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County file — IA

Underground Storage Tanks in Union County, IA — 68 facilities, 39 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Union County, population 12,400.

68UST facilities
31tanks in service
128closed tanks
39leak records
3open cases
36no further action

Union County has 68 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 31 tanks in service and 128 tanks that have been closed or removed. Over the life of the program, 39 fuel releases were reported here; 36 (92% of records) were investigated and closed with No Further Action, and 3 of those cleanup cases were still open when the snapshot was compiled.

That works out to 25.0 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 Union County, IA?

The EPA UST Finder snapshot lists 68 registered UST facilities in Union County with 31 tanks currently in service, 128 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Union County?

39 releases from underground storage tanks are on record for Union County. 36 (92%) reached No Further Action status, while 3 cleanup cases remained open in the snapshot.

How do I check a specific address in Union County?

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