Purpose: This study aims to determine the factors that cause inundation/flooding in Cemarajaya Housing. evaluate existing drainage channels and plan drainage channels for unbuilt blocks and analyze the capacity of the drainage system using the EPA SWMM 5. 1 program. Design/methodology/approach: Based on the simulation results using SWMM. https://www.spidertattooz.com/OPI-GelColor-The-Color-That-Keeps-On-Giving-0-5-oz-HPJ07-p22791/