Groundwater monitoring is the process of regularly checking the quality and quantity of water found underground. This is important because groundwater supplies drinking water for many communities and supports agriculture. Monitoring helps identify changes in water levels and contamination, ensuring that the water remains safe for use. To monitor groundwater, various methods are used, including observation wells and water sampling. Data collected from these methods can reveal trends over time, such as the effects of drought or pollution. By understanding these changes, authorities can make informed decisions to protect and manage this vital resource.