Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PCC MERRIMAN
100 INDUSTRIAL PARK RD, HINGHAM, MA, 02043
Parent company: PCC SPECIALTY PRODS 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 | Copper | 1,1,1-Trichloroethane | Methanol | Ammonia | Total (lbs) | |
| 1997 | 250 | — | — | — | 250 | |
| 1996 | 150 | — | 5 | — | 155 | |
| 1995 | 250 | — | 5 | 5 | 260 | |
| 1994 | 5 | — | 5 | 5 | 15 | |
| 1993 | 5 | — | 7 | 5 | 17 | |
| 1992 | 5 | — | 7 | 5 | 17 | |
| 1991 | 15 | — | 7 | 5 | 27 | |
| 1990 | 5 | — | 65 | 10 | 80 | |
| 1989 | — | 250 | — | — | 250 | |
▎ 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.