TankCheck

TankCheck / States / Colorado

County file — CO

Underground Storage Tanks in Boulder County, CO — 417 facilities, 368 leak records

What the EPA UST Finder snapshot (2018–2021 state data) shows for Boulder County, population 328,355.

417UST facilities
273tanks in service
887closed tanks
368leak records
18open cases
350no further action

Boulder County has 417 registered underground storage tank facilities in the national snapshot — gas stations, fleet yards, and other regulated fuel sites — holding 273 tanks in service and 887 tanks that have been closed or removed, plus 6 temporarily out of service. Over the life of the program, 368 fuel releases were reported here; 350 (95% of records) were investigated and closed with No Further Action, and 18 of those cleanup cases were still open when the snapshot was compiled.

That works out to 8.3 tanks in service per 10,000 residents, well 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.

Check any address in Boulder 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 Boulder County, CO?

The EPA UST Finder snapshot lists 417 registered UST facilities in Boulder County with 273 tanks currently in service, 887 closed or removed tanks, and 6 temporarily out of service.

How many fuel leaks have been reported in Boulder County?

368 releases from underground storage tanks are on record for Boulder County. 350 (95%) reached No Further Action status, while 18 cleanup cases remained open in the snapshot.

How do I check a specific address in Boulder County?

Use the free TankCheck screening at https://tankcheckusa.site/ — paste any Boulder 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 Boulder 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

← All Colorado counts