Abstract:
In the present study, water quality of groundwater has been assessed in terms of water quality index (WQI) in Ballia
district of Uttar Pradesh. Data of 12 groundwater samples each of hand pump and bore well was taken for computing
the Water Quality Index using eleven parameters viz. pH, Total Dissolved Solids, Turbidity, Total Hardness, Arsenic,
Fluoride, Chloride, Nitrate, Iron, Sulphate and Dissolved Oxygen. The WQI results show that the overall water quality
class is ‘fair’ and water needs treatment.