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:
G 1.21, “Measuring, Evaluating, and Reporting Radioactive Material in Liquid and Gaseous Effluents and Solid Waste” (Ref. 5), contains information on the monitoring of leaks and spills, as well as controlled releases. • RG 4.1, “Radiological Environmental Monitoring for Nuclear Power Plants” (Ref. 6), provides a method considered acceptable for use in establishing and conducting an environmental monitoring program at nuclear power plants. In particular, it describes guidance on the establishment of a radiological environmental monitoring program (REMP), which involves measuring the levels of radiation and radioactive materials in the local environment (including the subsurface) during the lifetime of the facility. • RG 4.21, “Minimization of Contamination and Radioactive Waste Generation: Life-Cycle Planning” (Ref. 7), provides guidance on meeting the requirements of 10 CFR 20.1406, “Minimization of Contamination.” Regulatory Position C.2 of RG 4.21 focuses on gathering sufficient information to support the development of a conceptual site model and in planning design features for the early detection of leakage and migration of radioactivity in soils and ground and surface water. • RG 4.22, “Decommissioning Planning During Operations” (Ref. 8), provides guidance to licensees who are required to minimize contamination and radioactive waste generation, conduct appropriate radiological surveys including the subsurface, maintain records of residual radioactivity, and provide adequate funding to complete decommissioning in accordance with portions of the Decommissioning Planning Rule, namely, 10 CFR 20.1406 and 20.1501. • NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition” (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