EPA-regulated facilities in Lyman County, SD

There are 91 EPA-regulated facilities inside Lyman County, South Dakota. The most common kinds are water discharge (72), hazardous waste (7), drinking water systems (6). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 4 have a violation on record.

Open the map of Lyman County

91facilities in the county

3in significant noncompliance

4with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	7
Small quantity generators	5
Chemical (RMP/TRI)	3
Air emissions	4
Water discharge	72
Minor permits	49
Drinking water systems	6

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.

WEST BRULE LAGOON SOUTH SOUTH OF ROUTE 10/PO BOX 807, LOWER BRULE, SD, 57548 Significant noncompliance
WEST BRULE LAGOON NORTH BY BIA ROUTE 10, LOWER BRULE, SD, 57548 Significant noncompliance
LOWER BRULE LAGOON SYSTEM 187 OYATE CIRCLE, LOWER BRULE, SD, 57548 Significant noncompliance

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.