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 7.24 - Near-Surface Disposal Facility Operation and Disposal Site Closure

Current through Register Vol. 48, No. 6, June 28, 2024
7.24.1
				Wastes designated as Class A pursuant to 3.25.1 of these regulations shall be
				segregated from other wastes by placing in disposal units which are sufficiently
				separated from disposal units for the other waste classes so that any interaction
				between Class A wastes and other wastes will not result in the failure to meet the
				performance objectives of this part. This segregation is not necessary for Class A
				wastes if they meet the stability requirements in 3.25.2.2 of these
				regulations.
7.24.2 Waste designated as
				Class C pursuant to 3.25.1 of these regulations shall be disposed of so that the top
				of the waste is a minimum of 5 meters below the top surface of the cover or must be
				disposed of with intruder barriers that are designed to protect against an
				inadvertent intrusion for at least 500 years.
7.24.3 Except as provided in 7.24.12, only waste
				classified as Class A, B, or C shall be acceptable for near-surface disposal. All
				waste shall be disposed of in accordance with requirements of 7.24.4 through
				7.24.11.
7.24.4 Wastes shall be emplaced
				in a manner that maintains the package integrity during emplacement, minimizes the
				void spaces between packages, and permits the void spaces to be filled.
7.24.5 Void spaces between waste packages shall be
				filled with earth or other material to reduce future subsidence within the
				fill.
7.24.6 Waste shall be placed and
				covered in a manner that limits the radiation dose rate at the surface of the cover
				to levels that at a minimum will permit the licensee to comply with all provisions
				of 3.4 of these regulations at the time the license is transferred pursuant to
				7.15.
7.24.7 The boundaries and
				locations of each disposal unit shall be accurately located and mapped by means of a
				land survey. Nearsurface disposal units shall be marked in such a way that the
				boundaries of each unit can be easily defined. Three (3) permanent survey marker
				control points, referenced to U.S. Geological Survey (USGS) or National Geodetic
				Survey (NGS) survey control stations, shall be established on the site to facilitate
				surveys. The USGS or NGS control stations shall provide horizontal and vertical
				controls as checked against USGS or NGS record files.
7.24.8 A buffer zone of land shall be maintained
				between any buried waste and the disposal site boundary and beneath the disposed
				waste. The buffer zone shall be of adequate dimensions to carry out environmental
				monitoring activities specified in 7.25.4 and take mitigative measures if
				needed.
7.24.9 Closure and stabilization
				measures as set forth in the approved site closure plan shall be carried out as each
				disposal unit is filled and covered.
7.24.10 Active waste disposal operations shall not
				have an adverse effect on completed closure and stabilization measures.
7.24.11 Only wastes containing or contaminated
				with radioactive material shall be disposed of at the disposal site.
7.24.12 Proposals for disposal of waste that is
				not generally acceptable for near-surface disposal because the waste form and
				disposal methods must be different and, in general, more stringent than those
				specified for Class C waste, may be submitted to the Department for
				approval.