Document: NRC Regulatory Guide
Document ID: eb3f5778-b26b-4ba0-9962-f7101bddfff7
Document Type: regulatory_guide
Title: (Rev. 3005)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0037/ML003739900.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.8
CFR Part: 
CFR Title: 

Content:
environmental monilortng programs should be established to provide data on measurable levels of radiation and radioactive materials in the site environs. Appendix I to 10 CFR Part 50 requires that the relationship between quantities of radioactive mate rial released in effluents during normal operation, including anticipated operationil ocuucrimces, aid resul tant radiation doses to individuals fromn priridpal path ways of exposure be evaluated. MoIoring programs are conducted to verify the in-plant controls used for controlling the release. of radioactive ii•te~iais Surveil lance should be established to idenvfy chagcs in the use of unrestricted areas to provide a b',&i! for mjudifications in the monitoring programs. NRC Regulatory Guide 4.1, Re.-. -, "'.oa-ams for Monitoring Radioacti-'icy in •t .•i;,ý c-f Nuclear Power Plants," provides an acc•.j-&blc basis for the design of programs to mon'ho.r .-.... •......-d, tion and radioactivity in plant environs. 4.8-8 In describing the radiologlcal envtounnentrM munitor ing program, specify the size and physical characteristics of each sample, the types of radiological analyses to be performed, and the measuring equipment to be used. The determinate error of measurement for specific * radionuclides should also be provided. An acceptable format for summarizinýl, ad iepoiting radioactivity in environmental samples is provided in Table 1. Table 2 provides the elements of a radiological monitoring program. Table 3 is included to indicate acceptable .aetection capabilities for environmental samples. The intensive program outlined in Table 2 should be conducted for the first three years of commercial operation (or other period corresponding to a maximum burnup in the initial core cycle). Following this period, program changes may be proposed based on operational experience. Guidelines for submitting the Annual Environmental Operating Report are given in Section 5.6.1. Guidelines for submitting nonroutine reports