METHODS ADOPTED

The water samples were characterised using the methods provided by NEERI (National Environmental Engineering Research Institute) and APHA (American Public Health Association). Some variables like turbidity, ammonia, residual chlorine and iron were determined using Tara Water Testing Kit. The soil and sediment samples were analysed by the methods given by the UAS (University of Agricultural Sciences, Bangalore, Karnataka). The organic matter in soil and sediment was determined by a conservation tillage fact sheet (http://www.akron.ars.usda.gov/fs_field.html). The obtained results of water were compared with Indian Standards for Drinking and Irrigation and standards prescribed by NEERI. The soil and sediment results were compared with the standard from Hand Book of Agriculture.