THUMS B-106 Well Rework Program at Island White

THUMS Long Beach Co is authorized under permit 7052437 to perform a rework of the B-106 injector well located offshore in the Wilmington Oil Field, California. The project scope involves repairing the existing wellbore casing by installing and cementing a casing sleeve to restore well integrity and return the well to its original operational use. This activity is classified under Group B of the CalGEM rework exemptions guidance document published in December 2023 and is designed to maintain existing infrastructure without increasing operational capacity. The California Department of Conservation, Geologic Energy Management Division (CalGEM) has issued a Notice of Exemption for this project, determining it is exempt from full environmental review under the California Environmental Quality Act (CEQA). This determination is based on categorical exemptions including Class 1 for existing facilities, Class 2 for replacement or reconstruction, and Class 4 for minor land alterations, as well as Classes 7 and 8 for the protection of natural resources and the environment. The project is situated at coordinates 33.75349426, -118.15936279, and all work must comply with 14 CCR sections 15301 through 15308 and 1684.1 through 1684.2 to ensure public health, safety, and environmental protection.