Hydrogeochemical analysis was carried out to assess the suitability of groundwater for drinking, domestic, agriculture and industrial purposes in Sivagangai district, which is economically backward district of Tamil Nadu, India. Seventy ground water samples were collected during pre and postmonsoon season in the year 2017 from all over the district and analyzed for hydrogen ion activity, electrical conductivity, total dissolved solids, total hardness, Ca, Mg, Na, K, Cl, CO₃, HCO₃, SO₄, total nitrate, and F. All the analytical results are compared with the corresponding guideline values of drinking water standards and the results show that groundwater in most part of the study area is potable except for a few locations in both seasons. The groundwater geochemistry is mostly controlled by rock water interaction and evaporation processes in both seasons as revealed from the Gibbs plot. The irrigation water quality parameters such as SAR, Na% and RSC results show that some of the groundwater samples are fit for agriculture. It is ascertained through hydrogeochemical analysis that the quality of groundwater is appropriate for drinking, domestic use, agriculture as well as industrial purpose and it can be utilized for industrial development to improve the socioeconomic status of the study area.

印度泰米尔纳德邦经济落后地区 Sivagangai 地区进行了水文地球化学分析，以评估地下水对饮用水、生活、农业和工业用途的适宜性。2017 年季风前后从全区采集了 70 份地下水样品，分析了氢离子活度、电导率、总溶解固体、总硬度、Ca、Mg、Na、K、Cl、CO ₃、 HCO ₃ , SO ₄、总硝酸盐和F。所有的分析结果与相应的饮用水标准指导值进行了比较，结果表明，除了少数地点，研究区大部分地区的地下水在两个季节都是可饮用的。从 Gibbs 图可以看出，地下水地球化学主要受两个季节的岩水相互作用和蒸发过程控制。灌溉水质参数如 SAR、Na% 和 RSC 结果表明一些地下水样品适合农业。通过水文地球化学分析，确定地下水水质适宜饮用、生活、农业和工业用途，可用于工业发展，改善研究区的社会经济状况。