Assessment of seasonal variation in physico-chemical characteristics and quality of Pravara River water for irrigation use in Sangamner, Dist Ahmednagar, Maharashtra.

In present investigation an attempt was made for as sessment of Seasonal Variation in Physicochemical Characteristics and Quality of Pravara Riv er Water for Irrigation during year 2008. The study reveals that most of the physicochemical para meters of river water at five selected sites show moderate variation in their concentration for all seasons. However site 3 and 4 stands evidence of discharge of waste water from the city in the river. This intern indicated the quality of water for irrigation in the study area. The Sodi um absorption ratio and Residual sodium carbonate values show good water quality for irriga tion. However at site 3 and 4 the values of Kelly’s index and Soluble Sodium Percentage exceed their standards in monsoon season indicating doubtful quality of water for irrigation .