Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
RAYTHEON CO, ELECTRONIC COMPONENTS OPS
190 WILLOW ST, WALTHAM, MA, 02254
Parent company: RAYTHEON CO
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 | Methanol | 1,1,1-Trichloroethane | Trichloroethylene | Tetrachloroethylene | Freon 113 (CFC-113) | Total (lbs) |
| 1992 | 19,200 | 44,000 | — | — | 11,300 | 78,831 |
| 1991 | 8,100 | 27,200 | — | — | 10,100 | 49,735 |
| 1990 | 20,070 | 17,428 | 21,365 | — | 8,140 | 73,853 |
| 1989 | 46,558 | 17,164 | 62,857 | 13,750 | 8,605 | 172,354 |
| 1988 | 45,595 | — | — | 61,608 | 13,750 | 125,953 |
| 1987 | — | — | — | — | — | 26,045 |
▎ 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.