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Posted at: Jul 11, 2018, 12:43 AM; last updated: Jul 11, 2018, 12:43 AM (IST)

‘Water supply to rise by 50% in 5 yrs’

Adopts Singapore model to meet the scarcity; consultant hired for 36 STPs
‘Water supply to rise by 50% in 5 yrs’
CM Arvind Kejriwal inspects the Coronation Sewage Treatment Plant site at Burari, in New Delhi on Tuesday. Tribune Photo

Ananya Panda

Tribune News Service

New Delhi, July 10

To make up for the shortfall of water in the city — conservatively estimated to be 200 million gallons daily (MGD) — the Delhi government has initiated a slew of projects that will enable it to augment the availability of water in the capital by 15-20 per cent in the coming two years and by at least 50 per cent over the next five years.

The AAP government has come up with a blueprint incorporating lessons from the Singapore model (NE Water plant).

The announcements came from Chief Minister (CM) Arvind Kejriwal during a field visit of under-construction Coronation Pillar STP here today.

“The Coronation and Rithala STPs together will step up the water production by 15-20 per cent and as projects start, water woes would gradually decrease,” said Kejriwal. Under the phase one, the Coronation STP with a capacity of 70 MGD will become operational by next June, he said adding that laying of pipelines for it is in progress.

“Singapore has a system in which water from STPs is discharged into the river and the same water after flowing is later reclaimed as new water. We are adopting the same model,” said the CM adding that once ready 70 MGD water from the Coronation STP will be released upstream Yamuna at Palla from where it will flow for about 11 km to Wazirabad STP to reclaim the water for use again.

By December 2019, in addition to 70 MGD, 40 MGD water from Rithala STP would be sent to Wazirabad via Palla for treatment and supply in the second phase, going by the Delhi Jal Board's (DJB's) plan.

At Rithala, the pipelines and the pumping stations will be ready for recycling another 40 MGD water by December 2020 in the next phase, said Kejriwal, who chairs the DJB, thus taking the total retreated water of the two STPs to 150 MGD. In Dwarka, the government has proposed to install 50 MGD WTP to treat water coming from Haryana and it is likely to be ready by February 2020, besides a new 150 MGD STP will be set up at Chandrawal.

Delhi produces over 900 MGD water, falling short of catering to the demand of over 11,00 MGD. "There has been no increase in water availability earlier, we have laid water pipelines in 409 colonies since we came to power," claimed Kejriwal.

The government has hired a consultant to see how treated water generated at the city’s 36 STPs can be recycled and reused on the lines of the two STPs at Coronation and Rithala. “Currently, the water from these STPs goes in the Yamuna and this once done will produce at least 200 MGD of additional water,” said Kejriwal.

The water utility also plans to make 70 new borewells at Palla which will generate 15 MGD of extra water in the next six-seven months and rejuvenate 200 water bodies with landscaping around them which in turn will improve the ground water levels.

Further, the government’s plans also include ensuring that rain water is harvested on war-footing before next rainy season and for it, the government is roping in the RWAs under pilot projects targeting areas where the water table is high.

For Yamuna cleaning, a consultant has been hired, said Kejriwal hoping that the interceptor sewers project will be ready by December thus helping in generation of 605 MGD. Talks are also on with the UP government for concretising the canals which will further prevent water from seeping into the ground on their way to Delhi, said Kejriwal while noting that it will take around four-five years.

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