P. ESHANTHINI, P. VIJAYALAKSHMI AND P.K. RAJI
Abstract
Ground water serves as the main source of the water in the urban environment, which is used for drinking, industrial and domestic purposes. The water quality index (WQI) is a simple and important tool to determine the drinking water quality in urban, rural and industrial area. In the present study, ten groundwater samples were collected from Ennore area is neighborhood Chennai,Tamil Nadu in India. The thirteen water quality parameters have been considered for the calculation of water quality index viz. pH, electrical conductivity (EC), total hardness (TH), total dissolved solid (TDS), Total (TA), alkalinity, sodium (Na+), potassium (K+), calcium (Ca2+),magnesium (Mg2+), nitrates (NO3"), bicarbonate (HCO3â), chlorides (Clâ), sulphates (SO42-).The Bureau of Indian Standard (BIS, 2012) has been considered to assess the suitability of ground water for drinking purposes and for the calculation of WQI.