EPA-regulated facilities in Dunn County, ND
There are 532 EPA-regulated facilities inside Dunn County, North Dakota. The most common kinds are air emissions (385), water discharge (98), hazardous waste (28). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 3 have a violation on record. Penalties over the last five years total $814k across 4 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 28 |
| Large quantity generators | 1 |
| Small quantity generators | 9 |
| Transporters | 2 |
| Chemical (RMP/TRI) | 3 |
| Air emissions | 385 |
| Major sources | 10 |
| Synthetic minor sources | 3 |
| Minor sources | 93 |
| Water discharge | 98 |
| Minor permits | 77 |
| Drinking water systems | 22 |
| Greenhouse gas reporters | 5 |
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.
- MANDAREE WASTEWATER TREATMENT LAGOONS Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- ARROW PIPELINE STATION #3 $450k in penalties
- CCUPRAIRIEROSE1BTFH MERIWETHER1AMBH-ULW PRAIRIEROSE1AMBH-ULW $170k in penalties
- CRESTWOOD TWO SHIELDS BUTTE 9-8-7 PRODUCED WATER SPILL $106k in penalties
- QUALA - KILLDEER $88k in penalties
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.