Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HOYA CORP USA
960 RINCON CIRCLE, SAN JOSE, CA, 95131
Parent company: HOYA CORP JAPAN
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) | Nitric acid | Total (lbs) | |||
| 1997 | — | 14,993 | 14,993 | |||
| 1996 | — | 26,818 | 26,818 | |||
| 1995 | — | 18,500 | 18,500 | |||
| 1994 | — | 16,300 | 16,300 | |||
| 1992 | 26,854 | — | 26,854 | |||
| 1991 | 21,730 | — | 21,730 | |||
| 1990 | 18,326 | — | 18,326 | |||
| 1989 | 12,632 | — | 12,632 | |||
| 1988 | 11,061 | — | 11,061 | |||
| 1987 | 5,105 | — | 5,105 | |||
▎ 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.