Groundwater resource evaluation in the western part of Kushtia district of Bangladesh using vertical electrical sounding technique

Abstract

Geoelectrical sounding, borehole litholog, and groundwater data have been used for the exploration of groundwater resources in the western part of greater Kushtia district, Bangladesh. This study aimed to delineate the boundary and the depth of aquifers, and assess their vulnerability to near-surface contaminants. Fourteen geoelectrical sounding data are interpreted and the corresponding geoelectrical logs are correlated with the available nearby horehole lithologs. Four distinct geoelectrical layers are identified within the depth of 105 m, namely thin topsoil (8.0-97.6 Ωm, 0.5-3.6 m), conductive clay-silt-sand layer (8.6-27.5 Ωm, 1.3-49.4 m), medium resistive fine grained aquifer (25.8-45.0 Ωm, 10.1-30.4 m), and high-resistive coarse grained water-bearing aquifer (35.0-64.9 Ωm, 30.0-76.9 m).The shallow aquifer (third layer) is found to occur at a depth ranging between 1.7 and 51 m, whereas the deeper aquifer (fourth layer) is found to occur within the depth between 14 and 52 m, both saturated with water. The groundwater resistivity and formation resistivity factor in the study area is found to vary from 15 to 30 Ωm and 1.93 to 2.68, respectively. The narrow low-protective layer has made the shallow aquifer highly vulnerable to surface contaminant in the study area.

Identification of Aquifer Properties in the Eastern Part of Kushtia District, Bangladesh

“…Several research works have been carried out by several authors in and around the study area. Groundwater potentiality was investigated in term of aquifer system Haque et al 2011), subsurface formation (Haque & Hasan, 2002), hydrogeological properties (Islam et al 2001), quantitative and qualitative assessment of aquifer system (Uddin et al 2001;Shahinuzzaman et al, 2002), integrated hydrogeological and geophysical approach (Haque, 2008;Alibuddin, 2018), Geoelectrical sounding, borehole litholog and groundwater data (Haque et al, 2014). Journal of Geoscience and Environment Protection Further, groundwater flow and balance were studied for the assessment of groundwater abstraction (Sharmin et al, 2010a).…”

Karakteristik Akuifer Wilayah Kepesisiran Parangtritis, Kabupaten Bantul

“…Pengukuran geolistrik dilakukan dengan metode Vertical Electrical Sounding (VES), konfigurasi Schlumberger (Gambar 2). Pemilihan metode VES disebabkan karena metode ini cocok untuk menganalisis karakter akuifer secara vertikal dan memungkinkan dilakukannya analisis untuk akuifer yang tebal (Purnama dkk., 2013a;Haque et al, 2014).…”

Identification of Potential Groundwater Bearing Zones by Hydrostratigrafic Analysis in the Eastern Part of Kushtia District

“…Several research works have been carried out by several authors in and around the study area. Groundwater potentiality were investigated in term of aquifer system [6], subsurface formation [7], hydrogeological properties [8], Geoelectrical sounding, borehole litholog and groundwater data [9]. All the previous researches were mostly focused on the overall assessment of hydrogeology of the area.…”