NYT

That Tap Water Is Legal but May Be Unhealthy

The 35-year-old federal law regulating tap water is so out of date that the water Americans drink can pose what scientists say are serious health risks — and still be legal

Only 91 contaminants are regulated by the Safe Drinking Water Act, yet more than 60,000 chemicals are used within the United States, according to Environmental Protection Agency estimates. Government and independent scientists have scrutinized thousands of those chemicals in recent decades, and identified hundreds associated with a risk of cancer and other diseases at small concentrations in drinking water, according to an analysis of government records by The New York Times.

For years, people said that America has the cleanest drinking water in the world,” said William K. Reilly, the E.P.A. administrator under President George H. W. Bush. “That was true 20 years ago. But people don’t realize how many new chemicals have emerged and how much more pollution has occurred. If they did, we would see very different attitudes.”

Government scientists have evaluated 830 of the contaminants most often found in water supplies, according to a review of records from the E.P.A. and the United States Geological Survey. They have determined that many of them are associated with cancer or other diseases, even at small concentrations.
Yet almost none of those assessments have been incorporated into the Safe Drinking Water Act or other federal laws.”  READ MORE HERE