Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
HF SINCLAIR CASPER REFINING LLC
Quick Summary
- •Released 24,791 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
5700 EAST HIGHWAY 20-26
CASPER, WY 82609
View on map ↗ - County
- NATRONA County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 324110
- Inspections
- 8 · last Aug 27, 2025
- Total Penalties
- $0 · last Jun 13, 2018
- Registry ID
- 110011942719
How This Compares
#17
of 64 TRI reporters in WY
#2,519
of 16,877 TRI reporters in Manufacturing
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
12
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2024)
-42% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 31,320 | — |
| 2016 | 28,388 | -9% |
| 2017 | 24,791 | -13% |
| 2018 | 23,958 | -3% |
| 2019 | 23,142 | -3% |
| 2020 | 24,457 | +6% |
| 2021 | 19,208 | -21% |
| 2022 | 17,250 | -10% |
| 2023 | 16,908 | -2% |
| 2024 | 18,064 | +7% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Benzene | 6,258 | 6,258 | — | — | 17 | ♦ Carcinogen |
| Ethylene | 3,434 | 3,434 | — | — | — | |
| Xylene (mixed isomers) | 3,197 | 3,197 | — | — | 3 | |
| n-Hexane | 2,195 | 2,195 | — | — | 1 | |
| Propylene | 1,214 | 1,214 | — | — | — | |
| Toluene | 832 | 832 | — | — | 2 | |
| Hydrogen sulfide | 261 | 261 | — | — | — | |
| Cumene | 209 | 209 | — | — | — | ♦ Carcinogen |
| Ethylbenzene | 187 | 187 | — | — | — | ♦ Carcinogen |
| Ammonia | 148 | 148 | — | — | — | |
| 1,2,4-Trimethylbenzene | 46 | 46 | — | — | — | |
| Cyclohexane | 32 | 32 | — | — | — | |
| Naphthalene | 15 | 15 | — | — | 1 | ♦ Carcinogen |
| Phenanthrene | 14 | 14 | — | — | — | |
| Lead compounds | 12 | 12 | — | — | 100 | |
| Mercury compounds | 4 | 4 | — | — | 0 | |
| Polycyclic aromatic compounds | 3 | 3 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 3 | 3 | — | — | — | |
| 1,3-Butadiene | 0 | 0 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Toluene | 3,593 | 3,593 | — | — | 3 | |
| Xylene (mixed isomers) | 3,338 | 3,338 | — | — | 6 | |
| Propylene | 2,445 | 2,445 | — | — | — | |
| n-Hexane | 2,435 | 2,435 | — | — | 0 | |
| Ethylene | 2,150 | 2,150 | — | — | — | |
| Benzene | 1,830 | 1,830 | — | — | 10 | ♦ Carcinogen |
| Ethylbenzene | 307 | 307 | — | — | 0 | ♦ Carcinogen |
| Hydrogen sulfide | 251 | 251 | — | — | — | |
| Cumene | 239 | 239 | — | — | — | ♦ Carcinogen |
| Ammonia | 148 | 148 | — | — | — | |
| 1,2,4-Trimethylbenzene | 49 | 49 | — | — | — | |
| Phenanthrene | 43 | 43 | — | — | — | |
| Cyclohexane | 35 | 35 | — | — | — | |
| Naphthalene | 25 | 25 | — | — | 10 | ♦ Carcinogen |
| Lead compounds | 9 | 9 | — | — | 73 | |
| Mercury compounds | 3 | 3 | — | — | 5 | |
| Polycyclic aromatic compounds | 3 | 3 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 3 | 3 | — | — | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Toluene | 3,447 | 3,447 | — | — | 98 | |
| Xylene (mixed isomers) | 3,351 | 3,351 | — | — | 125 | |
| Propylene | 2,682 | 2,682 | — | — | — | |
| n-Hexane | 2,639 | 2,639 | — | — | 47 | |
| Ethylene | 2,025 | 2,025 | — | — | — | |
| Benzene | 1,882 | 1,882 | — | — | 44 | ♦ Carcinogen |
| Ethylbenzene | 396 | 396 | — | — | 0 | ♦ Carcinogen |
| Hydrogen sulfide | 255 | 255 | — | — | — | |
| Cumene | 250 | 250 | — | — | — | ♦ Carcinogen |
| Ammonia | 148 | 148 | — | — | — | |
| 1,2,4-Trimethylbenzene | 55 | 55 | — | — | 38 | |
| Phenanthrene | 44 | 44 | — | — | 16 | |
| Cyclohexane | 41 | 41 | — | — | 34 | |
| Naphthalene | 13 | 13 | — | — | 8 | ♦ Carcinogen |
| Lead compounds | 9 | 9 | — | — | 22 | |
| Polycyclic aromatic compounds | 4 | 4 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 4 | 4 | — | — | — | |
| Mercury compounds | 4 | 4 | — | — | 0 | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| n-Hexane | 4,742 | 4,742 | — | — | 5 | |
| Toluene | 3,527 | 3,527 | — | — | 10 | |
| Propylene | 2,892 | 2,892 | — | — | — | |
| Benzene | 2,440 | 2,440 | — | — | 10,932 | ♦ Carcinogen |
| Xylene (mixed isomers) | 2,369 | 2,369 | — | — | 13 | |
| Ethylene | 1,767 | 1,767 | — | — | — | |
| Cumene | 576 | 576 | — | — | — | ♦ Carcinogen |
| Ethylbenzene | 250 | 250 | — | — | — | ♦ Carcinogen |
| Hydrogen sulfide | 221 | 221 | — | — | — | |
| Ammonia | 126 | 126 | — | — | — | |
| 1,2,4-Trimethylbenzene | 103 | 103 | — | — | 4 | |
| Phenanthrene | 85 | 85 | — | — | — | |
| Cyclohexane | 75 | 75 | — | — | 1 | |
| Mercury compounds | 27 | 3 | — | 24 | 1 | |
| Naphthalene | 8 | 8 | — | — | 1 | ♦ Carcinogen |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Propylene | 4,923 | 4,923 | — | — | — | |
| n-Hexane | 4,619 | 4,619 | — | — | 1 | |
| Toluene | 4,417 | 4,417 | — | — | 2 | |
| Xylene (mixed isomers) | 4,136 | 4,136 | — | — | 27 | |
| Benzene | 2,430 | 2,430 | — | — | 13 | ♦ Carcinogen |
| Ethylene | 1,923 | 1,923 | — | — | — | |
| Cumene | 732 | 732 | — | — | 4 | ♦ Carcinogen |
| Ethylbenzene | 284 | 284 | — | — | 4 | ♦ Carcinogen |
| Hydrogen sulfide | 240 | 240 | — | — | — | |
| Naphthalene | 235 | 235 | — | — | 1,483 | ♦ Carcinogen |
| Ammonia | 147 | 147 | — | — | — | |
| 1,2,4-Trimethylbenzene | 130 | 130 | — | — | 796 | |
| Phenanthrene | 109 | 109 | — | — | — | |
| Cyclohexane | 96 | 96 | — | — | 1 | |
| Mercury compounds | 35 | 10 | — | 25 | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Propylene | 6,079 | 6,079 | — | — | — | |
| n-Hexane | 4,457 | 4,457 | — | — | 14 | |
| Toluene | 3,596 | 3,596 | — | — | 29 | |
| Xylene (mixed isomers) | 3,312 | 3,312 | — | — | 37 | |
| Benzene | 2,228 | 2,228 | — | — | 10 | ♦ Carcinogen |
| Ethylene | 1,610 | 1,610 | — | — | — | |
| Cumene | 645 | 645 | — | — | — | ♦ Carcinogen |
| Naphthalene | 275 | 275 | — | — | 4 | ♦ Carcinogen |
| Hydrogen sulfide | 272 | 272 | — | — | — | |
| Ethylbenzene | 209 | 209 | — | — | — | ♦ Carcinogen |
| Ammonia | 130 | 130 | — | — | — | |
| 1,2,4-Trimethylbenzene | 115 | 115 | — | — | — | |
| Phenanthrene | 96 | 96 | — | — | — | |
| Cyclohexane | 79 | 79 | — | — | — | |
| Mercury compounds | 27 | 3 | — | 24 | 1 | |
| Lead | 11 | 11 | — | — | 186 | ♦ Carcinogen |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Toluene | 5,074 | 5,074 | — | — | 2 | |
| n-Hexane | 4,373 | 4,373 | — | — | 1 | |
| Propylene | 4,153 | 4,153 | — | — | — | |
| Xylene (mixed isomers) | 3,429 | 3,429 | — | — | 3 | |
| Benzene | 2,338 | 2,338 | — | — | 5 | ♦ Carcinogen |
| Ethylene | 2,178 | 2,178 | — | — | — | |
| Cumene | 615 | 615 | — | — | — | ♦ Carcinogen |
| Naphthalene | 489 | 489 | — | — | — | ♦ Carcinogen |
| Lead | 379 | 379 | — | — | 259 | ♦ Carcinogen |
| Ethylbenzene | 233 | 233 | — | — | — | ♦ Carcinogen |
| Hydrogen sulfide | 230 | 230 | — | — | — | |
| Ammonia | 141 | 141 | — | — | — | |
| 1,2,4-Trimethylbenzene | 110 | 110 | — | — | — | |
| Phenanthrene | 93 | 93 | — | — | — | |
| Cyclohexane | 76 | 76 | — | — | — | |
| Mercury compounds | 27 | 3 | — | 24 | — | |
| Polycyclic aromatic compounds | 11 | 11 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 7 | 7 | — | — | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Toluene | 4,840 | 4,840 | — | — | 6 | |
| Propylene | 4,701 | 4,701 | — | — | — | |
| n-Hexane | 4,387 | 4,387 | — | — | — | |
| Xylene (mixed isomers) | 3,447 | 3,447 | — | — | 2 | |
| Benzene | 2,709 | 2,709 | — | — | 46 | ♦ Carcinogen |
| Ethylene | 2,466 | 2,466 | — | — | — | |
| Cumene | 584 | 584 | — | — | — | ♦ Carcinogen |
| Naphthalene | 345 | 345 | — | — | 1 | ♦ Carcinogen |
| Hydrogen sulfide | 286 | 286 | — | — | — | |
| 1,2,4-Trimethylbenzene | 255 | 255 | — | — | 5 | |
| Ethylbenzene | 235 | 235 | — | — | 0 | ♦ Carcinogen |
| Lead | 185 | 185 | — | — | 187 | ♦ Carcinogen |
| Ammonia | 146 | 146 | — | — | — | |
| Phenanthrene | 90 | 90 | — | — | — | |
| Cyclohexane | 73 | 73 | — | — | — | |
| Mercury compounds | 26 | 3 | — | 23 | — | |
| Polycyclic aromatic compounds | 9 | 9 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 7 | 7 | — | — | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Toluene | 6,942 | 6,942 | — | — | — | |
| n-Hexane | 4,342 | 4,342 | — | — | — | |
| Ammonia | 3,975 | 3,975 | — | — | — | |
| Propylene | 3,235 | 3,235 | — | — | — | |
| Xylene (mixed isomers) | 2,867 | 2,867 | — | — | 7 | |
| Benzene | 1,947 | 1,947 | — | — | 118 | ♦ Carcinogen |
| Ethylene | 1,697 | 1,697 | — | — | — | |
| Lead | 962 | 962 | — | — | 279 | ♦ Carcinogen |
| Naphthalene | 914 | 914 | — | — | 38 | ♦ Carcinogen |
| Cumene | 500 | 500 | — | — | — | ♦ Carcinogen |
| Hydrogen sulfide | 266 | 266 | — | — | — | |
| 1,2,4-Trimethylbenzene | 255 | 255 | — | — | — | |
| Ethylbenzene | 210 | 210 | — | — | — | ♦ Carcinogen |
| Phenanthrene | 166 | 82 | — | 84 | — | |
| Cyclohexane | 62 | 62 | — | — | — | |
| Mercury compounds | 23 | 2 | — | 21 | — | |
| Polycyclic aromatic compounds | 16 | 16 | — | — | 7 | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 7 | 7 | — | — | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 7,430 | 7,430 | — | — | — | |
| Toluene | 6,506 | 6,506 | — | — | 3 | |
| n-Hexane | 4,407 | 4,407 | — | — | 5 | |
| Propylene | 3,977 | 3,977 | — | — | — | |
| Xylene (mixed isomers) | 2,896 | 2,896 | — | — | — | |
| Ethylene | 2,060 | 2,060 | — | — | — | |
| Benzene | 1,614 | 1,614 | — | — | 34 | ♦ Carcinogen |
| Naphthalene | 1,002 | 1,002 | — | — | — | ♦ Carcinogen |
| Cumene | 573 | 573 | — | — | — | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 255 | 255 | — | — | 2 | |
| Hydrogen sulfide | 199 | 199 | — | — | — | |
| Ethylbenzene | 181 | 181 | — | — | 5 | ♦ Carcinogen |
| Phenanthrene | 93 | 93 | — | — | — | |
| Cyclohexane | 75 | 75 | — | — | 1 | |
| Mercury compounds | 26 | 3 | — | 23 | — | |
| Polycyclic aromatic compounds | 17 | 17 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 8 | 8 | — | — | — | |
| 1,3-Butadiene | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|---|---|---|---|
| Ethylbenzene | — | — | — | 1,325 |
| Ethylene | — | — | — | 17,934 |
| Naphthalene | — | — | — | 162 |
| Benzene | — | 16 | 0 | 13,899 |
| Phenanthrene | — | — | — | 355 |
| n-Hexane | — | — | — | 29,866 |
| Benzo[g,h,i]perylene | — | — | — | 25 |
| Polycyclic aromatic compounds | — | — | — | 25 |
| Ammonia | — | — | — | 159,104 |
| 1,2,4-Trimethylbenzene | — | — | — | 454 |
| Cyclohexane | — | — | — | 704 |
| Xylene (mixed isomers) | — | — | — | 11,000 |
| Hydrogen sulfide | — | — | — | 110,974 |
| Cumene | — | — | — | 2,453 |
| Propylene | — | — | — | 122,977 |
| Toluene | — | — | — | 11,726 |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
CASPER LANDFILL, CITY OF
CASPER, WY
|
Lead compounds | 70 | — | — | — |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
Lead compounds | 30 | — | — | — |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
Naphthalene | 1 | — | — | — |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
Toluene | 2 | — | — | — |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
n-Hexane | 1 | — | — | — |
|
CLEAN HARBORS DEER TRAIL LLC
DEER TRAIL, CO
|
Benzene | — | — | — | 0 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Benzene | — | — | — | 0 |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Benzene | — | — | 0 | — |
|
US ECOLOGY TEXAS
ROBSTOWN, TX
|
Benzene | — | 16 | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Benzene | — | — | — | 0 |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
Benzene | 1 | — | — | — |
|
NORTH WELD SANITARY LANDFILL
AULT, CO
|
Xylene (mixed isomers) | 3 | — | — | — |
Transfers to Publicly-Owned Treatment Works (POTWs)
Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.
| Chemical | Transferred (lbs) | POTW |
|---|---|---|
| Benzene | 0 | CASPER WWTP, CASPER |
| Lead compounds | 0 | CASPER WWTP, CASPER |
| Mercury compounds | 0 | CASPER WWTP, CASPER |
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jan 15, 2019 | Sep 19, 2019 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Jan 15, 2019 | Sep 19, 2019 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jan 15, 2019 | Sep 9, 2019 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | Jan 15, 2019 | Sep 19, 2019 | Resolved |
| caa | HPV | Jun 2, 2016 | Aug 14, 2018 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Dec 2, 2014 | Aug 24, 2015 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Sep 10, 2009 | Jan 6, 2010 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | Sep 10, 2009 | Jan 6, 2010 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | Jul 9, 2008 | Jun 1, 2010 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Feb 7, 1996 | Sep 23, 1996 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring | Mar 28, 1990 | Jul 23, 1991 | Resolved |
| rcra | Violation of a formal enforcement agreement or order. (3008(a) or 3013) | Jun 15, 1989 | Jul 23, 1991 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring | Jun 15, 1989 | Jul 23, 1991 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Nov 9, 1988 | Nov 9, 1988 | Resolved |
| rcra | Land Disposal Restrictions: General | Nov 9, 1988 | Nov 10, 1988 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Nov 9, 1988 | Nov 9, 1988 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Oct 4, 1988 | Oct 6, 1988 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Apr 10, 1988 | Dec 1, 1988 | Resolved |
| rcra | Violation of a formal enforcement agreement or order. (3008(a) or 3013) | Apr 10, 1988 | Jun 15, 1989 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Feb 3, 1988 | Apr 4, 1988 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring | Apr 22, 1986 | Jan 12, 1987 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Aug 12, 1983 | Dec 27, 1985 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Nov 24, 1982 | Dec 4, 1982 | Resolved |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Administrative - Formal
· Case 08-1988-0061
Administrative - Formal
· Case 08-1989-0012
Administrative - Formal
· Case 08-1986-0134
Judicial
Clean Air Act
· Case 3600772371 · Jun 13, 2018
$31,500
Notice of Violation
Clean Air Act
· Case 3600772370 · Jul 5, 2016
Administrative - Formal
· Case EF-2013-8028 · Oct 31, 2012
$343,000
Administrative - Formal
· Case 08-1998-0196 · Feb 2, 1999
Administrative - Formal
· Case 08-1991-0131 · Dec 9, 1994
$20,000
Administrative - Formal
· Case 08-1991-0132 · Mar 29, 1994
$85,000
Judicial
· Case 08-1989-0067 · Jul 23, 1991
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-000 · Jul 23, 1991
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-010 · Jun 15, 1989
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-011 · Oct 5, 1988
FINAL IMMINENT HAZARD ORDER
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-007 · Apr 19, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-006 · Feb 3, 1988
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-004 · Sep 23, 1986
$12,000
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-002 · Dec 5, 1985
$1,250
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-WYD048743009-003 · Jun 29, 1984
$9,900
Other facilities in NATRONA County, WY
KOCH MATERIALS
EVANSVILLE, WY
VALLOUREC TUBE-ALLOY LLC
CASPER, WY
· Manufacturing
RYDER TRUCK RENTAL
CASPER, WY
J.W. WILLIAMS
CASPER, WY
NOV TUBOSCOPE MACHINING SERVICES
CASPER, WY