TankCheck

TankCheck / States / Illinois

County file — IL

Underground Storage Tanks in Knox County, IL — 227 facilities, 142 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Knox County, population 51,791.

227UST facilities
107tanks in service
447closed tanks
142leak records
47open cases
95no further action

Knox County has 227 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 107 tanks in service and 447 tanks that have been closed or removed. Over the life of the program, 142 fuel releases were reported here; 95 (67% of records) were investigated and closed with No Further Action, and 47 of those cleanup cases were still open when the snapshot was compiled.

That works out to 20.7 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 Knox County, IL?

The EPA UST Finder snapshot lists 227 registered UST facilities in Knox County with 107 tanks currently in service, 447 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Knox County?

142 releases from underground storage tanks are on record for Knox County. 95 (67%) reached No Further Action status, while 47 cleanup cases remained open in the snapshot.

How do I check a specific address in Knox County?

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