Overview

• Mumbai’s seven water supply reservoirs surged from under 10% in mid-June to 72.61% capacity by July 9, holding roughly 1.05 trillion litres.
• Modak Sagar reached full capacity and began overflowing at 6:27 am, prompting the opening of one gate to release 1,022 cusecs into the Vaitarna River.
• Middle Vaitarna surpassed 90% capacity and led the BMC to open three dam gates to divert excess water to downstream reservoirs.
• Bhatsa remains the system’s largest storage at 436,902 ML, while smaller catchments like Vihar (13,206 ML) and Tulsi (3,779 ML) lag significantly behind.
• The IMD has issued yellow alerts and forecasts continued heavy rains over the coming week, underscoring the need for sustained gate management.