Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TRIUMPH AEROSPACE STRUCTURES
3901 JACK NORTHROP AVE, HAWTHORNE, CA, 90250
Parent company: TRIUMPH GROUP INC
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 | 1,1,1-Trichloroethane | Tetrachloroethylene | Methyl ethyl ketone | Certain glycol ethers | Freon 113 (CFC-113) | Total (lbs) |
| 2017 | — | — | — | — | — | 726 |
| 2016 | — | — | — | — | — | 726 |
| 2015 | — | — | — | — | — | 773 |
| 2002 | — | — | — | — | — | 19 |
| 2001 | — | 50,897 | — | — | — | 50,911 |
| 2000 | — | 40,379 | — | — | — | 42,246 |
| 1999 | — | 23,947 | — | — | — | 23,960 |
| 1998 | — | 70,981 | 18,018 | — | — | 89,113 |
| 1997 | — | 70,433 | 17,140 | — | — | 87,628 |
| 1996 | — | 44,204 | 11,337 | — | — | 55,604 |
| 1995 | 186,240 | 41,820 | 11,140 | 10,090 | — | 249,502 |
| 1994 | 213,400 | 48,800 | 13,400 | 16,100 | — | 301,928 |
| 1993 | 311,000 | 77,000 | 19,700 | 6,900 | — | 428,980 |
| 1992 | 372,000 | 86,400 | 18,900 | 27,800 | — | 505,206 |
| 1991 | 507,000 | 87,900 | 35,500 | 29,300 | — | 681,672 |
| 1990 | 431,600 | 219,000 | 24,650 | 14,250 | — | 737,728 |
| 1989 | 214,900 | 185,200 | 17,100 | — | 18,600 | 507,467 |
| 1988 | 696,000 | 249,000 | — | — | — | 989,650 |
| 1987 | — | — | — | — | 45,000 | 47,000 |
▎ 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.