EPA · discharge permits by state

Discharge permits in Wyoming

1,686Current permits
16Major dischargers
759Individual permits

A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.

This page gathers Wyoming’s current permits three ways below — by the program they are issued under, by the city of the discharge, and by watershed. It names 5 programs, 42 cities and 409 watersheds. Each list says which set it covers.

Every permit’s record

Each of the 1,686 current permits in Wyoming has a record page: the permittee, the receiving water, the status and dates, and its effluent limits and exceedances. Each city below lists its own; or every permit in Wyoming, A to Z.

Pages: 1 2

By what is permitted in Wyoming

By city

The 42 cities with the most permits. All 42 cities in Wyoming with 3 or more permits are listed at every city in Wyoming.

Watersheds inside Wyoming 409

Every watershed with three or more permits in Wyoming, most permits first.

All 409 watersheds in Wyoming with 3 or more permits are named on one page at every watershed in Wyoming.

Other states

Every state carrying three or more current permits, in alphabetical order.

Permits

Major dischargers first. Not every permit in Wyoming is listed here.

Permit holder	NPDES ID	City	Program	Discharger	Receiving water
BIG EAGLE MINE	WY0025950	UNKNOWN		Major	Middle Crooks Creek
CHEYENNE RENEWABLE DIESEL COMPANY LLC	WY0000442	CHEYENNE		Major	CROW CREEK (REMAINDER) (2C)
CITY OF RAWLINS WASTEWATER TREATMENT FACILITY	WY0020427	UNKNOWN	Publicly owned treatment works	Major	Middle Sugar Creek
DAVE JOHNSTON POWER PLANT	WY0003115	UNKNOWN		Major	Dry Creek-North Platte River
DRY CREEK WATER RECLAMATION FACILITY	WY0022934	CHEYENNE	Publicly owned treatment works	Major	Diamond Creek-Crow Creek
GILLETTE WWTF	WY0020125	(UNKNOWN CITY)	Publicly owned treatment works	Major	Upper Donkey Creek
GREEN RIVER WASTEWATER TREATMENT PLANT	WY0020443	GREEN RIVER	Publicly owned treatment works	Major	Telephone Canyon-Green River
JACKSON WASTEWATER LAGOON	WY0021458	(UNKNOWN CITY)	Publicly owned treatment works	Major	Spring Creek-Snake River
KEMMERER WASTEWATER TREATMENT	WY0020320	(UNKNOWN CITY)	Publicly owned treatment works	Major	Oakley Draw-Hams Fork
LARAMIE TIE PLANT	WY0032590	LARAMIE		Major	Woodhouse Reservoir-Laramie River
LOVELL FACILITY	WY0000418	LOVELL		Major	Polecat Bench
POWELL WASTEWATER LAGOON	WY0020648	POWELL	Publicly owned treatment works	Major	Bitter Creek
ROCK SPRINGS WATER RECLAMATION FACILITY	WY0022357	ROCK SPRINGS	Publicly owned treatment works	Major	Town of Rock Springs-Bitter Creek
SHERIDAN WASTEWATER TREATMENT	WY0020010	(UNKNOWN CITY)	Publicly owned treatment works	Major	Soldier Creek-Goose Creek
SWEETWATER URANIUM PROJECT	WY0026689	UNKNOWN		Major	Battle Spring Draw
WORLAND WASTEWATER LAGOON	WY0020176	UNKNOWN	Publicly owned treatment works	Major	Slick Creek-Bighorn River
#1 PAUL	WY0026026	UNKNOWN		Minor	Upper Dutton Creek
#1 STATE UPRR, HORNE BROTHERS	WY0034070	(UNKNOWN CITY)		Minor	Horne Lake-Medicine Bow River
#1 WEBB-ANDERSON	WY0001350	(UNKNOWN CITY)		Minor	Polecat Creek
14 MILE PIT	WYR320322	(UNKNOWN CITY)	Industrial stormwater	Minor	Lower Big Cottonwood Creek
1998 MINE READY MIX SUPPORT	WYR000801	UNKNOWN	Industrial stormwater	Minor	Upper Donkey Creek
2024 REVEGETATION ACTION WYAML SITE: RAINBOW MINE (AMLIS# WY046746)	WYR106651	QUEALY	Construction stormwater	Minor	Sweetwater Creek
28-1 FEDERAL TANK BATTERY	WY0028860	UNKNOWN		Minor	Headwaters Lodgepole Creek
3 CREEK RANCH	WY0052094	(UNKNOWN CITY)		Minor	Spring Creek-Snake River
30 MADISON TRANSMISSION REPAIR LINE	WYG740992	MOORCROFT		Minor	Deer Creek
4S CATTLE COMPANY	WY0042773	UNKNOWN		Minor	Reservoir Number 3-Laramie River
4S CATTLE COMPANY LLC	WY0096768	(UNKNOWN CITY)	Concentrated animal feeding operations	Minor	Wheatland Creek
50 BUTTES NATURAL GAS LIQUIDS PROCESSING FACILITY	WYR104908	(UNKNOWN CITY)	Construction stormwater	Minor	Mud Spring Creek
5300 N PRINCE PLACE	WYG740987	JACKSON		Minor	Stewart Draw-Snake River
950 PIT	WYR320065	(UNKNOWN CITY)	Industrial stormwater	Minor	Cow Hollow Creek-Hams Fork
A-PLUS SERVICES, LLC	WYR001561	SHERIDAN	Industrial stormwater	Minor	Middle Prairie Dog Creek
ACACIA POD	WY0055310	UNKNOWN		Minor	Twentymile Creek
ADAMI - CRAZY WOMAN CREEK	WY0055191	UNKNOWN		Minor	Bilderback Creek-Bilderback Creek
ADAMI - INDIAN CREEK	WY0055051	UNKNOWN		Minor	Indian Creek
ADAMI -- FOURMILE CREEK	WY0055140	UNKNOWN		Minor	Fourmile Creek
ADRIA, JESSE, AND PRIME CS CBM FACILITY	WY0047635	UNKNOWN		Minor	Fourmile Creek
AEOLUS SUBSTATION	WYR105848	UNKNOWN		Minor	East Allen Lake-Medicine Bow River
AIRPORT TERMINAL BUILDING	WYR000135	SHERIDAN	Industrial stormwater	Minor	Lower Little Goose Creek
ALBANY COUNTY WEED AND PEST CONTROL DISTRICT	WYG480013	UNKNOWN		Minor
ALBATROSS CBM PROJECT	WY0095494	UNKNOWN		Minor	Durham Reservoir-Belle Fourche River

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