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Sufficient water supply can still be a big challenge in developing countries. A large number of households in Yogyakarta still relay on private dug wells to meet their daily demand. But water from shallow aquifers is prone to pollution from sewage systems, industry and agriculture. To assess the water quality in the basin of Yogyakarta, this study...
Gunung Kidul is located at the southern coast of Java Island, Indonesia and part of the Special Province of Yogyakarta. It is geologically dominated by a tropical cone karst. This karst aquifer is prone to water scarcity close to the surface but has high potential for underground water storage. Water supply and wastewater management in this area are poorly developed which leads to weak economic development and poverty. In 2011, an integrated water management system (IWRM) was installed including a hydro power plant in a karst cave to use the stored karst water to improve the regional water supply in some areas. But still lead extreme drought periods in this region to severe water supply issues. In 2020 a majority of subdistricts applied for clean water distribution. This affected approximately 130'000 inhabitants of the rather low populated area. The national board of disaster management (BPBD) distributed 550 tanks of clean water. The focus of this project is to develop a concept for a sustainable water supply in the future taking into account the effects of climate change on the karst aquifer.