UST Check → counties → Montana → Stillwater
Underground storage tanks & leak sites in Stillwater 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.
51registered tank facilities
41open tanks
113closed tanks
56leak incidents on record
16cleanups still open
16 leak cleanups in
Stillwater 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 |
|---|---|---|---|---|
| TOWN PUMP INC COLUMBUS UST | COLUMBUS | 10 / 4 | Open UST(s) | MT4808691 |
| ZIP TRIP 50 | PARK CITY | 9 / 5 | Open UST(s) | MT4808910 |
| FARMERS UNION TRADING CO | COLUMBUS | 5 / 9 | Open UST(s) | MT4803409 |
| ROCKIN J | ABSAROKEE | 5 / 0 | Open UST(s) | MT5613932 |
| VALLEY FARMERS SUPPLY SURE STOP | REED POINT | 3 / 0 | Open UST(s) | MT4801521 |
| KWIK STOP INC | PARK CITY | 2 / 2 | Open UST(s) | MT4806610 |
| NYE TRADING POST | FISHTAIL | 2 / 2 | Open UST(s) | MT4809647 |
| MDOT ROW FISHTAIL GENERAL STORE FHWA | FISHTAIL | 2 / 0 | Open UST(s) | MT4803599 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| PLATINUM MOTORS #4482 | Columbus | 2006-03-29 | — | MT4482 |
| AMERICAN ENTERPRISES INC #4357 | Absarokee | 2004-06-11 | — | MT4357 |
| MONTANA RAIL LINK #4036 | Columbus | 2001-07-24 | — | MT4036 |
| GITS CONOCO #4012 | Columbus | 2001-04-03 | — | MT4012 |
| DAVEY MOTOR CO #3900 | Columbus | 2000-01-17 | — | MT3900 |
| 7 DAY MART ART IS EVERYWHERE #3540 | Columbus | 1998-10-08 | — | MT3540 |
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. 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