Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SWAN POND RD, CALVERTON, NY, 11933
Parent company: NORHROP GRUMMAN CORP
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Methyl ethyl ketone | Dichloromethane | Freon 113 (CFC-113) | Total (lbs) | |
| 1994 | 6,999 | — | — | — | 6,999 | |
| 1993 | 24,157 | 15,117 | — | — | 39,274 | |
| 1992 | 33,859 | 3,628 | — | — | 37,487 | |
| 1991 | 50,041 | 14,768 | 10,867 | 10,357 | 86,033 | |
| 1990 | 16,685 | 40,046 | 20,370 | — | 77,101 | |
| 1989 | 66,900 | 33,900 | 60,790 | — | 161,590 | |
| 1988 | 67,200 | 35,200 | 43,200 | — | 145,600 | |
▎ 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.