The problems of water quality have become more important than the quantity, as the environmental problems are getting more serious in different parts of the world. A number of factors like geology, soil, effluents, sewage disposal and other environmental conditions in which the water happens to stay or move and interact with ground and biological characteristics. This influences greatly on the groundwater quality of an area. This study is made to evaluate the status of groundwater quality and its suitability to irrigated agriculture. For this study, 44 & 42 observation wells in 2005 and 44 & 39 observation wells in 2008 have been taken into consideration to study the variation in pre & post monsoon season. These observation wells are regularly maintained by Public Works Department of Government of Tamil Nadu. Water quality data are utilized in the present study for the analysis of groundwater chemistry of years 2005 and 2008 for both premonsoon (July) and postmonsoon (December) seasons. Water quality data used in the analysis include Electrical Conductivity (EC), Total Dissolved Solids (TDS), Total Hardness (TH) and Sodium Adsorption Ratio (SAR).
Water quality, SAR, TDS, GIS, Remote sensing
