County file — OR

Underground Storage Tanks in Marion County, OR — 774 facilities, 725 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Marion County, population 337,117.

774UST facilities
393tanks in service
1,750closed tanks
725leak records
89open cases
636no further action

Marion County has 774 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 393 tanks in service and 1,750 tanks that have been closed or removed, plus 30 temporarily out of service. Over the life of the program, 725 fuel releases were reported here; 636 (88% of records) were investigated and closed with No Further Action, and 89 of those cleanup cases were still open when the snapshot was compiled.

That works out to 11.7 tanks in service per 10,000 residents, below the Oregon average of 12.9 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 Marion 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 Marion County, OR?

The EPA UST Finder snapshot lists 774 registered UST facilities in Marion County with 393 tanks currently in service, 1,750 closed or removed tanks, and 30 temporarily out of service.

How many fuel leaks have been reported in Marion County?

725 releases from underground storage tanks are on record for Marion County. 636 (88%) reached No Further Action status, while 89 cleanup cases remained open in the snapshot.

How do I check a specific address in Marion County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Marion 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 Oregon DEQ UST Program.

Verify with the state

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

Nearby countys in Oregon

← All Oregon counts