What does the term "water table" primarily refer to?

The term "water table" primarily refers to the depth of groundwater. The water table is the upper boundary of groundwater, indicating the depth at which soil or rock becomes saturated with water. This level can fluctuate based on various factors, including precipitation, evaporation, and human activities such as water extraction. Understanding the water table is crucial in real estate and land use, as it affects water availability for agricultural and residential purposes, influences construction practices, and impacts zoning regulations. While the use of underground water is related, it does not directly define what the water table is; instead, it refers to the applications of the water found below the water table.