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County file — IA

Underground Storage Tanks in Dubuque County, IA — 346 facilities, 156 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Dubuque County, population 100,058.

346UST facilities
205tanks in service
766closed tanks
156leak records
25open cases
130no further action

Dubuque County has 346 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 205 tanks in service and 766 tanks that have been closed or removed. Over the life of the program, 156 fuel releases were reported here; 130 (83% of records) were investigated and closed with No Further Action, and 25 of those cleanup cases were still open when the snapshot was compiled.

That works out to 20.5 tanks in service per 10,000 residents, below 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 Dubuque County, IA?

The EPA UST Finder snapshot lists 346 registered UST facilities in Dubuque County with 205 tanks currently in service, 766 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Dubuque County?

156 releases from underground storage tanks are on record for Dubuque County. 130 (83%) reached No Further Action status, while 25 cleanup cases remained open in the snapshot.

How do I check a specific address in Dubuque County?

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