All the six lakes that supply water to the city have more than 96 per cent of the total stock needed until July.
The total water stock in all the six lakes — Bhatsa, Upper Vaitarna, Tulsi, Vihar, Modak Sagar and Tansa — as on Thursday is 12.78 lakh million litres.
A total of 13.25 lakh million litres is the full capacity needed to supply 3,400 million litres of water daily to the city.
The two state owned lakes, Bhatsa and Upper Vaitarna which together supply 80 per cent of the water stocks every day, are also almost full and the excess water is being discharged with the fear that the villages in the vicinity would be flooded.
"A lot of excess water is being discharged and it is necessary to tap this. We will think how it can be done," said Municipal Commissioner Swadheen Kshatriya.
The Brihanmumbai Municipal Corporation will review the water stocks in the six lakes on October 1 when monsoon ends. After that, it will decide whether water cuts should be introduced.
The full supply level of Upper Vaitarna is 603.51 m and the current level is 603.12 m.
The full supply level of Bhatsa is 142.07 m and the level has touched 141.51 m.
"It is raining in the catchments areas and if it continues for a week, all the lakes will be filled till their full supply mark," said Additional Municipal Commissioner Anil Diggikar.