synertek, inc. (building 1)

3050 CORONADO BLVD

In 1974, Synertek Inc. (Synertek) leased the building located at 3050 Coronado Drive in Santa Clara, California (Building No. 1), where it conducted semiconductor manufacturing operations. In 1979, Honeywell acquired Synertek as a wholly owned subsidiary. Synertek manufacturing operations ceased in 1985. Prior to 1985, Synertek constructed and operated two underground tank systems east of the building. One 200-gallon-capacity solvent tank was used for storing solvents between 1976 and 1982 and three former neutralization system tanks were used between 1974 and 1982 as holding tanks. These tanks stored a variety of chemicals, including chlorinated solvents. The tanks leaked volatile organic compounds (VOCs) into the soil. The quantity of solvents released by these tanks and the dates of the releases is unknown. These tanks, along with the affected soils, were removed in 1985. At that time, it was discovered that onsite and offsite groundwater had become contaminated. Your drinking water is not affected by VOC groundwater contamination from the site. Your drinking water is brought into the City of Santa Clara through the complex infrastructure of the State Water Project, the federal Central Valley Project, and San Francisco’s Hetch Hetchy Reservoir in the Sierra Nevada Mountains, not from groundwater in this area. In addition, Santa Clara’s drinking water is routinely tested to make sure it meets drinking water quality standards.

Hazardous Ranking Score

32 / 100

A score of 28.5 or higher qualifies a site for the Superfund National Priority List.

Regional Contact

Region 9
Phone: (415) 947-4251

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Timeline

Discovery
Site Inspection
Preliminary Assessment
Final Listing On NPL
Removal

Contaminants & Health Effects

      Carcinogen
      Endocrine Disrupter
      Neurotoxic
      Sensitiser
      Reproductive Toxin
      Persistent, bioaccumulative and toxic
      VOC
      Mutagen

        Census

        White
        African American
        Asian
        American Indian and Alaska Native
        Native Hawaiian
        Other

        4,244

        People living
        within a 1 mile radius

        $110,076

        Average Income

        1,396

        Occupied homes

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