Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WESTLAKE CHEMICALS & VINYLS LLC
715 HWY 25 S, ABERDEEN, MS, 39730
Parent company: WESTLAKE CORP
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 | Vinyl chloride | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Chlorine | Phthalic anhydride | Methanol | Total (lbs) |
| 2024 | 8,514 | — | 22 | 509 | 6,902 | 16,536 |
| 2023 | 8,623 | — | 20 | 542 | 3,988 | 13,757 |
| 2022 | 70,077 | — | 373 | 332 | 1,825 | 73,180 |
| 2021 | 4,779 | — | 1,919 | 3,352 | 2,431 | 14,158 |
| 2020 | 8,727 | — | 1,944 | 3,352 | 2,431 | 18,036 |
| 2019 | 9,619 | — | 1,954 | 3,352 | 2,431 | 18,936 |
| 2018 | 11,204 | — | 1,963 | 3,352 | 2,431 | 20,337 |
| 2017 | 9,286 | — | 1,938 | 3,352 | 2,431 | 18,394 |
| 2016 | 9,902 | — | 1,955 | 3,352 | 2,431 | 19,027 |
| 2015 | 10,292 | — | 1,941 | 3,352 | 1,825 | 18,797 |
| 2014 | 16,784 | — | 1,946 | 3,352 | 1,825 | 25,294 |
| 2013 | 19,118 | — | 1,629 | 3,270 | 2,065 | 28,418 |
| 2012 | 23,959 | — | 1,628 | 5,626 | — | 33,559 |
| 2011 | 18,492 | — | 1,626 | 5,626 | — | 28,090 |
| 2010 | 19,100 | — | 1,618 | 5,626 | — | 28,690 |
| 2009 | 25,023 | — | 1,623 | 5,626 | — | 34,618 |
| 2008 | 17,575 | — | 4,412 | 5,626 | — | 28,491 |
| 2007 | 52,326 | — | 4,404 | 867 | — | 58,473 |
| 2006 | 24,080 | — | 4,405 | 867 | — | 30,228 |
| 2005 | 30,645 | — | 4,403 | 867 | — | 36,791 |
| 2004 | 38,110 | — | 4,408 | 867 | 2,673 | 46,944 |
| 2003 | 30,272 | — | 4,334 | 867 | 4,624 | 40,974 |
| 2002 | 28,069 | — | 4,329 | 363 | 1,520 | 35,165 |
| 2001 | 27,896 | — | 3,959 | 363 | 1,520 | 34,547 |
| 2000 | 29,170 | — | 4,284 | 400 | 520 | 35,248 |
| 1999 | 36,772 | 25,086 | 19,025 | 400 | 525 | 82,763 |
| 1998 | 14,025 | 61,972 | 9,799 | 400 | 525 | 87,596 |
| 1997 | 18,429 | 54,225 | 8,803 | 400 | 525 | 83,092 |
| 1996 | 31,236 | 9,296 | 9,186 | 400 | 525 | 51,234 |
| 1995 | 39,945 | — | 8,701 | 400 | 510 | 50,203 |
| 1994 | 39,284 | — | 3,989 | 200 | 510 | 44,427 |
| 1993 | 42,675 | — | 2,736 | — | 755 | 46,475 |
| 1992 | 30,102 | — | — | — | 755 | 31,196 |
| 1991 | 30,871 | — | — | — | 755 | 31,949 |
| 1990 | 64,005 | — | — | — | 755 | 65,089 |
| 1989 | 76,218 | — | — | — | 500 | 77,356 |
| 1988 | 76,562 | — | — | — | 250 | 76,812 |
| 1987 | — | — | 500 | — | — | 500 |
▎ 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.