NEW DELHI: No ownership is being taken at departmental levels to clean up Delhi’s drains and, in turn, the heavily polluted Yamuna, an NGTappointed monitoring committee for the river clean-up has said. In a recent report to National Green Tribunal (NGT) that has been
accessed by TOI, the committee said there was no coordination between the irrigation and flood control departent and Delhi Jal Board (DJB). The department “seems to believe that the water quality is not their mandate and should be done by DJB. DJB says they don’t have jurisdiction over drains,” the committee said. The NGT judgment and the committee’s action plan talk about aeration and ozonation to improve water quality but “there is apparently no ownership at the department level”, it added.
Consultants have been appointed to work on groundwater recharge component in 10 canals or irrigation minors where water quality improvement work is to be undertaken, but it does not include aeration and ozonation. The committee also pointed out, “An action plan for in-situ treatment of waste water flowing into the drains needs to be prepared for at least the four major drains flowing into the Yamuna in a time-bound manner.” After a preliminary assessment is submitted, the committee will call a meeting to review the plan.
The Yamuna receives maximum pollutant load through the four major drains, Najafgarh, Supplementary, Shahdara and Barapullah. Various schemes are working in parallel to trap the untreated sewage and take it to sewage treatment plants (STPs).
However, it needs a coordinated approach, the committee said. For example, it stressed, the Rs 2,000-crore interceptor project — being constructed for capturing untreated sewage — can’t be fully utilised till the linked STPs are functional to treat the added volume. Similarly, new drains emerging from unauthorised colonies need to be brought into a proper sewerage network system in a time-bound manner.
“Experts had informed NGT that technical interventions are needed in parallel to reduce the pollutant load in the drain, which would have direct impact on the quality of river water,” the report stated. These interventions are necessary because even after completion of the current schemes, the water quality of Yamuna will not “reach bathing standards of BOD (biological oxygen demand) <3mg/L and DO (dissolved oxygen) 5mg/L as design standards of the latest STPs are set at BOD <10mg/L”. NGT chairperson A K Goel had formed the monitoring committee in July and asked it to submit an action plan and a detailed report on cleaning the river by December 31, 2018.
By TNN| Post Source https://timesofindia.indiatimes.com/city/delhi/no-one-taking-ownership-in-yamuna-clean-up-ngt/articleshowprint/67907380.cms