WELL CAPACITY

Maximum rate at which a well will yield water under given conditions

WELL DEVELOPMENT

Application of a surging or brushing process to a well to draw fine material from the aquifer and increase its discharge capacity.

WELL DRILLER

Any person duly licensed that constructs a well for compensation or otherwise.

WELL DRILLING RIG OPERATOR

A person who physically operates well drilling equipment under the direction of a licensed well driller.

WELL FIELD

Tract of land that contains a number of wells for supplying a large municipality, irrigation district or a heat exchange system.

WELL INTERFERENCE

Effects of neighboring pumping wells on the discharge and drawdown at a particular pumping well.

WELL LOG

Official report of well construction submitted by well drillers which includes a description of the various formations and rock materials and the depths at which they are encountered.

WELL-BEING

A state of existence that fulfils various human needs, including material living conditions and quality of life, as well as the ability to pursue one’s goals, to thrive, and feel satisfied with one’s life. Ecosystem well-being refers to the ability of ecosystems to maintain their diversity and quality.

WELLHEAD

1) source of a well or stream. 2) physical structure, facility, or device at the land surface from or through which ground water flows or is pumped from subsurface, water-bearing formations.

WESTERN STATES AIR RESOURCES COUNSEL (WESTAR)

Formed to serve as a forum to discuss western regional air quality issues of common concern and share resources for the common benefit of the 15 member states, including Arizona, and extending from Alaska to New Mexico and from Hawaii to North Dakota and South Dakota.