Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SAFETY-KLEEN SYSTEMS WEST MIFFLIN (WMP)
650 NOBLE DR, WEST MIFFLIN, PA, 15122
Parent company: CLEAN HARBORS INC
Carcinogen
PBT
— 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 | Methanol | Ethylene glycol | Polycyclic aromatic compounds | Total (lbs) | ||
| 2024 | 699 | 2 | — | 701 | ||
| 2023 | 935 | 2 | — | 937 | ||
| 2022 | 722 | 2 | — | 724 | ||
| 2021 | 596 | 1 | — | 597 | ||
| 2020 | 758 | 8 | — | 766 | ||
| 2019 | 986 | 11 | — | 997 | ||
| 2018 | 975 | 9 | — | 984 | ||
| 2017 | 1,065 | 21 | — | 1,086 | ||
| 2016 | 1,333 | 28 | — | 1,361 | ||
| 2015 | 1,032 | 14 | — | 1,046 | ||
| 2014 | 331 | 2 | — | 333 | ||
| 2013 | 524 | 15 | — | 539 | ||
| 2012 | 1,034 | 23 | — | 1,057 | ||
| 2011 | 1,146 | 24 | — | 1,170 | ||
| 2010 | 1,123 | 25 | — | 1,148 | ||
| 2009 | 235 | 13 | — | 248 | ||
| 2008 | 235 | 11 | — | 246 | ||
| 2007 | — | 10 | — | 10 | ||
| 2006 | — | 13 | — | 13 | ||
| 2005 | — | 11 | — | 11 | ||
| 2004 | — | 9 | — | 9 | ||
| 2003 | — | 4 | — | 4 | ||
| 2002 | — | 4 | — | 4 | ||
| 2001 | — | 5 | — | 5 | ||
| 2000 | — | 8 | 9 | 17 | ||
| 1999 | — | 8 | — | 8 | ||
| 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.