Dry season

Rainy season

parameters

factor 1

factor 2

factor 1

factor 2

colour

0.9841

−0.1775

0.9976

0.0691

turbidity

0.9865

−0.1637

−0.9761

0.2176

TSS

0.9997

−0.1637

0.9994

0.0345

T-Hardness

0.8648

−0.0238

−0.5793

0.8151

T-Iron

−0.9995

0.5021

0.263

0.9648

Alkalinity

0.9985

0.0324

−0.6876

−0.7261

COD

0.9889

−0.0546

−0.424

−0.9056

BOD

0.8903

0.1484

−0.4162

−0.9093

DO

0.9997

−0.4555

−0.6324

−0.7746

pH

−0.689

0.0226

0.9934

0.1148

TDS

−0.9968

−0.7248

−0.8188

−0.5741

E.C

−0.94

0.0795

−0.9988

−0.0492

salinity

−0.9995

0.3411

−0.9787

−0.2053

temperature

−0.8143

0.0316

0.9308

−0.3654

NH3-N

0.4175

0.5804

−0.7406

0.6719

sulphate

0.7972

0.9087

−0.9233

0.3842

Mg

0.518

0.6038

−0.925

0.3799

Ca

−0.9973

−0.8554

−0.9312

0.3646

Mn

0.9448

0.0737

−0.9853

0.1708

Eigen value

15.4346

0.3275

13.1508

5.8492

Variance (%)

81.235

18.765

69.215

30.785

Cummulative (%)

81.235

100

69.215

100