UIC Class I Permit No. R9UIC-CA1-FY16-1: San Joaquin Refining Company Limited, Bakersfield, CA

Documents relating to EPA's issuance of a federal Underground Injection Control (UIC) Class I Non-hazardous Industrial Waste Disposal Well Permit to San Joaquin Refinery Company, Inc. (SJR), located in Bakersfield, CA.

The permit authorizes SJR to continue operating one (1) active, existing well: WD-1, and potentially install one (1) proposed additional well: WD-2. The UIC Class I Permit authorizes injection of non-hazardous waste generated from the San Joaquin Refinery into the Santa Margarita Formation, at depths ranging between 4,020’ to 4,225’ below ground surface, over a ten (10) year period.

• Minor Modification to Permit No. R9UIC-CA1-FY16-1 MASIP (pdf) (270.38 KB, March 10, 2025)
  Minor modification to UIC Class I Permit No. R9UIC-CA1-FY16-1, issued to San Joaquin Refining Company Limited, Bakersfield, CA. This minor modification reflects an updated maximum allowable surface injection pressure for WD-1 and WD-2.
• Minor Modification to Permit No. R9UIC-CA1-FY16-1 (pdf) (374.7 KB, December 19, 2023)
  Underground Injection Control (UIC) permit no. R9UIC-CA1-FY16-1 issued to San Joaquin Refining Company Limited is hereby modified to reflect changes in the well construction of WD-2. Specifically, the modification revises the approved perforated injection intervals of the well. Portions of Part II.B.6 of the Permit and figures of WD-2 in Appendix B are revised to incorporate the above changes.
• Major Modification to UIC Permit No. R9UIC-CA1-FY16-1 (pdf) (374.43 KB, June 2, 2022)
  This major modification reflects a revised method for calculating the maximum allowable surface injection pressure for Well San Joaquin Refining Company WD-1 stipulated in Part II, Section D.3.a. of the Permit.
• UIC Class I Permit No. R9UIC-CA1-FY16-1: San Joaquin Refining Company Limited (pdf) (342.96 KB, May 4, 2020)
  Final Underground Injection Control (UIC) Class I Permit for injection operations for San Joaquin Refining Company Limited, Bakersfield, CA.
• Appendices: UIC Permit R9UIC-CA1-FY16-1 (pdf) (3.4 MB, May 4, 2020)
  Appendices A-H to the Final Underground Injection Control (UIC) Class I Non-hazardous Industrial Waste Disposal Well Permit for San Joaquin Refining Company Limited, Bakersfield, CA.