Project for ‘Laying Interceptor Sewers along the three major drains in Delhi for abatement of pollution in Yamuna River’ approved




The Cabinet Committee on Infrastructure today approved the project proposal for Laying Interceptor Sewer along Najafgarh, Supplementary and Shahdara Drain for Abatement of Pollution in Yamuna River at a cost of Rs. 1357.71 crore for funding under JNNURM as per the funding pattern of JNNURM viz Government of India [Additional Central Assistance (ACA)] – 35%, Government of National Capital Territory of Delhi (GNCTD) -15%, Delhi Jal Board (DJB) -50%.

Delhi’s population has grown at a phenomenal rate of 47% per decade (as against the national average of 21%), but planning and provisioning of infrastructure has not kept pace with the increase in population, resulting in rural villages, shanties and colonies without adequate sewerage infrastructure. Only around 54% of the population is connected to this sewerage network, leaving 46% of the population uncovered.

The colonies, villages and Jhuggi Jhopri (JJ) clusters without sewerage facilities are mainly in outer Delhi areas and the wastewater generated is presently flowing into river Yamuna through 18 drains and sub-drains. Of these 18 drains, the 3 major drains of Najafgarh, Supplementary and Shahadara contribute maximum pollution load. About 1764 MLD of wastewater flows through 190 sub-drains into these 3 major drains and then in the Yamuna river.

To tackle the pollution level in river Yamuna, DJB has envisaged the concept of Interceptor Sewers for tapping the sub-drains falling into Najafgarh, Supplementary & Shahdara drains. In the long run, it is envisaged that these interceptor sewers shall act as trunk sewers, once the sewers are laid in unsewered areas.



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