Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HEWLETT-PACKARD CO STANFORD PARK DIV
1501 PAGE MILL RD, PALO ALTO, CA, 94304
Parent company: HEWLETT-PACKARD CO
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 | Nitric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1991 | — | 13,000 | — | — | 13,000 | |
| 1990 | 14,100 | 9,200 | 180 | 60 | 23,540 | |
| 1989 | 43,000 | 23,000 | 180 | 60 | 66,240 | |
| 1988 | 37,000 | 29,000 | — | 60 | 66,060 | |
| 1987 | — | — | 250 | 65 | 315 | |
▎ 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.