Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KOMAG INC BUILDINGS 2 & 4
487 S HILLVIEW DR, MILPITAS, CA, 95035
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 | Methanol | Freon 113 (CFC-113) | Nitric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1997 | 1,523 | — | — | — | 1,523 | |
| 1996 | 2,360 | — | — | — | 2,360 | |
| 1995 | 8,170 | — | — | — | 8,170 | |
| 1994 | 1,132 | — | — | — | 1,132 | |
| 1993 | 90,131 | 5,355 | — | — | 95,486 | |
| 1992 | 6,228 | 5,096 | — | — | 11,324 | |
| 1991 | 118,603 | 46,345 | — | — | 164,948 | |
| 1990 | — | — | 750 | 250 | 1,000 | |
| 1989 | — | — | 730 | 98 | 828 | |
| 1988 | — | — | 730 | — | 730 | |
| 1987 | — | — | 730 | — | 730 | |
▎ 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.