Does DWSD still in charge of the water supplies for all of the northern suburbs? Or did Oakland, Macomb, and St. Clair counties take over those water systems? I grew up in Pontiac, and remember reading that at least 25% of the pumping capacity was solely to cover all of the leaks in the decrepit early 20th century system that they still currently use.
A lot of the reason for shutting off blocks of customers is that the system under Detroit is literally collapsing from age and neglect.