Document: NUREG-0800
Document ID: 09e53ce5-bec3-4415-82d1-82ee125cb7c1
Document Type: srp
Title: describes the design acceptance criteria for the LWMS.  The classification of
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070720635.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
CFR Part: 
CFR Title: 

Content:
eview of information on surface and ground water hydrology, parameters governing the movement of liquids and mobility of radioactivity through soils, and potential dilution in water is performed under SRP Section 2.4.13. Briefly, these sections of the SRP address information describing BTP 11-6-3 March 2007 streams and lakes, regional and local ground water aquifers, sources, and sinks, local and regional ground water users, known and likely future withdrawal rates, regional flow rates, travel time, gradients, and velocities, subsurface properties that affect movement of contaminants in ground water, ground water levels including their seasonal and climatic fluctuations, ground water monitoring and protection requirements, man-made changes that may affect regional ground water characteristics over time, and local practices in using water resources. 2. Radioactive Source Term The proposed radionuclide concentrations assumed for the postulated failure of a tank and its components will be reviewed by the staff using the information presented by the applicant. 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. The staff will evaluate the basis and assumptions used in developing the source terms, radionuclide distributions and concentrations to ensure that the highest potential radioactive material inventory is selected among the expected types of liquid and wet waste streams processed by the LWMS. The radionuclide inventory for the tank and its components assumed to fail is based on 80% of the volume capacity of that tank and its component. The radionuclides selected for the radioactive source term and total inventory should include those that have the highest potential exposure consequences to users of water resources, including long-lived fission and activation products and environmentally mobile radionuclides. The radionuclide concentrations and total inventory of