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
CFR Part: 
CFR Title: 

Content:
�� (Ref. 9), Sections 2.4.12, on “Ground Water” and 2.4.13, on “Accidental Releases of Radioactive Liquid Effluents in Ground and Surface Waters,” provide guidance to NRC staff on review of an applicant’s submitted information for characterizing and assessing the ground water site conditions and scenarios for accidental releases (e.g., principally a leaking radwaste tank) at the site as well as potential offsite consequences. Section 11.2 addresses the “Liquid Waste Management System,” and BTP 11-6 covers “Postulated Radioactive Releases Due to Liquid-Containing Tank Failures.” • Design Certification/Combined License (DC/COL) Final Interim Staff Guidance (ISG) DC/COL-ISG-06, “Evaluation and Acceptance Criteria for 10 CFR 20.1406 to Support Design DG-4025, Page 4 Certification and Combined License Applications” (Ref. 10), provides interim guidance to DC and COL applicants and NRC staff for their analysis on how applicants have complied with the requirements of 10 CFR 20.1406. It provides interim guidance to supplement the evaluation and acceptance criteria found in FSAR Chapters 2, “Site Characteristics and Site Parameters,” 5,” Reactor Coolant System and Connected Systems,” 9,” Auxiliary Systems,” 10,” Steam and Power Conversion System,” 11,” Radioactive Waste Management,” 12,” Radiation Protection,” and 13, “Conduct of Operations” of NUREG-0800 and the guidance in RG 4.21. • DC/COL-ISG-013, “Assessing the Radiological Consequences of Accidental Releases of Radioactive Materials from Liquid Waste Tanks for Combined License Applications” (Ref. 11), provides interim guidance to licensees and NRC staff for their analysis of the consequences of an accidental release with an emphasis on how radiological consequences are determined. It provides specific interim guidance on implementing Sections 2.4.12, 2.4.13, 11.2, and BTP 11-6 of NUREG-0800. • DC/COL-ISG-014, “Assessing the Radiological Consequences of