Volume of sewage generated each day in the city of Patna.

Combined capacity of sewage treatment in Patna based on 6 STPs that have been constructed as of Sep 2021. (MLD = million litres a day)

Volume of sewage that cannot be treated in Patna due to gap between sewage generated and treatment capacity that has been constructed. Slow pace of progress on the construction of the STPs and their related network, mainly owing to inordinate delay in offering no-objection certificates from different departments, has led to the continued flow of untreated sewage water directly into river Ganga and Punpun, another major tributary of Ganga.