This paper explores the use of diametrically aligned vertical electric sounding VES in assessing homogeneity and anisotropy in layered sedimentary soils and in weathered rock formation. Both Wenner and schlumberger electrode configurations were used in the sedimentary and weathered rock formation respectively, and augmented by geotechnical boring to 30m. The Mann-Whitney U-test was applied to the diametrically aligned VES data where the presence of significant differences between the data sets suggested degrees of uniformity in ground resistivity and by extension compositional quality and structure. Similarly, characteristic values of electrical resistivity in diametrically opposite directions of the geo-layers were determined and compared. By evaluating the differences in apparent resistivity at the same depth, a measure of homogeneity was derived. Various degrees of homogeneity were established at both the sedimentary and weathered formation.