The Delhi government will soon roll out a drainage master-plan with regard to improving the entire network of drains in the city.
This plan will be aimed at stepping up the entire city’s drain network as per the current and future needs, involving all the basins.
According to official reports, Delhi has three major drainage basins, that include Najafgarh, Barapullah and Trans-Yamuna, and the upcoming plan will cover all of them.
The drainage system of the city has not been overhauled since a very long time, and now requires repair and upgrade at several points.
According to the water minister, the plan will include repair of existing drains that need attention, and also construction of new ones in those areas where there is a need.
The government has plans to strictly not allow outflow of sewage in the storm drains, and only treated sewage of acceptable quality in accordance with the concerned pollution monitoring agency will be permitted to be released in them.
Recently, the Delhi government began the survey of city’s drains using drones, an initiative to assess the situation of the untreated waste that is added to the large drains by these smaller ones.
The initiative is also a part of Yamuna cleaning, and is aimed to bring out the status of the untreated waste being pumped into the bigger drains that finally empty out into the river.
Minister Parvesh Verma had said there are around 300 such sub-drains across the city, that finally empty into the 22 large drains, ultimately adding to Yamuna’s pollution.
The bigger drains of the city include Shahdara drain, Najafgarh drain (Sahibi river), supplementary drains and others, that finally discharge into the Yamuna.
The survey will also reveal about and identify those faulty mix ups of sewer lines and the storm water drains and accordingly repair those points to prevent the extra pollution which is added to the storm water channels.