1, water supply safety: the rainwater collection area of the reservoir is about 370 square kilometers, the total storage capacity is about 1. 1 1 100 million cubic meters, and the storage capacity of Xingli is about 75 10/00 million cubic meters. The construction of Pingyi Reservoir Project is to ensure the water supply security, food security, flood control security and ecological security in Xiushan County.

2. Development demand: The planned water supply area covers the central city of Xiushan County and six towns (streets) including Guanzhuang Street, longchi town, Shiye Town, Hong 'an Town, Errong Town and Yajiang Town. After completion, it can provide domestic water for 568,000 permanent residents and 22 million tourists, and production water for Xiushan Industrial Park, which greatly improves the water supply security in Xiushan County.