The upper surface or boundary of a saturated zone that is not confined (i.e., unconfined) by an overlying impermeable geologic layer (i.e., clay).
Saturated geologic material with connected openings that can readily convey adequate quantities of water for useful purposes.
An opening constructed in saturated geologic materials (i.e., aquifer) that is used to remove groundwater in useful quantities.
A well in which the static water level rises above a confined aquifer.
A well in which the static water level rises above the ground surface and naturally flows out of the well.
An aquifer that is confined by an overlying and underlying impermeable geologic layer.
Water that exists in the openings of completely saturated geologic sediments and rocks beneath the land surface.
The openings or voids in geologic materials such as sediments and rocks that is expressed as a percentage respective of the ratio of the volume of the openings to the total volume of the
An aquifer where there is no impermeable layer between the water table and the ground surface.
Groundwater that naturally flows out of saturated geologic materials.
The study of the geologic environments that control the occurrence of groundwater and the physical laws that describe the natural and human-induced flow of groundwater Source: Freeze and Cherry, 1979. Prentice-Hall, Inc., Englewood Cliffs, N.J. pp. 604.
A person who studies the science of hydrogeology with a groundwater flow dynamics and/or water quality emphasis.
Water that occurs above the water table within the pore spaces and other openings of unsaturated soil and geologic material and is held under tension within the openings by capillary forces, surface tension, and adsorption of the water along the surface area of the
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