Authors:
Adi Suryadi
1
;
Muhammad Habibi
2
;
Batara
3
;
Dewandra Bagus Eka Putra
1
and
Husnul Kausarian
1
Affiliations:
1
Department of Geological Engineering, Universitas Islam Riau, Pekanbaru, Indonesia, Indonesia
;
2
GWS Drilling Engineeering Sdn. Bhd., No. 6 Jalan Metro Perdana Timur 11, Kuala Lumpur, Malaysia, Malaysia
;
3
School of Ocean and Earth Science, Tongji University, Guokang Rd, Yangpu Qu, Shanghai Shi, China
Keyword(s):
2D Electrical Resistivity Imaging (ERI), Dipole-Dipole, Groundwater, Resistivity, Kulim, Malaysia
Abstract:
Water demand in the study area has been increasing by time but surface water is not sufficient to fulfil the
demands. 2D Electrical Resistivity Imaging (ERI) survey was conducted in order to looking for groundwater potential as freshwater alternative resources at Kulim, Kedah, Malaysia. The data acquisition was carried out using 5 meters multi-electrodes spacing with pole-dipole configuration array. The geophysical survey involved both resistivity and chargeability at the same time. The result of 2D Electrical Resistivity Imaging
indicated that the groundwater potential area has low resistivity value with range 10 – 100 Ωm. Groundwater potential zone divided into 2 characteristics which is shallow groundwater zone (>75m in depth) and deep groundwater zone (>100m in depth). The groundwater potential zone covered by high to very high resistivity value. Those high resistivity value 200 – 1000 Ωm interpreted as dry top soil at near surface while at deep zone is interpreted as fresh bedro
ck. Chargeability value of groundwater potential area ranging from 0 up to 8 msec. All interpretation later confirmed by drilling data.
(More)