EPA-regulated facilities in Platte County, WY

There are 247 EPA-regulated facilities inside Platte County, Wyoming. The most common kinds are water discharge (122), air emissions (51), hazardous waste (49). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 10 have a violation on record. Penalties over the last five years total $45k across 1 site.

Open the map of Platte County

247facilities in the county

3in significant noncompliance

10with a violation on record

$45kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	49
Small quantity generators	40
Chemical (RMP/TRI)	3
Superfund	3
Air emissions	51
Major sources	2
Synthetic minor sources	2
Minor sources	11
Water discharge	122
Minor permits	82
Drinking water systems	37

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.

BASIN ELECTRIC POWER COOPERATIVE - LARAMIE RIVER STATION 347 GRAYROCKS ROAD, WHEATLAND, WY, 82201 Significant noncompliance · $45k in penalties
HILAND EXPRESS PR6 METER STATION (UNKNOWN ADDRESS), (UNKNOWN CITY), WY, 00000 Significant noncompliance
TANK 888 API 653 CIR UNKNOWN, UNKNOWN, WY, 00000 Significant noncompliance

Superfund sites

GUERNSEY CAMP SITE AND MANEUVER AREA P.O. BOX 399, GUERNSEY, WY, 82214
HARTVILLE (TRONOX) HARTVILLE HWY 270 NEAR THE TOWN OF HARTVILLE, HARTVILLE, WY, 82215
WARREN F.E. AFB ATLAS E MISSILE SITE # 5 SEVEN MILES SOUTHEAST OF CHUGWATER, CHUGWATER, WY, 82210

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.