Perancangan Sumur Resapan Pada Bangunan Rumah Tinggal Di Daerah Jalan Nusa Indah, Condongcatur, Depok, Sleman, Yogyakarta

Abstract

The widespread construction of commercial and non-commercial buildings in the area of Nusa Indah Street, Condongcatur, Depok, Sleman, Yogyakarta has led to the diversion of green land functions as natural drainage. So it is necessary to take mitigation measures in the form of construction of infiltration wells to reduce ground runoff and as a medium for water conservation. The primary data used are the area of the house building and the value of soil infiltration which is measured using a ring infiltrometer. While the secondary data used in the form of rainfall data for the 10-year return period from the nearest rain station to the research location. The infiltration well analysis was calculated using the SNI method and the Sunjoto method. Then choose a more efficient method and compare the differences in surface runoff before and after there is an infiltration well. Based on the results of the analysis, the SNI method is more efficient in terms of quantity and dimensions. The number and dimensions of infiltration wells at the 2nd test location were 4 infiltration wells with a diameter of 1 m with a depth of 3 m. The rest of the other locations obtained the same number of infiltration wells and dimensions, namely 1 infiltration well with a diameter of 1 m with a depth of 2 m. The shape of the infiltration well is a circle with watertight walls. The reduction of surface runoff obtained varies from 74.727% to 97.738%