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One hundred and fifty-six groundwater samples were collected from the Aosta Valley region, Italy and analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), major cations (Ca2+, Mg2+, Na+ and K+), major anions (HCO3-, F-, Cl-, NO3-, SO42-) to evaluate the hydrogeochemical characterization as well as water quality of the area. A geographic information system (GIS) tool was used to study the spatial variation in the groundwater parameters of the study area. The analytical re...