Joint Committee report on restoration of Korattur lake, Chennai, Tamil Nadu, 01/10/2021

  • 01/10/2021

Report of the Joint Committee in compliance to the National Green Tribunal order, June 24, 2021 in Original Application No. 268 of 2016 (SZ).

The Korattur People's Welfare & Awareness Trust has filed an application before the NGT to restrain untreated effluent from industries and sewage from household activities directly letting into the Korattur lake through the canals and in other ways. The NGT, December 12, 2019 had directed the constitution of a joint committee for preparing short term and long term action plan for restoration of Korattur lake.

The sediment samples collected at various locations inside Ambattur lake contains heavy metals such as chromium, lead, nickle, zinc and copper. The results revealed that the quality of the water falls in Class C, however, the higher value of BOD and presence of coliforms indicates the mixing of untreated sewage from an un sewered area into the lake, the report said.