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Tucson Water Director John Kmiec stands next to one of about 40 city wells that have been shut off because of PFAS contamination.
Alisa Reznick/KJZZ
It’s been a little over a year since the EPA rolled out the first legally enforceable limits on some PFAS chemicals in drinking water. The regulation came after years of research tying the human-made chemicals to a range of health issues.
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