| Title (link to summary) | Number | Date (released or updated) |
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Final Environmental Impact Statement: Irrigation System Aquatic Weed Control
| 23-10-032 | August 2023 |
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Executive Summary: Eightmile Dam Rebuild & Restoration Project Draft Environmental Impact Statement
| 23-12-008 | April 2023 |
|
Eightmile Dam Rebuild & Restoration Project Draft Environmental Impact Statement
| 23-12-007 | April 2023 |
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关注：什么是 EIS？(Chinese)
| 23-04-012ZH | February 2023 |
|
Tiêu Điểm: EIS là gì? (Vietnamese)
| 23-04-012VI | February 2023 |
|
Magpokus sa: Ano ang isang EIS? (Tagalog)
| 23-04-012TL | February 2023 |
|
В центре внимания: Что такое EIS? (Russian)
| 23-04-012RU | February 2023 |
|
중점: EIS 는 무엇입니까? (Korean)
| 23-04-012KO | February 2023 |
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Enfoque en: ¿Que es una Declaración de Impacto Ambiental (EIS, por sus siglas en inglés)? (Spanish)
| 23-04-012ES | February 2023 |
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Focus on: What is an EIS?
| 23-04-012 | February 2023 |
|
Report to the Legislature- Average Time to Complete Final Environmental Impact Statement
| 22-06-012 | November 2022 |
|
Summary of Draft Environmental Impact Statement for the Proposed Chehalis River Basin Flood Damage Reduction Project
| 20-06-002 | February 2020 |
|
Hoja informativa del proyecto de control de inundaciones y manejo de sedimentos de Swift Creek
| 19-09-167ES | September 2019 |
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Final Environmental Impact Statement Short-term modification of the total dissolved gas criteria in the Snake and Columbia Rivers
| 19-10-019 | March 2019 |
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Draft Environmental Impact Statement Short-term modification of total dissolved gas criteria in the Snake and Columbia Rivers
| 19-10-013 | January 2019 |
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Final Environmental Impact Statement - Washington State's Changes to Water Quality Standards for Surface Waters of Washington State - WAC 173-201A
| 18-10-041 | January 2019 |
|
Supplemental Draft Environmental Impact Statement (SDEIS) for Kachess Drought Relief Pumping Plant (KDRPP) and Keechelus Reservoir-to-Kachess Reservoir Conveyance (KKC)
| 17-12-021 | April 2018 |
|
Supplemental Environmental Impact Statement for Control of Burrowing Shrimp using Imidacloprid on Commercial Oyster and Clam Beds in Willapa Bay and Grays Harbor, Washington - DRAFT
| 17-10-027 | September 2017 |
|
Chehalis Basin Strategy Final Programmatic Environmental Impact Statement (EIS)
| 17-06-019 | June 2017 |
|
Millennium Bulk Terminals – Longview Final Environmental Impact Statement (EIS)
| 17-06-013 | April 2017 |
|
Shell Anacortes Rail Unloading Facility Draft Environmental Impact Statement (EIS)
| 17-06-022 | October 2016 |
|
Chehalis Basin Strategy Draft Programmatic Environmental Impact Statement (EIS)
| 17-06-017 | September 2016 |
|
Westway Expansion Project Final Environmental Impact Statement (EIS)
| 17-06-012 | September 2016 |
|
Final EIS - Dungeness River Agricultural Water Users Association Comprehensive Water Conservation Plan
| 04-06-010 | July 2016 |
|
Draft Environmental Impact Statement - Revised: Washington State’s Proposed Changes to Water Quality Standards for Surface Waters of the State of Washington – WAC 173-201A
| 16-10-004 | January 2016 |
|
Final Environmental Impact Statement Control of Burrowing shrimp using Imidacloprid on Commercial oyster and Clam Beds in Willapa Bay and Grays Harbor, Washington
| 15-10-013 | April 2015 |
|
Kachess Drought Relief Pumping Plant and Keechelus Reservoir-to-Kachess Reservoir Conveyance Draft Environmental Impact Statement
| 15-12-001 | January 2015 |
|
Environmental Impact Statement - Washington State's Proposed Changes to Water Quality Standards for Surface Waters of the State of Washington - WAC 173-201A--DRAFT
| 14-10-060 | January 2015 |
|
Final Environmental Impact Statement: Management of Zostera Japonica on Commercial Clam Beds in Willapa Bay, Washington
| 14-10-050 | March 2014 |
|
Sediment Management Standards - Environmental Impact Statement
| 12-09-054 | February 2013 |
|
Odessa Subarea Special Study Final Environmental Impact Statement
| 12-12-014 | April 2012 |
|
Yakima River Basin Integrated Water Resource Management Plan Final Programmatic Environmental Impact Statement
| 12-12-002 | March 2012 |
|
Environmental Impact Statement for Penoxsulam, Imazamox, Bispyribac-sodium, Flumioxazin, & Carfentrazone-ethyl: Addendum to the Final Supplemental Environmental Impact Statement for Freshwater Aquatic Plant Management
| 00-10-040Addendum1 | January 2012 |
|
Draft Programmatic Environmental Impact Statement for the Yakima River Basin Integrated Water Resource Management Plan.
| 11-12-024 | November 2011 |
|
Cle Elum Dam Fish Passage Facilities and Fish Reintroduction Project FEIS
| 11-12-030 | April 2011 |
|
Non-Project Environmental Impact Statement Aquatic Invasive Species Control
| 10-10-010 | April 2011 |
|
Condit Dam Removal, Final Second Supplemental Environmental Impact Statement
| 09-12-017 | January 2010 |
|
Addendum to the Final Supplemental Environmental Impact Statement for the Lake Roosevelt Incremental Storage Releases Program
| 09-12-012 | December 2009 |
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Final EIS, Yakima River Basin Integrated Water Resource Management Alternative
| 09-12-009 | June 2009 |
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Condit Dam Removal, Draft Second Supplemental Environmental Impact Statement
| 09-12-008 | June 2009 |
|
Final Supplemental Environmental Statement for the Lake Roosevelt Incremental Storage Releases Program
| 08-11-034 | August 2008 |
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Draft Supplemental Environmental Impact Statement for the Lake Roosevelt Incremental Storage Releases Program
| 08-11-012 | May 2008 |
|
Final Programmatic Environmental Impact Statement For The Columbia River Water Management Program (Volume II)
| 07-11-009-v2 | February 2007 |
|
Final Programmatic Environmental Impact Statement For The Columbia River Water Management Program (Volume I)
| 07-11-009-v1 | February 2007 |
|
Small Business Economic Impact Statement For Proposed Amendments to Chapter 173-308 WAC, Biosolids Management
| 07-07-005 | January 2007 |
|
Obsolete -Draft Programmatic Environmental Impact Statement For The Columbia River Water Management Program
| 06-11-030 | October 2006 |
|
Draft Environmental Impact Statement:Columbia River Mainstem Water Management Program
| 04-11-031 | December 2004 |
|
Supplemental Environmental Impact Statement Assessments of Aquatic Herbicides: Volume 5: Triclopyr
| 04-10-015 | June 2004 |
|
Environmental Impact Statement (EIS) for Permitted Use of Triclopyr
| 04-10-018 | May 2004 |
|
Final EIS - Dungeness River Agricultural Water Users Association Comprehensive Water Conservation Plan
| 03-11-016 | November 2003 |
|
Final Supplemental Environmental Impact Statement for Diquat Dibromide
| 02-10-052 | November 2002 |
|
Herbicide Risk Assessment for the Aquatic Plant Management Final Supplemental Environmental Impact Statement -- Appendix D -- Volume 2: Endothall
| 00-10-044 | February 2001 |
|
Herbicide Risk Assessment for the Aquatic Plant Management Final Supplemental Environmental Impact Statement -- Appendix C -- Volume 3: 2,4-D
| 00-10-043 | February 2001 |
|
Final Supplemental Environmental Impact Statement for Aquatic Plant Management -- Appendix B -- State Water Pollution Control Laws and Washington’s Administrative Codes Governing the Use of Aquatic Pesticides
| 00-10-042 | February 2001 |
|
Final Supplemental Environmental Impact Statement for Aquatic Plant Management -- Appendix A -- Ecology’s Water Quality Modification Process, Sample Application Form and Permit
| 00-10-041 | February 2001 |
|
Final Supplemental Environmental Impact Statement For Freshwater Aquatic Plant Management
| 00-10-040 | February 2001 |
|
Model Toxics Control Act Proposed Rule Amendments - Final Environmental Impact Statement 2001
| 00-09-055 | January 2001 |
|
Puget Sound Confined Disposal Site Study : Programmatic Environmental Impact Statement : Final Volume II of II
| 99-09-903 | October 1999 |
|
Puget Sound Confined Disposal Site Study : Programmatic Environmental Impact Statement : Draft
| 99-09-900 | February 1999 |
|
Small Business Economic Impact Statement -- 1995 NPDES and State General Permits for Storm Water Discharges Associated with Industrial Activities and Construction Activities
| 95-67 | September 1995 |
|
Final Environmental Impact Statement - The Use of Dispersants as a Management Tool for Controlling Oil Spills
| 93-34 | June 1993 |
|
Comments on the Amendments to the Model Toxics Control Act Cleanup Regulation Chapter 173-340 WAC and the Draft Environmental Impact
| 91-09-902 | February 1991 |
|
Final Environmental Impact Statement of Cleanup Standards: Amendments to the Model Toxics Control Act Cleanup Regulation, Chapter 173-340 WAC
| 91-09-919 | January 1991 |
|
Final Environmental Impact Statement:Cleanup Standards:Amendments to the Model Toxics Control Act Cleanup Regulation Chapter 173-340 WAC
| 91-09-900 | January 1991 |
|
Final Environmental Impact Statement For the Washington State Sediment Management Standards
| 90-50 | December 1990 |
|
Draft Environmental Impact Statement:Cleanup Standards:Technical Appendices
| 90-09-916 | July 1990 |
|
Draft Environmental Impact Statement : Cleanup Standards
| 90-09-915 | June 1990 |
|
Adoption of Cleanup Standards Under the Model Toxics Control Act
| 89-09-926 | December 1989 |
|
PSDDA Reports : Final Environmental Impact Statement Unconfined Open-Water Disposal for Dredged Material, Phase II (North and South Puget Sound) (Nepa/Sepa)
| 89-09-911 | September 1989 |
|
Final Environmental Impact Statement: Use of the Insecticide Sevin to Control Ghost and Mud Shrimp in Oyster Beds of Willapa Bay and Grays Harbor
| 85-10-201 | June 1985 |
|
Final Environmental Impact Statement (Including Program Overview)
| 79-11-005 | April 1979 |
|
Environmental Impact Statement - John Day/McNary Pools, Columbia River
| 77-11-004 | December 1977 |
|
Final Environmental Impact Statement - Colville River Basin Management Plan and Regulation
| 77-11-005 | August 1977 |
|
Final Environmental Impact Statement
| 76-11-008 | March 1976 |