Assessment of Groundwater Quality in the Talensi District, Northern Ghana

Table 1

Standards, weights, and relative weights used for WQI computation.

Chemical parameter	Objective to be met (Si) (mg/l)	Weight (wi)	Relative weight (Wi)
pH	7.5	5	0.102
TDS	500	4	0.0816
TH	200	4	0.0816
Ca^2+	200	2	0.0408
Mg^2+	150	2	0.0408
Na^+	200	2	0.0408
K^+	30	2	0.0408
CI^−	250	3	0.0612
	250	3	0.0612
	50	5	0.102
	0.7	4	0.0816
F^−	1.5	5	0.102
Pb	0.01	5	0.102
Fe	0.3	3	0.0612