MINER'S INCH - [Western United States]

The rate of discharge through an orifice one inch square under a specific head. An old and archaic term used in the western United States and British Columbia, now seldom used except where irrigation or mining water rights are so specified.

State or provincial statute fixes the equivalent flow of a Miner's Inch in cubic feet per second. Four definitions prevail in the fourteen jurisdictions where the term has a legal existence. The volume of water varies considerably when considered as acre feet per annum.

One Miner's Inch is equivalent to:

0.020 cubic foot per second (1/50 cubic foot/sec) in Idaho, Kansas, Nebraska, New Mexico, North Dakota, South Dakota, and Utah (9 gallons per minute, 1.2 cubic feet per minute, or about 34.07 liters per minute); or approximately 14.47 acre feet per annum;

0.025 cubic foot per second (1/40 cubic foot/sec) in Arizona, California, Montana, Nevada, and Oregon (11.22 gallons per minute, or 1.5 cubic feet per minute, or about 42.47 liters per minute); or approximately 18.10 acre feet per annum;

0.026 cubic foot per second in Colorado (11.6875 gallons per minute, or 1.5625 cubic feet per minute, or approximately 44.25 liters per minute); or approximately 18.89 acre feet per annum;

0.028 cubic foot per second in British Columbia (12.5664 U.S. gallons per minute, or 1.68 cubic feet per minute, or approximately 47.56 liters per minute); or approximately 20.41 acre feet per annum.

See also additional information provided by Dr. A. Fay.

CUBIC FOOT

One cubic foot contains 7.48 U.S. gallons [7.480519 gallons]. One U.S. gallon contains 3.78543 liters.

100 U.S. Gallons contain 378.543 liters.

HCF = One hundred cubic feet = 748.0 U.S. gallons or 2,832 liters [exactly 2,831.7 liters].

PIEZOMETER

A Piezometer is device that measures water pressure at a particular location.

Piezometers are instruments used to measure the gradient of groundwater. That is to say that they measure the depth below surface level of ground water. Various forms and arrangements of Piezometers can also be used to measure rate of flow and depth of ground water.

Prepared by Philip R. Abbey on March 12, 1999. Revised 11 March 2004. Comments to pr_abbey@hotmail.com

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