Evaluation of Groundwater Quality Index for drinking purpose from some villages around Darbandikhan district, Kurdistan Region -Iraq

This study was conducted over seven villages near Darbandikhan district including (2) wells and (5) springs. It covers more than 60 km, to assess the suitability of ground water quality for drinking purpose using water quality index through investigating of different wells and springs; this technique is very useful tool for quick assessment for any water system. This was done by subjecting the seven water resources in the mentioned area under investigation, where drinking water samples are not treated before consumption. For calculating Water Quality Index, fourteen parameters such as (pH, TDS, EC, Turbidity, Total Hardness as CaCO3, Calcium, Magnesium, Sulphate, Chloride, Nitrate (NO3-N), Nitrite (NO2-N), Phosphate (PO4-P), Sodium and Potassium) have been considered. The study spread over two seasons namely fall and spring. The observed values of these physicochemical parameters were compared with World Health Organization standards. The results indicated that water quality of springs and wells varied from excellent water quality (A) to good water quality (B).