A GIS-based Interpolation Technique to Predict Urban Ground Water Quality

Abstract: The freshwater resources of our country include groundwater as a significant component. It is essential to supplying the country's numerous user-sectors with the water they need. Without first evaluating the water quality, the natural resource cannot be used and maintained in an optimum manner. Using ArcMap 9.3, a base map has been created after the data gathering. In order to create thematic maps that demonstrate the distribution of different water quality criteria, after doing an analysis, the water quality information is used as an attribute database. The water quality index has been calculated using a number of variables, such as pH, turbidity, total hardness (TH), chloride, total dissolved solids (TDS), calcium, nitrate, iron, and fluoride. A map of the Water Quality Index is also created. In order to better comprehend the current water quality situation in the research region, the data are provided as maps. Analysis shows that the area's groundwater has to undergo field-specific treatment before being used.