Parameter (n = 10)

Water source

Min.

Max.

SD

Mean ± SE

CV (%)

p-value

for F test

Guideline

value

Temperature (oC)

Borehole (Nyam. S.S)

22.30

23.50

0.57

22.98 ± 0.29

2.50

0.00

15˚C*

Borehole (Shud. S.S)

21.60

22.90

0.41

22.34 ± 0.13

1.84

Spring (Kisw)

21.30

23.00

0.52

22.38 ± 0.16

2.32

Spring (Kise)

22.60

24.90

0.72

23.45 ± 0.23

3.07

Well ( Kise)

18.50

21.70

1.01

20.79 ± 0.32

4.84

Shallow well (Nyam)

21.70

22.60

0.31

22.17 ± 0.10

1.38

Rainwater

17.20

18.80

0.54

18.07 ± 0.17

2.98

pH

Borehole (Nyam. S.S)

6.19

6.77

0.22

6.37 ± 0.07

3.42

0.00

6.5 - 9.5*

Borehole (Shud. S.S)

5.50

6.53

0.29

5.74 ± 0.09

5.06

Spring (Kisw)

6.17

6.29

0.03

6.21 ± 0.01

0.56

Spring (Kise)

6.65

7.02

0.14

6.77 ± 0.04

2.08

Well ( Kise)

4.49

6.70

0.64

6.31 ± 0.20

10.18

Shallow well (Nyam)

7.23

7.70

0.13

7.54 ± 0.04

1.71

Rainwater

5.80

6.70

0.32

6.21 ± 0.10

5.16

Dissolved Oxygen (mg/L)

Borehole (Nyam. S.S)

5.30

8.60

1.08

7.42 ± 0.34

14.57

0.00

10 - 12 mg/l*

Borehole (Shud. S.S)

5.10

14.20

2.83

10.41 ± 0.90

27.22

Spring (Kisw)

8.00

15.60

3.15

10.28 ± 10

30.61

Spring (Kise)

1.90

6.30

1.20

4.84 ± 0.38

24.76

Well ( Kise)

9.00

18.10

3.01

12.86 ± 0.95

23.37

Shallow well (Nyam)

3.20

6.30

1.01

5.07 ± 0.32

19.86

Rainwater

9.30

10.00

0.22

9.54 ± 0.07

2.33

BOD (mg/L)

Borehole (Nyam. S.S)

4.00

7.00

1.10

5.59 ± 0.35

19.60

0.00

3 - 6 mg/l***

Borehole (Shud. S.S)

3.10

12.00

3.33

7.71 ± 1.05

43.19

Spring (Kisw)

4.00

9.10

1.69

5.98 ± 0.54

28.34

Spring (Kise)

0.50

3.10

0.86

2.16 ± 0.27

39.72

Well ( Kise)

3.20

8.90

2.09

6.72 ± 0.66

31.10

Shallow well (Nyam)

1.80

5.40

1.10

4.14 ± 0.35

26.59

Rainwater

1.30

2.50

0.36

1.83 ± 0.11

19.79

Total Dissolved Solids (mg/L)

Borehole (Nyam. S.S)

256.00

380.00

32.74

297.70 ± 10.35

11.00

0.00

1000 mg/l*

Borehole (Shud. S.S)

272.00

348.00

22.51

298.40 ± 7.12

7.54

Spring (Kisw)

345.00

357.00

3.63

350.10 ± 1.15

1.04

Spring (Kise)

557.00

579.00

6.61

569.20 ± 2.09

1.16

Well ( Kise)

347.00

370.00

6.03

357.90 ± 1.91

1.68

Shallow well (Nyam)

250.00

268.00

5.53

257.80 ± 1.75

2.15

Rainwater

12.00

55.00

13.28

33.40 ± 4.20

39.78