Flint, Michigan will replace 18,000 contaminated water lines by 2020, according to a Monday court filing. The state of Michigan agreed to foot the bill for the replacement, which will remove lead-contaminated pipes from the city The state has budgeted $87 million for the replacement, with an extra $10 million in reserve in case the project requires extra funding. The agreement is part of a lawsuit over the city's contaminated water system, which has piped lead into Flint homes for at least 18 months.