UST Check → counties → Ohio → Hardin
Underground storage tanks & leak sites in Hardin 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.
69registered tank facilities
68open tanks
126closed tanks
85leak incidents on record
5cleanups still open
5 leak cleanups in
Hardin 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 |
|---|---|---|---|---|
| JUMPIN JIM'S MARATHON | KENTON | 6 / 0 | Open UST(s) | OH33004103 |
| KENTON MARATHON | KENTON | 5 / 0 | Open UST(s) | OH33000077 |
| Martin's Meats (Marathon) | FOREST | 5 / 0 | Open UST(s) | OH33000016 |
| HERITAGE CO-OP | KENTON | 4 / 0 | Open UST(s) | OH33009772 |
| FUEL MART #626 | KENTON | 4 / 0 | Open UST(s) | OH33000050 |
| MARATHON | KENTON | 4 / 0 | Open UST(s) | OH33000092 |
| ADA MARATHON | ADA | 4 / 0 | Open UST(s) | OH33002147 |
| H & T CHAHAL LLC | RIDGEWAY | 4 / 0 | Open UST(s) | OH33004638 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| SPEEDWAY #8520 | ADA | 2017-02-22 | — | OH33000020-N00004 |
| DUNKIRK SOUTH SIDE SIX | DUNKIRK | 2014-09-15 | — | OH33002141-N00002 |
| MIKE'S PARTY SHOP | ADA | 1993-10-25 | — | OH33000041-N00001 |
| DUNKIRK SOUTH SIDE SIX | DUNKIRK | 1991-04-12 | — | OH33002141-N00001 |
| PFEIFFER STAT GENERAL STORE | KENTON | 1991-03-23 | — | OH33009757-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 69 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