Assessing the Groundwater Quality in Urban Areas Using the DEMATEL Method

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The Dhanbad area in Jharkhand, India, is a significant coal mining region located in the middle of the Damodar River basin. The geological composition of the area ranges in age from to Recent, encompassing, granites, pegmatite, and gneisses. These rocks are accompanied by bands of s and amphibolites. In this particular region, groundwater occurrence and movement are primarily restricted to semi weathered/weathered and fractured rocks. The movement of groundwater depends on various factors, including the thickness, size, extent, and openness of the weathered zone, as well as the interconnections of fractures within the rocks. Due to the dynamic nature of groundwater resources, it is susceptible to various factors that can impact its availability and quality. The expansion of irrigation activities, industrialization, and urbanization in the area can have significant implications for the groundwater resources. These activities can lead to increased water demand, contamination risks, and changes in the hydrological balance. Given the importance of groundwater as a vital resource, it becomes crucial to monitor and conserve it effectively. Monitoring techniques, such as hydrological studies, geophysical surveys, and groundwater level measurements, can provide valuable information about the status and behavior of groundwater resources. Conservation efforts may involve implementing sustainable water management practices, promoting water-use efficiency, and controlling pollution sources. By utilizing GIS and available physic-chemical data, the study seeks to generate a comprehensive water quality index map that can assist in making informed decisions regarding water resource management and protection in the Dhanbad area. This understanding can help in developing sustainable strategies to ensure the availability and quality of groundwater in areas like, where natural resources are intricately linked to human activities and industrial development. The variations in the resistivity of water-bearing weathered/fractured rocks in the Dhanbad area depend on the specific geological characteristics of the rocks and their water content. The resistivity refers to the rock's ability to resist the flow of electric current and can provide insights into the rock's porosity and permeability, which are crucial factors for groundwater movement. The depth to groundwater in the area can vary and is typically measured from below ground level. This depth is influenced by factors such as local topography, rainfall patterns, and geological conditions. The presence of active and abandoned coal mines, waste dumps, coal washeries, coking coal plants, and thermal power plants can introduce pollutants into the environment. These pollutants have the potential to contaminate groundwater, affecting its quality and usability. It is important to address these environmental concerns and prioritize the implementation of effective measures to mitigate the impact of coal mining and related activities on groundwater resources. Alternative parameters taken as Total dissolved solid, total hardness, Nitrate, ammonia nitrogen, Fluoride, Fluoride. the first ranking training is obtained with the lowest quality of compensation.