UST Check → counties → Michigan → Cass
Underground storage tanks & leak sites in Cass 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.
196registered tank facilities
76open tanks
439closed tanks
94leak incidents on record
36cleanups still open
36 leak cleanups in
Cass 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 |
|---|---|---|---|---|
| KB Village Express #81 | CASSOPOLIS | 6 / 0 | Open UST(s) | MI2188 |
| Chan Petroleum Inc | NILES | 5 / 0 | Open UST(s) | MI12556 |
| TSB Inc | DOWAGIAC | 5 / 0 | Open UST(s) | MI13320 |
| Marcellus Shell | MARCELLUS | 4 / 0 | Open UST(s) | MI9962 |
| Pri Mart Quik Shop #6 | DOWAGIAC | 4 / 0 | Open UST(s) | MI15222 |
| Steinmans Inc | DOWAGIAC | 4 / 0 | Open UST(s) | MI33078 |
| Mini Mart Marathon Dowagiac | DOWAGIAC | 4 / 0 | Open UST(s) | MI9401 |
| Appolo Marine | LAWTON | 4 / 0 | Open UST(s) | MI9270 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| True's Service | Dowagiac | 2014-07-25 | Waste Oil | MIC-0083-14 |
| Pro-Quick Mart, Cassopolis | Cassopolis | 2009-09-15 | Gasoline,Diesel | MIC-0145-09 |
| Seven Day Express | Vandalia | 2008-09-23 | Diesel | MIC-0214-08 |
| Blue Fin Marina | DOWAGIAC | 2008-06-18 | Gasoline,Gasoline | MIC-0007-09 |
| Porkys Party Place | Cassopolis | 2007-01-22 | — | MIC-2281-90 |
| Shell Speed-Mart | Cassopolis | 2004-01-26 | Unknown,Unknown,Unknown,Unknown,Unknown | MIC-0039-04 |
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 196 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 36 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