Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
VARIAN MEDICAL SYSTEMS
911 HANSEN WAY, PALO ALTO, CA, 94304
Parent company: VARIAN MEDICAL SYSTEMS
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 | 1,1,1-Trichloroethane | Freon 113 (CFC-113) | Acetone | Methanol | Nitric acid | Total (lbs) |
| 2018 | — | — | — | — | — | 2 |
| 2017 | — | — | — | — | — | 2 |
| 2016 | — | — | — | — | — | 2 |
| 2015 | — | — | — | — | — | 2 |
| 2014 | — | — | — | — | — | 2 |
| 2013 | — | — | — | — | — | 2 |
| 2012 | — | — | — | — | — | 2 |
| 2011 | — | — | — | — | — | 2 |
| 2010 | — | — | — | — | — | 2 |
| 2009 | — | — | — | — | — | 2 |
| 2008 | — | — | — | — | — | 2 |
| 2007 | — | — | — | — | — | 1 |
| 2006 | — | — | — | — | — | 1 |
| 2005 | — | — | — | — | — | 1 |
| 2004 | — | — | — | — | — | 2 |
| 2003 | — | — | — | — | — | 2 |
| 2002 | — | — | — | — | — | 2 |
| 2001 | — | — | — | — | — | 2 |
| 2000 | — | — | — | — | — | 1 |
| 1999 | — | — | — | — | — | 1 |
| 1998 | — | — | — | — | — | 1 |
| 1997 | — | — | — | — | — | 1 |
| 1996 | — | — | — | — | — | 1 |
| 1995 | — | — | — | — | 16 | 21 |
| 1994 | — | — | — | — | 250 | 510 |
| 1993 | 8,500 | — | — | — | 250 | 9,260 |
| 1992 | 10,480 | — | — | — | 180 | 10,698 |
| 1991 | 15,600 | — | — | — | 370 | 16,246 |
| 1990 | 19,000 | 19,100 | 3,390 | 9,850 | 170 | 51,990 |
| 1989 | 49,300 | 18,500 | 15,000 | 8,200 | — | 91,470 |
| 1988 | 45,100 | 15,000 | 15,000 | 9,200 | 250 | 84,950 |
| 1987 | — | — | — | — | 500 | 1,250 |
▎ 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.