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County file — WY

Underground Storage Tanks in Sweetwater County, WY — 297 facilities, 165 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Sweetwater County, population 44,755.

297UST facilities
171tanks in service
698closed tanks
165leak records
52open cases
113no further action

Sweetwater County has 297 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 171 tanks in service and 698 tanks that have been closed or removed, plus 3 temporarily out of service. Over the life of the program, 165 fuel releases were reported here; 113 (68% of records) were investigated and closed with No Further Action, and 52 of those cleanup cases were still open when the snapshot was compiled.

That works out to 38.2 tanks in service per 10,000 residents, above the Wyoming average of 30.9 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.

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Frequently asked questions

How many underground storage tanks are in Sweetwater County, WY?

The EPA UST Finder snapshot lists 297 registered UST facilities in Sweetwater County with 171 tanks currently in service, 698 closed or removed tanks, and 3 temporarily out of service.

How many fuel leaks have been reported in Sweetwater County?

165 releases from underground storage tanks are on record for Sweetwater County. 113 (68%) reached No Further Action status, while 52 cleanup cases remained open in the snapshot.

How do I check a specific address in Sweetwater County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Sweetwater 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 Wyoming DEQ Storage Tank Program.

Verify with the state

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

Nearby countys in Wyoming

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