South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-63 - Radioactive Materials (Title A) › Part VII - LICENSING REQUIREMENTS FOR LAND DISPOSAL OF RADIOACTIVE WASTE › Section 61-63.VII.RHA 7.2 - Definitions

Current through Register Vol. 48, No. 6, June 28, 2024
As used in this part:
7.2.1 "Active maintenance" means any significant
				activity needed during the period of institutional control to maintain a reasonable
				assurance that the performance objectives in 7.18 and 7.19 are met. Such active
				maintenance includes ongoing activities such as the pumping and treatment of water
				from a disposal unit or one-time measures such as replacement of a disposal unit
				cover. Active maintenance does not include custodial activities such as repair of
				fencing, repair or replacement of monitoring equipment, revegetation, minor
				additions to soil cover, minor repair of disposal unit covers, and general disposal
				site upkeep such as mowing grass.
7.2.2
				"Buffer zone" means a portion of the disposal site that is controlled by the
				licensee and lies under the disposal units and between the disposal units and the
				boundary of the site.
7.2.3 "Chelating
				agent" means amine polycarboxylic acids, hydroxycarboxylic acids, gluconic acid, and
				polycarboxylic acids.
7.2.4
				"Commencement of construction" means any clearing of land, excavation, or other
				substantial action that would adversely affect the environment of a land disposal
				facility. The term does not mean disposal site exploration, necessary roads for
				disposal site exploration, borings to determine foundation conditions, or other
				preconstruction monitoring or testing to establish background information related to
				the suitability of the disposal site or the protection of environmental
				values.
7.2.5 "Custodial agency" means
				an agency of the government designated to act on behalf of the government owner of
				the disposal site.
7.2.6 "Disposal"
				means the isolation of wastes from the biosphere inhabited by man and his food
				chains by emplacement in a land disposal facility.
7.2.7 "Disposal site" means that portion of a land
				disposal facility which is used for disposal of waste. It consists of disposal units
				and a buffer zone.
7.2.8 "Disposal unit"
				means a discrete portion of the disposal site into which waste is placed for
				disposal. For near-surface disposal, the unit is usually a vault or a
				trench.
7.2.9 "Engineered barrier" means
				a man-made structure or device that is intended to improve the land disposal
				facility's ability to meet the performance objectives in this part. This shall
				include above or below grade vaults or equivalent structures.
7.2.10 "Explosive material" means any chemical
				compound, mixture, or device which produces a substantial instantaneous release of
				gas and heat spontaneously or by contact with sparks or flame.
7.2.11 "Hazardous Waste" means the waste designed
				as hazardous by U.S. Environmental Protection Agency regulations in 40 CFR Part 261
				and waste designed as hazardous by Regulation R.61-79.261.
7.2.12 "Hydrogeologic unit" means any soil or rock
				unit or zone which by virtue of its porosity or permeability, or lack thereof, has a
				distinct influence on the storage or movement of groundwater.
7.2.13 "Inadvertent intruder" means a person who
				might occupy the disposal site after closure and engage in normal activities, such
				as agriculture, dwelling construction, or other pursuits in which an individual
				might be unknowingly exposed to radiation from the waste.
7.2.14 "Intruder barrier" means a sufficient depth
				of cover over the waste that inhibits contact with waste and helps to ensure that
				radiation exposures to an inadvertent intruder will meet the performance objectives
				set forth in this part or engineered structures that provide equivalent protection
				to the inadvertent intruder.
7.2.15
				"Land Disposal Facility" means the land, buildings and structures, and equipment
				which are intended to be used for the disposal of radioactive wastes. For the
				purpose of this part, a "geologic repository" as defined in 10 CFR Part 60 is not
				considered a land disposal facility.
7.2.16 "Monitoring" means observing and making
				measurements to provide data to evaluate the performance and characteristics of the
				disposal site.
7.2.17 "Near-surface
				disposal facility" means a land disposal facility in which waste is disposed of
				within approximately the upper 30 meters of the earth's surface.
7.2.18 "Pyrophoric liquid" means any liquid that
				ignites spontaneously in dry or moist air at or below 130' F (54.4' C). A
				"pyrophoric solid" is any solid material, other than one classed as an explosive,
				which under normal conditions, is liable to cause fires through friction, retained
				heat from manufacturing or processing, or which can be ignited readily and, when
				ignited, burns so vigorously and persistently as to create a serious transportation,
				handling, or disposal hazard. Included are spontaneously combustible and
				water-reactive materials.
7.2.19 "Site
				closure and stabilization" means those actions that are taken upon completion of
				operations that prepare the disposal site for custodial care and that assure that
				the disposal site will remain stable and will not need ongoing active
				maintenance.
7.2.20 "Stability" means
				structural stability.
7.2.21
				"Surveillance" means monitoring and observation of the disposal site for purposes of
				visual detection of need for maintenance, custodial care, evidence of intrusion, and
				compliance with other license and regulatory requirements.
7.2.22 "Waste" means those low-level radioactive
				wastes containing source, special nuclear, or byproduct material that are acceptable
				for disposal in a land disposal facility. For the purposes of this definition,
				low-level radioactive waste means radioactive waste not classified as high-level
				radioactive waste, transuranic waste, spent nuclear fuel, or byproduct material as
				defined in Section1.2.6, paragraphs 2, 3, and 4 of this Regulation.