Document: NRC Regulatory Guide
Document ID: f0baf50b-5bb7-4783-b2f9-9586e09c97e1
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Stations + HISTORY - HISTORY 02/2017 – DG-4026 , Proposed Revision 3 09/2014 – Periodic Review of Revision 2 – Revise (Rev. 3)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1611/ML16116A068.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2
CFR Part: 
CFR Title: 

Content:
exposed individual (MEI) calculated using the current NRC-approved computer code (e.g., LADTAP II) (Ref. 64), that comply with RG 1.109, “Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purposes of Evaluating Compliance with 10 CFR Part 50, Appendix I” (Ref. 65). The input and output files used in the analysis should be provided to the NRC staff for confirmatory review. • The activities considered in the dose calculations: (1) consumption of drinking water affected by liquid effluents; (2) consumption of fish and invertebrates from water sources affected by liquid effluents; (3) direct radiation from swimming, boating, and shoreline activities on waterbodies affected by liquid effluents; and (4) ingestion of irrigated foods. • Other parameters used as inputs to the current approved computer code including effluent discharge rate, dilution factor for discharge, transit time to receptor, and liquid pathway consumption and usage factors (i.e., shoreline usage, fish consumption, and drinking water consumption). • The location of the MEI, the age of the MEI (i.e., infant, child, teen, or adult), and source of the majority of the dose. In addition, the ER should provide the maximally exposed organ, and source of that dose. • The calculated annual collective population doses in units of person-rem for this pathway based on an estimated population distribution late in the timeframe of the proposed license. In the ER, the applicant should provide the doses to the MEI in a table similar to Table 5-1. Table 5-1. Annual Doses to the Maximally Exposed Individual for Liquid Effluent Releases from the Proposed Facility Pathway Age Group Total Body (mrem/yr) Maximum Organ (mrem/yr) Thyroid (mrem/yr) Drinking Water Adult Teen Child Infant Fish and Invertebrate Adult Teen Child Direct Radiation All Source: [Provide all sources of data.] DG-4026, Page 101 Gaseous Effluent Pathway The ER should contain the following: • Gaseous