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