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County file — IL

Underground Storage Tanks in Union County, IL — 78 facilities, 41 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Union County, population 17,914.

78UST facilities
33tanks in service
179closed tanks
41leak records
11open cases
30no further action

Union County has 78 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 33 tanks in service and 179 tanks that have been closed or removed. Over the life of the program, 41 fuel releases were reported here; 30 (73% of records) were investigated and closed with No Further Action, and 11 of those cleanup cases were still open when the snapshot was compiled.

That works out to 18.4 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 Union County, IL?

The EPA UST Finder snapshot lists 78 registered UST facilities in Union County with 33 tanks currently in service, 179 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Union County?

41 releases from underground storage tanks are on record for Union County. 30 (73%) reached No Further Action status, while 11 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 Illinois EPA LUST Program / OSFM.

Verify with the state

The live regulatory record for any Union 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

← All Illinois counts