The seven lakes that supply drinking water to Mumbai have collective water stock of 11.06 per cent or 1,60,137 million litres (ML) as of Saturday, June 7.
Mumbai city receives its drinking water supply from Upper Vaitarna, Modak Sagar, Tansa, Middle Vaitarna, Bhatsa, Vehar, and Tulsi lakes, which have a combined storage capacity of 1,447,363 ML. BMC supplies 3,950 ML water to Mumbai every day.
Since the onset of the southwest monsoon on May 25, the catchment areas of the seven lakes has received a total of 415 mm of rainfall.
In the past 24 hours, starting 6 am on Friday, the catchment areas of these lakes have received considerable rainfall – 174 mm – according to information received from the Brihanmumbai Municipal Corporation (BMC). This area had received merely 18-mm rainfall in the 24 hours between Thursday and Friday morning.
The seven lakes had a combined water content of 6.35 per cent, or 91,861 million litres on the same day last year. Two years ago, on June 7, the lakes had water content at 11.14 per cent, or 1,61,297 million litres.
According to information from BMC, every 1 per cent of water from the lakes is sufficient for an average of two-and-a-half to three days of supply.
| Lake |
Minimum water level required to fetch water (in metres) |
Maximum water level or capacity of lakes (in metres) |
Current level (in metres) |
Useful water content (in million litres) |
Rainfall recorded in last 24 hours (in mm) |
|
Modak Sagar |
143.26 |
163.15 | 150.54 | 37,624 | 21 |
| Tansa |
118. 87 |
128.63 |
120.33 |
16,318 |
15 |
|
Vehar |
73.92 |
80.12 |
76.29 |
9,199 |
23 |
|
Tulsi |
131.07 |
139.17 |
134.18 |
2,426 |
13 |
|
Upper Vaitarna |
595.44 |
603.51 |
595.71 |
6,660 |
0 |
|
Bhatsa |
104.9 |
142.07 |
109.6 |
61,470 |
80 |
|
Middle Vaitarna |
220 |
285 |
243.82 |
26,441 |
22 |
