Mumbai Water Stock Reaches 93.80%

Mumbai's water stock has continued to rise amid steady rainfall in the catchment areas, with the seven lakes supplying water to the city collectively reaching 93.80 per cent of their total useful live storage capacity as of 6 am on August 18, 2026.

The reservoirs together hold 13,57,667 million litres (ML) of useful water against their total capacity of 14,47,363 ML. The stock stood at 92.16 per cent a day earlier, indicating a rise of 1.64 percentage points in 24 hours.

According to the Brihanmumbai Municipal Corporation's (BMC) Hydraulic Engineer's Department, the current storage is also higher than the levels recorded on the same date in the previous two years. On August 18, 2025, the combined water stock stood at 91.18 per cent, while it was 93.04 per cent in 2024.

Several reservoirs supplying Mumbai are now close to or have already reached their maximum useful live storage. Modak Sagar, Vehar and Tulsi have all reached 100 per cent capacity, with useful storage of 1,28,925 ML, 27,698 ML and 8,046 ML, respectively.

Tansa is also almost full at 99.58 per cent, holding 1,44,475 ML of useful water. Meanwhile, Middle Vaitarna has reached 97.11 per cent, while Bhatsa stands at 92.84 per cent. Upper Vaitarna currently has 85.82 per cent of its live storage capacity filled, with 1,94,854 ML of water.

The steady rainfall across the catchment areas has helped maintain the strong water position. Upper Vaitarna recorded 52 mm of rainfall, while Modak Sagar received 54 mm and Middle Vaitarna recorded 51 mm. Tansa received 46 mm of rainfall.

Bhatsa recorded 20 mm, Vehar 29 mm, and Tulsi 16 mm of rainfall during the period. Several reservoirs had already begun overflowing earlier this monsoon. Vehar and Tulsi started overflowing on July 7, followed by Tansa Dam on July 22 and Modak Sagar Dam on July 23.

Operational measures continue to remain in place, with the Middle Vaitarna WSCPO gate closed since July 6, while releases from Upper Vaitarna were also halted on the same day.

The strong water position is a positive sign for Mumbai, indicating a good supply of water for the city's residents. The BMC's efforts to manage the water supply and the steady rainfall have contributed to the current situation.

In conclusion, the rise in Mumbai's water stock is a welcome development, and the city's residents can expect a stable water supply in the coming months.

The current water levels are a result of the combined efforts of the BMC and the steady rainfall in the catchment areas. The city's water supply is expected to remain strong, with the reservoirs continuing to fill up with the ongoing rainfall.

This development is significant for Mumbai, as it ensures a steady supply of water for the city's residents, industries, and businesses. The strong water position will also help to mitigate the effects of any potential water shortages in the future.

Overall, the rise in Mumbai's water stock is a positive development, and the city's residents can expect a stable and reliable water supply in the coming months.