Document: NRC Regulatory Guide
Document ID: 42f2dcf0-38ba-4f75-84d4-e60f4bbf9162
Document Type: regulatory_guide
Title: Assessment of Abnormal Radionuclide Discharges in Ground Water to the Unrestricted Area at Nuclear Power Plant Sites Appendix-Simple Ground Water Model for Estimating Offsite Tritium Activity Flux + HISTORY - HISTORY 12/2015 – DG-4025-Proposed New Guide
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1523/ML15237A388.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.25
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CFR Title: 

Content:
nment, facilitate eventual decommissioning, and minimize, to the extent practicable, the generation of radioactive waste. – 10 CFR 20.1406(c) requires that licensees to the extent practical, conduct operations to minimize the introduction of residual radioactivity into the site, including the subsurface, in accordance with the existing radiation protection requirements in Subpart B and radiological criteria for license termination in Subpart E of this part. – 10 CFR 20.1501 requires that licensees perform surveys of areas, including the subsurface, that are reasonable to evaluate the magnitude and extent of concentrations or quantities of residual radioactivity, and determine the potential radiological hazards of the radiation levels and residual radioactivity detected. • 10 CFR Part 50, “Domestic Licensing of Production and Utilization Facilities,” provides for the licensing of nuclear power plants. – 10 CFR 50.36(a)(2) requires that licensees report the quantity of each of the principal radionuclides released to unrestricted areas from liquid and gaseous effluents during the previous 12 months, including any other information as may be required by the Commission to estimate maximum potential annual radiation doses to the public resulting from effluent releases. • 10 CFR Part 50 Appendix A provides general design criteria (GDC) for nuclear power plants. The following GDCs are of importance to the radioactive releases to ground water: – GDC 60, “Control of Releases of Radioactive Materials to the Environment,” states, the nuclear power unit design shall include means to control suitably the release of radioactive materials in gaseous and liquid effluents and to handle radioactive solid wastes produced during normal reactor operation, including anticipated operational occurrences. Sufficient holdup capacity shall be provided for retention of gaseous and liquid effluents containing radioactive materials, particularly where unfavorable site