Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUPERIOR PROCESS CO INC
4 TRIPP ST, FRAMINGHAM, MA, 01701
Parent company: NA
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 | Xylene (mixed isomers) | Toluene | Total (lbs) | |||
| 2000 | — | 11,896 | 11,896 | |||
| 1999 | — | 10,140 | 10,140 | |||
| 1998 | — | 11,679 | 11,679 | |||
| 1997 | — | 11,744 | 11,744 | |||
| 1995 | 14,089 | — | 14,089 | |||
| 1994 | 16,621 | — | 16,621 | |||
| 1993 | 10,948 | — | 10,948 | |||
| 1992 | 11,736 | — | 11,736 | |||
| 1990 | 10,653 | — | 10,653 | |||
| 1989 | 20,043 | — | 20,043 | |||
| 1987 | 18,656 | 2,074 | 20,730 | |||
▎ 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.