UST Check → counties → Texas → Duval
Underground storage tanks & leak sites in Duval 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.
51registered tank facilities
32open tanks
85closed tanks
21leak incidents on record
2cleanups still open
2 leak cleanups in
Duval 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 |
|---|---|---|---|---|
| 7-ELEVEN STORE 40911 | FREER | 5 / 0 | Open UST(s) | TX78536 |
| KWIK PANTRY 101 | — | 4 / 0 | Open UST(s) | TX38932 |
| CORNER STORE 0414 | FREER | 3 / 3 | Open UST(s) | TX74341 |
| 7-ELEVEN STORE 40918 | FREER | 3 / 3 | Open UST(s) | TX63883 |
| TIMES MARKET 314 | FREER | 3 / 1 | Open UST(s) | TX73036 |
| AYCOCK OIL | SAN DIEGO | 3 / 0 | Open UST(s) | TX57343 |
| BENAVIDES ISD | BENAVIDES | 2 / 0 | Open UST(s) | TX56602 |
| FRANK BARTON CONOCO | — | 2 / 0 | Open UST(s) | TX85216 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| FORMER ARNOLDS EXXON | FREER | 2009-03-27 | — | TX118063 |
| VELAU TEXACO | FREER | 1999-04-13 | — | TX114569 |
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 51 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 2 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