UST Check → counties → South Dakota → Pennington
Underground storage tanks & leak sites in Pennington 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.
319registered tank facilities
295open tanks
682closed tanks
376leak incidents on record
16cleanups still open
16 leak cleanups in
Pennington 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 |
|---|---|---|---|---|
| FLYING J TRUCK PLAZA | RAPID CITY | 8 / 5 | Open UST(s) | SD02-00136 |
| PILOT TRAVEL CENTERS #918 | RAPID CITY | 8 / 0 | Open UST(s) | SD02-00259 |
| JMG BULK PLANT | RAPID CITY | 6 / 0 | Open UST(s) | SD02-00354 |
| LOVE'S TRAVEL STOP #602 | BOX ELDER | 6 / 0 | Open UST(s) | SD02-00367 |
| BIG D OIL COMPANY #24 | RAPID CITY | 6 / 0 | Open UST(s) | SD02-00074 |
| BIG D OIL COMPANY #54 | RAPID CITY | 6 / 0 | Open UST(s) | SD02-00357 |
| WALL AUTO LIVERY | WALL | 5 / 5 | Open UST(s) | SD02-00198 |
| COUNTRY STORE AT THE FORKS | RAPID CITY | 4 / 7 | Open UST(s) | SD02-00288 |
Open leak cleanups — most recently reported
| Site | City | Reported | Substance | EPA record |
|---|---|---|---|---|
| Former Tidal Station - Tank System Removal | Rapid City | 2018-03-15 | Petroleum | SD2018.037 |
| Former Tidal Station - Tank System Removal | Rapid City | 2018-03-15 | Petroleum | SD2018.036 |
| ATP - RC Central High School | Rapid City | 2017-12-12 | Diesel | SD2017.22 |
| Leaking Spill Bucket - Fresh Start #31 | Rapid City | 2016-07-27 | Gasoline | SD2016.143 |
| Line Leak - Flying J | Rapid City | 2015-09-25 | Gasoline | SD2015.191 |
| Tank Test Failure - Fresh Start | Rapid City | 2013-07-16 | Gasoline | SD2013.158 |
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 319 registered facilities has an unknown number of unregistered ones.
- Open cleanups are the headline. 16 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