Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
FAIRCHILD SEMICONDUCTOR
125 CRESTWOOD DR, MOUNTAIN TOP, PA, 18707
Parent company: ON SEMICONDUCTOR CORP
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 | 1,1,1-Trichloroethane | Xylene (mixed isomers) | 1,2-Dichlorobenzene | Tetrachloroethylene | Ammonia | Total (lbs) |
| 2024 | — | — | — | — | — | 1,967 |
| 2023 | — | — | — | — | — | 1,515 |
| 2022 | — | — | — | — | — | 1,491 |
| 2021 | — | — | — | — | — | 1,717 |
| 2020 | — | — | — | — | — | 1,451 |
| 2019 | — | — | — | — | — | 2,000 |
| 2018 | — | — | — | — | — | 2,152 |
| 2017 | — | — | — | — | — | 2,188 |
| 2016 | — | — | — | — | — | 2,325 |
| 2015 | — | — | — | — | — | 2,290 |
| 2014 | — | — | — | — | — | 1,818 |
| 2013 | — | — | — | — | — | 1,577 |
| 2012 | — | — | — | — | — | 1,750 |
| 2011 | — | — | — | — | — | 1,520 |
| 2010 | — | — | — | — | — | 1,520 |
| 2009 | — | — | — | — | — | 1,520 |
| 2008 | — | — | — | — | — | 2,020 |
| 2007 | — | — | — | — | — | 2,020 |
| 2006 | — | — | — | — | — | 1,368 |
| 2005 | — | — | — | — | — | 1,366 |
| 2004 | — | — | — | — | — | 557 |
| 2003 | — | — | — | — | — | 2,720 |
| 2002 | — | — | — | — | — | 2,410 |
| 2000 | — | — | — | — | 11,685 | 15,868 |
| 1999 | — | — | — | — | 11,685 | 14,376 |
| 1998 | — | 15,000 | — | — | 535 | 17,303 |
| 1997 | — | 21,000 | — | — | 470 | 23,432 |
| 1996 | — | 24,000 | — | — | — | 31,039 |
| 1995 | — | 20,000 | — | — | — | 27,418 |
| 1994 | — | 23,000 | — | — | 890 | 30,384 |
| 1993 | 18,000 | 41,000 | — | — | 6,400 | 70,669 |
| 1992 | 45,000 | 62,000 | — | — | 5,300 | 118,587 |
| 1991 | 71,000 | 78,000 | 10,000 | 10,000 | 7,300 | 218,754 |
| 1990 | 74,000 | 60,000 | 24,000 | 24,000 | 400 | 227,459 |
| 1989 | 230,000 | 95,000 | 35,000 | 35,000 | 140 | 430,950 |
| 1988 | 200,000 | — | 34,000 | 34,000 | 250 | 296,400 |
| 1987 | 130,000 | — | — | — | — | 165,850 |
▎ 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.