UST Check → counties → South Dakota → Oglala Lakota
Underground storage tanks & leak sites in Oglala Lakota 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.
79registered tank facilities
36open tanks
165closed tanks
60leak incidents on record
7cleanups still open
7 leak cleanups in
Oglala Lakota 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 |
|---|---|---|---|---|
| PINE RIDGE OIL CO INC | PINE RIDGE | 4 / 9 | Open UST(s) | SD65-00010 |
| Pine Ridge Oil Co. Inc. | Pine Ridge | 4 / 9 | Open UST(s) | 4070019 |
| BIG BAT'S CONOCO | PINE RIDGE | 4 / 0 | Open UST(s) | SD65-00026 |
| Big Bat's | Pine Ridge | 4 / 0 | Open UST(s) | 4070009 |
| Lil' Angel's | Kyle | 2 / 2 | Open UST(s) | 4070007 |
| Red Cloud Indian School | Pine Ridge | 2 / 1 | Open UST(s) | 4070002 |
| ANGEL'S | KYLE | 2 / 0 | Open UST(s) | SD65-00002 |
| REDDY MART | PINE RIDGE | 2 / 0 | Open UST(s) | SD65-00042 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Tank System Removal - Lil Angels Conv Store | Kyle | 2017-09-06 | Petroleum | SD2017.169 |
| Pine Ridge Oil Company - LUST Trust | Pine Ridge | 1992-04-29 | Petroleum | SD92.131 |
| Bennett County Coop - Line Leak | Batesland | 1986-06-27 | Gasoline | SD86.05 |
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 79 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 7 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