UST Check → counties → Montana → Prairie
Underground storage tanks & leak sites in Prairie County, MT
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.
21registered tank facilities
6open tanks
48closed tanks
22leak incidents on record
6cleanups still open
6 leak cleanups in
Prairie 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 |
|---|---|---|---|---|
| 4 CORNERS | TERRY | 3 / 7 | Open UST(s) | MT4006798 |
| FARMERS UNION OIL CO TERRY | TERRY | 3 / 5 | Open UST(s) | MT4006797 |
| MDOT TERRY | TERRY | 0 / 4 | Closed UST(s) | MT4002612 |
| FORT GENERAL TERRY EXXON | TERRY | 0 / 4 | Closed UST(s) | MT4004654 |
| BUFFALO RAPIDS IRRIGATION PROJECT | TERRY | 0 / 3 | Closed UST(s) | MT4003204 |
| R L TIBBETTS | TERRY | 0 / 3 | Closed UST(s) | MT4003735 |
| J RANCH INC | TERRY | 0 / 2 | Closed UST(s) | MT4006933 |
| UNIT 287 BUFFALO RAPIDS | FALLON | 0 / 2 | Closed UST(s) | MT4007746 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| PRAIRIE PETROLEUM BULK PLANT #3179 | Terry | 1997-05-28 | — | MT3179 |
| FARMERS UNION OIL BULK PLANT #4948 | Terry | 1995-05-26 | — | MT4948 |
| FARMERS UNION OIL BULK PLANT #2619 | Terry | 1995-05-26 | — | MT2619 |
| INTERSTATE CENEX #3203 | Terry | 1994-07-05 | — | MT3203 |
| FARMERS UNION OIL CO TERRY #208 | Terry | 1990-02-23 | — | MT208 |
| FARMERS UNION OIL CO TERRY #4335 | Terry | 1990-02-23 | — | MT4335 |
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 21 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