Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ZILOG INC
1551 11TH AVE N, NAMPA, ID, 836876779
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) | Acetone | Methyl ethyl ketone | N-Methyl-2-pyrrolidone | Phosphoric acid | Total (lbs) |
| 2003 | 9,761 | — | 3,646 | 4,221 | — | 17,628 |
| 2002 | 15,721 | — | 4,190 | 6,560 | — | 26,471 |
| 2001 | 26,800 | — | — | 250 | — | 27,805 |
| 2000 | 39,300 | — | 3,900 | 6,400 | — | 50,955 |
| 1999 | 40,600 | — | 1,100 | 3,500 | — | 46,450 |
| 1998 | 10,000 | — | 2,000 | 6,000 | 6,450 | 25,800 |
| 1997 | 11,600 | — | 3,200 | 2,000 | 6,650 | 24,900 |
| 1996 | 12,000 | — | 3,605 | 2,305 | 4,650 | 24,310 |
| 1995 | 3,550 | — | 10,005 | — | 920 | 14,975 |
| 1994 | 8,500 | — | 4,905 | — | 4,900 | 24,265 |
| 1993 | 1,690 | 20,250 | — | — | 500 | 24,950 |
| 1992 | 935 | 3,722 | — | — | 1,008 | 11,619 |
| 1991 | 1,241 | 9,966 | — | — | 754 | 21,193 |
| 1990 | 1,241 | 22,296 | — | — | 754 | 46,101 |
| 1989 | 1,000 | 24,430 | — | — | 1,000 | 52,078 |
| 1988 | — | 12,000 | — | — | — | 12,750 |
| 1987 | 250 | 250 | — | — | — | 750 |
▎ 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.