TankCheck

TankCheck / States / Oregon

County file — OR

Underground Storage Tanks in Washington County, OR — 770 facilities, 772 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Washington County, population 587,291.

770UST facilities
438tanks in service
1,842closed tanks
772leak records
115open cases
657no further action

Washington County has 770 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 438 tanks in service and 1,842 tanks that have been closed or removed, plus 37 temporarily out of service. Over the life of the program, 772 fuel releases were reported here; 657 (85% of records) were investigated and closed with No Further Action, and 115 of those cleanup cases were still open when the snapshot was compiled.

That works out to 7.5 tanks in service per 10,000 residents, well below the Oregon average of 12.9 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 Washington 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 Washington County, OR?

The EPA UST Finder snapshot lists 770 registered UST facilities in Washington County with 438 tanks currently in service, 1,842 closed or removed tanks, and 37 temporarily out of service.

How many fuel leaks have been reported in Washington County?

772 releases from underground storage tanks are on record for Washington County. 657 (85%) reached No Further Action status, while 115 cleanup cases remained open in the snapshot.

How do I check a specific address in Washington County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Washington 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 Oregon DEQ UST Program.

Verify with the state

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

Nearby countys in Oregon

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