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The Draft Transmission Programmatic Environmental Impact Statement (EIS) was released on March 31, 2025. To review the document visit the Transmission PEIS webpage. 
There has been an extension to comment on the Draft PEIS until May 15th. If you would like to submit a comment visit our comment database: https://comments.efsec.wa.gov

EFSEC Document Search

Filter documents by Facility or Post Date.
Format: 06/18/2025
Format: 06/18/2025
Document Groupsort ascending Document Name File Date
Columbia Generating Station Resolution 318 Columbia Generating Station Site Certification Agreement Removal of Condition VI.A.1, Project Visitation 11/14/2006
Columbia Generating Station 002_Department of Natural Resources 03/23/2023
Columbia Generating Station Resolution 258 Amended - Standby Service Water System 08/10/1992
Columbia Generating Station Site Certification Agreement Amendment No. 1 09/25/1975
Columbia Generating Station Order 875 Letter - Recommendation to Close EFSEC Order 875 (Storm Drain Decommissioning Unit License) 10/20/2016
Columbia Generating Station Resolution 249 - Approval of the use of Sodium Bromide as Bio Fouling Agents with Conditions 05/14/1990
Columbia Generating Station Resolution 347 Authorizing Fish Collection for Radiological Environmental Monitoring Program, Subject to Conditions 06/16/2020
Columbia Generating Station Resolution 311 Columbia Generation Station - Emergency Preparedness Offsite Agency Support 01/11/2005
Columbia Generating Station NPDES Issuance Letter 05/30/2023
Columbia Generating Station Resolution 260 - Approval of Radiological Environmental Monitoring Program 01/13/1992
Columbia Generating Station Ecology Review of the 2017 Annual Raidological Environmental Operating Report for CGS 06/26/2018
Columbia Generating Station Order 875 Letter - Request to Close EFSEC Order 875 (Storm Drain Decommissioning Unit License) 10/03/2016
Columbia Generating Station Resolution 240 - Condition of G2 of the WNP-2 NPDES Permit 12/17/1987
Columbia Generating Station Resolution 300 CGS Sanitary Waste Treatment Facility 09/10/2001
Columbia Generating Station Resolution 310 Energy Northwest - Columbia Generating Station Termination of Non-Radiological Environmental Monitoring Program 04/19/2004
Columbia Generating Station NPDES Fact Sheet 05/30/2023
Columbia Generating Station Resolution 251 - NPDES Condition G35 Fulfilled 06/11/1990
Columbia Generating Station NPDES Approval Groundwater Mounding Study 07/26/2018
Columbia Generating Station Resolution 157 - WPPSS 1, 2, 3, 4 and 5 09/24/1979
Columbia Generating Station Resolution 230 (Rescinded by Council Motion 4/8/1991) 03/24/1986

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