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

FLINT HILLS RESOURCES CORPUS CHRISTI EAST PLANT

Quick Summary

  • Released 677,742 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 $60,500 in total penalties since records began.
  • Reports releases of chemicals classified as known or probable carcinogens.
Address
1607 NUECES BAY BLVD.
CORPUS CHRISTI, TX 78407
View on map ↗
County
NUECES County
Industry
Manufacturing
NAICS (North American Industry Classification)
324110
Inspections
6 · last Feb 3, 2026
Total Penalties
$60,500 · last Aug 28, 2024
Registry ID
110038173981

How This Compares

#58 of 1,879 TRI reporters in TX
#294 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
2
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) -55% overall
Year Total Releases (lbs) vs Prior Year
2015 550,492
2016 476,677 -13%
2017 677,742 +42%
2018 452,679 -33%
2019 271,430 -40%
2020 321,439 +18%
2021 363,801 +13%
2022 185,026 -49%
2023 223,349 +21%
2024 245,480 +10%

2024

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 6
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 151,994 151,994 15,954
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 33,195 33,195
Hydrogen cyanide 13,528 13,528
Propylene 6,687 6,687
Toluene 6,482 6,470 12 717
Ozone 6,195 6,195
Hydrogen sulfide 5,304 5,304
Benzene 4,440 4,428 12 35 ♦ Carcinogen
Xylene (mixed isomers) 4,407 4,405 2 1,391
n-Hexane 4,062 4,062
Ammonia 3,837 3,795 42
Ethylene 2,122 2,122
Ethylbenzene 1,058 1,046 12 253 ♦ Carcinogen
1,2,4-Trimethylbenzene 978 978
Naphthalene 314 314 ♦ Carcinogen
Cyclohexane 299 299
Cumene 148 148 ♦ Carcinogen
Polycyclic aromatic compounds 79 72 0 7 0 ♦ Carcinogen
1,3-Butadiene 78 78 ♦ Carcinogen
Phenol 76 23 53
Carbonyl sulfide 75 75
Diethanolamine 65 65
Carbon disulfide 34 34
Anthracene 22 22
Benzo[g,h,i]perylene 1 1 0
Lead compounds 0 0 119

2023

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 5
Lead compounds 178
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 130,376 130,376 20,876
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 41,705 41,705
Hydrogen cyanide 15,453 15,453
Ozone 6,928 6,928
Hydrogen sulfide 5,865 5,865
Toluene 5,729 5,714 15 3,130
Benzene 3,921 3,906 15 5 ♦ Carcinogen
Xylene (mixed isomers) 3,383 3,379 4 1,153
n-Hexane 2,978 2,978
Ammonia 2,036 1,910 126
Propylene 1,930 1,930
Ethylbenzene 857 842 15 164 ♦ Carcinogen
Ethylene 787 787
1,2,4-Trimethylbenzene 712 712
Cyclohexane 164 164
Naphthalene 133 133 ♦ Carcinogen
Carbonyl sulfide 75 75
Cumene 72 72 ♦ Carcinogen
Polycyclic aromatic compounds 68 61 7 0 ♦ Carcinogen
Diethanolamine 44 22 22
1,3-Butadiene 44 44 ♦ Carcinogen
Carbon disulfide 34 34
Phenol 33 12 21
Benzo[g,h,i]perylene 16 16
Anthracene 7 7

2022

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 4
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 132,366 132,366 22,053
Hydrogen cyanide 14,869 14,869
Ozone 6,705 6,705
Toluene 6,071 6,057 14 3,251
Hydrogen sulfide 5,149 5,149
Benzene 4,015 4,001 14 6 ♦ Carcinogen
Xylene (mixed isomers) 3,968 3,965 3 1,881
n-Hexane 3,317 3,317
Propylene 1,985 1,985
Ammonia 1,879 1,645 234
Ethylbenzene 934 920 14 260 ♦ Carcinogen
1,2,4-Trimethylbenzene 828 828
Vanadium compounds 699 699 5,775
Ethylene 667 667
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 654 654 2,815
Naphthalene 264 264 2 ♦ Carcinogen
Cyclohexane 171 168 3
Polycyclic aromatic compounds 104 62 42 2 ♦ Carcinogen
Cumene 97 97 ♦ Carcinogen
Carbonyl sulfide 75 75
1,3-Butadiene 57 57 ♦ Carcinogen
Carbon disulfide 41 34 7
Phenol 37 21 16 0
Pentachlorobenzene 28 28
Benzo[g,h,i]perylene 16 16
Hexachlorobenzene 14 14 ♦ Carcinogen
Diethanolamine 8 4 4
Lead compounds 7 7 161
Anthracene 1 1 0

2021

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 8
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 309,746 309,746 19,309
Hydrogen cyanide 14,548 14,548
Ozone 6,580 6,580
Toluene 5,964 5,945 19 3,352
Hydrogen sulfide 5,414 5,414
Xylene (mixed isomers) 4,505 4,501 4 2,195
Benzene 4,254 4,196 19 39 6 ♦ Carcinogen
n-Hexane 2,812 2,812
Propylene 2,136 2,136
Ammonia 1,683 1,528 155
Vanadium compounds 1,152 1,152 4,459
Ethylbenzene 1,131 1,112 19 386 ♦ Carcinogen
1,2,4-Trimethylbenzene 919 897 22
Ethylene 845 845
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 825 825 4,577
Naphthalene 269 269 ♦ Carcinogen
Cyclohexane 238 234 4
m-Xylene 121 121
Polycyclic aromatic compounds 103 49 54 0 ♦ Carcinogen
1,3-Butadiene 101 101 ♦ Carcinogen
Cumene 78 78 ♦ Carcinogen
Phenol 77 25 52
Carbonyl sulfide 75 75
p-Xylene 52 52
Carbon disulfide 43 34 9
o-Xylene 41 41 643
Pentachlorobenzene 38 38
Hexachlorobenzene 19 19 ♦ Carcinogen
Benzo[g,h,i]perylene 15 15
Lead compounds 9 9 252
Anthracene 6 6
Diethanolamine 2 2

2020

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 3
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 275,194 275,194 25,477
Hydrogen cyanide 10,909 10,909
Toluene 6,022 6,006 16 1,854
Ozone 5,194 5,194
Benzene 4,171 4,155 16 4 ♦ Carcinogen
Xylene (mixed isomers) 3,938 3,935 3 281
n-Hexane 2,862 2,862
Propylene 2,671 2,671
Hydrogen sulfide 2,569 2,569
Ammonia 2,392 2,320 72
Ethylbenzene 1,045 1,029 16 55 ♦ Carcinogen
1,2,4-Trimethylbenzene 919 919 0
Vanadium compounds 871 871 3,079
Ethylene 735 735
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 722 722 4,495
Naphthalene 268 268 0 4 ♦ Carcinogen
m-Xylene 215 215
Cyclohexane 118 115 3
Polycyclic aromatic compounds 93 46 47 2 ♦ Carcinogen
Cumene 87 87 ♦ Carcinogen
Carbonyl sulfide 75 75
1,3-Butadiene 67 67 ♦ Carcinogen
p-Xylene 66 66
o-Xylene 53 53 85
Carbon disulfide 42 34 8
Phenol 37 27 10 0
Pentachlorobenzene 33 33
Hexachlorobenzene 16 16 ♦ Carcinogen
Benzo[g,h,i]perylene 13 13
Anthracene 12 12 1
Polychlorinated biphenyls 11 11 ♦ Carcinogen
Cobalt compounds 8 8 ♦ Carcinogen
Lead compounds 8 0 8 202
Diethanolamine 2 2

2019

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 1
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 214,220 214,220 38,055
Hydrogen cyanide 15,493 15,493
Toluene 7,749 7,730 19 26
Ozone 6,943 6,943
n-Hexane 4,965 4,965
Xylene (mixed isomers) 4,927 4,923 4 49
Benzene 3,798 3,779 19 5 ♦ Carcinogen
Ammonia 3,475 3,393 82
Propylene 2,948 2,948
1,2,4-Trimethylbenzene 1,046 1,046 0
Vanadium compounds 1,023 1,023 14
Ethylbenzene 1,021 1,002 19 13 ♦ Carcinogen
Ethylene 874 874
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 848 848 4,740
m-Xylene 753 753
Naphthalene 274 274 1 ♦ Carcinogen
p-Xylene 200 200
o-Xylene 195 195 12
Cyclohexane 123 119 4
Anthracene 113 113 0
Cumene 96 96 ♦ Carcinogen
Carbonyl sulfide 75 75
Polycyclic aromatic compounds 70 16 54 0 ♦ Carcinogen
1,3-Butadiene 70 70 ♦ Carcinogen
Carbon disulfide 53 34 19
Phenol 41 30 11 0
Benzo[g,h,i]perylene 16 16
Lead compounds 9 0 9 116
Cobalt compounds 9 9 636 ♦ Carcinogen
Diethanolamine 3 0 2

2018

Chemical Total (lbs) Air Water Land Off-Site
Molybdenum trioxide 1,988 ♦ Carcinogen
Mercury compounds 2
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 390,224 390,224 38,422
Hydrogen cyanide 14,009 14,009
Hydrogen sulfide 11,154 11,154
Toluene 7,743 7,721 23 0 23
Ozone 6,376 6,376
Xylene (mixed isomers) 4,972 4,963 8 0 57
Benzene 4,570 4,548 22 0 7 ♦ Carcinogen
n-Hexane 3,340 3,340 0
Propylene 2,912 2,912
Ammonia 1,998 1,887 111
Ethylbenzene 1,262 1,240 22 0 12 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,131 1,128 3 0
Ethylene 834 834
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 646 646 6,849
Naphthalene 290 290 0 0 ♦ Carcinogen
Cyclohexane 217 212 5 0
Phenol 203 31 172 0 23
Vanadium compounds 189 189 5,648
Polycyclic aromatic compounds 108 46 62 ♦ Carcinogen
Cumene 107 107 ♦ Carcinogen
1,3-Butadiene 78 78 ♦ Carcinogen
Carbonyl sulfide 75 75
Cobalt compounds 60 60 4,414 ♦ Carcinogen
m-Xylene 52 52
Carbon disulfide 44 34 10
o-Xylene 24 24 25
p-Xylene 23 23
Benzo[g,h,i]perylene 14 14
Lead compounds 13 13 156
Anthracene 10 10
Diethanolamine 3 3

2017

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds 1
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 555,604 555,604 42,631
Hydrogen cyanide 50,853 50,853
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 17,006 17,006
Hydrogen sulfide 11,675 11,675
Ozone 8,053 8,053
Propylene 7,494 7,494
Toluene 6,904 6,886 18 9,158
Benzene 5,717 5,699 18 4,855 ♦ Carcinogen
Xylene (mixed isomers) 4,135 4,131 4 3,893
n-Hexane 3,308 3,308
Ammonia 1,821 1,807 14
1,2,4-Trimethylbenzene 1,096 1,095 1 1
Ethylbenzene 1,066 1,048 18 1,247 ♦ Carcinogen
Ethylene 876 876
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 526 526 1,846
Naphthalene 272 272 ♦ Carcinogen
m-Xylene 202 202 2
Cyclohexane 178 174 4 1
Vanadium compounds 168 168 4,281
o-Xylene 135 135 464
Cumene 129 129 ♦ Carcinogen
p-Xylene 127 127
Phenol 93 29 64 6
Carbonyl sulfide 75 75
Polycyclic aromatic compounds 61 10 52 ♦ Carcinogen
1,3-Butadiene 55 55 ♦ Carcinogen
Carbon disulfide 42 34 8
Cobalt compounds 23 23 185 ♦ Carcinogen
Anthracene 19 19
Benzo[g,h,i]perylene 15 15
Lead compounds 9 9 114
Diethanolamine 5 1 4

2016

Chemical Total (lbs) Air Water Land Off-Site
Anthracene 1
Mercury compounds 7
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 364,837 364,837 559,941
Hydrogen cyanide 38,549 38,549
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 16,026 16,026
Toluene 11,508 11,487 18 3 154
Xylene (mixed isomers) 8,826 8,822 4 579
Benzene 8,236 8,216 18 2 2 ♦ Carcinogen
Ozone 6,351 6,351
Hydrogen sulfide 6,199 6,199
n-Hexane 4,495 4,494 1
Propylene 2,949 2,949
1,2,4-Trimethylbenzene 2,256 2,256 32
Ethylbenzene 1,963 1,944 18 1 134 ♦ Carcinogen
Ethylene 925 925
Ammonia 856 656 200
Naphthalene 778 777 1 2 ♦ Carcinogen
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 532 17 515 10,744
m-Xylene 208 208 82
Vanadium compounds 162 162 11,734
Cyclohexane 156 150 4 2
Polycyclic aromatic compounds 151 100 50 21 ♦ Carcinogen
Cumene 112 112 1 ♦ Carcinogen
Phenol 108 33 74 1
o-Xylene 106 106 19
p-Xylene 100 100
Carbonyl sulfide 75 75
1,3-Butadiene 60 60 ♦ Carcinogen
Diethanolamine 60 1 59
Carbon disulfide 42 34 8
Cobalt compounds 27 1 26 1 ♦ Carcinogen
Benzo[g,h,i]perylene 15 15
Lead compounds 9 9 254

2015

Chemical Total (lbs) Air Water Land Off-Site
Anthracene 1
Mercury compounds 5
Molybdenum trioxide ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 414,827 414,827 665,404
Hydrogen cyanide 67,131 67,131
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 18,853 18,853
Toluene 8,205 8,185 20 588
Benzene 7,775 7,755 20 97 ♦ Carcinogen
Hydrogen sulfide 6,449 6,449
Ozone 6,389 6,389
Xylene (mixed isomers) 6,149 6,145 4 513
n-Hexane 3,609 3,609 3
Propylene 2,502 2,502
1,2,4-Trimethylbenzene 1,932 1,932 9
Ethylbenzene 1,569 1,549 20 215 ♦ Carcinogen
Ammonia 1,193 1,081 112
Naphthalene 729 729 12 ♦ Carcinogen
Ethylene 688 688
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 611 21 590 28,143
m-Xylene 397 397 280
Polycyclic aromatic compounds 225 168 57 1 ♦ Carcinogen
Phenol 209 28 181 3
p-Xylene 198 198
Vanadium compounds 176 175 1 9,684
o-Xylene 171 171
Cyclohexane 100 96 4 5
Cumene 99 99 1 ♦ Carcinogen
Carbonyl sulfide 75 75
1,3-Butadiene 73 73 ♦ Carcinogen
Cobalt compounds 61 61 13,227 ♦ Carcinogen
Carbon disulfide 43 34 9
Diethanolamine 28 3 25
Benzo[g,h,i]perylene 15 15
Lead compounds 12 12 535

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
Ethylene 116,568 136,953
Diethanolamine 11,054
Hydrogen cyanide 107,584
Carbon disulfide 1
Cumene 286
Carbonyl sulfide 395
Propylene 403,457 456,345
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 287,647
Toluene 541 18,334
Ammonia 159,978
Benzene 1 21,832 35,717
Ethylbenzene 158 871
Hydrogen sulfide 11,999 38,736
Phenol 34,165
1,3-Butadiene 1,357 506
Cyclohexane 6,580
Naphthalene 5,353
Xylene (mixed isomers) 1,183 5,770
n-Hexane 451,063 172,421

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
EL CENTRO LANDFILL
ROBSTOWN, TX
Naphthalene
US ECOLOGY TEXAS
ROBSTOWN, TX
Phenol
EL CENTRO LANDFILL
ROBSTOWN, TX
Phenol
US ECOLOGY TEXAS
ROBSTOWN, TX
Mercury compounds 6
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Mercury compounds 0
EL CENTRO LANDFILL
ROBSTOWN, TX
Mercury compounds 0
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylbenzene 90
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Ethylbenzene 5
EL CENTRO LANDFILL
ROBSTOWN, TX
Ethylbenzene
US ECOLOGY TEXAS
ROBSTOWN, TX
Benzene 30
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Benzene 4
EL CENTRO LANDFILL
ROBSTOWN, TX
Benzene
US ECOLOGY TEXAS
ROBSTOWN, TX
Lead compounds 112
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Lead compounds 0
EL CENTRO LANDFILL
ROBSTOWN, TX
Lead compounds 6
US ECOLOGY TEXAS
ROBSTOWN, TX
Polycyclic aromatic compounds
EL CENTRO LANDFILL
ROBSTOWN, TX
Polycyclic aromatic compounds 0
US ECOLOGY TEXAS
ROBSTOWN, TX
Toluene 541
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Toluene 4
EL CENTRO LANDFILL
ROBSTOWN, TX
Toluene
US ECOLOGY TEXAS
ROBSTOWN, TX
Xylene (mixed isomers) 172
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Xylene (mixed isomers) 36
EL CENTRO LANDFILL
ROBSTOWN, TX
Xylene (mixed isomers)
US ECOLOGY TEXAS
ROBSTOWN, TX
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 187
TEXAS MOLECULAR - DEER PARK
DEER PARK, TX
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 15,767

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 FRV Mar 19, 2025 Open
caa FRV Mar 19, 2025 Open
caa FRV Sep 30, 2024 Open
cwa Permit Violations - Violation Specified in Comment Jun 25, 2024 Jun 25, 2024 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Oct 5, 2022 Oct 12, 2022 Resolved
caa FRV Aug 31, 2022 Open
cwa Permit Violations - Violation Specified in Comment May 18, 2022 May 18, 2022 Resolved
cwa Schedule Event reported late Oct 15, 2018 Open
cwa Permit Violations - Violation Specified in Comment Mar 15, 2018 Open
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Feb 21, 2017 Feb 22, 2017 Resolved
cwa Permit Violations - Violation Specified in Comment May 11, 2016 Open
cwa Permit Violations - Violation Specified in Comment Jul 8, 2014 Open
cwa Schedule Event unachieved and not reported May 17, 2014 Jan 14, 2015 Resolved
cwa Schedule Event reported late May 17, 2014 Open
cwa Schedule Event achieved late but reported May 17, 2014 Open
cwa Schedule Event unachieved but reported May 17, 2014 Jan 14, 2015 Resolved
cwa Schedule Event achieved late but reported Apr 1, 2014 Open
cwa Schedule Event achieved late but reported Jan 1, 2014 Open
cwa Schedule Event achieved late but reported Oct 1, 2013 Open
cwa Schedule Event achieved late but reported Jul 1, 2013 Open
cwa Schedule Event achieved late but reported Apr 1, 2013 Open
cwa Schedule Event reported late Jan 1, 2013 Open
cwa Schedule Event achieved late but reported Jan 1, 2013 Open
cwa Schedule Event achieved late but reported Oct 1, 2012 Open
cwa Schedule Event achieved late but reported Jul 1, 2012 Open
cwa Schedule Event reported late Jul 1, 2012 Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Jun 28, 2012 Sep 25, 2012 Resolved
rcra Standards Applicable to Generators of HW: General Jun 28, 2012 Sep 25, 2012 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jun 28, 2012 Sep 25, 2012 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards Jun 28, 2012 Sep 25, 2012 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jun 28, 2012 Sep 25, 2012 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Jun 26, 2012 Jun 26, 2012 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jun 26, 2012 Sep 25, 2012 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jun 26, 2012 Sep 25, 2012 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Preparedness and Prevention Jun 26, 2012 Sep 25, 2012 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Jun 26, 2012 Sep 25, 2012 Resolved
cwa Schedule Event reported late Apr 1, 2012 Open
cwa Schedule Event achieved late but reported Apr 1, 2012 Open
cwa Schedule Event reported late Jan 1, 2012 Open
cwa Schedule Event achieved late but reported Jan 1, 2012 Open
cwa Schedule Event achieved late but reported Oct 1, 2011 Open
cwa Schedule Event reported late Oct 1, 2011 Open
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers May 11, 2011 May 20, 2011 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 11, 2011 May 20, 2011 Resolved
rcra Land Disposal Restrictions: General May 10, 2011 May 20, 2011 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers May 10, 2011 May 20, 2011 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 10, 2011 Jul 22, 2011 Resolved
rcra Land Disposal Restrictions: General Aug 31, 2010 Aug 31, 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
Sulfide, total [as S] DMR, Limited - Numeric Violation 3.59 kg/d 2.00 +80% Oct 2024 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 3.50 kg/d 2.00 +75% Oct 2023 Open
Oxygen demand, chem. [high level] [COD] DMR, Limited - Numeric Violation 225.00 mg/L 150.00 +50% Oct 2018 Open
Oxygen demand, chem. [high level] [COD] DMR, Limited - Numeric Violation 188.00 mg/L 150.00 +25% Jun 2016 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 2.18 kg/d 2.00 +9% 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.

Judicial
· Case 06-2000-0880
Administrative - Formal
Clean Air Act · Case 3604288025 · Mar 10, 2026
Administrative - Formal
Clean Air Act · Case 3603427188 · Aug 28, 2024
$60,500
VERBAL INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-7 · Nov 10, 2022
VERBAL INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-6 · Apr 21, 2017
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-5 · Aug 28, 2012
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-4 · Jul 8, 2011
VERBAL INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-3 · Sep 15, 2010
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-2 · Jul 30, 2010
Administrative - Formal
· Case 06-2009-3313 · Oct 1, 2009
$37,500
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXD066447376-1 · Aug 28, 2009
Administrative - Formal
· Case 06-2006-3328 · Apr 17, 2006
Judicial
· Case 05-2000-0584 · Apr 25, 2001
$4,500,000
Administrative - Formal
· Case 06-1998-0080 · Feb 9, 1998
$12,000
Administrative - Formal
· Case 06-1996-0444 · Jan 29, 1997
$22,400
CWA 309A AO For Compliance
Clean Water Act · Case 06-1994-N305 · Nov 24, 1993
CWA 309A AO For Compliance
Clean Water Act · Case 06-1991-N406 · Aug 29, 1991
CWA 309A AO For Compliance
Clean Water Act · Case 06-1987-N201 · Apr 29, 1987

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