In common usage, the term water table expresses the surface dividing the unsaturated and saturated groundwater zones. More accurately, the water table lies within the saturated zone and separates the capillary fringe from the underlying phreatic zone....

The top or upper surface of the saturated zone of water that occurs underground, except where it is confined by an overlying impermeable layer. This surface separates the zone of aeration—the layer of soil or rock that is unsaturated most of the...

A measurement of how a particular water level is affected by the withdrawal of groundwater. It is made by establishing the vertical distance at a given point between the original water level and the pumping water level. The water table of an unconfined...

Surface of a body of underground water below which the soil or rocks are permanently saturated with water. The water table separates the groundwater zone (zone of saturation) that lies below it from the zone of aeration that lies above it. The water...

The level below which the ground is saturated. A well will fill to the level of the water table. The level may be variable over time for a given location dependent on the nature of the ground, although some sub-strata can create water tables of...

The soil zone above the water table in contact with the...

The upper limit of the saturation zone of an...

The water table or phreatic surface is the surface where the water pressure is equal to atmospheric pressure. A sustainable amount of water within a unit of sediment or rock, below the water table, in the phreatic zone is called an aquifer. The ability...