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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 Letter from TriCities C.A.R.E.S. regarding Issues from Pre-Hearing Conference #3 05/04/2023
Horse Heaven Wind Farm October 18, 2022 Extension Request Comment_004 10/18/2022
Horse Heaven Wind Farm Oral Ruling on Applicant's Motion to Strike TCC Response and Rebuttal Testimony 08/22/2023
Horse Heaven Wind Farm CTUIR comment 06/10/2021
Horse Heaven Wind Farm December 20, 2023 Mitigation Changes - Applicant 12/20/2023
Horse Heaven Wind Farm Notice - SEPA Determination of Significance and Request for Comments on Scope of Environmental Impact Statement 05/11/2021
Horse Heaven Wind Farm EXH-4001_T_REVISED - Prefiled Direct Testimony of Jessica Lally 08/23/2023
Horse Heaven Wind Farm Councilmember Sandison Resignation 10/24/2023
Horse Heaven Wind Farm TCC’s Motion to Supplement Record (David Kobus Deposition) 08/04/2023
Horse Heaven Wind Farm PHC1 Transcript 03/10/2023
Horse Heaven Wind Farm Appendix 4.6-1 GAL 2022 Wind Turbine Wildlife Collision Risk Assessment 12/16/2022
Horse Heaven Wind Farm Tri-Cities C.A.R.E.S. - Petition to Intervene - Attachment 02/03/2023
Horse Heaven Wind Farm DEIS_0001-0100 02/13/2023
Horse Heaven Wind Farm Comment from the Confederated Tribes of the Colville Reservation 06/23/2021
Horse Heaven Wind Farm EXH-5811_R - Kurt Kielisch Resume 08/23/2023
Horse Heaven Wind Farm Updated ASC Appendix D - Planning Determination 06/15/2022
Horse Heaven Wind Farm Ch.5 Cumulative Impacts - Final EIS 10/31/2023
Horse Heaven Wind Farm Appendix V - TLG Transportation Study 02/08/2021
Horse Heaven Wind Farm EXH-1028 Nine Canyon MDNS Conditions (2006) 08/15/2023
Horse Heaven Wind Farm EXH-5502_T Revised Pre-filed testimony Richard Simon Curriculum Vitae 08/25/2023

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