EPA-regulated facilities in Niobrara County, WY

There are 164 EPA-regulated facilities inside Niobrara County, Wyoming. The most common kinds are water discharge (85), hazardous waste (38), air emissions (37). 4 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 15 have a violation on record.

Open the map of Niobrara County

164facilities in the county

4in significant noncompliance

15with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	38
Small quantity generators	10
Chemical (RMP/TRI)	1
Air emissions	37
Minor sources	27
Water discharge	85
Minor permits	66
Drinking water systems	4
Greenhouse gas reporters	1
Scrap yards	1

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.

HENSEN LIVESTOCK 13-29 UNKNOWN, UNKNOWN, WY, 00000 Significant noncompliance
LANCE CREEK APEX 1&4 CONSOLIDATED (UNKNOWN ADDRESS), (UNKNOWN CITY), WY, 00000 Significant noncompliance
LANCE CREEK WATER DISTRICT 23 KANT ROAD, LANCE CREEK, WY, 82222 Significant noncompliance
BELL PASTURE ROADS UNKNOWN, UNKNOWN, WY, 00000 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.