Groundwater is an important source for drinking water supply in hard rock terrain of Bundelkhand massif particularly in District Mahoba, Uttar Pradesh, India. An attempt has been made in this work to understand the suitability of groundwater for human consumption. The parameters like pH, electrical conductivity, total dissolved solids, alkalinity, total hardness, calcium, magnesium, sodium, potassium, bicarbonate, sulfate, chloride, fluoride, nitrate, copper, manganese, silver, zinc, iron and nickel were analysed to estimate the groundwater quality. The water quality index (WQI) has been applied to categorize the water quality viz: excellent, good, poor, etc. which is quite useful to infer the quality of water to the people and policy makers in the concerned area. The WQI in the study area ranges from 4.75 to 115.93. The overall WQI in the study area indicates that the groundwater is safe and potable except few localized pockets in Charkhari and Jaitpur Blocks. The Hill-Piper Trilinear diagram reveals that the groundwater of the study area falls under Na⁺-Cl⁻, mixed Ca²⁺-Mg²⁺-Cl⁻ and Ca²⁺-\({\text{HCO}}_{3}^{ - }\) types. The granite-gneiss contains orthoclase feldspar and biotite minerals which after weathering yields bicarbonate and chloride rich groundwater. The correlation matrix has been created and analysed to observe their significant impetus on the assessment of groundwater quality. The current study suggests that the groundwater of the area under deteriorated water quality needs treatment before consumption and also to be protected from the perils of geogenic/anthropogenic contamination.

在Bundelkhand地块的坚硬岩石地形中，尤其是在印度北方邦Mahoba地区，地下水是饮用水供应的重要来源。这项工作已尝试了解地下水是否适合人类消费。pH，电导率，总溶解固体，碱度，对总硬度，钙，镁，钠，钾，碳酸氢盐，硫酸盐，氯化物，氟化物，硝酸盐，铜，锰，银，锌，铁和镍进行了分析，以估算地下水质量。水质指数（WQI）已用于对水质进行分类，即优，良，劣等，这对于向有关地区的人民和政策制定者推断水质非常有用。研究区域的WQI范围为4.75至115.93。研究区域的整体水质指数表明，除了Charkhari和Jaitpur区块中的几个局部囊外，地下水安全且可饮用。希尔-派珀三角坐标图揭示了研究区的地下水下娜瀑布⁺ -Cl ^- ，混合的Ca ²⁺ -Mg ²⁺-Cl ^-和Ca ²⁺ - \（{\文本{HCO}} _ {3} ^ { - } \）的类型。花岗岩片麻岩含有原长石长石和黑云母矿物质，风化后可产生富含碳酸氢盐和氯化物的地下水。建立并分析了相关矩阵，以观察其对地下水质量评估的重大推动力。当前的研究表明，水质恶化的地区的地下水需要在消费前进行处理，并且还应避免受到地质/人为污染的危害。