Water is an essential resource and is a basic need for all living beings. A combination of natural and human factors impacts the consistency of water. In compliance with international norms in Padmanabhapuram, District of Kanyakumari, this analysis is projected to study the water suitability for household and irrigation determinations. Eighteen sampling locations with Global Positioning System were surveyed with coordinates. Water quality index (WQI) was developed for evaluating the suitability of water for drinking and irrigation. The results showed that twelve sampling locations are suitable for drinking. The spatial interpolation approach was employed to provide the distribution map of drinking water quality. The integrated map shows that 883,417m² (46.03%) and 950,704m² (49.54%) of area fall under the poor and very poor quality of water, respectively. For drinking purpose, the area of 2725 m² (0.14%) and 7659 m² (0.4%) was covered in excellent and good grade in water quality, respectively. The remaining 74,336 m² (3.87%) of the study area is unsuitable for consumption. Total dissolved solids (TDS), electrical conductivity (EC), sodium adsorption ratio, magnesium hazard, permissible index, residual sodium carbonate (RSC), Kelly’s ratio, % sodium, soluble sodium ratio and geographically distribution maps are prepared to determine the irrigation suitability. TDS and EC are more than the permissible limit at sampling stations (S14, S15 and S16) whereas more RSC values at S8. The Piper trilinear diagram and Durov’s diagram of the hydrogeochemistry analysis show the most significance in the parameter of Ca and Cl whereas less significance in Na and K. In the statistical analysis, TDS and EC are highly correlated with TA, Ca, Na and Cl while less correlated with BOD and COD.

水是一种必不可少的资源，是所有生物的基本需求。自然和人为因素的结合会影响水的稠度。根据 Kanyakumari 区 Padmanabhapuram 的国际规范，该分析预计将研究家庭用水和灌溉用水的适宜性。使用全球定位系统对 18 个采样点进行了坐标测量。水质指数 (WQI) 是为评估饮用水和灌溉用水的适宜性而开发的。结果表明，十二个采样点适合饮用。采用空间插值法提供饮用水水质分布图。综合地图显示did 883,417m ² (46.03%) 和950,704m ²(49.54%) 的区域分别属于较差和极差水质。饮用方面，2725 m ² (0.14%) 和7659 m ² (0.4%) 的水质分别为优和良。其余 74.336 m ²(3.87%) 的研究区域不适合消费。总溶解固体（TDS）、电导率（EC）、钠吸附比、镁危害、允许指数、残留碳酸钠（RSC）、凯利比、钠百分比、可溶性钠比和地理分布图，以确定灌溉适宜性. TDS和EC在采样站（S14、S15和S16）超过允许限值，而在S8更多RSC值。水文地球化学分析的Piper三线图和Durov's图显示Ca和Cl参数最显着，Na和K参数不显着。在统计分析中，TDS和EC与TA、Ca、Na和Cl高度相关，而与 BOD 和 COD 的相关性较小。