Geochemical Evaluation of Surface Water Quality and Appropriateness for Drinking and Irrigation Purposes in the Ain Tafarut, Ghadamis City, SW Libya

The goal of the current study is the geochemical assessment of surface water at the Ain Tafarut, Ghadamis city, SW Libya. The chemical data include sulfur isotope (?34S-SO4), major ions, trace elements, EC, TDS, TH, Alk and pH. The water is immature and hard. It falls in the field between NaCl and NaCaHCO3 types in the Piper diagram. Dominance of rock and evaporation is clear in the water. The contaminant values (except for Na, P, Cl, Br, Ba, Pb, As, Cd and Ni) are below the acceptable limit of WHO (2018). The water is seriously affected by P, Br and Ba (MI>6). The as content demonstrates that the water is not suitable for irrigation.