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County file — WI

Underground Storage Tanks in Sauk County, WI — 514 facilities, 273 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Sauk County, population 64,500.

514UST facilities
159tanks in service
1,110closed tanks
273leak records
10open cases
263no further action

Sauk County has 514 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 159 tanks in service and 1,110 tanks that have been closed or removed, plus 1 temporarily out of service. Over the life of the program, 273 fuel releases were reported here; 263 (96% of records) were investigated and closed with No Further Action, and 10 of those cleanup cases were still open when the snapshot was compiled.

That works out to 24.7 tanks in service per 10,000 residents, 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 Sauk County, WI?

The EPA UST Finder snapshot lists 514 registered UST facilities in Sauk County with 159 tanks currently in service, 1,110 closed or removed tanks, and 1 temporarily out of service.

How many fuel leaks have been reported in Sauk County?

273 releases from underground storage tanks are on record for Sauk County. 263 (96%) reached No Further Action status, while 10 cleanup cases remained open in the snapshot.

How do I check a specific address in Sauk County?

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