UST Check → counties → Ohio → Darke
Underground storage tanks & leak sites in Darke 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.
131registered tank facilities
108open tanks
279closed tanks
175leak incidents on record
13cleanups still open
13 leak cleanups in
Darke 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 |
|---|---|---|---|---|
| SPEEDWAY #6327 | GREENVILLE | 6 / 0 | Open UST(s) | OH19000072 |
| CASEY'S GENERAL STORE | UNION CITY | 5 / 0 | Open UST(s) | OH19010008 |
| SPEEDWAY #9654 | GREENVILLE | 5 / 0 | Open UST(s) | OH19002573 |
| NEW MADISON MINI MART | NEW MADISON | 5 / 0 | Open UST(s) | OH19003597 |
| CASEY'S GENERAL STORE #3551 | ANSONIA | 4 / 4 | Open UST(s) | OH19003643 |
| DARRELL MARSHALL (SHELL) | BRADFORD | 4 / 4 | Open UST(s) | OH19007332 |
| HARVEST LAND CO-OP | GREENVILLE | 4 / 3 | Open UST(s) | OH19000084 |
| PAK-A-SAK #37 | ARCANUM | 4 / 0 | Open UST(s) | OH19000150 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| C. E. WRIGHT SONS, INC. | UNION CITY | 2013-08-23 | — | OH19004306-N00002 |
| VACANT (JIM'S UNION 76) | HOLLANSBURG | 2012-09-18 | — | OH19004687-N00001 |
| DILL OIL COMPANY (SHELL) | GREENVILLE | 2008-11-21 | — | OH19000010-N00001 |
| WARREN'S SUNOCO | UNION CITY | 2006-12-21 | — | OH19004286-N00001 |
| ARCANUM SERVICE CENTER | ARCANUM | 2002-01-07 | — | OH19000002-N00002 |
| RICHARD PETERS PROPERTY | NEW MADISON | 1997-09-17 | — | OH19002361-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 131 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 13 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