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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.  

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

EFSEC Document Set

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Columbia Generating Station -

Compliance

Complete original SCA with Attachments 1 - Environmental Monitoring and Attachment 2 - NPDES permit.

File Datesort descending Document Process Type
05/17/1972 SCA Amendment 1 with Attachment I Environmental Monitoring and Attachment II NPDES permit Compliance SCA (Site Certification Agreement)
05/17/1972 SCA Amnd1 Attachment I Compliance Report
02/21/2012 REMP Attachment I: Environmental Monitoring Compliance Documents
12/12/2013 EF-131590 Scopng Cmnts 3851-3900 Comment
08/18/2020 August 18, 2020 Monthly Council Meeting Minutes Compliance Transcript