PREDIKSI KEDALAMAN AKUIFER DAN KUALITAS AIR TANAH DENGAN MENGGUNAAN METODE GEOLISTRIK KONFIGURASI WENNER DI KELURAHAN DELIMA KECAMATAN BINAWIDYA KOTA PEKANBARU

Abstract

The condition of an inundated and non inundated area is influenced by geology of a particular area. This will affect the condition of the aquifer layer. This research aims to identify the groundwater aquifer layers and quality. Measurements was conducted in Delima Village, Binawidya Distric using the Wenner configuration geoelectric method on two tracks with different geological conditions, which are inundated and not inundated with a measurement distance from the starting point of approximately 150 meters and 100 meters. The analyzed parameters for groundwater quality tests are pH, Turbidity, TDS, COD and Total Coliform. Based on the result of data processing for the first track the aquifer layer is at a depth of 9,26-15,9 meters and a thickness of 6,6 meters with a resistivity value of 22,8-267 Ωm. The second aquifer track is found at a depth of 7,46-9,56 meters and a thickness of 2,1 meters with a resistivity value of 49,3-299 Ωm. Based on the result of soil Physics analysis, the permeability show that the Litology of the subsurface layers is dominated by sandstone layers with the value of 6,01-6,04 cm/hour. All analyzed water samples is still meet the requirements for clean water quality except water quality of total coliform bacterial parameters from the sample track 2 which exceeds clean water quality standards.