Table 4 Correlation coefficient matrix of the groundwater quality (^#n = 111) parameters

pH

1.000

0.068

0.353**

-0.100

0.579*

-0.258

-0.168

0.082

0.129

0.039

-0.025

EC

1.000

-0.196

0.911*

0.672*

0.533*

0.637*

0.942*

0.694*

0.730*

0.507*

F⁻

1.000

-0.279

0.150

-0.215

-0.287

-0.208

-0.058

-0.072

-0.040

Cl⁻

1.000

0.437**

0.372**

0.644*

0.893*

0.570*

0.576*

0.485*

HCO₃⁻

1.000

0.103

0.205

0.627*

0.565*

0.536*

0.181

SO₄²⁻

1.000

0.184

0.510*

0.408**

0.395**

0.268

NO₃⁻

1.000

0.521*

0.371**

0.623*

0.696*

Ca²⁺

1.000

0.591*

0.549*

0.434**

Mg²⁺

1.000

0.285

0.264

Na⁺

1.000

0.490*

K⁺

1.000