County file — IL
Underground Storage Tanks in Jefferson County, IL — 194 facilities, 150 leak records
What the EPA UST Finder snapshot (2018–2021 state data) shows for Jefferson County, population 38,462.
Jefferson County has 194 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 99 tanks in service and 423 tanks that have been closed or removed. Over the life of the program, 150 fuel releases were reported here; 113 (75% of records) were investigated and closed with No Further Action, and 37 of those cleanup cases were still open when the snapshot was compiled.
That works out to 25.7 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.
Check any address in Jefferson County
Paste an address to map every registered tank and reported leak within a mile — distances in feet, cleanup statuses, and an A–F screening grade. Free, no login.
Screen an addressFrequently asked questions
How many underground storage tanks are in Jefferson County, IL?
The EPA UST Finder snapshot lists 194 registered UST facilities in Jefferson County with 99 tanks currently in service, 423 closed or removed tanks, and 0 temporarily out of service.
How many fuel leaks have been reported in Jefferson County?
150 releases from underground storage tanks are on record for Jefferson County. 113 (75%) reached No Further Action status, while 37 cleanup cases remained open in the snapshot.
How do I check a specific address in Jefferson County?
Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Jefferson 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 Jefferson 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
- Henderson County 38 fac · 14 leaks
- Henry County 246 fac · 157 leaks
- Iroquois County 194 fac · 98 leaks
- Jackson County 185 fac · 140 leaks
- Jasper County 51 fac · 37 leaks
- Jersey County 62 fac · 42 leaks
- Jo Daviess County 131 fac · 91 leaks
- Johnson County 50 fac · 33 leaks
- Kane County 900 fac · 805 leaks
- Kankakee County 320 fac · 168 leaks