2D Electrical Imaging Surveys for Leachate Plume Migration at an Old Dump Site in Ibadan South Western Nigeria: A Case Study

Table 1

Layer number	Resistivity	Depth to base	Lithology
1	90.4 Ω-m	1.0 m	Clay
2	36.6 Ω-m	1.8 m	Clay
3	66.4 Ω-m	3.0 m	Clay
4	18.4 Ω-m	1.6 m	Clayey
			weathered basement
5	23.5 Ω-m	19.3 m	Clayey
			weathered basement
6	112.5 Ω-m	—	Fractured/partially
			weathered basement