More than 25 years after the state determined a chemical called 123 TCP caused cancer, this week, the California water board voted to regulate the chemical in our drinking water. Last year, I did a story about this cancer-causing chemical. I was worried because my family may have been drinking it. Let's rewind to last spring, and take a listen. Reporter: Sasha Kohkha
There's a Cancer-Causing Chemical in My Drinking Water. California Will Finally Regulate It
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