Hydrogeological Study of Labuhan Angin Power Station Landfill Site

Abstract

Hydrogeological study of landfill site of Labuhan Angin power plant was conducted in August 2015. The study is intended to complement the data hydrogeologic of landfill site of Labuhan Angin power plant activities, which is one of the requirements for obtaining permit land filling of hazardous and toxic waste materials originating from own activities. Hydrogeological study of the location of the landfill activities was carried out by using geoelectric method by mean of Wenner - Schlumberger configuration. This method was chosen because the necessary information required is lithologic of rocks and water table conditions at the location of activities. To cover both the location of landfill existing activities and location of the future expansion of the landfill, nine sample traverses were selected. Data of each traverse was processed by Res2DInv, to get a true resistivity of rock under the traverse. The analysis showed that the rock in the location of activities consists of top soil derived from the weathering process, sandy top soil and sea sand. The depth of water table at the site of activities varies from 0.4 m to 2.0 m below ground surface. Difference in depth of water table in this location is due to the topographic difference of the site.