Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MIDWEST ALLOY
103 N COOL SPRINGS RD, O FALLON, MO, 63366
Parent company: ST LOUIS STEEL CASTINGS
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 | Chromium | Nickel | Manganese | Total (lbs) | ||
| 1998 | 814 | — | — | 814 | ||
| 1997 | 1,000 | — | — | 1,000 | ||
| 1995 | 500 | 500 | — | 1,000 | ||
| 1994 | 250 | 250 | 250 | 750 | ||
| 1993 | 700 | 240 | — | 940 | ||
| 1992 | 900 | — | — | 900 | ||
| 1991 | 850 | — | — | 850 | ||
▎ 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.