UST Check → counties → Michigan → Washtenaw
Underground storage tanks & leak sites in Washtenaw County, MI
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.
707registered tank facilities
563open tanks
2,044closed tanks
717leak incidents on record
169cleanups still open
169 leak cleanups in
Washtenaw 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 |
|---|---|---|---|---|
| Chelsea Proving Grounds | CHELSEA | 33 / 45 | Open UST(s) | MI19407 |
| Vehicle & Fuels Emission Laboratory | ANN ARBOR | 14 / 11 | Open UST(s) | MI132 |
| Manchester Express Stop | MANCHESTER | 14 / 6 | Open UST(s) | MI11470 |
| Ann Arbor Trans Authority | ANN ARBOR | 9 / 2 | Open UST(s) | MI15244 |
| Crystal Flash Ypsilanti | YPSILANTI | 8 / 1 | Open UST(s) | MI15952 |
| Pilot Travel Center #296 | DEXTER | 8 / 0 | Open UST(s) | MI36475 |
| Ann Arbor Travel Center | DEXTER | 7 / 6 | Open UST(s) | MI17737 |
| Pilot Travel Center #021 | DEXTER | 7 / 6 | Open UST(s) | MI17539 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Chelsea Proving Grounds | Chelsea | 2018-07-24 | Gasoline | MIC-0130-18 |
| Melvin & Betty Lewis | Ann Arbor | 2018-07-02 | Other,Other,Other,Other | MIC-0146-18 |
| 10795 Whittaker LLC (FAC10000068) | Ypsilanti | 2017-08-31 | Kerosene,Gasoline,Gasoline,Gasoline,Gasoline | MIC-0215-17 |
| Mitsubishi Motors R & D of America Inc | Ann Arbor | 2017-07-31 | Waste Oil | MIC-0190-17 |
| Former Carwash Building (FAC10000003) | Ann Arbor | 2017-01-20 | Unknown,Unknown,Unknown | MIC-0135-17 |
| Former Michigan Avenue Filling Station #3 | Saline | 2016-10-18 | Heating Oil | MIC-0081-17 |
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 707 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 169 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