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County file — CO

Underground Storage Tanks in Arapahoe County, CO — 803 facilities, 753 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Arapahoe County, population 637,891.

803UST facilities
620tanks in service
1,680closed tanks
753leak records
59open cases
694no further action

Arapahoe County has 803 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 620 tanks in service and 1,680 tanks that have been closed or removed, plus 6 temporarily out of service. Over the life of the program, 753 fuel releases were reported here; 694 (92% of records) were investigated and closed with No Further Action, and 59 of those cleanup cases were still open when the snapshot was compiled.

That works out to 9.7 tanks in service per 10,000 residents, below the Colorado average of 12.5 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 Arapahoe County, CO?

The EPA UST Finder snapshot lists 803 registered UST facilities in Arapahoe County with 620 tanks currently in service, 1,680 closed or removed tanks, and 6 temporarily out of service.

How many fuel leaks have been reported in Arapahoe County?

753 releases from underground storage tanks are on record for Arapahoe County. 694 (92%) reached No Further Action status, while 59 cleanup cases remained open in the snapshot.

How do I check a specific address in Arapahoe County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Arapahoe 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 Colorado OPS Petroleum Program.

Verify with the state

The live regulatory record for any Arapahoe County facility or leak case is held by the Colorado OPS Petroleum Program. Newer records than this 2018–2021 snapshot may exist.

Nearby countys in Colorado

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