Investigation of the Aquifer Protective Capacity and Groundwater Quality around Some Open Dumpsites in Sapele Delta State, Nigeria

Table 3

First-order geoelectric parameter and Dar Zarrouk parameter of the study area.

S. no.	Protecting layers	Protecting layers resistivity	Thickness			Longitudinal conductivity of protecting layers = hT/R	Protective capacity rating
VES 1	1	41.5	1.5	53.75	48.8	0.9079	Good
	2	17.1	4.4
	3	142.7	13.8
	4	13.7	29.1
VES 2	1	18.0	1.0	36.17	15	0.4147	Moderate
	2	75.8	3.8
	3	14.7	10.2
VES 3	1	26.0	1.0	184.7	40.6	0.2198	Moderate
	2	62.5	6.0
	3	25.4	16.9
	4	70.8	16.7
VES 4	1	65.1	1.0	57.15	7	0.1225	Weak
	2	49.2	6.0
VES 5	1	45.6	1.0	60.6	43.2	0.7129	Good
	2	78.5	7.0
	3	35.0	16.2
	4	83.3	19.0
VES 6	1	41.9	1.0	161.3	24.4	0.6909	Moderate
	2	81.8	7.3
	3	37.6	16.1
	4	89.5	18.8
VES 7	1	71.8	0.1	147.7	139.13	0.3004	Moderate
	2	235.3	5.8
	3	127.1	15.6
	4	122.3	20.3
VES 8	1	207.0	1.0	207	1	0.0048	Poor
VES 9	1	312.1	1.1	312.1	1.1	0.0035	Poor