Mumbai’s seven lakes that supply drinking water are rising in level during the monsoon, with the combined usable storage nearing the 90% mark in the latest BMC updates. Reports cite a daily increase from the upper-80s to about 89%, driven by ongoing rainfall across reservoir catchment areas.

The Hydraulic Engineer’s Department of the BMC reports that usable water in the seven lakes reaches 89.08% (about 12,89,289 million litres out of 14,47,363 million litres) at 6:00 am on August 2, after improving from about 88.41% the prior day. It also lists near-full status for several reservoirs—Modak Sagar and Vihar at 100%, Tansa around 99.6%, and Tulsi around 99.5%—while others remain lower, including Bhatsa and Upper Vaitarna. Free Press Journal also describes earlier overtopping during July, when multiple lakes began overflowing.

Other outlets describe different points in the same seasonal trend. NDTV reports much lower earlier levels (around 41% and 50%) when IMD issues yellow alerts for Mumbai and Thane, along with notes that Vihar and Tulsi overflow after reaching full capacity. Subsequent NDTV updates track a rapid surge after heavy rain, including a rise to the low- to mid-80% range and later crossing 92%. Across coverage, the consistent emphasis is on BMC-reported storage percentages and IMD rainfall alerts, rather than any single proposed change to water supply policy.