Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
WESTAK NORTH
14815 NE 40TH ST, REDMOND, WA, 98052
Parent company: WESTAK INC
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Ammonia | Nitric acid | Copper | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total |
|---|---|---|---|---|---|
| 1994 | 2,250 | — | — | 10 | 2,260 |
| 1993 | 2,250 | 255 | — | 10 | 2,515 |
| 1992 | 2,250 | 255 | — | 10 | 2,515 |
| 1991 | 2,250 | 255 | — | 10 | 2,515 |
| 1990 | 2,250 | 255 | — | 10 | 2,515 |
| 1989 | — | 500 | — | — | 500 |
| 1988 | 500 | 500 | 250 | — | 1,250 |
| 1987 | — | 500 | — | — | 500 |