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County file — IL

Underground Storage Tanks in Grundy County, IL — 143 facilities, 96 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Grundy County, population 51,760.

143UST facilities
122tanks in service
297closed tanks
96leak records
28open cases
68no further action

Grundy County has 143 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 122 tanks in service and 297 tanks that have been closed or removed. Over the life of the program, 96 fuel releases were reported here; 68 (71% of records) were investigated and closed with No Further Action, and 28 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, 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 Grundy County, IL?

The EPA UST Finder snapshot lists 143 registered UST facilities in Grundy County with 122 tanks currently in service, 297 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Grundy County?

96 releases from underground storage tanks are on record for Grundy County. 68 (71%) reached No Further Action status, while 28 cleanup cases remained open in the snapshot.

How do I check a specific address in Grundy County?

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