As water levels drop, the risk of arsenic rises
Colorado’s San Luis Valley offers clues to what the future may hold as drought continues.
(Melissa Bailey | for KFF Health News) Angie Mestas, a schoolteacher, used a lifetime of savings to drill a drinking well on her land in Los Sauces, Colorado. But she won't drink from it until she tests for arsenic and E. coli, which are common in the area.