UST Check → counties → Michigan → Sanilac
Underground storage tanks & leak sites in Sanilac 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.
214registered tank facilities
95open tanks
473closed tanks
141leak incidents on record
65cleanups still open
65 leak cleanups in
Sanilac 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 |
|---|---|---|---|---|
| Scott Phillips | MARLETTE | 6 / 0 | Open UST(s) | MI3903 |
| Marlette Oil & Gas | MARLETTE | 5 / 8 | Open UST(s) | MI14272 |
| Speedway #8400 | MARLETTE | 5 / 5 | Open UST(s) | MI21885 |
| Forward Enterprises #187 | CASS CITY | 5 / 0 | Open UST(s) | MI32961 |
| Sandusky Marathon | SANDUSKY | 5 / 0 | Open UST(s) | MI34892 |
| Red Barn Market #6 iInc | BROWN CITY | 4 / 3 | Open UST(s) | MI10357 |
| Sunrise Store #22 | LEXINGTON | 4 / 1 | Open UST(s) | MI20033 |
| Port Sanilac Party Store | PORT SANILAC | 4 / 0 | Open UST(s) | MI3831 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Former Family Dollar | Marlette | 2012-11-28 | Unknown | MIC-0020-13 |
| Brown City BP | Brown City | 2011-06-02 | Gasoline,Gasoline | MIC-0074-11 |
| Brians Repair | Peck | 2009-01-06 | Unknown | MIC-0025-09 |
| Citgo | Sandusky | 2005-06-09 | Gasoline,Gasoline,Gasoline | MIC-0184-05 |
| Speedy Q Market #243 | Marlette | 2004-01-21 | Used Oil | MIC-0061-04 |
| Brown City Sunoco | Brown City | 2003-05-23 | Gasoline,Gasoline | MIC-0218-03 |
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 214 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 65 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