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County file — WY

Underground Storage Tanks in Crook County, WY — 56 facilities, 28 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Crook County, population 7,358.

56UST facilities
41tanks in service
122closed tanks
28leak records
6open cases
22no further action

Crook County has 56 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 41 tanks in service and 122 tanks that have been closed or removed. Over the life of the program, 28 fuel releases were reported here; 22 (79% of records) were investigated and closed with No Further Action, and 6 of those cleanup cases were still open when the snapshot was compiled.

That works out to 55.7 tanks in service per 10,000 residents, well 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 Crook County, WY?

The EPA UST Finder snapshot lists 56 registered UST facilities in Crook County with 41 tanks currently in service, 122 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Crook County?

28 releases from underground storage tanks are on record for Crook County. 22 (79%) reached No Further Action status, while 6 cleanup cases remained open in the snapshot.

How do I check a specific address in Crook County?

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