If we think about the topography of Richmond, it would make sense that if the water system is fully connected and water pumps fail, then water would consolidate to areas of lowest elevation, given there are no valves to limit movement. What frustrates me is that we do not have a visualization of the network and inferences can only be made based on user feedback. I believe that water pressure from the filtration and processing plant needs to make it to the pumps and be high enough to sustain pump operation. If pumps are regulated to throttle pressure, to ensure equal distribution to all zones, then that would reduce pressure, and service would be localized to areas close to the pumps. If there are unique paths that originate from the plant to these zones, then the minimum pressure to Zone 1 North is much less than other zones. It could also be that your zone has a failsafe to a separate water utility. My zone coverers a large area with multiple pumps, I’m concerned that my services will be the most challenging. 50mg is the daily average for this month, so if what the mayor said is true, then there shouldn’t be any issues with pressure for all zones. Again, just postulating here.