Draft Environmental Impact Statement LUYSTER CREEK ENERGY PROJECT AT THE ASTORIA GENERATING STATION 18-01 20TH AVENUE QUEENS COUNTY ASTORIA, NEW YORK SUBMITTED TO New York State Department of Environmental Conservation, Division of Environmental Permits, 625 Broadway, 4th Floor Albany, New York 12233-1750 Contact Person: Stephen Tomasik (518) 486-9955 APPLICANT Astoria Generating Company, L.P. a USPowerGen Company 300 Atlantic Street, 5th Floor Stamford, Connecticut 06901-3522 PREPARED BY ESS Group, Inc. 401 Wampanoag Trail, Suite 400 East Providence, Rhode Island 02915 ESS Project No. A532-000.02 FILING DATE June 2011 DRAFT ENVIRONMENTAL IMPACT STATEMENT Luyster Creek Energy Project at the Astoria Generating Station 18-01 20th Avenue, Queens County, Astoria, New York Submitted To: New York State Department of Environmental Conservation, Division of Environmental Permits 625 Broadway, 4th Floor Albany, New York 12233-1750 Contact Person: Stephen Tomasik (518) 486-9955 Applicant: Astoria Generating Company, L.P. a USPowerGen Company 300 Atlantic Street, 5th Floor Stamford, Connecticut 06901-3522 Prepared By: ESS Group, Inc. 401 Wampanoag Trail, Suite 400 East Providence, Rhode Island 02915 ESS Project No. A532-000.02 Filing Date: June 2011 ESS Group, Inc. © 2011 TABLE OF CONTENTS SECTION PAGE EXECUTIVE SUMMARY 1.0 PROJECT PURPOSE AND PUBLIC NEED ........................................................................................ 1 2.0 DESCRIPTION OF PROPOSED PROJECT ....................................................................................... 5 2.1 The Applicant....................................................................................................................... 5 2.2 The Project .......................................................................................................................... 5 2.3 Project Location ................................................................................................................... 5 2.4 Existing AGS Description ....................................................................................................... 6 2.5 ConEd Complex.................................................................................................................... 6 2.6 Proposed LCEP Equipment Layout and Design......................................................................... 6 2.6.1 Project Components..................................................................................................... 7 2.6.1.1 SiemensCT and Heat Recovery Steam Generator ................................................... 7 2.6.1.2 Demineralized Water System................................................................................ 8 2.6.1.3 Fuel ................................................................................................................... 8 2.6.1.4 Exhaust Stack ..................................................................................................... 9 2.6.1.5 Cooling System ................................................................................................... 9 2.6.1.6 Emission Control Systems .................................................................................... 9 2.6.1.7 Utility lnterconnects............................................................................................. 9 Electric Interconnect........................................................................................... 9 Gas Interconnect.............................................................................................. 10 Water Supply Interconnect ................................................................................ 10 2.6.2 Materials Storage, Handling and Disposal..................................................................... 10 2.6.2.1 Water Storage .................................................................................................. 10 2.6.2.2 Chemical Storage and Handling .......................................................................... 11 2.6.2.3 Solid Waste Disposal ......................................................................................... 11 2.7 Construction Plan and Project Schedule ................................................................................ 11 2.8 Construction and Operation Overview................................................................................... 12 2.9 Reviews, Approvals, and Other Compliance Determinations.................................................... 13 2.9.1 State/City Environmental Review................................................................................. 13 2.9.2 New York State Department of Environmental Conservation .......................................... 14 2.9.3 New York City Department of Environmental Protection ................................................ 14 2.9.4 New York State Public Service Commission................................................................... 14 2.9.5 Anticipated Notifications, Actions, Permits and Approvals............................................... 15 2.10 Decommissioning.............................................................................................................. 16 3.0 EXISTING CONDITIONS, POTENTIAL IMPACTS, AND MITIGATION............................................... 18 3.1 Geology, Soils and Topography............................................................................................ 18 3.1.1 Existing Conditions..................................................................................................... 18 3.1.1.1 Topography and Soils ........................................................................................ 18 3.1.1.2 Surficial Geology ............................................................................................... 19 3.1.1.3 Geologic Setting and Bedrock Geology ................................................................ 19 3.1.1.4 Unusual Landforms or Geologic Formations ......................................................... 20 3.1.2 Potential Impacts....................................................................................................... 20 3.1.2.1 Short-term Impacts during Construction and Decommissioning ............................. 21 Cut and Fill Volumes ......................................................................................... 21 Excavation Techniques...................................................................................... 21 Foundations ..................................................................................................... 21 Soil Erosion and Sedimentation.......................................................................... 21 Copyright © ESS Group, Inc., 2011 j:\a532-000 astoria generating uspg\reports_submittals\deis\06-2011 final filing\deis dec_06-2011.doc TABLE OF CONTENTS (Continued) SECTION PAGE Management of Oil and Hazardous Materials....................................................... 22 Potential Soil Contamination .............................................................................. 22 3.1.2.2 Long-term Impacts During Operations and Maintenance....................................... 22 Management of Oil and Hazardous Materials....................................................... 22 Soil Erosion and Sediment Control...................................................................... 22 Procedures to Assess and Remediate Potential Soil Contamination ........................ 22 Seismic Considerations...................................................................................... 22 3.1.3 Proposed Mitigation ................................................................................................... 23 3.1.3.1 Soil Erosion and Sedimentation Control Plan ........................................................ 23 3.1.3.2 Management of Oil and Hazardous Materials ....................................................... 23 3.1.3.3 Procedures to Assess Potential Contamination and Undertake Remedial Actions...... 24 3.1.3.4 Seismic Considerations ...................................................................................... 26 3.1.4 References................................................................................................................26 3.2 Water Resources ................................................................................................................ 27 3.2.1 Existing Conditions..................................................................................................... 27 3.2.1.1 Surface Waters ................................................................................................. 27 3.2.1.2 New York City Coastal Zone ............................................................................... 27 3.2.1.3 Flood Area Designation...................................................................................... 27 3.2.1.4 Wetlands.......................................................................................................... 28 3.2.1.5 Groundwater .................................................................................................... 28 3.2.1.6 Water Supply and Wastewater Management........................................................ 29 3.2.2 Potential Impacts....................................................................................................... 29 3.2.2.1 Potential Construction Impacts ..........................................................................