California Oil Tank Removal, Inspection & UST Contractors
Find contractors in California for oil tank removal, underground storage tank inspection, fuel tank testing, decommissioning, and remediation.
California Oil Tank Removal, Fuel Tank Inspection & UST Contractors
Don't see your company listed?
If you provide oil tank removal, UST inspection, testing, or related services in California, request to be added to our directory.
Request to Be Listed →California UST regulations are administered by the California State Water Resources Control Board. For federal UST requirements, see the EPA Underground Storage Tank Program.
Underground Storage Tanks in California
- Active regulated USTs
- 37,000
- Federally regulated tank compartments registered as active, as of March 31, 2026
- Closed USTs
- 161,821
- Regulated tank compartments closed to date, as of March 31, 2026
- Leaks not yet cleaned up
- 1,344
- Confirmed petroleum releases not yet cleaned up, of 44,678 confirmed to date, as of March 31, 2026
- Homes heated with oil
- 0.2%
- Share of occupied homes whose main heating fuel is fuel oil, kerosene or similar, 2024 estimate
Home heating oil tanks are exempt from the federal UST rules and are not in the EPA counts.
Sources: EPA, UST Performance Measures, Mid-Year FY 2026; U.S. Census Bureau, American Community Survey 2024 1-year estimates, table B25040 (House Heating Fuel).
Common Questions About UST Contractors in California
Does California require a licensed UST contractor?
Yes. California requires contractors performing regulated underground storage tank work to hold a credential issued by the California Contractors State License Board.
Who regulates underground storage tanks in California?
The California State Water Resources Control Board oversees underground storage tank regulations in California. Federal requirements come from the EPA underground storage tank program.
How do I verify a UST contractor's credentials in California?
Ask the contractor for their credential number and confirm it directly with the California Contractors State License Board. Also ask for proof of insurance appropriate for tank work.