<b>Quality Assessment of Water in Municipal Solid Waste Dumpsite Area</b> The focus of this study is to assess the contribution of waste dumping in water pollution. Water samples were collected from the nearby Htein Pin open dumping site in Yangon, lake, tube wells, river and leachate were analyzed and observed contamination. It has been found that most of the parameters of water are not in the acceptable limit in accordance with the WHO drinking guide lines. It is concluded that the contamination is due to the solid waste that are dumped in the area. Water Sample, Open dumping site, Solid waste, Contamination 439-442 Issue-5 Volume-2 Khin Win | Ni Ni Win