As regards with the surface water quality TDS in Nakkavagu ranges about 5.000 nanograms per litre near Patancheur to 1.100 milligrams per litre in the Ismailkhanpet.
The water mainly contains Chlorides and Sulphates in the effluents. Chrome water concentration has also increased from 1.800 to 4.000 milligrams per litre.