Abstract: This study which was carried between June 2009 and May 2010 highlights the results of periodic monitoring of surface water in a man-made river in Saudi Arabia. The samples were analyzed for pH, electric conductivity, total dissolved solids, alkalinity, metals and inorganic ions. The water quality varied depending on the time of the year and the site studied. In some sites, it exhibited poor water quality as the result of effluent discharge from small-scale industries. The study results is likely to serve as a baseline/benchmark for future evaluation of surface water pollution in similar streams in Saudi Arabia.