In early 2015, dirty water in Flint, Michigan, was being tested for lead, two lawsuits were challenging rate increases, and now a study finds residents were then paying the highest water bills of 500 communities surveyed nationwide, according to a nonprofit advocacy group. Flint was deemed the “most expensive” water provider of the nation’s 500 largest community water systems in January 2015, and its residents paid $864.32 yearly for 60,000 ...