the auqifer
If the layer of impermeable rock is below the water table, then the water table is likely above the impermeable rock and the groundwater will be trapped above it. If the impermeable rock is above the water table, then the water table is likely below the impermeable rock layer and the groundwater will not be able to pass through it.
Ground water.
Water is typically drawn from a water table, which is the upper surface of groundwater below which the soil or rock is saturated with water. This water table can vary in depth and can be affected by factors such as precipitation, groundwater pumping, and local geology.
According to the USGS, the water table in Houston ranges between 10 and 30 feet below the surface. (See link below). An exception is in Katy, where it is more than 75 feet deep. From personal experience, the water table is about 14 feet below my property--about 1/4 mile from Oyster Creek in Sugar Land.
The permanent water table is the level below the ground where the soil and rock are saturated with water. It represents the boundary between the unsaturated and saturated zones in the ground, and is generally considered as the stable level to which water will rise in a well.
above the water table
a mud table
The water table is the level below the ground where all spaces are filled with water. Wells are structures dug or drilled into the ground to access the water below the water table. The depth of a well is determined by the distance between the water table and the surface.
If the layer of impermeable rock is below the water table, then the water table is likely above the impermeable rock and the groundwater will be trapped above it. If the impermeable rock is above the water table, then the water table is likely below the impermeable rock layer and the groundwater will not be able to pass through it.
If the bottom of a well is above the water table, the well would be dry.
above the water table
the zone of saturation
See the table at link below.
No, most caverns form below the water table. Caverns are typically formed by the dissolution of underground limestone or other soluble rocks by water, and this process usually occurs below the water table where the rocks are saturated with water.
No, the water table is the upper surface of underground water, whereas groundwater refers to the water that is stored below the earth's surface in soil and rock formations. Groundwater exists below the water table and can be pumped to the surface for various uses.
Ground water.
ground water