341|Int. J. of Multidisciplinary and Current research, March/April 2014 International Journal of Multidisciplinary and Current Research Research Article ISSN: 2321-3124 Available at: http://ijmcr.com Impact of Waste Water on River Kathajodi for the Year 2009-10 G. Sunpriya Achary 1 , Saswat Kumar Mohanty 2 and Ramakanta Sahoo 3 1Dept. of Chemistry, Kist, Jatni, Bhubaneswar, Odisha, India 2State Pollution Control Board, Bhubaneswar, Odisha, India 3Dept. of Chemistry, Ravenshaw University, Cuttack, Odisha, India Accepted 04 April2014, Available online 15 April 2014, Vol.2 (March/April 2014 issue) Abstract A study was carried out to evaluate the impact of domestic waste generated from Cuttack city on river Kathajodi. Grab samples were collected in three seasons for two consecutive years both at upstream and at downstream. The results obtained in different seasons has been compared graphically. From analysis it was observed that almost all parameters are in increasing trend ( except DO) towards D/S. The stations located upstream of the river was found to be less polluted but the contamination of the river starts from downstream near Govt press due to dumping of waste and waste water. The water of the river assumed a dark hue due to discharge of raw domestic sewage. The pollution load decreases towards the last patch of the river within the study area as a result of dilution. Quality rating for different parameters has been calculated. From that water quality index was found out and compared. It was concluded that due to domestic waste water discharge water quality of river Kathajodi is deteriorating and the results are not meeting the prescribed standard for drinking water under class-C. . Keywords:Waste water, Water quality Introduction Waste water generated from urban areas is one of the major causes of pollutions of surface water in our country. The fast growth of urban economy and menial job opportunities in and around urban centers has encouraged migration of rural population to urban areas resulting of mushrooming of settlements and satellite towns. Consequently environmental problems related to water supply, effluent generation and disposal raise their ugly heads. Domestic sewage creates more serious problems so far as microbial contamination is concerned. This is primarily responsible for the spread of water born diseases. Besides microbials, various inorganic ions also contaminates the receiving water bodies which causes serious health disorders. Cuttack is the second highest populated city after the capital city,Bhubaneswa in Odisha. It comprises an area of 192.5 sq.km having population of 5.35 lakhs as per provisional census report of 2001. It is situated at the deltaic position of river Mahanadi and Kathajodi. The waste generated from Cuttack is dumped into the river Kathajodi . The river Kathajodi serves as the vital source of potable water for the people of the city as well as numerous villages located downstream. So it is the high time to investigate systematically as regards to their water quality. A systematic study was undertaken for a period of two years covering all the three major seasons. Different points were chosen according to their source of contamination. The study include various physico- chemical and microbiological parameters. Locations of sampling points In order to assess the water quality and physiochemical characteristic of river Kathajodi three different sampling points were selected to assess the impact of discharged waste on the river water. The locations were chosen according to their proximity of major Municipal Township which is expected to make significant contributions to the pollution load. The detail locations of sampling are described in table-01. Table-01 (Location Points) SN LOCATION OF THE SAMPLING POINTS CODE NO 01 Upstream of near High court area K-01 02 Downstream near Govt press K-02 03 Further downstream at Sankhataras K-03 Material and methods Grab samples were collected from the selected locations during different seasons (winter, summer, rainy) over a