Mumbai: The water stock in the city's seven lakes has risen to nearly 81 per cent of the total required amount, as per data from the Hydraulic Engineer's Department in Mumbai's Bhandup Complex. The collective water stock of all seven lakes in the city now stands at 82.07 per cent of the total useful storage capacity. As per the latest data released at 6:00 AM on July 20, 2025, the combined useful water content across the key lakes is 1,187,829 million litres (ML) out of a full capacity of 1,447,363 ML.
Lake-Wise Storage Levels
Modak Sagar has reached its full capacity at 128,926 ML and began overflowing on July 9, with no level change in 24 hours. Bhatsa holds 555,646 ML (77.31% of capacity), while Middle Vaitarna stores 181,801 ML (93.94%). Tansa is at 132,644 ML (91.43%) and Upper Vaitarna is at 172,517 ML (75.98%). Vihar is at 14,591 ML (63.68%) and Tulsi, the smallest lake, at 4,346 ML (64.02%).
Rainfall since June has significantly impacted levels, with Middle Vaitarna receiving the most (1,747 mm), followed by Modak Sagar (1,586 mm). The past 24 hours saw minimal rainfall, including 0.00 mm at Modak Sagar and Vihar, 12.00 mm at Tulsi, and 6.00 mm at Bhatsa.
Cumulative Lake Group Stock
The total water stock in Upper Vaitarna, Middle Vaitarna, Modak Sagar, and Tansa is 615,246 ML, which is 88.01% of their capacity. Upper Vaitarna released water on July 5, Middle Vaitarna opened gates on July 7, and Modak Sagar overflowed on July 9.
Significant Improvement Over Last Year
The city’s water reserves are in a significantly better position compared to the same time last year. On July 20, 2024, the overall lake stock stood at only 40.96 per cent, whereas this year, it has more than doubled to 82.07 per cent. With continued rainfall forecasted, Mumbai’s water supply appears secure for the coming year.
