Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MICRO USPD INC
580 PLEASANT ST, WATERTOWN, MA, 024722408
Parent company: MICROSEMI 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 | 1,1,1-Trichloroethane | Xylene (mixed isomers) | Methanol | Trichloroethylene | Nitric acid | Total (lbs) |
| 2002 | — | — | — | — | — | 16 |
| 2001 | — | 3,390 | — | — | 559 | 3,957 |
| 2000 | — | 5,652 | — | — | 517 | 6,169 |
| 1999 | — | 4,813 | — | — | 465 | 5,278 |
| 1998 | — | 5,923 | — | — | 525 | 6,448 |
| 1997 | — | 6,547 | — | — | 255 | 6,802 |
| 1996 | — | 6,149 | — | — | 580 | 6,989 |
| 1995 | — | 11,237 | — | — | 755 | 11,992 |
| 1994 | — | 3,350 | 9,250 | 3,550 | 755 | 18,415 |
| 1993 | — | 6,505 | 11,050 | — | 255 | 19,565 |
| 1992 | 33,000 | 8,400 | 7,300 | — | 1,700 | 54,150 |
| 1991 | 46,000 | 13,000 | 10,600 | — | 1,250 | 75,350 |
| 1990 | 2,500 | — | 7,300 | — | 250 | 10,800 |
| 1989 | 250 | — | 3,400 | 5,600 | — | 10,000 |
| 1988 | — | — | 3,400 | 5,600 | — | 9,500 |
| 1987 | — | 250 | 4,660 | 3,200 | — | 8,110 |
▎ 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.