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County file — WY

Underground Storage Tanks in Sheridan County, WY — 142 facilities, 75 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Sheridan County, population 30,650.

142UST facilities
88tanks in service
331closed tanks
75leak records
11open cases
64no further action

Sheridan County has 142 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 88 tanks in service and 331 tanks that have been closed or removed. Over the life of the program, 75 fuel releases were reported here; 64 (85% of records) were investigated and closed with No Further Action, and 11 of those cleanup cases were still open when the snapshot was compiled.

That works out to 28.7 tanks in service per 10,000 residents, below 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 Sheridan County, WY?

The EPA UST Finder snapshot lists 142 registered UST facilities in Sheridan County with 88 tanks currently in service, 331 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Sheridan County?

75 releases from underground storage tanks are on record for Sheridan County. 64 (85%) reached No Further Action status, while 11 cleanup cases remained open in the snapshot.

How do I check a specific address in Sheridan County?

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