Authors : Purwanto , K. Sari Bahagiarti, Suharsono and Prajna Catra Pramodana
Abstract: Groundwater basin-Yogyakarta, Sleman as part of Sleman, Yogyakarta and Bantul in geomorphology located at Fluvio volcanics plain units, beach plain units and Sand Dune unit consist of with material alluvial deposits. This area has a relatively varied lithology and has a groundwater aquifer characteristics. For instance, lithology has a changing groundwater potential preservation system if there is the excessive extraction of groundwater in the research area it can be characterised by wide fluctuations in water level and changing in groundwater quality. The main objective of this research was to determine the recharge area potential in relation to the preservation of groundwater. The field observation method and description of rock including, the measurement of strike-dip layer of rock, the measurement of geological structure, the condition observation of morphology, the sampling of soil/rock to be tested in laboratory related with the mineralogy content, texture and structure. The physical properties were processed by field tests infiltration and permeability. Based on the researcher it can be seen that the research area of Pakem and Ngemplak as recharge area were good with the infiltration rate of 19-28 mm/h and the permeability of 12×10–2 cm/sec.
Purwanto , K. Sari Bahagiarti, Suharsono and Prajna Catra Pramodana, 2017. The Potential of Recharge Area Based on the Permilabilty and Infiltration Rock Test in the Southern Flank of Mount Merapi, Yogyakarta Indonesia. Journal of Engineering and Applied Sciences, 12: 7140-7143.