EPA-regulated facilities in Fremont County, WY

There are 1,960 EPA-regulated facilities inside Fremont County, Wyoming. The most common kinds are water discharge (1,483), hazardous waste (242), drinking water systems (137). 11 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 48 have a violation on record. Penalties over the last five years total $5.3M across 4 sites.

Open the map of Fremont County

1,960facilities in the county

11in significant noncompliance

48with a violation on record

$5.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	242
Large quantity generators	2
Small quantity generators	96
Transporters	2
Chemical (RMP/TRI)	8
Superfund	4
Air emissions	123
Major sources	8
Synthetic minor sources	1
Minor sources	20
Water discharge	1,483
Major permits	3
Minor permits	1,250
Drinking water systems	137
Greenhouse gas reporters	6
Data centers	2
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.

LOST CABIN GAS PLANT 165 LOST CABIN ROAD, LYSITE, WY, 82642 Significant noncompliance · $15k in penalties
RIVERVIEW ROAD RECONSTRUCTION PROJECT RIVERVIEW ROAD, RIVERTON, WY, 82501 Significant noncompliance
ETHETE WATER TREATMENT PLANT 392 ETHETE ROAD, ETHETE, WY, 82520 Significant noncompliance
DUTCH ED LANE RECONSTRUCTION PROJECT DUTCH ED LANE, LANDER, WY, 82520 Significant noncompliance
GARDENS NORTH HOMEOWNERS ASSOCIATION-CHLORINATOR P.O. BOX 1302, DUBOIS, WY, 82513 Significant noncompliance
BILL'S PARTS AND SALVAGE 3153-B U.S. HIGHWAY 287, LANDER, WY, 82520 Significant noncompliance
LANDER WASTEWATER LAGOON 240 LINCOLN STREET, LANDER, WY, 82520 Significant noncompliance
EAGLE BRONZE INC 130 POPPY ST., LANDER, WY, 82520 Significant noncompliance
CENEX 4-28 FEDERAL (UNKNOWN ADDRESS), (UNKNOWN CITY), WY, 00000 Significant noncompliance
DUBOIS WASTEWATER LAGOON PO BOX 555, DUBOIS, WY, 82513 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE-RIVERTON 822 W SUNSET, RIVERTON, WY, 82501 $5.3M in penalties
CHEMTRADE REFINERY SERVICES INC - RIVERTON PLANT 140 GOES IN LODGE RD, RIVERTON, WY, 82501 $10k in penalties
RIVERTON WWTF 816 N. FEDERAL BLVD, RIVERTON, WY, 82501 $1k in penalties

Superfund sites

PLUNKETT OIL FIELD 5 MILES SOUTHEAST OF ETHETE, ETHETE, WY, 82520
PAVILLION AREA GROUND WATER STUDY GROUND WATER WELLS AROUND PAVILLION, WY, PAVILLION, WY, 82523
FORT WASHAKIE CHEMICALS COAL DRIVE & WASHAKIE ST., FORT WASHAKIE, WY, 82514
GREEN MOUNTAIN GROUP (TRONOX) APPROXIMATELY 7 MILES SOUTH OF JEFFREY CITY, JEFFREY CITY, WY, 82310

Data centers

DATA CENTER-NORTH RANGE BUSINESS PARK UNKNOWN, UNKNOWN, WY, 00000
ECHOSTAR DATA CENTER UNKNOWN, UNKNOWN, WY, 00000

Towns in Fremont County

Riverton

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.