Mumbai lake levels: Seven reservoirs hold 13,87,839 ML water, 95.89 per cent of capacity

Mumbairsquos seven lakes supplying drinking water to the city held 1387839 million litres ML of useful water or 9589 per cent of their combined live storage capacity as of 6 am on Saturday September 5 according to the Hydraulic Engineerrsquos Departmentrsquos latest lakelevel report issued by the Bhandup Master Control CentreThe combined useful live storage capacity of the seven reservoirs is 1447363 MLUpper VaitarnaUpper Vaitarna stood at 60287 metres against its full supply level FSL of 60351 metres and lowest drawdown level LDL of 59544 metresThe reservoir held 206767 ML equivalent to 9107 per cent of its useful live storage Its water level rose by 006 metres over the past 24 hoursUpper Vaitarna received 8 mm of rainfall during the day while its total rainfall stood at 3740 mmFor comparison the reservoir had 220297 ML 9703 per cent on the same date in 2025 and 223672 ML 9851 per cent in 2024Modak SagarModak Sagar recorded a water level of 16285 metres against an FSL of 16315 metres and LDL of 14326 metresIt held 126947 ML or 9847 per cent of its useful storage The lake level fell by 005 metres over the past 24 hoursThe reservoir received 1 mm of rainfall taking its total rainfall to 3089 mmOn the same date in 2025 Modak Sagar held 128925 ML or 100 per cent while in 2024 it held 128925 ML also 100 per centTansaTansarsquos water level stood at 12850 metres against an FSL of 12863 metres and LDL of 11887 metresThe reservoir held 142534 ML amounting to 9824 per cent of its useful live storage There was no rise or fall in its water level over the past 24 hoursTansa received no rainfall during the period while its total rainfall stood at 2779 mmIn 2025 Tansa had 144475 ML or 9958 per cent while in 2024 it had 143534 ML or 9893 per centMiddle VaitarnaMiddle Vaitarna recorded a water level of 28395 metres against an FSL of 285 metres and LDL of 220 metresThe reservoir held 187876 ML or 9708 per cent of its useful live storage Its water level fell by 012 metres in the last 24 hoursIt received 16 mm of rainfall while its total rainfall stood at 2770 mmIn 2025 Middle Vaitarna held 190143 ML or 9825 per cent while in 2024 it held 192433 ML or 9943 per centUpper Vaitarna Tansa and Middle Vaitarna combinedThe combined useful water content of Upper Vaitarna Tansa and Middle Vaitarna stood at 664124 ML equivalent to 9561 per cent of their combined useful live storageThe corresponding figures were 683840 ML 9845 per cent in 2025 and 688564 ML 9913 per cent in 2024BhatsaBhatsa one of the major reservoirs supplying Mumbai stood at 14102 metres against an FSL of 14207 metres and LDL of 10490 metresThe reservoir held 688229 ML or 9598 per cent of its useful live storage Its water level remained unchanged over the past 24 hoursBhatsa recorded no rainfall during the period while its total rainfall stood at 2542 mmThe reservoir held 661891 ML 9231 per cent in 2025 and 697558 ML 9728 per cent in 2024ViharVihar stood at 8015 metres against an FSL of 8012 metres and LDL of 7392 metresThe lake held 27698 ML with its useful storage at 100 per cent There was no rise or fall in its level over the past 24 hoursVihar received 4 mm of rainfall taking its total rainfall to 2527 mmThe lake was also at 100 per cent in 2025 and 2024 with 27698 ML of water in both yearsTulsiTulsi recorded a water level of 13898 metres against an FSL of 13917 metres and LDL of 13107 metresThe reservoir held 7787 ML or 9679 per cent of its useful live storage Its level fell by 001 metres over the past 24 hoursTulsi received 16 mm of rainfall while its total rainfall stood at 3531 mmIn 2025 the reservoir held 8046 ML or 100 per cent while in 2024 it also held 8046 ML or 100 per centOverall water stockThe seven lakes collectively held 1387839 ML compared with 1381475 ML on the corresponding 2025 reading and 1421866 ML in 2024The overall useful storage stood at 9589 per cent of the combined capacity of 1447363 ML The corresponding percentages were 9545 per cent in 2025 and 9824 per cent in 2024Overflow and water release statusAccording to the remarks in the Hydraulic Engineerrsquos Department report the Middle Vaitarna WSCPO gate was closed on July 6 2026 at 2 pm while the release from Upper Vaitarna was stopped on July 6 at 10 amVihar Lake started overflowing on July 7 at 9 pm followed by Tulsi Lake at 1143 pm on July 7Tansa Dam started overflowing on July 22 at 851 am while Modak Sagar Dam started overflowing on July 23 at 207 amThe Bhandup Complex recorded 5 mm of rainfall for the day while its total rainfall stood at 2745 mm