UST Check → counties → Montana → Musselshell
Underground storage tanks & leak sites in Musselshell 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.
46registered tank facilities
15open tanks
104closed tanks
26leak incidents on record
5cleanups still open
5 leak cleanups in
Musselshell 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 |
|---|---|---|---|---|
| CONOCO CONVENIENCE CENTER | ROUNDUP | 7 / 5 | Open UST(s) | MT3305030 |
| EXPRESS CENTER CONVENIENCE STORE | ROUNDUP | 6 / 0 | Open UST(s) | MT3306612 |
| JAKES GARAGE | MELSTONE | 2 / 2 | Open UST(s) | MT3301481 |
| FARMERS UNION OIL CO ROUNDUP | ROUNDUP | 0 / 9 | Closed UST(s) | MT3300047 |
| ROUNDUP CAR CARE | ROUNDUP | 0 / 8 | Closed UST(s) | MT3301083 |
| PETRO PRODUCTS CO | ROUNDUP | 0 / 7 | Closed UST(s) | MT3305808 |
| MDOT ROUNDUP SITE RTE 61 | ROUNDUP | 0 / 4 | Closed UST(s) | MT3304068 |
| MUSSELSHELL VALLEY EQUIP CO MAIN ST | ROUNDUP | 0 / 4 | Closed UST(s) | MT3304855 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| BLUE SKY DISTRIBUTING #2963 | Melstone | 1996-07-09 | — | MT2963 |
| FORMER PEPCO #1529 | Roundup | 1992-12-17 | — | MT1529 |
| DJS EXXON #3082 | Roundup | 1992-09-10 | — | MT3082 |
| MAIN STREET CONOCO #506 | Roundup | 1990-11-01 | — | MT506 |
| FARMERS UNION OIL CO ROUNDUP #235 | Roundup | 1990-02-12 | — | MT235 |
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 46 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 5 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