Assesing Jakarta Water Provision Planning

Abstract

This study aims to understand Jakarta’s water supply structure and is a part of research on Jakarta’s water supply provision planning. Our analysis on a 14-year water balance estimation, statistic and archival analysis, as well as policy and institutional analysis identify that the metropolitan dependence on groundwater is immense; about 65% of water needs are supplied by groundwater and this has caused critical land subsidence in many areas including in the business center. Several projects to shift from groundwater to surface water have been carried out, and this study concluded that when these projects were to be completed in 2030, the number of people served by centralized piped water will be increased and the dependence on groundwater could be reduced. But at the same time, the reliance on supply from areas far from the city for centralized piped water system will also increase. To increase Jakarta water security, water supply provision planning should focus on processing local water.