Document: NUREG-0800
Document ID: 55e187c7-8e17-41ed-a88e-0205d1317fb6
Document Type: srp
Title: - 12.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1315/ML13151A475.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
1406. C1 through C4 describe concepts to be implemented to provide reasonable assurance that inadvertent spills, leaks, and discharges of liquid, gaseous and solid radioactive effluents are prevented, detected and corrected, that the site is adequately characterized and understood, that decommissioning is planned for, and that the generation of radioactive waste is minimized. The measures to be taken by the applicant should be risk-informed and the examples described in Appendix A of RG 4.21, should be used by the applicants as guidance to determine which measures are applicable to their facility. Appendix A of RG 4.21 however, is not intended to be used as a checklist of minimally acceptable design or operational features. Alternative methods to RG 4.21 may be acceptable to meet the requirements of 10 CFR 20.1406, provided the methods are documented fully in the DC or the COL applications, and accepted by the staff. Additionally, the applicant should document that if a spill, leak, or inadvertent discharge were to occur, design or operational features would ensure that the spill, leak, or discharge will be detected promptly, and monitored and evaluated to determine the impact on the environment. Acceptance Criteria To determine an applicant’s compliance with 10 CFR 20.1406, as it relates to describing a basis acceptable for implementing the requirements of 10 CFR 20.1406, the staff should review the applicant’s description of all applicable SSCs and applicable site-specific data against the guidance contained in RG 4.21 to confirm that: • Adequate design features exist, supplemented with operating programs, processes and procedures (as necessary), and these will provide reasonable assurance that spills, leaks, and inadvertent discharges of radioactive effluents will be prevented to the extent practicable, or minimized. • In the event the spill, leak, or inadvertent discharge does occur, the staff should verify that there is reasonable assurance that it will