The Analysis of Ground Water Availability and Utility in DKI Jakarta

AbstractAs a densely-populated city, the Special Capital Region Jakarta finds that the availability of its groundwater becomes more and more critical every day. This Study analyzes the availability of ground water in Jakarta and projects it for years 2030. The methods used are system dynamics and overlay method with Geographic Information System. Based on its physical conditions, included land use changes in Jakarta, study conducted 10 sample sub-districts area in Jakarta. Study results show that the largest decrease of ground water availability occurs in Jagakarsa with 76,92% decreases in 10 years. The smallest decreases occur in Cempaka Putih with 0,8%, while the average decreases of 10 sample sub-districts area reach 34% in 10 years. The best intervention scenario conducted on the ground water availability a model show that increases of Ground water availability with the addition of the State's Drinking Water Company performance, the addition of 30% green space and the addition of groundwater taxes efficiency