Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
NORCO MANUFACTURING COMPLEX & ASSOCIATED FACILITIES
Quick Summary
- •Released 682,179 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 $1,069,225 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
15536 RIVER ROAD
NORCO, LA 70079
View on map ↗ - County
- ST. CHARLES PARISH County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 324110
- Inspections
- 7 · last May 13, 2024
- Total Penalties
- $1,069,225 · last Sep 25, 2025
- Registry ID
- 110013831201
How This Compares
#41
of 419 TRI reporters in LA
#292
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
5
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
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)
+753% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 651,240 | — |
| 2016 | 388,571 | -40% |
| 2017 | 682,179 | +76% |
| 2018 | 812,651 | +19% |
| 2019 | 81,711 | -90% |
| 2020 | 574,185 | +603% |
| 2021 | 227,225 | -60% |
| 2022 | 213,587 | -6% |
| 2023 | 554,115 | +159% |
| 2024 | 5,553,492 | +902% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Carbon disulfide | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Sodium nitrite | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Acetonitrile | — | — | — | — | 68,445 | |
| Chlorine | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| Hydrazine | — | — | — | — | 4,807 | ♦ Carcinogen |
| 2,4-Dimethylphenol | — | — | — | — | 4,416 | |
| Cyclohexane | — | — | — | — | 2,622 | |
| Anthracene | — | — | — | — | — | |
| Propylene | 5,166,814 | 5,166,814 | — | — | — | |
| Ethylene | 239,589 | 239,589 | — | — | — | |
| Toluene | 25,490 | 25,453 | — | 38 | 38,859 | |
| 1,3-Butadiene | 21,463 | 21,463 | — | — | 874 | ♦ Carcinogen |
| Xylene (mixed isomers) | 18,245 | 18,236 | — | 9 | 20,313 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 17,310 | 17,310 | — | — | — | |
| Benzene | 15,682 | 15,648 | — | 34 | 105,578 | ♦ Carcinogen |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Naphthalene | 8,888 | 8,888 | — | — | 4,370 | ♦ Carcinogen |
| n-Hexane | 8,788 | 8,730 | — | 58 | 1,325 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,255 | 6,255 | — | — | — | |
| Ethylbenzene | 4,558 | 4,517 | — | 41 | 48,574 | ♦ Carcinogen |
| Hydrogen sulfide | 2,445 | 2,445 | — | — | 109,240 | |
| Ammonia | 1,731 | 1,731 | — | — | 8,739 | |
| Methanol | 1,563 | 1,563 | — | — | 152,936 | |
| Tetrachloroethylene | 390 | 390 | — | — | — | ♦ Carcinogen |
| Styrene | 387 | 387 | — | — | 11,481 | ♦ Carcinogen |
| Diethanolamine | 293 | 293 | — | — | 44,158 | |
| Cobalt compounds | 269 | 269 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 191 | 191 | — | — | — | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 129 | 129 | — | — | 207,556 | |
| Phenol | 101 | 101 | — | — | 111,425 | |
| Cumene | 75 | 75 | — | — | 87 | ♦ Carcinogen |
| Antimony compounds | 46 | 46 | — | — | — | |
| Zinc compounds | 20 | 20 | — | — | 0 | |
| Isoprene | 20 | 20 | — | — | — | ♦ Carcinogen |
| Copper compounds | 19 | 19 | — | — | — | |
| Mercury compounds | 11 | 11 | — | — | — | |
| Lead compounds | 11 | 11 | — | 0 | — | |
| Cresol (mixed isomers) | 7 | 7 | — | — | 48,132 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | 0 | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| 2,4-Dimethylphenol | — | — | — | — | 4,526 | |
| Phenanthrene | — | — | — | — | — | |
| Dioxin and dioxin-like compounds | — | — | — | — | 0 | ♦ Carcinogen |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Isoprene | — | — | — | — | — | ♦ Carcinogen |
| Hydrazine | — | — | — | — | 4,028 | ♦ Carcinogen |
| Sodium nitrite | — | — | — | — | — | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| Carbon disulfide | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Anthracene | — | — | — | — | — | |
| Propylene | 361,808 | 361,808 | — | — | — | |
| Ethylene | 54,073 | 54,073 | — | — | — | |
| Ammonia | 23,927 | 22,679 | 1,248 | — | 18,104 | |
| Benzene | 22,607 | 22,607 | — | — | 43,788 | ♦ Carcinogen |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 13,732 | 13,732 | — | — | — | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Xylene (mixed isomers) | 12,540 | 12,540 | — | — | 8,421 | |
| Toluene | 10,536 | 10,536 | — | — | 16,111 | |
| n-Hexane | 7,730 | 7,730 | — | — | 1,358 | |
| Acetonitrile | 6,906 | 6,906 | — | — | 28,377 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,255 | 6,255 | — | — | — | |
| Ethylbenzene | 4,602 | 4,602 | — | — | 49,786 | ♦ Carcinogen |
| 1,3-Butadiene | 4,015 | 4,015 | — | — | 1,810 | ♦ Carcinogen |
| Naphthalene | 3,774 | 3,774 | — | — | 9,052 | ♦ Carcinogen |
| Hydrogen sulfide | 2,828 | 2,828 | — | — | 91,538 | |
| Diethanolamine | 1,954 | 1,954 | — | — | 18,308 | |
| Methanol | 1,176 | 1,176 | — | — | 316,823 | |
| Styrene | 881 | 881 | — | — | 4,760 | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 690 | 690 | — | — | 173,922 | |
| Polycyclic aromatic compounds | 347 | 347 | — | — | — | ♦ Carcinogen |
| Cumene | 333 | 333 | — | — | 181 | ♦ Carcinogen |
| Cobalt compounds | 275 | 275 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 152 | 152 | — | — | — | ♦ Carcinogen |
| Cyclohexane | 152 | 152 | — | — | 5,431 | |
| Antimony compounds | 46 | 46 | — | — | — | |
| Phenol | 45 | 45 | — | — | 93,369 | |
| Lead compounds | 15 | 15 | — | — | — | |
| Cresol (mixed isomers) | 12 | 12 | — | — | 19,955 | |
| Mercury compounds | 1 | 1 | — | — | — | |
| Zinc compounds | 1 | 1 | — | — | 0 | |
| Copper compounds | 0 | 0 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sodium nitrite | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| 2,4-Dimethylphenol | — | — | — | — | 4,552 | |
| Acetonitrile | — | — | — | — | 70,553 | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Anthracene | — | — | — | — | — | |
| Hydrazine | — | — | — | — | 4,051 | ♦ Carcinogen |
| Carbon disulfide | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | 2,209 | |
| Propylene | 61,678 | 61,678 | — | — | — | |
| Ammonia | 24,216 | 22,685 | 1,531 | — | 18,207 | |
| Benzene | 22,135 | 22,135 | — | — | 44,004 | ♦ Carcinogen |
| Xylene (mixed isomers) | 20,504 | 20,504 | — | — | 20,938 | |
| Toluene | 13,262 | 13,262 | — | — | 16,202 | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 11,567 | 11,567 | — | — | — | |
| Naphthalene | 10,013 | 10,013 | — | — | 3,682 | ♦ Carcinogen |
| 1,3-Butadiene | 7,733 | 7,733 | — | — | 1,821 | ♦ Carcinogen |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 7,065 | 7,065 | — | — | — | |
| n-Hexane | 5,348 | 5,348 | — | — | 552 | |
| Ethylene | 5,181 | 5,181 | — | — | — | |
| Ethylbenzene | 4,596 | 4,596 | — | — | 50,070 | ♦ Carcinogen |
| Diethanolamine | 3,057 | 3,057 | — | — | 18,412 | |
| Hydrogen sulfide | 1,960 | 1,960 | — | — | 92,059 | |
| Styrene | 672 | 672 | — | — | 4,787 | ♦ Carcinogen |
| Methanol | 643 | 643 | — | — | 318,625 | |
| Cumene | 375 | 375 | — | — | 182 | ♦ Carcinogen |
| Cobalt compounds | 267 | 267 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 251 | 251 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 217 | 217 | — | — | — | ♦ Carcinogen |
| Phenol | 53 | 53 | — | — | 93,900 | |
| Antimony compounds | 50 | 50 | — | — | — | |
| Isoprene | 20 | 20 | — | — | — | ♦ Carcinogen |
| Lead compounds | 12 | 12 | — | 1 | 1,539 | |
| Cresol (mixed isomers) | 8 | 8 | — | — | 20,069 | |
| Zinc compounds | 1 | 1 | — | — | — | |
| Mercury compounds | 1 | 1 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | 0 | ♦ Carcinogen |
| Copper compounds | 0 | 0 | — | — | — | |
| 1,2,4-Trimethylbenzene | 0 | 0 | — | — | 174,911 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Anthracene | — | — | — | — | — | |
| Cyclohexane | — | — | — | — | 1,500 | |
| 2,4-Dimethylphenol | — | — | — | — | 3,414 | |
| Sodium nitrite | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| Acetonitrile | — | — | — | — | 52,919 | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Hydrazine | — | — | — | — | 2,750 | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | — | — | — | — | 0 | ♦ Carcinogen |
| Carbon disulfide | — | — | — | — | — | |
| 1,3-Butadiene | 59,543 | 59,543 | — | — | 500 | ♦ Carcinogen |
| Toluene | 52,025 | 51,857 | — | 168 | 30,044 | |
| Benzene | 27,487 | 27,318 | — | 169 | 81,636 | ♦ Carcinogen |
| Ammonia | 24,244 | 22,713 | 1,531 | — | 13,657 | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Propylene | 11,400 | 11,400 | — | — | — | |
| Xylene (mixed isomers) | 8,538 | 8,538 | — | — | 5,750 | |
| n-Hexane | 7,573 | 7,090 | — | 483 | 1,024 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,898 | 6,898 | — | — | — | |
| Naphthalene | 4,090 | 4,086 | — | 4 | 6,828 | ♦ Carcinogen |
| Ethylbenzene | 3,628 | 3,628 | — | — | 13,750 | ♦ Carcinogen |
| Hydrogen sulfide | 1,919 | 1,919 | — | — | — | |
| Ethylene | 1,880 | 1,880 | — | — | — | |
| Methanol | 1,820 | 1,820 | — | — | 87,499 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 985 | 985 | — | — | — | |
| 1,2,4-Trimethylbenzene | 861 | 861 | — | — | 324,342 | |
| Styrene | 451 | 451 | — | — | 8,877 | ♦ Carcinogen |
| Cumene | 402 | 308 | — | 94 | 137 | ♦ Carcinogen |
| Diethanolamine | 262 | 262 | — | — | 34,141 | |
| Tetrachloroethylene | 229 | 229 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 95 | 95 | — | — | — | ♦ Carcinogen |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Antimony compounds | 43 | 43 | — | — | — | |
| Isoprene | 20 | 20 | — | — | — | ♦ Carcinogen |
| Cresol (mixed isomers) | 19 | 19 | — | — | 13,625 | |
| Lead compounds | 10 | 10 | — | 0 | 1,169 | |
| Phenol | 9 | 9 | — | — | 174,121 | |
| Mercury compounds | 1 | 1 | — | — | — | |
| Zinc compounds | 1 | 1 | — | — | — | |
| Copper compounds | 0 | 0 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sodium nitrite | — | — | — | — | — | |
| 2,4-Dimethylphenol | — | — | — | — | 5,422 | |
| Carbon disulfide | — | — | — | — | — | |
| Anthracene | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Chlorine | — | — | — | — | — | |
| Cyclohexane | — | — | — | — | 2,468 | |
| Hydrazine | — | — | — | — | 4,525 | ♦ Carcinogen |
| Isoprene | — | — | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Ethylene | 174,724 | 174,724 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 152,624 | 152,624 | — | — | — | |
| Xylene (mixed isomers) | 46,201 | 46,201 | — | — | 24,942 | |
| n-Hexane | 37,192 | 37,192 | — | — | 1,627 | |
| 1,3-Butadiene | 32,228 | 32,228 | — | — | 823 | ♦ Carcinogen |
| Naphthalene | 23,298 | 23,298 | — | — | 4,113 | ♦ Carcinogen |
| Toluene | 23,173 | 23,173 | — | — | 18,098 | |
| Benzene | 21,956 | 21,956 | — | 0 | 129,653 | ♦ Carcinogen |
| Propylene | 21,161 | 21,161 | — | — | — | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Diethanolamine | 7,650 | 7,650 | — | — | 20,566 | |
| Ethylbenzene | 4,647 | 4,647 | — | — | 22,623 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 3,526 | 3,526 | — | — | — | ♦ Carcinogen |
| Hydrogen sulfide | 3,161 | 3,161 | — | — | 102,832 | |
| Acetonitrile | 3,053 | 3,053 | — | — | 31,878 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,855 | 1,855 | — | — | — | |
| 1,2,4-Trimethylbenzene | 1,427 | 1,427 | — | — | 515,097 | |
| Styrene | 1,329 | 1,329 | — | — | 5,347 | ♦ Carcinogen |
| Methanol | 1,121 | 1,121 | — | — | 143,965 | |
| Cumene | 463 | 463 | — | — | 217 | ♦ Carcinogen |
| Ammonia | 328 | 328 | — | — | 8,227 | |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 81 | 81 | — | — | — | ♦ Carcinogen |
| Phenol | 58 | 58 | — | — | 104,889 | |
| Antimony compounds | 52 | 52 | — | — | — | |
| Zinc compounds | 50 | 49 | — | 1 | — | |
| Cresol (mixed isomers) | 20 | 20 | — | — | 22,417 | |
| Lead compounds | 16 | 12 | — | 3 | 1,942 | |
| Mercury compounds | 1 | 1 | — | — | — | |
| Copper compounds | 0 | 0 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | 0 | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Benzene | 36,549 | 36,549 | — | — | 183,961 | ♦ Carcinogen |
| Ammonia | 25,158 | 22,706 | 2,452 | — | 21,253 | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Hydrogen sulfide | 1,860 | 1,860 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,855 | 1,855 | — | — | — | |
| Ethylene | 1,739 | 1,739 | — | — | — | |
| Styrene | 1,425 | 1,425 | — | — | 18,821 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 177 | 177 | — | — | — | ♦ Carcinogen |
| Cyclohexane | 152 | 152 | — | — | 6,376 | |
| Phenol | 83 | 83 | — | — | 369,177 | |
| Methanol | 12 | 12 | — | — | 371,928 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | 0 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Dioxin and dioxin-like compounds | — | — | — | — | 0 | ♦ Carcinogen |
| 2,4-Dimethylphenol | — | — | — | — | 5,327 | |
| Carbonyl sulfide | — | — | — | — | — | |
| Anthracene | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| Carbon disulfide | — | — | — | — | — | |
| Sodium nitrite | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| Ethylene | 378,955 | 378,955 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 152,624 | 152,624 | — | — | — | |
| Toluene | 48,812 | 48,812 | — | 0 | 46,877 | |
| Acetonitrile | 43,100 | 43,100 | — | — | 117,129 | |
| Naphthalene | 42,907 | 42,907 | — | — | 15,113 | ♦ Carcinogen |
| 1,3-Butadiene | 41,409 | 41,409 | — | — | 3,023 | ♦ Carcinogen |
| Benzene | 21,956 | 21,956 | — | 0 | 127,370 | ♦ Carcinogen |
| Propylene | 21,161 | 21,161 | — | — | — | |
| n-Hexane | 16,801 | 16,801 | — | — | 2,267 | |
| Hydrogen cyanide | 12,702 | 12,702 | — | — | — | |
| Xylene (mixed isomers) | 11,097 | 11,097 | — | — | 34,761 | |
| Ethylbenzene | 11,056 | 11,056 | — | — | 58,597 | ♦ Carcinogen |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,855 | 1,855 | — | — | — | |
| Styrene | 1,759 | 1,759 | — | — | 19,647 | ♦ Carcinogen |
| Hydrogen sulfide | 1,744 | 1,744 | — | — | — | |
| 1,2,4-Trimethylbenzene | 1,427 | 1,427 | — | — | 506,062 | |
| Ammonia | 1,403 | 1,403 | — | — | 30,227 | |
| Cumene | 463 | 463 | — | — | 213 | ♦ Carcinogen |
| Phenol | 236 | 236 | — | — | 385,392 | |
| Methanol | 234 | 234 | — | — | 156,782 | |
| Diethanolamine | 212 | 212 | — | — | 53,270 | |
| Polycyclic aromatic compounds | 159 | 159 | — | — | — | ♦ Carcinogen |
| Cyclohexane | 152 | 152 | — | — | 6,392 | |
| Cresol (mixed isomers) | 110 | 110 | — | — | 82,368 | |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Tetrachloroethylene | 81 | 81 | — | — | — | ♦ Carcinogen |
| Antimony compounds | 52 | 52 | — | — | — | |
| Zinc compounds | 49 | 49 | — | — | — | |
| Isoprene | 20 | 20 | — | — | — | ♦ Carcinogen |
| Lead compounds | 15 | 15 | — | — | 2,477 | |
| Mercury compounds | 11 | 11 | — | 0 | 1 | |
| Copper compounds | 0 | 0 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Dioxin and dioxin-like compounds | — | — | — | — | 1 | ♦ Carcinogen |
| Carbonyl sulfide | — | — | — | — | — | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Sodium nitrite | — | — | — | — | — | |
| Anthracene | — | — | — | — | — | |
| 2,4-Dimethylphenol | — | — | — | — | 5,780 | |
| Carbon disulfide | — | — | — | — | — | |
| Phenanthrene | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 152,549 | 152,549 | — | — | — | |
| Propylene | 143,521 | 143,521 | — | — | 212 | |
| Ethylene | 137,491 | 137,491 | — | — | 69 | |
| Naphthalene | 65,288 | 65,288 | — | — | 77,827 | ♦ Carcinogen |
| Toluene | 58,290 | 58,290 | — | 0 | 108,041 | |
| 1,3-Butadiene | 50,442 | 50,442 | — | — | 92,768 | ♦ Carcinogen |
| Benzene | 26,250 | 26,250 | — | 0 | 739,176 | ♦ Carcinogen |
| Xylene (mixed isomers) | 13,741 | 13,741 | — | — | 207,636 | |
| Ethylbenzene | 11,686 | 11,686 | — | — | 67,745 | ♦ Carcinogen |
| n-Hexane | 9,443 | 9,443 | — | — | 4,676 | |
| Hydrogen sulfide | 2,371 | 2,371 | — | — | — | |
| Hydrogen cyanide | 1,883 | 1,883 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,859 | 1,859 | — | — | — | |
| Ammonia | 1,854 | 1,854 | — | — | 34,577 | |
| Isoprene | 1,364 | 1,364 | — | — | — | ♦ Carcinogen |
| Diethanolamine | 1,306 | 1,306 | — | — | 57,799 | |
| Methanol | 874 | 874 | — | — | 546,749 | |
| Cumene | 463 | 463 | — | — | 231 | ♦ Carcinogen |
| Styrene | 428 | 428 | — | — | 19,109 | ♦ Carcinogen |
| 1,2,4-Trimethylbenzene | 296 | 296 | — | — | 793,629 | |
| Zinc compounds | 286 | 274 | — | 12 | — | |
| Cyclohexane | 130 | 130 | — | — | 6,936 | |
| Tetrachloroethylene | 108 | 108 | — | — | — | ♦ Carcinogen |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 75 | 75 | — | — | — | ♦ Carcinogen |
| Antimony compounds | 54 | 54 | — | — | — | |
| Cresol (mixed isomers) | 21 | 21 | — | — | 63,001 | |
| Lead compounds | 14 | 14 | — | — | 17,729 | |
| Phenol | 1 | 1 | — | — | 294,775 | |
| Mercury compounds | 1 | 1 | — | — | 0 | |
| Copper compounds | 0 | 0 | — | — | — | |
| Acetonitrile | 0 | 0 | — | — | 89,658 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Carbonyl sulfide | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Anthracene | — | — | — | — | — | |
| Sodium nitrite | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| n-Butyl alcohol | — | — | — | — | — | |
| Carbon disulfide | — | — | — | — | — | |
| Hydrazine | — | — | — | — | 13,580 | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | 28,540 | |
| Phenanthrene | — | — | — | — | — | |
| 2,4-Dimethylphenol | — | — | — | — | 6,173 | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 152,536 | 152,536 | — | — | — | |
| Xylene (mixed isomers) | 51,393 | 51,393 | — | — | 44,777 | |
| Benzene | 50,562 | 50,562 | — | — | 209,130 | ♦ Carcinogen |
| n-Hexane | 36,465 | 36,465 | — | — | 413,145 | |
| Toluene | 27,834 | 27,834 | — | — | 176,302 | |
| Ammonia | 25,922 | 22,977 | 2,945 | — | 24,691 | |
| Ethylbenzene | 10,538 | 10,538 | — | — | 72,067 | ♦ Carcinogen |
| Propylene | 8,177 | 8,177 | — | — | 61,314 | |
| Naphthalene | 7,877 | 7,877 | — | — | 12,346 | ♦ Carcinogen |
| 1,3-Butadiene | 5,166 | 5,166 | — | — | 478,722 | ♦ Carcinogen |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,903 | 1,903 | — | — | — | |
| Styrene | 1,900 | 1,900 | — | — | 22,107 | ♦ Carcinogen |
| Hydrogen cyanide | 1,883 | 1,883 | — | — | — | |
| Isoprene | 1,651 | 1,651 | — | — | — | ♦ Carcinogen |
| Hydrogen sulfide | 1,497 | 1,497 | — | — | — | |
| Ethylene | 1,333 | 1,333 | — | — | 12,972 | |
| Diethanolamine | 867 | 867 | — | — | 61,728 | |
| 1,2,4-Trimethylbenzene | 298 | 298 | — | — | 877,419 | |
| Polycyclic aromatic compounds | 254 | 254 | — | — | — | ♦ Carcinogen |
| Zinc compounds | 197 | 1 | — | 196 | — | |
| Tetrachloroethylene | 108 | 108 | — | — | — | ♦ Carcinogen |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Antimony compounds | 51 | 51 | — | — | — | |
| Mercury compounds | 45 | 45 | — | — | 1 | |
| Lead compounds | 13 | 12 | — | 1 | 490 | |
| Methanol | 9 | 9 | — | — | 432,096 | |
| Cresol (mixed isomers) | 2 | 2 | — | — | 67,284 | |
| Phenol | 1 | 1 | — | — | 314,814 | |
| Copper compounds | 0 | 0 | — | — | — | |
| Acetonitrile | 0 | 0 | — | — | 95,747 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | 0 | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Phenanthrene | — | — | — | — | — | |
| Dioxin and dioxin-like compounds | — | — | — | — | 0 | ♦ Carcinogen |
| Sodium nitrite | — | — | — | — | — | |
| Carbon disulfide | — | — | — | — | — | |
| Benzo[g,h,i]perylene | — | — | — | — | — | |
| Carbonyl sulfide | — | — | — | — | — | |
| Molybdenum trioxide | — | — | — | — | — | ♦ Carcinogen |
| Cyclohexane | — | — | — | — | 40,550 | |
| Anthracene | — | — | — | — | — | |
| Hydrazine | — | — | — | — | — | ♦ Carcinogen |
| 2,4-Dimethylphenol | — | — | — | — | 6,039 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Chlorine | — | — | — | — | — | |
| n-Butyl alcohol | — | — | — | — | — | |
| Propylene | 158,320 | 158,320 | — | — | 420 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 152,274 | 152,274 | — | — | — | |
| Ethylene | 103,846 | 103,846 | — | — | 185 | |
| Naphthalene | 68,237 | 68,237 | — | — | 158,050 | ♦ Carcinogen |
| Benzene | 35,321 | 35,321 | — | — | 198,204 | ♦ Carcinogen |
| 1,3-Butadiene | 28,596 | 28,596 | — | — | 184,503 | ♦ Carcinogen |
| Toluene | 28,142 | 28,142 | — | — | 239,651 | |
| n-Hexane | 14,327 | 14,327 | — | — | 5,035 | |
| Chlorodifluoromethane (HCFC-22) | 14,260 | 14,260 | — | — | — | |
| Xylene (mixed isomers) | 11,728 | 11,728 | — | — | 428,904 | |
| Hydrogen sulfide | 10,940 | 10,940 | — | — | 395,750 | |
| Acetonitrile | 8,959 | 8,959 | — | — | 122,683 | |
| Ethylbenzene | 5,682 | 5,682 | — | — | 111,593 | ♦ Carcinogen |
| Styrene | 2,006 | 2,006 | — | — | 20,579 | ♦ Carcinogen |
| Ammonia | 1,933 | 1,933 | — | — | 34,921 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,900 | 1,900 | — | — | — | |
| Hydrogen cyanide | 1,883 | 1,883 | — | — | — | |
| Methanol | 887 | 887 | — | — | 554,050 | |
| 1,2,4-Trimethylbenzene | 553 | 553 | — | — | 869,924 | |
| Diethanolamine | 507 | 507 | — | — | 60,395 | |
| Polycyclic aromatic compounds | 325 | 325 | — | — | — | ♦ Carcinogen |
| Phenol | 220 | 220 | — | — | 403,665 | |
| Cresol (mixed isomers) | 92 | 92 | — | — | 86,274 | |
| Cobalt compounds | 89 | 89 | — | — | — | ♦ Carcinogen |
| Antimony compounds | 52 | 52 | — | — | — | |
| Zinc compounds | 51 | 49 | — | 2 | — | |
| Mercury compounds | 45 | 45 | — | — | 1 | |
| Tetrachloroethylene | 27 | 27 | — | — | — | ♦ Carcinogen |
| Isoprene | 20 | 20 | — | — | — | ♦ Carcinogen |
| Lead compounds | 18 | 12 | — | 6 | 1,533 | |
| Copper compounds | 0 | 0 | — | — | — |
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 |
|---|---|---|---|---|
| Phenanthrene | — | — | — | 8 |
| Naphthalene | — | 13,885,842 | — | 16,046 |
| Acetonitrile | — | — | — | 33,943 |
| Cresol (mixed isomers) | — | — | — | 23,814 |
| Toluene | — | 130,542 | — | 676,343 |
| Diethanolamine | — | — | — | 21,848 |
| Cyclohexane | — | 3,028,763 | — | 9,695 |
| Ethylbenzene | — | 18,926 | — | 28,759 |
| Xylene (mixed isomers) | — | 306,215 | — | 322,572 |
| Anthracene | — | — | — | 2 |
| Dioxin and dioxin-like compounds | — | 0 | — | 0 |
| Hydrazine | — | — | — | 4,807 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 387 |
| 1,3-Butadiene | — | — | — | 72,150 |
| 1,2,4-Trimethylbenzene | — | 11,524,414 | — | 419,502 |
| Phenol | — | — | — | 410,100 |
| n-Hexane | — | — | — | 811,585 |
| Styrene | — | — | — | 6,203 |
| Methanol | — | — | — | 309,432 |
| Propylene | — | — | — | 457,055 |
| Benzene | — | 179,751 | — | 1,023,120 |
| 2,4-Dimethylphenol | — | — | — | 4,416 |
| Ethylene | — | — | — | 183,058 |
| Ammonia | — | — | — | 12,794,752 |
| Hydrogen sulfide | — | — | — | 10,788,706 |
| Cumene | — | — | — | 177 |
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 |
|---|---|---|---|---|---|
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Hydrogen sulfide | — | — | — | 109,240 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Hydrazine | — | — | — | 4,807 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Naphthalene | — | — | — | 4,370 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Benzene | — | — | — | 105,538 |
|
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
|
Benzene | — | 40 | — | — |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Cumene | — | — | — | 177 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Cyclohexane | — | — | — | 5,299 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Diethanolamine | — | — | — | 44,158 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Ethylbenzene | — | — | — | 48,574 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Methanol | — | — | — | 309,107 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Toluene | — | — | — | 38,859 |
|
CHEMICAL WASTE MANAGEMENT, INC.
EMELLE, AL
|
Xylene (mixed isomers) | 0 | — | — | — |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
2,4-Dimethylphenol | — | — | — | 4,416 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
n-Hexane | — | — | — | 1,325 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Cresol (mixed isomers) | — | — | — | 48,132 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
1,3-Butadiene | — | — | — | 1,766 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
1,2,4-Trimethylbenzene | — | — | — | 419,502 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Acetonitrile | — | — | — | 68,445 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Ammonia | — | — | — | 17,663 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Phenol | — | — | — | 225,206 |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Styrene | — | — | — | 11,481 |
|
CHEMICAL WASTE MANAGEMENT, INC.
EMELLE, AL
|
Toluene | 0 | — | — | — |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Xylene (mixed isomers) | — | — | — | 20,313 |
|
CHEMICAL WASTE MANAGEMENT, INC.
EMELLE, AL
|
Zinc compounds | 0 | — | — | — |
|
SHELL NORCO CHEMICAL PLANT - WEST SITE
NORCO, LA
|
Dioxin and dioxin-like compounds | — | — | — | 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 | — | — | — | Open |
| cwa | Effluent Violations - Unapproved Bypass | Jul 9, 2024 | Sep 3, 2025 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Nov 4, 2023 | Sep 3, 2025 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Nov 27, 2022 | Sep 3, 2025 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | May 31, 2022 | Sep 3, 2025 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Feb 1, 2007 | Jun 28, 2011 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jun 24, 2006 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Industrial Spill | Jun 24, 2006 | Jun 28, 2011 | Resolved |
| cwa | WW SSO - Discharge to Waters | Apr 16, 2006 | Jun 28, 2011 | Resolved |
| cwa | WW SSO - Improper Operation and Maintenance | Apr 1, 2006 | Jun 28, 2011 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Feb 19, 2006 | Jun 28, 2011 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Feb 13, 2006 | Jun 28, 2011 | Resolved |
| cwa | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | Dec 31, 2005 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Industrial Spill | Aug 1, 2005 | Jun 28, 2011 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 4, 2005 | — | Open |
| cwa | WW SSO - Improper Operation and Maintenance | May 20, 2005 | Jun 28, 2011 | Resolved |
| cwa | WW SSO - Discharge to Waters | May 20, 2005 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Feb 27, 2005 | Jun 28, 2011 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Feb 27, 2005 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Feb 2, 2005 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Jan 31, 2005 | Jun 28, 2011 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Dec 28, 2004 | Jun 28, 2011 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Oct 18, 2004 | Jun 28, 2011 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Oct 15, 2004 | Jun 28, 2011 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Aug 8, 2004 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Aug 8, 2004 | Jun 28, 2011 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Mar 31, 2004 | Nov 1, 2007 | Resolved |
| cwa | Monitoring Violations - Analysis not Conducted | Dec 5, 2003 | Jun 28, 2011 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Dec 9, 2002 | Jun 28, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Nov 12, 2002 | Nov 14, 2002 | Resolved |
| cwa | Management Practice Violations - Failure to Develop Adequate SPCC Plan | Jun 12, 2001 | Jun 28, 2011 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jun 12, 2001 | Jun 28, 2011 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Jun 9, 2001 | Jun 28, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Dec 7, 2000 | Dec 8, 2000 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Nov 30, 2000 | Jun 28, 2011 | Resolved |
| cwa | Management Practice Violations - Failure to Develop Adequate SPCC Plan | Nov 30, 2000 | Jun 28, 2011 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Oct 31, 2000 | Jun 28, 2011 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 12, 2000 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 12, 2000 | Dec 12, 2007 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jul 20, 1999 | Jul 20, 1999 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jul 19, 1999 | Dec 12, 2007 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jul 19, 1999 | Dec 12, 2007 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jul 19, 1999 | Dec 12, 2007 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Apr 24, 1999 | Dec 12, 2007 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Apr 24, 1999 | Dec 12, 2007 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Oct 7, 1998 | May 13, 2013 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jan 20, 1994 | Feb 1, 1994 | Resolved |
| rcra | Land Disposal Restrictions: General | Nov 15, 1990 | Apr 18, 1996 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Nov 15, 1990 | Apr 18, 1996 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Nov 15, 1990 | Apr 18, 1996 | 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 | 6.72 kg/d | 2.63 | +155% | Jan 2026 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 11.12 kg/d | 5.90 | +88% | Jan 2026 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 5.13 kg/d | 2.63 | +95% | Dec 2025 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 13.03 kg/d | 5.90 | +121% | Dec 2025 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 8.40 kg/d | 5.90 | +99,999% | Nov 2025 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.03 occur/d | 0.00 | +99,999% | Sep 2025 | Open |
| pH range excursions, monthly total accum | DMR, Limited - Numeric Violation | 0.35 d | 0.31 | +99,999% | Sep 2025 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 8.44 kg/d | 5.90 | +43% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 1,901.31 kg/d | 1,133.18 | +99,999% | Nov 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 2,007.36 kg/d | 1,625.77 | +23% | Aug 2024 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.20 occur/d | 0.00 | +2,147,483,650% | Jul 2024 | Open |
| pH range excursions, monthly total accum | DMR, Limited - Numeric Violation | 1.70 d | 0.31 | +450% | Jul 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 2,040.23 kg/d | 1,625.77 | +99,999% | Jun 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 2,353.22 kg/d | 1,133.18 | +99,999% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 2,132.03 kg/d | 1,625.77 | +99,999% | Apr 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 2,057.53 kg/d | 1,133.18 | +99,999% | Mar 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 1,830.03 kg/d | 1,133.18 | +99,999% | Nov 2023 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.07 occur/d | 0.00 | +2,147,483,650% | Nov 2023 | Open |
| pH range excursions, monthly total accum | DMR, Limited - Numeric Violation | 0.37 d | 0.31 | +99,999% | Oct 2023 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.07 occur/d | 0.00 | +2,147,483,650% | Oct 2023 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 47.62 kg/d | 5.90 | +707% | May 2023 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 6.72 kg/d | 2.63 | +155% | May 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 1,283.32 kg/d | 1,133.18 | +13% | Feb 2023 | Open |
| Oil & Grease | DMR, Limited - Numeric Violation | 660.98 kg/d | 365.92 | +99,999% | Jan 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 363.79 kg/d | 286.93 | +27% | Dec 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,997.33 kg/d | 1,625.77 | +23% | Dec 2022 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 7.49 kg/d | 5.90 | +27% | Dec 2022 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 4.90 kg/d | 2.63 | +99,999% | Sep 2022 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 17.30 kg/d | 5.90 | +99,999% | Sep 2022 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.03 occur/d | 0.00 | +99,999% | Mar 2022 | Open |
| Hexachlorobenzene | DMR, Limited - Numeric Violation | 0.41 kg/d | 0.20 | +109% | Dec 2021 | Open |
| pH range excursions, monthly total accum | DMR, Limited - Overdue | 0.36 d | 0.31 | +17% | Oct 2021 | Resolved |
| pH range excursions, monthly total accum | DMR, Limited - Numeric Violation | 0.36 d | 0.31 | +17% | Oct 2021 | Open |
| pH range excursions, > 60 minutes | DMR, Limited - Numeric Violation | 0.07 occur/d | 0.00 | +2,147,483,650% | Sep 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 1,303.43 kg/d | 1,133.18 | +99,999% | Mar 2021 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 11.12 kg/d | 9.22 | +21% | Jun 2020 | Open |
| Carbon, tot organic [TOC] | DMR, Limited - Numeric Violation | 54.80 mg/L | 50.00 | +10% | Sep 2019 | Open |
| pH range excursions, monthly total accum | DMR, Limited - Numeric Violation | 0.40 d | 0.31 | +28% | Apr 2019 | Open |
| Sulfide, total [as S] | DMR, Limited - Numeric Violation | 20.97 kg/d | 9.22 | +128% | Jul 2018 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 4.31 mg/L | 2.61 | +65% | Nov 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 06-2000-1233
Administrative - Formal
· Case 06-1997-0795
State CWA Non Penalty AO
Clean Water Act
· Case LA-WECN2300770 · Sep 3, 2025
Notice of Noncompliance Issued
Clean Air Act
· Case 3604288502 · Feb 26, 2025
Judicial
· Case HQ-2019-0001 · Feb 16, 2019
$350,000
Administrative - Formal
· Case 06-2016-3353 · May 24, 2016
$165,750
Administrative - Formal
· Case 06-2016-3352 · May 24, 2016
$91,800
Administrative - Formal
· Case EF-2015-8069 · Jan 16, 2015
$900,000
State Administrative Order of Consent
Clean Water Act
· Case LA-SAAWE070007A · Jun 28, 2011
$215,662
Administrative - Formal
· Case HQ-2008-5044 · Jan 30, 2008
State Administrative Order of Consent
Clean Water Act
· Case LA-N00018197 · Dec 12, 2007
$90,000
State Administrative Order of Consent
Clean Water Act
· Case LA-N00016545 · May 3, 2007
Administrative - Formal
· Case 06-2006-2904 · Sep 19, 2006
$5,600
State CWA Non Penalty AO
Clean Water Act
· Case LA-N00009263 · May 20, 2005
State CWA Non Penalty AO
Clean Water Act
· Case LA-N00000435 · Nov 23, 2004
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-LAD008186579-388 · Sep 29, 2003
Administrative - Formal
· Case 06-2002-3301 · Mar 14, 2003
$52,800
State CWA Non Penalty AO
Clean Water Act
· Case LA-N00003968 · Sep 24, 2001
Judicial
· Case 06-2000-1232 · Aug 20, 2001
$9,500,000
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-LAD008186579-668 · Apr 22, 2001
Other facilities in ST. CHARLES PARISH County, LA
BRIDGELINE HOLDINGS LP
STATEWIDE, LA
TRI-C RESOURCES, LLC
BOUTTE, LA
ENTERGY LOUISIANA LLC - J WAYNE LEONARD POWER STATION
MONTZ, LA
· Utilities
ST CHARLES PAR COUNCIL-DEST
DESTREHAN, LA
DESTREHAN POTW HAHNVILLE POTW/ LULING POND
HAHNVILLE, LA
INTERTEK USA
SAINT ROSE, LA
· Administrative and Support and Waste Management