Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ENTEGRIS INC.
800 W FRONT ST, CHESTER, PA, 19013
Parent company: ENTEGRIS 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 | 1,2-Dichloroethane | Methanol | Toluene | n-Hexane | Xylene (mixed isomers) | Total (lbs) |
| 2024 | — | 813 | 1,930 | 232 | 178 | 3,198 |
| 2023 | — | 135 | 211 | 67 | 466 | 996 |
| 2022 | — | 188 | 230 | 129 | 8 | 557 |
| 2021 | — | 91 | 59 | 92 | 2 | 246 |
| 2020 | — | 34 | 34 | 49 | 1 | 118 |
| 2019 | — | 63 | 38 | 47 | 1 | 150 |
| 2018 | — | 66 | 64 | 48 | 1 | 179 |
| 2017 | — | 94 | 46 | 87 | 1 | 234 |
| 2016 | — | 255 | 255 | 255 | 10 | 795 |
| 2015 | — | 141 | 68 | 3 | 187 | 528 |
| 2014 | — | 174 | 180 | — | — | 467 |
| 2013 | — | 178 | 83 | 10 | — | 453 |
| 2012 | — | 28 | 70 | 91 | — | 255 |
| 2011 | — | 1,315 | 172 | 79 | 334 | 1,900 |
| 2010 | — | 500 | 500 | 500 | — | 1,500 |
| 2009 | — | 500 | 500 | 10 | — | 1,010 |
| 2008 | 1,750 | 1,000 | 500 | 10 | — | 3,260 |
| 2007 | 500 | 1,452 | 500 | 10 | — | 2,462 |
| 2006 | — | 3,822 | 1,000 | 255 | — | 5,077 |
| 2005 | — | 1,000 | 500 | — | — | 1,500 |
| 2004 | — | 14,140 | 500 | — | — | 14,640 |
| 2003 | — | 9,612 | 500 | — | — | 10,112 |
| 2002 | — | 1,500 | — | — | — | 1,500 |
| 2001 | 500 | 1,500 | 1,500 | 500 | — | 4,000 |
| 2000 | 10,221 | 1,860 | 500 | — | — | 12,582 |
| 1999 | 10,430 | 1,547 | 503 | — | — | 12,480 |
| 1998 | 11,400 | 1,111 | 419 | — | — | 12,930 |
| 1997 | 4 | 3 | 4 | — | — | 11 |
| 1996 | 4 | 3 | 3 | — | — | 10 |
| 1995 | 8,800 | — | 2,900 | — | 250 | 12,200 |
| 1994 | 3,165 | 1,000 | 4,400 | — | 350 | 9,165 |
| 1993 | — | — | 4,038 | — | — | 4,038 |
▎ 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.