Water Quality Index For A Group of Wells in Northwest of Mosul City

In this study The Water Quality Index (WQI) has been used to evaluate the ground water for a group of dug wells in northwest of Mosul city by using Multiplicative weighted mean method which known Geometric mean method; the study revealed the badness of ground water in the area for both drinking and irrigation uses; where it fall in the group five for drinking water and group four and five for irrigation uses, In relating of stockyard uses the well water is more suitable for this use and it fall in the groups one, two, three and four for this use. From comparing the WQI of the wells in the area with the WQI of Tigris River it found that is no big interaction between the river and the wells.