Combined water levels in seven lakes that supply water to Mumbai is at 8.3% of useful capacity

During the delayed monsoon season in Maharashtra, total water levels in seven lakes supplying water to Mumbai stand at 8.3% as on June 22, 2026, according to data released by the Hydraulic Engineers Department of the Brihanmumbai Municipal Corporation (BMC).

With a total useful capacity of 14,47,363 million liters in seven lakes, the total storage stood at 1,20,712 million liters as of 6 am on Monday, June 22, 2026.

Mumbai gets its water supply from seven lakes; Of these, 5 are located in neighboring Thane and Nashik districts and 2 (Tulsi and Vihar, which are also the smallest of the seven reservoirs) in Mumbai.

As the above graph shows, water levels in two major water reservoirs in the Bhatsa, Tansa and Vaitarna system are critically low. For example, Bhatsa, the largest reservoir with a capacity of 7,17,037 million liters, had only 54,918 million liters (or 7.66%) useful stock for the city as of Monday.

Due to delayed monsoon rains and the city’s daily water demand, water levels in these reservoirs have decreased since May 15, 2026, when the BMC announced a 10% cut as a precautionary measure. BMC supplies around 3 billion 950 million liters of water to the city per day. This leaves the city with more than 30 days of water in the reservoirs.

At this time last year, the seven reservoirs had total useful water levels of 25.87% (as of June 21, 2025). Water levels in each of the seven reservoirs since June 21, 2025 are shown in the chart below.