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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: 06/10/2025
Format: 06/10/2025
Document Group Document Name File Datesort ascending
Horse Heaven Wind Farm Appendix X - Traffic Impact Analysis - Redline 09/25/2023
Horse Heaven Wind Farm Appendix C - SEPA checklist 09/25/2023
Horse Heaven Wind Farm Appendix P - Draft Emergency Response Plan (Revised) Redline 09/25/2023
Horse Heaven Wind Farm Scout Clean Energy Letter - Project Update Responding to Adjudication Concerns 09/25/2023
Horse Heaven Wind Farm Appendix D - County Zoning Determination 09/25/2023
Horse Heaven Wind Farm Appendix Q - Visual Simulations (Revised) Redline 09/25/2023
Horse Heaven Wind Farm Layout Option 1 09/25/2023
Horse Heaven Wind Farm Appendix K - REDACTED Biological Reports (Revised) 09/25/2023
Horse Heaven Wind Farm Appendix E - Turbine and Access Road Displacement 09/25/2023
Horse Heaven Wind Farm Appendix Q - Visual Simulations (Revised) 09/25/2023
Horse Heaven Wind Farm Layout Option 2 09/25/2023
Horse Heaven Wind Farm Appendix F - Project Lease Boundary Landowner List with Legal Descriptions 09/25/2023
Horse Heaven Wind Farm Appendix S - Economic Impact Study 09/25/2023
Horse Heaven Wind Farm Appendix G - Shadow Flicker Analysis Memo (Revised) 09/25/2023
Horse Heaven Wind Farm Appendix T - Notice of Intent for NPDES Permit 09/25/2023
Horse Heaven Wind Farm Final ASC - Redline (Redacted) 09/25/2023
Horse Heaven Wind Farm Order on Post-Hearing Supplemental Testimony 09/22/2023
Horse Heaven Wind Farm EXH-1065_S_REVISED - Supplemental Testimony of Brynn Guthrie on Behalf of Scout Clean Energy 09/21/2023
Horse Heaven Wind Farm EXH-5301_T-RECON - Pre-Filed Testimony of TCC Witness Paul Krupin 09/21/2023
Whistling Ridge Energy Project 005 09/21/2023

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