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

PHILLIPS 66 CO - SWEENY REFINERY

Quick Summary

  • •Released 992,522 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 $554,804 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
8189 OLD FM 524
OLD OCEAN, TX 77463
View on map ↗
County
BRAZORIA County
Industry
Manufacturing
NAICS (North American Industry Classification)
324110
Inspections
11 · last Jul 8, 2025
Total Penalties
$554,804 · last Sep 30, 2025
Registry ID
110007182360

How This Compares

#41 of 1,879 TRI reporters in TX
#211 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.

2
Air (CAA)
Qtrs Non-Compliant
10
Water (CWA)
Qtrs Non-Compliant
9
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 1,213,496 —
2016 914,863 -25%
2017 992,522 +8%
2018 980,852 -1%
2019 675,699 -31%
2020 979,333 +45%
2021 544,778 -44%
2022 1,684,023 +209%
2023 915,785 -46%
2024 908,330 -1%

2024

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 152 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 678,814 — 678,814 — —
n-Hexane 38,682 38,682 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 32,437 32,437 — — —
Benzene 22,923 22,923 — — 15 ♦ Carcinogen
Propylene 21,005 21,005 — — —
Diethanolamine 17,205 17,205 — — —
Hydrogen cyanide 14,328 14,318 10 — —
Toluene 13,093 13,093 — — 97
Ammonia 12,937 3,763 9,174 — —
Cyclohexane 11,905 11,905 — — —
Hydrogen sulfide 11,419 11,145 274 — —
Xylene (mixed isomers) 6,613 6,613 — — 232
1,3-Butadiene 6,219 6,219 — — — ♦ Carcinogen
Methanol 6,139 6,139 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,698 3,698 — — —
Ethylene 3,358 3,358 — — —
Carbonyl sulfide 2,560 2,560 — — —
Ethylbenzene 1,499 1,499 — — 49 ♦ Carcinogen
Nickel compounds 911 185 726 — 3,086 ♦ Carcinogen
Carbon disulfide 749 749 — — 3
Hydrogen fluoride 729 729 — — —
1,2,4-Trimethylbenzene 223 223 — — —
m-Xylene 211 211 — — —
Naphthalene 154 154 — — 23 ♦ Carcinogen
o-Xylene 114 114 — — 1
Chlorine 96 96 — — —
p-Xylene 92 92 — — —
Lead compounds 84 84 1 — 2
Styrene 72 72 — — — ♦ Carcinogen
Aluminum oxide (fibrous forms) 47 47 — — —
Polycyclic aromatic compounds 5 5 — — 48 ♦ Carcinogen
Mercury compounds 5 4 1 — 0
Benzo[g,h,i]perylene 2 2 — — —
Molybdenum trioxide 1 1 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2023

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide — — — — — ♦ Carcinogen
Aluminum oxide (fibrous forms) — — — — —
Tetrachloroethylene — — — — 72 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 670,528 — 670,528 — —
n-Hexane 37,677 37,677 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 35,221 35,221 — — —
Propylene 22,424 22,424 — — —
Benzene 20,788 20,788 — — 11 ♦ Carcinogen
Methanol 17,526 17,526 — — —
Diethanolamine 16,973 16,973 — — —
Hydrogen sulfide 12,286 11,781 505 — —
Ammonia 12,257 3,486 8,771 — —
Hydrogen cyanide 12,112 12,112 — — —
Cyclohexane 11,989 11,989 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 11,190 11,190 — — —
Toluene 11,036 11,036 — — 46
1,3-Butadiene 5,923 5,923 — — — ♦ Carcinogen
Xylene (mixed isomers) 4,730 4,730 — — 197
Ethylene 3,616 3,616 — — —
Carbonyl sulfide 3,509 3,509 — — —
Ethylbenzene 1,518 1,518 — — 22 ♦ Carcinogen
Hydrogen fluoride 1,327 1,327 — — —
Carbon disulfide 1,027 1,027 — — 1
Nickel compounds 1,017 324 693 — 12,082 ♦ Carcinogen
m-Xylene 248 248 — — —
Naphthalene 162 162 — — 4 ♦ Carcinogen
1,2,4-Trimethylbenzene 139 139 — — —
o-Xylene 134 134 — — 1
Lead compounds 134 134 0 — 1,367
Chlorine 111 111 — — —
p-Xylene 108 108 — — —
Styrene 57 57 — — — ♦ Carcinogen
Mercury compounds 8 7 2 — 29
Polycyclic aromatic compounds 7 7 — — 80 ♦ Carcinogen
Benzo[g,h,i]perylene 2 2 — — —
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2022

Chemical Total (lbs) Air Water Land Off-Site
Tetrachloroethylene — — — — 112 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 1,387,540 — 1,387,540 — —
n-Hexane 103,390 103,390 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 39,538 39,538 — — —
Benzene 22,458 22,458 — — 9 ♦ Carcinogen
Propylene 20,132 20,132 — — —
Diethanolamine 16,814 16,814 — — —
Hydrogen sulfide 14,726 14,177 549 — —
Hydrogen cyanide 13,273 13,226 47 — —
Cyclohexane 12,513 12,513 — — —
Toluene 11,462 11,462 — — 61
Xylene (mixed isomers) 7,823 7,823 — — 171
Methanol 7,131 7,131 — — —
1,3-Butadiene 6,306 6,306 — — — ♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 4,345 4,345 — — —
Ethylene 4,041 4,041 — — —
Carbonyl sulfide 3,697 3,697 — — —
Ammonia 3,306 1,510 1,796 — —
Ethylbenzene 1,791 1,791 — — 30 ♦ Carcinogen
Carbon disulfide 1,082 1,082 — — 1
Nickel compounds 900 171 729 — 3,600 ♦ Carcinogen
m-Xylene 340 340 — — —
1,2,4-Trimethylbenzene 316 316 — — —
Hydrogen fluoride 288 288 — — —
o-Xylene 182 182 — — 1
Naphthalene 158 158 — — 4 ♦ Carcinogen
p-Xylene 147 147 — — —
Styrene 118 118 — — — ♦ Carcinogen
Chlorine 105 105 — — —
Lead compounds 76 76 1 — 248
Aluminum oxide (fibrous forms) 9 9 — — —
Mercury compounds 6 4 2 — 0
Polycyclic aromatic compounds 5 5 — — 79 ♦ Carcinogen
Molybdenum trioxide 3 3 — — — ♦ Carcinogen
Benzo[g,h,i]perylene 2 2 — — —
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2021

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 305,552 — 305,552 — —
n-Hexane 115,642 115,642 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 29,000 29,000 — — —
Hydrogen cyanide 11,227 10,970 257 — —
Hydrogen sulfide 11,190 10,956 234 — —
Propylene 10,500 10,500 — — —
Toluene 8,529 8,529 — — 4,224
Ethylene 7,800 7,800 — — —
Ammonia 7,605 2,592 5,013 — —
Benzene 7,253 7,253 — — 759 ♦ Carcinogen
Methanol 5,522 5,522 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 4,534 4,534 — — —
1,3-Butadiene 3,984 3,984 — — — ♦ Carcinogen
Xylene (mixed isomers) 3,948 3,948 — — 264
Carbonyl sulfide 3,608 3,608 — — —
Cyclohexane 2,963 2,963 — — —
Ethylbenzene 2,065 2,065 — — 53 ♦ Carcinogen
Carbon disulfide 1,056 1,056 — — —
Nickel compounds 748 26 722 — — ♦ Carcinogen
Diethanolamine 450 450 — — —
1,2,4-Trimethylbenzene 363 363 — — —
Hydrogen fluoride 275 275 — — —
m-Xylene 193 193 — — —
p-Xylene 184 184 — — —
Naphthalene 166 166 — — — ♦ Carcinogen
o-Xylene 106 106 — — —
Chlorine 95 95 — — —
Lead compounds 87 86 0 — —
Polycyclic aromatic compounds 81 81 — — — ♦ Carcinogen
Styrene 37 37 — — — ♦ Carcinogen
Mercury compounds 8 6 2 — —
Benzo[g,h,i]perylene 4 4 — — —
Aluminum oxide (fibrous forms) 2 2 — — —
Molybdenum trioxide 1 1 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen
Tetrachloroethylene 0 0 — — — ♦ Carcinogen

2020

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 702,751 — 702,751 — —
n-Hexane 86,020 86,020 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 67,000 67,000 — — —
Benzene 20,142 20,142 — — 421 ♦ Carcinogen
Ammonia 17,394 15,060 2,334 — —
Cyclohexane 12,773 12,773 — — —
Propylene 12,100 12,100 — — —
Hydrogen sulfide 11,545 11,438 107 — —
Toluene 10,464 10,464 — — 11,441
Hydrogen cyanide 7,950 7,710 240 — —
Methanol 5,281 5,281 — — —
Xylene (mixed isomers) 5,274 5,274 — — 742
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 4,703 4,703 — — —
1,3-Butadiene 4,028 4,028 — — — ♦ Carcinogen
Ethylene 3,300 3,300 — — —
Carbonyl sulfide 2,961 2,961 — — —
Ethylbenzene 1,332 1,332 — — 144 ♦ Carcinogen
Nickel compounds 812 40 772 — — ♦ Carcinogen
Tetrachloroethylene 803 803 — — — ♦ Carcinogen
Carbon disulfide 626 626 — — —
Diethanolamine 604 604 — — —
1,2,4-Trimethylbenzene 290 290 — — —
Hydrogen fluoride 235 235 — — —
m-Xylene 209 209 — — —
Naphthalene 158 158 — — — ♦ Carcinogen
o-Xylene 112 112 — — —
Lead compounds 99 98 1 — 4,323
Chlorine 93 93 — — —
p-Xylene 90 90 — — 1
Polycyclic aromatic compounds 82 82 — — — ♦ Carcinogen
Styrene 77 77 — — 2 ♦ Carcinogen
Aluminum oxide (fibrous forms) 9 9 — — —
Mercury compounds 9 7 2 — 1
Benzo[g,h,i]perylene 4 4 — — —
Molybdenum trioxide 3 3 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2019

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 658,575 — 658,575 — —
Propylene 12,400 12,400 — — —
Carbonyl sulfide 3,156 3,156 — — —
Carbon disulfide 667 667 — — —
Diethanolamine 593 593 — — —
Hydrogen fluoride 230 230 — — —
Polycyclic aromatic compounds 78 78 — — — ♦ Carcinogen

2018

Chemical Total (lbs) Air Water Land Off-Site
Vanadium compounds — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 583,645 — 583,645 — —
n-Hexane 123,372 123,372 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 87,000 87,000 — — —
Ammonia 40,399 36,060 4,339 — —
Hydrogen sulfide 25,344 25,080 264 — —
Hydrogen cyanide 20,506 20,360 146 — —
Diethanolamine 16,500 16,500 — — —
Propylene 15,400 15,400 — — —
Cyclohexane 13,300 13,300 — — —
Benzene 12,400 12,400 — — 1,029 ♦ Carcinogen
Toluene 10,700 10,700 — — 9,605
Xylene (mixed isomers) 8,350 8,350 — — 606
Methanol 7,075 7,075 — — —
Ethylene 4,300 4,300 — — —
Carbonyl sulfide 3,071 3,071 — — —
1,3-Butadiene 3,060 3,060 — — — ♦ Carcinogen
Ethylbenzene 1,650 1,650 — — 121 ♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 1,106 1,106 — — —
Nickel compounds 770 38 732 — — ♦ Carcinogen
Tetrachloroethylene 704 704 — — — ♦ Carcinogen
Carbon disulfide 649 649 — — —
1,2,4-Trimethylbenzene 308 308 — — —
Naphthalene 210 210 — — — ♦ Carcinogen
m-Xylene 207 207 — — —
Hydrogen fluoride 195 195 — — —
Chlorine 168 168 — — —
o-Xylene 110 110 — — —
Lead compounds 104 103 1 — 325
p-Xylene 90 90 — — —
Polycyclic aromatic compounds 79 79 — — — ♦ Carcinogen
Styrene 65 65 — — — ♦ Carcinogen
Mercury compounds 9 7 2 — 2
Benzo[g,h,i]perylene 6 6 — — —
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen
Molybdenum trioxide 0 0 — — — ♦ Carcinogen

2017

Chemical Total (lbs) Air Water Land Off-Site
Vanadium compounds — — — — —
Molybdenum trioxide — — — — — ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 600,996 — 600,996 — —
n-Hexane 105,420 105,420 — — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 80,000 80,000 — — —
Ammonia 55,313 52,050 3,263 — —
Hydrogen cyanide 28,510 28,350 160 — —
Hydrogen sulfide 24,533 24,298 235 — 24
Diethanolamine 16,300 16,300 — — —
Propylene 13,609 13,609 — — —
Benzene 11,500 11,500 — — 7,679 ♦ Carcinogen
Cyclohexane 11,100 11,100 — — —
Toluene 10,800 10,800 — — 7,693
Methanol 7,534 7,534 — — —
Xylene (mixed isomers) 5,240 5,240 — — —
Ethylene 5,171 5,171 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 4,686 4,686 — — —
1,3-Butadiene 3,060 3,060 — — — ♦ Carcinogen
Carbonyl sulfide 3,057 3,057 — — —
Ethylbenzene 1,240 1,240 — — 99 ♦ Carcinogen
Tetrachloroethylene 1,000 1,000 — — — ♦ Carcinogen
Nickel compounds 827 17 810 — — ♦ Carcinogen
Carbon disulfide 646 646 — — —
1,2,4-Trimethylbenzene 386 386 — — —
Naphthalene 293 293 — — 21 ♦ Carcinogen
Lead compounds 252 251 1 — 1,192
o-Xylene 240 240 — — —
m-Xylene 200 200 — — —
Hydrogen fluoride 158 158 — — —
Chlorine 150 150 — — —
Styrene 115 115 — — — ♦ Carcinogen
p-Xylene 100 100 — — —
Polycyclic aromatic compounds 71 71 — — — ♦ Carcinogen
Mercury compounds 11 9 2 — 0
Benzo[g,h,i]perylene 5 5 — — —
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2016

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 583,117 — 583,117 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 83,000 83,000 — — —
Ammonia 54,791 49,090 5,701 — —
Hydrogen cyanide 31,682 31,600 82 — —
n-Hexane 29,000 29,000 — — —
Hydrogen sulfide 24,975 24,784 191 — 10
Diethanolamine 17,800 17,800 — — —
Toluene 16,100 16,100 — — 8,972
Propylene 15,100 15,100 — — —
Benzene 12,100 12,100 — — 1,153 ♦ Carcinogen
Cyclohexane 11,200 11,200 — — —
Methanol 7,534 7,534 — — 10
Ethylene 5,600 5,600 — — —
Xylene (mixed isomers) 4,820 4,820 — — 584
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 4,491 4,491 — — —
Carbonyl sulfide 3,166 3,166 — — —
1,3-Butadiene 2,860 2,860 — — — ♦ Carcinogen
Ethylbenzene 1,400 1,400 — — 114 ♦ Carcinogen
Tetrachloroethylene 1,000 1,000 — — — ♦ Carcinogen
m-Xylene 900 900 — — —
Carbon disulfide 669 669 — — —
Vanadium compounds 572 572 — — —
o-Xylene 560 560 — — —
Naphthalene 555 555 — — 9 ♦ Carcinogen
Nickel compounds 554 46 508 — — ♦ Carcinogen
p-Xylene 310 310 — — —
1,2,4-Trimethylbenzene 286 286 — — —
Hydrogen fluoride 230 230 — — —
Lead compounds 177 176 1 — 6
Chlorine 150 150 — — —
Styrene 74 74 — — — ♦ Carcinogen
Polycyclic aromatic compounds 71 71 — — — ♦ Carcinogen
Mercury compounds 11 9 2 — 0
Benzo[g,h,i]perylene 7 7 — — —
Molybdenum trioxide 2 2 — — 1,459 ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2015

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 881,141 — 881,141 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 82,000 82,000 — — —
Ammonia 50,554 46,180 4,374 — —
Hydrogen cyanide 33,562 33,000 562 — —
n-Hexane 29,000 29,000 — — 1
Hydrogen sulfide 24,171 23,981 190 — 3
Propylene 17,900 17,900 — — —
Diethanolamine 17,000 17,000 — — —
Toluene 17,000 17,000 — — 4,072
Benzene 13,200 13,200 — — 851 ♦ Carcinogen
Cyclohexane 11,400 11,400 — — —
Methanol 6,776 6,776 — — 5
Ethylene 5,300 5,300 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 5,274 5,274 — — —
Xylene (mixed isomers) 4,990 4,990 — — 294
1,3-Butadiene 3,660 3,660 — — — ♦ Carcinogen
Carbonyl sulfide 3,157 3,157 — — —
Ethylbenzene 1,620 1,620 — — 56 ♦ Carcinogen
Tetrachloroethylene 976 976 — — — ♦ Carcinogen
1,2,4-Trimethylbenzene 820 820 — — —
Carbon disulfide 667 667 — — —
Naphthalene 569 569 — — 2 ♦ Carcinogen
Nickel compounds 549 43 506 — — ♦ Carcinogen
Vanadium compounds 485 485 — — —
m-Xylene 400 400 — — —
Chlorine 372 372 — — —
o-Xylene 266 266 — — —
Hydrogen fluoride 208 208 — — —
p-Xylene 197 197 — — —
Lead compounds 104 104 1 — 1,441
Styrene 88 88 — — — ♦ Carcinogen
Polycyclic aromatic compounds 71 71 — — — ♦ Carcinogen
Mercury compounds 11 9 2 — 0
Benzo[g,h,i]perylene 7 7 — — —
Dioxin and dioxin-like compounds 1 1 — — — ♦ 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
Propylene — — — 14,786
Tetrachloroethylene — — 152 —
Benzene — — — 519,475
Toluene — — 32 7,476
Ethylbenzene — — 40 —
1,3-Butadiene — — — 9,879
Xylene (mixed isomers) — — 221 —
Nickel compounds — 224 — —
n-Hexane — — — 256
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) — — — 14,850
Chlorine — — — 3,036
Ammonia — — — 44,787
Hydrogen sulfide — — — 337,223
Ethylene — — — 8,318

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
US ECOLOGY TEXAS
ROBSTOWN, TX
Lead compounds — — — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Mercury compounds — — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Mercury compounds — — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Mercury compounds 0 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
o-Xylene — — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
o-Xylene 1 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Polycyclic aromatic compounds 2 — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Polycyclic aromatic compounds 5 — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Polycyclic aromatic compounds 41 — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Benzene 7 — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Benzene 4 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Benzene 2 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Benzene — — — —
FORT BEND REGIONAL LANDFILL
NEEDVILLE, TX
Benzene 2 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
m-Xylene — — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
m-Xylene — — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Mercury compounds — — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Lead compounds 2 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Lead compounds — — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Naphthalene 5 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Naphthalene 13 — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Naphthalene 5 — — —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Nickel compounds 2,843 — — —
SABIN METAL WEST CORPORATION
WILLISTON, ND
Nickel compounds — 224 — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Nickel compounds 19 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Tetrachloroethylene — — 152 —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Carbon disulfide 2 — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Carbon disulfide 1 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Carbon disulfide — — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Ethylbenzene — — 40 —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Ethylbenzene 3 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylbenzene 6 — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Toluene 5 — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Toluene — — 32 —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Toluene 8 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Toluene 52 — — —
US ECOLOGY TEXAS
ROBSTOWN, TX
Xylene (mixed isomers) — — — —
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Xylene (mixed isomers) — — 221 —
COASTAL PLAINS RENEWABLE ENERGY PLANT
ALVIN, TX
Xylene (mixed isomers) 3 — — —
BLUE RIDGE LANDFILL
FRESNO, TX
Xylene (mixed isomers) 8 — — —

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 Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa — — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — Open
caa Linked to Viol. Below — — 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
pH range excursions, > 60 minutes DMR, Limited - Numeric Violation 0.03 occur/d 0.00 +2,147,483,650% Jan 2025 Open
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 145.00 mg/L 75.00 +93% Jan 2025 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 256.74 kg/d 251.97 +2% Sep 2024 Open
Oil & Grease DMR, Limited - Numeric Violation 18.20 mg/L 10.00 +82% Sep 2024 Open
Oil & Grease DMR, Limited - Numeric Violation 36.40 mg/L 15.00 +143% Sep 2024 Open
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 76.40 mg/L 75.00 +2% Jun 2024 Open
Enterococci DMR, Limited - Numeric Violation 89.40 MPN/100mL 35.00 +155% May 2024 Open
Enterococci DMR, Limited - Numeric Violation 800.00 MPN/100mL 104.00 +669% May 2024 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 365.56 kg/d 251.97 +45% Dec 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 1,131.78 kg/d 1,049.15 +8% Dec 2023 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 264.32 kg/d 251.97 +5% Jun 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 2,515.43 kg/d 2,485.20 +1% Mar 2023 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +18% Mar 2022 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.02 +94% Feb 2022 Open
Solids, total suspended DMR, Limited - Numeric Violation 2,963.71 kg/d 2,485.20 +19% Feb 2022 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +64% Feb 2022 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 1,324.32 kg/d 1,228.98 +8% Feb 2022 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +82% Dec 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.02 +94% Dec 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +121% Nov 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.02 +99% Nov 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.02 +8% Oct 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +32% Oct 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.03 mg/L 0.02 +41% Aug 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.01 +345% Jul 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.07 mg/L 0.02 +302% Jul 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.09 mg/L 0.02 +373% Jun 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.01 +310% Jun 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.09 mg/L 0.02 +396% May 2021 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +180% May 2021 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.03 mg/L 0.02 +57% Oct 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +29% Oct 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +18% Sep 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.03 mg/L 0.02 +54% Sep 2020 Resolved
pH range excursions, > 60 minutes DMR, Limited - Numeric Violation 0.03 occur/d 0.00 +2,147,483,650% Aug 2020 Open
Flow, in conduit or thru treatment plant DMR, Limited - Numeric Violation 1.40 MGD 0.64 +119% Aug 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +170% Jul 2020 Resolved
Flow, in conduit or thru treatment plant DMR, Limited - Numeric Violation 1.43 MGD 0.64 +123% Jul 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.06 mg/L 0.02 +215% Jul 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.08 mg/L 0.02 +335% Jun 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.01 +333% Jun 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +11% Apr 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.07 mg/L 0.02 +270% Mar 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +139% Mar 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +73% Jan 2020 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.03 mg/L 0.02 +61% Jan 2020 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.06 mg/L 0.02 +201% Dec 2019 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +99% Dec 2019 Resolved
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.07 mg/L 0.02 +280% Nov 2019 Open
Cyanide, free [amenable to chlorination] DMR, Limited - Numeric Violation 0.04 mg/L 0.01 +335% Nov 2019 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.

Date Out of Range
Clean Air Act · Case 3604288047
Date Out of Range
Clean Air Act · Case 3601761144
Date Out of Range
Clean Air Act · Case 3604052347
Date Out of Range
Clean Air Act · Case 3604641811
Administrative - Formal
Clean Air Act · Case 3603543546 · Sep 30, 2025
$13,125
Administrative - Formal
Clean Air Act · Case 3602914097 · Oct 1, 2024
$93,729
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD048210645-11 · Aug 28, 2024
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD048210645-12 · Aug 28, 2024
Administrative - Formal
Clean Air Act · Case 3602860443 · Aug 22, 2023
$45,850
Administrative - Formal
Clean Air Act · Case 3602860446 · Jul 27, 2023
$54,000
Administrative - Formal
Clean Air Act · Case 3602860393 · Jul 27, 2023
$63,451
Administrative - Formal
Clean Air Act · Case 3602718026 · Jul 27, 2023
$44,450
Administrative - Formal
Clean Air Act · Case 3602860388 · Jul 27, 2023
$41,703
Administrative - Formal
Clean Air Act · Case 3602480440 · Dec 20, 2022
$100,403
Administrative - Formal
Clean Air Act · Case 3602422258 · Jul 7, 2022
$49,862
Administrative - Formal
Clean Air Act · Case 3602375101 · Jan 27, 2022
$12,308
Administrative - Formal
Clean Air Act · Case 3602092284 · Apr 6, 2021
$35,923
Administrative - Formal
Clean Air Act · Case 3601760827 · Jan 28, 2020
$6,300
State CWA Penalty AO
Clean Water Act · Case TX-2018-0923-IWD-E · Sep 16, 2019
$30,000
Administrative - Formal
· Case 06-2019-1734 · Dec 7, 2018

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