Water sources of Mumbai

Mumbai controls several dams in Shahapur Taluka (Thane district) that deliver water to the city. The Western Ghats trap most of the moisture-laden monsoon clouds, which feed these dammed rivers. Currently, these dams/lakes deliver approximately 3.4 billion litres of water to Mumbai daily.

Dams and Lakes near Mumbai

Dam[1]	Year[2]	Capacity (Million Litres)	Overflow Level (Metres)[3]
Vihar Lake	1860 & 1872	25,698	80.42
Tulsi Lake	1872	8,046	139.17
Tansa	1892 (Stage-I) 1915 (Stage-II) 1925 (Stage-III) 1948 (Stage-IV)	145,080	128.63
Modak Sagar (Lower Vaitarna)	1954 & 1957	128,925	163.15
Upper Vaitarna	1972	227,047	603.51
Bhatsa	1980 to 2007	717,037	142.07
Middle Vaitarna[4]	2014	193,530	285.00

Tansa and Vaitarna dams supply the Southern region of Mumbai, while the rest supply the suburbs. An underground tank in Malabar Hill is used to store the water.^[5]