UST Check → counties → Michigan → Mackinac
Underground storage tanks & leak sites in Mackinac 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.
126registered tank facilities
58open tanks
324closed tanks
76leak incidents on record
32cleanups still open
32 leak cleanups in
Mackinac 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 |
|---|---|---|---|---|
| Autore Oil Co. Bulk Plant | CEDARVILLE | 6 / 0 | Open UST(s) | MI42137 |
| Holiday Stationstore #204 | SAINT IGNACE | 5 / 3 | Open UST(s) | MI12687 |
| West US-2 Shell | SAINT IGNACE | 4 / 8 | Open UST(s) | MI12150 |
| St. Ignace Truck Stop | SAINT IGNACE | 3 / 8 | Open UST(s) | MI11423 |
| Curtis Service | CURTIS | 3 / 7 | Open UST(s) | MI34640 |
| Cedarville Builk Plant | CEDARVILLE | 3 / 4 | Open UST(s) | MI15706 |
| St Ignace Marina | SAINT IGNACE | 3 / 1 | Open UST(s) | MI20283 |
| St. Ignace Downtown | SAINT IGNACE | 3 / 0 | Open UST(s) | MI12007 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| West US-2 Shell | St Ignace | 2016-12-14 | Gasoline,Gasoline,Gasoline,Gasoline | MIC-0040-17 |
| West US-2 Shell | St Ignace | 2015-02-25 | Gasoline | MIC-0025-15 |
| Former Yukon Resort | St Ignace | 2011-08-08 | Gasoline | MIC-0114-11 |
| Slagg's Auto Service | St Ignace | 2006-02-21 | Unknown | MIC-0310-06 |
| Mackinac County Road Commission | MORAN | 2004-04-14 | Diesel,Gasoline | MIC-0141-04 |
| Smiths Standard | Engadine | 2002-12-11 | Gasoline,Gasoline | MIC-0692-02 |
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 126 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 32 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