Wild Horse Geothermal Power Plant (UPE10-0058)

Summary

SCH Number
2011092045
Lead Agency
Sonoma County
Document Title
Wild Horse Geothermal Power Plant (UPE10-0058)
Document Type
MND - Mitigated Negative Declaration
Received

Document Description
A Use Permit for an up to 49-megawatt geothermal power plant including an 18,000 s.f. turbine building, 53' high, a 21,000 s.f. cooling tower building with 5 cells, 50 feet high, a switch yard 120,000 s.f. in size, with a building inside the yard 800 s.f. in size and a 3-mile long transmission line. Construction of the transmission line (also referred to as the generation tie line) includes staging areas on existing drill pads or other previously disturbed areas. A 50 span 10 creeks and their associated forks. No transmission tower footings will be placed in creeks or their associated riparian zones. The transmission line will be hung by helicopter, no personnel or equipment will be in the creeks. Regular staffing at the power plant will consist of on-site, and/or, remote monitoring of the power plant by operations, backed up by roving stream field operators and maintenance specialists on an as needed basis. The proposed plant site was formerly the location of a 3-acre shop building for the Central CA Power Agency (CCPA).

Contact Information
Sigrid Swedenborg
Sonoma County Permit and Resource Management Department
2550 Ventura Avenue
Santa Rosa, CA 95403-2829

707 565 1914

Location

Counties
Sonoma
Cross Streets
Cloverdale - Geysers Road
Zip
95441
Total Acres
10
Parcel #
117-200-004, -013, 117-210-004, -008, 117-180-001, -011, -014
Waterways
Squaw Creek
Township
12N
Range
9W
Section
35
Base
MDB&M
Other Location Info
City/Nearest Community: Geyserville

Notice of Completion

Review Period Start
Review Period End
Development Type
Power:Geothermal (49 Watts)
Local Action
Use Permit
Project Issues
Toxic/Hazardous Public Services Geologic/Seismic Biological Resources Archaeologic-Historic Air Quality Aesthetic/Visual
Reviewing Agencies
Cal Fire Caltrans, District 4 California Department of Parks and Recreation California Energy Commission California Public Utilities Commission Department of Conservation Department of Fish and Wildlife, Region 3 Department of Water Resources Native American Heritage Commission Office of Historic Preservation Regional Water Quality Control Board, Region 1 Resources Agency State Lands Commission
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