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NEPA - Environmental Assessments

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Final Environmental Assessment Amending License to Modify Right Embankment of the Priest Rapids Dam (FERC Project No. 2114-303)
FERC Final EA DOE-RL FONSI (DOE/EA-2158) FERC Order Amending License
Final Environmental Assessment for the Proposed Laser Interferometer Gravitational-Wave Observatory (LIGO) STEM Exploration Center at Hanford (DOE/EA-2148)
Final National Science Foundation EA and FONSI. DOE-RL FONSI
Environmental Assessment (EA) for Avista Utilities Rebuild of 12.6-miles of the Benton-Othello Switching Station 115 kV Electrical Transmission Line on the Hanford Site (DOE/EA-2038)
Final EA (PDF) FONSI (PDF) Public Comment Period - May 29 through June 11, 2019 Draft Environmental Assessment Fact Sheet Biological Evaluation for the Rebuild of the Avista Utilities' Benton-Othello 115 kV Electrical Transmission Line on the Hanford Site, Washington, September 2017 Biological Opinion for the Avista Utilities' Benton-Othello 115 kV Electrical Transmission Line on the Hanford Site, Washington, February 2018 Public Scoping Period - January 3 through January 16 2017 Public Scoping Fact Sheet (PDF)

Final Environmental Assessment for Rebuild of the North Loop 230-kV Electrical Transmission Line, Hanford Site, Washington (DOE/EA-2033)

Environmental Assessment (EA) for Energy Northwest WNP-1/4 Lease Renewal, Hanford Site, Washington

Environmental Assessment (EA) for Proposed Conveyance of Land at the Hanford Site (DOE/EA-1915)

Public Comment Period - July 13 to August 12, 2015

Public Scoping Period - September 19 to October 19, 2012

Environmental Assessment for Expansion of Borrow Areas on the Hanford Site (DOE/EA-1934)

Environmental Assessment for the Deactivation of N-Reactor (DOE/EA-0984)

Disposal of Decommissioned, Defueled Naval Reactor Plants from USS Enterprise (cvn 65)

Closure of Nonradioactive Dangerous Waste Landfill and Solid Waste Landfill (DOE/EA-1707)

Transfer of 1100 Area, Southern Rail Connection and Rolling Stock (DOE/EA-1260)
Environmental Assessment and Finding of No Significant Impact (August 1998) (PDF)

Combined Community Communications Facility and Infrastructure Cleanup on the Fitzner/Eberhardt Arid Lands Ecology Reserve (DOE/EA-1660F)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Shutdown of the Fast Flux Test Facility (DOE/EA-0993)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Offsite Thermal Treatment of Low-level Mixed Waste (DOE/EA-1135)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Management of Hanford Site Non-Defense Production Reactor Spent Nuclear Fuel (DOE/EA-1185)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Non-Thermal Treatment of Hanford Site Low-Level Mixed Waste (DOE/EA-1189)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Disposition of Surplus Hanford Site Uranium, Hanford Site, Richland Washington (DOE/EA-1319)
Environmental Assessment (PDF)
Risk Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

K Basins Sludge Storage at 221-T Building, Hanford Site, Richland, Washington (DOE/EA-1369)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)
Addendum 1 (PDF)

Transuranic Waste Retrieval from the 218-W-4B and 218-W-4C Low?Level Burial Grounds (DOE/EA-1405)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Expansion of the Volpentest Hazardous Materials Management and Emergency Response Training and Education Center, Hanford Site, Richland, WA (DOE/EA-1412)
Environmental Assessment (PDF)

Activation and Use of Three Former Borrow Sites in the 100-F, 100-H, and 100-N Areas (DOE/EA-1454)
Environmental Assessment (PDF)
Finding of No Significant Impact (FONSI) (PDF)

Accelerated Tank Closure Demonstration Project (DOE/EA-1462)
Environmental Assessment (PDF)

Deactivation of the Plutonium Finishing Plant (DOE/EA-1469)
DRAFT Environmental Assessment (PDF)

Last Updated 02/08/2022 1:02 PM