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

VALERO ARDMORE REFINERY

Quick Summary

  • •Released 106,416 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 $35,831 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
ONE VALERO WAY
ARDMORE, OK 73401
View on map ↗
County
CARTER County
Industry
Manufacturing
NAICS (North American Industry Classification)
324110
Inspections
15 · last Oct 31, 2025
Total Penalties
$35,831 · last Aug 15, 2024
Registry ID
110000606746

How This Compares

#27 of 314 TRI reporters in OK
#1,053 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.

7
Air (CAA)
Qtrs Non-Compliant
3
Water (CWA)
Qtrs Non-Compliant
0
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) -25% overall
Year Total Releases (lbs) vs Prior Year
2015 153,682 —
2016 88,394 -42%
2017 106,416 +20%
2018 145,902 +37%
2019 5,510 -96%
2020 119,924 +2076%
2021 179,435 +50%
2022 186,837 +4%
2023 114,133 -39%
2024 115,534 +1%

2024

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 31,781 31,781 — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 21,840 — 21,840 — —
n-Hexane 13,601 13,596 5 — —
Xylene (mixed isomers) 9,372 9,367 5 — 818
Toluene 9,223 9,218 5 — 448
Ammonia 8,994 8,294 700 — —
Benzene 4,372 4,367 5 — 180 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,742 2,737 5 — —
Propylene 2,388 2,383 5 — —
Cyclohexane 2,347 2,342 5 — —
Carbonyl sulfide 1,726 1,721 5 — —
Ethylbenzene 1,651 1,646 5 — 295 ♦ Carcinogen
Hydrogen sulfide 1,498 1,443 55 — 683
Ethylene 1,115 1,110 5 — —
Carbon disulfide 1,046 1,041 5 — —
Methanol 696 691 5 — —
Naphthalene 479 474 5 — — ♦ Carcinogen
Cumene 207 202 5 — — ♦ Carcinogen
Polycyclic aromatic compounds 87 87 — — — ♦ Carcinogen
Styrene 78 73 5 — — ♦ Carcinogen
Phenanthrene 74 69 5 — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 69 69 — — —
Phenol 51 26 25 — —
Lead compounds 41 33 8 — 1,362
Tetrachloroethylene 15 10 5 — 3,993 ♦ Carcinogen
Anthracene 14 9 5 — —
Hydrogen fluoride 10 5 5 — —
Cresol (mixed isomers) 8 3 5 — —
Ethylene glycol 5 — 5 — —
Benzo[g,h,i]perylene 3 3 — — —
Mercury compounds 2 2 — — 6
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2023

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 28,528 28,528 — — 173
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 23,117 — 23,117 — —
n-Hexane 17,675 17,670 5 — 0
Toluene 9,673 9,668 5 — 399
Xylene (mixed isomers) 8,387 8,382 5 — 954
Ammonia 8,078 7,530 548 — —
Benzene 3,873 3,868 5 — 71 ♦ Carcinogen
Propylene 3,470 3,465 5 — —
1,2,4-Trimethylbenzene 3,446 3,441 5 — —
Cyclohexane 1,610 1,605 5 — —
Ethylbenzene 1,415 1,410 5 — 286 ♦ Carcinogen
Hydrogen sulfide 1,133 1,070 63 — —
Ethylene 1,068 1,063 5 — —
Methanol 991 986 5 — —
Carbon disulfide 445 440 5 — —
Naphthalene 385 380 5 — 0 ♦ Carcinogen
Cumene 167 162 5 — 55 ♦ Carcinogen
Carbonyl sulfide 165 160 5 — —
Nickel compounds 110 67 43 — 2,043 ♦ Carcinogen
Phenanthrene 87 82 5 — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 65 65 — — —
Polycyclic aromatic compounds 56 56 — — — ♦ Carcinogen
Phenol 36 10 26 — 2,761
Molybdenum trioxide 31 5 26 — 4,767 ♦ Carcinogen
Lead compounds 29 20 9 — 333
Styrene 23 18 5 — — ♦ Carcinogen
Cobalt compounds 18 13 5 — — ♦ Carcinogen
Tetrachloroethylene 15 10 5 — — ♦ Carcinogen
Anthracene 12 7 5 — —
Cresol (mixed isomers) 10 5 5 — 118
Hydrogen fluoride 10 5 5 — —
Benzo[g,h,i]perylene 2 2 — — —
Mercury compounds 2 2 — — 1
Dioxin and dioxin-like compounds 0 0 — — — ♦ Carcinogen

2022

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 99,823 — 99,823 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 30,775 30,775 — — 348
n-Hexane 12,677 12,672 5 — 17
Toluene 9,633 9,628 5 — 364
Xylene (mixed isomers) 8,289 8,284 5 — 476
Ammonia 5,763 5,046 717 — —
Propylene 3,938 3,933 5 — —
Benzene 3,789 3,784 5 — 99 ♦ Carcinogen
1,2,4-Trimethylbenzene 3,452 3,447 5 — 6,418
Ethylbenzene 1,881 1,876 5 — 228 ♦ Carcinogen
Cyclohexane 1,596 1,591 5 — —
Ethylene 1,313 1,308 5 — —
Methanol 1,109 1,104 5 — —
Naphthalene 565 560 5 — 6,402 ♦ Carcinogen
Hydrogen sulfide 440 376 64 — —
Cumene 427 422 5 — 716 ♦ Carcinogen
Carbon disulfide 413 408 5 — —
Styrene 327 322 5 — — ♦ Carcinogen
Nickel compounds 114 72 42 — 54,895 ♦ Carcinogen
Molybdenum trioxide 97 72 25 — 12,009 ♦ Carcinogen
Phenanthrene 95 90 5 — —
Carbonyl sulfide 71 66 5 — —
Polycyclic aromatic compounds 58 58 — — — ♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 57 57 — — —
Phenol 36 14 22 — 3,845
Lead compounds 26 18 8 — 414
Cobalt compounds 24 19 5 — — ♦ Carcinogen
Tetrachloroethylene 15 10 5 — — ♦ Carcinogen
Anthracene 12 7 5 — —
Hydrogen fluoride 10 5 5 — —
Cresol (mixed isomers) 5 — 5 — 163
Ethylene glycol 5 — 5 — —
Benzo[g,h,i]perylene 1 1 — — —
Dioxin and dioxin-like compounds 0 0 0 — — ♦ Carcinogen

2021

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 94,632 — 94,632 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 29,399 29,399 — — 300
n-Hexane 15,418 15,413 5 — —
Toluene 8,665 8,660 5 — 334
Xylene (mixed isomers) 8,065 8,060 5 — 536
Ammonia 5,488 5,082 406 — —
Benzene 3,517 3,512 5 — 105 ♦ Carcinogen
1,2,4-Trimethylbenzene 3,371 3,366 5 — 337
Propylene 3,138 3,133 5 — —
Ethylene 2,316 2,311 5 — —
Ethylbenzene 1,485 1,480 5 — 158 ♦ Carcinogen
Cyclohexane 1,252 1,247 5 — —
Methanol 993 988 5 — —
Hydrogen sulfide 480 413 67 — —
Carbon disulfide 396 391 5 — —
Naphthalene 327 322 5 — 337 ♦ Carcinogen
Cumene 165 160 5 — 87 ♦ Carcinogen
Phenanthrene 81 76 5 — —
Polycyclic aromatic compounds 62 62 — — — ♦ Carcinogen
Phenol 44 39 5 — 2,669
Carbonyl sulfide 41 36 5 — —
Lead compounds 26 18 8 — 333
Cresol (mixed isomers) 21 16 5 — 114
Styrene 15 10 5 — — ♦ Carcinogen
Tetrachloroethylene 15 10 5 — 0 ♦ Carcinogen
Anthracene 11 6 5 — —
Hydrogen fluoride 10 5 5 — —
Benzo[g,h,i]perylene 1 1 — — —
Dioxin and dioxin-like compounds 0 0 0 — — ♦ Carcinogen

2020

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 29,708 29,708 — — 1,560
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 25,824 — 25,824 — —
Xylene (mixed isomers) 15,879 15,874 5 — 930
Toluene 13,601 13,596 5 — 1,047
n-Hexane 7,074 7,069 5 — 1,342
1,2,4-Trimethylbenzene 5,922 5,917 5 — 2,219
Benzene 5,608 5,603 5 — 242 ♦ Carcinogen
Ammonia 4,297 4,047 250 — —
Propylene 3,418 3,413 5 — —
Ethylbenzene 2,051 2,046 5 — 382 ♦ Carcinogen
Cyclohexane 1,813 1,808 5 — —
Ethylene 1,611 1,606 5 — —
Hydrogen sulfide 708 647 61 — —
Methanol 588 583 5 — —
Naphthalene 573 568 5 — 911 ♦ Carcinogen
Carbon disulfide 417 412 5 — —
Cumene 198 193 5 — 280 ♦ Carcinogen
Nickel compounds 133 93 40 — 4,572 ♦ Carcinogen
Molybdenum trioxide 86 81 5 — 8,563 ♦ Carcinogen
1,3-Butadiene 76 71 5 — — ♦ Carcinogen
Polycyclic aromatic compounds 65 65 — — — ♦ Carcinogen
Phenol 56 35 21 — 5,361
Phenanthrene 50 45 5 — —
Carbonyl sulfide 49 44 5 — —
Lead compounds 26 18 8 — 373
Anthracene 21 16 5 — —
Cresol (mixed isomers) 21 16 5 — 228
Styrene 18 13 5 — — ♦ Carcinogen
Hydrogen fluoride 15 10 5 — —
Tetrachloroethylene 15 10 5 — — ♦ Carcinogen
Benzo[g,h,i]perylene 3 3 — — —
Mercury compounds 2 2 — — 9

2019

Chemical Total (lbs) Air Water Land Off-Site
Propylene 2,612 2,607 5 — —
Ethylbenzene 1,920 1,915 5 — 420 ♦ Carcinogen
Carbon disulfide 464 459 5 — —
Cumene 221 216 5 — 343 ♦ Carcinogen
1,3-Butadiene 122 117 5 — — ♦ Carcinogen
Molybdenum trioxide 86 81 5 — 1,816 ♦ Carcinogen
Carbonyl sulfide 68 63 5 — —
Hydrogen fluoride 15 10 5 — —
Mercury compounds 2 2 — — 4

2018

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 29,371 29,371 — — 1,561
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 26,443 — 26,443 — —
Toluene 22,729 22,724 5 — 1,192
Xylene (mixed isomers) 20,713 20,708 5 — 1,089
n-Hexane 11,261 11,256 5 — 1,353
Benzene 8,839 8,834 5 — 261 ♦ Carcinogen
Ethylbenzene 4,695 4,690 5 — 479 ♦ Carcinogen
Propylene 3,820 3,815 5 — —
Ethylene 3,558 3,553 5 — —
Cyclohexane 3,111 3,106 5 — —
1,2,4-Trimethylbenzene 2,319 2,319 — — 2,230
Ammonia 2,105 1,855 250 — —
Hydrogen sulfide 1,250 1,000 250 — —
Naphthalene 1,235 1,230 5 — 911 ♦ Carcinogen
Nickel compounds 750 500 250 — 4,572 ♦ Carcinogen
Phenol 505 255 250 — 1,276
Cumene 505 500 5 — 280 ♦ Carcinogen
Styrene 260 255 5 — — ♦ Carcinogen
Methanol 260 255 5 — —
Carbonyl sulfide 260 255 5 — —
Anthracene 260 255 5 — —
Carbon disulfide 260 255 5 — —
Molybdenum trioxide 260 255 5 — 8,564 ♦ Carcinogen
Phenanthrene 260 255 5 — —
1,3-Butadiene 260 255 5 — — ♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 255 255 — — —
Polycyclic aromatic compounds 226 226 — — — ♦ Carcinogen
Lead compounds 38 30 8 — 377
Benzo[g,h,i]perylene 32 32 — — —
Tetrachloroethylene 15 10 5 — 1 ♦ Carcinogen
Cobalt compounds 15 10 5 — 4,692 ♦ Carcinogen
Hydrogen fluoride 15 10 5 — —
Cresol (mixed isomers) 15 10 5 — 54
Mercury compounds 2 2 — — 10
Dioxin and dioxin-like compounds 0 0 0 — — ♦ Carcinogen

2017

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 30,559 30,559 — — 412
Toluene 16,837 16,832 5 — 153
Xylene (mixed isomers) 13,825 13,820 5 — 260
n-Hexane 9,501 9,496 5 — 228
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 8,116 — 8,116 — —
Benzene 6,203 6,198 5 — 369 ♦ Carcinogen
Ethylene 3,175 3,170 5 — —
Cyclohexane 3,153 3,148 5 — —
Ethylbenzene 3,025 3,020 5 — 92 ♦ Carcinogen
Ammonia 2,705 1,955 750 — —
1,2,4-Trimethylbenzene 1,579 1,574 5 — 36
Propylene 1,390 1,385 5 — —
Hydrogen sulfide 1,250 1,000 250 — —
Naphthalene 1,005 1,000 5 — 300 ♦ Carcinogen
Carbon disulfide 760 755 5 — —
Phenol 505 255 250 — 2,622
Nickel compounds 505 255 250 — 14,621 ♦ Carcinogen
Cumene 505 500 5 — 52 ♦ Carcinogen
Phenanthrene 260 255 5 — —
Carbonyl sulfide 260 255 5 — —
Anthracene 260 255 5 — —
1,3-Butadiene 260 255 5 — — ♦ Carcinogen
Methanol 260 255 5 — —
Styrene 260 255 5 — — ♦ Carcinogen
Polycyclic aromatic compounds 138 138 — — — ♦ Carcinogen
Lead compounds 31 24 7 — 511
Benzo[g,h,i]perylene 27 27 — — —
Hydrogen fluoride 15 10 5 — —
Tetrachloroethylene 15 10 5 — — ♦ Carcinogen
Cresol (mixed isomers) 15 10 5 — 112
Cobalt compounds 15 10 5 — 4,094 ♦ Carcinogen
Mercury compounds 2 2 — — 21
Dioxin and dioxin-like compounds 0 0 0 — — ♦ Carcinogen

2016

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 27,267 27,267 — — 378
n-Hexane 9,201 9,196 5 — 196
Toluene 9,139 9,134 5 — 123
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 8,239 — 8,239 — —
Xylene (mixed isomers) 8,183 8,178 5 — 213
Benzene 6,205 6,200 5 — 296 ♦ Carcinogen
Ethylbenzene 3,021 3,016 5 — 75 ♦ Carcinogen
Cyclohexane 2,946 2,941 5 — —
Ammonia 2,872 2,545 327 — —
Propylene 2,142 2,137 5 — —
Ethylene 1,505 1,500 5 — —
Cumene 1,005 1,000 5 — 36 ♦ Carcinogen
Naphthalene 1,005 1,000 5 — 282 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,005 1,000 5 — 32
Hydrogen sulfide 750 500 250 — —
Nickel compounds 750 500 250 — 150,227 ♦ Carcinogen
Phenol 505 255 250 — 1,817
Methanol 260 255 5 — —
Phenanthrene 260 255 5 — —
Hydrogen fluoride 260 255 5 — —
Carbonyl sulfide 260 255 5 — —
1,3-Butadiene 260 255 5 — — ♦ Carcinogen
Carbon disulfide 260 255 5 — —
Styrene 260 255 5 — — ♦ Carcinogen
Vanadium compounds 255 250 5 — 19,684
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 255 255 — — —
Polycyclic aromatic compounds 130 130 — — — ♦ Carcinogen
Molybdenum trioxide 94 89 5 — 14,012 ♦ Carcinogen
Lead compounds 37 30 7 — 215
Anthracene 15 10 5 — —
Tetrachloroethylene 15 10 5 — — ♦ Carcinogen
Cobalt compounds 15 10 5 — 8,061 ♦ Carcinogen
Cresol (mixed isomers) 15 10 5 — 77
Mercury compounds 2 2 — — 6
Benzo[g,h,i]perylene 1 1 — — —
Dioxin and dioxin-like compounds 0 0 0 — — ♦ Carcinogen

2015

Chemical Total (lbs) Air Water Land Off-Site
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 76,231 76,231 — — 244
Xylene (mixed isomers) 10,331 10,326 5 — 1,712
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 9,355 — 9,355 — —
n-Hexane 9,315 9,310 5 — 286
Toluene 8,701 8,696 5 — 1,130
Ammonia 7,383 3,396 3,987 — —
Benzene 7,033 7,028 5 — 337 ♦ Carcinogen
Cyclohexane 4,193 4,188 5 — —
Naphthalene 4,097 4,092 5 — 22 ♦ Carcinogen
Propylene 2,931 2,926 5 — —
Ethylbenzene 2,903 2,898 5 — 721 ♦ Carcinogen
Hydrogen sulfide 2,804 2,554 250 — —
Ethylene 1,800 1,795 5 — —
Cumene 1,005 1,000 5 — 74 ♦ Carcinogen
Carbon disulfide 760 755 5 — —
1,2,4-Trimethylbenzene 760 755 5 — 61
Nickel compounds 505 255 250 — 157,029 ♦ Carcinogen
Phenol 505 255 250 — 3,722
1,3-Butadiene 505 500 5 — — ♦ Carcinogen
Cobalt compounds 260 255 5 — 7,604 ♦ Carcinogen
Methanol 260 255 5 — —
Styrene 260 255 5 — — ♦ Carcinogen
Phenanthrene 260 255 5 — —
Hydrogen fluoride 260 255 5 — —
Anthracene 260 255 5 — —
Carbonyl sulfide 260 255 5 — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 255 255 — — —
Vanadium compounds 255 250 5 — 19,146
Polycyclic aromatic compounds 136 136 — — — ♦ Carcinogen
Lead compounds 45 36 9 — 165
Molybdenum trioxide 15 10 5 — 13,315 ♦ Carcinogen
Tetrachloroethylene 15 10 5 — 1 ♦ Carcinogen
Benzo[g,h,i]perylene 12 12 — — —
Cresol (mixed isomers) 10 5 5 — 179
Mercury compounds 2 2 — — 10
Dioxin and dioxin-like compounds 0 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
Benzene — 53 11,653 18,546
1,2,4-Trimethylbenzene — — 12,408 —
n-Hexane — — 2,898 459,029
Hydrogen sulfide — 683 — 10,688
Cyclohexane — — 1,040 1,725
Xylene (mixed isomers) — 482 1,811 9,523
Methanol — — 733,961 —
Tetrachloroethylene — — 3,993 —
Toluene — 183 5,118 19,362
Cresol (mixed isomers) — — 580,940 —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) — — — 67,738
Ethylbenzene — 68 947 1,560
Naphthalene — — 97 524
Propylene — — — 170,970
Phenol — — 1,590 118,541
Ammonia — — 4,891,917 2,484
Cumene — — 1,246 234
Mercury compounds — 0 — —
Ethylene — — — 84,627
Carbon disulfide — — — 70,028
Hydrogen fluoride — — — 472,007
Lead compounds — 65 — —
Carbonyl sulfide — — — 164,111
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) — — — 53,689
Ethylene glycol — — — 11,547

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 LONE MOUNTAIN LLC
WAYNOKA, OK
Ethylbenzene 0 — — —
DESOTEC
PARKER, AZ
Ethylbenzene — 4 — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Ethylbenzene — — — 0
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Ethylbenzene — — — 0
BASF CALDWELL
CALDWELL, TX
Ethylbenzene — 1 — —
HOLCIM ADA PLANT
ADA, OK
Ethylbenzene 0 — — —
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Ethylbenzene — 0 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Ethylbenzene — — 210 —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Ethylbenzene 4 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Ethylbenzene — — 11 —
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylbenzene — 63 — —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Ethylbenzene 2 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Tetrachloroethylene — — 3,993 —
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Toluene — — — 0
BASF CALDWELL
CALDWELL, TX
Toluene — 2 — —
CLEAN HARBORS LONE MOUNTAIN LLC
WAYNOKA, OK
Toluene 1 — — —
HOLCIM ADA PLANT
ADA, OK
Toluene 0 — — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Toluene — — — 0
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Toluene — 0 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Toluene — — 210 —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Toluene 4 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Toluene — — 21 —
US ECOLOGY TEXAS
ROBSTOWN, TX
Toluene — 117 — —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Toluene 29 — — —
DESOTEC
PARKER, AZ
Toluene — 65 — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Xylene (mixed isomers) 0 — — —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Xylene (mixed isomers) 12 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Xylene (mixed isomers) — — 82 —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Xylene (mixed isomers) 8 — — —
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Xylene (mixed isomers) — — — 0
BASF CALDWELL
CALDWELL, TX
Xylene (mixed isomers) — 2 — —
CLEAN HARBORS LONE MOUNTAIN LLC
WAYNOKA, OK
Xylene (mixed isomers) 23 — — —
DESOTEC
PARKER, AZ
Xylene (mixed isomers) — 26 — —
HOLCIM ADA PLANT
ADA, OK
Xylene (mixed isomers) 1 — — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Xylene (mixed isomers) — — — 0
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Xylene (mixed isomers) — 1 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Xylene (mixed isomers) — — 210 —
BASF CALDWELL
CALDWELL, TX
Lead compounds — 0 — —
CLEAN HARBORS LONE MOUNTAIN LLC
WAYNOKA, OK
Lead compounds 3 — — —
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Lead compounds — 0 — —
HOLCIM ADA PLANT
ADA, OK
Lead compounds 74 — — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Lead compounds — 0 — —
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Lead compounds — 65 — —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Lead compounds 1,174 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Lead compounds 1 — — —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Lead compounds 29 — — —
DESOTEC
PARKER, AZ
Lead compounds 1 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Lead compounds 7 — — —
GRAPHIC PACKAGING INTERNATIONAL TEXARKANA MILL
QUEEN CITY, TX
Hydrogen sulfide — 683 — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Mercury compounds 1 — — —
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Mercury compounds — 0 — —
BASF CALDWELL
CALDWELL, TX
Mercury compounds — 0 — —
CLEAN HARBORS LONE MOUNTAIN LLC
WAYNOKA, OK
Mercury compounds 0 — — —
DESOTEC
PARKER, AZ
Mercury compounds 0 — — —
HOLCIM ADA PLANT
ADA, OK
Mercury compounds 0 — — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Mercury compounds — 0 — —
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Mercury compounds — 0 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Mercury compounds 0 — — —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Mercury compounds 5 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Mercury compounds 0 — — —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Mercury compounds 0 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Benzene — 31 — —
WASTE MGMT OF OKLA E OAK SAN LANDFILL
OKLAHOMA CITY, OK
Benzene 2 — — —
MARTIN MARIETTA MIDLOTHIAN FACILITY
MIDLOTHIAN, TX
Benzene — 0 — —
DESOTEC
PARKER, AZ
Benzene — 21 — —
LEEDS SPECIALTY ALLOYS LLC (LSA)
PORTLAND, OR
Benzene — 0 — —
SOTHERN OKLAHOMA REGIONAL DISPOSAL, INC. (SORD)
ARDMORE, OK
Benzene 4 — — —
HOLCIM ADA PLANT
ADA, OK
Benzene 0 — — —
ALPHA OMEGA RECYCLING
LONGVIEW, TX
Benzene — — — 0
BASF CALDWELL
CALDWELL, TX
Benzene — 1 — —
CLEAN HARBORS LONE MOUNTAIN LLC
WAYNOKA, OK
Benzene 0 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Benzene — — 121 —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Benzene — — 0 —

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 FRV Jun 18, 2025 — Open
caa FRV May 23, 2025 — Open
caa FRV May 19, 2025 — Open
caa FRV May 8, 2025 — Open
caa FRV Jan 30, 2025 — Open
caa FRV Jan 30, 2025 — Open
caa FRV Jan 30, 2025 — Open
caa FRV Aug 5, 2024 — Open
caa FRV Jul 24, 2024 — Open
caa HPV Jul 20, 2023 Jun 24, 2024 Resolved
caa FRV Sep 7, 2022 — Open
caa FRV Sep 7, 2022 — Open
caa FRV Sep 7, 2022 — Open
caa FRV Aug 23, 2022 — Open
caa FRV Jul 13, 2022 — Open
caa FRV Jul 13, 2022 — Open
caa FRV Jan 19, 2022 — Open
caa FRV Dec 22, 2021 — Open
caa FRV Dec 22, 2021 — Open
caa FRV Dec 22, 2021 — Open
caa FRV Dec 21, 2021 — Open
caa FRV Oct 29, 2019 — Open
caa FRV Sep 26, 2019 — Open
caa FRV Sep 11, 2019 — Open
caa FRV Sep 5, 2019 — Open
cwa Schedule Event achieved late but reported May 1, 2019 — Open
cwa Permit Violations - Violation Specified in Comment Mar 27, 2019 — Open
caa FRV Sep 26, 2018 — Open
caa FRV Aug 7, 2018 — Open
caa FRV Aug 7, 2018 — Open
caa FRV Aug 16, 2016 — Open
caa FRV Aug 16, 2016 — Open
caa FRV Jul 19, 2016 — Open
caa FRV Jul 13, 2016 — Open
caa FRV Jul 13, 2016 — Open
cwa Permit Violations - Violation Specified in Comment Feb 10, 2016 — Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Surface Impoundments May 16, 2013 Jun 16, 2013 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jan 18, 2013 Jan 18, 2013 Resolved
cwa Permit Violations - Violation Specified in Comment Jan 18, 2013 — Open
cwa Schedule Event achieved late but reported Dec 31, 2011 — Open
cwa Schedule Event achieved late but reported Dec 31, 2011 — Open
cwa Permit Violations - Violation Specified in Comment Dec 21, 2011 — Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Mar 1, 2011 Mar 4, 2011 Resolved
cwa Permit Violations - Violation Specified in Comment Oct 7, 2010 — Open
cwa Permit Violations - Violation Specified in Comment Nov 24, 2009 — Open
cwa Schedule Event unachieved but reported Oct 31, 2009 Dec 30, 2009 Resolved
cwa Schedule Event achieved late but reported Oct 31, 2009 — Open
cwa Schedule Event reported late Oct 31, 2009 — Open
cwa Schedule Event unachieved and not reported Oct 31, 2009 Dec 30, 2009 Resolved
cwa Schedule Event achieved late but reported Dec 31, 2008 — Open

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
Solids, total suspended DMR, Limited - Numeric Violation 72.80 mg/L 46.00 +58% Feb 2025 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 85.90 mg/L 53.60 +60% Oct 2023 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 559.06 kg/d 218.83 +155% Oct 2023 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 171.75 kg/d 148.57 +16% Oct 2023 Open
Oxygen demand, chem. [high level] [COD] DMR, Limited - Numeric Violation 104.00 mg/L 95.00 +9% Apr 2023 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 437.43 kg/d 218.83 +100% Oct 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 65.00 mg/L 53.60 +21% Oct 2022 Open
Oil and grease, hexane extr method DMR, Limited - Numeric Violation 23.20 mg/L 15.00 +55% Jul 2022 Open
Oil and grease, hexane extr method DMR, Limited - Numeric Violation 124.58 kg/d 103.38 +21% Jul 2022 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 4.77 kg/d 2.48 +92% Oct 2021 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 1.44 mg/L 1.14 +26% Oct 2021 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 7.42 kg/d 5.54 +34% Oct 2021 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 0.93 mg/L 0.51 +82% Oct 2021 Open
Solids, total suspended DMR, Limited - Numeric Violation 48.00 mg/L 46.00 +4% Oct 2021 Open
Solids, total suspended DMR, Limited - Numeric Violation 55.00 mg/L 46.00 +20% Sep 2021 Open
Solids, total suspended DMR, Limited - Numeric Violation 91.30 mg/L 90.00 +1% Jul 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 554.92 kg/d 367.29 +51% Mar 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 126.00 mg/L 90.00 +40% Mar 2019 Open
Oxygen demand, chem. [high level] [COD] DMR, Limited - Numeric Violation 96.30 mg/L 95.00 +1% Oct 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 410.37 kg/d 367.35 +13% Jun 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 422.00 mg/L 53.60 +474% Oct 2016 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 223.32 kg/d 148.57 +51% Oct 2016 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 2,091.90 kg/d 218.78 +864% Oct 2016 Open
Solids, total suspended DMR, Limited - Numeric Violation 391.30 kg/d 367.35 +7% Aug 2016 Open
Chromium, total [as Cr] DMR, Limited - Numeric Violation 466.35 kg/d 3.02 +24,357% May 2015 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 57.52 kg/d 0.57 +15,738% May 2015 Open
Chromium, total [as Cr] DMR, Limited - Numeric Violation 603.59 kg/d 8.69 +10,979% May 2015 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 41.27 kg/d 0.25 +30,200% May 2015 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 11.00 mg/L 0.14 +9,067% May 2015 Open
Chromium, total [as Cr] DMR, Limited - Numeric Violation 115.40 mg/L 2.13 +6,172% May 2015 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 7.10 mg/L 0.06 +14,100% May 2015 Open
Chromium, total [as Cr] DMR, Limited - Numeric Violation 79.34 mg/L 0.74 +12,297% May 2015 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.

Administrative - Formal
Clean Air Act · Case 3603877256 · Feb 5, 2024
$1,181
VERBAL INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OKD057705972-001 · Mar 1, 2011
State CWA Penalty AO
Clean Water Act · Case OK-N00001522 · Mar 26, 2007
$20,000
State Administrative Order of Consent
Clean Water Act · Case OK-N00001524 · Mar 26, 2007
Judicial
· Case 06-2000-1220 · Nov 23, 2005
$3,592,308
State CWA Non Penalty AO
Clean Water Act · Case OK-N00001523 · Oct 25, 2005
State CWA Non Penalty AO
Clean Water Act · Case OK-N00000534 · Apr 11, 2002
Judicial
· Case 06-1995-0012 · May 29, 1998
$75,000
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OKD057705972-000 · Sep 18, 1992
CWA 309A AO For Compliance
Clean Water Act · Case 06-1991-N177 · Mar 15, 1991
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OKD057705972-004 · Jun 25, 1990
CWA 309A AO For Compliance
Clean Water Act · Case 06-1990-N099 · Feb 5, 1990
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-OKD057705972-002 · Dec 23, 1988
CWA 309A AO For Compliance
Clean Water Act · Case 06-1988-N122 · Jul 18, 1988
CWA 309A AO For Compliance
Clean Water Act · Case 06-1988-N128 · Oct 27, 1987
CWA 309A AO For Compliance
Clean Water Act · Case 06-1986-N092 · May 21, 1986
CWA 309A AO For Compliance
Clean Water Act · Case 06-1985-N050 · Aug 21, 1985

Other facilities in CARTER County, OK

XTO ENERGY INC / MOTE 1 7H12 AND ANTWINE 1 7H12 PRODUCT
ARDMORE, OK · Mining, Quarrying, and Oil and Gas Extraction
XTO ENERGY INC / D H CATTLE 3 1H PRODUCTION SITE
GENE AUTRY, OK · Mining, Quarrying, and Oil and Gas Extraction
XTO ENERGY INC / COOK 2 3 6H31 PRODUCTION SITE
GENE AUTRY, OK · Mining, Quarrying, and Oil and Gas Extraction
KOLIBRI ENERGY US INC / WIGGINS 11 2H WELL SITE
ARDMORE, OK · Mining, Quarrying, and Oil and Gas Extraction
All facilities in OK →