Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HARSCO CO HECKETT MULTISERV PLANT 4
C/O COPPERWELD STEEL MAIN GATE, WARREN, OH, 44482
Parent company: HARSCO CORP
Carcinogen
PBT
— 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 | Manganese | Aluminum oxide (fibrous forms) | Manganese compounds | Chromium | Nickel | Total (lbs) |
| 1998 | 114 | — | — | — | — | 114 |
| 1997 | 128 | — | — | 11 | 38 | 177 |
| 1996 | 145 | — | — | — | — | 145 |
| 1995 | 142 | — | — | — | — | 142 |
| 1994 | 113 | — | — | 5 | 2 | 120 |
| 1993 | 134 | — | — | 28 | 11 | 178 |
| 1992 | 131 | — | — | 6 | 2 | 139 |
| 1991 | 160 | — | — | 28 | 11 | 204 |
| 1990 | 165 | — | — | 51 | 19 | 245 |
| 1989 | — | 250 | 250 | — | — | 500 |
| 1988 | — | 250 | 250 | — | — | 500 |
▎ 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.