Delhi Jal Board (DJB) water tanker. (File Photo: IANS). Image Source: IANS News

New Delhi, Feb 23 : The installed capacity of the Delhi Jal Board has been augmented 12 per cent in the last 10 years, according to Delhi's Economic Survey 2018-19 report, tabled in the Assembly, here on Saturday.

The capacity has been increased to 906 million gallons per day MGD in 2018 from 810 MGD in 2009, according to the report tabled by Delhi Finance Minister Manish Sisodia.

Water production during summer is being maintained at 895 millions of liters per day (MLD) consistently, it said.

"Water is being supplied to about 18 million population of Delhi through existing water supply network, comprising of 14,355 km long pipelines and more than 107 underground reservoirs. About 83.42 per cent households of Delhi now has access to piped water supply," the report stated.

"The water supply treatment plants of the Delhi Jal Board treated 833 MGD surface water and 80 MGD groundwater as on March 2018."
As on March 2018, Delhi Jal Board has 4,234 functional tube wells and eight ranney wells.

"407 new water tankers with stainless steel containers fitted with GPS have been engaged in improving the tanker supply delivery system in the city. Apart from 400 hired MS tankers, 250 newly purchased SS tankers are being added to the existing fleet to supplement water supply in water deficit areas," it added.

Delhi has a network of about 14,000 kilometers of water supply mains. A significant portion of this is 40-50 years old and prone to higher leakage losses, it said.

Water supply distribution network in the national capital has been developed to cover both planned and unplanned areas, it said. "Water supply was made available to 1,318 unauthorised colonies up to October 2018."
As per the Master Plan of Delhi 2021, prepared by the Delhi Development Authority, proposed water requirement with the norm of 80 GPCD, out of which 50 GPCD is for a domestic requirement and 30 GPCD for non-domestic purposes.

"The domestic water requirement of 50 GPCD comprises 30 GPCD for potable needs and 20 GPCD for non-potable water."

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