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TankCheck / States / Illinois

County file — IL

Underground Storage Tanks in McHenry County, IL — 536 facilities, 338 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for McHenry County, population 311,424.

536UST facilities
349tanks in service
1,177closed tanks
338leak records
68open cases
270no further action

McHenry County has 536 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 349 tanks in service and 1,177 tanks that have been closed or removed. Over the life of the program, 338 fuel releases were reported here; 270 (80% of records) were investigated and closed with No Further Action, and 68 of those cleanup cases were still open when the snapshot was compiled.

That works out to 11.2 tanks in service per 10,000 residents, below 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 McHenry County, IL?

The EPA UST Finder snapshot lists 536 registered UST facilities in McHenry County with 349 tanks currently in service, 1,177 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in McHenry County?

338 releases from underground storage tanks are on record for McHenry County. 270 (80%) reached No Further Action status, while 68 cleanup cases remained open in the snapshot.

How do I check a specific address in McHenry County?

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