Determination of an optimal interpolation technique to represent the spatial distribution of groundwater quality at urban and peri-urban areas of Proddatur, Y.S.R district, Andhra Pradesh, India

The preliminary aim of the present study is to analyze the spatial variability of ground water quality parameters in Proddatur, India. Geostatistical analysis is a quintessential commodity to understand the ground water quality parameters and their physico chemical characteristics. The present study was conducted to analyse and assess the groundwater quality from samples collected from 43 bore holes in Proddatur, YSR district of Andhra Pradesh. Physico chemical analysis was conducted on the samples and spatial statistical analysis was performed on the data procured. Geostatistical techniques, such as Inverse Distance Weighting, Radial Basis Function, and Ordinary Kriging, were employed to generate surface maps after selecting the best fit among the three techniques. The key physico chemical parameters, such as pH, Total Hardness, Calcium, Magnesium, Chloride, Fluoride and Alkalinity, were systematically analysed and statistical treatment was conducted on them. A multivariate analysis was also conducted.