Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
4000 W VALLEY BLVD, POMONA, CA, 917693060
Parent company: NA
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Hydrogen fluoride | Nitric acid | Aluminum oxide (fibrous forms) | Total (lbs) | |
| 2000 | — | 250 | 250 | — | 500 | |
| 1999 | — | 250 | 250 | — | 500 | |
| 1998 | — | 250 | 250 | — | 500 | |
| 1996 | — | 750 | 1,125 | — | 1,875 | |
| 1995 | — | 750 | 750 | — | 1,500 | |
| 1994 | — | 500 | 730 | — | 1,230 | |
| 1993 | — | 420 | 700 | — | 1,120 | |
| 1992 | — | 520 | 610 | — | 1,130 | |
| 1991 | — | 460 | 540 | — | 1,000 | |
| 1990 | — | 18 | 64 | — | 82 | |
| 1989 | 5,900 | 1,300 | 330 | 500 | 8,030 | |
| 1988 | 7,600 | 1,300 | — | 500 | 9,400 | |
▎ 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.