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:
dose (mrem/yr) 15 Liquid effluents Total body dose (mrem/yr) 3 Maximum organ dose (mrem/yr) 10 DG-4026, Page 103 Table 5-4. Comparison of Doses to 40 CFR Part 190 Radionuclide Dose Operating facility Proposed facility Site Total dose (mrem/yr) 40 CFR Part 190 Dose Standards (mrem/yr) Combined liquid, direct and gaseous dose (mrem/yr) Combined liquid, direct and gaseous dose (mrem/yr) Whole body dose 25 Thyroid 75 Any other organ 25 Source: [Provide all sources of data.] Population Dose The applicant should estimate the annual collective population total body dose in units of person- rem within a 50-mi radius of the proposed site. The estimated collective dose to the same population from natural background radiation should also be estimated and the two values compared. The dose from natural background radiation should be calculated by multiplying the 50-mi population estimate for the year operation is expected to cease (for the 40-year license including through one license renewal) by the average annual background dose rate of 311 mrem/yr from the National Council on Radiation Protection and Measurements (NCRP), “Ionizing Radiation Exposure of the Population of the United States” (Ref. 68), or the currently accepted natural background dose rate at the location being considered for the proposed site. 5.9.4 Occupational Doses to Workers The applicant should provide an estimate for the annual occupation dose to workers, including outage activities, in units of person-rem. This value can either be estimated from the design control document (DCD) for the reactor design or from doses to workers at operational units at the site. 5.9.5 Doses to Nonhuman Biota The applicant should determine if there is any potential for significant radiological impacts to biota other than members of the public and if so, estimate the nature and magnitude of the impact. The scope of the review should include an analysis of radiation-exposure pathways to biota. In the ER, the applicant