Water quality parameters

Unit

Sampling station (SS)

Max.

Min.

Avg.

Stand. Dev.

SS-1

SS-2

SS-3

pH

-

7.27

7.35

7.49

7.49

7.27

7.37

0.09

DO

mg/l

0.74

0.79

0.69

0.79

0.69

0.74

0.04

BOD5

mg/l

59

126

226

226

59

137.00

68.62

COD

mg/l

320

420

435

435

320

391.67

51.04

TDS

mg/l

1800

1950

2525

2525

1800

2091.67

312.47

TSS

mg/l

120

150

190

190

120

153.33

28.67

Hardness as CaCO3

mg/l

148

128

116

148

116

130.67

13.20

Alkalinity as CaCO3

mg/l

357

370

310

370

310

345.67

25.77

Chloride

mg/l

1325

1250

1570

1570

1250

1381.67

136.65

Nitrate

mg/l

12

11

17

17

11

13.33

2.62

Phosphate

mg/l

8.74

9.89

16.75

16.75

8.74

11.79

3.54

Sulfate

mg/l

156

154

180

180

154

163.33

11.81

Iron

mg/l

0.98

1

1.2

1.2

0.98

1.06

0.10

Electrical Conductivity

µS/cm

1785

1965

2145

2145

1785

1965

146.97

Color

Pt.Co

478

503

615

615

478

532

59.57

Turbidity

NTU

42

65

93

93

42

66.67

20.85

E. Coli

Nos/100 ml

49,333

48,256

59,825

59,825

48,256

52,471

5218

Total Coliform

Nos/100 ml

70,000

65,800

98,050

98,050

65,800

77,950

14,315