Excessive pumping of groundwater causing saline intrusion in coastal line. Constantly growing population mandates seawater reverse osmosis (SWRO) desalination plants in coastal cities of India. Product water is characteristically low in mineral content, alkalinity and pH and, therefore, needs to be conditioned (post treated).

Under the environmental impact studies of the sewerage scheme, assessment of the seasonal water quality of the sources around the oxidation ponds and few pumping stations were monitored in Trichirrappalli Sewerage Scheme, Tamil Nadu.

A monitoring investigation has been carried out in selected areas of northern India, viz. Agra, Mathura, Firozabad and Bharatpur. It reveals that Noise Level Standards and Guidelines are notified in the Environment (Protection) Rules, 1986 are yet to be compiled at almost all areas, particularly during night hours.