Mumbai lake levels: Seven reservoirs hold 13.89 lakh ML as water stock reaches 95.97 per cent

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Mumbai's seven lakes, which supply drinking water to the city, collectively held 13,89,075 million litres of water, or 95.97 per cent of their total live storage capacity, as of 6 am on Sunday, September 6, according to the Hydraulic Engineer's Department at the Bhandup Master Control Centre.

The current stock stands lower than in the same period last year, when the reservoirs contained 14,05,437 million litres (97.10 per cent). Also, the lake levels remained lower than in 2024, when the lakes had 14,19,276 million litres, accounting for 98.06 per cent of the total live storage.

Vihar lake remain full

Among the seven reservoirs, Vihar lake remained at 100 per cent live storage. Whereas the water levels at Tulsi stood at 96.59, Tansa at 98.37 per cent, Middle Vaitarna was at 96.92 per cent, Bhatsa, the city's largest reservoir at 96.10 per cent, while Upper Vaitarna remained the lowest-filled lake at 91.51 per cent.

The current storage in individual lakes is as follows:

Upper Vaitarna: 2,07,760 million litres (91.51 per cent)

Modak Sagar: 1,26,510 million litres (98.13 per cent)

Tansa: 1,42,710 million litres (98.37 per cent)

Middle Vaitarna: 1,87,572 million litres (96.92 per cent)

Bhatsa: 6,89,053 million litres (96.10 per cent)

Vihar: 27,698 million litres (100 per cent)

Tulsi: 7,771 million litres (96.59 per cent)

Light showers continued across the lake catchment areas over the past 24 hours, with Upper Vaitarna receiving the highest rainfall of 28 mm.

Other rainfall recorded at the reservoirs includes:

Modak Sagar - 5 mm

Tulsi - 6 mm

Middle Vaitarna - 12 mm

Tansa - 16 mm

Bhatsa - 18 mm

Vihar- 7 mm

The Bhandup Complex recorded significant rainfall during the last 24 hours, taking its cumulative seasonal rainfall to 2,752 mm.

Monsoon rainfall so far

The cumulative rainfall recorded at the reservoirs this monsoon is:

Upper Vaitarna - 3,768 mm

Modak Sagar - 3,094 mm

Tansa - 2,795 mm

Middle Vaitarna - 2,782 mm

Bhatsa - 2,560 mm

Tulsi - 3,537 mm

Vihar - 2,543 mm

Reservoirs at their full capacity

The report stated that Vihar Lake has been overflowing since July 7. However, the capacity of Tansa Dam has decreased, which had been overflowing till August 22. On the other hand, the water level of Modak Sagar Dam has also decreased marginally on August 23.

Meanwhile, the Middle Vaitarna WSCPO gate remains closed, and the release of water from Upper Vaitarna has remained suspended since July 6, according to the Hydraulic Engineer's Department.