Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CATERPILLAR INC
BOX 348 RT 31S, AURORA, IL, 60507
Parent company: CATERPILLAR 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 | Xylene (mixed isomers) | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Propylene | Toluene | 1,2,4-Trimethylbenzene | Total (lbs) |
| 2019 | — | — | — | — | — | 9 |
| 2018 | — | — | — | — | — | 79 |
| 2017 | — | — | — | — | — | 176 |
| 2016 | — | — | — | — | — | 166 |
| 2015 | — | — | — | — | — | 198 |
| 2014 | — | — | — | — | — | 204 |
| 2013 | 755 | — | — | — | 1,101 | 1,877 |
| 2012 | 2,668 | — | — | — | 3,567 | 6,485 |
| 2011 | 12,127 | — | — | — | 16,819 | 28,946 |
| 2010 | 5,779 | — | — | — | 6,389 | 12,173 |
| 2009 | 2,475 | — | — | — | 2,239 | 4,774 |
| 2008 | 20,456 | — | — | — | 16,905 | 37,366 |
| 2007 | 14,205 | — | 2,536 | 1,632 | 14,405 | 33,028 |
| 2006 | 20,501 | — | 3,570 | 1,650 | 36,815 | 62,997 |
| 2005 | 21,800 | — | 2,500 | — | 30,105 | 62,989 |
| 2004 | 5,600 | — | 2,900 | — | 9,400 | 17,980 |
| 2003 | 10,725 | — | 3,000 | — | — | 13,810 |
| 2002 | 17,005 | — | 3,100 | — | — | 24,055 |
| 2001 | 11,505 | — | 2,700 | 500 | — | 14,955 |
| 2000 | 14,650 | — | 2,800 | 1,850 | — | 19,550 |
| 1999 | 26,050 | — | 4,500 | — | — | 31,050 |
| 1998 | 22,350 | — | 4,500 | 3,000 | — | 30,350 |
| 1997 | 55,500 | 75,000 | 2,000 | 2,600 | — | 136,697 |
| 1996 | 27,600 | 80,000 | 1,200 | 1,950 | — | 112,067 |
| 1995 | 24,250 | 62,200 | 5,600 | — | — | 100,650 |
| 1994 | 55,600 | 67,200 | 4,800 | — | — | 182,865 |
| 1993 | 52,600 | — | 1,700 | — | — | 54,807 |
| 1992 | 39,100 | 25,000 | 2,400 | — | — | 79,004 |
| 1991 | 72,200 | 49,300 | 2,500 | 10,000 | — | 210,806 |
| 1990 | 61,000 | — | 4,000 | 16,000 | — | 147,350 |
| 1989 | 38,500 | — | 4,600 | 9,800 | — | 95,639 |
| 1988 | — | — | — | 98,000 | — | 126,430 |
| 1987 | 9,000 | — | 110,000 | — | — | 119,000 |
▎ 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.