Even though the monsoon arrived early this year on May 25, 2025, the catchment areas of these seven lakes have not received sufficient rainfall, leading to the deficit. In the past 24 hours, between 6 am on June 4 and 6 am on June 5, none of the seven lakes received any rainfall, according to the BMC data
The lakes are located on the outskirts of Mumbai and in the neighbouring district of Thane. Representational Pic/File
The average water stock in the seven lakes that supply drinking water to Mumbai dipped to 11.77 per cent (1.7 lakh million litres) on Thursday morning, significantly lower than 22.66 per cent recorded one month ago, on May 5, 2025.
At full capacity, the lakes can hold 14.5 lakh million litres of water.
On Wednesday, June 4, the lake levels were recorded at 12.14 per cent (1.75 lakh million litres).
On the same day a year ago, on June 5, 2024, water stock was significantly lower at 6.78 per cent, and on June 5, 2023, it was recorded at 11.58 per cent.
Even though the monsoon arrived early this year on May 25, 2025, the catchment areas of these seven lakes have not received sufficient rainfall, leading to the deficit. In the past 24 hours, between 6 am on June 4 and 6 am on June 5, none of the seven lakes received any rainfall, according to the Brihanmumbai Municipal Corporation (BMC) data.
Since the onset of the monsoon this year, the catchment area of the Tulsi river has received 78 mm of rainfall, followed by Bhatsa, which has received 49 mm of rainfall. Middle Vaitarna has received 30 mm, Vihar has received 21 mm, Upper Vaitarna has received 17 mm, Modak Sagar has received 16 mm, and Tansa has received 12 mm.
The lakes are located on the outskirts of Mumbai and in the neighbouring district of Thane.
Mumbai lake levels as of June 5, 2025
| 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 | 150.7 | 38639 | 4 |
| Tansa | 118. 87 | 128.63 | 120.38 | 16892 | 5 |
| Vehar | 73.92 | 80.12 | 76.23 | 8944 | 8 |
| Tulsi | 131.07 | 139.17 | 134.22 | 2459 | 16 |
| Upper Vaitarna | 595.44 | 603.51 | 595.85 | 10170 | 0 |
| Bhatsa | 104.9 | 142.07 | 110 | 67046 | 5 |
| Middle Vaitarna | 220 | 285 | 243.67 | 26225 | 10 |
Year-wise water stock on June 5
| Year | Lake levels in percentage | Lake levels in million litres |
| 2025 | 11.77 per cent | 170374 |
| 2024 | 6.78 per cent | 98182 |
| 2023 | 11.58 per cent | 167550 |
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