Document: NUREG-0800
Document ID: de4e4c58-fcfd-4b28-8207-5ae6fc761ee2
Document Type: srp
Title: for the LWMS and GWMS, respectively.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1502/ML15029A174.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.3
CFR Part: 
CFR Title: 

Content:
11. 10 CFR 20.1301(e) requires that NRC licensed facilities comply with the EPA generally applicable environmental radiation standards of 40 CFR Part 190 for facilities that are 11.4-25 Revision 4 – January 2016 part of the fuel cycle. The EPA annual dose limits are 0.25 mSv (25 millirem (mrem)) to the whole body, 0.75 mSv (75 mrem) to the thyroid, and 0.25 mSv (25 mrem) to any other organ. Meeting the requirements of 10 CFR 20.1301(e) necessitates the consideration of all potential sources of external radiation and radioactivity, including liquid and gaseous effluents and external radiation exposures from buildings, storage tanks, radioactive waste, and storage areas. The EPA standards apply to the entire site or facility, which may have either single or multiple reactor units. SRP Sections 11.1, 11.2 and 11.3 address sources of radioactivity and doses associated with liquid and gaseous effluents, respectively. In turn, SRP Section 11.5 addresses compliance with all sources of effluents. SRP Section 12.3-12.4 addresses sources of radiation and external radiation exposures from buildings housing the SWMS, radioactive waste storage areas, storage tanks, and other site buildings. For COL applicants with site-specific information on the locations of offsite dose receptors, compliance with the EPA standards should consider whether doses due to gaseous and liquid effluent releases and external radiation are additive or need to be addressed separately given actual exposure pathways. The location of offsite dose receptors and the determination of actual exposure pathways should be based on the results of a current land use census for the site. If there is no site-specific information, the applicant may assume that all exposures occur at one location or in one sector in bounding dose estimates, where doses from liquid and gaseous effluent releases and external radiation are summed up and compared to the EPA standards. In such instances, the applicant should provide a