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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 Benton County Board of Commissioners SEPA Scoping Request Meeting 07/13/2021
Horse Heaven Wind Farm Tri-Cities C.A.R.E.S. Reply to Applicant’s Response to Motion to Stay Pending FEIS Issuance 05/31/2023
Horse Heaven Wind Farm Updated ASC Appendix L - Habitat Mitigation Plan 12/29/2022
Horse Heaven Wind Farm DEIS_1601-1700 02/13/2023
Horse Heaven Wind Farm Notice to Libraries 02/25/2021
Horse Heaven Wind Farm Appendix 4.11-1 Noise Modeling Assessment - Final EIS 10/31/2023
Horse Heaven Wind Farm EXH-1039_REVISED - CohnReznick, Property Value Impact Report: Site Specific Analysis 08/23/2023
Horse Heaven Wind Farm Refiled By Order As Public Comment: EXH-5611_T - Pre-Filed Testimony of TCC Witness Christopher S. Wright 09/07/2023
Horse Heaven Wind Farm Updated ASC Appendix N - Revegetation and Noxious Weed Control Plan 12/29/2022
Horse Heaven Wind Farm EXH-4011 Pre-Filed Direct Testimony Mark Nuetzmann 08/15/2023
Horse Heaven Wind Farm May 25, 2024 Governor's decision 05/23/2024
Horse Heaven Wind Farm Data Request 2 Response 2 Attachment Wildlife 09/10/2021
Horse Heaven Wind Farm Extension Request Submitted and Withdrawn 03/20/2023
Horse Heaven Wind Farm Public Comments 0051 - 0090 01/20/2024
Horse Heaven Wind Farm Preliminary Order on Intervention 03/09/2023
Horse Heaven Wind Farm Informational meeting comments #0101 - #0135 03/30/2021
Horse Heaven Wind Farm Appendix I - Wetland and Other Waters Delineation Report (Revised Aug 2021) 09/25/2023
Horse Heaven Wind Farm EXH-5100 - Pre-filed Testimony of TCC Witness Dean Apostol 08/24/2023
Horse Heaven Wind Farm Refiled By Order As Public Comment: EXH-5916_S - Supplemental Testimony of TCC Witness Loren Miller 09/07/2023
Horse Heaven Wind Farm Updated ASC Redline Appendix G - Shadow Flicker Analysis 12/01/2022

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