Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
AMERICAN SILICON TECHNOLOGIES
100 S 4TH ST, ROCK ISLAND, WA, 98850
Parent company: NA
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 | Copper | Propylene | Phosphoric acid | Total |
|---|---|---|---|---|
| 1997 | 776 | — | — | 776 |
| 1996 | 834 | — | — | 834 |
| 1995 | 10,920 | 311 | 117 | 11,348 |
| 1994 | 11,556 | 403 | — | 11,959 |
| 1993 | 9,947 | 375 | — | 10,322 |