Introduction:
Dongfeng Reservoir is an important water source for urban residents' living, industry and agriculture in Yuxi City, with a total storage capacity of 90.25 million m3 and a runoff area of 309.5 square kilometers. The main rivers are Jiuxi River, Donghe River and Zhaoyuan River. In recent years, due to the rapid resurgence of catering and aquaculture in the runoff area of the reservoir, pollution and pollutants have increased rapidly, and the water pollution in Dongfeng Reservoir has become more and more serious, which has seriously threatened the drinking water safety of residents in the central city.
According to a recent survey, there are 45 restaurants in the runoff area of Dongfeng Reservoir, 5 more than in 2008. There are 42 farms, an increase of 19 over 2008; 5 red brick factories; There is a landfill at 13 km of the Old yujiang county Highway in Jiuxi Town. Among the 45 catering business households, there are no business licenses 17 households and no hygiene licenses 19 households.