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County file — WY

Underground Storage Tanks in Johnson County, WY — 68 facilities, 27 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Johnson County, population 8,661.

68UST facilities
34tanks in service
160closed tanks
27leak records
4open cases
23no further action

Johnson County has 68 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 34 tanks in service and 160 tanks that have been closed or removed, plus 9 temporarily out of service. Over the life of the program, 27 fuel releases were reported here; 23 (85% of records) were investigated and closed with No Further Action, and 4 of those cleanup cases were still open when the snapshot was compiled.

That works out to 39.3 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 Johnson County, WY?

The EPA UST Finder snapshot lists 68 registered UST facilities in Johnson County with 34 tanks currently in service, 160 closed or removed tanks, and 9 temporarily out of service.

How many fuel leaks have been reported in Johnson County?

27 releases from underground storage tanks are on record for Johnson County. 23 (85%) reached No Further Action status, while 4 cleanup cases remained open in the snapshot.

How do I check a specific address in Johnson County?

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