Document: NRC Regulatory Guide
Document ID: d812c779-c17b-4eb3-9d66-b532cd68bd03
Document Type: regulatory_guide
Title: Decommissioning Planning During Operations + HISTORY - HISTORY 12/2011 – DG-4014 , Proposed New Guide
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1115/ML111590642.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.22
CFR Part: 
CFR Title: 

Content:
rface area concentrations or quantities of radioactive material residual radioactivity—radioactivity in structures, materials, soils, groundwater, and other media at a site resulting from activities under the licensee's control. This includes radioactivity from all licensed and unlicensed sources used by the licensee, but excludes background radiation. significant residual radioactivity—an amount of radioactive material that would require remediation to meet the unrestricted use criteria specified in 10 CFR 20.1402 at the time of decommissioning subsurface—any media below about 15 cm (6 In) from a surface survey—an evaluation of the radiological conditions and potential hazards of radioactive material. When appropriate, such an evaluation includes a physical survey of the location of radioactive material and measurements or calculations of levels of radiation, or concentrations or quantities of radioactive material present. DG-4014, Page 17 REFERENCES3 1. U.S. Nuclear Regulatory Commission, “Decommissioning Planning Rule,” Federal Register, Vol. 76, No. 117, June 17, 2011, pp. 35512-35575. 2. U.S. Nuclear Regulatory Commission, “Radiological Criteria for License Termination,” Federal Register, Vol. 62, No. 139, July 21, 1997, pp. 39057-39095. 3. U.S. Nuclear Regulatory Commission, “Minimization of Contamination and Radioactive Waste Generation: Life-Cycle Planning,” Regulatory Guide 4.21, ADAMS Accession No. ML080500187. 4. U.S. Nuclear Regulatory Commission, “Results of the License Termination Rule Analysis,” Commission Paper SECY-03-0069, May 2, 2003, ADAMS Accession No. ML030840302. 5. U.S. Nuclear Regulatory Commission, “Staff Requirements - SECY-03-0069 - Results of the License Termination Rule Analysis,” Washington, DC, November 17, 2003, ADAMS Accession No. ML033210595. 6. U.S. Nuclear Regulatory Commission, “Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM),” NUREG-1575, Revision 1, August 2000, ADAMS