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County file — WI

Underground Storage Tanks in Columbia County, WI — 513 facilities, 266 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Columbia County, population 58,153.

513UST facilities
153tanks in service
1,100closed tanks
266leak records
16open cases
250no further action

Columbia County has 513 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 153 tanks in service and 1,100 tanks that have been closed or removed. Over the life of the program, 266 fuel releases were reported here; 250 (94% of records) were investigated and closed with No Further Action, and 16 of those cleanup cases were still open when the snapshot was compiled.

That works out to 26.3 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 Columbia County, WI?

The EPA UST Finder snapshot lists 513 registered UST facilities in Columbia County with 153 tanks currently in service, 1,100 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Columbia County?

266 releases from underground storage tanks are on record for Columbia County. 250 (94%) reached No Further Action status, while 16 cleanup cases remained open in the snapshot.

How do I check a specific address in Columbia County?

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