North Dakota Administrative Code › Title 33.1 - Department of Environmental Quality › Article 33.1-25 - Underground Injection Control › Chapter 33.1-25-01 - Underground Injection Control Program › Section 33.1-25-01-01 - Definitions

Current through Supplement No. 393, July, 2024
1. "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.
2. "Area of
				review" means the area of review surrounding an injection well described
				according to the criteria under title 40 CFR part 146, sections 146.6 and
				146.63.
3. "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.
4. "Catastrophic collapse"
				means the sudden and utter failure of overlying strata caused by removal of
				underlying materials.
5. "Cesspool"
				means a drywell that receives untreated sanitary waste containing human excreta
				and which sometimes has an open bottom or perforated sides, or both.
6. "Director" means the director of the
				division of water quality of the department of environmental quality.
7. "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.
8. "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 subsection 2 of section
				33.1-25-01-05.
9. "Fluid" means material or substance which
				flows or moves whether in a semisolid, liquid, sludge, gas, or any other form
				or state.
10. "Formation" means a
				body of rock characterized by a degree of lithologic homogeneity which is
				prevailing, but not necessarily, tabular and is mappable on the earth's surface
				or traceable in the subsurface.
11.
				"Hazardous waste" means a hazardous waste as defined under title 40 CFR part
				261, section 261.3.
12. "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.
13. "Injection zone"
				means a geological formation, group of formations, or part of a formation
				receiving fluids through a well.
14. "Packer" means a device lowered into a
				well to produce a fluidtight seal.
15. "Plugging" means the act or process of
				stopping the flow of water, oil, or gas into and out of a formation through a
				borehole or well penetrating that formation.
16. "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 drywell, it is likely to be the well bore itself.
17. "Radioactive waste" means any waste which
				contains radioactive material in concentrations which exceed those listed under
				title 10 CFR part 20, appendix B, table II, column 2.
18. "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.
19. "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.
20. "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.
21. "Well" means a bored,
				drilled or driven shaft, or a dug hole, whose depth is greater than the largest
				surface dimension; or an improved sinkhole; or a subsurface fluid distribution
				system.
22. "Well injection" means
				the subsurface emplacement of fluids through a well.
General Authority:
NDCC 61-28-04; S.L. 2017,
					 ch. 199, § 1
Law Implemented:
NDCC
					 61-28-04