The fifth volume of Water Supply and Drainage Manual clearly stipulates that the location of urban sewage treatment plants should be more than 300 meters away from residential areas. Generally speaking, the safety protection distance will be put forward in the EIA documents of sewage treatment plants and garbage incineration plants. Technical standard for sanitary landfill of municipal solid waste (C 17 1988) requires that the landfill of municipal solid waste be more than 800 meters away from residential areas. Because it is difficult for many cities to choose the site of domestic waste landfill according to the requirement of 800 meters, the revised standards such as Pollution Control Standard of Domestic Waste Landfill (B 1689 1997) require domestic waste.