UST Check → counties → Montana → Yellowstone
Underground storage tanks & leak sites in Yellowstone 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.
540registered tank facilities
361open tanks
1,261closed tanks
472leak incidents on record
151cleanups still open
151 leak cleanups in
Yellowstone 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 LAUREL | LAUREL | 11 / 0 | Open UST(s) | MT5608710 |
| FLYING J INC BILLINGS | BILLINGS | 8 / 0 | Open UST(s) | MT5612585 |
| LYNCH FLYING SERVICE | BILLINGS | 7 / 7 | Open UST(s) | MT5607797 |
| LAUREL TRAVEL CENTER | LAUREL | 7 / 2 | Open UST(s) | MT5600626 |
| TOWN PUMP INC BILLINGS 4 | BILLINGS | 7 / 0 | Open UST(s) | MT6015104 |
| TOWN PUMP INC BILLINGS 3 | BILLINGS | 6 / 0 | Open UST(s) | MT6015023 |
| TOWN PUMP BILLINGS 11 | BILLINGS | 6 / 0 | Open UST(s) | MT6015297 |
| CARDLOCK #3 | BILLINGS | 5 / 16 | Open UST(s) | MT5601290 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| SOCO EXPRESS 15TH & BROADWATER #5261 | Billings | 2018-01-04 | — | MT5261 |
| JW ROYLANCE CONSTRUCTION INC #5235 | Laurel | 2017-07-25 | — | MT5235 |
| VIRDON PROP FRMR GAS STATION #5147 | Billings | 2016-11-02 | — | MT5147 |
| EXPRESS WAY #5138 | Huntley | 2016-05-27 | — | MT5138 |
| FIVE CORNERS QUIK STOP #5134 | Billings | 2016-04-20 | — | MT5134 |
| HOLIDAY #731 #5117 | Billings | 2015-11-30 | — | MT5117 |
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 540 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 151 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