UST Check → counties → Ohio → Hamilton
Underground storage tanks & leak sites in Hamilton 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.
1,661registered tank facilities
1,150open tanks
3,695closed tanks
2,364leak incidents on record
155cleanups still open
155 leak cleanups in
Hamilton 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 |
|---|---|---|---|---|
| EMD Millipore Corporation | CINCINNATI | 15 / 0 | Open UST(s) | OH31001027 |
| GE Aviation | CINCINNATI | 10 / 58 | Open UST(s) | OH31001060 |
| TECHNO ADHESIVES CO. | CINCINNATI | 7 / 8 | Open UST(s) | OH31003702 |
| HEYOB ENERGY | HARRISON | 7 / 0 | Open UST(s) | OH31003987 |
| WARDWAY FUELS, INC. | CINCINNATI | 6 / 6 | Open UST(s) | OH31008078 |
| SPEEDWAY #7560 | HARRISON | 6 / 0 | Open UST(s) | OH31001802 |
| MIAMITOWN FOOD MART | MIAMITOWN | 6 / 0 | Open UST(s) | OH31000218 |
| UC SCIOTO HALL TANK FARM | CINCINNATI | 6 / 0 | Open UST(s) | OH31011085 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| GE Aviation | CINCINNATI | 2018-12-20 | — | OH31001060-N00011 |
| 2942 CENTRAL PARKWAY I LLC | CINCINNATI | 2018-12-04 | — | OH31000169-N00002 |
| NIVILLC | CINCINNATI | 2018-11-29 | — | OH31002000-N00001 |
| 3590 MADISON CINCINNATI LLC | CINCINNATI | 2018-11-09 | — | OH31001504-N00002 |
| BFR CINCINNATI DC LLC | CINCINNATI | 2018-11-06 | — | OH31008308-N00002 |
| WOODLAWN MARATHON | WOODLAWN | 2018-10-22 | — | OH31000058-N00002 |
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 1,661 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 155 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