There was a switch back to the Detroit water supply and a program to replace lead service lines: https://www.cityofflint.com/gettheleadout/ https://www.cityoff

There was a switch back to the Detroit water supply and a program to replace lead service lines: https://www.cityofflint.com/gettheleadout/ https://www.cityofflint.com/gettheleadout/ That doesn't necessarily address any houses with lead pipes inside the house, which are owned by the homeowner. (service lines are also generally treated as a homeowner responsibility, Michigan passed a law requiring cities to proactively swap them out)