![]() ![]() However, from the plots of piper diagram the samples result revealed (40%) Na-Mg-HCO 3 and (35%) Na-HCO 3 water types. The groundwater in this research is controlled by sodium and bicarbonate ions that defined the composition of the water type to be Na HCO 3. Forty samples were assembled and investigated for the analysis of major cations and anions. The GIS interpolation tool was used to obtain the spatial distribution of groundwater quality parameters and DWQI in the area. The interpolation methods were used to demonstrate the facies pattern and Drinking Water Quality Index (DWQI) of the groundwater in the research area. The aquifers have been overworked intensively as the main source of indigenous water supply in the study area. These aquifers are the primary source of national drinking water and partly for agricultural activity in El Faw, El Raha (Fw-Rh), El Qalabat and El Quresha (Qa-Qu) localities in the southern part of Gedaref State in eastern Sudan. ![]() In this study, groundwater quality parameters were observed in three different aquifers including: sandstone, alluvium and basalt. ![]() Geographic Information System (GIS) and remote sensing (RS), are intensive tools for the performance and analysis of spatial datum associated with groundwater sources control. The observation of groundwater quality elements is essential for understanding the classification and distribution of drinking water.
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