Due to public health concerns related to the spread of the novel corona virus (COVID-19), the Energy Facility Site Evaluation Council office (EFSEC) is closed to the public as of March 16, 2020. All EFSEC staff are telecommuting until further notice and EFSEC operations will continue remotely. You may reach EFSEC by phone (360) 664-1345 or by email efsec@efsec.wa.gov during regular business hours, 8 am – 5 pm, Monday through Friday. EFSEC Council meetings will be held by teleconference until further notice. Please check this site regularly for updates.

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Horse Heaven Application

Application Extension Request

The Application Extension Request was approved by the Council at the January 18, 2022 EFSEC Council Meeting.

Application Extension Request

Document Titlesort ascending Document Date
Extension Request 2 09/07/2022
Extension Request 01/07/2022

Expedited process

Application

Updated ASC

Document Titlesort ascending Document Date
Updated ASC Cover Letter June 15, 2022 06/15/2022
Updated ASC Appendix V - TLG Transportation Study 12/01/2022
Updated ASC Appendix U - Consultation Documents 12/01/2022
Updated ASC Appendix T - Notice for Intent for National Pollutant Discharge Elimination System (NPDES) 12/01/2022
Updated ASC Appendix S - Economic Impact Assessment 12/01/2022
Updated ASC Appendix R - Cultural Reports 12/01/2022
Updated ASC Appendix Q - Visual Simulation 12/01/2022
Updated ASC Appendix O - Acoustic Modeling Results by Noise Sensitive Receptor 12/01/2022
Updated ASC Appendix N - Revegetation and Noxious Weed Control Plan 12/01/2022
Updated ASC Appendix M - Bird & Bat Conservation Strategy 12/01/2022
Updated ASC Appendix L - Wildlife and Habitat Mitigation Plan 12/01/2022
Updated ASC Appendix K - Biological Reports 12/01/2022
Updated ASC Appendix J - Water Source Documentation 12/01/2022
Updated ASC Appendix I - Wetlands Water Delineation Report 12/01/2022
Updated ASC Appendix H - Glare Analysis Report 12/01/2022
Updated ASC Appendix G - Shadow Flicker Analysis 12/01/2022
Updated ASC Appendix F - Land Owner List and Legal Descriptions 12/01/2022
Updated ASC Appendix E - Turbine and Access Road Displacement Area 12/01/2022
Updated ASC Appendix D - Planning Determination 12/01/2022
Updated ASC Appendix C - SEPA Checklist 12/01/2022
Updated ASC Appendix B - Preliminary Geotech Report 12/01/2022
Updated ASC Appendix A - Decommissioning Plan 12/01/2022
Updated ASC Appendix P - Emergency Response Plan 12/01/2022
Updated Application for Site Certification (ASC) 12/01/2022
Population Viability Analysis of Ferruginous Hawk (Buteo regalis) in Eastern Washington 11/14/2022
Multi-scale Resource Selection of Ferruginous Hawk (Buteo regalis) Nesting in Eastern Washington and at the Horse Heaven Clean Energy Center, Benton County, Washington 09/23/2022
Cumulative Effects to Birds, Bats, and Land Cover from Renewable Energy Development in the Columbia Plateau Ecoregion of Eastern Oregon and Washington 01/09/2023

Updated ASC Redline

Document Titlesort ascending Document Date
Updated ASC Redline Appendix T - Notice for Intent for National Pollutant Discharge Elimination System (NPDES) 12/01/2022
Updated ASC Redline Appendix S - Economic Impact Assessment 12/01/2022
Updated ASC Redline Appendix R - Cultural Reports 12/01/2022
Updated ASC Redline Appendix Q - Visual Simulation 12/01/2022
Updated ASC Redline Appendix P - Emergency Response Plan 12/01/2022
Updated ASC Redline Appendix O - Acoustic Modeling Results by Noise Sensitive Receptor 12/01/2022
Updated ASC Redline Appendix N - Revegetation and Noxious Weed Control Plan 12/01/2022
Updated ASC Redline Appendix M - Bird & Bat Conservation Strategy 12/01/2022
Updated ASC Redline Appendix K - Biological Reports 12/01/2022
Updated ASC Redline Appendix J - Water Source Documentation 12/01/2022
Updated ASC Redline Appendix I - Wetlands Water Delineation Report 12/01/2022
Updated ASC Redline Appendix H - Glare Analysis Report 12/01/2022
Updated ASC Redline Appendix G - Shadow Flicker Analysis 12/01/2022
Updated ASC Redline Appendix F - Land Owner List and Legal Descriptions 12/01/2022
Updated ASC Redline Appendix E - Turbine and Access Road Displacement Area 12/01/2022
Updated ASC Redline Appendix D - Planning Determination 12/01/2022
Updated ASC Redline Appendix C - SEPA Checklist 12/01/2022
Updated ASC Redline Appendix B - Preliminary Geotech Report 12/01/2022
Updated ASC Redline Appendix Appendix V - TLG Transportation Study 12/01/2022
Updated ASC Redline Appendix Appendix U - Consultation Documents 12/01/2022
Updated ASC Redline Appendix A - Decommissioning Plan 12/01/2022
Updated Application for Site Certification (ASC) Redline 12/01/2022

Copies of the Horse Heaven application can be found at:

Hard Copy:

Energy Facility Site Evaluation Council
621 Woodland Square Loop SW
Lacey, WA, 98504-3172
360-664-1345

Flash Drive:

Mid-Columbia Libraries – Kennewick Branch
1620 S Union Street
Kennewick, WA 99338

Mid-Columbia Libraries – Prosser Branch
902 7th St.
Prosser, WA 99350

Mid-Columbian Libraries - Keewydin Park Branch
405 S. Dayton St.
Kennewick, WA 99336

Richland Public Library
955 Northgate Dr
Richland, WA 99352

Mid-Columbia Libraries – Pasco Branch
1320 W. Hopkins St.
Pasco, WA 99301

Mid-Columbian Libraries - West Pasco Branch
7525 Wrigley Dr.
Pasco, WA 99301

WA State Library
Point Plaza East
6880 Capitol Blvd.
Tumwater, WA 98501