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County file — WI

Underground Storage Tanks in Oneida County, WI — 487 facilities, 245 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Oneida County, population 36,013.

487UST facilities
145tanks in service
1,066closed tanks
245leak records
10open cases
235no further action

Oneida County has 487 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 145 tanks in service and 1,066 tanks that have been closed or removed. Over the life of the program, 245 fuel releases were reported here; 235 (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 40.3 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.

Check any address in Oneida County

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Frequently asked questions

How many underground storage tanks are in Oneida County, WI?

The EPA UST Finder snapshot lists 487 registered UST facilities in Oneida County with 145 tanks currently in service, 1,066 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Oneida County?

245 releases from underground storage tanks are on record for Oneida County. 235 (96%) reached No Further Action status, while 10 cleanup cases remained open in the snapshot.

How do I check a specific address in Oneida County?

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