UST Check → counties → Ohio → Ottawa
Underground storage tanks & leak sites in Ottawa 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.
166registered tank facilities
128open tanks
322closed tanks
233leak incidents on record
17cleanups still open
17 leak cleanups in
Ottawa 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 |
|---|---|---|---|---|
| FOXHAVEN MARINA, INC. | PORT CLINTON | 5 / 2 | Open UST(s) | OH62000001 |
| PORT CLINTON SHELL HY MILLER | PORT CLINTON | 5 / 0 | Open UST(s) | OH62000079 |
| LUCKEY FARMERS, INC. | OAK HARBOR | 5 / 0 | Open UST(s) | OH62002274 |
| MARBLEHEAD SUNOCO | MARBLEHEAD | 5 / 0 | Open UST(s) | OH62000132 |
| 070 P C Marathon | PORT CLINTON | 5 / 0 | Open UST(s) | OH62000098 |
| DOLPH OIL CORP. | ELMORE | 4 / 1 | Open UST(s) | OH62000068 |
| 081 Countyline Sunoco | PORT CLINTON | 4 / 0 | Open UST(s) | OH62004720 |
| SPEEDWAY #5410 | PORT CLINTON | 4 / 0 | Open UST(s) | OH62009129 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| LUCKEY FARMERS, INC. | OAK HARBOR | 2018-09-06 | — | OH62002274-N00001 |
| DOLPH OIL CORP | ELMORE | 2017-09-18 | — | OH62000068-N00005 |
| RT 53 BP | PORT CLINTON | 2016-08-29 | — | OH62000142-N00003 |
| KEN'S SUNOCO | GENOA | 2005-07-19 | — | OH62004010-N00001 |
| DAVIS-BESSE NUCLEAR PLANT | OAK HARBOR | 1998-08-21 | — | OH62000072-N00001 |
| TIM MCCANN | PORT CLINTON | 1997-12-19 | — | OH62002254-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 166 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 17 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