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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 F - Land Owner List and Legal Descriptions 12/29/2022
Horse Heaven Wind Farm EXH-2010 Excerpt from Council Order No. 883 08/15/2023
Horse Heaven Wind Farm DEIS_2001-2100 02/13/2023
Horse Heaven Wind Farm Refiled By Order As Public Comment: EXH-5617_T - Pre-Filed Testimony of TCC Witness Ted Owens 09/07/2023
Horse Heaven Wind Farm Counsel for the Environment appoints Bill Sherman 03/01/2021
Horse Heaven Wind Farm Habitat Field Survey Data Request No.1 09/13/2021
Horse Heaven Wind Farm Tri-Cities C.A.R.E.S. Response to Applicant's Petition for Reconsideration 06/03/2024
Horse Heaven Wind Farm Yakama Nation Motion to Enforce Protective Order 02/23/2024
Horse Heaven Wind Farm Applicant - Notice of Unavailability 03/15/2023
Horse Heaven Wind Farm Applicant's Opposition to Motion to Compel/ Motion for Protective Order 06/28/2023
Horse Heaven Wind Farm Appendix P - Draft Emergency Response Plan (Revised) Redline 09/25/2023
Horse Heaven Wind Farm Updated ASC Redline Appendix D - Planning Determination 12/01/2022
Horse Heaven Wind Farm EXH-1010 - Hoen et al (2014) Article 08/18/2023
Horse Heaven Wind Farm Department of Defense (DoD) Agreement 11/10/2020
Horse Heaven Wind Farm 888 - Horse Heaven Order Denying Request to Call WDFW Cross Exam 09/15/2023
Horse Heaven Wind Farm General comments 0201 - 0250 04/02/2021
Horse Heaven Wind Farm Data Request 5 Table 11/05/2021
Horse Heaven Wind Farm Combined Comments 001 - 115 08/25/2024
Horse Heaven Wind Farm Hearing Day 6 - REDACTED 08/23/2023
Horse Heaven Wind Farm EXH-5904_X Cross examination of Greg Poulos 08/24/2023

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