UIC Class V Permit R9UIC-CA5-FY20-3: Elk Hills Power LLC, Tupman, CA

Class V Underground Injection Control (UIC) Permit No. R9UIC-CA5-FY20-3 issued to Elk Hills Power LLC (EHP), 4026 Skyline Road, Tupman, CA 93276. EHP operates a natural gas-fired facility which generates 550 MW of electricity. EHP has 3 active injection wells that dispose of non-hazardous power plant wastewater into the Upper Tulare formation within the Elk Hills oil field. The UIC Permit authorizes continued injection by EHP for a 10-year term. Docket No. EPA-R09-OW-2020-0733.

Related Content: Consent Agreement and Proposed Final Order

Intent to Reissue Class I UIC Permit to Elk Hills Power LLC, Tupman, CA

Opportunity for public comment on proposed re-issue of Class V Underground Injection Control (UIC) Permit No. R9UIC-CA5-FY20-3 issued to Elk Hills Power LLC (EHP), 4026 Skyline Road, Tupman, CA 93276.
- Comments Due Date: August 29, 2025
- Geographic Locations: Southwest, California

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UIC Permit Fact Sheet: Elk Hills Power, Tupman, CA (pdf) (296.16 KB, January 2021)
EPA Fact Sheet for Class V Non-Hazardous Underground Injection Control Permit Permit Number R9UIC-CA5-FY20-3, Elk Hills Power LLC, Tupman, California.
Class V UIC Permit No. R9UIC-CA5-FY20-3: Elk Hills Power, LLC, Tupman, CA (pdf) (448.24 KB, March 5, 2021)
Class V UIC Permit No. R9UIC-CA5-FY20-3 for Elk Hills Power, LLC, 4026 Skyline Road, Tupman, CA 93276.
Appendices A-H: Elk Hills Power LLC UIC Class V Permit R9UIC-CA5-FY20-3 (pdf) (11.82 MB, January 2021)
Appendices A-H for Elk Hills Power, LLC. UIC Class V Permit R9UIC-CA5-FY20-3.