The present study deals with the study on pollution status and its impact on water quality of River Ganga at Haridwar. For the present study four sampling stations viz. Saptrishi ghat, Har-ki-pauri, Chandi ghat and Pul Jatwara were selected and various physico-chemical parameters i.e. temperature, conductivity, total solids, pH, velocity,turbidity, BOD, COD, DO, free CO2, acidity, alkalinity,total hardness, chlorides, calcium, magnesium, phosphates were analyzed. Minor fluctuations in physico-chemical parameters were observed during course of study at all the sampling stations. Correlation coefficients between different parameters were also calculated during present study.

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Abstract:The drinking water quality (underground water) of Bareilly city has been assessed by estimating physicochemical parameters and calculating Water Quality Index (WQI). Water Quality Index plays an important role in interpreting the information on water quality. The WQI of different sites shows that drinking water is of good quality. The correlation between different parameters was also estimated. During course of study the average value of physico-chemical parameters studied were observed as temperature 20.17 o C, turbidity 2.17 NTU, pH 8.13, electrical conductivity 1360 mmhos/cm, total dissolved solids 1218.9 mg/l, total hardness 515.0 mg/l chlorides 106.34 mg/l, alkalinity 342.15, fluorides 0.44 mg/l, sulphates 84.68 mg/l, nitrates 22.83 mg/l, DO 2.44 mg/l, BOD 1.26 mg/l. While average MPN were observed as 5.66 and average WQI as 21.48.