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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: 06/19/2025
Format: 06/19/2025
Document Groupsort descending Document Name File Date
Horse Heaven Wind Farm Updated ASC Appendix G - Shadow Flicker Analysis 06/15/2022
Horse Heaven Wind Farm The Yakama Nation Post-Hearing Brief - REDACTED 10/13/2023
Horse Heaven Wind Farm TCC’s Motion to Supplement Record (David Kobus Deposition) 08/04/2023
Horse Heaven Wind Farm March 30, 2021 Horse Heaven Land Use Hearing Transcript 03/30/2021
Horse Heaven Wind Farm Tri-Cities C.A.R.E.S Motion for Stay Pending SEPA with DecServ and Attachments 05/18/2023
Horse Heaven Wind Farm EXH-3012_R Don McIvor Multi-scale Resource Ferruginous Hawk 08/25/2023
Horse Heaven Wind Farm Counsel for the Environment - Notice for Party Participation 02/03/2023
Horse Heaven Wind Farm Appendix U - Consultation Documents 02/08/2021
Horse Heaven Wind Farm April 18, 2024 Horse Heaven Media Release - Council Votes to Recommend Approval With Conditions 04/18/2024
Horse Heaven Wind Farm EXH-5901_R - Richard Hagar Resume 08/23/2023
Horse Heaven Wind Farm Appendix 4.16-1 Technical Review of Horse Heaven Wind Farm, LLCs Economic Impact Analysis 12/16/2022
Horse Heaven Wind Farm Figure X0.1-2 Turbine Layout Option 2 01/22/2024
Horse Heaven Wind Farm Ch.8 Glossary - Final EIS 10/31/2023
Horse Heaven Wind Farm EXH-1027 Nine Canyon CUP Conditions (2006) 08/15/2023
Horse Heaven Wind Farm Washington Department of Transportation SEPA Scoping Comment 06/09/2021
Horse Heaven Wind Farm Applicant Objection to Tri-Cities C.A.R.E.S. (“TCC”) Formal Discovery Deposition Notice 05/30/2023
Horse Heaven Wind Farm EXH-5623_T Pre-filed testimony Ronne Fletcher 08/25/2023
Horse Heaven Wind Farm DEIS_1101-1200 02/13/2023
Horse Heaven Wind Farm Proof of Service 02/17/2021
Horse Heaven Wind Farm Yakama Nation's Response to Applicant's Petition for Reconsideration 06/03/2024

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