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

Table 5

Concentration of constituents in groundwater in the study area.

Borehole	pH	EC (μS/cm)	Temperature (°C) (mg/L)	TDS (mg/L)	NH^4+ (mg/L)	Al^3+ (mg/L)	Zn^2+ (mg/L)	Ni^2+ (mg/L)	Fe^2+ (mg/L)	Pb^2+ (mg/L)	Cd^2+ (mg/L)
BH1	6.81	88.42	28.50	82.45	0.08	0.07	0.70	0.45	0.76	0.79	0.17
	6.50	86.21	28.42	82.22	0.06	0.07	0.60	0.43	0.76	0.78	0.16
BH2	6.73	98.54	28.81	99.62	0.05	0.08	0.40	0.37	0.73	0.79	0.19
	6.60	95.26	28.80	96.12	0.04	0.06	0.40	0.35	0.71	0.76	0.17
BH3	6.81	94.45	28.23	88.62	0.08	0.07	0.50	0.48	0.67	0.74	0.16
	6.57	96.12	28.16	87.16	0.07	0.06	0.40	0.45	0.65	0.73	0.16
BH4	6.57	87.11	28.45	92.25	0.05	0.06	0.60	0.52	0.75	0.69	0.15
	6.21	82.67	28.34	95.24	0.04	0.05	0.50	0.50	0.75	0.65	0.14
BH5	6.55	91.22	28.13	82.14	0.05	0.05	0.80	0.24	0.36	0.47	0.07
	6.41	89.24	28.12	79.12	0.05	0.04	0.80	0.22	0.35	0.45	0.06
BH6	6.71	94.12	28.76	80.12	0.06	0.08	0.80	0.23	0.39	0.46	0.08
	6.42	93.24	28.56	79.12	0.06	0.07	0.70	0.22	0.35	0.46	0.07
Max	6.70	92.67	28.47	87.53	0.06	0.07	0.63	0.38	0.61	0.66	0.14
Min	6.45	90.12	28.40	86.50	0.05	0.06	0.57	0.36	0.60	0.64	0.13
Range	0.25	2.55	0.07	1.03	0.01	0.01	0.06	0.02	0.01	0.02	0.01
Mean	6.58	91.40	28.44	87.01	0.06	0.07	0.60	0.37	0.61	0.65	0.14
SON permitted limit (2007)	6.5–8.5	1000	25	500	0.5	0.2	3	0.02	0.3	0.01	0.003