UST Check → counties → North Dakota → McHenry
Underground storage tanks & leak sites in McHenry County, ND
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.
66registered tank facilities
39open tanks
126closed tanks
15leak incidents on record
2cleanups still open
2 leak cleanups in
McHenry 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 |
|---|---|---|---|---|
| Farmers Union Oil C Store | Velva ND 58790- | 6 / 0 | Open UST(s) | ND10825 |
| Verendrye Electric Cooperative | Velva ND 58790- | 5 / 3 | Open UST(s) | ND954 |
| Farmers Union Oil Company | Drake ND 58736- | 4 / 4 | Open UST(s) | ND49 |
| Minot Air Force Base | Balfour ND 58712- | 2 / 2 | Open UST(s) | ND1560 |
| Smette Oil Inc | Upham ND 58789- | 2 / 0 | Open UST(s) | ND291 |
| D K Service | Granville ND 58741 | 1 / 3 | Open UST(s) | ND2512 |
| Minot Air Force Base | Voltaire ND 58792- | 1 / 1 | Open UST(s) | ND1588 |
| Minot Air Force Base | Velva ND 58790- | 1 / 1 | Open UST(s) | ND1592 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Farmers Union Oil | Velva ND 58790 | not reported | — | ND691 |
| Ziegler Oil Company | Drake ND 58736 | not reported | — | ND942 |
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 66 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 2 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