An Assessment Of Groundwater Quality Using Water Quality Index In Ennore, Neighbourhood Chennai

IJEP 41(6): 703-710 : Vol. 41 Issue. 6 (June 2021)

Eshanthini and Nandhakumar S.*

Sathyabama Institute of Science and Technology, Department of Civil Engineering, Chennai – 600 119, Tamil Nadu, India


The water quality index (WQI) plays a vital role in determining the drinking water quality in an urban, rural and industrial area. WQI is defined as an index reflecting the composite influence of different water quality parameters which is considered and taken for calculation of the water quality index. In the present study, ten groundwater samples were collected from the Ennore area in the neighbourhood Chennai, Tamil Nadu, India. The thirteen water quality parameters have been considered for the calculation of water quality index, namely pH, electrical conductivity (EC), total hardness (TH), total dissolved solids (TDS), total alkalinity (TA), sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg+), nitrate (NO3), bicarbonate (HCO3), chloride (Cl), sulphate (SO42–). In this study Bureau of Indian Standard has been used to assess the suitability of groundwater for drinking purposes and for the calculation of WQI.


Ennore, Groundwater quality, Physico-chemical parameters, Water quality index, Water pollution


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