Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CAPITOL CIRCUITS CORP
24 DENBY RD, BOSTON, MA, 021341688
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) | Ammonia | Copper | Total (lbs) | ||
| 2001 | 250 | — | — | 250 | ||
| 2000 | 250 | — | — | 250 | ||
| 1995 | — | 4,600 | — | 4,600 | ||
| 1993 | 250 | — | — | 250 | ||
| 1992 | 2,931 | — | — | 2,931 | ||
| 1991 | 2,931 | — | — | 2,931 | ||
| 1990 | 3,231 | — | — | 3,231 | ||
| 1989 | 3,837 | — | — | 3,837 | ||
| 1987 | 3,837 | — | 250 | 4,087 | ||
▎ 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.