Lead and galvanized steel service lines are expected to be replaced this fall in 788 Flint homes as the city continues efforts to stop lead-tainted water from flowing through residential taps. Mayor Karen Weaver on Monday will announce neighborhoods targeted for the work in the third phase of her FAST Start initiative. The work is being paid with $25 million from the state. Water lines were replaced in 218 homes during phase two. Flint was under state financial control in 2014 when it switched from Detroit’s water system to the Flint River to save money. Officials failed to treat the river water with corrosion-control chemicals which allowed lead to leach from pipes. Tests later showed high lead levels in some Flint children. Flint has since returned to Detroit’s water system.