WATER! WATER! HOW SAFE?

INTRODUCTION

Water is the fountain head of life. For the development of human societies,

water should be available in the acceptable quantity and quality.

NEED

In city everybody uses packaged drinking water.

To compare packaged drinking water requirement of Urban and Rural people.

METHODOLOGY

Survey in Varthur village - 22kms away from the city.

Analysis of water samples from bore well and public taps.

Data collected

Out of 72 houses, 43 houses use packaged water.

10 houses are using aqua guard.

Hypotheses

People in Varthur prefer packaged drinking water because tap water is hard and contaminated.

Water sampling parameters Obtained Values Permissible Limits

Sampling Point

Bore well

Tap

Calcium(mg/L) 125.85 32.06 75

Hardness(mg/L) 761.2 733.2 -250/mg/L

Chloride(mg/L) 665.41 748.91 250

Turbidity(NTU) <10 <10 Should not be greater than 10 NTU

Phosphate(mg/L) 0.053 0.025 0.03

Sodium(mg/L) 238 420 200

Potassium(mg/L) 9 197 No limit specified

DATA ANALYSIS

Water is hard High concentration of Sodium and Chloride Bore well sample shows high concentration

of Calcium and Phosphate

RESULT

Proved villagers’ statement

CONCLUSION

Drinking water treatment plant to be established.

Water sources should be protected.