UST Check → counties → Colorado → Broomfield
Underground storage tanks & leak sites in Broomfield County, CO
Every figure below is from EPA UST Finder — the EPA-compiled national registry of state-reported underground storage tanks — county aggregates as published by EPA.
68registered tank facilities
63open tanks
113closed tanks
70leak incidents on record
6cleanups still open
6 leak cleanups in
Broomfield County are still open — the state has not closed the case.
An open cleanup near a property you're buying or lending on is a findable, checkable fact: it appears in a
per-address screen with distance and the registry record.
Largest registered facilities
By open-tank count, from the facility-level registry. Every fact is attributed to the EPA record (linked ID); something wrong — use the correction path in the footer and we'll fix or remove it promptly.
| Facility | City | Open / closed tanks | Status | EPA record |
|---|---|---|---|---|
| Broomfield Plaza 66 | Broomfield | 4 / 0 | Open UST(s) | CO4057 |
| Midway 66 | Broomfield | 4 / 0 | Open UST(s) | CO9123 |
| Costco Gasoline #629 | Thornton | 4 / 0 | Open UST(s) | CO18124 |
| Circle K Store #2709873 | Broomfield | 3 / 5 | Open UST(s) | CO6571 |
| Alta #6140 | Broomfield | 3 / 4 | Open UST(s) | CO2502 |
| Twin Star Energy #521 | Broomfield | 3 / 3 | Open UST(s) | CO6479 |
| Tri State Metro Airport Hangar | Broomfield | 3 / 0 | Open UST(s) | CO7935 |
| Circle K Store #2709894 | Broomfield | 3 / 0 | Open UST(s) | CO15227 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Empire 3596 | Broomfield | 2017-05-23 | — | CO12757 |
| Durango Market LLC | Broomfield | 2014-09-24 | — | CO12121 |
| 7-Eleven #27551 | Broomfield | 2012-03-08 | — | CO11615 |
| Circle K Store #2709873 | Broomfield | 2011-05-02 | — | CO11429 |
| Broomfield Fueling Sta | Broomfield | 2000-05-14 | — | CO9507 |
| Phillips 66 #27244 | Broomfield | 1995-03-02 | — | CO5815 |
What this means if you're buying or lending here
- "Closed" ≠ clean. A closed tank was taken out of service per the registry — many were closed without soil testing, especially before the late 1990s.
- The registry is incomplete by design. Tanks removed before 1986 and most residential heating-oil tanks were never registered. A county with 68 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 6 cases in this county are still open; contamination may still be under investigation or remediation — distance from a specific parcel is what matters, and that's a per-address question.
Screen a specific property
This page covers the county. A purchase or loan decision needs the registry around one address: registered tanks at the parcel, every facility within 500 and 1,500 ft, leak cleanups with status and distance — each line cited to the official record.
Screen an address — $49 How it worksThis is a screen of EPA-registered tank and leak records, not an environmental site assessment. State registries are incomplete by design: tanks removed before 1986 and most residential heating-oil tanks were never registered, so a clean screen cannot prove the absence of a tank. "Closed" means a tank was taken out of service per the registry — it does not certify that no contamination remains.
source: EPA UST Finder EPA data vintage 2024-12-04 computed 2026-06-12