Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COVESTRO LLC
730 MAIN ST, WILMINGTON, MA, 01887
Parent company: COVESTRO LLC
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 | Triethylamine | Methyl ethyl ketone | Methyl methacrylate | N-Methyl-2-pyrrolidone | Styrene | Total (lbs) |
| 2024 | 538 | — | 262 | — | — | 1,056 |
| 2023 | 543 | — | 357 | — | — | 1,155 |
| 2022 | 3,010 | — | 293 | — | — | 3,303 |
| 2021 | 607 | — | 314 | — | — | 923 |
| 2020 | 612 | — | 270 | 1 | — | 883 |
| 2019 | 601 | — | 254 | 5 | — | 861 |
| 2018 | 621 | — | 253 | 1 | — | 887 |
| 2017 | 0 | — | 922 | 2 | — | 930 |
| 2016 | 4 | — | 854 | 1 | — | 865 |
| 2015 | 63 | — | 692 | 1 | — | 758 |
| 2014 | — | — | 650 | 28 | — | 678 |
| 2013 | 74 | — | 547 | 0 | — | 630 |
| 2012 | — | — | 931 | 11 | — | 964 |
| 2011 | — | — | 1,060 | 10 | — | 1,107 |
| 2010 | 988 | — | 126 | 23 | 10 | 1,161 |
| 2009 | 1,005 | — | 184 | 20 | — | 1,223 |
| 2008 | 1,077 | — | 211 | 21 | 12 | 1,351 |
| 2007 | 1,077 | — | 142 | 11 | — | 1,230 |
| 2006 | 983 | — | — | 11 | — | 994 |
| 2005 | 989 | — | 118 | 11 | — | 1,132 |
| 2004 | 42 | — | 167 | 11 | 12 | 245 |
| 2003 | — | — | 8 | 1,079 | — | 1,110 |
| 2002 | — | — | 8 | 852 | 7 | 882 |
| 2001 | 1 | — | 8 | 917 | 7 | 939 |
| 2000 | — | 56 | 7 | 1,007 | 6 | 1,083 |
| 1999 | — | 54 | 8 | 1,059 | 6 | 1,149 |
| 1998 | 35 | 697 | — | 565 | — | 1,558 |
| 1997 | 43 | 986 | 156 | 428 | 151 | 1,927 |
| 1996 | 41 | 1,186 | 156 | 510 | 201 | 2,383 |
| 1995 | — | 990 | 157 | 186 | 152 | 1,638 |
| 1994 | — | 1,132 | 156 | — | 152 | 1,993 |
| 1993 | — | 1,013 | 156 | — | 152 | 1,867 |
| 1992 | — | 871 | 157 | — | 152 | 1,763 |
| 1991 | — | 641 | 123 | — | 250 | 1,657 |
| 1990 | — | 798 | 125 | — | 193 | 2,012 |
| 1989 | — | 840 | 153 | — | 195 | 2,227 |
| 1988 | — | 2,093 | 297 | — | 163 | 2,694 |
| 1987 | — | — | 393 | — | — | 712 |
▎ 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.