Zero Runoff Drainage System for Bintaro Jaya Xchange Mall Project in South Tangerang, Indonesia

Population growth in Indonesia is increasing day by day, especially in South Tangerang. Infrastructure development in the housing and recreation sector has begun to be intensified. One of the areas being developed is Bintaro Xchange Mall Phase II, South Tangerang. In its development, special attention is needed to hydrological problems that can occur such as puddles and even floods. In this study, a drainage system will be planned using the zero runoff concept so as not to provide water runoff into city drains using infiltration wells and rainwater harvesting (RWH). Based on the result of drainage calculations the peak discharge was 0.116 m3/s, therefor to fulfill the zero runoff concept, 106 infiltration wells were built in the area, and used 3 rainwater harvesting to collect water that falls from the roof of the building.