Nowadays, with increasing population and increasing water demand in different sectors of agriculture, industry and drinking, there is a lot of pressure on groundwater resources. In addition to the occurrence of severe and prolonged droughts, this has created conditions for the country, especially in arid and fertile areas, which has faced serious challenges in terms of quantity and quality of water. In many parts of the world, especially in areas such as Iran, groundwater is considered as an important source for meeting drinking and farming needs. Agricultural activities and the excessive use of chemical fertilizers are important factors in reducing the quality of groundwater. In the present study, using the interpolation methods, the chemical properties of groundwater in Yazd plain for drinking and agricultural use were analyzed. For this purpose, 51 samples of groundwater were collected and evaluated in terms of qualitative parameters. The aquifer quality maps were mapped using spline and kriging interpolation methods in the ArcGIS environment, and groundwater quality for drinking and farming was studied based on Schoeller and Wilcox classification.

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