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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

Columbia Generating Station - - Docket:180299

Process Type Document Group(s) Document link File Date Document Set
Permits Letter
NPDES Administrative Extension 09/13/2019 00100
September 13, 2019 NPDES Administrative Extension
Permits Letter
SWDP Revision 1 Cover Letter 09/14/2021 00110
September 14, 2021 SWDP Temporary permit Revision 1
Permits Letter
NPDES Issuance Letter 05/30/2023 NPDES
Permits Map
Vicinity Map Attachment 06/26/2018 00108
USACE Request of comments on Permit application for Desert...
Permits Map
Permit Notice Map Attachment 06/18/2018 00108
USACE Request of comments on Permit application for Desert...
Permits Notice
Amendment 4 Draft Notice 05/16/2018 00005
Notice, fact sheet, draft Prevention of Significant...
Permits Notice
Notice 04/19/2019 00043
Notice of public comment for the Grays Harbor Draft NPDES...
Permits Notice
Public comment period extension notice - Title V AOP 02/11/2020 00064
Title V Air Operating Permit Public Comment Period...
Permits Notice
Notice of Public Comment 09/22/2021 00071
2021 Draft TitleV Air Operating Permit
Permits Notice
Notice of Public Comment 04/20/2023 001
Permits Notice
Wautoma Notice of Public Comment on Draft Site Certification Agreement 11/12/2024 001
Permits Notice
Aviso de comentario público de Wautoma sobre el borrador del acuerdo de certificación del sitio 11/12/2024 001
Permits Notice
Wautoma Solar Draft Site Certification Agreement (SCA) 11/12/2024 001
Permits Notice
USACE Permit Notification NWS-2018-0564 06/18/2018 00108
USACE Request of comments on Permit application for Desert...
Permits Notice
Columbia Generating Station NPDES Permit Draft Notice 02/16/2023 023
Permits NPDES (Nat'l Pollution Discharge Elim Sys Permit
Columbia Generating Station NPDES Permit Draft 02/16/2023 023
Permits Permit
PSD Amendment 4 07/17/2018 00019
Final Approval of the Prevention of Significant...
Permits Permit
Title V Air Operating Permit 12/29/2016 00023
Permits for the Chehalis Generation Facility
Permits Permit
Construction Stormwater General Permit 04/02/2009 00024
Permits for the Wild Horse Wind Energy Project
Permits Permit
Nation Wide Permit 05/03/2007 00028
Permits for the Kittitas Valley Wind Farm
Permits Permit
Construction Stormwater General Permit 10/23/2008 00028
Permits for the Kittitas Valley Wind Farm
Permits Permit
No. EFSEC/2001-01 Final Approval Notice of Construction and Prevention of Significant Deterioration 10/23/2001 00030
Permits for Grays Harbor Energy Center
Permits Permit
No. EFSEC/2001-01 Amendment 2 Final Determination Notice of Construction and Prevention of Significant Deterioration 09/07/2004 00030
Permits for Grays Harbor Energy Center
Permits Permit
No. EFSEC/2001-01 Amendment 3 - Final Approval Prevention of Significant Deterioration and Notice of Construction 03/17/2006 00030
Permits for Grays Harbor Energy Center
Permits Permit
No. EFSEC/2001-01 Amendment 3 - Final Approval Prevention of Significant Deterioration and Notice of Construction 04/03/2006 00030
Permits for Grays Harbor Energy Center
Permits Permit
National Pollutant Discharge Elimination System Waste Discharge Permit WA-002496-1 05/13/2008 00030
Permits for Grays Harbor Energy Center
Permits Permit
No. EFSEC/2009-02 Final Approval Notice of Construction and Prevention of Significant Deterioration 12/17/2010 00030
Permits for Grays Harbor Energy Center
Permits Permit
No. EFSEC/2001-01, Amendment 4 -Final Approval of the Prevention of Significant Deterioration and Notice of Construction 06/28/2018 00030
Permits for Grays Harbor Energy Center
Permits Permit
NPDES Permit Effective dates 4/9/2001 - 4/9/2006 04/09/2001 00034
Permits for the Columbia Generating Station
Permits Permit
NPDES Permit Effective dates 05/25/2006 - 05/25/2011 05/25/2006 00034
Permits for the Columbia Generating Station
Permits Permit
NPDES Permit Effective Dates 09/30/2014 - 10/31/2019 11/01/2014 00034
Permits for the Columbia Generating Station
Permits Permit
Draft NPDES Permit 04/19/2019 00042
Draft NPDES Permit
Permits Permit
NPDES Permit 2019 - Fact Sheet 06/18/2019 00052
NPDES Permit Renewal 2019. (Hardcopy rec'd 6-21-19)
Permits Permit
NPDES Permit Renewal 2019 - Permit 06/18/2019 00052
NPDES Permit Renewal 2019. (Hardcopy rec'd 6-21-19)
Permits Permit
Title V Draft Air Operating Permit 12/17/2019 00059
Title V Air Operating Permit Draft for public comment
Permits Permit
Title V Draft Air Operating Permit Technical Support Document 12/17/2019 00059
Title V Air Operating Permit Draft for public comment
Permits Permit
Title V Air Operating Permit Technical Support Document 06/16/2020 00067
Grays Harbor Air Operating Permit
Permits Permit
Air Operating Permit 06/16/2020 00067
Grays Harbor Air Operating Permit
Permits Permit
2021 Draft Title V Air Operating Permit Basis 09/01/2021 00071
2021 Draft TitleV Air Operating Permit
Permits Permit
2021 Draft Title V Air Operating Permit 09/01/2021 00071
2021 Draft TitleV Air Operating Permit
Permits Permit
2021 Draft Title V AOP 09/22/2021 00071
2021 Draft TitleV Air Operating Permit
Permits Permit
Draft Air Operating Permit Basis 09/01/2021 00072
Air Operating Permit Revision 3 Draft
Permits Permit
Draft Air Operating Permit Revision 3 09/01/2021 00072
Air Operating Permit Revision 3 Draft
Permits Permit
Tuusso JARPA Application Form 12/22/2017 00073
Joint Aquatic Resources Permit Application (JARPA) on...
Permits Permit
CGF Title V Air Operating Permit Basis Statement 01/06/2022 00073
Title V Air Operating Permit
Permits Permit
CGF Title V Air Operating Permit - Signed 01/06/2022 00073
Title V Air Operating Permit
Permits Permit
Fact Sheet 12/08/2020 00080
Preliminary Determination of approval of the Prevention of...
Permits Permit
PSD Amendment 5 draft 12/08/2020 00080
Preliminary Determination of approval of the Prevention of...
Permits Permit
2019 NPDES Permit Modification 03/19/2019 00083
CGS NPDES Permit Modification 2019 (Hard copy rec'd 05...
Permits Permit
PSD Amendment 5 Permit 01/25/2021 00089
PSD Permit Issuance

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