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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: 06/13/2025
Format: 06/13/2025
Document Groupsort descending Document Name File Date
Horse Heaven Wind Farm EXH-5623_T Pre-filed testimony Ronne Fletcher 08/25/2023
Horse Heaven Wind Farm Order Denying TCC Motion to Dismiss 08/07/2023
Horse Heaven Wind Farm Appendix 3.5-1 Habitat Subtype Photographs 12/16/2022
Horse Heaven Wind Farm Appendix C - SEPA Checklist 02/08/2021
Horse Heaven Wind Farm CTUIR Traditional Use Cover Letter 05/31/2021
Horse Heaven Wind Farm Letter from Yakama Nation regarding Protective Order 05/24/2023
Horse Heaven Wind Farm File Name Abbreviations and Acronyms 04/29/2024
Horse Heaven Wind Farm Notice - Final EIS 10/31/2023
Horse Heaven Wind Farm DEIS_0301-0400 02/13/2023
Horse Heaven Wind Farm EXH-1042 - American Wind Wildlife Institute (2020) 08/23/2023
Horse Heaven Wind Farm Figure X0.2-2 Turbine Layout Option 2 01/22/2024
Horse Heaven Wind Farm Refiled By Order As Public Comment: EXH-5616_T - Pre-Filed Testimony of TCC Witness Ron Nelson 09/07/2023
Horse Heaven Wind Farm EXH-1034_R Rebuttal Testimony Jessica Wadsworth 08/15/2023
Horse Heaven Wind Farm Chapter 9 - Distribution 12/16/2022
Horse Heaven Wind Farm Proof of Service 02/17/2021
Horse Heaven Wind Farm Combined SEPA Scoping Comments 00301 - 00361 07/10/2021
Horse Heaven Wind Farm Letter from Judge Torem RE Pending Order 06/02/2023
Horse Heaven Wind Farm Tri-Cities C.A.R.E.S. Response to Scout's Response to Tri-Cities C.A.R.E.S. 06/04/2024
Horse Heaven Wind Farm Appendix O - Acoustics Reports 09/25/2023
Horse Heaven Wind Farm DEIS_1901-2000 02/13/2023

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