Hydrogeochemical Appraisal of Groundwater Quality and Its Suitability for Drinking and Irrigation Purposes in the West Central Senegal

Groundwater has been the main resource used for drinking, domestic and agricultural activities in West central Senegal past few decades. Thus, this study investigates quality of groundwater assesses its suitability drinking irrigation purposes. To end, 42 samples were collected analyzed various chemical parameters (major ions, fluoride, pH, total dissolved solids (TDS)). Chemical data interpreted using water indexes, Wilcox USSL salinity diagrams, bivariate plots, ionic ratios by comparing with WHO standards. Results indicated that is neutral to slightly alkaline pH values between 7.1 8.2. Piper diagram shows mixte-Ca-Na-Mg-HCO3 dominant hydrochemical facies. TDS index (WQI) respectively 69% 64.3% suitable drinking. Moreover, major ions concentrations found below desirable limits most samples. However, exceed guideline, limiting their use The computed reveal 87% 78% belong, respectively, excellent good category permissible. Similarly, according US classification, majority acceptable irrigation. Gibbs plots illustrate water-rocks interaction some extent evaporation process controlling chemistry while indicate mineral dissolution ion exchange play important role chemistry.