Abstract
Besides being used as groundwater recharge, infiltration wells function as runoff controllers. This study aims to analyze the runoff of apartment and hotel buildings in Semarang City. The method used to calculate rain intensity is the Mononobe method. The value of the flow coefficient is calculated using the Hassing method, while the standard used to calculate infiltration wells is SNI 03-2453-2002 concerning infiltration wells. Based on groundwater depth and soil permeability, seven apartment and hotel buildings are not suitable for implementing infiltration wells, namely: H2, H3, H4, H5, H6, H8, and H10. The remaining three buildings are feasible, namely: H1, H7, and H9. Runoff discharges in apartment and hotel buildings in Semarang City that are eligible to use infiltration wells are H1 at 0.13 m3/sec, H7 at 0.18 m3/sec, and H9 at 0.10 m3/sec. While the discharge of water that seeps through the infiltration wells with a minimum permeability of 0.168 m/hour is 1.71 m3/hour and the value of the discharge of water that seeps through the infiltration wells with a maximum permeability of 5.083 m/hour is 51.89 m3/hour.
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