UST Check → counties → Arizona → Santa Cruz
Underground storage tanks & leak sites in Santa Cruz County, AZ
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.
82registered tank facilities
55open tanks
178closed tanks
66leak incidents on record
6cleanups still open
6 leak cleanups in
Santa Cruz 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 |
|---|---|---|---|---|
| FASTRIP #9906/9907 | NOGALES | 7 / 4 | Open UST(s) | AZ0-001117 |
| GRAND CHEVRON | NOGALES | 4 / 1 | Open UST(s) | AZ0-004914 |
| CIRCLE K #2701772 | NOGALES | 3 / 0 | Open UST(s) | AZ0-001476 |
| RIO RICO SERVICE CENTER INC | RIO RICO | 3 / 0 | Open UST(s) | AZ0-006291 |
| CIRCLE K #745 | NOGALES | 2 / 2 | Open UST(s) | AZ0-001298 |
| CIRCLE K #916 | NOGALES | 2 / 2 | Open UST(s) | AZ0-001343 |
| PATS GAS & SERVICES | PATAGONIA | 2 / 2 | Open UST(s) | AZ0-003922 |
| CIRCLE K #259 | NOGALES | 2 / 2 | Open UST(s) | AZ0-001213 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| BIG ART'S UNION 26 | NOGALES | 2018-05-09 | Gasoline | AZ0-008542-5710.02 |
| CIRCLE K #745 | NOGALES | 2018-03-16 | Gasoline (PUL) | AZ0-001298-3489.04 |
| AC'S TRUCK STOP | NOGALES | 2016-12-16 | Diesel | AZ0-003526-2497.04 |
| FIESTA MARKET #1 | NOGALES | 2016-10-21 | Gasoline | AZ0-006402-5670.01 |
| ED'S PARKING & STORAGE | NOGALES | 2002-01-07 | Gasoline | AZ0-002727-5272.01 |
| ED'S PARKING & STORAGE | NOGALES | 2002-01-07 | Gasoline | AZ0-002727-5272.02 |
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 82 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