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County file — WI

Underground Storage Tanks in Portage County, WI — 508 facilities, 227 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Portage County, population 71,267.

508UST facilities
156tanks in service
1,001closed tanks
227leak records
8open cases
219no further action

Portage County has 508 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 156 tanks in service and 1,001 tanks that have been closed or removed, plus 3 temporarily out of service. Over the life of the program, 227 fuel releases were reported here; 219 (96% of records) were investigated and closed with No Further Action, and 8 of those cleanup cases were still open when the snapshot was compiled.

That works out to 21.9 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 Portage County, WI?

The EPA UST Finder snapshot lists 508 registered UST facilities in Portage County with 156 tanks currently in service, 1,001 closed or removed tanks, and 3 temporarily out of service.

How many fuel leaks have been reported in Portage County?

227 releases from underground storage tanks are on record for Portage County. 219 (96%) reached No Further Action status, while 8 cleanup cases remained open in the snapshot.

How do I check a specific address in Portage County?

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