International Science Community Association International Research Journal of Environmental Sciences 2319 - 1414 1 1 2012 August 22 Water Quality Evaluation of River Ghataprabha (India) 12 18 EN P Rajiv 1 Department of Biotechnology, School of Life Sciences, Karpagam University, Coimbatore, Tamilnadu, India, INDIA Hasna Abdul Salam 2 Kamaraj M 3 Rajeshwari Sivaraj 4 Sankar A 5 Mumtazuddin S. 1 University Department of Chemistry, B.R. Ambedkar Bihar University, Muzaffarpur – 842001, Bihar, INDIA. Azad A.K. 2 Bharti Prabhat 3 Ranjan Rakesh 4 Shivayogimath C.B 1 Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka, INDIA Kalburgi P.B 2 Department of Biotechnology, Basaveshwar Engineering College, Bagalkot, Karnataka, INDIA Deshannavar U.B 3 Chemical Engineering Dept., KLE Society’s Dr. M.S. Sheshgiri College of Engineering and Technology, Belgaum, Karnataka, INDIA Virupakshaiah D.B.M 4 > Research Paper 2012 7 7 2012 August 22 A study was made for evaluating the water quality of a 30 km stretch of river Ghataprabha by measuring various physico-chemical and biological water quality parameters. River Ghataprabha, a tributary of River Krishna, during its flow through Belgaum district in north Karnataka state receives untreated domestic wastes from Gokak town and three villages situated on the bank of river at the downstream of the river after Gokak town. Depending upon the location of point sources of waste discharges, seven sampling stations were selected for collecting the water samples. The parameters such as temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), hardness, alkalinity, etc. were analyzed every month for two years (2006-07 and 2007-08) and presented as two year average values during pre-monsoon and post-monsoon seasons. From the results it was found that there was a significant increase, especially in the pre-monsoon season, in all the physico-chemical parameters from the downstream of Gokak town. However, all the parameters were within the prescribed limits of drinking water standards. As per the CPCB stream classification, based on the results of BOD, the river stretch up to a distance of 3 km from the upstream boundary (upstream of Gokak town) can be designated as class of stream ‘C’, whereas the stretch between 3 to 30 km can be categorized as class of stream ‘D’. In terms of DO, the river satisfied the standards of class of stream ‘C’ (> 4 mg/l) at all the places during both the seasons. Copyright@ International Science Community Association