Kondisi Cekungan Airtanah Wates Pra Konstruksi Bandara Internasional Temon Kulon Progo, Daerah Istimewa Yogyakarta

Abstract

Underground water is a component in the hydrological cycle which takes place in nature, formed by rainwater that seeped into the soil in the recharge area and flows through the media layer of rock that acts as a carrier layer of water (aquifer) in ground water basin, which is under the ground leading to discharge area. Water basin's grounwater includes the Wates District, Temon, Panjatan, Lendah, Brosot, a little part of the the District Sentolo and Pengasih located in Unit Plateau of volcanics fluvio, beach units and sand dunes with the alluvial material consisting of sand, gravel, silt, and clay, flat morphology, relatively lithology and groundwater characteristics. This lithology is potential with the occurrence of groundwater conservation system changes, if there is excessive ground water extraction in the region which can be characterized by the increase in salinity in ground water. The main object of this study is to assess the full qualitative and quantitative groundwater in the Basin Groundwater Wates International Airport due to Temon airport construction in relation to maintaining the sustainability of groundwater systems. The methods in this study consists of several steps, starting from observation and rock's/soil discribtion include : measurement of rock bedding, measurement of geological structural elements, observation of morphological conditions, and sampling soil/rock to be tested in laboratory about the content of the mineralogy, texture and structure. The cross-section will shown information quantity/amount of groundwater that exist in the area of researc and the identification of the coast towards the potential intrusion of sea water. The results of mineralogical analysis of rocks and hydrochemical groundwater will provide information on the distribution of groundwater quality. This quality conditions will certainly change with the start of construction of the airport and after construction of the airport. Information about the mineralogical content of rocks, hydrochemical content of water and aquifer configuration will be able to contribute to efforts in the area of groundwater International Airport Temon, DIY