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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. 

The Carriger Solar Draft Order #899 is available for comment April 29th through May 1st 11:59 pm. You can see the Draft Order under the "Orders" header towards the bottom of the Carriger Solar webpage.  

There are two Special Meetings for the Carriger Solar project set for May 5th and May 6th. For more information, visit the Carriger Solar webpage

If you would like to submit a comment for either of the above visit our comment database: https://comments.efsec.wa.gov

Columbia Solar / SEPA / Documents

Columbia Solar - TUUSSO Energy - Docket:170823

Process Type Document Group(s) Document link File Date Document Set
SEPA Documents Mitigated Determination of Nonsignificance 02/27/2018 00081
Mitigated Determination of Nonsignificance, Notice of...
SEPA Documents MDNS Replacement Proof of Service 00082
Replacement document for MDNS Notice.
SEPA Documents Appendix A - SEPA Checklist 01/26/2018 00150
Email to Justin Allegro, Stephen Lewis, Lori White, and...
SEPA Documents MDNS Draft Measures 02/05/2018 00150
Email to Justin Allegro, Stephen Lewis, Lori White, and...
SEPA Documents Appendix A - SEPA Checklist 01/26/2018 00151
SEPA Consultation Email.
SEPA Documents Revised MDNS 04/17/2018 00171
Revised Mitigated Determination of Non-Significance for...