الملخص

due to the need of some villages to water and because of its far distance from the rivers. many wells were dug in these areas to fulfill their need to water for irrigation and drinking , The aim of the study is to determine the validity of these wells water for the purposes that mentioned above also study its physical and chemical properties. Several samples were taken from some wells of Sinjar villages‟ for six months starting from October 2011 until March 2012. The results showed the existence of some wells in Sinjar which are not fit for agriculture ,irrigation ,drinking even for industry according to international and Iraqi standards. Since the concentration of salts in which increased to reach in one of those to 4750 milimose / cm .and the Chloride reached to 910mg/L in these well , and some are valid for all purposes .