Groundwater Assessment Using Geophysical Survey at Insat, Perlis, Malaysia

Abstract

In this study, a 2D geo-electrical resistivity survey was conducted at Institute of Sustainable Agrotechnology (InSAT) Padang Besar, Perlis to locate potential groundwater zone. A set of ABEM Terrameter SAS 400 was used to measure resistivity and chargeability value of 400-meter survey line. Then, the measured data was analysed using RES2DINV software to produce resistivity and chargeability imaging profiles. It was found that, there is one groundwater reservoir detected at a distance of 180 m from left end at distance 0 m. The groundwater reservoir zone was located at 50 m depth below ground surface. The resistivity and chargeability values of this zone varied between 500 to 5000 Ωm and 0 to 2 ms, respectively.