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County file — CA

Underground Storage Tanks in Mendocino County, CA — 62 facilities, 424 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Mendocino County, population 89,584.

62UST facilities
165tanks in service
2closed tanks
424leak records
44open cases
379no further action

Mendocino County has 62 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 165 tanks in service and 2 tanks that have been closed or removed. Over the life of the program, 424 fuel releases were reported here; 379 (89% of records) were investigated and closed with No Further Action, and 44 of those cleanup cases were still open when the snapshot was compiled.

That works out to 18.4 tanks in service per 10,000 residents, well above the California average of 9.5 per 10,000. Countywide numbers are context, not a verdict on any parcel — tank risk is hyper-local, falling off within a few hundred feet.

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Frequently asked questions

How many underground storage tanks are in Mendocino County, CA?

The EPA UST Finder snapshot lists 62 registered UST facilities in Mendocino County with 165 tanks currently in service, 2 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Mendocino County?

424 releases from underground storage tanks are on record for Mendocino County. 379 (89%) reached No Further Action status, while 44 cleanup cases remained open in the snapshot.

How do I check a specific address in Mendocino County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Mendocino County address to map every registered tank and reported leak within a mile, with distances in feet and an A–F screening grade. Verify current records with the California SWRCB UST Program.

Verify with the state

The live regulatory record for any Mendocino County facility or leak case is held by the California SWRCB UST Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in California

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