Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
UNION CARBIDE CORP SEADRIFT PLANT
7501 N HWY 185, SEADRIFT, TX, 77983
Parent company: DOW 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 | Ethylene | Propylene | Naphthalene | Benzene | Ammonia | Total (lbs) |
| 2024 | 1,095,043 | 22,555 | — | — | 34,880 | 1,231,409 |
| 2023 | 1,068,736 | 16,925 | — | — | 45,422 | 1,204,094 |
| 2022 | 1,100,325 | 25,458 | — | — | 15,896 | 1,211,355 |
| 2021 | 930,471 | 26,759 | — | — | 27,736 | 1,051,184 |
| 2020 | 911,465 | 31,656 | — | — | 26,628 | 1,043,622 |
| 2019 | 868,030 | 32,041 | — | — | 25,665 | 1,028,147 |
| 2018 | 849,134 | 26,647 | — | — | 37,947 | 1,062,654 |
| 2017 | 774,656 | 23,599 | — | — | 27,607 | 922,577 |
| 2016 | 750,388 | 22,779 | — | — | 28,888 | 904,874 |
| 2015 | 689,069 | 22,497 | — | — | 43,973 | 838,755 |
| 2014 | 811,131 | 22,688 | — | — | 41,028 | 953,791 |
| 2013 | 827,594 | 36,520 | — | — | 21,613 | 989,789 |
| 2012 | 950,660 | 26,822 | — | — | 16,817 | 1,101,195 |
| 2011 | 660,908 | 57,439 | — | — | 20,805 | 838,865 |
| 2010 | 750,707 | 62,767 | — | — | 29,488 | 963,984 |
| 2009 | 658,187 | 63,973 | — | — | 18,654 | 870,470 |
| 2008 | 815,072 | 89,773 | — | — | 46,505 | 1,103,324 |
| 2007 | 892,195 | 105,922 | — | — | 50,380 | 1,226,456 |
| 2006 | 858,512 | 141,356 | — | — | 62,188 | 1,242,737 |
| 2005 | 994,762 | 147,123 | — | — | 77,297 | 1,380,582 |
| 2004 | 1,032,724 | 151,169 | — | — | 76,666 | 1,475,023 |
| 2003 | 1,123,037 | 204,763 | 101,525 | 67,851 | 97,292 | 1,875,213 |
| 2002 | 1,479,145 | 289,159 | 142,579 | 96,501 | 81,204 | 2,579,311 |
| 2001 | 1,367,717 | 228,084 | 125,820 | 84,606 | 91,936 | 2,153,637 |
| 2000 | 1,589,505 | 336,061 | 141,595 | 101,042 | 90,621 | 2,652,511 |
| 1999 | 1,758,132 | 215,773 | 146,029 | 100,455 | 38,391 | 2,814,524 |
| 1998 | 1,626,268 | 185,568 | 157,172 | 95,060 | 22,092 | 2,452,869 |
| 1997 | 1,710,495 | 256,362 | 162,236 | 88,798 | 24,533 | 2,585,698 |
| 1996 | 1,785,455 | 271,982 | 147,281 | 90,342 | 14,401 | 2,790,213 |
| 1995 | 1,252,970 | 267,354 | 149,717 | 107,429 | 27,499 | 2,355,060 |
| 1994 | 1,509,566 | 109,097 | 139,781 | 119,143 | 88,031 | 2,428,180 |
| 1993 | 1,903,807 | 80,751 | 150,858 | 88,056 | 50,554 | 2,551,869 |
| 1992 | 1,212,716 | 45,475 | 152,709 | 130,439 | 49,781 | 2,143,381 |
| 1991 | 1,529,367 | 128,735 | 279,982 | 166,022 | 54,375 | 2,603,555 |
| 1990 | 1,632,474 | 75,293 | 317,661 | 223,058 | 48,473 | 2,812,251 |
| 1989 | 1,793,021 | 162,657 | 322,270 | 349,298 | 6,037 | 3,324,431 |
| 1988 | 1,817,211 | 159,458 | — | — | — | 2,110,490 |
| 1987 | 1,795,417 | — | — | — | 37,899 | 1,934,847 |
▎ 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.