Vol. 3, Issue 9, Part E (2017)

Abstract
Water is the main source for domestic, engineering, industrial, agricultural and this multipurpose uses affects the surface as well as the groundwater quality. The study area falls within the semiarid region and frequently facing water scarcity and quality problems. The present study generates the primary data to map the spatial variation of groundwater quality in hard rock terrain of Perambalur district. 42 groundwater samples were collected from different bore wells and major cations and anions. The spatial variations of all the physiochemical parameters are generated from the major ions data by using spatial interpolation method of MapInfo 8.5 software. These maps are further classified according to highest desirable, maximum permissible and not permissible prescribed based upon WHO 2011, standard for drinking water. It was observed that the groundwater in the area is hard and alkaline in nature. The study findings also suggest that, the groundwater is of good quality for drinking and is suitable for domestic usage.