Spatial Variability of Major Ion Geochemistry in Groundwater from Uttar Mand Sub-Basin of Krishna River Basin, Maharashtra (India)

This study was carried out to investigate the current status of groundwater quality and spatial hydrochemical changes in groundwater from Uttar Mand sub-basin of Krishna River Basin, Maharashtra (India). For this study, 100 groundwater samples were collected from wells and bore wells distributed in the study area and analyzed physicochemical parameters viz. pH, total dissolved solid (TDS), total hardness (TH), major ions (Ca2+, Mg2+, Na+, K+, HCO3−, SO42−, Cl−), and Boron. The data use for the present study is two post-monsoon seasons (November 2014 and November 2015) and two pre-monsoon seasons (May 2015 and May 2016). GIS approach was adopted to describe the physicochemical parameters and hydrochemistry of groundwater. The spatial attributes of the watershed were digitized and employed in overlay analyses. The data of routine parameters (EC, pH and TDS), cations and anions were processed in Arc-GIS software. The spatial distribution maps assist to determine suitable places for groundwater development and management. This work concluded that comprehensive assessment of groundwater quality would help for proper management and planning for future water need.