Ga. Comp. R. & Regs. R. 391-3-2-.02 - Definitions
All terms used in this Chapter shall be interpreted in accordance with the definitions set forth in the Ground Water Use Act, (O.C.G.A. 12-5-90 et seq.), and as otherwise herein defined:
(a)
"Aquifer" means a geologic formation, group of such formations, or a part of
such a formation that is water bearing. An aquifer may consist of a stratum or
zone of rock below the surface of the earth capable of containing and producing
water as from a well. (Authority O.C.G.A. Section
12-5-92(1))
(b) "Consumptive use" means any use of water
withdrawn from the ground other than "nonconsumptive use" as herein
defined.
(c) "Nonconsumptive use"
means the use of water withdrawn from the ground water system or aquifer in
such a manner that it is returned to the ground water system or aquifer from
which it was withdrawn without substantial diminution in quantity or
substantial impairment in quality at or near the point from which it was
withdrawn.
(d) "Farm use" means
irrigation of any land used for general farming, forage, aquaculture, pasture,
turf production, orchards, or tree and ornamental nurseries; provisions for
water supply for farm animals, poultry farming, or any other activity conducted
in the course of a farming operation. Farm use shall also include the
processing of perishable agricultural products and the irrigation of
recreational turf except in Chatham, Effingham, Bryan, and Glynn counties where
irrigation of recreational turf shall not be considered a farm use. (Authority
O.C.G.A. Section
12-5-92, paragraph 5.1)
(e) "Division" means the Environmental
Protection Division of the Department of Natural Resources.
(f) "Drawdown" means the extent to which the
ground water level is being lowered when a well is being pumped or when the
water is discharging from a flowing well, and is the difference, in feet,
between the static water level and pumping level.
(g) "Geologic Information" means the
information relative to the origin, history of the rock, which includes a
description of the lithology, age, stratigraphic sequence, structural
relationship, areal distribution and thickness of the rock at or be low the
surface of the earth, and which is obtained by examination of the rock exposed
at the ground surface and from well cuttings, well cores, and geophysical
logging from drilled wells.
(h)
"Hydrologic information" means information related to water standing or moving
in porous media and includes hydraulic conductivity, transmissivity, porosity,
storage coefficient, specific capacity, chemical quality of the water,
potentiometric surface, water recharge of the rock at or below the surface of
the earth, water levels, drawdown, and radius of influence of the cone of
depression in areas of ground water withdrawal, and which is obtained by
pumping tests, flowmeter, laboratory tests, water surface measurements,
observation wells, and accepted mathematical formulas.
(i) "Pumping level" means the distance, in
feet, from the land surface or other permanent specified datum, preferably the
top of the casing to the water surface (water level) in the well when water is
being pumped from the well.
(j)
"Rock" means the material that forms the essential part of the earth's solid
crust, and includes loose, incoherent masses, such as a bed of sand, gravel,
clay or volcanic ash, as well as firm, hard, solid masses of granite,
metamorphics, sandstone, limestone, and shale.
(k) "Specific conductance" means the water's
capacity to convey an electric current and is related to the total
concentration of the ionized substances in the water and the temperature at
which the measurement is made and is generally reported as micromhos/cm or
microSiemens/cm.
(l) "Static water
level" means the distance, in feet, from the land surface or other permanent
specified datum, preferably the top of the casing, to the water level in a well
or to the pressure head (shut-in head) after the flow is shut off from a
flowing well, when no water is being pumped from the well and the water level
has reached equilibrium.
(m) "Water
table" means the surface of an unconfined water body at which the pressure is
atmospheric. It is defined by the levels at which water stands in wells that
penetrate the water body far enough to hold standing water.
(n) "Monthly average withdrawal" means the
total amount of water pumped by a water source or water system in any one month
of the same year in which the "annual average withdrawal" is measured, divided
by the number of days in that month. This amount is expressed in gallons per
day (gpd).
(o) "Annual average
withdrawal" means the total yearly amount of water pumped by a water source or
water system divided by the number of days in that year. This amount is
expressed in gallons per day (gpd).
(p) "Maximum day withdrawal" means the
highest total amount of water pumped by a water source or water system in a
24-hour period. This amount is expressed in gallons per day (gpd).
(q) "Design pumping capacity" means the
actual rate that a well pump will produce water at the time the well pump was
installed. This rate will vary with the horsepower of the pump motor, total
dynamic head, and size of discharge pipe.
(r) "Chemigation" means the injection of
chemicals, fertilizers, fungicides, herbicides, insecticides, or nematicides
into irrigation water.
(s)
"Unaccounted for Water" (UAW) means the difference between the total amount of
water pumped into the water system from the source(s) and the amount of metered
water use by the customers of the water system expressed as a percentage of the
total water pumped into the system. UAW generally includes system leakage and
unmetered uses such as fire fighting, flushing, broken water mains,
etc.
Notes
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