EPA-regulated facilities in Oglala Lakota County, SD

There are 111 EPA-regulated facilities inside Oglala Lakota County, South Dakota. The most common kinds are water discharge (77), drinking water systems (19), hazardous waste (16). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 2 have a violation on record. Penalties over the last five years total $18k across 2 sites.

Open the map of Oglala Lakota County

111facilities in the county

2in significant noncompliance

2with a violation on record

$18kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	16
Small quantity generators	9
Superfund	1
Air emissions	2
Minor sources	1
Water discharge	77
Minor permits	63
Drinking water systems	19

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

EVERGREEN LAGOON NW 1/4 S36 T39N R43W, PORCUPINE, SD, 57772 Significant noncompliance
PINE RIDGE COMMUNITY LAGOON NW1/4 SEC 14 T35N R45W, PINE RIDGE, SD, 57770 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

PORCUPINE DISTRICT GOVERNMENT BUILDING 125 EAGLE DR, PORCUPINE, SD, 57772 $16k in penalties
RED CLOUD INDIAN SCHOOL 100 MISSION DRIVE, PINE RIDGE, SD, 57770 $2k in penalties

Superfund sites

BADLANDS BOMBING RANGE PINE RIDGE INDIAN RESERVATION, PINE RIDGE, SD, 57770

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.