Document: NUREG-0800
Document ID: 35e957d7-3290-494d-9eee-0bf2a413d598
Document Type: srp
Title: LIQUID WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600412.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
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liquids and liquid wastes produced during normal operation and anticipated operational occurrences. For the purpose of this SRP, the dose limit cited in Section 5 of Regulatory Guide 1.143, addressing unmitigated releases of radioactive materials, is revised to be consistent with that of 10 CFR Part 20.1301. The annual dose limit of Part 20.1301 is 100 mrem for members of the public located in unrestricted areas. Meeting the requirements of GDC 61 provides assurance that releases of radioactive materials during normal operation and anticipated operational occurrences, including adverse vacuum conditions on system components, will not result in radiation doses that exceed the limits specified in 10 CFR Part 20. In addition, meeting this requirement will help ensure that the LWMS will continue to perform its safety function(s) under postulated accident conditions. 7. The acceptance criteria require that an applicant evaluates the consequences of the release of radioactive liquids following the postulated failure of a tank and its components, located outside of containment, and impacts of radioactive materials at the nearest potable water supply, located in an unrestricted area, for direct human consumption or indirectly through animals, crops, and food processing. The analysis assumes that a tank and its components fail to meet the design bases as required by 10 CFR Part 50.34a, and General Design Criteria 60 and 61 of Appendix A to Part 50. The analysis relies on the approach presented in BTP 11-6. BTP 11-6 presents guidelines in defining the type of failure, assumptions used for the analysis, and approach applied in assessing the radiological impacts in providing reasonable assurance that the radiological consequences of a single failure of a tank and its components would not exceed the radionuclide concentration limits of Appendix B (Table 2, Column 2, under the unity rule) to 10 CFR Part 20 using the nearest source of potable water, in an unrestricted area, for