UST Check → counties → Colorado → Alamosa
Underground storage tanks & leak sites in Alamosa 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.
67registered tank facilities
30open tanks
155closed tanks
50leak incidents on record
6cleanups still open
6 leak cleanups in
Alamosa 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 |
|---|---|---|---|---|
| Loaf N Jug #10 | Alamosa | 4 / 0 | Open UST(s) | CO10296 |
| Alta Convenience #3501 | Alamosa | 3 / 3 | Open UST(s) | CO3604 |
| Alta Convenience #3301 | Alamosa | 3 / 2 | Open UST(s) | CO1689 |
| Alta Convenience #5725 | Alamosa | 3 / 0 | Open UST(s) | CO393 |
| Alta Convenience #5601 | Alamosa | 3 / 0 | Open UST(s) | CO8529 |
| Hooper Junction | Hooper | 3 / 0 | Open UST(s) | CO425 |
| Great Sand Dunes Oasis | Mosca | 2 / 2 | Open UST(s) | CO433 |
| Safeway Fuel Center #1681 | Alamosa | 2 / 1 | Open UST(s) | CO10276 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Alta Convenience #5725 | Alamosa | 2018-08-15 | — | CO13109 |
| Alta Convenience#3501 | Alamosa | 2016-02-01 | — | CO12436 |
| Alta Convenience #5601 | Alamosa | 2015-08-27 | — | CO12334 |
| Alta Convenience #3301 | Alamosa | 2015-08-27 | — | CO12333 |
| Winco Standard | Alamosa | 1993-02-17 | — | CO3647 |
| CDOT Alamosa | Alamosa | 1989-09-14 | — | CO1530 |
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 67 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