The present work is aimed at assessing the water quality index (WQI) for the Rajghat reservoir water on Bewas River life line of Sagar city. This has been determined by collecting water samples from selected 5 locations covered entire reservoir, and subjecting the samples to a most important physico-chemical analysis. 14 parameters have been considered: DO, water temperature, Conductivity, TDS, TSS, pH, Total hardness, calcium content, magnesium content, Total alkalinity, chloride, nitrate, o-Phosphate, and iron present in water samples. The results obtained reveal that the water quality of the area needs some degree of treatment before consumption. It therefore becomes imperative to regularly monitoring the quality of water to protect it. The objective of the present work is to compute water quality index values to assess the suitability of water for human consumption. Water level has a net positive effect on water quality in water body through dilution of environmental parameters. Consequently, local management agencies should pay more attention to nutrient concentrations during the monitoring schedule, as well as during the low-water periods which manifest a relatively bad water quality state.
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