECT DESCRIPTION .............................................................................................. 7 4.1 Combination of Gravity and Low-Pressure Sewers Collection System ................. 14 4.1.1 Collection .................................................................................................. 14 4.1.2 Conveyance ............................................................................................... 15 4.2 Exclusively Low-Pressure Sewers Collection System ........................................... 16 4.3 Advanced Wastewater Treatment Facility ............................................................. 16 4.3.1 Treatment Method ..................................................................................... 16 4.3.2 Facility Sizing ........................................................................................... 19 4.4 Implementation and Construction .......................................................................... 19 4.4.1 Sewer District............................................................................................ 19 4.4.2 Removal of Existing OWTS ..................................................................... 20 5.0 AFFECTED ENVIRONMENT AND POTENTIAL IMPACTS ................................ 21 5.1 Environmental Analysis Framework ...................................................................... 21 5.1.1 Resource Topics Carried forward for Detailed Analysis .......................... 22 5.1.2 Resource Topics Dismissed from Detailed Analysis ................................ 23 5.2 Topography and Soils ............................................................................................. 24 5.2.1 Methodology ............................................................................................. 24 5.2.2 Existing Conditions ................................................................................... 24 5.2.3 Potential Impacts and Proposed Mitigation .............................................. 30 5.3 Air Quality .............................................................................................................. 31 5.3.1 Methodology ............................................................................................. 31 5.3.2 Existing Conditions ................................................................................... 32 5.3.3 Potential Impacts and Proposed Mitigation .............................................. 33 5.4 Water Quality ......................................................................................................... 36 5.4.1 Methodology ............................................................................................. 36 5.4.2 Existing Conditions ................................................................................... 38 5.4.3 Potential Impacts and Proposed Mitigation .............................................. 47 5.5 Wetlands and Coastal Resources ............................................................................ 58 5.5.1 Methodology ............................................................................................. 58 5.5.2 Existing Conditions ................................................................................... 59 5.5.3 Potential Impacts and Proposed Mitigation .............................................. 61 i Final Environmental Impact Statement Forge River Watershed Sewer Project, Town of Brookhaven, NY