Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ARNOLD MAGNETIC TECHNOLOGIES - ARNOLD ENGINEERING
300 N W ST, MARENGO, IL, 60152
Parent company: ARNOLD MAGNETIC TECHNOLOGIES CORP
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 | Phosphoric acid | 1,1,1-Trichloroethane | Chlorine | Acetone | 1-Bromopropane | Total (lbs) |
| 2023 | — | — | — | — | 1,500 | 1,898 |
| 2022 | — | — | — | — | 9,707 | 10,117 |
| 2021 | — | — | — | — | 16,371 | 16,600 |
| 2020 | — | — | — | — | 17,915 | 18,200 |
| 2019 | — | — | — | — | 23,600 | 23,858 |
| 2018 | — | — | — | — | 25,299 | 25,586 |
| 2017 | — | — | — | — | 14,758 | 15,064 |
| 2016 | — | — | — | — | 8,629 | 8,928 |
| 2015 | — | — | — | — | — | 192 |
| 2014 | — | — | — | — | — | 212 |
| 2013 | — | — | — | — | — | 230 |
| 2012 | — | — | — | — | — | 427 |
| 2011 | — | — | — | — | — | 837 |
| 2010 | — | — | — | — | — | 801 |
| 2009 | — | — | — | — | — | 560 |
| 2008 | — | — | — | — | — | 1,166 |
| 2007 | — | — | — | — | — | 1,353 |
| 2006 | — | — | — | — | — | 2,101 |
| 2005 | — | — | — | — | — | 1,053 |
| 2004 | — | — | — | — | — | 989 |
| 2003 | — | — | — | — | — | 1,250 |
| 2002 | — | — | — | — | — | 1,260 |
| 2001 | — | — | — | — | — | 1,260 |
| 2000 | — | — | — | — | — | 1,515 |
| 1999 | — | — | — | — | — | 5,310 |
| 1998 | 250 | — | — | — | — | 7,260 |
| 1997 | 500 | — | — | — | — | 2,718 |
| 1996 | 500 | — | — | — | — | 2,718 |
| 1995 | 250 | — | — | — | — | 4,705 |
| 1994 | 250 | — | 500 | — | — | 5,745 |
| 1993 | 250 | 14,536 | 500 | 755 | — | 16,541 |
| 1992 | 250 | 28,495 | 500 | 11,234 | — | 47,385 |
| 1991 | 250 | 59,713 | 250 | 22,442 | — | 157,996 |
| 1990 | 138,320 | 65,444 | 45,700 | 42,991 | — | 326,503 |
| 1989 | 82,750 | 86,724 | 45,250 | 21,160 | — | 250,583 |
| 1988 | 82,250 | 46,931 | 54,250 | 69,432 | — | 270,356 |
| 1987 | — | — | 65,250 | — | — | 65,250 |
▎ 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.