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County file — WI

Underground Storage Tanks in Fond du Lac County, WI — 742 facilities, 415 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Fond du Lac County, population 103,011.

742UST facilities
238tanks in service
1,575closed tanks
415leak records
14open cases
401no further action

Fond du Lac County has 742 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 238 tanks in service and 1,575 tanks that have been closed or removed, plus 4 temporarily out of service. Over the life of the program, 415 fuel releases were reported here; 401 (97% of records) were investigated and closed with No Further Action, and 14 of those cleanup cases were still open when the snapshot was compiled.

That works out to 23.1 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 Fond du Lac County, WI?

The EPA UST Finder snapshot lists 742 registered UST facilities in Fond du Lac County with 238 tanks currently in service, 1,575 closed or removed tanks, and 4 temporarily out of service.

How many fuel leaks have been reported in Fond du Lac County?

415 releases from underground storage tanks are on record for Fond du Lac County. 401 (97%) reached No Further Action status, while 14 cleanup cases remained open in the snapshot.

How do I check a specific address in Fond du Lac County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Fond du Lac 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 Fond du Lac 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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