North Carolina Administrative Code › Title 15A - Environmental Quality › Chapter 02 - Environmental Management › Subchapter C - WELL CONSTRUCTION STANDARDS › Section .0200 - CRITERIA AND STANDARDS APPLICABLE TO INJECTION WELLS › Section 02C .0204 - DEFINITIONS

Current through Register Vol. 39, No. 2, July 15, 2024
In addition to the terms defined in Rule .0102 of this
					 Subchapter, the following terms and phrases apply:
(1) "Abandonment or Plugging Record" means a
				  listing of permanent or temporary abandonment of a well and may contain a well
				  log or description of amounts and types of abandonment material used, the
				  method employed for abandonment, a description of formation location, formation
				  thickness, and location of abandonment structures.
(2) "Aquifer Storage and Recovery Well (ASR)"
				  means a well that is used to inject potable water for the purposes of
				  subsurface storage and for later recovery of the injected water.
(3) "Area of Review" means the area around an
				  injection well as specified in each applicable rule.
(4) "Best intended usage" means best usage as
				  used in 15A NCAC 02L .0201 for each
				  groundwater classification.
(5)
				  "Catastrophic Collapse" means the collapse of overlying strata caused by
				  removal of underlying materials.
(6) "Closed-Loop Geothermal Well System"
				  means a system of continuous piping, part of which is installed in the
				  subsurface via vertical or angled borings, through which moves a fluid that
				  does not exit the piping, but is used to transfer heat energy between the
				  subsurface and the fluid in association with a heating and cooling system. A
				  variation of this type of system consists of the continuous piping emplaced
				  into a water supply well such that the standing column of groundwater serves as
				  the heat transfer medium.
(7)
				  "Closed-Loop Groundwater Remediation System" is as defined in
				  G.S.
				  143-215.1A.
(8) "Cluster" means two or more geothermal
				  injection wells connected to the same manifold or header of a geothermal
				  heating and cooling system.
(9)
				  "Confined or Enclosed Space" means any space that has a restricted means of
				  entry and exit and is subject to the accumulation of toxic or flammable
				  contaminants or has an oxygen deficient atmosphere.
(10) "Confining Zone" means a geological
				  formation, group of formations, or part of a formation that is capable of
				  limiting movement of groundwater.
(11) "Contaminant" is as defined in
				  15A NCAC
				  02L .0102.
(12) "Flow Rate" means the volume per unit
				  time of a fluid moving past a fixed reference point.
(13) "Fluid" means a material or substance
				  which is capable of flowing whether in a semisolid, liquid, sludge, gas, or
				  other form or state.
(14)
				  "Formation Fluid" means fluid present in a formation under natural conditions.
				  This shall not include introduced fluids, such as drilling mud and grout, used
				  to facilitate the construction or development of a well.
(15) "Generator" means any person, identified
				  by site location, whose act or process produces hazardous waste.
(16) "Groundwaters" mean those waters
				  occurring in the subsurface under saturated conditions.
(17) "Hazardous Waste" means any solid,
				  semisolid, liquid, or contained gaseous waste or combination thereof that,
				  because of its quantity, concentration, or physical, chemical or infectious
				  characteristic, may:
(a) cause or contribute
				  to an increase in mortality or an increase in serious irreversible or
				  incapacitating reversible illness; or
(b) pose a present or potential hazard to
				  human health or the environment when improperly treated, stored, transported,
				  disposed of, or otherwise managed.