There are 67 permanent stormwater pumping stations in Taipei City. In addition, to resolve the inundation problem in undeveloped areas, such as Guandu and Shezidao, there are 21 temporary stormwater pumping stations. Altogether, there are 88 stormwater pumping stations in the city with 427 pumping units and a total pumping capacity at 2,244 m3/sec, equivalent to the volume of one standard swimming pool.