Introduction to Private Water Supply Systems 060401a Flashcards
The space between a wells borehole and the outside of the wells casing
Annulus
When water in a well rises higher than the level at which it was found
Artesian Well
An aquifer that has a confining bed above it
Confined aquifer
Beveled or threaded and coupled is commonly used for joining what sizes of steel well casing?
4” through 6”
The amount of influence a well has on its aquifer
Cone of depression
The water level in a well when the well is being used is called what?
Well drawdown
The pipe or pipes in a well that connect downward into the well from the pitless adapter to a pump or pump inlet fittings is a well
Drop pipe
A geological term that relates to rock formations in their solid, massive state
Consolidated formation
A term relating to loose deposits of earth
Unconsolidated formation
The rate at which water flows into a well from its supplying aquifer; usually measured in gallons or litres per minute
Recovery rate
A pipe attached to a pitless adapter to permit the drop pipe or pump to be lifted out of the well
Snare pipe
How many feet from pump centre line makes a well a shallow well?
25 feet
How many feet below pumping level makes a well a deep well?
24 feet
The amount of water a well is capable of supplying at a given time
Well yield
A float or diaphragm operated device that controls the amount of air under atmospheric pressure that is contained in a standard pressure tank?
Air volume control
