Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
U.S. DOD USAF WESTOVER ARB
250 PATRIOT AVE BOX 35, CHICOPEE, MA, 01022
Parent company: US DEPARTMENT OF DEFENSE
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Naphthalene | Xylene (mixed isomers) | Toluene | Benzene | Ethylbenzene | Total |
|---|---|---|---|---|---|---|
| 2024 | — | — | — | — | 4 | 4 |
| 2022 | — | 1 | — | — | — | 1 |
| 2021 | — | 30 | — | 3 | 10 | 43 |
| 2020 | — | 8 | — | 3 | 4 | 15 |
| 2019 | — | 6 | — | 4 | 2 | 12 |
| 2018 | 2 | 7 | — | 6 | 6 | 21 |
| 2017 | 4 | 7 | — | 6 | 4 | 21 |
| 2016 | 5 | 15 | — | 7 | 5 | 32 |
| 2015 | 1 | 19 | — | 3 | 4 | 27 |
| 2014 | 6 | 100 | 93 | 22 | 30 | 252 |
| 2013 | 1 | 35 | 73 | 32 | 10 | 152 |
| 2012 | 0 | 58 | 106 | 46 | 18 | 229 |
| 2011 | 3 | 23 | — | 14 | 4 | 44 |
| 2010 | 1,139 | 603 | 638 | 575 | 576 | 3,532 |
| 2009 | 8 | — | — | — | — | 8 |
| 2008 | 12 | — | — | — | — | 12 |
| 2007 | 7 | — | — | — | — | 7 |
| 2006 | 21 | — | — | — | — | 21 |
| 2005 | 7 | — | — | — | 16 | 23 |
| 2004 | 0 | — | — | — | 8 | 8 |
| 2003 | — | — | — | — | 10 | 10 |
| 2002 | 3 | — | — | — | — | 3 |