UST Check → counties → Texas → Frio
Underground storage tanks & leak sites in Frio County, TX
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.
58registered tank facilities
71open tanks
94closed tanks
20leak incidents on record
3cleanups still open
3 leak cleanups in
Frio 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 |
|---|---|---|---|---|
| PETRO STOPPING CENTER 394 | PEARSALL | 6 / 0 | Open UST(s) | TX123842 |
| ROAD RANGER 270 | MOORE | 5 / 0 | Open UST(s) | TX121054 |
| FRIO SELF SERVE | DILLEY | 4 / 3 | Open UST(s) | TX70279 |
| BIGS 303 | DILLEY | 4 / 0 | Open UST(s) | TX69354 |
| TEX BEST TRAVEL CENTER 506 | DILLEY | 4 / 0 | Open UST(s) | TX123596 |
| DILLEY TRUCK STOP | DILLEY | 4 / 0 | Open UST(s) | TX132072 |
| SHAMROCK SERVICE CENTER | PEARSALL | 4 / 0 | Open UST(s) | TX67103 |
| DILLEY FOOD MART | — | 4 / 0 | Open UST(s) | TX65091 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| FORMER CHAPARRAL MINI MART | PEARSALL | 2011-08-24 | — | TX118711 |
| WOLF CAR CARE | PEARSALL | 2005-04-04 | — | TX117188 |
| PETTY OIL CO BULK PLANT | PEARSALL | 1997-04-16 | — | TX112242 |
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 58 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 3 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