Facility detail

THE DOW CHEMICAL CO - LOUISIANA OPERATIONS

21255 LA HWY 1 S, PLAQUEMINE, LA, 70764

Parent company: DOW INC

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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 Sodium sulfate (solution) Ammonia Ethylene Asbestos (friable) Cyclohexane Total (lbs)
2024 — 1,194,760 535,104 43,757 413 1,993,680
2023 — 1,168,710 622,186 116,951 409 2,123,901
2022 — 1,277,880 580,835 217,738 404 2,208,824
2021 — 1,307,033 519,219 516,304 840 2,512,237
2020 — 1,237,177 481,691 28,695 721 1,954,375
2019 — 1,315,030 502,040 14,320 885 2,095,458
2018 — 1,150,556 547,666 43,200 560 2,191,815
2017 — 1,116,539 444,299 159,200 556 2,245,156
2016 — 1,157,688 415,020 280,000 469 2,318,552
2015 — 1,127,611 410,076 84,800 754 2,157,638
2014 — 1,168,887 428,247 412,717 1,011 2,822,370
2013 — 1,221,398 378,299 289,771 644 2,795,645
2012 — 1,185,443 366,170 469,203 1,014 3,082,629
2011 — 1,088,162 356,626 343,027 95,567 2,915,343
2010 — 1,104,509 325,559 284,486 321,565 2,677,959
2009 — 1,085,778 319,260 544,114 303,839 2,980,182
2008 — 1,052,186 271,969 543,263 240,860 2,957,075
2007 — 1,049,144 324,639 1,254,489 303,497 4,046,801
2006 — 90,683 328,665 1,388,459 344,760 3,607,538
2005 — 99,460 402,794 171,940 290,703 1,578,811
2004 — 82,830 502,856 489,478 349,392 2,092,151
2003 — 138,687 461,011 456,297 280,892 1,876,912
2002 — 70,425 306,830 256,122 319,983 1,579,005
2001 — 70,312 398,422 664,418 303,761 1,987,428
2000 — 59,627 532,676 617,803 374,615 2,370,511
1999 — 64,656 572,000 326,000 326,500 2,025,470
1998 — 70,920 607,000 606,000 238,000 2,269,163
1997 — 55,330 630,000 504,000 265,300 2,276,408
1996 — 56,150 585,400 387,300 274,200 2,082,059
1995 — 104,240 580,700 127,111 253,890 2,076,563
1994 — 107,249 746,000 288,001 155,000 2,642,045
1993 — 501,340 675,000 470,000 165,000 3,866,291
1992 — 275,800 1,680,000 170,000 78,000 3,913,959
1991 — 135,800 1,350,000 250,002 39,000 4,338,017
1990 — 220,000 770,000 300,005 15,040 2,675,082
1989 — 278,000 1,168,000 240,000 6,110 4,754,691
1988 — 493,000 — — — 2,942,489
1987 36,000,000 — 846,000 — 405 38,215,818

▎ 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.