Abstract: The research area located in Temon, Kulon Progo. Stratigraphy of the research area is divided into four units of rock namely, Breksi Kaligesing (Oligocene-early Miocene) unit, sandstones Kaligesing (Oligocene-early Miocene) unit, Sentolo limestone (N17-N19) unit (Late Miocene-Early Pliocene) and sandstones unit (Holocene). The airport plan construction planning have a quarter material deposits which make up roughly 80% of the area of research, on the other hand, alluvial beaches and rivers deposit, composed by gravel, sand, silt and clay. The morphology of the terrain and the depth of it is a relatively shallow ground water which is being supported by the physical properties of the soil grain size relatively an uncompact condition and then on the alluvial deposition of research area, there is the potential for intrusion of sea water. The prevention of the intrusion of sea water occurrence can be done, by means of taking of shallow ground water in order to not overdo it, if it is possible to look for the location of the raw water supply for the activities purposes of the airport from another location.