TankCheck

TankCheck / States / Iowa

County file — IA

Underground Storage Tanks in Johnson County, IA — 308 facilities, 141 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Johnson County, population 147,657.

308UST facilities
213tanks in service
659closed tanks
141leak records
9open cases
132no further action

Johnson County has 308 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 213 tanks in service and 659 tanks that have been closed or removed. Over the life of the program, 141 fuel releases were reported here; 132 (94% of records) were investigated and closed with No Further Action, and 9 of those cleanup cases were still open when the snapshot was compiled.

That works out to 14.4 tanks in service per 10,000 residents, well below the Iowa average of 22.3 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 Johnson 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 address

Frequently asked questions

How many underground storage tanks are in Johnson County, IA?

The EPA UST Finder snapshot lists 308 registered UST facilities in Johnson County with 213 tanks currently in service, 659 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Johnson County?

141 releases from underground storage tanks are on record for Johnson County. 132 (94%) reached No Further Action status, while 9 cleanup cases remained open in the snapshot.

How do I check a specific address in Johnson County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Johnson 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 Iowa DNR UST Program.

Verify with the state

The live regulatory record for any Johnson County facility or leak case is held by the Iowa DNR UST Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Iowa

← All Iowa counts