EPA-regulated facilities in Granite County, MT

There are 143 EPA-regulated facilities inside Granite County, Montana. The most common kinds are water discharge (95), drinking water systems (26), hazardous waste (11). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 6 have a violation on record. Penalties over the last five years total $48k across 1 site.

Open the map of Granite County

143facilities in the county

2in significant noncompliance

6with a violation on record

$48kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	11
Small quantity generators	3
Superfund	3
Air emissions	11
Water discharge	95
Minor permits	85
Drinking water systems	26
Data centers	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.

YELLOW DOG MINE PO BOX 1110, PHILIPSBURG, MT, 59858 Significant noncompliance
TOWN OF DRUMMOND WWTP T11N R13W S25 SW, DRUMMOND, MT, 59832 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

SAPPHIRE RANCH MINE PO BOX 1110, PHILIPSBURG, MT, 59858 $48k in penalties

Superfund sites

PHILIPSBURG MINING AREA UPR CLARK FORK BASIN, PHILIPSBURG, MT, 59858
BLM-LONDONERRY MINE/MAXVILLE TAILINGS T 6N R 14W SEC 5, PHILIPSBURG, MT, 59858
RUMSEY TAILINGS PHILIPSBURGH, PHILIPSBURGH, MT, 59858

Data centers

Unnamed data center (OSM)

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.