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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. 

The Carriger Solar Draft Order #899 is available for comment April 29th through May 1st 11:59 pm. You can see the Draft Order under the "Orders" header towards the bottom of the Carriger Solar webpage.  

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

If you would like to submit a comment for either of the above visit our comment database: https://comments.efsec.wa.gov

EFSEC Document

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

Process Type Document Group(s) Document link File Date Document Set
SEPA Draft EIS Chapter 7 - List of Preparers 12/16/2022
SEPA Draft EIS Chapter 8 - Glossary 12/16/2022
SEPA Draft EIS Chapter 9 - Distribution 12/16/2022
SEPA Draft EIS Chapter 3 - Affected Environment 12/16/2022
SEPA Draft EIS Appendix 3.10-2 SWCA 2022 Visual Impact Assessment Report 12/16/2022
SEPA Draft EIS FECHA DE PUBLICACIÓN DECLARACIÓN PRELIMINAR DE IMPACTO AMBIENTAL 12/22/2022
SEPA Draft EIS HOJA INFORMATIVA 12/22/2022
SEPA Draft EIS Appendix A 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Appendix B 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Appendix C 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Appendix D 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 1 Table 1-2 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 1 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 2 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 3 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 4 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 5 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 6 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS DEIS Chapter 7 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Cover page 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Fact Sheet 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Figures 1-1 through 3.14-2 (Large file!) 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Table of Contents 12/12/2003 00029
Draft Environmental Impact Statement for Kittitas Valley...
SEPA Draft EIS Complete DRAFT EIS Document 12/16/2022 001
SEPA Draft EIS DSEIS Chapter 1 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS DSEIS Chapter 2 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS DSEIS Chapter 3 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS DSEIS Chapter 4 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS DSEIS Chapter 5 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS DSEIS Cover letter, fact sheet and table of contents 04/02/2009 00147
Desert Claim Draft Supplemental Environmental Impact...
SEPA Draft EIS Appendix A 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix B 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix C 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix D 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix E 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix F 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix G 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix H 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix I 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix J 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix K 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix L 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix M 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix N 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix O 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Appendix P 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Chapter 1 - Project Background and Purpose and Need 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Chapter 2 - Proposed Action and Alternatives 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Chapter 3 - Affected Environment, Impacts, and Mitigation Measures 11/24/2015 00656
Draft Environmental Impact Statement
SEPA Draft EIS Chapter 4 - Crude Oil Safety Considerations, Potential Release Scenarios, and Impact Analysis 11/24/2015 00656
Draft Environmental Impact Statement

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