Mumbai is the most blessed city of India, having vast of lakes free from pollution for quenching thirst of Mumbaikers. Having Asia's largest filtration plant at Bhandup complex which is designed to work on gravity and surrounded with sea from 3 sides to drain out it's drainage & industrial wastage. For most of the other cities in India, there is no alternate left for drinking water as drainage is also dumped in their drinking source which is a river. Mumbai's water supply comes from seven lakes spread across the city -- Modak Sagar, Tansa lake, Vehar lake, Tulsi lake, Upper Vaitarna, Bhatsa and Middle Vaitarna. All dams are situated in Thane forest area, hence it is safe from any type of Industrial wastage, drainage line & agriculture pollutant. Mumbai needs 3,500 million litres of water per day, which is supplied through pipe lines spread over 100 kms.

Source of water for Mumbai & Thane Municipality is the same; hence quality of water supplied is also same. Kalyan Dombivali Municipality (KDMC) & Navi Mumbai Municipality (NMMC) also provide their supply of water from sweet & pollution free lakes, having water TDS levels around 60 ppm only. Only the difference is water filtration plant maintained by KDMC & SIDCO is not up to the mark like as of BMC, hence turbidity level is high in their water. Same cause occurs in case of more external suburbs like Ambernath, Badlapur, etc.

On the other hand, water supply from Vasai Virar Municipal Corporation (VVMC) is Surya River & Surya Dam situated at Palghar district. Hence in this river water the mineral content is high and TDS level is around 150 ppm. Many people for Mumbai may not like it's taste but the fact is it is healthier than nearby municipalities like BMC or TMC.

Recommended Technology (BMC-NMMC-TMC-KDMC-VVMC)- : UF or UF+UV