Mumbai lake levels see slight dip to 89.94 per cent, four reservoirs continue to overflow

Representational image. File pic

Mumbai's seven lakes, which supply drinking water to the city, collectively held 12,95,982 million litres of water, or 89.94 per cent of their total live storage capacity, as of 6 am on Monday, August 3, according to the Hydraulic Engineer's Department at the Bhandup Master Control Centre.

The current stock stays higher than the same period last year, when the reservoirs contained 12,91,877 million litres (89.26 per cent). Furthermore, the lake levels remain significantly higher than 2024, when the lakes had 12,89,614 million litres, accounting for 89.10 per cent of the total live storage.

[mumbaiwaterstock]

Modak Sagar, Vihar and Tulsi remain full

Among the seven reservoirs, Modak Sagar, Vihar and Tulsi continued to remain at 100 per cent live storage, with Tansa at 99.14 per cent.

Middle Vaitarna was at 91.05 per cent, Bhatsa, the city's largest reservoir, was at 87.64 per cent, while Upper Vaitarna remained the lowest-filled lake at 80.53 per cent.

The current storage in individual lakes is as follows:

• Upper Vaitarna: 1,82,842 million litres (80.53 per cent)
• Modak Sagar: 1,28,925 million litres (100 per cent)
• Tansa: 1,43,828 million litres (99.14 per cent)
• Middle Vaitarna: 1,76,212 million litres (91.05 per cent)
• Bhatsa: 6,28,431 million litres (87.64 per cent)
• Vihar: 27,698 million litres (100 per cent)
• Tulsi: 8,046 million litres (100 per cent)

Heavy showers continued across the lake catchment areas over the past 24 hours, with Tansa receiving the highest rainfall of 124 mm.

Other rainfall recorded at the reservoirs includes:

• Middle Vaitarna - 21 mm
• Modak Sagar - 14 mm
• Tulsi - 21 mm
• Tansa - 22 mm
• Bhatsa - 18 mm
• Vihar - 18 mm

The Bhandup Complex recorded significant rainfall during the last 24 hours, taking its cumulative seasonal rainfall to 2,372 mm.

Monsoon rainfall so far

The cumulative rainfall recorded at the reservoirs this monsoon is:

• Upper Vaitarna - 3,046 mm
• Modak Sagar - 2,592 mm
• Tansa - 2,403 mm
• Middle Vaitarna - 2,289 mm
• Bhatsa - 2,223 mm
• Tulsi - 3,066 mm
• Vihar - 2,199 mm

Four reservoirs continue to overflow

The report stated that Vihar Lake has been overflowing since July 7, followed by Tulsi Lake later the same day. Tansa Dam started overflowing on July 22, while Modak Sagar Dam began overflowing on July 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.