Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DUPONT PONTCHARTRAIN WORKS
586 HIGHWAY 44, LA PLACE, LA, 70068
Parent company: DUPONT DE NEMOURS INC
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Chloroprene | Ammonium nitrate (solution) | Certain glycol ethers | Ammonia | Total (lbs) |
| 2024 | 869,687 | — | — | 15,317 | 68,524 | 1,052,928 |
| 2023 | 978,594 | — | — | 10,992 | 69,876 | 1,120,562 |
| 2022 | 1,042,093 | — | — | 15,667 | 75,723 | 1,207,985 |
| 2021 | 935,392 | — | — | 1,255 | 72,122 | 1,051,748 |
| 2020 | 670,651 | — | — | 885 | 52,505 | 758,576 |
| 2019 | 856,517 | — | — | 1,183 | 63,785 | 999,997 |
| 2018 | 870,000 | — | — | 9,957 | 84,800 | 1,037,366 |
| 2017 | 910,000 | — | — | 17,114 | 39,401 | 1,060,466 |
| 2016 | 630,000 | — | — | 10,087 | 33,900 | 782,648 |
| 2015 | 697,000 | 214,677 | — | 15,205 | 40,700 | 1,138,135 |
| 2014 | 754,000 | 265,488 | — | 15,302 | 41,700 | 1,200,801 |
| 2013 | 740,000 | 258,184 | — | 18,264 | 41,700 | 1,173,636 |
| 2012 | 748,858 | 261,217 | — | 25,163 | 47,442 | 1,213,271 |
| 2011 | 760,000 | — | — | 14,600 | 31,947 | 843,279 |
| 2010 | 774,455 | — | — | 11,214 | 34,377 | 864,412 |
| 2009 | 502,937 | — | — | 9,202 | 27,371 | 573,457 |
| 2008 | 649,497 | — | — | 16,195 | 33,959 | 747,334 |
| 2007 | 703,951 | — | — | 12,963 | 35,578 | 783,193 |
| 2006 | 654,642 | — | — | 15,213 | 33,421 | 728,145 |
| 2005 | 609,615 | — | — | 1,464 | 27,770 | 653,395 |
| 2004 | 557,856 | — | — | 710 | 23,574 | 594,854 |
| 2003 | 516,206 | — | — | 1,211 | 22,145 | 552,195 |
| 2002 | 395,494 | — | — | 858 | 20,564 | 428,628 |
| 2001 | 548,244 | — | — | 1,005 | 30,088 | 602,347 |
| 2000 | 584,895 | — | — | 1,043 | 32,183 | 643,597 |
| 1999 | 539,230 | — | — | 613 | 29,826 | 588,590 |
| 1998 | 500,000 | — | — | 1,103 | 31,800 | 560,753 |
| 1997 | 390,000 | — | — | — | 29,800 | 445,960 |
| 1996 | 490,000 | — | — | — | 29,199 | 575,858 |
| 1995 | 490,000 | 445,500 | — | 110,038 | 38,110 | 1,301,644 |
| 1994 | — | 513,302 | 607,000 | 129,110 | 20,145 | 1,489,915 |
| 1993 | — | 370,007 | 600,000 | 111,110 | 16,600 | 1,307,423 |
| 1992 | — | 805,005 | 520,000 | 191,110 | 18,600 | 1,815,032 |
| 1991 | — | 872,002 | 730,000 | 175,409 | 25,800 | 2,056,513 |
| 1990 | — | 1,062,006 | 845,000 | 193,200 | 32,200 | 2,464,395 |
| 1989 | — | 1,130,211 | 600,000 | 308,170 | 29,987 | 2,383,971 |
| 1988 | — | — | 910,000 | — | 24,340 | 1,298,281 |
| 1987 | — | — | — | — | — | 189,583 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.