EPA TRI Facility · Chemicals
Dupont Pontchartrain Works
La Place, LA · Parent: Dupont de Nemours Inc
- Total releases
- 5.1M lbs
- Chemicals reported
- 23
- Carcinogens
- 8
- Primary pathway
- Land Disposal
LAND Form-R mix
Dupont Pontchartrain Works: how the 5.1M lbs splits
5.1M lbs across all reported pathways
- Land Disposal 4.8M lbs 93.7%
- Air Releases 324.8K lbs 6.3%
- Off-site Transfers 1.3K lbs <0.1%
Dupont Pontchartrain Works's 5.1M lbs Form-R total is LAND - land disposal is 93.7% of the bar. Next segment: air releases at 6.3%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
HEAVY volume LAND pathway CARC-LEAN
Dupont Pontchartrain Works is an EPA Toxics Release Inventory reporter in La Place, LA, in the chemicals sector. It reported 1.1M lbs of releases across 23 chemicals in 2023, and 5.1M lbs in total across its 2019-2023 reporting years. That ranks 418 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Louisiana's 417 reporting TRI sites, pounds #1 is not chemical-count #1. Dupont Pontchartrain Works is pounds #26 and chemical-count #37 at 5.1M lbs. Bayer Cropscience LP leads reported pounds (81.9M lbs) at 17 chemicals (chemical-count #52). Eco-Services Operations leads chemical count at 68 chemicals (163.5K lbs, pounds #136). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Denka Performance Elastomer LLC; Pvs Dx Inc.; Clariant Corporation - Reserve Site; Shell Norco Chemical Plant West Site. Similar-scale Chemicals peers outside Louisiana: Scotts Co; Exxonmobil Baytown Chemical Plant (part); Westlake Longview Corp; Vibrantz Specialty Products LLC. Other Dupont de Nemours Inc sites in this extract: Dupont Specialty Products USA LLC - Spruance Plant; Filmtec Corp; Dupont Yerkes Plant; Dupont Circleville Plant. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ammonia; Aniline; Creosote.
Dupont Pontchartrain Works stamps HEAVY volume with a dominant LAND pathway (93.7% land disposal) across 23 chemicals · 8 carcinogen-classified. Cumulative Form-R extract: 5.1M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Scotts Co and Exxonmobil Baytown Chemical Plant (part).
Dupont Pontchartrain Works vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
5.1M lbs Top 2% higher than 98% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Dupont Pontchartrain Works inside St. John The Baptist Parish's TRI pounds
Among the 3,917 Chemicals facilities in this database, Dupont Pontchartrain Works reports the 78th-largest volume, placing it in the top 2% of its sector. This one site accounts for 50.8% of every pound reported in St. John The Baptist Parish. Its reported volume is concentrated rather than spread: Nitrate compounds (water dissociable; reportable only when in aqueous solution) alone is 87.2% of the total. Scale peers outside Louisiana include Scotts Co and Exxonmobil Baytown Chemical Plant (part).
County-dominant here means ≥25% of St. John The Baptist Parish's reported pounds (10.1M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Dupont Pontchartrain Works's total reported releases fell from 1.2 million lb in 2022 to 1.1 million lb in 2023, based on EPA TRI filings.
- Dupont Pontchartrain Works's off-site transfers fell from 1.3 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Dupont Pontchartrain Works's land releases fell from 1.1 million lb in 2022 to 1.0 million lb in 2023, based on EPA TRI filings.
- Dupont Pontchartrain Works's air releases fell from 82.6 thousand lb in 2022 to 78.5 thousand lb in 2023, based on EPA TRI filings.
Dupont Pontchartrain Works Form-R facts
Compare this facility
See how Dupont Pontchartrain Works stacks up against nearby facilities and the typical reporter.
12.0× more than the comparison
35% more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Dupont Pontchartrain Works releases toxic chemicals into the environment. Total: 5.1M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 12% (1000.0K lbs to 1.1M lbs).
Dupont Pontchartrain Works: annual Form-R pounds
HEAVY site · LAND pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Dupont Pontchartrain Works year-over-year reported totals (increased by 12% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1000.0K lbs | 23 |
| 2020 | 758.6K lbs | 23 |
| 2021 | 1.1M lbs | 23 |
| 2022 | 1.2M lbs | 23 |
| 2023 | 1.1M lbs | 23 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 8 of 23 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 4.5M lbs | - |
| Ammonia | 334.0K lbs | - |
| Aniline | 147.3K lbs | Carcinogen |
| Creosote | 59.5K lbs | Carcinogen |
| Certain glycol ethers | 30.0K lbs | - |
| N-Methyl-2-pyrrolidone | 28.6K lbs | - |
| Nitric acid | 22.9K lbs | - |
| Benzene | 14.3K lbs | Carcinogen |
| p-Phenylenediamine | 7.4K lbs | - |
| 4-Aminoazobenzene | 4.8K lbs | Carcinogen |
| Polycyclic aromatic compounds | 4.5K lbs | Carcinogen |
| Biphenyl | 1.2K lbs | - |
| 1,2-Phenylenediamine | 863 lbs | Carcinogen |
| Toluene | 703 lbs | - |
| Diphenylamine | 421 lbs | - |
| 4-Aminobiphenyl | 180 lbs | Carcinogen |
| Xylene (mixed isomers) | 136 lbs | - |
| Nickel | 26 lbs | Carcinogen |
| Chromium | 26 lbs | - |
| Chlorine | 15 lbs | - |
| Copper | 10 lbs | - |
| Phenol | 2 lbs | - |
| p-Nitroaniline | 0 lbs | - |
Dupont Pontchartrain Works · LAND-pathway site
Nearest TRI Facilities to Dupont Pontchartrain Works
Closest other reporters in Louisiana - including Denka Performance Elastomer LLC, Pvs Dx Inc., Clariant Corporation - Reserve Site, ordered by distance.
Showing 8 of 416 other reporting facilities in Louisiana.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Louisiana - e.g. Scotts Co, Exxonmobil Baytown Chemical Plant (part), Westlake Longview Corp.
Compare beyond Louisiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Dupont Pontchartrain Works on cumulative reported pounds (5.1M lbs) and distinct chemical count (23). Release-pound peers include Materion Brush Inc, Phillips 66 Co Sweeny Refinery Complex, Scotts Co. Chemical-count peers include Woodland Pulp LLC, Brenntag Northeast LLC, Aes Warrior Run Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Dupont de Nemours Inc Facilities
Same-parent TRI sites ranked by reported releases - including Dupont Specialty Products USA LLC - Spruance Plant, Filmtec Corp, Dupont Yerkes Plant.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Aniline, Creosote; nearby reporters include Denka Performance Elastomer LLC. Dupont Pontchartrain Works stamps HEAVY volume · LAND pathway · CARC-LEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Dupont Pontchartrain Works TRI extract (HEAVY · LAND · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Dupont Pontchartrain Works totals are self-reported EPCRA §313 estimates for La Place, LA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325199 · Chemicals. 50.8% of St. John The Baptist Parish TRI pounds in this extract. Nearest ABS peer: Materion Brush Inc (Δ 3.4K lbs). Pounds ≠ exposure.
Dupont Pontchartrain Works stamps HEAVY volume · LAND pathway · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov