UST Check → counties → South Dakota → Corson
Underground storage tanks & leak sites in Corson County, SD
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.
60registered tank facilities
21open tanks
136closed tanks
45leak incidents on record
—cleanups still open
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 |
|---|---|---|---|---|
| Rock Energy (FKA FUO McLaughlin) | Mc Laughlin | 5 / 9 | Open UST(s) | 4040020 |
| FARMERS UNION OIL CO | MCLAUGHLIN | 4 / 5 | Open UST(s) | SD20-00018 |
| McIntosh Facility (DOT) | Mc Intosh | 2 / 5 | Open UST(s) | 4040016 |
| FARMERS UNION OIL COMPANY | MCLAUGHLIN | 2 / 3 | Open UST(s) | SD20-00003 |
| SD DEPT OF TRANSPORTATION | MCINTOSH | 2 / 3 | Open UST(s) | SD20-00010 |
| STANDING ROCK HOUSING AUTHORITY | MCLAUGHLIN | 1 / 1 | Open UST(s) | SD20-00042 |
| Standing Rock Housing Authority | Mc Laughlin | 1 / 1 | Open UST(s) | 4040007 |
| Procida Conoco/Farmers Union Oil Company | Mc Laughlin | 0 / 6 | Closed UST(s) | 4040009 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Rock Energy (FKA FUO McLaughlin) | Mc Laughlin | 2024-09-09 | Unknown | Sept 2024 Release |
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 60 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. Where a cleanup is 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