Application of the CCME WQI to Evaluate Water Quality for Drinking Purpose: A Case Study for Groundwater Quality of Al-Mahalibiyah SubDistrict, Nineveh Province/ Iraq.

The current study aims to applying the Canadian water quality model on water of twelve wells distributed in Al-Mahalibiyah sub district, north-west of Mosul, to be evaluated for drinking purposes, Monthly water samples were collected from each well, (From June to December 2012) to estimate the followings: PH, Total dissolved solids, Total Hardness, Total Alkalinity, Anions and Cations concentrations. The results indicated a rise in some studied characters, especially Total dissolved Solid, Calcium and sulfate ions, that reached to (33909.673, 2271) mg / L, respectively, which have a negative impact on the CCMEWQI values, which ranged between (42.41 - 60.45) and this indicates that %83 of the water samples were classified as Marginal water category and the rest were classified as Poor water quality of drinking, this deterioration in water quality reflects the nature of the geological formations that water passes through, which requires some treatments such as freezing and slow melting to improve their quality before drinking. ( T. TDS pH 2012 ) : .Cations Anions T. Hardness Alkalinity 2271 ) . - 1 , 673, ( 3390 60.45 ) 83 % ( 42.41 (CCMEWQI) Poor quality Marginal