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County file — AZ

Underground Storage Tanks in Coconino County, AZ — 486 facilities, 492 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Coconino County, population 142,240.

486UST facilities
290tanks in service
1,265closed tanks
492leak records
39open cases
438no further action

Coconino County has 486 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 290 tanks in service and 1,265 tanks that have been closed or removed. Over the life of the program, 492 fuel releases were reported here; 438 (89% of records) were investigated and closed with No Further Action, and 39 of those cleanup cases were still open when the snapshot was compiled.

That works out to 20.4 tanks in service per 10,000 residents, well above the Arizona average of 8.6 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 Coconino County, AZ?

The EPA UST Finder snapshot lists 486 registered UST facilities in Coconino County with 290 tanks currently in service, 1,265 closed or removed tanks, and 0 temporarily out of service.

How many fuel leaks have been reported in Coconino County?

492 releases from underground storage tanks are on record for Coconino County. 438 (89%) reached No Further Action status, while 39 cleanup cases remained open in the snapshot.

How do I check a specific address in Coconino County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Coconino 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 ADEQ UST Program.

Verify with the state

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

Nearby countys in Arizona

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