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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

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. 

EFSEC Document Search

Filter documents by Facility or Post Date.
Format: 06/05/2025
Format: 06/05/2025
Document Group Document Name File Datesort ascending
Horse Heaven Wind Farm DEIS_1801-1900 02/13/2023
High Top and Ostrea Solar Project A002_SEPA_WDFW 02/13/2023
Horse Heaven Wind Farm DEIS_0801-0900 02/13/2023
Horse Heaven Wind Farm DEIS_1901-2000 02/13/2023
High Top and Ostrea Solar Project 0005 02/13/2023
High Top and Ostrea Solar Project A003_SEPA_WDFW 02/13/2023
Horse Heaven Wind Farm DEIS_0901-1000 02/13/2023
Horse Heaven Wind Farm DEIS_2001-2100 02/13/2023
High Top and Ostrea Solar Project 0001 02/13/2023
Horse Heaven Wind Farm DEIS_1001-1100 02/13/2023
Horse Heaven Wind Farm DEIS_2201-2300 02/13/2023
High Top and Ostrea Solar Project 0002 02/13/2023
Horse Heaven Wind Farm DEIS_0001-0100 02/13/2023
Horse Heaven Wind Farm DEIS_1101-1200 02/13/2023
Hop Hill Solar Yakama Nation 02/13/2023
Horse Heaven Wind Farm DEIS_2101-2200 02/13/2023
High Top and Ostrea Solar Project 0003 02/13/2023
Horse Heaven Wind Farm DEIS_0101-0200 02/13/2023
Horse Heaven Wind Farm DEIS_1201-1300 02/13/2023
Horse Heaven Wind Farm DEIS_2301-2400 02/13/2023

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