الملخص

Abstract The present study investigation the ground water sited in Mosul city in Nineveh government and some others in its suburb. The aim of the study is to determining the type of chemical and physical characteristics in addition to the validity of this type of ground water for various purposes. For this purpes16 wells were chosen for four months samples from each was takes at rainy season this period at April 2008 to July 2008 Out of these 6was chosen to study the number of bacteria. The result reveals that water of most wells were classified as hard to very hard and also its water are not suitable for drinking and Industrial uses. According to classification system for irrigations water. All wells of sample were classified as C3S1 and C4S1, sodality percentage in all wells were less than 70%.