The role of groundwater in irrigation and drinking purposes and sustaining growth in economy is well-known. Groundwater is generally less susceptible to contamination and pollution when compared to surface water bodies. This paper is based on extensive investigations on the spatial and seasonal representative measurement of chemical parameters from 80 dug wells of Churu and adjoining Bikaner districts of Rajasthan, India. The region has dearth of water resources — both surface and sub-surface, with the main source of water being the dug wells. The application of hydro-statistical techniques and tools like Pearson’s correlation coefficient, relative activity of sodium ion (SAR), Wilcox diagram, Piper diagram and magnesium hazard indicate that the chemical parameters of the water of the study region is of very poor quality and not suitable for drinking and irrigation purposes. Wilcox diagram shows high sodium content, can destroy the soil structure rendering the soil and water unsuitable.

众所周知，地下水在灌溉和饮用目的以及维持经济增长中的作用。与地表水体相比，地下水通常不易受到污染和污染。本文是基于对印度Churu以及毗邻印度Rajasthan的Bikaner区的80口挖井的化学参数的空间和季节代表性测量进行的广泛调查的基础上进行的。该地区的地表水和地下水都缺乏，主要的水源是挖井。水文统计技术和工具的应用，例如Pearson相关系数，钠离子相对活性（SAR），Wilcox图，吹笛图和镁危害表明该研究区域的水的化学参数质量很差，不适合饮用和灌溉。威尔科克斯图显示钠含量高，会破坏土壤结构，使土壤和水变得不合适。