Flint is moving forward on an effort to replace old lead and galvanized steel water lines amid the city’s crisis with lead-tainted water. A kickoff for the latest phase of the Fast Start program is Friday. Mayor Karen Weaver says it’ll result in the replacement of service lines at 200-250 homes. This fall, her office says the next phase of the replacement program that started in March will cover 5,000 additional homes. Under work starting Friday, replacement will take place with the approval of homeowners. The project has replaced dozens of lines and is being paid for with $2 million from the state. Over 18 months, lead leached from old pipes into Flint’s water supply when the city used water from the Flint River. The water wasn’t treated for corrosiveness.