我省东深供水工程始建于1964年,1965年建成,主要是为解决香港用水需要而建设的跨流域引水工程。随着香港及深圳和沿线地区用水需要的增加,先后进行了三次扩建,供水量由原来的6820万ｍ3/年增加到17.43亿ｍ3/年。但近年来,由于开放式输水河道沿岸污染源的增多,造成供水水质严重下 The Dongshen water supply project in our province was founded in 1964 and completed in 1965. It is mainly for inter-basin diversion works designed to solve the water needs of Hong Kong. With the increase of water demand in Hong Kong, Shenzhen and other areas along the Yangtze River, three expansion projects have been carried out. The water supply has increased from 68.2 million m3 / year to 1.743 billion m3 / year. However, in recent years, due to the increase of pollution sources along the open waterway, the quality of water supply is serious