Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTHROP AIRCRAFT K-8 FACILITY
540 HAWAII AVE, TORRANCE, CA, 90503
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 | Tetrachloroethylene | Xylene (mixed isomers) | Toluene | Total (lbs) | ||
| 1991 | 187,400 | 14,200 | 11,600 | 213,200 | ||
| 1990 | 202,000 | — | — | 202,000 | ||
| 1989 | 196,000 | 14,200 | — | 210,200 | ||
▎ 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.