After any typhoon, the water going into waterworks fed by the Shihmen Reservoir is full of mud, the settling tanks become silt tanks, and the water discharge pipes become sand discharge pipes. "It's as if the waterworks had turned into a sand merchant's," says a staff member in the water resources department at one waterworks.
颱風過後，靠著石門水庫挹注水源的淨水廠，進水盡是泥巴，蓄水池成了蓄砂池，排水管成了排砂管，「淨水廠好像成了砂石廠」，淨水廠水源股職員說。