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"ABSTRAKJakarta lies in low-lying deltas served by the Ciliwung River and many other small rivers. Due to overpopulation in Jakarta, green open spaces are diminishing. Since infiltration capacities of land in Jakarta have decreased, surface runoff has become more extensive. As a result, Jakarta is often stricken by flood disasters which affect human life, property, and urban infrastructures. The objectives of this study are to identify and develop mitigation strategies during flood disasters for communities and urban infrastructures, including facilities that supply water for daily use as well as drinking water, and also sanitation facilities. Primary data was collected during field surveys, while secondary data represents information obtained from relevant literature. The results of this study show that the average height of water during flooding was about 1 meter, and the highest level reported as 4 meters. The time required to fully drain the flooding areas is typically about five days. However, the degree of damage to buildings andproperty is relatively minor during a flood. The study also reveals that residents who have lived in their houses more than 25 years generally had been hit by floods at least two times. Thus, these communities demonstrated that they had learned from their experiences to preparethemselves for future flooding to reduce the extent of damage, suffering, and loss. Public guidelines for mitigating damages caused by flood disasters should be developed and followed with communication and explanation to the communities within the various regions of Jakarta.The water supply facilities, such as reservoirs, and sanitation facilities should ensure that water tanks are made available to every shelter and campground, and that permanent public toilets are provided."

"The potential of surface water supply in Cicatih-Cimandiri watershed is apparent as river flows along the year and catered from abundant spring waters. This potential water resources e used for various uses of deomestic, industry municipal, and agriculture. Increasing water requirements in the area in the last decade, with growing bottled water industries , water supply needs to be calculated more accurately. To determine river flow discharge, an AWLR (automatic water level recorder) was installed at one of the tributory, Cibojong, based on scoring analysis, there are two parameters (density of drainage network and maximum stream order) that have significant influence to surface water supply. Results of analysis indicated that proportions of the two parameters contributing to river discharge were balanced. To optimize water allocation, irrigation scheduling schemes was exercised to support existing rice field practices. Beside that, total water supply for 15 sub-districts in Cicatih-Cimandiri watershed ranges from 69.637 MCM to 336.177 MCM in dry season and ranges about double in west season. Total irrigated rice area in the 15 sub-districts was about 15.093 ha (BPS Survey , 2007) therefore the potential water supply would be sufficient to support three rice planting seasons."