| Region | | Complaint Date | | Status | | Docket |
|---|
 Region 08 | | | | Active | | SDWA-08-2024-0008 Cottonwood Acres Public Water System |
| Region 08 | | | | Active | | SDWA-08-2024-0009 Town of Cokeville |
| Region 08 | | | | Active | | SDWA-08-2024-0010 Two Medicine Water Company |
| Region 08 | | | | Closed | | SDWA-08-2024-0011 Brush Creek LLC |
| Region 08 | | | | Closed | | SDWA-08-2024-0012 Keyhole State Park Cottonwood CG |
| Region 08 | | | | Active | | SDWA-08-2024-0013 Crow Agency Public Water System |
| Region 08 | | | | Active | | SDWA-08-2024-0014 Aramark Togwotee, LLC |
| Region 08 | | | | Closed | | SDWA-08-2024-0015 Ward Creek Landowners Association |
| Region 08 | | | | Active | | SDWA-08-2024-0016 Town of Dixon |
| Region 08 | | | | Active | | SDWA-08-2024-0017 Leisure Valley, Inc. |
| Region 08 | | | | Active | | SDWA-08-2024-0018 Town of Granger |
| Region 08 | | | | Active | | SDWA-08-2024-0019 Town of Albin Public Water System |
| Region 08 | | | | Active | | SDWA-08-2024-0020 USDA Forest Service, BTNF Curtis Canyon Campground |
| Region 08 | | | | Closed | | SDWA-08-2024-0021 Grandma’s Inn PWS |
| Region 08 | | | | Active | | SDWA-08-2024-0022 South End Water Users Service and Improvement District |
| Region 08 | | | | Active | | SDWA-08-2024-0023 Town of Moorcroft |
| Region 08 | | | | Active | | SDWA-08-2024-0024 County of Natrona, Alcova Lake Park Trailer Village Public Water System |
| Region 08 | | | | Active | | SDWA-08-2024-0025 Squaw Creek Water District |
| Region 08 | | | | Active | | SDWA-08-2024-0026 Fire Island Holdings, Inc., Pub Place Public Water System |
| Region 08 | | | | Active | | SDWA-08-2024-0027 Jeffrey City Water & Sewer District |
| Region 08 | | | | Active | | SDWA-08-2024-0028 Rivermeadows Homeowners Association Inc. |
| Region 08 | | | | Active | | SDWA-08-2024-0029 Parkland USA Corporation, Super Pumper/Sinclair #5 |
| Region 08 | | | | Active | | SDWA-08-2024-0030 Targhee Village Golf Course |
| Region 08 | | | | Active | | SDWA-08-2024-0032 Spirit Lake Water Resource Management Program |
| Region 08 | | | | Active | | TSCA-08-2022-0002 Larsen Development Company |
| Region 08 | | | | Active | | TSCA-08-2022-0004 DANIEL BYERS DBA A+ HANDYMAN HOME |
| Region 08 | | | | Closed | | TSCA-08-2022-0005 Capital Roofing & Restoration, Inc. |
| Region 08 | | | | Closed | | TSCA-08-2022-0006 Paramount Construction & Remodeling LLC |
| Region 08 | | | | Active | | TSCA-08-2022-0007 Nehemiah General Contractors LLC, |
| Region 08 | | | | Active | | TSCA-08-2022-0008 Colorado Quality Painting |
| Region 08 | | | | Closed | | TSCA-08-2023-0001 Britman Construction, Inc. |
| Region 08 | | | | Closed | | TSCA-08-2023-0002 US GROUP INC |
| Region 08 | | | | Active | | TSCA-08-2023-0003 Bordner Home Improvement Company DBA Bordner Home Solutions, Inc. |
| Region 08 | | | | Closed | | TSCA-08-2023-0004 Knepper Construction Company |
| Region 08 | | | | Closed | | TSCA-08-2023-0005 YANISH CUSTOM EXTERIORS |
| Region 08 | | | | Closed | | TSCA-08-2023-0006 Majestic Painting Company, Inc. |
| Region 08 | | | | Closed | | TSCA-08-2023-0007 COHB DEVELOPMENT LLC |
| Region 08 | | | | Closed | | TSCA-08-2024-0001 Mountain States Restoration, LLC |
| Region 08 | | 05/28/2024 | | Active | | SDWA-08-2024-0031 Scott Prusia and Stone Creek Homeowners Association |
| Region 08 | | 03/08/2024 | | Active | | TSCA-08-2024-0002 Armendariz, LLC |
| Region 08 | | 01/22/2024 | | Active | | RCRA-08-2024-0004 Kary’s Service Center |
| Region 08 | | 10/10/2023 | | Active | | SDWA-08-2024-0004 Leisure Valley, Inc. |
| Region 08 | | 04/07/2023 | | Closed | | SDWA-08-2023-0008 XTO Energy Inc. |
| Region 08 | | 03/02/2023 | | Closed | | FIFRA-08-2023-0016 Bowers Aerial LLC |
| Region 08 | | 04/14/2022 | | Active | | CWA-08-2022-0005 Green River City Corp. |
| Region 08 | | 03/21/2022 | | Closed | | RCRA(CIT)-08-2022-0004 Dakota Sioux Casino |
| Region 08 | | 02/04/2022 | | Active | | SDWA-08-2022-0008 MR. JOHN MALGAARD, WAGON BOX INN |
| Region 08 | | 02/03/2022 | | Closed | | FIFRA-08-2022-0023 In The Matter OF: KES Science & Technology |
| Region 08 | | 02/02/2022 | | Closed | | FIFRA-08-2022-0022 U.S. Department of Homeland Security Bureau of Customs and Border Protection |
| Region 08 | | 02/01/2022 | | Closed | | FIFRA-08-2022-0021 KES SCIENCE & TECHNOLOGY, INC |
| Region 08 | | 01/31/2022 | | Closed | | CERCLA-08-2022-0004 COLORADO SMELTER SUPERFUND SITE, CITY OF PUEBLO, PUEBLO COUNTY, COLORADO |
| Region 08 | | 01/26/2022 | | Closed | | SDWA-08-2022-0007 SNAKE RIVER MOBILE HOME PARK |
| Region 08 | | 01/25/2022 | | Closed | | CERCLA-08-2022-0003 1045-1049, 1103 SOUTH SANTA FE AVANUE, CITY OF PUEBLO, COLORADO |
| Region 08 | | 01/20/2022 | | Closed | | SDWA-08-2022-0006 DEVILS TOWER KOA-CAMPSTOOL PUBLIC WATER SYSTEM |
| Region 08 | | 01/18/2022 | | Active | | SDWA-08-2022-0005 WESTON COUNTY MALLO CAMP PUBLIC WATER SYSTEM |
| Region 08 | | 01/14/2022 | | Active | | CAA-08-2022-0003 D90 ENERGY, LLC |
| Region 08 | | 01/14/2022 | | Closed | | TSCA-08-2022-0001 RENOVATE DENVER, INCORPORATED |
| Region 08 | | 01/12/2022 | | Closed | | FIFRA-08-2022-0019 ATLANTIUM TECHNOLOGIES, LTD. |
| Region 08 | | 01/12/2022 | | Closed | | FIFRA-08-2022-0020 CAMFIL USA INC. |
| Region 08 | | 01/11/2022 | | Active | | SDWA-08-2022-0004 BEULAH LAND WATER, LLC |
| Region 08 | | 12/22/2021 | | Closed | | FIFRA-08-2022-0018 MIRANDA WATER TREATMENT |
| Region 08 | | 12/16/2021 | | Active | | CWA-08-2022-0001 CHARGING EAGLE ENTERPRISES, LLC |
| Region 08 | | 12/14/2021 | | Closed | | CAA-08-2022-0002 TARGA BADLANDS LLC |
| Region 08 | | 12/10/2021 | | Closed | | RCRA-08-2022-0002 CLEAN HARBORS ARAGONITE, LLC |
| Region 08 | | 12/09/2021 | | Closed | | FIFRA-08-2022-0017 OMNILYTE DISINFECTANT |
| Region 08 | | 12/09/2021 | | Closed | | SDWA-08-2022-0002 USDA FOREST SERVICE, UINTAH, WASATCH NATIONAL FOREST; MEEKS CABIN CAMPGROUND |
| Region 08 | | 12/09/2021 | | Closed | | sdwa-08-2022-0003 LAVA MOUNTAIN, LLC |
| Region 08 | | 12/06/2021 | | Active | | CERCLA-08-2022-0002 RICO-ARGENTINE SITE; ATLANTIC RICHFIELD COMPANY |
| Region 08 | | 12/06/2021 | | Closed | | FIFRA-08-2022-0016 ARIIX LLC |
| Region 08 | | 11/22/2021 | | Closed | | FIFRA-08-2022-0013 NORTHERN LIGHTS CEDAR TUBS 86 |
| Region 08 | | 11/22/2021 | | Closed | | FIFRA-08-2022-0014 NORTHERN LIGHTS CEDAR TUBS 45 |
| Region 08 | | 11/22/2021 | | Closed | | FIFRA-08-2022-0015 NORTHERN LIGHTS CEDAR TUBS 29 |
| Region 08 | | 11/17/2021 | | Closed | | CAA-08-2022-0001 KERR-MCGEE GATHERING, LLC |
| Region 08 | | 11/17/2021 | | Closed | | FIFRA-08-2022-0002 NORTHERN LIGHTS CEDAR TUBS INC |
| Region 08 | | 11/17/2021 | | Closed | | FIFRA-08-2022-0011 NORTHERN LIGHTS CEDAR TUBS INC. (2) |
| Region 08 | | 11/17/2021 | | Closed | | FIFRA-08-2022-0012 NORTHERN LIGHTS CEDAR TUBS INC (1) |
| Region 08 | | 11/10/2021 | | Closed | | SDWA-08-2022-0001 LITTLE BEAR INN LLC |
| Region 08 | | 11/08/2021 | | Closed | | FIFRA-08-2022-0010 AQUAFILTRASI INTERNATIONAL |
| Region 08 | | 10/26/2021 | | Active | | CERCLA-08-2022-0001 BAUER TAILINGS SITE; SEA RAY INVESTMENTS LLC |
| Region 08 | | 10/26/2021 | | Closed | | FIFRA-08-2022-0009 CANATURE 67 |
| Region 08 | | 10/20/2021 | | Closed | | FIFRA-08-2022-0004 CANATURE 27 |
| Region 08 | | 10/20/2021 | | Closed | | FIFRA-08-2022-0005 OSP MICROCHECK |
| Region 08 | | 10/20/2021 | | Closed | | FIFRA-08-2022-0006 OZONE |
| Region 08 | | 10/20/2021 | | Closed | | FIFRA-08-2022-0007 OMILYTE |
| Region 08 | | 10/20/2021 | | Closed | | FIFRA-08-2022-0008 CANATURE 38 |
| Region 08 | | 10/06/2021 | | Closed | | FIFRA-08-2022-0003 AIROCIDE AIR FILTER |
| Region 08 | | 10/04/2021 | | Closed | | FIFRA-08-2022-0001 FRANKLIN ELECTRIC COMPANY INC. |
| Region 08 | | 10/04/2021 | | Closed | | FIFRA-08-2022-0002 ARIIX LLC |
| Region 08 | | 09/28/2021 | | Closed | | FIFRA-08-2021-0066 COLD BORE TECHNOLOGY CORPORATION |
| Region 08 | | 09/27/2021 | | Closed | | FIFRA-08-2021-0064 FAR UV |
| Region 08 | | 09/27/2021 | | Closed | | FIFRA-08-2021-0065 NELSON LABORATORIES, LLC |
| Region 08 | | 09/23/2021 | | Active | | EPCRA-08-2021-0002 MOUNTAIN MEADOWS LAMB CORPORATION (DBA SUPERIOR FARMS, INC.) |
| Region 08 | | 09/20/2021 | | Active | | CAA-08-2021-0008 SILVER EAGLE REFINING, INC. |
| Region 08 | | 09/14/2021 | | Closed | | SDWA-08-2021-0039 FAST STOP 1133 INCORPORATED; ORIN JUNCTION TRUCK STOP |
| Region 08 | | 09/14/2021 | | Active | | TSCA-08-2021-0009 DENVER PAINT COMPANY LLC |
| Region 08 | | 09/03/2021 | | Closed | | CAA-08-2021-0006 CITATION OIL & GAS CORP |
| Region 08 | | 09/03/2021 | | Active | | CAA-08-2021-0007 SILVER EAGLE REFINING, INC. |
| Region 08 | | 09/02/2021 | | Closed | | CWA-08-2021-0017 CITY OF HELENA, MONTANA |
| Region 08 | | 08/26/2021 | | Closed | | CAA-08-2021-0005 FARMERS UNION COOPERATIVE ASSOCIATION OF FERNEY |
| Region 08 | | 08/24/2021 | | Active | | CERCLA-08-2021-0006 THE LONDON MINE SOURCE AREA WITHIN THE BONITA PEAK MINING DISTRICT SITE; HOUGHTON MOUNTAIN MINES LLC, PHILIP M. BENNETT AND HOUGHTON MOUNTAIN LANDS, LLC |
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