Sanitation on the domestic wastewater management (WWM) component was a severe concern in the slums of Margasari Village, which has two characteristics area, administrative neighborhood above water, and neighborhood on land. The universal access to adequate sanitation was only 35.8%. Therefore, Margasari Village belonged in the priority zone of sanitation risk at a very high level for domestic wastewater problems. The purpose of this research was to identify important factors to increase the adequateness sanitation on the black water domestic WWM in Margasari Village. The questionnaires spread on 345 household samples taken at 32 neighborhoods as the data collection method. Identification factors had done through two stages of analysis. The comparative descriptive analysis used to determine characteristics of the domestic WWM black water type obtained the findings that the neighborhood above water had low users percentage of adequate black water domestic WWM. Second, binary logistic regression analysis was to identify the factors that affect the adequatess domestic WWM of black water type, four significant factors encompassing household income, knowledge level, financing willingness, and ease of technology. Significant factors not only increased adequate sanitation, but also contribute to the development of appropriate environmental and public health policies related to slums settlement.