Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARTIN MARIETTA DEFENSE SYSTEMS
100 PLASTICS AVE, PITTSFIELD, MA, 01201
Parent company: MARTIN MARIETTA CORP
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 | Freon 113 (CFC-113) | 1,1,1-Trichloroethane | Toluene | Xylene (mixed isomers) | Dichloromethane | Total (lbs) |
| 1993 | 6,200 | 6,700 | — | — | — | 12,900 |
| 1992 | 27,600 | 25,900 | 1,380 | — | 360 | 55,690 |
| 1991 | 28,100 | 22,300 | 1,040 | — | 300 | 52,480 |
| 1990 | 44,300 | 31,000 | 1,470 | 2,555 | 1,100 | 81,180 |
| 1989 | 89,540 | 42,060 | — | — | — | 133,600 |
▎ 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.