Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MICREL LLC
1849 FORTUNE DRIVE, SAN JOSE, CA, 95131
Parent company: MICROCHIP TECHNOLOGY 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 | Hydrogen fluoride | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Acetone | Certain glycol ethers | N-Methyl-2-pyrrolidone | Total (lbs) |
| 2016 | 778 | 311 | — | — | 372 | 1,461 |
| 2015 | 1,036 | 332 | — | — | 206 | 1,574 |
| 2014 | 839 | 545 | — | — | 215 | 1,663 |
| 2013 | 989 | 527 | — | — | 268 | 1,852 |
| 2012 | 1,017 | 647 | — | — | 540 | 2,270 |
| 2011 | 975 | 666 | — | — | 655 | 2,358 |
| 2010 | 750 | 250 | — | — | — | 1,000 |
| 2009 | 523 | 250 | — | — | — | 773 |
| 2008 | 5 | 250 | — | — | 10 | 265 |
| 2007 | 5 | 250 | — | — | 5 | 260 |
| 2006 | 5 | 250 | — | — | 250 | 505 |
| 2005 | 5 | 250 | — | — | 250 | 505 |
| 2004 | 250 | 250 | — | — | 250 | 750 |
| 2003 | 250 | 250 | — | — | 250 | 750 |
| 2002 | 250 | 750 | — | — | 250 | 1,250 |
| 2001 | — | — | — | — | 250 | 250 |
| 1992 | — | — | — | — | — | 8 |
| 1991 | — | — | 3,856 | 68 | — | 3,941 |
| 1990 | 255 | — | 1,000 | 5,050 | — | 9,810 |
| 1989 | — | 1,200 | 750 | — | — | 1,950 |
▎ 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.