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County file — IA

Underground Storage Tanks in Marshall County, IA — 204 facilities, 80 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Marshall County, population 41,091.

204UST facilities
97tanks in service
391closed tanks
80leak records
5open cases
75no further action

Marshall County has 204 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 97 tanks in service and 391 tanks that have been closed or removed. Over the life of the program, 80 fuel releases were reported here; 75 (94% of records) were investigated and closed with No Further Action, and 5 of those cleanup cases were still open when the snapshot was compiled.

That works out to 23.6 tanks in service per 10,000 residents, 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.

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Frequently asked questions

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

The EPA UST Finder snapshot lists 204 registered UST facilities in Marshall County with 97 tanks currently in service, 391 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Marshall County?

80 releases from underground storage tanks are on record for Marshall County. 75 (94%) reached No Further Action status, while 5 cleanup cases remained open in the snapshot.

How do I check a specific address in Marshall County?

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