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County file — WI

Underground Storage Tanks in Trempealeau County, WI — 317 facilities, 100 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Trempealeau County, population 29,589.

317UST facilities
102tanks in service
608closed tanks
100leak records
4open cases
96no further action

Trempealeau County has 317 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 102 tanks in service and 608 tanks that have been closed or removed, plus 4 temporarily out of service. Over the life of the program, 100 fuel releases were reported here; 96 (96% 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 34.5 tanks in service per 10,000 residents, well above the Wisconsin average of 20.7 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 Trempealeau County, WI?

The EPA UST Finder snapshot lists 317 registered UST facilities in Trempealeau County with 102 tanks currently in service, 608 closed or removed tanks, and 4 temporarily out of service.

How many fuel leaks have been reported in Trempealeau County?

100 releases from underground storage tanks are on record for Trempealeau County. 96 (96%) reached No Further Action status, while 4 cleanup cases remained open in the snapshot.

How do I check a specific address in Trempealeau County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Trempealeau 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 Wisconsin DATCP Storage Tanks.

Verify with the state

The live regulatory record for any Trempealeau County facility or leak case is held by the Wisconsin DATCP Storage Tanks. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Wisconsin

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