Document: NUREG-0800
Document ID: a397b98f-e122-4d15-8471-5259fb45b58b
Document Type: srp
Title: and BTP 11-6 since the use of durable and passive design features would provide
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1305/ML13051A458.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
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CFR Title: 

Content:
s of 10 CFR Part 52, COL and other applications. 5. The health physics staff is responsible for leading the evaluation of all steps except the fourth step. The fourth step, addressing the transport of radioactivity in surface water BTP 11-6-26 Draft Revision 4 – August 2014 and groundwater and deriving radionuclide concentrations in unrestricted areas, is the responsibility of the hydrologic engineering staff. The corresponding guidance for the health physics staff is described BTP 11-6, while the guidance for the hydrologic engineering staff is provided in SRP Section 2.4.13. 6. The acceptance criteria are now based on doses 100 mrem (1 mSv) to members of the public, rather than on liquid effluent concentration limits, as was the case in previous guidance. The reason for this change is the need to better account for the effects of multiple exposure pathways. Releases may affect surface water and groundwater differently; consequently, the impact in some instances may be by way of direct consumption of water, while in others the impact may be only by indirect use of water ( e.g., for livestock watering or crop irrigation). These different exposure scenarios and pathways can be quantified, because the applicant is expected to describe uses of water resources, based on local or regional land-use census information. 7. If the results of site-specific analyses do not demonstrate conformance with the BTP acceptance criteria, the applicant is expected to propose TS limiting the total amount of radioactivity in such tanks and components. The health physics staff will evaluate the proposed technical specification limiting the radioactivity content of liquid-containing tanks and components to ensure that the TS are consistent with the evaluation. The maximum inventory of radioactive materials, in the event of an uncontrolled release of radioactivity, is based on that quantity of radioactivity that will not exceed the SRP dose acceptance criteria of 100 mrem (1 mSv) from all