Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
RITCHIE INDUSTRIES INC.
120 S MAIN ST, CONRAD, IA, 50621
Parent company: NA
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 | Nickel | Manganese | Chromium | 4,4'-Methylenedi(phenyl isocyanate) | Diisocyanates | Total (lbs) |
| 1996 | 5 | 5 | 5 | — | 5 | 20 |
| 1995 | 5 | 5 | 5 | — | 5 | 20 |
| 1994 | 5 | 5 | 5 | 5 | — | 20 |
| 1993 | 10 | 5 | — | 5 | — | 25 |
| 1992 | 10 | 5 | — | — | — | 20 |
| 1991 | 10 | 5 | — | — | — | 15 |
| 1990 | 5 | 5 | — | — | — | 10 |
| 1989 | 5 | 5 | — | — | — | 10 |
| 1988 | 5 | — | — | — | — | 5 |
▎ 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.