Hewlett-Packard Building 15 manufactured small electronic transformers from 1965 to 1973, as well as circuit boards from 1965 to 1987. Acids, metals, and solvents were used throughout the manufacturing process and chemicals were stored in a storage shed from 1965 to 1973, and then in a chemical storage “bunker” from 1974 to 1987.
The site, which has been re-addressed as 3181 Porter Drive, Palo Alto, is part of the Hillview Porter regional toxic plume in Palo Alto, which encompasses facilities in the Stanford Research Park.
The site is overseen by the Department of Toxic Substances Control (DTSC) for ongoing operation and maintenance activities, which includes groundwater monitoring for an on-site groundwater extraction and treatment system, which currently operates to treat chlorinated volatile organic compounds (tetrachloroethylene (PCE) and trichloroethylene (TCE), and their associated daughter products).