In this Aug. 1, 2018, photo, Lauren Woehr hands her 16-month-old daughter Caroline, held by her husband Dan McDowell, a cup filled with bottled water at their home in Horsham, Pa. In Horsham and surrounding towns in eastern Pennsylvania, and at other sites around the United States, the foams once used routinely in firefighting training at military bases contained per-and polyfluoroalkyl substances, or PFAS. EPA testing between 2013 and 2015 found significant amounts of PFAS in public water supplies in 33 U.S. states. (AP Photo/Matt Rourke)
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