Analysis of Groundwater Quality Using Statistical Techniques: A Case Study of Dholpur District, Rajasthan (INDIA)

Abstract

The study was conducted to evaluate the groundwater quality of Dholpur district, Rajasthan, (India). Groundwater samples were collected from 40 different locations in summer, winter and rainy seasons during the year of 2014 to 2015 and analyzed the water quality parameters. The variability of physicochemical parameters in groundwater can be measured with high coefficient of variance. The correlation between dependent and independent variables was determined using statistical analysis. It was observed from correlation analysis that moderate correlations exist between EC and TDS also between TDS and total hardness. In 100% of the samples, alkalinity concentration recorded higher than maximum permissible limit prescribed by BIS: IS: 10500: 2012. The concentration of electrical conductivity (EC), total dissolved solids (TDS), nitrate (NO₃^-), Iron (Fe) and Lead (Pb) were also found above the standard limits prescribed by BIS. This reveals deterioration of water quality. It is therefore, suggested to take up regular monitoring of groundwater in areas of Dholpur district.