Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PROTOTRON CIRCUITS INC
15225 NE 95TH ST, REDMOND, WA, 98052
Parent company: PROTOTRON INC
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 | Ammonia | Certain glycol ethers | Nitric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1994 | — | — | — | 10 | 10 | |
| 1993 | 16,250 | 2,070 | 1,500 | 10 | 19,830 | |
| 1992 | 15,250 | 3,600 | — | 10 | 18,860 | |
| 1991 | — | 4,600 | — | 10 | 4,610 | |
| 1989 | — | — | 250 | — | 250 | |
▎ 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.