Document: NRC Regulatory Guide
Document ID: 96baa826-d3bb-478b-8f38-e74500f6d433
Document Type: regulatory_guide
Title: 06/2009 (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0911/ML091170109.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.21
CFR Part: 
CFR Title: 

Content:
exposure pathway is not applicable (i.e., it does not exist at a site), no dose should be calculated for that exposure pathway. b. Report the highest air dose from gaseous effluents on a quarterly and annual basis at any location that could be occupied by individuals in the unrestricted area and the percentage of the Appendix I design objectives. Rev. 2 of RG 1.21, Page 38 c. Report the organ dose from iodine, tritium, and particulates with a half-life greater than 8 days to the maximum exposed individual in an unrestricted area from all pathways of exposure (e.g., submersion and ingestion). 2. Licensees should demonstrate compliance with 10 CFR 20.1301(e) and 40 CFR Part 190 (Table A-5) by doing the following: a. Report the whole body, thyroid, and highest dose to any other organ from licensed and unlicensed radioactive material in the uranium fuel cycle, excluding background, to the individual member of the public likely to receive the highest dose. 8.5 Supplemental Information Table A-6 in the appendix can be used to provide supplemental information in a descriptive, narrative form. Relevant information and a description of circumstances should be provided as appropriate for each the following categories, adding categories as appropriate. Use the annotation N/A if not applicable. 8.5.1 Abnormal Releases or Abnormal Discharges 1. Specific information should be reported concerning abnormal (airborne and/or liquid) releases on site and abnormal discharges to the unrestricted area. The report should describe each event in a way that would enable the NRC to adequately understand how the material was released and if there was a discharge to the unrestricted area. The report should describe the potential impact on the ingestion exposure pathway involving surface water and ground water, as applicable. The report should also describe the impact (if any) on other affected exposure pathways (e.g., inhalation). 2. The following are the thresholds for reporting abnormal