County file — IA

Underground Storage Tanks in Monona County, IA — 90 facilities, 41 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Monona County, population 9,134.

90UST facilities
43tanks in service
195closed tanks
41leak records
7open cases
34no further action

Monona County has 90 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 43 tanks in service and 195 tanks that have been closed or removed, plus 6 temporarily out of service. Over the life of the program, 41 fuel releases were reported here; 34 (83% of records) were investigated and closed with No Further Action, and 7 of those cleanup cases were still open when the snapshot was compiled.

That works out to 47.1 tanks in service per 10,000 residents, well above the Iowa average of 22.3 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 Monona County

Paste an address to map every registered tank and reported leak within a mile — distances in feet, cleanup statuses, and an A–F screening grade. Free, no login.

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Frequently asked questions

How many underground storage tanks are in Monona County, IA?

The EPA UST Finder snapshot lists 90 registered UST facilities in Monona County with 43 tanks currently in service, 195 closed or removed tanks, and 6 temporarily out of service.

How many fuel leaks have been reported in Monona County?

41 releases from underground storage tanks are on record for Monona County. 34 (83%) reached No Further Action status, while 7 cleanup cases remained open in the snapshot.

How do I check a specific address in Monona County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Monona 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 Iowa DNR UST Program.

Verify with the state

The live regulatory record for any Monona County facility or leak case is held by the Iowa DNR UST Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Iowa

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