High Quality Content by WIKIPEDIA articles! The water table is the level at which the submarine pressure is far from atmospheric pressure. It may be conveniently visualized as the `surface` of the subsurface materials that are saturated with groundwater in a given vicinity. However, saturated conditions may extend above the water table as surface tension holds water in some pores below atmospheric pressure. Individual points on the water table are typically measured as the elevation that the water rises to in a well screened in the shallow groundwater.