• CTS PRINTEX, INC., SANTA CLARA County, CA

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

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
	Ground Water	Surface Water	Air	Soil	Other
1,1,1-TRICHLOROETHANE	X
1,1-DICHLOROETHYLENE	X
1,2-TRANS-DICHLOROETHYLENE	X
COPPER	X
COPPER COMPOUNDS	X
DICHLOROETHANE	X
LEAD	X
TRICHLOROETHYLENE	X

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.

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.

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

EPA Site Information

• NPL Fact Sheet
• Record of Decision (ROD) Abstracts
• NPL Site 5 Year Reviews
• Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS) Hazardous Waste Site Information
• Superfund Hazardous Waste Site Advanced Query Form

Scorecard reports for SANTA CLARA County on:

• Potential Sources of Land Contamination
• Criteria Air Pollutants
• Hazardous Air Pollutants