Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CAPSTONE PRECISION GROUP
4051 N HIGLEY RD, MESA, AZ, 85215
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
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 | Copper compounds | Sodium azide | Chromium | Nickel | Manganese | Total (lbs) |
| 2003 | 15 | 26 | — | — | — | 41 |
| 2002 | 227 | 479 | — | — | — | 706 |
| 2001 | 942 | 1,493 | — | — | — | 2,495 |
| 2000 | 1,009 | 1,589 | — | — | — | 2,658 |
| 1999 | 1,133 | 1,765 | — | — | — | 2,958 |
| 1998 | 1,370 | 2,100 | — | — | — | 3,500 |
| 1997 | 1,435 | 2,155 | 5 | 5 | 5 | 3,605 |
| 1996 | 1,315 | 2,000 | 5 | 5 | 5 | 3,330 |
| 1995 | 1,595 | 2,850 | 10 | 10 | 10 | 4,475 |
| 1994 | 1,980 | — | 10 | 10 | 10 | 2,010 |
| 1993 | 1,703 | — | 500 | 500 | 500 | 3,203 |
| 1992 | 1,168 | — | 5 | 5 | — | 1,178 |
| 1991 | 1,250 | — | — | — | — | 1,255 |
| 1990 | 755 | — | — | — | — | 755 |
| 1989 | 750 | — | — | — | — | 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.