EmissionsLookup
Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

PREMCOR REFINING GROUP, INC. - LIMA REFINERY

Quick Summary

  • •Released 237,360 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 $19,015,000 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
1150 SOUTH METCALF STREET
LIMA, OH 45804
View on map ↗
County
ALLEN County
Industry
Manufacturing
NAICS (North American Industry Classification)
324110
Inspections
10 · last Feb 10, 2026
Total Penalties
$19,015,000 · last Jan 16, 2025
Registry ID
110000395475

How This Compares

#41 of 1,142 TRI reporters in OH
#634 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.

4
Air (CAA)
Qtrs Non-Compliant
8
Water (CWA)
Qtrs Non-Compliant
6
Hazardous Waste (RCRA)
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) -20% overall
Year Total Releases (lbs) vs Prior Year
2015 206,161 —
2016 202,462 -2%
2017 237,360 +17%
2018 192,536 -19%
2019 219 -100%
2020 114,184 +52060%
2021 149,760 +31%
2022 151,376 +1%
2023 155,894 +3%
2024 164,183 +5%

2024

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 32 ♦ Carcinogen
Toluene 32,439 32,406 — 33 24
Propylene 28,908 28,908 — — —
Xylene (mixed isomers) 20,792 20,777 — 15 66
Ammonia 19,763 19,172 591 — 24
Benzene 14,091 14,057 — 34 46 ♦ Carcinogen
Ethylene 13,256 13,256 — — —
n-Hexane 12,865 12,856 — 9 —
1,2,4-Trimethylbenzene 5,837 5,830 — 7 —
Ethylbenzene 4,280 4,275 — 5 28 ♦ Carcinogen
Carbonyl sulfide 3,172 3,172 — — —
Cyclohexane 2,359 2,353 — 6 —
Naphthalene 1,769 1,762 — 7 21 ♦ Carcinogen
Carbon disulfide 1,089 1,089 — — 2
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 963 963 — — —
Cumene 774 774 — — — ♦ Carcinogen
Hydrogen sulfide 643 643 — — —
Methanol 478 478 — — —
1,3-Butadiene 436 436 — — — ♦ Carcinogen
Polycyclic aromatic compounds 216 216 — — — ♦ Carcinogen
Phenanthrene 27 27 — — 6
Lead compounds 21 11 9 — 1,451
Mercury compounds 5 5 0 0 14
Benzo[g,h,i]perylene 0 0 — 0 —
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2023

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 5,702 ♦ Carcinogen
Toluene 28,515 28,463 — 52 252
Propylene 26,164 26,164 — — —
Ammonia 19,019 18,671 348 — 8,433
n-Hexane 16,287 16,280 — 7 —
Xylene (mixed isomers) 14,862 14,802 — 60 528
Ethylene 14,839 14,839 — — —
Benzene 14,000 13,968 — 32 59 ♦ Carcinogen
Cyclohexane 7,006 7,004 — 2 —
Carbonyl sulfide 3,716 3,716 — — —
Ethylbenzene 3,238 3,215 — 23 116 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,994 2,976 — 18 —
Naphthalene 1,389 1,314 — 75 86 ♦ Carcinogen
Carbon disulfide 1,277 1,277 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 1,004 1,004 — — —
Hydrogen sulfide 737 737 — — —
Methanol 320 319 — 1 —
Polycyclic aromatic compounds 290 290 — — — ♦ Carcinogen
Cumene 204 201 — 3 — ♦ Carcinogen
Phenanthrene 15 12 — 3 2
Lead compounds 12 8 4 — 1,872
Mercury compounds 5 5 — 0 20
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen
Benzo[g,h,i]perylene 0 0 — 0 —

2022

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 36 ♦ Carcinogen
Toluene 29,812 29,801 — 11 172
Propylene 27,340 27,340 — — —
Ethylene 20,375 20,375 — — —
Xylene (mixed isomers) 15,487 15,439 — 48 352
Ammonia 13,266 13,224 42 — 6,681
Benzene 12,444 12,443 — 1 66 ♦ Carcinogen
n-Hexane 11,256 11,233 — 23 —
Carbonyl sulfide 4,111 4,111 — — —
1,2,4-Trimethylbenzene 3,782 3,770 — 12 —
Ethylbenzene 3,622 3,612 — 10 74 ♦ Carcinogen
Cyclohexane 3,337 3,336 — 1 —
Hydrogen sulfide 1,626 1,626 — — —
Carbon disulfide 1,412 1,412 — — 1
Naphthalene 1,238 1,235 — 3 53 ♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 1,001 1,001 — — —
Methanol 593 575 — 18 —
Polycyclic aromatic compounds 288 288 — — — ♦ Carcinogen
Cumene 247 247 — — — ♦ Carcinogen
Nickel compounds 111 111 — — 954 ♦ Carcinogen
Phenanthrene 13 13 — — 6
Lead compounds 9 9 1 — 1,697
Mercury compounds 5 5 — 0 65
Molybdenum trioxide 1 1 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen
Benzo[g,h,i]perylene 0 0 — — —

2021

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 28 ♦ Carcinogen
Cresol (mixed isomers) — — — — 58
Propylene 61,268 61,268 — — —
Toluene 23,294 23,279 — 15 211
Xylene (mixed isomers) 12,807 12,789 — 18 448
Benzene 11,591 11,586 — 5 60 ♦ Carcinogen
Ammonia 11,173 11,129 43 1 12,731
Ethylene 10,947 10,947 — — —
n-Hexane 7,450 7,414 — 36 —
1,2,4-Trimethylbenzene 3,160 3,159 — 1 —
Ethylbenzene 2,913 2,903 — 10 101 ♦ Carcinogen
Cyclohexane 2,800 2,788 — 12 —
Naphthalene 746 744 — 2 77 ♦ Carcinogen
Hydrogen sulfide 606 605 — 1 —
Methanol 464 367 — 97 —
Cumene 182 182 — — — ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 145 — 145 — 4,421
Nickel compounds 87 87 — — 1,009 ♦ Carcinogen
Zinc compounds 42 38 4 — 2,803
1,3-Butadiene 28 28 — — — ♦ Carcinogen
Cobalt compounds 23 23 — — 60 ♦ Carcinogen
Biphenyl 18 18 — — —
Lead 9 8 1 — 903 ♦ Carcinogen
Mercury 6 6 — 0 44
Molybdenum trioxide 1 1 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2020

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 36 ♦ Carcinogen
Propylene 23,259 23,259 — — —
Toluene 21,021 20,872 — 149 11
Benzene 14,010 14,009 — 1 1,535 ♦ Carcinogen
Ethylene 11,615 11,615 — — —
Ammonia 11,591 11,504 87 — 15,410
Xylene (mixed isomers) 11,341 11,337 — 4 43
n-Hexane 6,539 6,535 — 4 —
Hydrogen sulfide 5,422 5,422 — — 668
1,2,4-Trimethylbenzene 2,802 2,802 — 0 1
Ethylbenzene 2,578 2,576 — 2 15 ♦ Carcinogen
Cyclohexane 2,204 2,204 — — 1
Naphthalene 968 967 — 1 15 ♦ Carcinogen
Methanol 317 317 — — 4,760
Cumene 172 172 — 0 0 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 110 — 110 — 545
Nickel compounds 89 89 — — 432 ♦ Carcinogen
Zinc compounds 55 38 17 — 931
1,3-Butadiene 26 26 — — — ♦ Carcinogen
Cobalt compounds 23 23 — — 52 ♦ Carcinogen
Biphenyl 19 19 — 0 —
Lead 15 8 8 — 480 ♦ Carcinogen
Mercury 4 4 0 0 12
Molybdenum trioxide 1 1 — — — ♦ Carcinogen
Cresol (mixed isomers) 0 0 — 0 86
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2019

Chemical Total (lbs) Air Water Land Off-Site
Cumene 178 177 — 0 80 ♦ Carcinogen
Lead 37 37 1 — 1,254 ♦ Carcinogen
Cresol (mixed isomers) 4 4 — — 96

2018

Chemical Total (lbs) Air Water Land Off-Site
Cobalt compounds — — — — — ♦ Carcinogen
Tetrachloroethylene — — — — 115 ♦ Carcinogen
Ammonia 62,362 56,215 6,146 — 3,936
Propylene 19,750 19,750 — — —
Xylene (mixed isomers) 18,850 18,074 — 775 392
Toluene 18,583 18,555 — 27 396
Ethylene 17,727 17,727 — — —
Benzene 16,217 16,208 — 9 3,368 ♦ Carcinogen
n-Hexane 12,383 12,383 — — —
Cyclohexane 8,915 8,897 — 17 —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 7,305 — 7,305 — 398
Hydrogen sulfide 3,031 3,031 — 0 —
Ethylbenzene 2,690 2,670 — 20 58 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,254 2,202 — 52 —
Methanol 1,178 1,178 — — —
Naphthalene 426 369 — 58 156 ♦ Carcinogen
1,3-Butadiene 256 256 — — — ♦ Carcinogen
Cumene 163 156 — 7 — ♦ Carcinogen
Zinc compounds 128 128 — — 4,509
Lead 107 41 66 — 5,946 ♦ Carcinogen
Nickel compounds 89 89 — — — ♦ Carcinogen
Molybdenum trioxide 73 73 — — — ♦ Carcinogen
Biphenyl 43 40 — 4 —
Mercury 6 6 0 — 72
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen
Cresol (mixed isomers) 0 0 — — 74

2017

Chemical Total (lbs) Air Water Land Off-Site
Nitric acid — — — — —
Tetrachloroethylene — — — — — ♦ Carcinogen
Ammonia 69,498 62,996 6,503 — 1,697
Propylene 46,374 46,374 — — 97
Ethylene 29,908 29,908 — — —
Toluene 28,467 28,361 — 106 1,604
Benzene 17,078 17,062 — 15 1,748 ♦ Carcinogen
Xylene (mixed isomers) 14,770 14,534 — 236 4,831
n-Hexane 13,198 13,096 — 102 446
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 5,788 — 5,788 — 446
Ethylbenzene 3,049 3,028 — 21 1,551 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,770 2,709 — 61 —
Hydrogen sulfide 2,655 2,655 — 0 2
Cyclohexane 1,965 1,957 — 8 —
Methanol 530 530 — — —
Naphthalene 453 428 — 24 3,412 ♦ Carcinogen
1,3-Butadiene 284 283 — 1 — ♦ Carcinogen
Phenol 269 17 252 — 180
Cumene 145 144 — 1 — ♦ Carcinogen
Lead 103 59 44 — 1,041 ♦ Carcinogen
Styrene 25 25 — — 852 ♦ Carcinogen
Biphenyl 14 12 — 1 —
Mercury 8 8 0 — 35
Cresol (mixed isomers) 7 6 — 2 519
Molybdenum trioxide 2 2 — — 1 ♦ Carcinogen
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2016

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — — ♦ Carcinogen
Nitric acid — — — — —
Ammonia 71,923 60,083 11,840 — 12,786
Propylene 29,729 29,729 — — —
Toluene 24,377 23,775 — 601 1,167
Ethylene 15,045 15,045 — — —
Benzene 11,854 11,623 — 232 267 ♦ Carcinogen
Xylene (mixed isomers) 11,854 11,152 — 703 2,397
n-Hexane 10,590 9,787 — 803 —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 8,403 — 8,403 — 460
Methanol 4,795 4,795 — — —
Cyclohexane 3,879 3,361 — 519 —
Hydrogen sulfide 2,973 2,973 — 0 —
Ethylbenzene 2,681 2,513 — 168 507 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,851 1,828 — 23 —
1,3-Butadiene 1,620 1,620 — 0 — ♦ Carcinogen
Naphthalene 333 328 — 6 356 ♦ Carcinogen
Phenol 279 17 262 — 755
Cumene 108 108 — 0 — ♦ Carcinogen
Lead 63 50 14 — 2,437 ♦ Carcinogen
n-Butyl alcohol 55 55 — — —
Styrene 19 19 — — 6 ♦ Carcinogen
Biphenyl 11 11 — 0 —
Cresol (mixed isomers) 7 7 — 0 352
Mercury 7 7 0 — 82
Molybdenum trioxide 4 4 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2015

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — — ♦ Carcinogen
Ammonia 75,129 65,486 9,643 0 2,135
Toluene 31,973 31,934 — 38 17
Propylene 25,566 25,565 — 0 —
Xylene (mixed isomers) 14,465 14,342 — 122 314
Benzene 13,566 13,381 — 184 9 ♦ Carcinogen
n-Hexane 11,264 10,899 — 365 —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 10,870 — 10,870 — 77
Hydrogen sulfide 6,048 6,047 — 0 —
Ethylene 5,597 5,597 — — —
Ethylbenzene 3,421 3,360 — 61 8 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,619 2,583 — 36 —
Cyclohexane 2,205 2,205 — — —
Naphthalene 1,049 869 — 180 773 ♦ Carcinogen
1,3-Butadiene 675 675 — — — ♦ Carcinogen
Molybdenum trioxide 513 513 — — — ♦ Carcinogen
Methanol 399 399 — — —
Phenol 360 32 305 23 140
Cumene 218 214 — 4 — ♦ Carcinogen
Lead 57 55 0 1 1,819 ♦ Carcinogen
Biphenyl 55 42 — 13 —
Styrene 48 48 — 0 — ♦ Carcinogen
Chlorodifluoromethane (HCFC-22) 36 36 — — —
Cresol (mixed isomers) 19 17 — 3 79
Mercury 12 7 — 4 561
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
Lead compounds — 15 — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) — — — 14,024
Tetrachloroethylene — 1 — —
Mercury compounds — 8 — —
Naphthalene — 8,707 7 88
Carbonyl sulfide — — — 155,420
Hydrogen sulfide — — — 32,595
Cumene — 539 — 892
Carbon disulfide — — — 53,135
Benzo[g,h,i]perylene — — — 0
Phenanthrene — — — 2
Propylene — — — 1,301,558
Xylene (mixed isomers) — 27,442 49 69,268
Benzene — 4,384 4 19,506
Polycyclic aromatic compounds — — — 75
Ethylbenzene — — 10 15,779
1,2,4-Trimethylbenzene — 3,901 — 40,343
Toluene — 12,450 24 23,933
Ethylene — — — 131,629
1,3-Butadiene — — — 7,417
Ammonia — — — 463,773
Methanol — — — 559,354
n-Hexane — 36,870 — 24,088
Cyclohexane — — — 11,804

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 CANADA, INC.
CORUNNA
Ammonia — — — —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Ammonia — — — 24
CHEROKEE RUN LANDFILL
BELLEFONTAINE, OH
Mercury compounds 0 — — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Mercury compounds 2 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Mercury compounds 4 — — —
HYDROCHEMPSC
LUDINGTON, MI
Mercury compounds — — — —
CLEAN HARBORS SAN LEON
SAN LEON, TX
Mercury compounds — 0 — —
HERITAGE - CRYSTAL CLEAN, LLC
INDIANAPOLIS, IN
Mercury compounds — 0 — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Mercury compounds — 0 — —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Mercury compounds 0 — — —
LONE STAR GREENCASTLE WDF
GREENCASTLE, IN
Mercury compounds — — — —
VEOLIA ES TECHNICAL SOLUTIONS LLC
WEST CARROLLTON, OH
Mercury compounds — 7 — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Mercury compounds — 0 — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Naphthalene — — 7 —
CLEAN HARBORS CANADA, INC.
CORUNNA
Naphthalene 13 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Naphthalene 1 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Phenanthrene 6 — — —
LONE STAR GREENCASTLE WDF
GREENCASTLE, IN
Benzene — — 0 —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Benzene — — — 0
CLEAN HARBORS SAN LEON
SAN LEON, TX
Benzene — 3 — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Benzene — 21 — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Benzene — — 4 —
HYDROCHEMPSC
LUDINGTON, MI
Benzene — — — —
CHEROKEE RUN LANDFILL
BELLEFONTAINE, OH
Benzene 5 — — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Benzene 4 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Benzene 9 — — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Ethylbenzene 9 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Ethylbenzene 9 — — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Ethylbenzene — — 10 —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Lead compounds 1,106 — — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Lead compounds 228 — — —
CHEROKEE RUN LANDFILL
BELLEFONTAINE, OH
Lead compounds 103 — — —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Lead compounds 1 — — —
LONE STAR GREENCASTLE WDF
GREENCASTLE, IN
Lead compounds — 1 — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Lead compounds — 7 — —
HYDROCHEMPSC
LUDINGTON, MI
Lead compounds — 0 — —
CLEAN HARBORS SAN LEON
SAN LEON, TX
Lead compounds — 4 — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Lead compounds — 2 — —
HERITAGE - CRYSTAL CLEAN, LLC
INDIANAPOLIS, IN
Lead compounds — 0 — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Tetrachloroethylene 1 — — —
CHEROKEE RUN LANDFILL
BELLEFONTAINE, OH
Tetrachloroethylene 14 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Tetrachloroethylene 16 — — —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Tetrachloroethylene — — — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Tetrachloroethylene — — — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Tetrachloroethylene — — — —
CLEAN HARBORS SAN LEON
SAN LEON, TX
Tetrachloroethylene — 1 — —
LONE STAR GREENCASTLE WDF
GREENCASTLE, IN
Tetrachloroethylene — — — —
HYDROCHEMPSC
LUDINGTON, MI
Tetrachloroethylene — — — —
CLEAN HARBORS CANADA, INC.
CORUNNA
Toluene — — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Toluene — — — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Toluene — — 24 —
CLEAN HARBORS CANADA, INC.
CORUNNA
Xylene (mixed isomers) 17 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Xylene (mixed isomers) — — — —
SYSTECH ENVIRONMENTAL CORPORATION
PAULDING, OH
Xylene (mixed isomers) — — 49 —
CLEAN HARBORS CANADA, INC.
CORUNNA
Carbon disulfide 1 — — —
CHEROKEE RUN LANDFILL
BELLEFONTAINE, OH
Carbon disulfide 1 — — —
COUNTY ENVIRONMENTAL OF WYANDOT LANDFILL
CAREY, OH
Carbon disulfide — — — —
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
CLEVELAND, OH
Carbon disulfide — — — —
CLEAN HARBORS SAN LEON
SAN LEON, TX
Carbon disulfide — — — —
HYDROCHEMPSC
LUDINGTON, MI
Carbon disulfide — — — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Carbon disulfide — — — —

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
caa — — — Open
caa — — — Open
caa — — — Open
caa — — — Open
rcra Standards Applicable to Generators of HW: General Feb 10, 2026 Feb 10, 2026 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Feb 10, 2026 Feb 27, 2026 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program General Information Dec 1, 2025 Dec 1, 2025 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Dec 1, 2025 Dec 1, 2025 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program Permit Application Dec 1, 2025 Dec 1, 2025 Resolved
caa FRV Oct 20, 2025 — Open
rcra Standards for Used Oil: Generators Mar 4, 2025 Mar 7, 2025 Resolved
rcra Standards Applicable to Generators of HW: General Mar 4, 2025 Mar 4, 2025 Resolved
caa FRV Feb 13, 2025 — Open
caa FRV Mar 10, 2024 — Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems Jan 17, 2024 Feb 9, 2024 Resolved
caa FRV Nov 21, 2023 — Open
caa FRV Oct 16, 2023 — Open
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Jun 7, 2023 Jun 7, 2023 Resolved
rcra Standards for Used Oil: Generators Jun 7, 2023 Jun 7, 2023 Resolved
rcra Standards Applicable to Generators of HW: General Jun 7, 2023 Jun 7, 2023 Resolved
caa FRV Nov 19, 2022 — Open
caa FRV Sep 30, 2022 — Open
caa FRV Feb 18, 2022 — Open
caa FRV Jan 31, 2020 — Open
caa FRV Feb 22, 2019 — Open
caa FRV Nov 16, 2018 — Open
caa FRV Sep 28, 2018 — Open
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards May 4, 2018 May 4, 2018 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program General Information May 1, 2018 Sep 7, 2018 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 1, 2018 Sep 7, 2018 Resolved
rcra Violation of a permit condition or requirement May 1, 2018 May 31, 2018 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program Permit Application May 1, 2018 Sep 7, 2018 Resolved
caa FRV Jun 30, 2017 — Open
cwa Schedule Event achieved late but reported Apr 6, 2017 — Open
cwa Schedule Event reported late Apr 6, 2017 — Open
caa FRV Aug 19, 2016 — Open
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Aug 18, 2016 Sep 30, 2016 Resolved
rcra Standards Applicable to Generators of HW: General Aug 18, 2016 Sep 30, 2016 Resolved
caa FRV Jun 17, 2016 — Open
rcra Standards for Used Oil: Generators Sep 28, 2015 Oct 2, 2015 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Sep 28, 2015 Oct 2, 2015 Resolved
rcra Violation of a permit condition or requirement Apr 25, 2008 Nov 15, 2010 Resolved
rcra Violation of a permit condition or requirement Apr 28, 2006 Jul 17, 2006 Resolved
rcra Standards for Owners and Operators of HW TSDs: Financial Requirements Apr 28, 2006 Jul 17, 2006 Resolved
rcra Standards for Owners and Operators of HW TSDs: Financial Requirements May 24, 2004 Jun 22, 2004 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Feb 20, 2002 Apr 3, 2002 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jun 12, 2001 Jul 23, 2001 Resolved
rcra Standards Applicable to Generators of HW: General Jun 11, 2001 Jan 30, 2002 Resolved
rcra Land Disposal Restrictions: General Jun 11, 2001 Jan 30, 2002 Resolved
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators Jun 11, 2001 Jan 30, 2002 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
Oxygen, dissolved [DO] DMR, Limited - Numeric Violation 4.90 mg/L 5.00 +2% Oct 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 2.84 mg/L 2.45 +16% Sep 2025 Open
Oxygen, dissolved [DO] DMR, Limited - Numeric Violation 4.70 mg/L 5.00 +6% Sep 2025 Open
Oxygen, dissolved [DO] DMR, Limited - Numeric Violation 4.90 mg/L 5.00 +2% Sep 2025 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 1.42 toxic 1.00 +42% Sep 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 3.10 mg/L 2.45 +27% Aug 2025 Open
Solids, total suspended DMR, Limited - Numeric Violation 23.00 mg/L 20.00 +15% Jul 2025 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 0.36 mg/L 0.30 +20% Jul 2025 Open
Solids, total suspended DMR, Limited - Numeric Violation 21.00 mg/L 20.00 +5% Jul 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 2.81 mg/L 2.45 +15% Jul 2025 Open
Oxygen, dissolved [DO] DMR, Limited - Numeric Violation 3.90 mg/L 5.00 +22% Jul 2025 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 52.00 mg/L 45.10 +15% Jul 2025 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 0.15 mg/L 0.13 +15% Jul 2025 Open
Solids, total suspended DMR, Limited - Numeric Violation 37.00 mg/L 31.40 +18% Jul 2025 Open
Mercury, total low level DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +37% Jun 2025 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 3.29 toxic 1.00 +229% Jun 2025 Open
Oxygen, dissolved [DO] DMR, Limited - Numeric Violation 4.50 mg/L 5.00 +10% May 2025 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 2.71 toxic 1.00 +171% Mar 2025 Open
Mercury, total low level DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +126% Mar 2025 Open
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.13 mg/L 0.11 +17% Mar 2025 Open
Mercury, total low level DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +18% Mar 2025 Open
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.94 mg/L 0.11 +721% Mar 2025 Resolved
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.94 mg/L 0.47 +99% Mar 2025 Open
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.15 mg/L 0.11 +34% Feb 2025 Resolved
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.12 mg/L 0.11 +8% Feb 2025 Open
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.14 mg/L 0.11 +20% Jan 2025 Open
Selenium, total recoverable DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +8% Jul 2024 Open
Phenolics, total recoverable DMR, Limited - Numeric Violation 0.21 mg/L 0.11 +80% May 2024 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 2.60 mg/L 2.45 +6% May 2024 Open
Flow, in conduit or thru treatment plant DMR, Limited - Numeric Violation 2.40 MGD 2.00 +20% May 2024 Open
Oil and grease [soxhlet extr.] tot. DMR, Limited - Numeric Violation 14.00 mg/L 10.00 +40% Mar 2024 Open
Selenium, total recoverable DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +3% Feb 2024 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 2.40 toxic 1.00 +140% Jan 2024 Open
Toxicity [chronic], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 10.74 toxic 3.95 +172% Jan 2024 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 71.40 kg/d 50.00 +43% Oct 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 111.00 kg/d 100.00 +11% Oct 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 3.22 mg/L 2.45 +31% Oct 2023 Open
Selenium, total recoverable DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +4% Feb 2022 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 1.51 toxic 1.00 +51% Jan 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 1,650.00 kg/d 1,047.00 +58% Dec 2021 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 2.64 mg/L 2.45 +8% Jun 2021 Open
Toxicity [chronic], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 7.60 toxic 3.95 +92% Jul 2020 Open
Solids, total dissolved- 180 deg. C DMR, Limited - Numeric Violation 5,821.03 kg/d 71.20 +8,076% May 2020 Open
Chlorine, total residual DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +41% May 2020 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 1.06 toxic 1.00 +6% Apr 2020 Open
Flow, in conduit or thru treatment plant DMR, Limited - Numeric Violation 2.96 MGD 2.00 +48% Feb 2020 Open
Oil and grease [soxhlet extr.] tot. DMR, Limited - Numeric Violation 13.00 mg/L 10.00 +30% Jan 2020 Open
Oil and grease [soxhlet extr.] tot. DMR, Limited - Numeric Violation 13.00 mg/L 10.00 +30% Jan 2020 Open
Toxicity [acute], Pimephales promelas [Fathead Minnow] DMR, Limited - Numeric Violation 1.90 toxic 1.00 +90% Jan 2020 Open
Solids, total suspended DMR, Limited - Numeric Violation 46.00 mg/L 33.10 +39% Jan 2020 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.

WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OHR000032151-014 · Mar 6, 2026
Director-Division Warning Letter
RCRA (Hazardous Waste) · Case RCRA-OHR000032151-013 · Dec 1, 2025
Notice of Violation
Clean Air Act · Case 3604609231 · Oct 9, 2025
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OHR000032151-012 · Apr 3, 2025
Notice of Violation
Clean Air Act · Case 3604261530 · Feb 4, 2025
Judicial
· Case 05-2023-5022 · Jan 16, 2025
$19,000,000
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OHR000032151-011 · Mar 8, 2024
Notice of Violation
Clean Air Act · Case 3603899659 · Mar 5, 2024
Notice of Violation
Clean Air Act · Case 3603792109 · Nov 13, 2023
Notice of Violation
Clean Air Act · Case 3603753829 · Oct 11, 2023
Administrative - Formal
· Case 05-2023-7804 · Jul 10, 2023
$15,000
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OHR000032151-010 · Jun 23, 2023
Notice of Violation
Clean Air Act · Case 3603014831 · Mar 3, 2022
Notice of Violation
Clean Air Act · Case 3602999337 · Feb 4, 2022
Notice of Violation
Clean Air Act · Case 3602999338 · Feb 3, 2022
Notice of Violation
Clean Air Act · Case 3602362684 · Dec 23, 2020
Notice of Violation
Clean Air Act · Case 3602107327 · Feb 4, 2020
Administrative - Formal
· Case 05-2019-7537 · Dec 20, 2019
$2,500
Notice of Violation
Clean Air Act · Case 3601752042 · Feb 15, 2019
Notice of Violation
Clean Air Act · Case 3601637525 · Nov 9, 2018

Other facilities in ALLEN County, OH

ULTIMATE RB
DELPHOS, OH · Manufacturing
NELSON PACKAGING
LIMA, OH · Administrative and Support and Waste Management
PEPSI-COLA GENERAL BOTTLERS OF LIMA INC
LIMA, OH · Manufacturing
All facilities in OH →