Mumbai lake levels: City’s seven lakes hold 95.83 per cent water stock; levels largely stable

Mumbairsquos seven lakes supplying drinking water to the city held 1386969 million litres ML of useful water as of 6 am on Wednesday September 2 according to the Hydraulic Engineerrsquos Departmentrsquos daily lakelevel reportThe combined live storage capacity of the seven lakes is 1447363 ML meaning the lakes were at 9583 per cent of their total useful storage capacityThe latest figures show that water levels remained largely stable over the past 24 hours with no significant rise or fall recorded in Upper Vaitarna Tansa Bhatsa or Vihar Modak Sagar Middle Vaitarna and Tulsi recorded marginal declinesMumbai lake levels on September 2Upper Vaitarna stood at 60278 metres against its full supply level FSL of 60351 metres The lake had 203789 ML of useful live storage equivalent to 8976 per cent of its capacityIt recorded 12 mm of rainfall during the day taking its total rainfall to 3679 mm There was no change in its level over the preceding 24 hoursModak Sagar recorded a level of 16297 metres against an FSL of 16315 metres Its useful live storage stood at 127983 ML or 9927 per cent of capacityThe lake received 14 mm of rainfall taking its total rainfall to 3064 mm Its level fell marginally by 005 metre in the last 24 hoursTansa was at 12850 metres against an FSL of 12863 metres It held 142592 ML of useful water or 9829 per cent of capacity Tansa recorded 8 mm of rainfall with total rainfall reaching 2760 mmIts level remained unchanged over the past 24 hoursMiddle Vaitarna stood at 28427 metres compared with its FSL of 285 metres The lake had 189946 ML of useful live storage equivalent to 9815 per cent of capacityIt received 15 mm of rainfall taking its total rainfall to 2737 mm Its level fell by 003 metre in the last 24 hoursTogether Upper Vaitarna Vaitarna Tansa and Middle Vaitarna had 664311 ML of water which was 9564 per cent of their combined useful storage capacity of 694582 MLBhatsa remains a major contributor to Mumbairsquos water stockBhatsa Lake recorded a level of 14098 metres against its FSL of 14207 metres It held 687132 ML of useful live storage amounting to 9583 per cent of its capacityBhatsa received 8 mm of rainfall taking its total rainfall to 2501 mm Its water level remained unchanged during the previous 24 hoursThe lakes useful storage capacity is 717037 MLVihar at 100 per cent useful storageVihar Lake stood at 8015 metres against an FSL of 8012 metres It had 27698 ML of useful live storage and was at 100 per cent of its useful storage capacityThe lake received 8 mm of rainfall taking its total rainfall to 2515 mm Its level remained unchanged over the last 24 hoursTulsi remains nearly fullTulsi Lake recorded a level of 13901 metres against an FSL of 13917 metres It held 7829 ML of useful water or 9730 per cent of its useful storage capacityTulsi received 9 mm of rainfall taking its total rainfall to 3504 mm Its level declined marginally by 002 metre over the preceding 24 hoursHow Mumbairsquos lake stock compares with previous yearsThe combined useful water stock in the seven lakes on September 2 stood at 1386969 ML or 9583 per cent of total useful storage capacityFor comparison the corresponding figures in the report were2026 1386969 ML 9583 per cent2025 1400806 ML 9678 per cent2024 1402999 ML 9693 per centThis means Mumbairsquos current water stock is lower than the levels recorded on the corresponding date in both 2025 and 2024Bhandup Complex records 14 mm rainfallThe report also stated that the Bhandup Complex recorded 14 mm of rainfall taking its total rainfall to 2728 mmMeanwhile several of Mumbairsquos lakes had already begun overflowing earlier this monsoon According to the report Vihar Lake started overflowing on July 7 at 9 pm followed by Tulsi Lake at 1143 pm on the same dayTansa Dam started overflowing on July 22 at 851 am while Modak Sagar Dam started overflowing on July 23 at 207 amThe report further noted that the Middle Vaitarna WSCP gate was closed on July 6 at 2 pm while release from Upper Vaitarna was stopped from July 6 at 10 amOverall Mumbairsquos water stock remains comfortably above 95 per cent of the cityrsquos total useful storage capacity although the September 2 figure is marginally below the corresponding levels recorded in the previous two years