Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUPERTEX INC
1225 BORDEAUX DR, SUNNYVALE, CA, 94088
Parent company: NA
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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Phosphoric acid | Total (lbs) | |||
| 1999 | 2,650 | — | 2,650 | |||
| 1997 | 2,300 | 100 | 2,400 | |||
| 1996 | 2,900 | — | 2,900 | |||
| 1995 | 3,000 | — | 3,000 | |||
| 1994 | 2,900 | — | 2,900 | |||
| 1993 | 3,800 | — | 3,800 | |||
| 1992 | 3,300 | — | 3,300 | |||
| 1991 | 5,800 | — | 5,800 | |||
▎ 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.