Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SAFETY-KLEEN SYSTEMS WEST CHESTER (WCP)
1140 GREENHILL RD, WEST CHESTER, PA, 19380
Parent company: CLEAN HARBORS INC
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 | Ethylene glycol | Total (lbs) | ||||
| 2018 | 1 | 1 | ||||
| 2017 | 5 | 5 | ||||
| 2016 | 5 | 5 | ||||
| 2014 | 2 | 2 | ||||
| 2013 | 47 | 47 | ||||
| 2012 | 28 | 28 | ||||
| 2011 | 42 | 42 | ||||
| 2009 | 29 | 29 | ||||
| 2008 | 17 | 17 | ||||
| 2007 | 12 | 12 | ||||
| 2006 | 3 | 3 | ||||
| 2005 | 6 | 6 | ||||
| 2004 | 7 | 7 | ||||
| 2003 | 3 | 3 | ||||
| 2002 | 5 | 5 | ||||
| 2001 | 8 | 8 | ||||
| 2000 | 11 | 11 | ||||
| 1999 | 11 | 11 | ||||
| 1998 | 8 | 8 | ||||
▎ 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.