http://thinkprogress.org/health/2016/01/30/3744566/flint-water-lead-exceeds-filters/
"Results of recently-tested water samples, released Friday out of Flint, Michigan, show levels of lead so high in some locations that government-issued filtration systems are unable to effectively treat the water. Water problems began in Flint as early as April 2014, when state-appointed emergency managers made the decision to switch the city’s water supply from Detroit’s system to the Flint River."
