This study was conducted to determine the chemical and physical analysis of two important water sources in the coastal erea, namely: Northern Elkabeer river and Balloran Dam. The study took a year and a half starting from June ١٩٩٩. The temperature the cations and the anions were periodically determined in three sites selected along the river bed. Results showed, that there are a large variations in the concentrations of the studied elements, in both water sources. The same variations were also observed among the three defined sites of the same source according to the ruling climatic factors during the year. The increase in the concentrations of most of chemical elements in water source was observed when the temerature increased. These concentrations generally reach the highest value in the latest Summer and the beginning of Autumn. It was shown that the impact of the biogeochemical factors namely: rainfall and floods, the water drianing from soils and the effect of agricultural and in dustrial waste - water became clear . According to the international and Syrian standards of water chimical qualities, the water of Balloran Dam and ١٦ Tishreen Dam can be used for drinking and irrigation purposes. While water of the tow studied sites on the Elkabeer river can only be used for irrigoation.