Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTHROP GRUMMAN SYSTEMS CORPORATION
3001 N AVIATION BLVD, MANHATTAN BEACH, CA, 90266
Parent company: NORTHROP GRUMMAN 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 | Acetone | Methanol | 1,1,1-Trichloroethane | Freon 113 (CFC-113) | Trichloroethylene | Total (lbs) |
| 2024 | — | 257 | — | — | — | 257 |
| 2023 | — | 250 | — | — | — | 250 |
| 2015 | — | 66 | — | — | — | 66 |
| 2012 | — | 89 | — | — | — | 90 |
| 2011 | — | 2,913 | — | — | — | 2,929 |
| 2010 | — | 3,453 | — | — | — | 3,469 |
| 2009 | — | 3,981 | — | — | — | 3,997 |
| 2008 | — | 3,338 | — | — | — | 3,353 |
| 2007 | — | 470 | — | — | — | 470 |
| 2006 | — | 1,341 | — | — | — | 1,341 |
| 2005 | — | 1,206 | — | — | — | 1,206 |
| 2004 | — | 1,093 | — | — | — | 1,742 |
| 2003 | — | 192 | — | — | — | 2,311 |
| 2002 | — | 1,410 | — | — | — | 4,024 |
| 2001 | — | 1,956 | — | — | — | 3,053 |
| 2000 | — | 2,596 | — | — | 1,402 | 9,167 |
| 1999 | — | 5,571 | — | — | 675 | 10,708 |
| 1998 | — | 8,045 | — | — | — | 18,091 |
| 1997 | — | 19,841 | — | — | — | 19,841 |
| 1996 | — | 15,788 | — | — | — | 15,788 |
| 1995 | — | 7,569 | — | — | — | 7,569 |
| 1993 | 64,265 | 8,146 | — | — | — | 72,411 |
| 1992 | 76,809 | — | — | 6,969 | — | 83,778 |
| 1991 | 79,800 | — | 1,176 | 17,214 | — | 107,662 |
| 1990 | 41,098 | — | 49,129 | 23,938 | — | 126,336 |
| 1989 | 180,304 | 32,144 | 22,751 | 12,144 | 21,325 | 268,668 |
| 1988 | — | 33,750 | 26,459 | 29,943 | — | 90,152 |
| 1987 | — | — | — | 5,319 | — | 5,319 |
▎ 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.