The 5-acre site is surrounded by residential, industrial, and business areas.
Contamination is believed to have resulted from overflowing sumps and spills.
About 250,000 people obtain drinking water from wells within 3 miles of the site. The board issued a Cleanup and Abatement Order to the company in August 1983. This is one of 19 sites in the South Bay Area of San Francisco. Facilities at these sites have used a variety of toxic chemicals, primarily chlorinated organic solvents, which contaminate a common ground water basin. Although these sites are listed separately, EPA intends to apply an area-wide approach to the problem as well as take specific action as necessary.