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County file — MT

Underground Storage Tanks in Chouteau County, MT — 121 facilities, 63 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Chouteau County, population 5,679.

121UST facilities
30tanks in service
214closed tanks
63leak records
15open cases
48no further action

Chouteau County has 121 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 30 tanks in service and 214 tanks that have been closed or removed, plus 2 temporarily out of service. Over the life of the program, 63 fuel releases were reported here; 48 (76% of records) were investigated and closed with No Further Action, and 15 of those cleanup cases were still open when the snapshot was compiled.

That works out to 52.8 tanks in service per 10,000 residents, well above the Montana 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 Chouteau County, MT?

The EPA UST Finder snapshot lists 121 registered UST facilities in Chouteau County with 30 tanks currently in service, 214 closed or removed tanks, and 2 temporarily out of service.

How many fuel leaks have been reported in Chouteau County?

63 releases from underground storage tanks are on record for Chouteau County. 48 (76%) reached No Further Action status, while 15 cleanup cases remained open in the snapshot.

How do I check a specific address in Chouteau County?

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

Verify with the state

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

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