| 28-1 FEDERAL TANK BATTERY | Water | 3 | — | — | Violation Identified |
| 71 CONSTRUCTION RIVERTON HOT PLANT | Water | 1 | — | — | No Violation Identified |
| ALPHA 13K LNG PLANT | Water | 2 | — | — | No Violation Identified |
| ANTICLINE DISPOSAL FACILITY | Water | 1 | — | — | — |
| ANVIL 33-1 DISCHARGE FACILITY | Water | — | — | — | No Violation Identified |
| ARCH MINERAL-SEMINOE #2 MINE | Water | — | — | — | No Violation Identified |
| B & R MOBILE HOME VILLAGE | Water | 4 | — | — | Violation Identified |
| BAGGS-COLORADO STATE LINE (LITTLE SNAKE RIVER SOUTH SECTION), WYDOT STP-P182033 | Water | — | — | — | No Violation Identified |
| BALLARD PETROLEUM HOLDINGS EASTERN JOHNSON COUNTY FACILITIES - BILLY BAROO FEDER | Water | — | — | — | No Violation Identified |
| BALLARD PETROLEUM HOLDINGS S. CAMPBELL COUNTY FACILITIES (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| BALLARD PETROLEUM HOLDINGS-NORTH CAMPBELL COUNTY-INITIAL FACILITY: HAYDEN TRUST | Water | — | — | — | No Violation Identified |
| BARBER CREEK CBM FACILITY | Water | 3 | — | — | No Violation Identified |
| BAXTER OIL AND GAS PRODUCTION AND GATHERING SYSTEM | Water | — | — | — | No Violation Identified |
| BENTONITE MINE, LQD#685, OSHOTO AREA | Water | 2 | — | — | No Violation Identified |
| BFU GAS PIPELINE | Water | 1 | — | — | No Violation Identified |
| BIG EAGLE MINE | Water | 1 | — | — | No Violation Identified |
| BIG HORN SCHOOL DISTRICT 4 - BASIN SCHOOLS | Water | 1 | — | — | No Violation Identified |
| BIG PINEY DISTRICT GATHERING (FIELD PERMIT) | Water | 1 | — | — | Violation Identified |
| BIG UTE DISCHARGE FACILITY | Water | 1 | — | — | Significant Violation |
| BIGHORN AIRWAYS, INC. | Water | — | — | — | No Violation Identified |
| BISON AMINE PLANT | Water | 1 | — | — | — |
| BLACK BUTTE MINE | Water | 1 | — | — | No Violation Identified |
| BLACK ROCK QUARRY | Water | 1 | — | — | Violation Identified |
| BOBCAT ESTATES, LLC | Water | 1 | — | — | — |
| BRIDGER VALLEY METAL RECYCLERS | Water | — | — | — | No Violation Identified |
| BRUFF/MOXA ARCH OIL & GAS PRODUCTION AND GATHERING SYSTEM | Water | — | — | — | No Violation Identified |
| BUFFALO PLANT | Water | 2 | — | — | Violation Identified |
| BURGESS JUNCTION CENTRAL SEWAGE TREATMENT FACILITY | Water | — | — | — | No Violation Identified |
| BURR STATE 2-16 | Water | 2 | — | — | No Violation Identified |
| BUSHONG EQUIPMENT, INC. | Water | — | — | — | No Violation Identified |
| CAMP GUERNSEY TROOP LABOR CONSTRUCTION PROJECTS (FIELD PERMIT) | Water | 1 | — | — | No Violation Identified |
| CAMPBELL AND JOHNSON COUNTY PROJECTS (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| CAMPBELL WIND FARM PROJECT | Water | 1 | — | — | No Violation Identified |
| CARSON EAST CS STATE #3 & 4 CBM WELLS | Water | — | — | — | No Violation Identified |
| CARSON FEDERAL POD | Water | — | — | — | No Violation Identified |
| CASSA QUARRY-WYDOT FACILITY | Water | — | — | — | No Violation Identified |
| CHAIN LAKE COMPRESSOR STATION | Water | — | — | — | No Violation Identified |
| CHEYENNE CONCRETE BATCH PLANT | Water | 1 | — | — | No Violation Identified |
| CHEYENNE RAIL YARDS (UNION PACIFIC RAILROAD) | Water | 4 | — | — | No Violation Identified |
| CHEYENNE SANITATION TRANSFER STATION | Water | — | — | — | No Violation Identified |
| CHEYENNE-LARAMIE COUNTY HEALTH DEPARTMENT | Water | — | — | — | No Violation Identified |
| CHRISTENSEN RANCH SATELLITE FACILITY | Water | 2 | — | — | No Violation Identified |
| CHURCH BUTTES OIL & GAS PRODUCTION AND GATHERING SYSTEM | Water | — | — | — | No Violation Identified |
| CITY OF LARAMIE | Water | — | — | — | No Violation Identified |
| CITY OF TORRINGTON LANDFILL (IGP) | Water | — | — | — | Violation Identified |
| CITY SHOPS, PARKS, AND ANIMAL CONTROL BUILDINGS | Water | — | — | — | No Violation Identified |
| COASTAL CHEMICAL LLC-GILLETTE FACILITY | Water | — | — | — | — |
| CONVERSE COUNTY COMMON AREA OF DEVELOPMENT | Water | — | — | — | No Violation Identified |
| CONVERSE COUNTY PROJECTS (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| COUNTY PATENTED, SITE #10 | Water | 1 | — | — | — |
| COWBOY MIDSTREAM ROSS ROAD TRUCK OFFLOADING FACILITY | Water | — | — | — | No Violation Identified |
| COYOTE RIDGE ELEMENTARY SCHOOL - COUNTY PORTION | Water | — | — | — | — |
| CRESTVIEW ESTATES W&S DISTRICT | Water | 1 | — | — | Significant Violation |
| CROELL REDI-MIX CONCRETE BATCH PLANT | Air | — | — | — | No Violation Identified |
| CROSS H. RANCH, INC. GRAVEL PIT | Water | — | — | — | Violation Identified |
| CYS13 DATA CENTER | Water | 1 | — | — | Significant Violation |
| DAVE JOHNSTON POWER PLANT | Water | 6 | — | — | No Violation Identified |
| DENBURY PUMPKIN CREEK FACILITY | Water | 3 | — | — | — |
| DESERT SPRINGS COMPRESSOR STATION ABANDONMENT AND REMOVAL PROJECT | Water | — | — | — | No Violation Identified |
| DINGO FEDERAL #1 | Water | 1 | — | — | No Violation Identified |
| DOUGLAS CNG FACILITY | Water | 1 | — | — | Violation Identified |
| DR51885, CHIEF JOSEPH HIGHWAY, WYO 296, LANDSLIDE REPAIR RM 26.1 | Water | — | — | — | No Violation Identified |
| DRY PINEY OIL & GAS PRODUCTION AND GATHERING SYSTEM | Water | 1 | — | — | No Violation Identified |
| EASTERN LARAMIE COUNTY SOLID WASTE DISPOSAL DISTRICT SANITARY LANDFILL | Water | 1 | — | — | No Violation Identified |
| EDEN VALLEY LANDFILL AND TRANSFER STATION | Water | — | — | — | No Violation Identified |
| ELKHORN VILLAGE | Water | 1 | — | — | No Violation Identified |
| ESTERBROOK HILL GRAVEL SITE | Water | 1 | — | — | No Violation Identified |
| ETCHEPARE QUARRY | Water | — | — | — | No Violation Identified |
| EVANSTON #2 LANDFILL | Water | 1 | — | — | No Violation Identified |
| EVANSTON FACILITY | Water | 1 | — | — | No Violation Identified |
| FARSON - PINEDALE (COUNTY LINE NORTH), WYDOT NHPP-N132109 | Water | 1 | — | — | — |
| FORMER DUBOIS SAWMILL SITE REFUSE PILE CLEANUP | Water | 1 | — | — | Violation Identified |
| FORT BRIDGER SEWER DISTRICT | Water | 4 | — | — | Violation Identified |
| FREESTONE PROJECT AREA (FORMERLY NIGHTHAWK FACILITY) | Water | 1 | — | — | — |
| GALION SEPARATION FACILITY | Water | 3 | — | — | No Violation Identified |
| GARNER LAKE VILLAGE SUBDIVISION PHASE I (7/1/15 - 3/15/16) | Water | — | — | — | No Violation Identified |
| GARRETT BENTONITE MINE | Water | 1 | — | — | — |
| GILLETTE MADISON 18 BLENDING WATERLINE | Water | 3 | — | — | No Violation Identified |
| GRANGER FACILITY | Water | — | — | — | No Violation Identified |
| GRASS CREEK COAL MINE | Water | 1 | — | — | No Violation Identified |
| GRAY QUARRY | Water | — | — | — | No Violation Identified |
| GREEN RIVER DISTRICT GATHERING (FIELD PERMIT) | Water | 1 | — | — | Violation Identified |
| GRIEVE UNIT CO2 ENHANCED OIL RECOVERY PROJECT | Water | 1 | — | — | No Violation Identified |
| HANSEN LAKE COMPRESSOR STATION | Water | — | — | — | No Violation Identified |
| HAPPY JACK LANDFILL FRONT ENTRANCE, SCALE HOUSE, AND ADMIN. BLDG. PROJECT | Water | 1 | — | — | — |
| HARBORLITE GREEN RIVER FACILITY | Water | — | — | — | No Violation Identified |
| HIGH POINT COMPRESSOR STATION | Water | — | — | — | No Violation Identified |
| HILIGHT FIELD OIL AND GAS FACILITIES (FIELD PERMIT) | Water | 1 | — | — | Violation Identified |
| HOLDINGS LITTLE AMERICA - SOUTHWEST CHEYENNE LAUST REMEDIATION | Water | — | — | — | No Violation Identified |
| HORSE RANCH CREEK STOCKPILE AND PLANT SITE | Water | 1 | — | — | Violation Identified |
| HUNT FIELD AIRPORT | Water | 2 | — | — | Violation Identified |
| I-25 COUNTY LINE SEPARATION STOCKPILE AND PLANT SITE | Water | 1 | — | — | No Violation Identified |
| JAY GRAVEL MINE | Water | 2 | — | — | — |
| JEBRO INC. FACILITY | Water | — | — | — | No Violation Identified |
| JENSEN DISPOSAL FACILITY | Water | 3 | — | — | — |
| JEWELL GAS PLANT | Water | — | — | — | No Violation Identified |
| JOHN J. BULLINGER & SONS INC | Water | 1 | — | — | No Violation Identified |
| JTL93, ML1, ML13, ML116 MINE SUBSIDENCE MITIGATION | Water | — | — | — | No Violation Identified |
| KEELINE PIT-BASIC ENERGY SERVICES FACILITY | Water | 1 | — | — | Violation Identified |
| KEMMERER WATER TREATMENT PLANT | Water | 3 | — | — | No Violation Identified |
| LAGOON DRIVE CONCRETE BATCH PLANT | Water | — | — | — | No Violation Identified |
| LAMBIE FIELD, STRICKLING LEASE, TOWNSEND STATE LEASE (AKA BEAVER CREEK DISCHARGE | Water | 2 | — | — | — |
| LARAMIE | Water | — | — | — | No Violation Identified |
| LARAMIE RIVER STATION - GRAVEL | Water | 1 | — | — | — |
| LCCC STUDENT SERVICES CENTER | Water | — | — | — | Significant Violation |
| LEUCITE HILLS MINE | Water | 2 | — | — | No Violation Identified |
| LIGHTNING STATE #11-36 | Water | — | — | — | Unknown |
| MAMMOTH WASTEWATER TREATMENT PLANT (SW) | Water | 1 | — | — | — |
| MG OIL - GILLETTE | Water | — | — | — | — |
| MONDELL FIELD AIRPORT 2012 RUNWAY EXTENSION NEWCASTLE WY | Water | 1 | — | — | No Violation Identified |
| MOSKEE QUARRY | Water | — | — | — | No Violation Identified |
| MOXA OIL & GAS PROJECT AREA (FIELD PERMIT) | Water | 1 | — | — | No Violation Identified |
| MUDDY RIDGE GAS PRODUCTION FIELD ACTIVITIES (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| MULLINAX CONCRETE SERVICE CO INC. SETTLING PONDS | Water | 1 | — | — | Violation Identified |
| NATRONA CO WEED & PEST (PREV CASPER-NATRONA CO HEALTH DEPT) | Water | — | — | — | No Violation Identified |
| NAVIGATION POWDER RIVER ENERGY DEVELOPMENT AREA | Water | — | — | — | No Violation Identified |
| NEWCASTLE QUARRY | Water | 1 | — | — | — |
| NORTH BUTTE URANIUM ISR MINE PROJECT | Water | — | — | — | No Violation Identified |
| NORTH FORK CELLARS OIL WELL | Water | 2 | — | — | Violation Identified |
| NORTH SILO HIGH PRESSURE CRUDE OIL PIPELINE PROJECT | Water | 1 | — | — | No Violation Identified |
| OIL MOUNTAIN PIT | Water | 1 | — | — | — |
| OKIE DRAW FEDERAL #1-14 | Water | 3 | — | — | No Violation Identified |
| OPAL PLANT NEW OFFICE & PARKING CONSTRUCTION PROJECT | Water | — | — | — | No Violation Identified |
| OWL PUMPKIN BUTTES SWD WASTEWATER DISPOSAL FACILITY | Water | 2 | — | — | No Violation Identified |
| OWL THUNDER BASIN SWD WASTEWATER DISPOSAL FACILITY | Water | 1 | — | — | Violation Identified |
| OWL WAMSUTTER SWD WASTEWATER DISPOSAL FACILITY | Water | 1 | — | — | No Violation Identified |
| PAINT ROCK PIT | Water | 1 | — | — | Violation Identified |
| PARK COUNTY WEED AND PEST CONTROL DISTRICT | Water | — | — | — | No Violation Identified |
| PAVILLION GAS PRODUCTION FIELD ACTIVITIES (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| PETRO STOPPING CENTER | Water | — | — | — | No Violation Identified |
| PGC LLC 2-1 TANK BATTERY | Water | 6 | 1 | — | — |
| PGC LLC 35-1 | Water | 5 | 1 | — | — |
| PILOT TRAVEL CENTER #308 (INDUSTRIAL OPS) | Water | 6 | — | — | No Violation Identified |
| PINEDALE ANTICLINE & JONAH INFILL OIL & GAS PROJECT AREA | Water | 1 | — | — | Violation Identified |
| PLANT SITE, MP 501 US HIGHWAY 191 SOUTH | Water | 1 | — | — | — |
| POLECAT FACILITY | Water | 2 | — | — | Violation Identified |
| PRAIRIE HILLS QUARRY | Water | 1 | — | — | No Violation Identified |
| PUMPKIN CREEK POD II NORTH FACILITY | Water | 3 | — | — | No Violation Identified |
| RAWHIDE OIL FIELD | Water | — | — | — | Violation Identified |
| RED BUTTES GYPSUM QUARRY | Water | 1 | — | — | — |
| RENOS LAND & MINERALS COMPANY OIL & GAS PRODUCTION FACILITIES | Water | — | — | — | No Violation Identified |
| RIG 125 STACK SITE | Water | 1 | — | — | Violation Identified |
| ROAD AND BRIDGE SHOP (WORLAND) | Water | — | — | — | No Violation Identified |
| ROSS ISR PROJECT - CENTRAL PROCESSING PLANT BLDG. | Water | 1 | — | — | No Violation Identified |
| RUSSELL QUARRY (OCTOBER 2021) | Water | 4 | — | — | Violation Identified |
| SADDLE RIDGE (BY SADDLE RIDGE LLC) | Water | 1 | — | — | No Violation Identified |
| SAGE CREEK FIELD DEVELOPMENT PROJECT | Water | 1 | — | — | No Violation Identified |
| SCHOONOVER FEDERAL UNITS PODS 1 & 2 | Water | 2 | — | — | No Violation Identified |
| SEVEN MILE HILL WIND RE-POWER | Water | 2 | — | — | — |
| SHERARD HYDROELECTRIC GENERATION FACILITY | Water | 1 | — | — | Violation Identified |
| SHERIDAN PLANT-CROELL IGP | Water | 3 | — | — | Violation Identified |
| SHERIDAN WATER TREATMENT PLANT | Water | 1 | — | — | No Violation Identified |
| SHOSHONI SAN #1 LANDFILL, SHWD 10.220 | Water | — | — | — | — |
| SHUTE CREEK (SC) 5-2 DISPOSAL WELL PAD | Water | — | — | — | No Violation Identified |
| SHUTE CREEK GAS PLANT EXPANSION PROJECT | Water | — | — | — | No Violation Identified |
| SIERRA CONSTRUCTION WASTE WATER POND #1 | Water | 2 | — | — | — |
| SOUTH BUCK CREEK FEDERAL 31-29 | Water | — | — | — | — |
| STANSBURY MINE | Water | — | — | — | Violation Identified |
| STATE 14-36 PH & 24-36 PH | Water | 1 | — | — | Violation Identified |
| STATE 36 PIT | Water | — | — | — | Violation Identified |
| STATE 6-36R | Water | 2 | — | — | — |
| STATE NO. 4-36 | Water | — | — | — | No Violation Identified |
| STATE OF WYOMING OFFICE COMPLEX | Water | 1 | — | — | — |
| STEVENSON CATTLE CO. (AKA DOUBLE S LIVESTOCK FEEDLOT) | Water | 1 | — | — | No Violation Identified |
| STP LAUST SOUTH CASPER | Water | — | — | — | No Violation Identified |
| SUNDANCE QUARRY | Water | — | — | — | No Violation Identified |
| SWEETGRASS; VILLAGE CENTER (4TH FILING), 4Z (5TH FILING), ROCKING A (10TH FILING | Water | 2 | — | — | No Violation Identified |
| SWEETWATER COUNTY SOLID WASTE DISPOSAL DISTRICT - WAMSUTTER LANDFILL | Water | — | — | — | No Violation Identified |
| T FEDERAL #10-16, PRODUCTING OIL WELL WITH ASSOC | Water | 2 | — | — | Violation Identified |
| TATA FIELD-WIDE CONSTRUCTION ACTIVITIES (FIELD PERMIT) | Water | — | — | — | No Violation Identified |
| TDS LANDFILL | Water | 1 | — | — | No Violation Identified |
| THRUSH POD CBM FACILITY | Water | — | — | — | No Violation Identified |
| TOWN OF BYRON | Water | — | — | — | No Violation Identified |
| TRACK CAPACITY EXPANSION-AMERICAN COLLOID COMPANY | Water | 1 | — | — | Violation Identified |
| TUPPER FEDERAL TANK BATTERY | Water | 6 | — | — | No Violation Identified |
| UPRR LUSK FACILITY | Water | 1 | — | — | No Violation Identified |
| UPS CASPER CENTER | Water | 1 | — | — | — |
| US30/287 JONATHON QUARRY ROAD | Water | — | — | — | No Violation Identified |
| VERMILION EAST FINN OIL FIELD PROJECT (FIELD PERMIT) | Water | 1 | — | — | Violation Identified |
| VERMILLION OIL AND GAS PRODUCTION AND GATHERING SYSTEM | Water | 1 | — | — | No Violation Identified |
| W.D. FEDERAL #1 | Water | 2 | — | — | No Violation Identified |
| WALLACE CREEK (CBM) FACILITY | Water | 1 | — | — | — |
| WASHAKIE BASIN NATURAL GAS DEVELOPMENT AREA (FIELD PERMIT) | Water | 2 | — | — | No Violation Identified |
| WASHAKIE COUNTY ROAD AND BRIDGE SHOP (TENSLEEP) | Water | 1 | — | — | — |
| WATER TREATMENT FACILITY | Water | 6 | — | — | Significant Violation |
| WESTERN GAS RES WESTWIND-ASTRA COMP STAT | Air | — | — | — | No Violation Identified |
| WESTERN GAS RES_WEST INDIAN CREEK-CROW | Air | — | — | — | No Violation Identified |
| WGR OPERATING BISON TREATING FACILITY | Air | 3 | — | — | No Violation Identified |
| WHEATLAND REDI-MIX PLANT & JONES PIT | Water | — | — | — | No Violation Identified |
| WHISKEY CANYON OIL AND GAS PRODUCTION AND GATHERING SYSTEM | Water | 1 | — | — | No Violation Identified |
| WHISPERING HILLS SUBDIVISION- UNDERGROUND ELECTRIC DISTRIBUTION LINE INSTALLATIO | Water | 2 | — | — | — |
| WILD BILL & TITUS STATE | Water | 3 | — | — | Violation Identified |
| WILLWOOD IRRIGATION DISTRICT | Water | — | — | — | No Violation Identified |
| WORLAND COMMUNITY PIT | Water | — | — | — | No Violation Identified |
| WRIGHT-DISTRICT BOUNDARY | Water | 1 | — | — | — |
| WYOMING HELICOPTERS, INC. | Water | — | — | — | No Violation Identified |
| YELLOWSTONE NATIONAL PARK | Water | — | — | — | No Violation Identified |
| YOUNGS CREEK MINE EARLY DEVELOPMENT ROAD | Water | 1 | — | — | No Violation Identified |