Table 2.

Pearson correlation matrix among the chemical constituents for the groundwater samples.

Variables	K+	Na+	Mg2+	Ca2+	$\mathbf{S}{\mathbf{O}}_{\mathbf{4}}^{\mathbf{2}-}$	Cl−	$\mathbf{H}\mathbf{C}{\mathbf{O}}_{\mathbf{3}}^{-}$	TDS	EC	TH
K	1.00
Na+	0.81	1.00
Mg2+	0.90	0.70	1.00
Ca2+	0.82	0.62	0.78	1.00
$\mathbf{S}{\mathbf{O}}_{\mathbf{4}}^{\mathbf{2}-}$	0.90	0.93	0.84	0.75	1.00
Cl	0.78	0.51	0.88	0.86	0.66	1.00
$\mathbf{H}\mathbf{C}{\mathbf{O}}_{\mathbf{3}}^{-}$	0.60	0.61	0.46	0.71	0.54	0.42	1.00
TDS	0.94	0.87	0.91	0.89	0.95	0.83	0.67	1.00
EC	0.94	0.87	0.91	0.89	0.94	0.83	0.67	0.99	1.00
TH	0.91	0.70	0.93	0.94	0.84	0.92	0.63	0.95	0.96	1.00