Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MICROSEMI CORP
8700 E THOMAS RD, SCOTTSDALE, AZ, 85251
Parent company: MICROSEMI CORP
Carcinogen
PBT
— 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 | Freon 113 (CFC-113) | 1,1,1-Trichloroethane | Xylene (mixed isomers) | 1,2,4-Trichlorobenzene | Naphthalene | Total (lbs) |
| 2010 | — | — | 574 | — | — | 1,790 |
| 2009 | — | — | 2,295 | — | — | 3,723 |
| 2008 | — | — | 3,468 | — | — | 5,918 |
| 2007 | — | — | 4,841 | — | — | 5,069 |
| 2006 | — | — | 8,574 | — | 12,068 | 20,966 |
| 2005 | — | — | — | — | — | 205 |
| 2004 | — | — | — | — | — | 104 |
| 2003 | — | — | — | — | — | 62 |
| 2002 | — | — | — | — | — | 93 |
| 2001 | — | — | — | — | — | 94 |
| 2000 | — | — | — | — | — | 101 |
| 1999 | — | — | — | — | — | 83 |
| 1998 | — | — | — | — | — | 14 |
| 1997 | — | — | — | 5,249 | — | 5,264 |
| 1996 | — | — | — | 6,547 | — | 6,797 |
| 1995 | — | — | — | 3,545 | — | 3,795 |
| 1994 | — | — | — | — | — | 255 |
| 1993 | — | — | — | — | — | 505 |
| 1992 | 7,757 | 11,118 | — | — | — | 19,380 |
| 1991 | 11,775 | 14,598 | — | — | — | 26,388 |
| 1990 | 9,068 | 10,122 | — | — | — | 19,210 |
| 1989 | 17,504 | 8,396 | — | — | — | 32,713 |
| 1988 | — | — | — | — | — | 4,135 |
| 1987 | 56,978 | — | — | — | — | 56,978 |
▎ 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.