Abstract
To study the quality of Tigris River and its suitability for drink in Mosul city , the selected samples contain two types of water (Raw , supplied ) , four areas near four water projects (new right , old Right .Oprawy & Hammam Alaleel ). the samples were taken four seasons (winter – January ),(spring April) , (summer – July ) and two times at statistical analysis. The total number of sample were 64. After the analysis of samples , a high significant effect was noticed on (Calcium , hardness , Turbidity and T.D.S )tests ,but no any effects were found on chloride test .The location of water projects had high significant effects on (chloride, calcium, hardness and turbidly ) tests, but it had only significant effect on T.D.S .However, interaction of the water types with the water projects location showed high significant effects on the calcium & the hardness tests but only a significant effects on the turbidity and chloride test .The season had a high significant effects on the chloride , calcium and hardness tests also ,with significant effects on turbidity and T.D.S tests .The interaction of the water types & season showed a rather high significant on the chloride test , and a significant effects on calcium , hardness ,turbidity and T.D.S. Moreover interactions of the location of the water projects with the season showed high significant effects on the chloride , calcium and hardness ,and a significant effect on the turbidity and T.D.S test values .The interactions of the water types , water projects locations with seasons had high significant effects on hardness , with a significant effect on the chloride , calcium , turbidity and T.D.S respectively .The tests were agreed with international standards.
