Definitions for "PERCHED WATER TABLE"
The upper surface of an isolated body of groundwater that is perched above and separated from the main body of groundwater by an aquiclude.
A quantity of groundwater that lies above the regional water table because an underlying lens of impermeable rock or sediment prevents the water from sinking down to the regional water table.
Perched Water Table - Occurs when a low permeability material, located above the water table, blocks or intercepts the downward flow of water from the land surface. Water mounds up above the impermeable material, creating another saturated zone with a water table.