The investigation shows that in recent years the problems of water pollution in Taoyuan County such as garbage, illegal emission and raw sewage are still happening from time to time, which cause heavy burden of the rivers. The purpose of “Taoyuan water pollution prevention and reformation program” is to stop the public and enterprises polluting the rivers. According to the program, there will be several places being supervised, with the help of monitors we will take photos of illegal pouring and ban those crimes, hoping to maintain pure water quality and clean the river banks. The conservation, operation, examination of water quality, and embellishment of environment toward the four water purification industrial areas in this program will improve the water pollution problems, and lead to the sustainable development. EPA has dealt with Nan-Can Creek and Old-Street Creek in recent years, with the devotion and assistance from the government and society, the efforts have paid off, for example, the footpath, park and bikeway aside the river bank, and the polluted parts have decreased. To eliminate water pollution problems and build a high quality living is the ultimate goal of this program.