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

NORCO CHEMICAL PLANT - WEST SITE

Quick Summary

  • •Released 45,877 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 $10,000 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
16122 RIVER RD
NORCO, LA 70079
View on map ↗
County
ST. CHARLES County
Industry
Manufacturing
NAICS (North American Industry Classification)
325199
Inspections
5 · last Oct 23, 2025
Total Penalties
$10,000 · last Dec 30, 2021
Registry ID
110024471668

How This Compares

#110 of 419 TRI reporters in LA
#1,775 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
6
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) -78% overall
Year Total Releases (lbs) vs Prior Year
2015 82,548 —
2016 68,343 -17%
2017 45,877 -33%
2018 39,055 -15%
2019 1,389 -96%
2020 21,139 +1422%
2021 16,118 -24%
2022 21,171 +31%
2023 17,391 -18%
2024 18,569 +7%

2024

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 13 ♦ Carcinogen
Benzene 3,667 3,667 — — — ♦ Carcinogen
Toluene 2,559 2,559 — — —
Xylene (mixed isomers) 2,458 2,458 — — —
Ethylbenzene 2,019 2,019 — — — ♦ Carcinogen
1,3-Butadiene 1,792 1,792 — — — ♦ Carcinogen
Hydrogen sulfide 1,553 1,553 — — —
1,2,4-Trimethylbenzene 1,194 1,194 — — —
Styrene 1,190 1,190 — — — ♦ Carcinogen
Glycidol 721 721 — — — ♦ Carcinogen
Ammonia 720 129 590 — —
Acetonitrile 228 228 — — —
Methanol 206 206 — — —
n-Butyl alcohol 122 122 — — —
Naphthalene 77 77 — — — ♦ Carcinogen
Hydrazine 31 31 — — — ♦ Carcinogen
Methyl isobutyl ketone 20 20 — — — ♦ Carcinogen
Phenol 10 10 — — —
Lead compounds 2 — 2 — 27
Diethanolamine 0 0 — — —
Cresol (mixed isomers) 0 0 — — —

2023

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 17 ♦ Carcinogen
Benzene 3,498 3,498 — — — ♦ Carcinogen
Toluene 2,441 2,441 — — —
Xylene (mixed isomers) 2,346 2,346 — — —
Ethylbenzene 1,927 1,927 — — — ♦ Carcinogen
1,3-Butadiene 1,709 1,709 — — — ♦ Carcinogen
Hydrogen sulfide 1,482 1,482 — — —
1,2,4-Trimethylbenzene 1,197 1,197 — — —
Styrene 1,135 1,135 — — — ♦ Carcinogen
Glycidol 721 721 — — — ♦ Carcinogen
Ammonia 272 123 149 — —
Acetonitrile 218 218 — — —
Methanol 197 197 — — —
n-Butyl alcohol 117 117 — — —
Naphthalene 73 73 — — — ♦ Carcinogen
Hydrazine 29 29 — — — ♦ Carcinogen
Methyl isobutyl ketone 19 19 — — — ♦ Carcinogen
Phenol 9 9 — — —
Lead compounds 2 — 2 — 40
Diethanolamine 0 0 — — —
Cresol (mixed isomers) 0 0 — — —

2022

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 10 ♦ Carcinogen
Benzene 4,291 4,291 — — — ♦ Carcinogen
Toluene 3,025 3,025 — — —
Xylene (mixed isomers) 2,905 2,905 — — —
Ethylbenzene 2,411 2,411 — — — ♦ Carcinogen
1,3-Butadiene 2,131 2,131 — — — ♦ Carcinogen
Hydrogen sulfide 1,897 1,897 — — —
Styrene 1,421 1,421 — — — ♦ Carcinogen
1,2,4-Trimethylbenzene 1,194 1,194 — — —
Glycidol 720 720 — — — ♦ Carcinogen
Ammonia 361 165 197 — —
Acetonitrile 271 271 — — —
Methanol 240 240 — — —
n-Butyl alcohol 143 143 — — —
Naphthalene 90 90 — — — ♦ Carcinogen
Hydrazine 37 37 — — — ♦ Carcinogen
Methyl isobutyl ketone 21 21 — — — ♦ Carcinogen
Phenol 9 9 — — —
Lead compounds 2 — 2 — 37
Cresol (mixed isomers) 2 2 — — —
Diethanolamine 0 0 — — —

2021

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 24 ♦ Carcinogen
Benzene 3,258 3,258 — — — ♦ Carcinogen
Toluene 2,263 2,263 — — —
Xylene (mixed isomers) 2,148 2,148 — — —
Ethylbenzene 1,785 1,785 — — — ♦ Carcinogen
1,3-Butadiene 1,582 1,582 — — 13 ♦ Carcinogen
Hydrogen sulfide 1,578 1,578 — — —
1,2,4-Trimethylbenzene 1,194 1,194 — — —
Styrene 1,060 1,060 — — — ♦ Carcinogen
Glycidol 544 544 — — — ♦ Carcinogen
Ammonia 245 104 142 — —
Acetonitrile 201 201 — — —
n-Butyl alcohol 106 106 — — —
Naphthalene 69 69 — — — ♦ Carcinogen
Hydrazine 28 28 — — — ♦ Carcinogen
Methanol 26 26 — — —
Methyl isobutyl ketone 15 15 — — — ♦ Carcinogen
Phenol 11 11 — — —
Cresol (mixed isomers) 3 3 — — —
Lead compounds 2 — 2 — 26
Diethanolamine 0 0 — — —

2020

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 1 ♦ Carcinogen
Benzene 4,282 4,282 — — — ♦ Carcinogen
Toluene 3,041 3,041 — — —
Xylene (mixed isomers) 2,925 2,925 — — —
Ethylbenzene 2,474 2,474 — — — ♦ Carcinogen
1,3-Butadiene 2,154 2,154 — — 5 ♦ Carcinogen
Hydrogen sulfide 2,068 2,068 — — —
Styrene 1,449 1,449 — — — ♦ Carcinogen
1,2,4-Trimethylbenzene 1,197 1,197 — — —
Glycidol 522 522 — — — ♦ Carcinogen
Acetonitrile 274 274 — — —
Methanol 265 265 — — —
Ammonia 189 161 29 — —
n-Butyl alcohol 138 138 — — —
Naphthalene 87 87 — — — ♦ Carcinogen
Hydrazine 39 39 — — — ♦ Carcinogen
Methyl isobutyl ketone 15 15 — — — ♦ Carcinogen
Phenol 14 14 — — —
Cresol (mixed isomers) 3 3 — — —
Lead compounds 3 — 3 — 37
Diethanolamine 0 0 — — —

2019

Chemical Total (lbs) Air Water Land Off-Site
Styrene 1,387 1,387 — — — ♦ Carcinogen
Lead compounds 2 — 2 — 32

2018

Chemical Total (lbs) Air Water Land Off-Site
Mercury compounds — — — — 1
Dioxin and dioxin-like compounds — — — — 13 ♦ Carcinogen
Glycidol 14,805 14,805 — — — ♦ Carcinogen
Styrene 9,757 9,757 — — — ♦ Carcinogen
Ammonia 2,807 2,317 491 — —
n-Butyl alcohol 2,673 2,673 — — —
Hydrogen sulfide 1,804 1,804 — — —
Methanol 1,339 1,339 — — 9
1,3-Butadiene 1,334 1,334 — — 261 ♦ Carcinogen
1,2,4-Trimethylbenzene 1,327 1,327 — — —
Naphthalene 939 939 — — — ♦ Carcinogen
Acetonitrile 722 722 — — —
Toluene 551 551 — — —
Benzene 464 464 — — — ♦ Carcinogen
Xylene (mixed isomers) 224 224 — — —
Ethylbenzene 156 156 — — — ♦ Carcinogen
Cresol (mixed isomers) 90 90 — — —
Hydrazine 40 40 — — — ♦ Carcinogen
Phenol 18 18 — — —
Diethanolamine 4 4 — — —
Lead compounds 2 — 2 — 30

2017

Chemical Total (lbs) Air Water Land Off-Site
Glycidol 14,766 14,766 — — — ♦ Carcinogen
Styrene 10,131 10,131 — — — ♦ Carcinogen
Ammonia 6,627 2,746 3,881 — —
n-Butyl alcohol 2,908 2,908 — — —
1,3-Butadiene 2,747 2,747 — — 937 ♦ Carcinogen
Hydrogen sulfide 1,935 1,935 — — —
1,2,4-Trimethylbenzene 1,398 1,398 — — —
Methanol 1,396 1,396 — — 31
Naphthalene 990 990 — — — ♦ Carcinogen
Acetonitrile 745 745 — — —
Benzene 671 671 — — — ♦ Carcinogen
Methyl isobutyl ketone 591 591 — — — ♦ Carcinogen
Toluene 389 389 — — —
Xylene (mixed isomers) 274 274 — — —
Ethylbenzene 164 164 — — — ♦ Carcinogen
Cresol (mixed isomers) 79 79 — — —
Hydrazine 41 41 — — — ♦ Carcinogen
Phenol 16 16 — — —
Diethanolamine 5 5 — — —
Lead compounds 3 — 3 — 34
Mercury compounds 2 2 — — 1
Dioxin and dioxin-like compounds 0 0 — — 20 ♦ Carcinogen

2016

Chemical Total (lbs) Air Water Land Off-Site
Allyl chloride — — — — —
Glycidol 21,540 21,540 — — — ♦ Carcinogen
Ammonia 13,745 3,535 10,210 — —
Styrene 10,900 10,900 — — — ♦ Carcinogen
n-Butyl alcohol 4,778 4,778 — — —
Epichlorohydrin 3,484 3,484 — — — ♦ Carcinogen
1,3-Butadiene 2,992 2,992 — — 1,195 ♦ Carcinogen
Hydrogen sulfide 2,280 2,280 — — —
1,2,4-Trimethylbenzene 1,592 1,592 — — —
Methanol 1,513 1,513 — — 39
Naphthalene 1,082 1,082 — — — ♦ Carcinogen
Methyl isobutyl ketone 1,014 1,014 — — — ♦ Carcinogen
Benzene 891 891 — — — ♦ Carcinogen
Acetonitrile 804 804 — — —
Toluene 799 799 — — —
Xylene (mixed isomers) 444 444 — — —
Cresol (mixed isomers) 212 212 — — —
Ethylbenzene 187 187 — — — ♦ Carcinogen
Hydrazine 43 43 — — — ♦ Carcinogen
Phenol 31 31 — — —
Diethanolamine 4 4 — — —
Lead compounds 4 — 4 — 74
Mercury compounds 3 3 — — 2
Dioxin and dioxin-like compounds 0 0 — — 38 ♦ Carcinogen

2015

Chemical Total (lbs) Air Water Land Off-Site
Lead compounds — — — — 28
Allyl chloride — — — — —
Glycidol 42,362 42,362 — — — ♦ Carcinogen
Styrene 10,472 10,472 — — — ♦ Carcinogen
Ammonia 5,900 3,725 2,175 — —
n-Butyl alcohol 5,026 5,026 — — —
Epichlorohydrin 4,924 4,924 — — — ♦ Carcinogen
1,3-Butadiene 2,817 2,817 — — 1,140 ♦ Carcinogen
Hydrogen sulfide 2,228 2,228 — — —
1,2,4-Trimethylbenzene 1,624 1,624 — — —
Methanol 1,490 1,490 — — 37
Naphthalene 1,115 1,115 — — — ♦ Carcinogen
Methyl isobutyl ketone 1,032 1,032 — — — ♦ Carcinogen
Toluene 901 901 — — —
Benzene 890 890 — — — ♦ Carcinogen
Acetonitrile 778 778 — — —
Xylene (mixed isomers) 459 459 — — —
Cresol (mixed isomers) 251 251 — — —
Ethylbenzene 190 190 — — — ♦ Carcinogen
Hydrazine 38 38 — — — ♦ Carcinogen
Phenol 37 37 — — —
Mercury compounds 10 10 — — 0
Diethanolamine 4 4 — — —
Dioxin and dioxin-like compounds 0 0 — — 21 ♦ 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
Diethanolamine — — — 66,006
Ethylbenzene — — — 72,607
Benzene — — — 157,755
Hydrazine — — — 14,521
Ammonia — — — 26,402
Toluene — — — 58,086
Naphthalene — — — 13,201
1,3-Butadiene — — — 2,640
1,2,4-Trimethylbenzene — — — 627,059
Styrene — — — 17,162
Dioxin and dioxin-like compounds — — — 0
Acetonitrile — — — 102,310
Methanol — — — 462,043
Xylene (mixed isomers) — — — 30,363
Phenol — — — 336,631
Hydrogen sulfide — — — 316,830
Cresol (mixed isomers) — — — 71,951

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
WASTE MANAGEMENT OF LOUISIANA LLC - BATON ROUGE
WALKER, LA
Lead compounds 27 — — —
WASTE MANAGEMENT OF LOUISIANA LLC - BATON ROUGE
WALKER, LA
Mercury compounds 1 — — —
WASTE MANAGEMENT OF LOUISIANA LLC - BATON ROUGE
WALKER, LA
Dioxin and dioxin-like compounds 13 — — —

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
cwa Permit Violations - Violation Specified in Comment Jan 26, 2004 Nov 1, 2007 Resolved
cwa Monitoring Violations - Analysis not Conducted Dec 1, 2003 Nov 1, 2007 Resolved
cwa Monitoring Violations - Invalid/Unrepresentative Sample Jul 22, 2002 Nov 1, 2007 Resolved
cwa Permit Violations - Violation Specified in Comment Jul 31, 2001 Nov 1, 2007 Resolved
cwa Permit Violations - Violation Specified in Comment Aug 3, 2000 Nov 1, 2007 Resolved
cwa Monitoring Violations - Invalid/Unrepresentative Sample Aug 3, 2000 Nov 1, 2007 Resolved
cwa Permit Violations - Discharge Without a Valid Permit Aug 12, 1999 Nov 1, 2007 Resolved
cwa Reporting Violations - Improper/ Incorrect Reporting Apr 30, 1999 Nov 1, 2007 Resolved
cwa Reporting Violations - Improper/ Incorrect Reporting Jul 31, 1998 Nov 1, 2007 Resolved
cwa Permit Violations - Violation Specified in Comment Feb 28, 1997 Nov 1, 2007 Resolved
cwa Monitoring Violations - Analysis not Conducted Nov 30, 1996 Nov 1, 2007 Resolved
cwa Permit Violations - Violation Specified in Comment Aug 31, 1995 — Open
cwa Schedule Event unachieved and not reported Oct 1, 1991 Dec 5, 1991 Resolved
cwa Schedule Event achieved late but reported Oct 1, 1991 — Open
cwa Monitoring Violations - Failure to Monitor for Toxicity Requirements Jan 29, 1990 — Open
cwa Schedule Event unachieved and not reported Jan 1, 1990 Dec 5, 1991 Resolved
cwa Schedule Event achieved late but reported Jan 1, 1990 — Open
cwa Permit Violations - Violation Specified in Comment Sep 29, 1989 — Open
cwa Monitoring Violations - Failure to Monitor for Toxicity Requirements Sep 16, 1988 — Open

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant Violation Reported Limit Exceedance Period Status
Solids, total suspended DMR, Limited - Numeric Violation 196.13 kg/d 92.16 +113% Jan 2026 Open
Solids, total suspended DMR, Limited - Numeric Violation 564.28 kg/d 279.21 +102% Jan 2026 Open
Sulfide, total [as S] DMR, Limited - Numeric Violation 3.18 kg/d 2.72 +99,999% May 2025 Open
Solids, total suspended DMR, Limited - Numeric Violation 96.75 kg/d 92.16 +99,999% Oct 2024 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 1,005.84 kg/d 279.21 +99,999% Sep 2024 Open
Solids, total suspended DMR, Limited - Numeric Violation 183.46 kg/d 92.16 +99,999% Sep 2024 Resolved
Hexachlorobutadiene DMR, Limited - Numeric Violation 0.33 kg/d 0.04 +711% Dec 2021 Open
Hexachlorobenzene DMR, Limited - Numeric Violation 0.17 kg/d 0.05 +208% Dec 2021 Open
Benzo[a]anthracene DMR, Limited - Numeric Violation 0.17 kg/d 0.11 +48% Dec 2021 Open
Chrysene DMR, Limited - Numeric Violation 0.17 kg/d 0.11 +48% Dec 2021 Open
Hexachlorobenzene DMR, Limited - Numeric Violation 0.17 kg/d 0.03 +517% Dec 2021 Open
Hexachlorobutadiene DMR, Limited - Numeric Violation 0.33 kg/d 0.10 +248% Dec 2021 Open
Benzo[a]anthracene DMR, Limited - Numeric Violation 0.17 kg/d 0.04 +311% Dec 2021 Open
Benzo[k]fluoranthene DMR, Limited - Numeric Violation 0.17 kg/d 0.11 +48% Dec 2021 Open
Benzo[a]pyrene DMR, Limited - Numeric Violation 0.17 kg/d 0.12 +42% Dec 2021 Open
Benzo[k]fluoranthene DMR, Limited - Numeric Violation 0.17 kg/d 0.04 +311% Dec 2021 Open
Benzo[a]pyrene DMR, Limited - Numeric Violation 0.17 kg/d 0.05 +270% Dec 2021 Open
Chrysene DMR, Limited - Numeric Violation 0.17 kg/d 0.04 +311% Dec 2021 Open
Solids, total suspended DMR, Limited - Numeric Violation 294.82 kg/d 279.21 +99,999% Aug 2021 Open
Zinc, total [as Zn] DMR, Limited - Numeric Violation 53.00 kg/d 36.96 +43% Mar 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.

State Administrative Order of Consent
Clean Water Act · Case LA-N00016542 · May 3, 2007
$999,999
State CWA Non Penalty AO
Clean Water Act · Case LA-N00003938 · Nov 27, 2001
Judicial
· Case 06-1991-0011 · Mar 27, 1996
$1,000,000
CWA 309A AO For Compliance
Clean Water Act · Case 06-1989-N223 · Sep 29, 1989
Judicial
· Case 06-1983-0010 · Jun 24, 1985
$50,000

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