UST Check → counties → Ohio → Mercer
Underground storage tanks & leak sites in Mercer County, OH
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.
96registered tank facilities
94open tanks
164closed tanks
104leak incidents on record
2cleanups still open
2 leak cleanups in
Mercer 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 |
|---|---|---|---|---|
| CW SERVICE BULK PLANT | COLDWATER | 7 / 0 | Open UST(s) | OH54000045 |
| ROCKFORD ROAD DOG LLC | ROCKFORD | 5 / 0 | Open UST(s) | OH54004685 |
| CELINA PARTY MART | CELINA | 4 / 5 | Open UST(s) | OH54000137 |
| HEMMELGARN MARATHON | ST HENRY | 4 / 2 | Open UST(s) | OH54008403 |
| SUNOCO 204 | CELINA | 4 / 0 | Open UST(s) | OH54000099 |
| ROCKFORD SHOPPERSTOP LLC | ROCKFORD | 4 / 0 | Open UST(s) | OH54000119 |
| FT RECOVERY PARTY MART (SHELL) | FT RECOVERY | 4 / 0 | Open UST(s) | OH54000125 |
| MENDON MOTOR INN MARATHON | MENDON | 3 / 4 | Open UST(s) | OH54003258 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| CHICKASAW GARAGE | CHICKASAW | 1991-07-31 | — | OH54009848-N00001 |
| CHICKASAW QWIK STOP | CHICKASAW | 1991-07-31 | — | OH54009280-N00001 |
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 96 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 2 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