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The water stock in the seven lakes that supply drinking water to Mumbai crossed the 50 per cent mark on Friday morning. The lakes currently hold 7,34,562 million litres (ML) of water, which is 50.75 per cent of their total capacity of 14,47,363 million litres.

On the same day last year, the lakes were only 8.59 per cent full, and in 2023, they were 17.66 per cent full. On Thursday morning, the stock was at 46.91 per cent, or 6,78,941 ML.

A senior official from the Brihanmumbai Municipal Corporation’s (BMC) hydraulics department told mid-day on Friday, “This water stock will now last the city for a little over four months. Since the monsoon arrived early this year and June also saw heavy rainfall, we are now in a good situation. Even though monsoon trends have become unpredictable, historically, July has received heavy rainfall. If this continues, Mumbai will have a comfortable level of water stock this year.”

Mumbai receives its water supply from seven lakes — Upper Vaitarna, Modak Sagar, Tansa, Middle Vaitarna, Bhatsa, Vihar, and Tulsi — located in the Mumbai, Thane, and Nashik districts. In the 24 hours between 6 am on Thursday and 6 am on Friday, the catchment areas of these lakes received a total of 358 mm of rainfall.

So far this monsoon, the Modak Sagar and Middle Vaitarna lakes have received 1071 mm and 1206 mm of rainfall, respectively, while Bhatsa lake has received 1004 mm. The BMC supplies between 3950 and 4100 million litres of water per day to Mumbai.

358mm
Rain in catchment areas