GROUNDWATER INVESTIGATION USING GEOPHYSICAL METHODS- A CASE STUDY OF PYDIBHIMAVARAM INDUSTRIAL AREA

G.VenkataRao, P.Kalpana, R. Srinivasa Rao

Abstract: A geophysical investigation involving the vertical electrical sounding (VES) electrical resistivity methods was carried out around Pydibhimavaram Industrial area Srikakulam district Andhra Pradesh. Vertical Electrical Sounding (VES) using Schlumberger array was conducted at thirteen (13) VES stations. The study was carried out with a view to determine the subsurface layer parameters (resistivity’s and thicknesses) and use same to categorize the ground-water potential of the study area. The field data obtained have been analyzed using computer software (IPI2win) which gives an automatic interpretation of the apparent resistivity. The interpretation of results showed that major portion of the study area was three layer formations. A vast range of resistivities and their corresponding thicknesses were obtained. Pseudo sections and Geo-electric Sections were generated using Surfer software. The pseudo-sections revealed that the North West (NW) and South West (SW) regions are comparatively more weathered than the other parts

Keywords: Vertical Electrical Sounding (VES), Industrial area, resistivity, Soil layers & Geo- electric sections

DOI: https://doi.org/10.15623/ijret.2014.0328003