"Abandoned Well" means a well whose use has been permanently
discontinued or which is in a state of disrepair such that it cannot be used
for its intended purpose or for observation purposes.
"Application" means standard forms for applying for a permit,
including any additions, revisions or modifications.
"Aquifer" means a geologic formation or any part thereof that
is capable of yielding significant water to a well or spring.
"Area of Review" means the zone of endangering influence or
fixed area radius determined in accordance with the provisions of
40 C.F.R.
146.6.
"Background Data" means the constituents or parameters and
the concentrations or measurements which describe water quality and water
quality variability prior to surface or subsurface discharge.
"Barrel" means 42 (U.S.) gallons at 60 degrees F and
atmospheric pressure.
"Casing" means a pipe or tubing of appropriate material, of
varying diameter and weight, lowered into a borehole during or after drilling
in order to support the sides of the hole and thus prevent the walls from
caving, to prevent loss of drilling mud into porous ground, or to prevent
water, gas, or other fluid from entering or leaving the hole.
"Casing Pressure" means the pressure within the casing or
between the casing and tubing at the wellhead.
"Catastrophic Collapse" means the sudden and utter failure of
overlying "strata" caused by removal of underlying materials.
"Cementing" means the operation whereby a cement slurry is
pumped into a drilled hole and/or forced behind the casing.
"Cesspool" means a "drywell" that receives untreated sanitary
waste containing human excreta, and which sometimes has an open bottom and/or
perforated sides.
"Confining Bed" means a body of impermeable or distinctly
less permeable material stratigraphically adjacent to one or more
aquifers.
"Confining Zone" means a geological formation, group of
formations, or part of a formation that is capable of limiting fluid movement
above an injection zone.
"Contaminant" means any physical, chemical, biological, or
radiological substance or matter in water.
"Conventional Mine" means an open pit or underground
excavation for the production of minerals.
"Disposal Well" means a well used for the disposal of fluids
into a subsurface stratum.
"Drilling Mud" means mud of not less than 36 viscosity
(A.P.I. Full Funnel Method) and a weight of not less than nine pounds per
gallon.
"Drywell" means a well, other than an improved sinkhole or
subsurface fluid distribution system, completed above the water table so that
its bottom and sides are typically dry except when receiving fluids.
"Exempted Aquifer" means an aquifer or its portion that meets
the criteria in the definition of "underground source of drinking water" but
which has been exempted according to the procedures of
40
C.F.R. 144.7.
"Existing Injection Well" means an "injection well" other
than a "new injection well."
"Experimental Technology" means a technology which has not
been proven feasible under the conditions in which it is being tested.
"Fault" means a surface or zone of rock fracture along which
there has been a displacement.
"Flow Rate" means the volume per time unit given to the flow
of gases or other fluid substance which emerges from an orifice, pump, turbine
or passes along a conduit or channel.
"Fluid" means material or substance which flows or moves
whether in a semisolid, liquid, sludge, gas, or any other form or state.
"Formation" means a body of rock characterized by a degree of
lithologic homogeneity which is prevailingly, but not necessarily, tabular and
is mappable on the earth's surface or traceable in the subsurface.
"Formation Fluid" means "fluid" present in a "formation"
under natural conditions as opposed to introduced fluids, such as drilling
mud.
"Generator" means any person, by site location, whose act or
process produces hazardous waste identified or listed in 40 C.F.R. Part
261.
"Groundwater" means water below the ground surface in a zone
of saturation.
"Ground water protection area" refers to the drinking water
source protection zones for ground water sources delineated by the Utah
Division of Drinking Water according to Utah Administrative Code R309-600 -
Drinking Water Source Protection For Ground-Water Sources.
"Hazardous Waste" means a hazardous waste as defined in
R315-2-3.
"Hazardous Waste Management Facility" means all contiguous
land, structures, other appurtenances, and improvements on the land used for
treating, storing, or disposing of hazardous waste. A facility may consist of
several treatment, storage, or disposal operational units (for example, one or
more landfills, surface impoundments, or combination of them).
"Improved sinkhole" means a naturally occurring karst
depression or other natural crevice found in volcanic terrain and other
geologic settings which have been modified by man for the purpose of directing
and emplacing fluids into the subsurface.
"Injection Well" means a well into which fluids are being
injected for subsurface emplacement of the fluids.
"Injection Zone" means a geological "formation," group of
formations, or part of a formation receiving fluids through a well.
"Large underground domestic wastewater disposal system" means
a large underground domestic wastewater disposal system (as defined in
R317-1-1.16) for emplacing treated domestic wastewater into the subsurface and
which is designed for a capacity of greater than 5,000 gallons per day
"Lithology" means the description of rocks on the basis of
their physical and chemical characteristics.
"Monitoring Well" means a well used to measure groundwater
levels and to obtain water samples for water quality analysis.
"New Injection Well" means an injection well which began
injection after January 19, 1983.
"Packer" means a device lowered into a well to produce a
fluid-tight seal within the casing.
"Plugging" means the act or process of stopping the flow of
water, oil, or gas into or out of a formation through a borehole or well
penetrating that formation.
"Plugging Record" means a systematic listing of permanent or
temporary abandonment of water, oil, gas, test, exploration and waste injection
wells, and may contain a well log, description of amounts and types of plugging
material used, the method employed for plugging, a description of formations
which are sealed and a graphic log of the well showing formation location,
formation thickness, and location of plugging structures.
"Point of injection" means the last accessible sampling point
prior to waste fluids being released into the subsurface environment through a
Class V injection well. For example, the point of injection of a Class V septic
system might be the distribution box - the last accessible sampling point
before the waste fluids drain into the underlying soils. For a dry well, it is
likely to be the well bore itself.
"Pressure" means the total load or force per unit area acting
on a surface.
"Project" means a group of wells in a single
operation.
"Professional Engineer" means any person qualified to
practice engineering before the public in the state of Utah and professionally
registered as required under the Professional Engineers and Professional Land
Surveyors Licensing Act Rules (UAC R156-22).
"Professional Geologist" means any person qualified to
practice geology before the public in the state of Utah and professionally
registered as required under the Professional Geologist Licensing Act Rules
(UAC R156-76).
"Radioactive Waste" means any waste which contains
radioactive material in concentrations which exceed those listed in 10 C.F.R.
Part 20, Appendix B, Table II Column 2.
"Sanitary waste" means liquid or solid wastes originating
solely from humans and human activities, such as wastes collected from toilets,
showers, wash basins, sinks used for cleaning domestic areas, sinks used for
food preparation, clothes washing operations, and sinks or washing machines
where food and beverage serving dishes, glasses, and utensils are cleaned.
Sources of these wastes may include single or multiple residences, hotels and
motels, restaurants, bunkhouses, schools, ranger stations, crew quarters, guard
stations, campgrounds, picnic grounds, day-use recreation areas, other
commercial facilities, and industrial facilities provided the waste is not
mixed with industrial waste.
"Septic system" means a "well" that is used to emplace
sanitary waste below the surface and is typically comprised of a septic tank
and subsurface fluid distribution system or disposal system.
"Stratum" (plural strata) means a single sedimentary bed or
layer, regardless of thickness, that consists of generally the same kind of
rock material.
"Subsidence" means the lowering of the natural land surface
in response to earth movements; lowering of fluid pressure; removal of
underlying supporting material by mining or solution of solids, either
artificially or from natural causes; compaction due to wetting
(Hydrocompaction); oxidation of organic matter in soils; or added load on the
land surface.
"Subsurface fluid distribution system" means an assemblage of
perforated pipes, drain tiles, or other similar mechanisms intended to
distribute fluids below the surface of the ground.
"Surface Casing" means the first string of well casing to be
installed in the well.
"Total Dissolved Solids (TDS)" means the total residue
(filterable) as determined by use of the method specified in 40 C.F.R. Part 136
Table 1B.
"Transferee" means the owner or operator receiving ownership
and/or operational control of the well.
"Transferor" means the owner or operator transferring
ownership and/or operational control of the well.
"Underground Injection" means a "well injection".
"Underground Sources of Drinking Water (USDW)" means an
aquifer or its portion which:
A.
Supplies any public water system, or which contains a sufficient quantity of
ground water to supply a public water system; and
1. currently supplies drinking water for
human consumption; or
2. contains
fewer than 10,000 mg/l total dissolved solids (TDS); and
B. is not an
exempted aquifer. (See Section
7-4).
"Well" means a bored, drilled or driven shaft whose depth is
greater than the largest surface dimension; or a dug hole whose depth is
greater than the largest surface dimension; or an improved sinkhole; or a
subsurface fluid distribution system.
"Well Injection" means the subsurface emplacement of fluids
through a well.
"Well Monitoring" means the measurement, by on-site
instruments or laboratory methods, of the quality of water in a well.
"Well Plug" means a watertight and gas-tight seal installed
in a borehole or well to prevent movement of fluids.
"Well Stimulation" means several processes used to clean the
well bore, enlarge channels, and increase pore space in the interval to be
injected thus making it possible for wastewater to move more readily into the
formation, and includes:
(1)
surging;
(2) jetting;
(3) blasting;
(4) acidizing; and
(5) hydraulic fracturing.
