Only 1 of 27 major drains met norms: DPCC report

As Delhi moves to modernise its infrastructure to improve the Yamuna's water quality, untreated sewage and industrial effluents continue to heavily pollute the drains flowing into the river, according to the latest report by the Delhi Pollution Control Committee (DPCC).

- Paras Singh

The report for the month of October, found that of the 27 drains assessed, 10 had no flow or had been tapped. Of the remaining 17 drains, only onethe Shastri Park drain-met the prescribed water quality standards.

Senior government officials said the Delhi Jal Board (DJB) is planning to step up surveillance of water quality in 75 drains and sub-drains that carry untreated effluents into the river.

According to DPCC standards, drain samples should have a pH between 5.5 and 9, TSS below 100 mg/L, COD below 250 mg/L and BOD below 30 mg/L.