Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUMCO USA
49070 MILMONT DR, FREMONT, CA, 94538
Parent company: SUMCO USA CORP
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 | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | ||||
| 2002 | 265 | 265 | ||||
| 2001 | 15 | 15 | ||||
| 2000 | 15 | 15 | ||||
| 1999 | 15 | 15 | ||||
| 1998 | 15 | 15 | ||||
| 1997 | 4 | 4 | ||||
| 1996 | 4 | 4 | ||||
| 1995 | 3 | 3 | ||||
| 1994 | 3 | 3 | ||||
| 1993 | 2 | 2 | ||||
| 1992 | 2 | 2 | ||||
▎ 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.