EmissionsLookup
TRI Reporter Clean Air Act RCRA

DUPONT PONTCHARTRAIN SITE

Quick Summary

  • •Released 1,060,466 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
  • •Assessed $480,000 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
586 HIGHWAY 44
LA PLACE, LA 70068
View on map ↗
County
ST. JOHN THE BAPTIST PARISH County
Industry
Manufacturing
NAICS (North American Industry Classification)
325110
Inspections
4 · last Oct 6, 2025
Total Penalties
$480,000 · last Sep 25, 2024
Registry ID
110000597131

How This Compares

#27 of 419 TRI reporters in LA
#195 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

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) -7% overall
Year Total Releases (lbs) vs Prior Year
2015 1,138,135 —
2016 782,648 -31%
2017 1,060,466 +35%
2018 1,037,366 -2%
2019 13,987 -99%
2020 758,576 +5323%
2021 1,051,748 +39%
2022 1,207,985 +15%
2023 1,120,562 -7%
2024 1,052,928 -6%

2024

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 869,687 — — 869,687 —
Ammonia 68,524 44,640 — 23,884 19
Aniline 52,466 17,767 — 34,699 3,627 ♦ Carcinogen
N-Methyl-2-pyrrolidone 16,976 17 — 16,959 —
Certain glycol ethers 15,317 15 — 15,302 —
Creosote 11,900 2,547 — 9,353 — ♦ Carcinogen
Nitric acid 9,513 9,513 — — —
Benzene 3,880 3,875 — 5 134 ♦ Carcinogen
p-Phenylenediamine 2,176 2,113 — 63 2,133
Polycyclic aromatic compounds 896 192 — 704 — ♦ Carcinogen
4-Aminoazobenzene 721 — — 721 1,922 ♦ Carcinogen
Biphenyl 405 405 — — —
Toluene 199 199 — — 30
1,2-Phenylenediamine 125 123 — 2 698 ♦ Carcinogen
Diphenylamine 69 11 — 58 24
4-Aminobiphenyl 50 37 — 13 118 ♦ Carcinogen
Xylene (mixed isomers) 8 8 — — —
Chromium 5 5 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chlorine 3 3 — — —
Copper 2 2 — — —
Phenol 1 1 — — —

2023

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 978,594 — — 978,594 —
Ammonia 69,876 43,001 — 26,875 31
Aniline 23,714 17,818 — 5,896 1,393 ♦ Carcinogen
Creosote 11,900 1,192 — 10,708 — ♦ Carcinogen
Certain glycol ethers 10,992 11 — 10,981 —
Nitric acid 9,525 9,525 — — 2,275
N-Methyl-2-pyrrolidone 7,545 8 — 7,537 90
Benzene 3,903 3,899 — 4 128 ♦ Carcinogen
p-Phenylenediamine 2,232 2,146 — 86 3,911
Polycyclic aromatic compounds 896 90 — 806 — ♦ Carcinogen
4-Aminoazobenzene 493 — — 493 2,173 ♦ Carcinogen
Biphenyl 405 405 — — 200
Toluene 188 188 — — 68
1,2-Phenylenediamine 120 118 — 2 788 ♦ Carcinogen
Diphenylamine 90 12 — 78 83
4-Aminobiphenyl 48 37 — 11 664 ♦ Carcinogen
Xylene (mixed isomers) 25 25 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chromium 5 5 — — —
Chlorine 3 3 — — —
Copper 2 2 — — —
Phenol 1 1 — — —

2022

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 1,042,093 — — 1,042,093 —
Ammonia 75,723 47,104 — 28,619 9
Aniline 41,726 17,660 — 24,066 863 ♦ Carcinogen
Certain glycol ethers 15,667 13 — 15,654 —
Creosote 11,900 1,222 — 10,678 — ♦ Carcinogen
Nitric acid 9,529 9,529 — — 1,324
Benzene 3,954 3,938 — 16 79 ♦ Carcinogen
p-Phenylenediamine 2,230 2,142 — 88 7,032
N-Methyl-2-pyrrolidone 1,890 2 — 1,888 —
4-Aminoazobenzene 1,372 — — 1,372 92 ♦ Carcinogen
Polycyclic aromatic compounds 896 92 — 804 — ♦ Carcinogen
Biphenyl 403 403 — — 1,200
1,2-Phenylenediamine 244 242 — 2 859 ♦ Carcinogen
Toluene 174 174 — — 92
Diphenylamine 96 15 — 81 92
4-Aminobiphenyl 52 36 — 16 262 ♦ Carcinogen
Xylene (mixed isomers) 20 20 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chromium 5 5 — — —
Chlorine 3 3 — — —
Copper 2 2 — — —
Phenol 1 1 — — —

2021

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 935,392 — — 935,392 —
Ammonia 72,122 46,433 — 25,689 35
Aniline 18,419 9,133 — 9,286 772 ♦ Carcinogen
Creosote 11,900 1,194 — 10,706 — ♦ Carcinogen
N-Methyl-2-pyrrolidone 5,670 6 — 5,664 —
Benzene 2,241 2,225 — 16 2,548 ♦ Carcinogen
4-Aminoazobenzene 1,337 — — 1,337 43 ♦ Carcinogen
Certain glycol ethers 1,255 1 — 1,254 5
p-Phenylenediamine 1,160 1,078 — 81 8,867
Polycyclic aromatic compounds 896 90 — 806 — ♦ Carcinogen
Nitric acid 841 841 — — —
1,2-Phenylenediamine 158 156 — 2 796 ♦ Carcinogen
Biphenyl 150 150 — — 150
Diphenylamine 85 11 — 74 271
Toluene 49 49 — — 39
4-Aminobiphenyl 31 13 — 19 190 ♦ Carcinogen
Xylene (mixed isomers) 29 29 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chromium 5 5 — — —
Chlorine 3 3 — — —
Copper 2 2 — — —
Phenol 0 0 — — —

2020

Chemical Total (lbs) Air Water Land Off-Site
Phenol — — — — —
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 670,651 — — 670,651 —
Ammonia 52,505 34,087 — 18,418 —
Aniline 16,007 9,007 — 7,000 1,673 ♦ Carcinogen
Creosote 11,900 1,208 — 10,692 — ♦ Carcinogen
Benzene 2,072 2,064 — 8 111 ♦ Carcinogen
Nitric acid 914 914 — — —
p-Phenylenediamine 909 850 — 59 3,492
Polycyclic aromatic compounds 896 91 — 805 — ♦ Carcinogen
Certain glycol ethers 885 1 — 884 —
N-Methyl-2-pyrrolidone 770 1 — 769 —
4-Aminoazobenzene 439 — — 439 34 ♦ Carcinogen
Toluene 233 233 — — 37
1,2-Phenylenediamine 151 150 — 1 1,800 ♦ Carcinogen
Biphenyl 128 128 — — 120
Diphenylamine 65 11 — 54 226
4-Aminobiphenyl 19 12 — 7 850 ♦ Carcinogen
Xylene (mixed isomers) 17 17 — — —
Chromium 5 5 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chlorine 3 3 — — —
Copper 2 2 — — —

2019

Chemical Total (lbs) Air Water Land Off-Site
N-Methyl-2-pyrrolidone 12,764 13 — 12,751 28,154
4-Aminoazobenzene 1,136 — — 1,136 68 ♦ Carcinogen
Toluene 59 59 — — 17
4-Aminobiphenyl 28 11 — 17 1,932 ♦ Carcinogen

2018

Chemical Total (lbs) Air Water Land Off-Site
Phenol — — — — —
p-Nitroaniline — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 870,000 — — 870,000 —
Ammonia 84,800 60,800 — 24,000 24
Aniline 43,700 7,700 — 36,000 884 ♦ Carcinogen
Creosote 12,200 1,200 — 11,000 — ♦ Carcinogen
Certain glycol ethers 9,957 57 — 9,900 —
N-Methyl-2-pyrrolidone 6,106 6 — 6,100 —
p-Phenylenediamine 4,743 943 — 3,800 6,249
Benzene 2,204 2,193 — 11 72,381 ♦ Carcinogen
4-Aminoazobenzene 1,300 — — 1,300 29 ♦ Carcinogen
Polycyclic aromatic compounds 902 96 — 806 — ♦ Carcinogen
Nitric acid 874 874 — — —
1,2-Phenylenediamine 145 143 — 2 6,696 ♦ Carcinogen
Biphenyl 139 139 — — —
Toluene 120 120 — — 5
Diphenylamine 69 9 — 60 173
Xylene (mixed isomers) 58 58 — — —
4-Aminobiphenyl 34 10 — 24 21 ♦ Carcinogen
Nickel 5 5 — — — ♦ Carcinogen
Chromium 5 5 — — —
Chlorine 3 3 — — —
Copper 2 2 — — —

2017

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Phenol — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 910,000 — — 910,000 —
Aniline 65,644 7,644 — 58,000 1,140 ♦ Carcinogen
Ammonia 39,401 14,400 1 25,000 19
Certain glycol ethers 17,114 114 — 17,000 —
Creosote 12,200 1,200 — 11,000 — ♦ Carcinogen
N-Methyl-2-pyrrolidone 5,706 6 — 5,700 —
p-Phenylenediamine 4,621 821 — 3,800 5,002
Benzene 2,186 2,171 — 15 172 ♦ Carcinogen
4-Aminoazobenzene 1,100 — — 1,100 57 ♦ Carcinogen
Polycyclic aromatic compounds 901 95 — 806 — ♦ Carcinogen
Nitric acid 857 857 — — —
Xylene (mixed isomers) 213 213 — — —
1,2-Phenylenediamine 177 175 — 2 266,414 ♦ Carcinogen
Biphenyl 139 139 — — —
Diphenylamine 85 8 — 77 114
Toluene 75 75 — — —
4-Aminobiphenyl 32 16 — 16 70 ♦ Carcinogen
Chromium 5 5 — — —
Nickel 5 5 — — — ♦ Carcinogen
Chlorine 3 3 — — —
Copper 2 2 — — —

2016

Chemical Total (lbs) Air Water Land Off-Site
Phenol — — — — —
p-Nitroaniline — — — — —
Copper — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 630,000 — — 630,000 —
Aniline 52,600 12,600 — 40,000 745 ♦ Carcinogen
Ammonia 33,900 16,900 — 17,000 —
N-Methyl-2-pyrrolidone 24,025 25 — 24,000 —
p-Phenylenediamine 13,106 13,106 — — 2,923
Creosote 12,200 1,200 — 11,000 — ♦ Carcinogen
Certain glycol ethers 10,087 87 — 10,000 —
Benzene 2,643 2,635 — 8 112 ♦ Carcinogen
4-Aminoazobenzene 1,400 — — 1,400 72 ♦ Carcinogen
Polycyclic aromatic compounds 900 94 — 806 — ♦ Carcinogen
Nitric acid 843 843 — — —
1,2-Phenylenediamine 254 254 — — 361,965 ♦ Carcinogen
Xylene (mixed isomers) 147 147 — — —
4-Aminobiphenyl 144 128 — 16 76 ♦ Carcinogen
Biphenyl 139 139 — — 285
Diphenylamine 137 76 — 61 57
Toluene 110 110 — — 105
Nickel 5 5 — — — ♦ Carcinogen
Chromium 5 5 — — —
Chlorine 3 3 — — —

2015

Chemical Total (lbs) Air Water Land Off-Site
p-Nitroaniline — — — — —
Triethylamine — — — — —
Phenol — — — — —
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 697,000 — 27,000 670,000 —
Chloroprene 214,677 207,700 77 6,900 3,431 ♦ Carcinogen
Aniline 61,500 12,500 — 49,000 833 ♦ Carcinogen
Ammonia 40,700 22,700 — 18,000 —
Toluene 29,605 25,100 5 4,500 13,214
N-Methyl-2-pyrrolidone 18,109 109 — 18,000 1,290
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 15,349 15,349 — — —
Certain glycol ethers 15,205 205 — 15,000 18
p-Phenylenediamine 13,131 13,131 — — 3,614
Creosote 12,200 1,200 — 11,000 3,506 ♦ Carcinogen
1,4-Dichloro-2-butene 4,973 654 19 4,300 9,964
1,3-Butadiene 3,598 3,598 — — 3 ♦ Carcinogen
Benzene 2,683 2,669 — 14 31 ♦ Carcinogen
Chlorine 2,442 2,442 — — —
Copper 1,317 2 15 1,300 1,023
4-Aminoazobenzene 1,100 — — 1,100 8 ♦ Carcinogen
Xylene (mixed isomers) 908 908 — — 94
Polycyclic aromatic compounds 902 97 — 805 264 ♦ Carcinogen
Nitric acid 839 839 — — —
Nickel 524 5 110 409 648 ♦ Carcinogen
1,2-Phenylenediamine 347 347 — — 701 ♦ Carcinogen
Chromium 286 5 26 255 42
Diphenylamine 166 88 — 78 77
4-Aminobiphenyl 161 145 — 16 14 ♦ Carcinogen
1,2-Dichlorobenzene 148 148 — — 73
Biphenyl 139 139 — — —
Dichloromethane 73 73 — — 353 ♦ Carcinogen
Tetrachloroethylene 32 32 — — 103 ♦ Carcinogen
N-Nitrosodiphenylamine 16 16 — — 2,187
Benzyl chloride 5 5 — — —
Dioxin and dioxin-like compounds 0 0 — 0 — ♦ 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
4-Aminoazobenzene — — — 1,922
Benzene — — 165,327 58,885
Toluene — — — 30
Ammonia — — — 443,208
1,2-Phenylenediamine — — 2,196,608 2,196
p-Phenylenediamine — — 955,062 2,511
Nitric acid — — — 1
Aniline — — 638,382 48,763
4-Aminobiphenyl — — 537,037 123
Diphenylamine — — 191,013 102

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
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
Aniline — — — 3,627
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
4-Aminobiphenyl — — — 118
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
p-Phenylenediamine — — — 2,133
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
4-Aminoazobenzene — — — 1,922
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
Benzene — — — 134
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
Diphenylamine — — — 24
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
1,2-Phenylenediamine — — — 698
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
Toluene — — — 30
VEOLIA ES TECHNICAL SOLUTIONS
PORT ARTHUR, TX
Ammonia — — — 19

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
caa — — — Open
caa — — — Open
caa — — — Open
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 10, 2012 Jun 12, 2012 Resolved
rcra Standards for Owners and Operators of HW TSDs: Tank Systems Nov 18, 2009 Jan 25, 2010 Resolved
rcra Land Disposal Restrictions: Prohibitions on Storage Nov 18, 2009 Nov 18, 2009 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Nov 18, 2009 Jan 25, 2010 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Feb 27, 2008 Mar 6, 2008 Resolved
rcra Standards for Owners and Operators of HW TSDs: Closure and Post-Closure Feb 27, 2008 Oct 6, 2009 Resolved
rcra Standards for Owners and Operators of HW TSDs: Tank Systems Feb 27, 2008 Oct 6, 2009 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Feb 27, 2008 Mar 6, 2008 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Apr 26, 2007 Oct 16, 2007 Resolved
rcra Standards for Owners and Operators of HW TSDs: Use and Management of Containers Apr 26, 2007 Oct 16, 2007 Resolved
rcra Standards for Owners and Operators of HW TSDs: Use and Management of Containers Dec 14, 2004 Jan 14, 2005 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards Dec 14, 2004 Jan 14, 2005 Resolved
rcra Standards for Owners and Operators of HW TSDs: Tank Systems Nov 3, 2003 Dec 5, 2003 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program Permit Application Feb 20, 1997 Aug 8, 1997 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards Mar 3, 1995 Oct 24, 1995 Resolved
rcra Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting Mar 3, 1995 Oct 24, 1995 Resolved
rcra Standards for Owners and Operators of HW TSDs: Tank Systems Mar 3, 1995 Oct 24, 1995 Resolved
rcra Land Disposal Restrictions: General Mar 3, 1995 Oct 24, 1995 Resolved
rcra Land Disposal Restrictions: General Apr 28, 1994 May 11, 1994 Resolved
rcra Land Disposal Restrictions: General Apr 12, 1994 May 11, 1994 Resolved
rcra Standards Applicable to Generators of HW: General Mar 1, 1991 Jun 3, 1991 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Sep 5, 1990 Feb 4, 1991 Resolved
rcra Land Disposal Restrictions: General Sep 22, 1989 Dec 12, 1989 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jul 8, 1988 Dec 8, 1988 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jun 13, 1988 Jul 29, 1988 Resolved

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.

Administrative - Formal
· Case 06-1997-0222
Administrative - Formal
Clean Air Act · Case 3604133744 · Sep 25, 2024
$480,000
Administrative - Formal
· Case 06-2024-3308 · Sep 25, 2024
$480,000
Notice of Violation
Clean Air Act · Case 3603593976 · Mar 8, 2023
Other Response - No Further Action
Clean Air Act · Case 3602848664 · Oct 5, 2021
Notice of Noncompliance Issued
Clean Air Act · Case 3602760626 · Jul 6, 2021
Administrative - Formal
· Case 06-2016-3387 · Jun 9, 2016
$37,500
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-132 · Jul 19, 2012
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-540 · Dec 16, 2009
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-078 · Dec 22, 2008
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-089 · Oct 16, 2007
Administrative - Formal
· Case 06-2006-0018 · Jun 30, 2006
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-444 · Mar 9, 2005
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-348 · Sep 22, 2004
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-000 · Mar 7, 1997
$31,800
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-008 · Oct 9, 1995
STATE LEVEL ADMINISTRATIVE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-179 · May 4, 1994
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-107 · May 8, 1991
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-515 · Jan 8, 1991
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-LAD001890367-003 · Oct 11, 1989

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