Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ARKEMA WEST CHESTER PLANT
610 S BOLMAR ST, WEST CHESTER, PA, 19382
Parent company: ARKEMA DELAWARE INC
Carcinogen
— 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 | Toluene | Acrylic acid | Methanol | Benzene | Certain glycol ethers | Total (lbs) |
| 2024 | 4,950 | 870 | — | — | 10 | 5,850 |
| 2023 | 5,219 | 866 | — | — | 10 | 6,115 |
| 2022 | 5,672 | 1,007 | — | — | 10 | 6,709 |
| 2021 | 7,180 | 1,443 | — | — | 10 | 8,643 |
| 2020 | 6,492 | 1,221 | — | — | 10 | 7,733 |
| 2019 | 5,885 | 1,303 | — | — | 10 | 7,208 |
| 2018 | 6,805 | 1,644 | — | — | 15 | 8,474 |
| 2017 | 6,643 | 1,537 | — | — | 15 | 8,205 |
| 2016 | 6,650 | 1,250 | — | — | 10 | 7,920 |
| 2015 | 9,900 | 1,000 | — | — | 10 | 10,920 |
| 2014 | 12,500 | 1,000 | — | — | 10 | 13,520 |
| 2013 | 13,400 | 1,250 | — | — | 10 | 14,670 |
| 2012 | 12,400 | 1,000 | — | — | 10 | 13,420 |
| 2011 | 11,300 | 868 | — | — | 10 | 12,188 |
| 2010 | 12,300 | 870 | — | — | 10 | 13,190 |
| 2009 | 12,000 | 870 | — | — | 10 | 12,890 |
| 2008 | 16,800 | 1,470 | — | — | 10 | 18,290 |
| 2007 | 36,800 | 1,360 | — | — | 10 | 38,180 |
| 2006 | 42,900 | 2,270 | — | — | 10 | 45,190 |
| 2005 | 42,900 | 2,470 | — | — | 10 | 45,390 |
| 2004 | 37,800 | 2,270 | — | — | 10 | 40,090 |
| 2003 | 31,500 | 1,740 | — | — | 10 | 33,270 |
| 2002 | 38,600 | 1,950 | — | — | 10 | 40,580 |
| 2001 | 35,400 | 1,830 | — | — | 10 | 37,260 |
| 2000 | 39,900 | 1,970 | — | — | 10 | 41,900 |
| 1999 | 37,801 | 2,200 | — | — | 10 | 40,031 |
| 1998 | 52,101 | 3,900 | — | — | 10 | 56,031 |
| 1997 | 61,100 | 3,900 | — | — | 10 | 65,030 |
| 1996 | 39,500 | 4,400 | — | — | 10 | 43,930 |
| 1995 | 36,890 | 3,617 | — | — | 10 | 40,537 |
| 1994 | 34,657 | 3,374 | — | — | 10 | 38,051 |
| 1993 | 28,568 | 2,641 | — | — | 8 | 31,237 |
| 1992 | 24,701 | 1,868 | — | — | 5 | 26,588 |
| 1991 | 35,381 | 1,755 | 6,548 | — | 5 | 43,703 |
| 1990 | 40,031 | 2,051 | 2,907 | — | — | 45,003 |
| 1989 | 37,502 | 1,800 | 6,455 | — | — | 45,771 |
| 1988 | 64,702 | 1,500 | — | 12,759 | 250 | 79,211 |
| 1987 | — | — | — | — | — | 1,250 |
▎ 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.