Estimation of Groundwater Quality in Arid Region or Semiarid Region by Using Statistical Methods and Geographical Information System Technique

Table 2

The coefficients of correlation () between several water quality metric premonsoon.

	pH	EC	TDS	Cl^-	TH	Ca^2+	Mg^2+	HCO3^-	SO4^2-	F^-	NO3^-	PO4	Na	K
pH	1
EC	-0.014	1
TDS	0.014	1. 016	1
Cl^-	0.078	0.583	10.578	1
TH	0.452	0.049	0.083	0.458	1
Ca^2+	0.368	-0.007	0.124	0.059	0.821	1
Mg^2+	0.321	0.092	0.124	0.283	0.783	0.358	1
HCO3^-	0.052	0.0412	0.386	0.093	-0.029	-0.021	-0.051	1
SO4^2-	-0.030	0.364	0.345	-0.042	-0.048	-0.052	-0.016	0.019	1
F^-	0.296	0.223	0.183	-0.049	0.114	0.257	-0.019	0.458	0.082	1
NO3^-	-0.054	0.183	0.189	0.172	-0.546	-0.041	-0.048	0.148	-0.039	-0.049	1
PO4	0.049	-0.026	-0.029	-0.04	-0.058	-0.042	-0.052	0.052	-0.061	0.162	-0.040	1
Na	0.009	0.243	0.243	0.008	0.003	0.049	0.018	0.048	0.269	0.178	0.008	0.002	1
K	0.098	0.021	0.019	0	0.031	0	0.104	0	0.058	0.039	0.007	0.029	0.016	1