UST Check → counties → Utah → Washington
Underground storage tanks & leak sites in Washington County, UT
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.
206registered tank facilities
250open tanks
389closed tanks
156leak incidents on record
16cleanups still open
16 leak cleanups in
Washington 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 |
|---|---|---|---|---|
| Shivwits Convenience Market | Ivins | 4 / 0 | Open UST(s) | 5030002 |
| Hecla Mining Apex Unit (Processing Plant) | Saint George | 0 / 1 | Closed UST(s) | 5030001 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| BLOOMINGTON MARKET | SAINT GEORGE | 2010-11-16 | — | UTMSM |
| ST GEORGE SEWER PLANT | SAINT GEORGE | 2008-03-12 | — | UTMIW |
| PREMIUM OIL #6 ( ST. GEORGE ) | SAINT GEORGE | 2004-12-13 | — | UTLXV |
| FREEWAY CHEVRON # 208910 (OLD TRI-MART #1063 ) | WASHINGTON | 2001-03-05 | — | UTLJC |
| SUNRISE MARKET | LA VERKIN | 2000-09-22 | — | UTLIP |
| RALLY STOP #6 | SAINT GEORGE | 1998-07-22 | — | UTKOI |
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 206 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 16 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