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Superfund Site Report: CTS PRINTEX, INC.
  • Map Locating Superfund Site
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  • Site Description
    Stage of Clean-up: Construction Completed

    Conditions at proposal (June 24, 1988): CTS Printex, Inc., manufactured printed circuit boards on 5.6 acres in Mountain View, Santa Clara County, California, during 1966-85. Printex was incorporated in 1966 and acquired by CTS Corp. in 1981. In the "wet-floor" building at 1911 Plymouth Street, acid waste water containing COPPER, LEAD, and organic wastes containing TRICHLOROETHYLENE (TCE) and other solvents drained to the floor, collected in a sump where they were neutralized with AMMONIA, and discharged to the Mountain View sanitary sewer. Early in 1985, a consultant to CTS Corp. found high levels of COPPER and LEAD in soil near the wet-floor building and high levels of TCE, 1,1,1-TRICHLOROETHANE, and 1,1-DICHLOROETHYLENE in monitoring wells downgradient of the site.  More...

    Sources of Contamination:
    • Inadvertent spill
    • Manufacturing process
    • Waste tank - below ground
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  • Threats and Contaminants
    Groundwater on and off site contains VOCS and HEAVY METALS including LEAD and COPPER. Soils on site are contaminated with LEAD and COPPER. People who worked in the "wet-floor" building may have been exposed to hazardous chemicals if they inhaled gases from the contaminated soils under it, especially in a confined space. The building has since been decontaminated and the soils have been excavated, thereby, eliminating this threat.

    Contaminants Detected

    Air Soil Other

    Groundwater and Drinking Water

    Were drinking water wells shut down due to contamination? No
    Are drinking water wells potentially threatened? Yes
    Population served by the threatened wells: No data
    List ground water uses.
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  • Pre-Cleanup Rankings
    EPA Hazard Ranking System scores for CTS PRINTEX, INC.:

    Less Hazard National Average More Hazard
    0%         50%         100%

    Overall site:
    Ground water migration:

    Rank Superfund sites in the U.S., CALIFORNIA, or in SANTA CLARA County by EPA Hazard Ranking Scores.

    *Note: EPA's Hazard Ranking System is designed to screen and prioritize sites for the Superfund program, based on limited data available at time of listing. These scores are not based on a comprehensive risk assessment of the site and do not reflect conditions after initiation of cleanup work.
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  • Site Information
    Site Name: CTS PRINTEX, INC.
    EPA ID: CAD009212838
    Other Names: PRINTEX
    Site Ownership: Private
    Category of Site: Manufacturing Plant
    Date of Final Listing on the NPL: February 21, 1990
    List Standard Industrial Classifications (SIC) associated with current and past activities at the CTS PRINTEX, INC. Superfund site.
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  • Potentially Responsible Party (PRP) Involvement
    Number of PRPs currently associated with this site: 0
    Hazardous waste received from off-site generators/transporters? No
    Number of past and present PRPs who contributed less than 1% of the waste: 0
    Number of owners/operators which are also municipalities: 0
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