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County file — IL

Underground Storage Tanks in Mercer County, IL — 92 facilities, 36 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Mercer County, population 16,254.

92UST facilities
42tanks in service
175closed tanks
36leak records
19open cases
17no further action

Mercer County has 92 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 42 tanks in service and 175 tanks that have been closed or removed. Over the life of the program, 36 fuel releases were reported here; 17 (47% of records) were investigated and closed with No Further Action, and 19 of those cleanup cases were still open when the snapshot was compiled.

That works out to 25.8 tanks in service per 10,000 residents, well above the Illinois average of 13.7 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.

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Frequently asked questions

How many underground storage tanks are in Mercer County, IL?

The EPA UST Finder snapshot lists 92 registered UST facilities in Mercer County with 42 tanks currently in service, 175 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Mercer County?

36 releases from underground storage tanks are on record for Mercer County. 17 (47%) reached No Further Action status, while 19 cleanup cases remained open in the snapshot.

How do I check a specific address in Mercer County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Mercer 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 Illinois EPA LUST Program / OSFM.

Verify with the state

The live regulatory record for any Mercer County facility or leak case is held by the Illinois EPA LUST Program / OSFM. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Illinois

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