Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUPERIOR MOLD & IRON SUPERIOR MOLD & IRON DIV
RAILROAD ST, PENN, PA, 15675
Parent company: SHENANGO GROUP INC
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 | Methanol | Manganese | Phenol | Total (lbs) | |
| 1991 | 31,750 | 34,000 | 7,650 | 250 | 73,650 | |
| 1990 | 51,250 | 31,000 | 6,159 | 250 | 88,659 | |
| 1989 | 260 | — | — | — | 260 | |
▎ 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.