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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

There are two Special Meetings for the Carriger Solar project set for May 5th and May 6th. For more information, visit the Carriger Solar webpage

EFSEC Document

Horse Heaven Wind Farm - Horse Heaven Wind Farm - Docket:210011

Process Type Document Group(s) Document link File Date Document Set
Application Documents [No group] Proof of Service 02/25/2021 00009
Library Letters for application for Horse Heaven Wind Farm
Application Documents [No group] Proof of Service 02/25/2021 00009
Library Letters for application for Horse Heaven Wind Farm
Application Documents [No group] 20211028_LbryCvrLtr 00009
Application notice to Libraries for the Badger Mountain...
Application Documents [No group] 20211028_ApplicationNotice 00010
Application notice of 1-Mile Landowners for the Badger...
Application Documents [No group] Proof of Service 03/02/2021 00011
Notice for Public Informational Meeting and Land Use Hearing
Application Documents Appendix I Wetland Amendment: Wetlands and Other Waters Delineation August 12, 2021 08/12/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O: Acoustic Modeling Results by Noise Sensitive Receptor Update November 02, 2021 11/02/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O Figure 4.1.1-2 Operational Recieved Sound Levels November 23, 2021 11/23/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O Figure 4.1.1-3 Operational Recieved Sound Levels November 23, 2021 11/23/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O Figure 4.1.1-4 Operational Recieved Sound Levels November 23, 2021 11/23/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O Figure 4.1.1-5 Operational Recieved Sound Levels November 23,2021 11/23/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix O Acoustic Model Sound Source Input Data November 2021 11/24/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Appendix I Wetland Report Photos: Wetlands and Other Waters Delineation August 12, 2021 08/12/2021 00050
Updated and Supplemental Reports to the ASC
Application Documents Data Response #1 Cover Letter 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Response to Data Request 1 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Appendix A - SEPA Checklist 01/26/2018 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Appendix B - Vegetation Management Plan 01/26/2018 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Appendix C - Habitat, Vegetation, Fish and Wildlife Assessment 01/26/2018 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Updated Application for Site Certification 01/26/2018 00078
Response to Data Request #1 on behalf of TUUSSO Energy, LLC...
Application Documents Layout Option 1 09/25/2023 001
Application Documents Layout Option 2 09/25/2023 001
Application Documents Comments for Philip Doolittle 06/06/2018 00184
Public comments of Philip H. Doolittle. (016) (scanned...
Application Documents Returned mail for Mark Pritchard 06/07/2018 00188
Returned mail for Notice of Special Council meeting for...
Application Documents Comments for Keith Crimp. 06/20/2018 00190
Comments of Keith Crimp on behalf of Ellensburg Golf Club...
Application Documents Comments of Mary L Christensen 06/27/2018 00193
Comments of Mary L. Christensen. (019) (via email) (hard...
Application Documents Comments for Jeff Dunning 06/29/2018 00194
SCA Comments from Jeff Dunning. (018) (via email)
Application Documents Land Owner Rights 12/20/2023 Pre-Application
Application Email 20171128_PritchardMailList 00041
Email reference mailing list Pritchard.
Application Email 20171128_PritchardRespMailList 00041
Email reference mailing list Pritchard.
Application Email 20171128_RespPritchardMailList_A1 00041
Email reference mailing list Pritchard.
Application Email 20171128_RespPritchardMailList_A2 00041
Email reference mailing list Pritchard.
Application Email 20171128_RespPritchardMailList_A2 00041
Email reference mailing list Pritchard.
Application Email BPA Review Email 00046
Email from Lesli Dennis on behalf of Bonneville Power...
Application Email Email for Letter to Kittitas County requesting meeting 04/30/2018 00177
Letter from Stephen Posner to Neil Caulkins, Kittitas...
Application Email Email cover for Jeff Dunning Comments 06/26/2018 00194
SCA Comments from Jeff Dunning. (018) (via email)
Application Letter ASC Extension Request 07/12/2022
Application Letter Original Application Cover Letter February 8, 2021 02/08/2021 00001
Original Application
Application Letter [No group] Opt Agency Notification Letter 02/17/2021 00002
Optional State agencies Horse Heaven Notification Letter
Application Letter Expedited Process Request 04/07/2022 00002
High Top and Ostrea Expedited Processing Request
Application Letter [No group] Tribal Notification Letter 02/17/2021 00003
Horse Heaven Wind Farm Tribal Notification letter
Application Letter [No group] Council Member Agencies Notification 02/17/2021 00004
Horse Heaven Wind Farm Notification letter to Council...
Application Letter [No group] Notification Letter to Council for the Environment 02/17/2021 00005
Horse Heaven Wind Farm Notification Letter to CFE
Application Letter [No group] Notification Letter to Benton County Commissioner 02/17/2021 00006
Horse Heaven Wind Farm Notification Letter Benton County...
Application Letter [No group] Notification Letter to Fisheries 02/17/2021 00007
Horse Heaven Wind Farm Notification Letter
Application Letter [No group] Notification Letter to Agencies 02/17/2021 00008
Horse Heaven Wind Farm Notification Letter to agencies
Application Letter [No group] Notice to Libraries 02/25/2021 00009
Library Letters for application for Horse Heaven Wind Farm
Application Letter Request for expedited processing 01/21/2021 00012
Request for expedited processing
Application Letter [No group] 20210316_LbryCvrLtr 03/15/2021 00014
Goose Prairie Library Notification Letter
Application Letter [No group] Library Notification Letter 03/15/2021 00014
Goose Prairie Library Notification Letter
Application Letter Notice of Withdrawal of expedited process request 03/29/2021 00018
Applicant's withdrawal of expedited process request

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