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County file — CA

Underground Storage Tanks in San Luis Obispo County, CA — 128 facilities, 275 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for San Luis Obispo County, population 284,693.

128UST facilities
363tanks in service
0closed tanks
275leak records
3open cases
272no further action

San Luis Obispo County has 128 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 363 tanks in service and 0 tanks that have been closed or removed. Over the life of the program, 275 fuel releases were reported here; 272 (99% of records) were investigated and closed with No Further Action, and 3 of those cleanup cases were still open when the snapshot was compiled.

That works out to 12.8 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 San Luis Obispo County, CA?

The EPA UST Finder snapshot lists 128 registered UST facilities in San Luis Obispo County with 363 tanks currently in service, 0 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in San Luis Obispo County?

275 releases from underground storage tanks are on record for San Luis Obispo County. 272 (99%) reached No Further Action status, while 3 cleanup cases remained open in the snapshot.

How do I check a specific address in San Luis Obispo County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any San Luis Obispo 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 San Luis Obispo 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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