Cancer-Causing Chemical TCP Plagues California Drinking Water

ARVIN, Calif. — In the Central Valley of California, hundreds of wells that provide water to a million people are tainted with a chemical that some experts say is one of the most powerful cancer-causing agents in the world.

The state is poised to take the first step Tuesday to regulate the substance — called 1,2,3, TCP — but test data compiled by an activist group show it's also been detected by utilities across the country.

Some who live in this lush farmland believe it's to blame for the health problems of their family members and neighbors.

http://www.nbcnews.com/news/us-news/cancer-causing-chemical-tcp-plagues-california-drinking-water-n783726