Taking another look at the map of Taiwan, the whole of Greater Taipei only has only one large river system--the Tanshui River. Its lower reaches are already severely polluted, and sources of pollution are constantly moving further upstream. But Greater Taipei residents 'demand for water is burgeoning, and in fact the fates of the Feitsui and Shihmen reservoirs--one young, one old--are closely linked.
回到台灣地圖上再看清楚，整個大台北只有一個淡水河系，下游已遭嚴重汙染，汙染源不斷往上溯，大台北人對水的索求又有增無減，翡翠水庫與石門水庫這一老、一少，其實命運相繫。