Report of a study by ActionAid India on the sewage treatment plants of BWSSB.
It details the state of the STPs, the standards they are aiming for, and how that compares to that of KSPCB.
Data on Chennai's sewerage capacity.
Includes map/report on Chennai's Underground sewerage schemes.
Status and capacity of STPs
Sewage treatment capacity as of March 2018 with comparison to 1974.