EPA-regulated facilities in Musselshell County, MT

There are 126 EPA-regulated facilities inside Musselshell County, Montana. The most common kinds are water discharge (102), air emissions (12), drinking water systems (9). None is in significant noncompliance, but 4 have a violation on record.

Open the map of Musselshell County

126facilities in the county

0in significant noncompliance

4with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	8
Small quantity generators	4
Superfund	2
Air emissions	12
Minor sources	2
Water discharge	102
Minor permits	77
Drinking water systems	9

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

Superfund sites

BLM-ROUNDUP LANDFILL 1.5 MILES NORTHWEST OF ROUNDUP, ROUNDUP, MT, 59072
BLM-ILLEGAL AIRSTRIP JOHN GRETAK SECTION 6 T11N R27E, FLATWILLOW, MT, 59059

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.