Work for the construction of Chennai’s fourth desalination plant at Perur along East Coast Road (ECR),near the already existing plant at Nemmeli.

Construction work has been started to build the facility at Perur, which may be the largest desalination plant in Southeast Asia.

The third desalination plant, with a capacity to treat 150 million litres of seawater a day (mld) at Nemmeli, is all set to be inaugurated in a few weeks.

The seawater reverse osmosis (RO) desalination plant will have two 200-mld units, having the capacity to treat 400 mld in total. This will ensure that the plant produces 200 mld of treated water at any given point of time, said officials of the Chennai Metropolitan Water Supply and Sewerage Board or Metrowater.

Excavation work to build various units, such as intake sump and treated water storage system, has started. Moreover, work to build a compound wall and provide separate access roads to two burial grounds on the site is also in progress.