Sincere thanks are directed to the Mobil Oil Indonesia, UNESCO Jakarta Office as well as Gadjah Mada University and Indonesian Geologist Association for the sponsorship, which makes the delegates possible to participate the conference. Support from the Department of Geological Engineering as well as the Laboratory of Environmental Geology and Geothermal Research Center at Gadjah Mada University are really appreciated. Thanks to be extended to the German Foundation for International Development Program (DSE-ZOV) that had provided some new knowledge and skill for the enhancement of the teaching method, which significantly inspire the delegate in the paper preparation and presentation. Finally, sincere thanks  is also directed to Mr. Untung Sudarsono at the Directorate of Environmental Geology for his sound encouragement.