EPA-regulated facilities in Williams County, ND

There are 722 EPA-regulated facilities inside Williams County, North Dakota. The most common kinds are water discharge (312), hazardous waste (184), air emissions (148). 6 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 15 have a violation on record. Penalties over the last five years total $5.3M across 2 sites.

Open the map of Williams County

722facilities in the county

6in significant noncompliance

15with a violation on record

$5.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	184
Large quantity generators	3
Small quantity generators	70
Transporters	8
Chemical (RMP/TRI)	31
Superfund	3
Air emissions	148
Major sources	11
Synthetic minor sources	7
Minor sources	84
Water discharge	312
Major permits	1
Minor permits	225
Drinking water systems	83
Greenhouse gas reporters	16
Data centers	1
Scrap yards	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.

MEADOWLARK MIDSTREAM COMPANY, LLC 68TH ST NW & HWY 85, ATHENS TOWNSHIP, ND, 58801 Significant noncompliance
13-MILE LANDFILL - SECURE WASTE INFRASTRUCTURE USA LLC 13982 WEST FRONT STREET, WILLISTON, ND, 58802 Significant noncompliance
WELLBORE INTEGRITY SOLUTIONS (WIS) 5072 OWAN INDUSTRIAL PARK DR, WILLISTON, ND, 58801 Significant noncompliance
WESTERN AREA WATER SUPPLY AUTHORITY REMOTE LOCATION, UNKNOWN, ND, 58000 Significant noncompliance
CLEARSHIFT, LLC 5398 105TH AVE. NW, TIOGA, ND, 58852 Significant noncompliance
AIC ENERGY CORP (UNKNOWN ADDRESS), (UNKNOWN CITY), ND, 00000 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE - WILLISTON 4625 2ND AVE W, WILLISTON, ND, 58801 $5.3M in penalties
CHORD ENERGY - WILLISTON YARD 6205 16TH AVE W, WILLISTON, ND, 58801 $17k in penalties

Superfund sites

BLACKTAIL CREEK SPILL BLACKTAIL CREEK INTO LITTLE MUDDY RIVER, MARMON, ND, 58801
FORMER ENVIRO SHIELD PRODUCTS, INC 2415 2ND AVENUE WEST, WILLISTON, ND, 58801
OLD WILLISTON LANDFILL ROUTE 1804 DUE E OF LITTLE MUDDY RIVER, WILLISTON, ND, 58801

Data centers

Atlas Powr Williston Datacenter

Towns in Williams County

Williston

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.