Groundwater sampling is the process of collecting water from underground sources to analyze its quality and composition. This is typically done using specialized equipment, such as piezometers or monitoring wells, which allow access to the water table. Samples are taken to test for contaminants, minerals, and other substances that may affect the water's safety and usability. The data gathered from groundwater sampling is crucial for environmental assessments, public health, and resource management. It helps identify pollution sources, track changes over time, and ensure that groundwater meets safety standards for drinking and agricultural use. Proper sampling techniques are essential for accurate results.