Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
GENERAL DYNAMICS MISSION SYSTEMS INC.
150 JOHNSTON RD, MARION, VA, 24354
Parent company: GENERAL DYNAMICS 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 | Methyl ethyl ketone | Acetone | Dichloromethane | Methyl isobutyl ketone | Xylene (mixed isomers) | Total (lbs) |
| 2016 | — | — | — | 19,300 | — | 19,300 |
| 2006 | — | — | — | 9,100 | — | 9,108 |
| 2005 | — | — | — | — | — | 1,765 |
| 2004 | — | — | — | 9,183 | 15,333 | 33,799 |
| 2003 | 44,086 | — | 11,565 | — | — | 55,651 |
| 2002 | 43,286 | — | 13,469 | — | — | 56,755 |
| 2001 | 37,396 | — | 9,385 | — | — | 46,781 |
| 2000 | 119,000 | — | — | — | — | 119,000 |
| 1999 | 32,000 | — | — | — | — | 32,000 |
| 1998 | 32,000 | — | 19,000 | 13,527 | 11,000 | 86,527 |
| 1997 | 108,000 | — | 19,409 | — | — | 127,409 |
| 1996 | 59,793 | — | 22,000 | 8,900 | 14,595 | 137,110 |
| 1995 | 128,295 | — | 16,605 | — | — | 170,600 |
| 1994 | 71,905 | — | — | — | — | 71,905 |
| 1993 | 30,000 | 34,000 | — | — | — | 64,000 |
| 1992 | 86,171 | 25,158 | — | — | 7,526 | 118,862 |
| 1991 | 142,900 | 45,900 | 25,966 | — | — | 214,766 |
| 1990 | 120,120 | 80,080 | 24,552 | — | — | 224,752 |
| 1989 | 184,354 | 46,093 | — | 6,894 | — | 248,693 |
| 1988 | — | — | — | 21,112 | — | 21,112 |
| 1987 | — | — | — | — | — | 35,000 |
▎ 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.