Abstract
Water supply system is the infrastructure to ensure the steady economic growth in mountainous areas. According to the characteristics of water supply system in a mountainous area of North China and on the basis of risk source identification, this study establishes a comprehensive risk system of water supply system by selecting 6 links such as water pollution, water pipeline, water treatment chemical residues, natural geology, project management, and tourism area impact and 23 sub-risk factors, and calculates the weight of each factor. The comprehensive evaluation is obtained by combining expert scoring. After evaluation, the risk level of the water supply system is general, and chemical pollution of water source and chemical residues of water treatment are high-level risk factors, which need to be strictly controlled.
