Raw industrial waste killing Yamuna, corroding sewer lines
Untreated effluents from industries making their way into the sewers and eventually reaching the Yamuna are not only killing the river but are also said to be behind the rapid corrosion of the city's sewer lines. The Delhi Jal Board, which is responsible for maintaining sewer lines and sewage treatment plants in the city, has identified this as a major reason why their sewer lines are rotting easily and the STPs malfunctioning.