Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CHEMGENES CORP
33 INDUSTRIAL WAY, WILMINGTON, MA, 01887
Parent company: NA
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 | Chloroform | n-Hexane | Acetonitrile | Methanol | Dichloromethane | Total (lbs) |
| 2024 | 234 | 254 | — | 50 | 50 | 588 |
| 2023 | 330 | 280 | 180 | — | 60 | 850 |
| 2022 | 300 | 260 | 164 | — | — | 724 |
| 2021 | 4,160 | 1,000 | 500 | 500 | — | 6,160 |
| 2020 | 4,672 | 1,474 | 816 | 543 | — | 7,505 |
| 2019 | 3,001 | 2,782 | — | 692 | — | 6,475 |
| 2018 | 3,217 | 1,789 | 902 | — | — | 5,908 |
| 2017 | 2,630 | 1,654 | — | — | — | 4,284 |
| 2016 | 2,550 | 1,500 | — | — | — | 4,050 |
| 2015 | 1,500 | 500 | — | — | — | 2,000 |
| 2014 | 1,500 | 500 | — | — | — | 2,000 |
| 2013 | 1,500 | 500 | — | — | — | 2,000 |
| 2012 | 1,500 | 500 | — | — | — | 2,000 |
| 2011 | 1,500 | 500 | — | — | — | 2,000 |
| 2010 | 1,500 | 500 | — | — | — | 2,000 |
| 2009 | 1,500 | 500 | — | — | — | 2,000 |
| 2008 | 1,514 | 510 | — | — | — | 2,024 |
| 2007 | 1,116 | 352 | — | — | — | 1,468 |
| 2006 | 1,695 | 443 | — | — | — | 2,138 |
| 2005 | 708 | 170 | — | — | — | 878 |
| 2004 | 443 | 113 | — | — | — | 556 |
| 2003 | 354 | — | — | — | — | 354 |
| 2002 | 189 | — | — | — | — | 189 |
▎ 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.