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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: 06/19/2025
Format: 06/19/2025
Document Group Document Name File Datesort descending
Grays Harbor Energy Center 20100413_SCA_Amend_2 Unknown
Grays Harbor Energy Center 2020 Q1 CT2 Excess Emissions Unknown
Grays Harbor Energy Center 2020 Q1 CT1 Daily Unknown
Grays Harbor Energy Center 2020 Q2 CT2 Hourly Unknown
Chehalis Generation Facility 2021-09-01 Chehalis Power - DRAFT Chehalis Basis Rev 3 Unknown
Horse Heaven Wind Farm 20210325_HH_LegalAdProofOfPub Unknown
Columbia Solar Appendix J-3 Unknown
Columbia Solar Land Use Speaker #4 Unknown
Columbia Solar Tuusso Response to Cultural Assessment Unknown
Grays Harbor Energy Center 20190125_GH_2018_Q4_Cooling_Tower_Emissions Unknown
Grays Harbor Energy Center 2020 Q1 CT1 CEMS Downtime Unknown
Grays Harbor Energy Center Transmittal 350-Overton-Outfall Inspection-20200817 Unknown
Chehalis Generation Facility 1337168.xml Unknown
Columbia Solar Appendix G-4 Unknown
Columbia Solar Appendix K-1 Unknown
Columbia Solar 20210421_Urtica_Construction_Schedule_ Unknown
Grays Harbor Energy Center 2020 Q2 CT2 Monthly Unknown
Grays Harbor Energy Center 20211029_E.Pace_Report Unknown
Chehalis Generation Facility 2020.10.13 - Quarterly Air Emissions Reports DCS_DAHS Unknown
Columbia Solar Appendix G-5 Unknown

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