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County file — CA

Underground Storage Tanks in Los Angeles County, CA — 3,148 facilities, 7,499 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Los Angeles County, population 10,275,545.

3,148UST facilities
8,546tanks in service
0closed tanks
7,499leak records
522open cases
6,968no further action

Los Angeles County has 3,148 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 8,546 tanks in service and 0 tanks that have been closed or removed. Over the life of the program, 7,499 fuel releases were reported here; 6,968 (93% of records) were investigated and closed with No Further Action, and 522 of those cleanup cases were still open when the snapshot was compiled.

That works out to 8.3 tanks in service per 10,000 residents, below 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.

Check any address in Los Angeles County

Paste an address to map every registered tank and reported leak within a mile — distances in feet, cleanup statuses, and an A–F screening grade. Free, no login.

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Frequently asked questions

How many underground storage tanks are in Los Angeles County, CA?

The EPA UST Finder snapshot lists 3,148 registered UST facilities in Los Angeles County with 8,546 tanks currently in service, 0 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Los Angeles County?

7,499 releases from underground storage tanks are on record for Los Angeles County. 6,968 (93%) reached No Further Action status, while 522 cleanup cases remained open in the snapshot.

How do I check a specific address in Los Angeles County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Los Angeles 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 Los Angeles 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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