Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
CHS INC LAUREL REFINERY
Quick Summary
- •Released 254,160 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
-
803 US HIGHWAY 212 SOUTH
LAUREL, MT 59044
View on map ↗ - County
- YELLOWSTONE County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 324110
- Inspections
- 11 · last Mar 16, 2026
- Total Penalties
- $0 · last Apr 30, 2018
- Registry ID
- 110000595124
How This Compares
#7
of 55 TRI reporters in MT
#608
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
12
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
3
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)
-18% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 318,508 | — |
| 2016 | 255,815 | -20% |
| 2017 | 254,160 | -1% |
| 2018 | 291,631 | +15% |
| 2019 | 101,378 | -65% |
| 2020 | 149,982 | +48% |
| 2021 | 125,276 | -16% |
| 2022 | 133,875 | +7% |
| 2023 | 168,976 | +26% |
| 2024 | 260,750 | +54% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 113,394 | — | 113,394 | — | — | |
| Ammonia | 62,194 | 59,468 | 2,726 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 28,064 | 28,064 | — | — | — | |
| Propylene | 10,852 | 10,852 | — | — | — | |
| n-Hexane | 8,308 | 8,307 | 1 | — | 4 | |
| Methanol | 6,486 | 6,486 | — | — | — | |
| Xylene (mixed isomers) | 6,277 | 6,276 | 1 | — | 17,654 | |
| Hydrogen sulfide | 4,949 | 4,901 | 48 | — | — | |
| Toluene | 4,935 | 4,934 | 1 | — | 1,584 | |
| 1,2,4-Trimethylbenzene | 3,452 | 3,451 | 1 | — | 16 | |
| Benzene | 3,410 | 3,409 | 1 | — | 450 | ♦ Carcinogen |
| Naphthalene | 1,754 | 1,754 | — | — | 0 | ♦ Carcinogen |
| Ethylbenzene | 1,486 | 1,485 | 1 | — | 2,700 | ♦ Carcinogen |
| Cyclohexane | 1,428 | 1,427 | 1 | — | 2 | |
| Phenol | 1,231 | 1,128 | 103 | — | 0 | |
| Phenanthrene | 1,127 | 1,127 | — | — | — | |
| Tetrachloroethylene | 844 | 844 | — | — | — | ♦ Carcinogen |
| Zinc compounds | 299 | 299 | — | — | 24,575 | |
| Hydrogen fluoride | 201 | 201 | — | — | — | |
| Polycyclic aromatic compounds | 38 | 38 | — | — | 4 | ♦ Carcinogen |
| Molybdenum trioxide | 18 | 18 | — | — | 22,474 | ♦ Carcinogen |
| Cumene | 3 | 3 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 45,828 | — | 45,828 | — | — | |
| Ammonia | 29,990 | 29,144 | 846 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 21,593 | 21,593 | — | — | — | |
| Propylene | 16,003 | 16,003 | — | — | — | |
| n-Hexane | 11,632 | 11,631 | 1 | — | 2 | |
| Hydrogen sulfide | 6,766 | 6,742 | 24 | — | — | |
| Xylene (mixed isomers) | 6,740 | 6,739 | 1 | — | 386 | |
| Methanol | 5,293 | 5,293 | — | — | — | |
| Toluene | 4,752 | 4,751 | 1 | — | 210 | |
| Ethylene | 4,341 | 4,341 | — | — | — | |
| 1,2,4-Trimethylbenzene | 3,005 | 3,004 | 1 | — | 2 | |
| Benzene | 2,821 | 2,820 | 1 | — | 29 | ♦ Carcinogen |
| Naphthalene | 2,297 | 2,297 | — | — | 0 | ♦ Carcinogen |
| Cyclohexane | 1,579 | 1,578 | 1 | — | 1 | |
| Ethylbenzene | 1,454 | 1,453 | 1 | — | 126 | ♦ Carcinogen |
| Phenol | 1,143 | 1,093 | 50 | — | — | |
| Phenanthrene | 1,021 | 1,021 | — | — | — | |
| 1,3-Butadiene | 789 | 789 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 779 | 779 | — | — | 3,000 | ♦ Carcinogen |
| Hydrogen fluoride | 737 | 737 | — | — | — | |
| Zinc compounds | 269 | 269 | — | — | 11,823 | |
| Molybdenum trioxide | 65 | 65 | — | — | 55,841 | ♦ Carcinogen |
| Nickel compounds | 41 | 41 | — | — | 15,750 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 35 | 35 | — | — | — | ♦ Carcinogen |
| Cumene | 3 | 3 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 27,235 | 25,063 | 2,172 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 21,711 | 21,711 | — | — | — | |
| Propylene | 19,972 | 19,972 | — | — | — | |
| n-Hexane | 10,040 | 10,039 | 1 | — | 65 | |
| Ethylene | 8,137 | 8,137 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 7,726 | — | 7,726 | — | — | |
| Hydrogen sulfide | 6,743 | 6,695 | 48 | — | — | |
| Xylene (mixed isomers) | 5,888 | 5,887 | 1 | — | 5,601 | |
| Methanol | 5,276 | 5,276 | — | — | — | |
| Toluene | 4,725 | 4,724 | 1 | — | 530 | |
| 1,2,4-Trimethylbenzene | 3,264 | 3,263 | 1 | — | 997 | |
| Benzene | 2,962 | 2,961 | 1 | — | 38 | ♦ Carcinogen |
| Naphthalene | 2,094 | 2,094 | — | — | 796 | ♦ Carcinogen |
| Cyclohexane | 1,545 | 1,544 | 1 | — | 16 | |
| Ethylbenzene | 1,426 | 1,425 | 1 | — | 283 | ♦ Carcinogen |
| Phenanthrene | 1,293 | 1,293 | — | — | — | |
| Phenol | 1,138 | 1,111 | 27 | — | 3 | |
| 1,3-Butadiene | 957 | 957 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 789 | 789 | — | — | — | ♦ Carcinogen |
| Zinc compounds | 437 | 437 | — | — | 3,726 | |
| Hydrogen fluoride | 229 | 229 | — | — | — | |
| Carbon disulfide | 135 | 135 | — | — | — | |
| Carbonyl sulfide | 51 | 51 | — | — | — | |
| Polycyclic aromatic compounds | 42 | 42 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 36 | 36 | — | — | 45 | |
| Lead compounds | 23 | 23 | — | — | 94 | |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 32,972 | 31,798 | 1,174 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 22,359 | 22,359 | — | — | — | |
| Propylene | 14,389 | 14,389 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 9,665 | — | 9,665 | — | — | |
| n-Hexane | 6,757 | 6,756 | 1 | — | 11 | |
| Xylene (mixed isomers) | 5,782 | 5,781 | 1 | — | 531 | |
| Methanol | 5,326 | 5,326 | — | — | 600 | |
| Toluene | 4,552 | 4,551 | 1 | — | 397 | |
| Ethylene | 4,157 | 4,157 | — | — | — | |
| Hydrogen sulfide | 3,888 | 3,807 | 81 | — | — | |
| 1,2,4-Trimethylbenzene | 3,199 | 3,198 | 1 | — | 43 | |
| Benzene | 2,814 | 2,813 | 1 | — | 2 | ♦ Carcinogen |
| Cyclohexane | 1,528 | 1,527 | 1 | — | 1 | |
| Naphthalene | 1,486 | 1,486 | — | — | 1 | ♦ Carcinogen |
| Ethylbenzene | 1,374 | 1,373 | 1 | — | 151 | ♦ Carcinogen |
| Phenanthrene | 1,253 | 1,253 | — | — | — | |
| Phenol | 1,136 | 1,109 | 27 | — | — | |
| Tetrachloroethylene | 767 | 767 | — | — | 1,500 | ♦ Carcinogen |
| Hydrogen fluoride | 697 | 697 | — | — | — | |
| Zinc compounds | 440 | 440 | — | — | 1 | |
| 1,3-Butadiene | 345 | 345 | — | — | — | ♦ Carcinogen |
| Molybdenum trioxide | 137 | 137 | — | — | 123,807 | ♦ Carcinogen |
| Carbon disulfide | 70 | 70 | — | — | — | |
| Nickel compounds | 52 | 52 | — | — | 18,131 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 42 | 42 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 36 | 36 | — | — | 54 | |
| Carbonyl sulfide | 30 | 30 | — | — | — | |
| Lead compounds | 22 | 22 | — | — | 28 | |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 44,823 | 44,334 | 489 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 26,505 | 26,505 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 20,562 | — | 20,562 | — | — | |
| Propylene | 8,859 | 8,859 | — | — | — | |
| n-Hexane | 8,393 | 8,392 | 1 | — | 24 | |
| Xylene (mixed isomers) | 5,904 | 5,903 | 1 | — | 4,453 | |
| Methanol | 5,786 | 5,786 | — | — | — | |
| Hydrogen sulfide | 5,246 | 5,186 | 60 | — | — | |
| Toluene | 4,707 | 4,706 | 1 | — | 368 | |
| Ethylene | 4,077 | 4,077 | — | — | — | |
| 1,2,4-Trimethylbenzene | 3,192 | 3,191 | 1 | — | 113 | |
| Benzene | 2,924 | 2,923 | 1 | — | 47 | ♦ Carcinogen |
| Cyclohexane | 1,519 | 1,518 | 1 | — | 3 | |
| Naphthalene | 1,403 | 1,403 | — | — | 28 | ♦ Carcinogen |
| Ethylbenzene | 1,398 | 1,397 | 1 | — | 1,053 | ♦ Carcinogen |
| Phenanthrene | 1,239 | 1,239 | — | — | — | |
| Phenol | 1,144 | 1,115 | 29 | — | — | |
| Tetrachloroethylene | 888 | 888 | — | — | — | ♦ Carcinogen |
| Hydrogen fluoride | 700 | 700 | — | — | — | |
| 1,3-Butadiene | 501 | 501 | — | — | — | ♦ Carcinogen |
| Nickel compounds | 54 | 54 | — | — | 34,674 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 43 | 43 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 39 | 39 | — | — | 16 | |
| Carbon disulfide | 30 | 30 | — | — | — | |
| Lead compounds | 25 | 25 | — | — | 41 | |
| Carbonyl sulfide | 20 | 20 | — | — | — | |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 79,830 | — | 79,830 | — | — | |
| Propylene | 7,969 | 7,969 | — | — | — | |
| Methanol | 5,867 | 5,867 | — | — | — | |
| Hydrogen sulfide | 5,383 | 5,326 | 57 | — | — | |
| Naphthalene | 1,565 | 1,565 | — | — | 49 | ♦ Carcinogen |
| Hydrogen fluoride | 704 | 704 | — | — | — | |
| Mercury compounds | 36 | 36 | — | — | 40 | |
| Lead compounds | 24 | 24 | — | — | 131 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Propylene | 77,255 | 77,255 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 54,640 | — | 54,640 | — | — | |
| Ammonia | 48,253 | 47,822 | 431 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 28,003 | 28,003 | — | — | — | |
| n-Hexane | 27,073 | 27,072 | 1 | — | 62 | |
| 1,3-Butadiene | 10,929 | 10,929 | — | — | — | ♦ Carcinogen |
| Ethylene | 7,621 | 7,621 | — | — | — | |
| Xylene (mixed isomers) | 6,037 | 6,036 | 1 | — | 1,469 | |
| Methanol | 5,587 | 5,587 | — | — | — | |
| Toluene | 5,424 | 5,423 | 1 | — | 783 | |
| Hydrogen sulfide | 4,401 | 4,334 | 67 | — | — | |
| Benzene | 3,771 | 3,770 | 1 | — | 34 | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 3,188 | 3,187 | 1 | — | 174 | |
| Naphthalene | 2,001 | 2,001 | — | — | 2 | ♦ Carcinogen |
| Cyclohexane | 1,828 | 1,827 | 1 | — | 11 | |
| Ethylbenzene | 1,312 | 1,311 | 1 | — | 460 | ♦ Carcinogen |
| Phenanthrene | 1,244 | 1,244 | — | — | — | |
| Phenol | 1,142 | 1,113 | 29 | — | — | |
| Tetrachloroethylene | 912 | 912 | — | — | 5,800 | ♦ Carcinogen |
| Hydrogen fluoride | 717 | 717 | — | — | — | |
| Molybdenum trioxide | 128 | 128 | — | — | 116,158 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 47 | 47 | — | — | — | ♦ Carcinogen |
| Nickel compounds | 44 | 44 | — | — | 28,733 | ♦ Carcinogen |
| Mercury compounds | 39 | 39 | — | — | 50 | |
| Lead compounds | 23 | 23 | — | — | 107 | |
| Carbon disulfide | 5 | 5 | — | — | — | |
| Carbonyl sulfide | 5 | 5 | — | — | — | |
| Benzo[g,h,i]perylene | 2 | 2 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 58,145 | — | 58,145 | — | — | |
| Ammonia | 51,465 | 50,585 | 880 | — | — | |
| Propylene | 50,425 | 50,425 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 32,925 | 32,925 | — | — | — | |
| n-Hexane | 18,343 | 18,342 | 1 | — | 101 | |
| 1,3-Butadiene | 6,895 | 6,895 | — | — | — | ♦ Carcinogen |
| Ethylene | 5,488 | 5,488 | — | — | — | |
| Xylene (mixed isomers) | 5,257 | 5,256 | 1 | — | 2,486 | |
| Toluene | 5,108 | 5,107 | 1 | — | 729 | |
| Benzene | 3,978 | 3,977 | 1 | — | 63 | ♦ Carcinogen |
| Hydrogen sulfide | 2,616 | 2,543 | 73 | — | — | |
| 1,2,4-Trimethylbenzene | 2,061 | 2,060 | 1 | — | 304 | |
| Methanol | 1,934 | 1,934 | — | — | — | |
| Cyclohexane | 1,623 | 1,622 | 1 | — | 210 | |
| Naphthalene | 1,599 | 1,599 | — | — | — | ♦ Carcinogen |
| Ethylbenzene | 1,350 | 1,349 | 1 | — | 720 | ♦ Carcinogen |
| Phenanthrene | 1,258 | 1,258 | — | — | — | |
| Phenol | 1,130 | 1,116 | 14 | — | — | |
| Tetrachloroethylene | 1,063 | 1,063 | — | — | — | ♦ Carcinogen |
| Hydrogen fluoride | 707 | 707 | — | — | — | |
| Zinc compounds | 500 | 500 | — | — | 127 | |
| Molybdenum trioxide | 99 | 99 | — | — | 78,150 | ♦ Carcinogen |
| Nickel compounds | 66 | 66 | — | — | 13,901 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 48 | 48 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 40 | 40 | — | — | 44 | |
| Lead compounds | 24 | 24 | — | — | 159 | |
| Carbon disulfide | 6 | 6 | — | — | — | |
| Carbonyl sulfide | 5 | 5 | — | — | — | |
| Benzo[g,h,i]perylene | 2 | 2 | — | — | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 98,577 | — | 98,577 | — | — | |
| Ammonia | 38,976 | 38,870 | 106 | — | 8 | |
| Propylene | 37,452 | 37,452 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 24,604 | 24,604 | — | — | — | |
| n-Hexane | 14,876 | 14,875 | 1 | — | 27 | |
| Toluene | 5,628 | 5,627 | 1 | — | 592 | |
| Xylene (mixed isomers) | 5,532 | 5,531 | 1 | — | 647 | |
| 1,3-Butadiene | 4,934 | 4,934 | — | — | — | ♦ Carcinogen |
| Ethylene | 4,564 | 4,564 | — | — | — | |
| Benzene | 4,071 | 4,070 | 1 | — | 4 | ♦ Carcinogen |
| Hydrogen sulfide | 3,136 | 3,111 | 25 | — | — | |
| 1,2,4-Trimethylbenzene | 2,125 | 2,124 | 1 | — | 71 | |
| Methanol | 1,921 | 1,921 | — | — | — | |
| Cyclohexane | 1,767 | 1,766 | 1 | — | 4 | |
| Naphthalene | 1,481 | 1,481 | — | — | 5 | ♦ Carcinogen |
| Ethylbenzene | 1,435 | 1,434 | 1 | — | 216 | ♦ Carcinogen |
| Phenanthrene | 1,263 | 1,263 | — | — | — | |
| Phenol | 1,124 | 1,114 | 10 | — | — | |
| Tetrachloroethylene | 832 | 832 | — | — | — | ♦ Carcinogen |
| Hydrogen fluoride | 713 | 713 | — | — | — | |
| Zinc compounds | 532 | 532 | — | — | 40,400 | |
| Nickel compounds | 116 | 116 | — | — | 101 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 48 | 48 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 41 | 41 | — | — | — | |
| Molybdenum trioxide | 29 | 29 | — | — | 11,088 | ♦ Carcinogen |
| Lead compounds | 25 | 25 | — | — | 32 | |
| Carbon disulfide | 6 | 6 | — | — | — | |
| Carbonyl sulfide | 5 | 5 | — | — | — | |
| Benzo[g,h,i]perylene | 2 | 2 | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 95,138 | — | 95,138 | — | — | |
| Propylene | 70,716 | 70,716 | — | — | — | |
| Ammonia | 51,399 | 51,338 | 61 | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 30,034 | 30,034 | — | — | — | |
| n-Hexane | 24,685 | 24,682 | 1 | 2 | 43 | |
| 1,3-Butadiene | 9,854 | 9,854 | — | — | — | ♦ Carcinogen |
| Ethylene | 7,179 | 7,179 | — | — | — | |
| Xylene (mixed isomers) | 4,967 | 4,964 | 1 | 2 | 1,501 | |
| Toluene | 4,725 | 4,722 | 1 | 2 | 672 | |
| Benzene | 3,813 | 3,812 | 1 | — | 36 | ♦ Carcinogen |
| Hydrogen sulfide | 2,820 | 2,788 | 32 | — | — | |
| 1,2,4-Trimethylbenzene | 1,971 | 1,969 | 1 | 1 | 240 | |
| Methanol | 1,877 | 1,877 | — | — | — | |
| Naphthalene | 1,699 | 1,699 | — | — | 110 | ♦ Carcinogen |
| Cyclohexane | 1,558 | 1,556 | 1 | 1 | 3 | |
| Phenanthrene | 1,252 | 1,252 | — | — | — | |
| Phenol | 1,121 | 1,111 | 10 | — | — | |
| Ethylbenzene | 1,068 | 1,066 | 1 | 1 | 430 | ♦ Carcinogen |
| Tetrachloroethylene | 1,001 | 1,001 | — | — | — | ♦ Carcinogen |
| Hydrogen fluoride | 714 | 714 | — | — | — | |
| Zinc compounds | 645 | 645 | — | — | 117,869 | |
| Nickel compounds | 100 | 100 | — | — | 16,993 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 49 | 49 | — | — | — | ♦ Carcinogen |
| Molybdenum trioxide | 41 | 41 | — | — | 16,686 | ♦ Carcinogen |
| Mercury compounds | 41 | 41 | — | — | 1 | |
| Lead compounds | 29 | 29 | — | — | 34 | |
| Carbon disulfide | 6 | 6 | — | — | — | |
| Carbonyl sulfide | 5 | 5 | — | — | — | |
| Benzo[g,h,i]perylene | 2 | 2 | — | — | — |
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 |
|---|---|---|---|---|
| Methanol | — | — | — | 203,370 |
| Molybdenum trioxide | — | 21,063 | — | — |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | 27,864 |
| Phenanthrene | — | 19 | — | 1,193 |
| Xylene (mixed isomers) | — | 173 | — | 9,228 |
| Ethylbenzene | — | 33 | — | 1,478 |
| 1,2,4-Trimethylbenzene | — | 104 | — | 94 |
| Cyclohexane | — | 38 | — | 522 |
| Polycyclic aromatic compounds | — | 19 | — | 71 |
| Hydrogen fluoride | — | — | — | 133,407 |
| Phenol | — | — | — | 46,462 |
| Toluene | — | 157 | — | 2,694 |
| Naphthalene | — | 117 | — | 15,972 |
| n-Hexane | — | 78 | — | 172,844 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 16,226 |
| Propylene | — | 3,035 | — | 150,813 |
| Benzene | — | 115 | — | 1,923 |
| Ammonia | — | — | — | 9,098,571 |
| Hydrogen sulfide | — | — | — | 224,326 |
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 |
|---|---|---|---|---|---|
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Xylene (mixed isomers) | — | — | — | 3,125 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Xylene (mixed isomers) | — | — | — | 2,995 |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Xylene (mixed isomers) | — | — | — | 10 |
|
BURLINGTON ENVIRONMENTAL LLC TACOMA
TACOMA, WA
|
Xylene (mixed isomers) | — | — | — | 244 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Xylene (mixed isomers) | 616 | — | — | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Xylene (mixed isomers) | 8,282 | — | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Xylene (mixed isomers) | — | — | — | 2,351 |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Xylene (mixed isomers) | 31 | — | — | — |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Molybdenum trioxide | 1,407 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Molybdenum trioxide | 4 | — | — | — |
|
US ECOLOGY TEXAS
ROBSTOWN, TX
|
Molybdenum trioxide | — | 21,063 | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Ethylbenzene | — | — | — | 346 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Ethylbenzene | 155 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Ethylbenzene | 5 | — | — | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Ethylbenzene | 1,219 | — | — | — |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Ethylbenzene | — | — | — | 10 |
|
BURLINGTON ENVIRONMENTAL LLC TACOMA
TACOMA, WA
|
Ethylbenzene | — | — | — | 65 |
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Ethylbenzene | — | — | — | 460 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Ethylbenzene | — | — | — | 441 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
n-Hexane | 1 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
n-Hexane | 2 | — | — | — |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Polycyclic aromatic compounds | — | — | — | 4 |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Phenol | — | — | — | 0 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
1,2,4-Trimethylbenzene | 0 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
1,2,4-Trimethylbenzene | 6 | — | — | — |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
1,2,4-Trimethylbenzene | — | — | — | 10 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Naphthalene | 0 | — | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Toluene | — | — | — | 184 |
|
US ECOLOGY NEVADA, INC
BEATTY, NV
|
Toluene | — | — | — | 234 |
|
CHEMICAL WASTE MANAGEMENT OF THE NW
ARLINGTON, OR
|
Toluene | — | — | — | 10 |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Toluene | 648 | — | — | — |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Toluene | 16 | — | — | — |
|
BURLINGTON ENVIRONMENTAL LLC TACOMA
TACOMA, WA
|
Toluene | — | — | — | 240 |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Toluene | 7 | — | — | — |
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Toluene | — | — | — | 245 |
|
BURLINGTON ENVIRONMENTAL LLC TACOMA
TACOMA, WA
|
Benzene | — | — | — | 1 |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Benzene | — | — | — | 62 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Benzene | 12 | — | — | — |
|
US ECOLOGY IDAHO INC SITE B
GRAND VIEW, ID
|
Benzene | 217 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Benzene | 2 | — | — | — |
|
EMERALD SERVICES, INC. - TACOMA FACILITY
TACOMA, WA
|
Benzene | 0 | — | — | — |
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Benzene | — | — | — | 80 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.
KIMBALL, NE
|
Benzene | — | — | — | 77 |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Cyclohexane | 1 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Cyclohexane | 1 | — | — | — |
|
HIGH PLAINS SANITARY LANDFILL
FLOWEREE, MT
|
Zinc compounds | 24,570 | — | — | — |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Zinc compounds | 5 | — | — | — |
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 | Standards Applicable to Generators of HW: General | Mar 16, 2026 | Mar 16, 2026 | Resolved |
| rcra | Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs | Mar 17, 2025 | Mar 24, 2025 | Resolved |
| rcra | Standards for Used Oil: Generators | Mar 17, 2025 | Mar 17, 2025 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 17, 2025 | Mar 17, 2025 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Aug 16, 2024 | Dec 12, 2024 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Aug 16, 2024 | Dec 12, 2024 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Aug 16, 2024 | Dec 12, 2024 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP | Aug 16, 2024 | Dec 12, 2024 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Mar 18, 2024 | May 3, 2024 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 18, 2024 | May 3, 2024 | Resolved |
| rcra | Standards for Used Oil: Generators | Mar 18, 2024 | Mar 18, 2024 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | May 26, 2022 | May 26, 2022 | Resolved |
| rcra | Standards for Used Oi:l Processors and Re-Refiners | May 26, 2022 | Jun 2, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 15, 2019 | Mar 18, 2019 | Resolved |
| caa | FRV | Nov 22, 2017 | — | Open |
| rcra | Violation of a permit condition or requirement | Aug 21, 2017 | Dec 4, 2017 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Large Quantity Handlers | May 17, 2017 | May 17, 2017 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 17, 2017 | May 17, 2017 | Resolved |
| rcra | Violation of a permit condition or requirement | May 17, 2017 | Jul 18, 2017 | Resolved |
| caa | HPV | Oct 12, 2016 | May 1, 2018 | Resolved |
| caa | HPV | May 1, 2016 | May 1, 2018 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Feb 10, 2016 | Apr 13, 2016 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 20, 2015 | Oct 2, 2015 | Resolved |
| rcra | Standards for Used Oil: Generators | Oct 30, 2013 | Jan 23, 2014 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to Maintain Records | Oct 20, 2011 | Feb 10, 2012 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to Conduct Inspections | Oct 20, 2011 | Feb 10, 2012 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP | Oct 20, 2011 | Feb 10, 2012 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 18, 2011 | May 18, 2011 | Resolved |
| rcra | Violation of a Federal or State Statute | Jul 29, 2010 | Aug 26, 2010 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 28, 2010 | — | Open |
| rcra | Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Sep 29, 2009 | Apr 13, 2010 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jun 24, 2008 | Jun 24, 2008 | Resolved |
| rcra | Standards for Used Oil: Generators | Jun 24, 2008 | Oct 27, 2008 | Resolved |
| rcra | Violation of a Federal or State Statute | Jun 24, 2008 | Mar 3, 2009 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jun 24, 2008 | Oct 27, 2008 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jun 24, 2008 | Jun 24, 2008 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 28, 2008 | — | Open |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jun 26, 2007 | Aug 28, 2007 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jun 26, 2007 | Aug 28, 2007 | Resolved |
| rcra | Standards for Used Oil: Generators | Jun 26, 2007 | Jun 27, 2007 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Dec 2, 2006 | Dec 11, 2006 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 14, 2005 | Apr 17, 2006 | Resolved |
| rcra | Standards for Used Oil: Generators | Oct 14, 2005 | Oct 14, 2005 | Resolved |
| rcra | Standards for Used Oil: Generators | Oct 13, 2004 | Dec 20, 2004 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Sep 24, 2003 | Jan 26, 2004 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jan 16, 2003 | Jan 26, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 15, 2002 | Jun 12, 2002 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Apr 26, 2002 | May 24, 2002 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Nov 16, 1999 | Jan 25, 2000 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 23, 1998 | Nov 10, 1998 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.20 mg/L | 0.10 | +100% | Jun 2025 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.70 mg/L | 0.10 | +600% | Jun 2021 | Open |
| Xylene [mix of m+o+p] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Oct 2018 | Open |
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.
BACK IN COMPLIANCE LTR
RCRA (Hazardous Waste)
· Case RCRA-MTD006238083-002 · Jun 13, 2022
Administrative - Formal
Clean Air Act
· Case 3601047102 · Apr 30, 2018
$177,950
Administrative - Formal
Clean Air Act
· Case 3601491971 · Apr 30, 2018
$177,950
Notice of Violation
Clean Air Act
· Case 3601332364 · Feb 5, 2018
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-MTD006238083-004 · Jun 15, 2017
Notice of Violation
Clean Air Act
· Case 3600836436 · Oct 12, 2016
Notice of Violation
Clean Air Act
· Case 3600728751 · May 17, 2016
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-MTD006238083-001 · Jan 23, 2014
Administrative - Formal
· Case 08-2009-0092 · Apr 22, 2009
$8,769
Administrative - Formal
· Case 08-2004-0059 · Mar 11, 2004
$68,500
Judicial
· Case 08-2002-0049 · Feb 23, 2004
$171,875
Administrative - Formal
· Case 08-2002-0137 · Sep 26, 2002
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-MTD006238083-000 · Nov 13, 1998
Judicial
· Case 08-1991-0070 · Dec 1, 1993
$316,000
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-MTD006238083-003 · Jan 8, 1987
Other facilities in YELLOWSTONE County, MT
HI TECH AUTO BODY & PAINT INC
BILLINGS, MT
MT DEPT OF TRANSPORTATION CANYON CREEK 318 PERMIT
BILLINGS, MT
GOLDEN EAGLE WATER USERS ASSN
BILLINGS, MT
SHEPHERD SCHOOLS-TREATMENT PLANT FOR WELL 1 2 3
SHEPHERD, MT
WESTERN PLAINS MACHINERY
BILLINGS, MT
USDOE WAP CUSTER SUBSTATION
CUSTER, MT