Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DU PONT POMONA PLANT
1000 WALNUT AVE, POMONA, CA, 91766
Parent company: E I DU PONT DE NEMOURS & CO INC
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) | Trichlorofluoromethane (CFC-11) | Dichlorodifluoromethane (CFC-12) | Dichlorotetrafluoroethane (CFC-114) | Total (lbs) | |
| 1992 | 2,300 | 2,500 | 1,200 | 1,000 | 7,000 | |
| 1991 | 4,600 | 4,500 | 1,700 | 1,500 | 12,300 | |
| 1990 | 10,800 | — | — | — | 10,800 | |
| 1989 | 200 | — | — | — | 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.