Mumbai’s seven lakes supplying drinking water to the city were at 96.37 per cent of their combined useful storage capacity as of 6 am on Wednesday, September 30, according to the latest data released by the Hydraulic Engineer’s Department at the Master Control Centre in Bhandup Complex.
Overall lake stock falls from 97.39 per cent on September 26
The combined useful live storage stood at 13,94,800 million litres (ML), against the total useful capacity of 14,47,363 ML.
The stock has declined from 97.39 per cent recorded on September 26. On the same date last year, the lakes held 14,23,858 ML, or 98.38 per cent of their useful capacity, while the figure stood at 14,37,503 ML (99.32 per cent) in 2024.
Modak Sagar records sharp 21-metre fall
Among the seven lakes, Modak Sagar recorded the sharpest movement, with its water level falling by 21 metres over the past 24 hours. Its current level stood at 160.19 metres against the full supply level (FSL) of 163.15 metres, with live storage at 1,04,872 ML, or 81.34 per cent of its capacity. The lake recorded no rainfall on Wednesday, with its season total standing at 3,254 mm.
Upper Vaitarna remains stable
Upper Vaitarna’s water level remained unchanged at 603.27 metres against an FSL of 603.51 metres. Its live storage was 2,19,332 ML, or 96.60 per cent of capacity. The lake received no rainfall in the past 24 hours, while its season rainfall total stood at 3,894 mm.
Tansa sees marginal dip; Middle Vaitarna rises
Tansa recorded a marginal decline, with its level falling 0.03 metres to 128.26 metres against an FSL of 128.63 metres. Its live storage stood at 1,37,932 ML, or 95.07 per cent of capacity. The lake received no rainfall during the period, with cumulative seasonal rainfall at 2,959 mm.
Middle Vaitarna, meanwhile, recorded a 0.07-metre rise in water level to 284.59 metres against an FSL of 285 metres. Its live storage stood at 1,92,040 ML, or 99.23 per cent of capacity. The lake received 13 mm of rainfall, taking its seasonal total to 2,978 mm.
Together, Upper Vaitarna, Middle Vaitarna and Tansa held 6,54,176 ML against their combined useful capacity of 6,94,582 ML, amounting to 94.18 per cent.
Bhatsa holds over 98 per cent of useful capacity
Bhatsa, Mumbai’s largest water source among the seven lakes, stood at 141.63 metres against an FSL of 142.07 metres. Its live storage was 7,04,965 ML, or 98.32 per cent of capacity. No rainfall was recorded during the period, while seasonal rainfall stood at 2,689 mm.
Vihar remains full after 52 mm rainfall
Vihar was at 80.19 metres against an FSL of 80.12 metres and remained at 100 per cent of its live storage capacity, at 27,698 ML. It received 52 mm of rainfall, taking its seasonal total to 2,809 mm.
Tulsi receives 22 mm rainfall
Tulsi’s level stood at 139.11 metres against an FSL of 139.17 metres, with live storage at 7,961 ML, or 98.94 per cent of capacity. The lake received 22 mm of rainfall, taking its seasonal total to 3,825 mm.
Four lakes began overflowing in July
According to the Hydraulic Engineer’s Department, the Middle Vaitarna WSCPO gate was closed on July 6 at 2 pm, while release from Upper Vaitarna was stopped at 10 am the same day. Vihar began overflowing on July 7 at 9 pm, followed by Tulsi at 11.43 pm. Tansa Dam started overflowing on July 22 at 8.51 am, while Modak Sagar began overflowing on July 23 at 2.07 am.
The Bhandup Complex recorded 26 mm of rainfall, taking its seasonal rainfall total to 2,991 mm.
* This article was originally published here
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