THUMS C-440 Well Rework Program at Island Chaffee

THUMS Long Beach Co is scheduled to rework the existing C-440 production well located in the Wilmington Oil Field on Island Chaffee, Los Angeles, California, under permit #7056580 approved by the California Department of Conservation, Geologic Energy Management Division. The project involves running a casing sleeve and an inner liner into the existing wellbore, replacing downhole production equipment, and restoring the well to its prior operational status without expanding its capacity. This activity qualifies for categorical exemptions under the California Environmental Quality Act, specifically Class 1 (Existing Facilities) and Class 2 (Replacement or Reconstruction), as outlined in the CalGEM rework exemptions guidance document from December 2023 and referenced California Code of Regulations sections 14 CCR § 15301 and § 15302. The work is conducted in-place at the current well site, with regulatory oversight and final acceptance occurring at the location on Island Chaffee. The project has been certified on July 14, 2026, with no financial data, contract type, pricing structures, delivery schedules, or federal acquisition regulation clauses included in the documentation, indicating this is a regulatory approval action rather than a federal procurement contract. All activities must comply with state oil and gas safety and environmental standards, including those under 14 CCR § 1684.1 and § 1684.2, and the well’s API number is 0423723774. Primary contact for the project is Hafiz Ali Mohammed, Associate Oil and Gas Engineer at CalGEM, with supporting correspondence directed through CalGEM Southern District in Long Beach.