Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
LITTON SYS INC INTEGRATED SYS DIV
19601 NORDHOFF ST, NORTHRIDGE, CA, 91324
Parent company: NORTHROP GRUMMAN CORP
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) | Total (lbs) | ||||
| 1993 | 16,273 | 16,273 | ||||
| 1992 | 29,177 | 29,177 | ||||
| 1991 | 37,524 | 37,524 | ||||
| 1990 | 43,000 | 43,000 | ||||
| 1989 | 5,000 | 5,000 | ||||
| 1988 | 38,400 | 38,400 | ||||
▎ 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.