Long Island residents worry their tap water is unsafe

Aired: 12/15/2017 | 0:10:39 | Clip
While most of the country’s tap water is tested for hundreds of pollutants, including volatile chemicals, pesticides, metals and bacteria, it is not always safe to drink. Hari Sreenivasan reports from Long Island, New York, on worries about the presence of 1,4-dioxane, a chemical the EPA says it’s “likely to be carcinogenic,” but is almost completely unregulated.

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