Water Supply Department of Mumbai

Brihan Mumbai Municipal Corporation provides drinking water supply to Mumbai city and suburbs. BMC faces major difficulties due to the demand for the increasing population, misuse of water through unmetered water usage. During COVID-19 lockdown there has been an increase in usage due to personal hygiene practices as well as added stay-at-home demands.

APPROXIMATELY THE ANNUAL WATER REQUIREMENT OF THE CITY IS 1,447,363 MILLION LITRES.

The Mumbai Water Supply system is one of the largest in the World and perhaps the second largest in Asia after Tokyo.

The water supply to Mumbai is undertaken by Hydraulic Engineer Department. It was established under Section 73A of the MMC Act 1888 and it is the oldest department.

The main objective of the Hydraulic Engineer department is to:

• operate, maintain and provide water and related services
• constantly improving and upgrading the Water Distribution system

The water supply for Mumbai is sourced from 7 different lakes and is treated at 4-Water Treatment Plants as per drinking water standards specified in IS 10500: 2012 before being distributed to the citizens. The water is distributed from 2-Master Balancing Reservoir, 27- Service Reservoirs across the city of Mumbai and through the maze of 6000 km long distribution network spread all over the city. The complex water supply system of Mumbai has another unique feature that almost entire water supply distribution is by gravity due to typical terrain geography.

The Bhandup Water Treatment facility is the largest (capacity) such facility at a single location in Asia. MCGM uses under-ground water supply tunnels ranging from diameter 2200mm to 5500mm totaling in the length of about 100 Km to convey raw / treated water. Daily more than 1000 valves are operated to regulate water supply in 250 water supply zones.

Click here for more details about the water supply services by BMC

Read about lakes and dams providing water supply to Mumbai