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

CORPUS CHRISTI EAST REFINERY

Quick Summary

  • Released 498,017 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 $110,668 in total penalties since records began.
  • Reports releases of chemicals classified as known or probable carcinogens.
Address
1300 CANTWELL LANE
CORPUS CHRISTI, TX 78403
View on map ↗
County
NUECES County
Industry
Manufacturing
NAICS (North American Industry Classification)
324110
Inspections
13 · last May 15, 2025
Total Penalties
$110,668 · last Jul 23, 2024
Registry ID
110000501993

How This Compares

#70 of 1,879 TRI reporters in TX
#377 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

12
Air (CAA)
Qtrs Non-Compliant
3
Water (CWA)
Qtrs Non-Compliant
1
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) -47% overall
Year Total Releases (lbs) vs Prior Year
2015 472,077
2016 473,034 0%
2017 498,017 +5%
2018 543,238 +9%
2019 56,332 -90%
2020 816,574 +1350%
2021 330,653 -60%
2022 253,545 -23%
2023 235,907 -7%
2024 250,816 +6%

2024

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 1 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 146,745 146,745
n-Hexane 22,552 22,526 25 1
Benzene 20,702 20,676 25 1 1,411 ♦ Carcinogen
Toluene 17,013 16,986 25 2 351
Xylene (mixed isomers) 15,279 15,273 5 1 606
Cyclohexane 8,762 8,736 25 1
Ammonia 5,994 4,608 1,386
Propylene 4,827 4,827 0
Ethylbenzene 3,668 3,643 25 1 101 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,456 2,430 25 2 8
Styrene 844 844 161 ♦ Carcinogen
Cumene 469 468 0 27 ♦ Carcinogen
Hydrogen sulfide 388 388
Diethanolamine 263 263
Ethylene glycol 226 226
Cresol (mixed isomers) 193 24 168
Naphthalene 188 187 0 57 ♦ Carcinogen
Ethylene 147 147
1,3-Butadiene 32 19 13 ♦ Carcinogen
Methanol 25 25
Carbon disulfide 17 17 0
Carbonyl sulfide 12 12
Lead compounds 6 4 3 543
Polycyclic aromatic compounds 5 4 1 ♦ Carcinogen
Benzo[g,h,i]perylene 2 2
Mercury compounds 2 2 0 6
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 1 1
Anthracene 0 0 0 0

2023

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 1 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 140,865 140,865
n-Hexane 26,362 26,334 24 4
Benzene 17,639 17,615 24 1 1,048 ♦ Carcinogen
Toluene 16,019 15,991 24 4 175
Xylene (mixed isomers) 13,992 13,986 5 2 1,469
Ammonia 4,918 4,674 243
Cyclohexane 4,780 4,755 24 2
Propylene 3,486 3,486 0
Ethylbenzene 3,261 3,237 24 1 592 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,862 1,836 24 3 12
Hydrogen sulfide 610 605 5
Styrene 484 484 58 ♦ Carcinogen
Ethylene glycol 444 444
Cumene 355 355 1 ♦ Carcinogen
Diethanolamine 262 262
Cresol (mixed isomers) 167 5 161 7
Naphthalene 160 160 0 143 ♦ Carcinogen
Ethylene 136 136
Carbon disulfide 26 26
Methanol 24 24
1,3-Butadiene 20 20 ♦ Carcinogen
Carbonyl sulfide 19 19
Lead compounds 7 4 4 5,813
Polycyclic aromatic compounds 6 4 2 ♦ Carcinogen
Mercury compounds 2 2 0 150
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0 0
Benzo[g,h,i]perylene 0 0 44
Anthracene 0 0 0 0

2022

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 1 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 122,613 122,613
n-Hexane 33,839 33,818 20 0
Benzene 29,987 29,002 20 965 508 ♦ Carcinogen
Toluene 24,539 24,518 20 0 112
Xylene (mixed isomers) 17,029 17,019 4 6 419
Ammonia 5,858 5,188 670
Cyclohexane 5,606 5,585 20 0
Propylene 4,378 4,378 0
Ethylbenzene 3,689 3,668 20 1 163 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,365 1,320 20 24 8
Hydrogen sulfide 1,001 996 5
Naphthalene 863 863 0 10 ♦ Carcinogen
Cresol (mixed isomers) 767 627 140 1
Styrene 554 554 27 ♦ Carcinogen
Cumene 477 475 1 ♦ Carcinogen
Ethylene glycol 452 452
Diethanolamine 262 262
Ethylene 109 109
Anthracene 55 55 0
Carbon disulfide 31 31
Methanol 20 20
1,3-Butadiene 20 20 ♦ Carcinogen
Carbonyl sulfide 16 16
Lead compounds 6 4 2 11,906
Polycyclic aromatic compounds 5 4 0 ♦ Carcinogen
Benzo[g,h,i]perylene 2 2
Mercury compounds 2 2 0 41
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0 0

2021

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 1 ♦ Carcinogen
Asbestos (friable) 26,050 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 155,184 155,184
n-Hexane 75,022 74,995 23 4
Benzene 31,106 31,080 23 2 568 ♦ Carcinogen
Toluene 22,285 22,135 23 127 444
Cyclohexane 12,286 12,258 23 5
Xylene (mixed isomers) 7,760 7,751 5 5 616
Ammonia 6,295 4,910 1,385
Diethanolamine 4,623 4,623
Propylene 3,942 3,940 1
Hydrogen sulfide 3,611 3,606 5
Ethylbenzene 2,969 2,943 23 2 227 ♦ Carcinogen
1,2,4-Trimethylbenzene 2,406 2,379 23 4 14
Styrene 827 827 49 ♦ Carcinogen
Ethylene glycol 751 751
Naphthalene 403 402 1 117 ♦ Carcinogen
Cumene 333 333 1 ♦ Carcinogen
Phenol 213 152 61 0
Cresol (mixed isomers) 185 27 158 2
Ethylene 101 101
Phenanthrene 95 95 0 159
Zinc compounds 95 7 88 20,239
Polycyclic aromatic compounds 73 71 2 ♦ Carcinogen
Methanol 23 0 23
Carbon disulfide 22 22
1,3-Butadiene 19 19 ♦ Carcinogen
Carbonyl sulfide 18 18
Lead compounds 7 3 3 5,515
Mercury compounds 2 2 0 38
Benzo[g,h,i]perylene 0 0 43
Anthracene 0 0 0 0

2020

Chemical Total (lbs) Air Water Land Off-Site
Benzo[g,h,i]perylene
Diethanolamine
Anthracene 0
1,2,4-Trimethylbenzene 308,505 1,616 21 306,868 42
Toluene 131,675 23,332 21 108,322 1,585
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 96,493 96,493
Ethylbenzene 76,184 3,051 21 73,112 438 ♦ Carcinogen
Benzene 49,992 38,613 21 11,358 6,470 ♦ Carcinogen
Naphthalene 35,943 426 35,517 364 ♦ Carcinogen
n-Hexane 34,334 34,286 21 27
Polycyclic aromatic compounds 27,688 197 27,491 84 ♦ Carcinogen
Cyclohexane 13,614 13,559 21 34
Propylene 12,673 12,665 8
Xylene (mixed isomers) 10,203 10,167 4 32 1,382
Cumene 7,734 342 7,392 ♦ Carcinogen
Hydrogen sulfide 5,532 5,527 5
Ammonia 4,538 4,089 449
Styrene 931 931 117 ♦ Carcinogen
Phenol 188 158 30 0
Cresol (mixed isomers) 170 28 142 26
Ethylene 89 89
Methanol 21 21
Carbon disulfide 20 20
1,3-Butadiene 19 19 ♦ Carcinogen
Carbonyl sulfide 16 16
Lead compounds 6 3 3 1,713
n-Butyl alcohol 5 5
Mercury compounds 1 1 0 27

2019

Chemical Total (lbs) Air Water Land Off-Site
Toluene 21,820 21,660 20 140 346
Xylene (mixed isomers) 10,110 10,100 4 6 731
Propylene 9,921 9,920 1
Ammonia 6,605 4,705 1,900
Hydrogen sulfide 6,405 6,400 5
Styrene 1,370 1,370 73 ♦ Carcinogen
Ethylene 101 101

2018

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 335,072 335,072
n-Hexane 92,174 92,146 24 4
Benzene 25,088 25,007 24 58 940 ♦ Carcinogen
Toluene 23,543 22,974 24 544 203
Cyclohexane 16,230 16,204 24 3
Xylene (mixed isomers) 15,489 15,480 5 4 491
Ammonia 9,730 9,302 428
Ethylbenzene 5,476 5,088 24 364 248 ♦ Carcinogen
Hydrogen sulfide 5,466 5,461 5
1,2,4-Trimethylbenzene 3,989 2,435 24 1,530 36
Diethanolamine 2,838 2,838
Propylene 2,531 2,531 1
Naphthalene 1,565 1,388 178 63 ♦ Carcinogen
Styrene 1,523 1,522 0 176 ♦ Carcinogen
Cumene 840 799 41 ♦ Carcinogen
Polycyclic aromatic compounds 585 432 153 3 ♦ Carcinogen
n-Butyl alcohol 352 352
Phenol 271 151 120 0
Cresol (mixed isomers) 192 28 164 3
Ethylene 120 120
Methanol 53 28 24
Lead compounds 38 4 18 16 2,102
Carbon disulfide 26 26 0
1,3-Butadiene 23 23 ♦ Carcinogen
Carbonyl sulfide 21 21
Mercury compounds 3 2 1 0 37
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 2 2
Benzo[g,h,i]perylene 1 1

2017

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 8,977 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 329,626 329,626
n-Hexane 76,983 76,956 22 5
Benzene 22,388 22,346 22 20 3,471 ♦ Carcinogen
Toluene 20,355 20,313 22 20 498
Cyclohexane 11,102 11,071 22 9
Ammonia 9,602 9,282 320
Xylene (mixed isomers) 9,589 9,558 5 26 2,004
Hydrogen sulfide 5,097 5,092 5
Ethylbenzene 3,812 3,776 22 14 653 ♦ Carcinogen
Diethanolamine 3,327 3,327
1,2,4-Trimethylbenzene 1,705 1,624 22 59 50
Styrene 1,403 1,403 2,312 ♦ Carcinogen
Propylene 942 941 1
Cumene 706 702 4 ♦ Carcinogen
Polycyclic aromatic compounds 468 463 5 0 ♦ Carcinogen
Naphthalene 389 368 21 597 ♦ Carcinogen
Cresol (mixed isomers) 175 26 149 16
Ethylene 108 108
Nickel compounds 75 51 24 18,026 ♦ Carcinogen
Methanol 45 23 22
n-Butyl alcohol 31 31
1,3-Butadiene 24 24 ♦ Carcinogen
Carbon disulfide 23 23 0
Lead compounds 20 4 16 6,377
Carbonyl sulfide 18 18
Mercury compounds 3 2 1 49
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 2 2
Benzo[g,h,i]perylene 1 1

2016

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 8,962 ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 312,559 312,559
n-Hexane 70,966 70,935 23 8
Benzene 22,271 22,241 23 7 1,513 ♦ Carcinogen
Toluene 19,212 19,175 23 13 483
Cyclohexane 11,295 11,269 23 3
Xylene (mixed isomers) 9,422 9,414 5 3 447
Ammonia 7,979 6,673 1,306
Hydrogen sulfide 6,043 6,038 5
Ethylbenzene 3,695 3,669 23 3 234 ♦ Carcinogen
Diethanolamine 3,339 3,339
1,2,4-Trimethylbenzene 1,817 1,779 23 14 41
Styrene 1,405 1,405 137 ♦ Carcinogen
Propylene 815 815
Cumene 687 685 1 ♦ Carcinogen
Polycyclic aromatic compounds 509 498 12 0 ♦ Carcinogen
Naphthalene 382 378 3 41 ♦ Carcinogen
Cresol (mixed isomers) 183 26 157 2
Zinc compounds 127 8 119 20,253
n-Butyl alcohol 96 96
Nickel compounds 76 52 24 17,533 ♦ Carcinogen
Ethylene 76 76
1,3-Butadiene 25 25 ♦ Carcinogen
Lead compounds 20 4 16 10,260
Carbon disulfide 19 19
Carbonyl sulfide 15 15
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3 3
Mercury compounds 2 2 1 18
Benzo[g,h,i]perylene 1 1

2015

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 326,894 326,894
n-Hexane 49,645 49,588 24 33 1
Toluene 24,512 24,480 24 8 1,823
Benzene 24,193 24,168 24 1 5,797 ♦ Carcinogen
Ammonia 12,615 6,759 5,856
Xylene (mixed isomers) 7,864 7,856 5 3 1,120
Cyclohexane 7,686 7,657 24 5 1
Hydrogen sulfide 4,955 4,950 5
Propylene 4,494 4,494 0
Diethanolamine 3,333 3,333
Ethylbenzene 2,480 2,450 24 6 412 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,176 1,144 24 8 66
Styrene 558 558 105 ♦ Carcinogen
Polycyclic aromatic compounds 392 391 1 103 ♦ Carcinogen
Naphthalene 335 332 3 334 ♦ Carcinogen
Cresol (mixed isomers) 188 23 165 12
Cumene 164 162 2 1 ♦ Carcinogen
Ethylene 139 139
Phenol 124 98 26 0
Phenanthrene 80 80 120
Nickel compounds 79 53 26 267 ♦ Carcinogen
Methanol 71 47 24
1,3-Butadiene 29 29 ♦ Carcinogen
Carbon disulfide 27 27
Lead compounds 22 4 18 1,303
Carbonyl sulfide 18 18
Mercury compounds 2 2 1 25
Anthracene 1 1 0
Benzo[g,h,i]perylene 1 1

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
Polycyclic aromatic compounds 0
Carbon disulfide 14,669
Mercury compounds 0
Styrene 0
Molybdenum trioxide 0
Carbonyl sulfide 11,666
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 27,815
Ethylene glycol 75,047
Benzene 171 11,644 171,357
Hydrogen sulfide 114,240
Ammonia 2,249,424 27,078
Cresol (mixed isomers) 1,630 56,039
Benzo[g,h,i]perylene 0
Lead compounds 48
Naphthalene 0 225 19
Ethylbenzene 0 1,567 8,239
Xylene (mixed isomers) 3 11,314 3,784
n-Hexane 3,022 320,902
Toluene 0 8,154 25,573
Cumene 0 1,020 14
1,2,4-Trimethylbenzene 16,609 8,147
Methanol 14,547 8,147
Cyclohexane 1,020 8,577

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
1,2,4-Trimethylbenzene 8
US ECOLOGY TEXAS
ROBSTOWN, TX
Lead compounds 496
US ECOLOGY TEXAS
ROBSTOWN, TX
Molybdenum trioxide 0
US ECOLOGY TEXAS
ROBSTOWN, TX
Cumene 14
US ECOLOGY TEXAS
ROBSTOWN, TX
Mercury compounds 0
CALGON CARBON, A KURARAY COMPANY
CROSBY, TX
Toluene 141
US ECOLOGY TEXAS
ROBSTOWN, TX
Toluene 12
US ECOLOGY TEXAS
ROBSTOWN, TX
Anthracene 0
US ECOLOGY TEXAS
ROBSTOWN, TX
Naphthalene 0
CALGON CARBON, A KURARAY COMPANY
CROSBY, TX
Xylene (mixed isomers) 13
US ECOLOGY TEXAS
ROBSTOWN, TX
Xylene (mixed isomers) 409
CALGON CARBON, A KURARAY COMPANY
CROSBY, TX
Benzene 1,117
US ECOLOGY TEXAS
ROBSTOWN, TX
Benzene 77
US ECOLOGY TEXAS
ROBSTOWN, TX
Styrene 161
US ECOLOGY TEXAS
ROBSTOWN, TX
Carbon disulfide 0
CALGON CARBON, A KURARAY COMPANY
CROSBY, TX
Ethylbenzene 11
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylbenzene 54

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
cwa Schedule Event achieved late but reported Oct 10, 2025 Open
caa FRV Oct 9, 2025 Open
cwa Permit Violations - Violation Specified in Comment Jul 17, 2025 Sep 2, 2025 Resolved
caa FRV Jun 27, 2025 Open
rcra HW Management System: Rulemaking Petitions May 15, 2025 Jun 16, 2025 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 15, 2025 May 15, 2025 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Apr 16, 2025 Apr 17, 2025 Resolved
cwa Permit Violations - Violation Specified in Comment Feb 5, 2025 Aug 26, 2025 Resolved
caa FRV Jun 16, 2023 Open
caa FRV Aug 26, 2022 Open
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jun 22, 2022 Jul 18, 2022 Resolved
caa FRV Aug 27, 2021 Open
caa FRV Jan 25, 2021 Open
caa FRV Oct 14, 2020 Open
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 19, 2017 Aug 18, 2017 Resolved
rcra Standards Applicable to Generators of HW: General May 19, 2017 Aug 18, 2017 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems May 18, 2017 Dec 29, 2017 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers May 18, 2017 Dec 29, 2017 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 18, 2017 Jan 19, 2018 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers May 18, 2017 Dec 29, 2017 Resolved
rcra Standards for Used Oil: Generators May 18, 2017 May 18, 2017 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators May 18, 2017 May 18, 2017 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards May 17, 2017 Jan 25, 2018 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 17, 2017 Dec 29, 2017 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Apr 29, 2014 May 14, 2015 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Apr 29, 2014 Apr 29, 2014 Resolved
rcra Standards Applicable to Generators of HW: General Apr 29, 2014 May 13, 2014 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program General Information Apr 29, 2014 May 14, 2015 Resolved
cwa Schedule Event achieved late but reported Jul 1, 2011 Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers May 3, 2011 Aug 10, 2011 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 3, 2011 Aug 10, 2011 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators May 3, 2011 Aug 10, 2011 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems May 3, 2011 Aug 10, 2011 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards May 3, 2011 May 4, 2011 Resolved
cwa Schedule Event achieved late but reported Apr 1, 2011 Open
cwa Schedule Event achieved late but reported Jan 1, 2011 Open
cwa Schedule Event reported late Jan 1, 2011 Open
cwa Schedule Event achieved late but reported Oct 1, 2010 Open
cwa Schedule Event achieved late but reported Jul 1, 2010 Open
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators May 25, 2010 Jun 2, 2010 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators May 25, 2010 Jun 7, 2010 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 25, 2010 May 25, 2010 Resolved
rcra Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting May 25, 2010 May 25, 2010 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards May 25, 2010 Jul 21, 2010 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
Solids, total suspended DMR, Limited - Numeric Violation 391.32 kg/d 383.63 +2% Jun 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 798.59 kg/d 641.50 +24% Jun 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 3.16 kg/d 0.41 +674% Mar 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 0.33 kg/d 0.18 +81% Mar 2024 Resolved
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 0.33 kg/d 0.18 +81% Mar 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 3.16 kg/d 0.41 +674% Mar 2024 Resolved
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 0.31 kg/d 0.18 +69% Feb 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 0.31 kg/d 0.18 +69% Feb 2024 Resolved
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 2.27 kg/d 0.41 +456% Feb 2024 Resolved
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 2.27 kg/d 0.41 +456% Feb 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 1.36 kg/d 0.41 +234% Jan 2024 Open
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 1.36 kg/d 0.41 +234% Jan 2024 Resolved
Sulfide, total [as S] DMR, Limited - Numeric Violation 12.04 kg/d 3.63 +231% May 2023 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 2.23 kg/d 1.63 +36% May 2023 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 1,389.69 kg/d 341.41 +307% May 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 350.03 kg/d 189.77 +84% May 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 922.98 kg/d 341.41 +170% Feb 2021 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 244.25 kg/d 189.77 +29% Feb 2021 Open
Oil & Grease DMR, Limited - Numeric Violation 29.60 mg/L 15.00 +97% Jun 2020 Open
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 161.00 mg/L 55.00 +193% May 2020 Resolved
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 101.00 mg/L 55.00 +84% Jan 2020 Resolved
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 189.45 kg/d 126.21 +50% Nov 2019 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 477.06 kg/d 341.41 +40% Nov 2019 Open
Nitrogen, ammonia total [as N] DMR, Limited - Numeric Violation 373.01 kg/d 277.85 +34% Nov 2019 Open
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 68.50 mg/L 55.00 +25% Nov 2019 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 582.03 kg/d 341.41 +70% Oct 2019 Open
Oil & Grease DMR, Limited - Numeric Violation 38.30 mg/L 15.00 +155% Jun 2018 Open
Carbon, tot organic [TOC] DMR, Limited - Numeric Violation 93.40 mg/L 55.00 +70% Oct 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 348.67 kg/d 341.41 +2% Aug 2017 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 356.39 kg/d 341.41 +4% 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.

Date Out of Range
Clean Air Act · Case 3603360746
Date Out of Range
Clean Air Act · Case 3604641809
Date Out of Range
Clean Air Act · Case 3604461519
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-18 · Jun 23, 2025
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-17 · Jun 6, 2025
Administrative - Formal
Clean Air Act · Case 3603643553 · Jul 23, 2024
$8,680
State CWA Penalty AO
Clean Water Act · Case TX-2020-1555-IWD-E · Oct 16, 2023
$28,675
Administrative - Formal
Clean Air Act · Case 3602480420 · Nov 28, 2022
$67,500
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-16 · Aug 1, 2022
Administrative - Formal
Clean Air Act · Case 3602318897 · Nov 30, 2021
$5,813
Administrative - Formal
· Case 06-2021-1714 · Mar 29, 2021
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-15 · Jul 17, 2017
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-14 · Aug 20, 2014
REFERRAL TO ESC ENFORCEMENT SCREEN COMM.
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-13 · Jul 9, 2014
LETTER OF INTENT TO INITIATE ENFORCEMENT ACTION
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-12 · Jul 3, 2014
State CWA Penalty AO
Clean Water Act · Case TX-2013-0248-IWD-E · Oct 18, 2013
$8,438
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-11 · Jul 11, 2011
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-10 · Aug 2, 2010
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-9 · Aug 23, 2009
$108,900
REMANDED FOR HEARING
RCRA (Hazardous Waste) · Case RCRA-TXD008132268-8 · Jan 23, 2009

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