الملخص

Groundwater quality evaluation, the spatial distribution of quality parameters, and hydrogeochemical modeling are useful tools for decision-makers in water quality management. The present study has applied GIS techniques for groundwater spatial distribution and hydrogeochemical model using NETPATHWin software for groundwater evaluation for drinking purpose in the Sulaymaniyah-Sharazoor basin. Sampling from thirty-one wells and seven springs was done, and major cations, anions, and NO3 were analyzed. The results show that all groundwater samples are suitable for different purposes according to Iraqi and World Health Organization standards and are characterized by low dissolved solid content. The northeastern and center of the basin are characterized relatively by higher contents of dissolved solids. Four flow paths were taken along the groundwater direction, and the output for the selected models revealed that the main hydrogeochemical reaction is dissolution-precipitation, and in some cases, there is cation exchange. Furthermore, the majority of water samples are undersaturated with concerning calcite, aragonite, dolomite, gypsum, anhydrite, and halite.