Send a truck with untreated Detroit river water to neighborhoods on a union work schedule. Fill any buckets (residents have to supply the buckets) they bring out with water. First come first served. Better service than most of the UN nations have. You get what you pay for. You want clean water, in the pipes, you pay. Want third world pricing, take third world quality.
Detroit had 5 cholera epidemics in the 1800s until its doubtless then very white population paid to fix that. Its new majority doesn't want to pay and hasn't had its fair share of Detroit history.