Forecasting The Quality of Manikandam Lake in Trichy Using Gis Techniques

Surface and ground water are the important source of drinking water. Groundwater has become a necessary resource over the past decades because of increasing usage for drinking, water supply, irrigation and industrial uses etc. Surface water resource is now facing threats due to various anthropogenic activities. As that of quantity the Surface water quality is equally important. Mapping and modeling of spatial variability of Surface water and its quality is of vital important and it is particularly significant where Surface water is primary source of portable water. The present study on Surface water quality modeling, relates it to the water quality maps prepared using Remote Sensing and GIS techniques for a study area in Manikandam lake of Trichy district. Thematic map has been collected and digitized using Arc GIS software version10.1.Collected ground water samples are analyzed through physico-chemical analysis at pre-determined location of study area which form the attribute database for the study. From the statistical analysis, the Surface water quality is represented and compared with CPCB permissible limit to establish the quality.