Report filed on behalf of Greater Chennai Corporation regarding pollution of Adyar estuary. Under the Chennai Rivers Restoration Trust (CRRT) project of eco restoration of Cooum river, construction of compound wall, boundary fence of the Cooum river have been taken up for a length of 23.92 km for preventing encroachments and preventing dumping of garbage and solid wastes. So far 20.54 km length of compound wall has been completed.

The work will be taken up after resettling the project affected families in coordination with the Water Resource Department (WRD) and Tamil Nadu Urban Habitat Development Board (TNUHDB).

Under the CRRT project of eco restoration of Cooum river, trash booms have been provided at 8 locations across Cooum river for intercepting and collecting the hyacinth and other floating materials from entering the area and removed periodically using porcelain and lorries and so far around 39000 MT hyacinth and floating materials have been removed from 8 locations.

Under the CRRT project of eco restoration of Cooum river, 1,00,485 MT of debris and garbage dumped along the banks of Cooum river has been removed at a cost of Rs 6.25 crore. A total of 14257 project affected families have been identified as encroached along the banks of Cooum river. So far, 13481 slum families encroached along the banks of Cooum river have been resettled in TNUHDB tenements. Action is being taken for shifting of the remaining slum families to TNUHDB tenements.

Through regular cleaning work and periodic special drive, garbage accumulated in the bunds are cleared from the banks of Adyar and Cooum river.