Well, Flowing. A well that discharges water at the surface
without the aid or application of a pump or other lifting
Well, Gravel-Packed. A type of well in which the sand adjacent
to the well screen has been removed and replaced by gravel.
Well Log. A chronological record of the soil and rock
formations encountered in the operation of sinking a well, with
either their thickness or the elevation of the top and bottom of
each formation given. It also usually includes statements about
the lithologic composition and water-bearing characteristics of
each formation, static and pumping water levels, and well yield.
Well Point. A device, consisting of a perforated metal tube or
screen attached to a jetting or driving head end, to permit
passage of water.
Well Screen. A special form of slotted or perforated well
casing that admits water from an aquifer consisting of
unconsolidated granular material, while preventing the granular
material from entering the well.
Well, Subartesian. A nonflowing well in which the water rises
by hydrostatic pressure above the saturation zone, but not to
the land surface.
Yield, Safe. The maximum dependable draft which can be made
continuously upon a source of water supply (surface or
groundwater) during a period of years in which the probable
driest period or greatest deficiency in water supply is likely
Zeolite Process. The process of softening water by passing it
through a substance known in general as a zeolite, which
exchanges sodium ions for hardness constituents in the water.
NAVY - YD2
NAVY - YD2
AF - 50
ARMY - CE