Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
GKN SINTER METALS
112 N HARDING ST, WORCESTER, MA, 01604
Parent company: GKN SINTER METALS
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 | Tetrachloroethylene | Ammonia | 1,1,1-Trichloroethane | Zinc compounds | Copper | Total (lbs) |
| 2007 | — | — | — | — | 99 | 279 |
| 2006 | — | — | — | — | — | 226 |
| 2005 | — | — | — | — | — | 254 |
| 2004 | — | — | — | — | 134 | 374 |
| 2003 | — | — | — | — | 162 | 413 |
| 2002 | — | 905 | — | 1,095 | 215 | 2,532 |
| 2001 | — | 1,158 | — | — | 169 | 1,596 |
| 2000 | — | — | — | 1,162 | 283 | 1,937 |
| 1999 | — | 1,438 | — | 2,524 | 477 | 5,323 |
| 1998 | — | 1,472 | — | 1,297 | 351 | 3,617 |
| 1997 | — | 3,057 | — | 1,754 | 345 | 5,616 |
| 1996 | — | 6,641 | — | 1,148 | 393 | 8,634 |
| 1995 | — | 6,705 | — | 1,194 | 354 | 8,652 |
| 1994 | — | 5,643 | — | 1,874 | 525 | 8,362 |
| 1993 | — | 5,768 | — | 2,016 | 487 | 8,542 |
| 1992 | — | 5,830 | — | 1,796 | 533 | 8,306 |
| 1991 | 8,100 | 6,100 | — | 2,200 | 625 | 17,205 |
| 1990 | 20,000 | 5,900 | — | 2,810 | 750 | 29,710 |
| 1989 | 29,400 | 5,920 | 17,400 | 3,900 | 750 | 57,510 |
| 1988 | 45,000 | — | 20,000 | — | 1,000 | 66,000 |
▎ 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.