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County file — WA

Underground Storage Tanks in Spokane County, WA — 1,189 facilities, 90 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Spokane County, population 503,651.

1,189UST facilities
503tanks in service
2,806closed tanks
90leak records
55open cases
35no further action

Spokane County has 1,189 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 503 tanks in service and 2,806 tanks that have been closed or removed, plus 11 temporarily out of service. Over the life of the program, 90 fuel releases were reported here; 35 (39% of records) were investigated and closed with No Further Action, and 55 of those cleanup cases were still open when the snapshot was compiled.

That works out to 10.0 tanks in service per 10,000 residents, below the Washington average of 11.8 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 Spokane County, WA?

The EPA UST Finder snapshot lists 1,189 registered UST facilities in Spokane County with 503 tanks currently in service, 2,806 closed or removed tanks, and 11 temporarily out of service.

How many fuel leaks have been reported in Spokane County?

90 releases from underground storage tanks are on record for Spokane County. 35 (39%) reached No Further Action status, while 55 cleanup cases remained open in the snapshot.

How do I check a specific address in Spokane County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Spokane 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 WA Ecology UST Program.

Verify with the state

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

Nearby countys in Washington

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