I grew up in Glen Avon, CA. It was the dumping ground AKA The Stringfellow Acid Pits. TCE was present in the water I drank, bathed in and swam in. Here is a link to the site that talks about it. Check out page six. It is one of the pages that specifically addresses the TCE in the ground water.

http://yosemite.epa.gov/r9/sfund/r9s...b!OpenDocument