Parameter

Average values for

borehole water

WHO standard [9]

NSDWQ NIS.554: [12]

maximum. permitted Levels

Remark

Total iron (mg/L)

0.02

0.3

0.3

Pass

Turbidity (NTU)

5.8

5.0

5.0

Fail

TDS (mg/L)

17.13

500

500

Satisfactory

pH

5.82

6.5 - 8.5

6.5 - 8.5

Pass

Temperature (˚C)

29.5

27 - 28

Ambient

Fail

Hardness (mg/L)

29.0

500

500

Pass

Nitrate (mg/L)

2.29

3.0

50

Pass

Nitrite (mg/L)

0.00

1.0

0.2

Pass

Free residual chlorine (mg/L)

0.00

0.2 - 0.25

0.2 - 0.25

Satisfactory