Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
3M ASTON
50 MILTON DR, CHESTER TOWNSHIP, PA, 19013
Parent company: 3M CO
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 | Copper | Copper compounds | Total (lbs) | ||
| 2022 | — | 15 | — | 15 | ||
| 2021 | — | 14 | — | 14 | ||
| 2019 | — | 11 | — | 11 | ||
| 2017 | — | 16 | — | 16 | ||
| 2014 | — | 16 | — | 16 | ||
| 2013 | — | 13 | — | 13 | ||
| 2012 | — | 22 | — | 22 | ||
| 2011 | — | 57 | — | 57 | ||
| 2010 | — | 64 | — | 64 | ||
| 2009 | — | 24 | — | 24 | ||
| 2008 | — | — | 41 | 41 | ||
| 2007 | — | — | 51 | 51 | ||
| 2006 | — | — | 47 | 47 | ||
| 2005 | — | — | 12 | 12 | ||
| 2004 | — | — | 12 | 12 | ||
| 2001 | 676 | — | — | 676 | ||
| 2000 | 816 | — | — | 816 | ||
| 1999 | 798 | — | — | 798 | ||
| 1998 | 699 | — | — | 699 | ||
| 1997 | 1,249 | — | — | 1,249 | ||
| 1996 | 893 | 314 | — | 1,207 | ||
| 1995 | 755 | — | — | 755 | ||
| 1994 | 755 | — | — | 755 | ||
| 1993 | 250 | — | — | 250 | ||
▎ 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.