Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HUGHES TRAINING INC
1200 E SAN BERNARDINO RD, WEST COVINA, CA, 91790
Parent company: GMC
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 | Freon 113 (CFC-113) | Methyl ethyl ketone | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1991 | 3,300 | 300 | 150 | 100 | 3,850 | |
| 1990 | 8,200 | — | — | — | 8,200 | |
| 1989 | 9,517 | — | — | — | 9,517 | |
| 1988 | 9,778 | — | — | — | 9,778 | |
| 1987 | 13,120 | — | — | — | 13,120 | |
▎ 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.