Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
O'FALLON CASTING
600 CANNONBALL LN, O FALLON, MO, 63366
Parent company: NA
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 | Ammonia | 1,1,1-Trichloroethane | Hydrogen fluoride | Nitric acid | Copper | Total (lbs) |
| 2024 | 2,100 | — | — | 110 | — | 2,210 |
| 2023 | 2,240 | — | — | 110 | — | 2,350 |
| 2022 | 2,240 | — | 144 | 110 | — | 2,494 |
| 2021 | 1,960 | — | 144 | 110 | — | 2,214 |
| 2020 | 2,400 | — | 144 | 110 | — | 2,654 |
| 2019 | 2,100 | — | 144 | 110 | — | 2,354 |
| 2018 | 2,100 | — | 144 | 110 | — | 2,354 |
| 2017 | 1,800 | — | 144 | 110 | — | 2,054 |
| 2016 | 2,250 | — | 144 | 110 | — | 2,504 |
| 2015 | 2,250 | — | 144 | 110 | — | 2,504 |
| 2014 | 1,800 | — | 144 | 110 | — | 2,054 |
| 2013 | 2,009 | — | 144 | 110 | — | 2,263 |
| 2012 | 2,472 | — | 144 | 110 | — | 2,726 |
| 2011 | 1,800 | — | 144 | 110 | — | 2,054 |
| 2010 | 1,955 | — | 144 | 110 | — | 2,209 |
| 2009 | 4,105 | — | 144 | 110 | — | 4,359 |
| 2008 | 3,053 | — | 144 | 110 | 10 | 3,317 |
| 2007 | 2,796 | — | — | — | 40 | 2,836 |
| 2006 | 19,323 | — | — | — | 40 | 19,363 |
| 2005 | 12,417 | — | — | — | 40 | 12,457 |
| 2004 | 27,396 | — | — | — | — | 27,396 |
| 2003 | 29,195 | — | — | — | — | 29,195 |
| 2002 | 27,908 | — | — | — | — | 27,908 |
| 2001 | 26,816 | — | — | — | — | 26,816 |
| 2000 | 30,864 | — | — | — | — | 30,864 |
| 1999 | 28,866 | — | — | — | — | 28,866 |
| 1998 | 22,881 | — | — | — | — | 22,881 |
| 1997 | 20,265 | — | — | — | — | 20,265 |
| 1996 | 19,425 | — | — | — | — | 19,425 |
| 1995 | 19,723 | — | — | — | — | 19,723 |
| 1994 | 18,997 | — | 1,737 | — | — | 20,734 |
| 1993 | 18,154 | — | 1,737 | — | — | 19,891 |
| 1992 | 12,133 | — | 250 | — | — | 12,383 |
| 1991 | 14,238 | 6,033 | 5 | — | — | 20,276 |
| 1990 | 14,000 | 5,280 | 5 | — | 5 | 19,290 |
| 1989 | 16,000 | 6,520 | — | — | 250 | 22,770 |
| 1987 | — | 2,605 | — | — | — | 2,605 |
▎ 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.