Document: NUREG-0800
Document ID: f689fb6d-4711-4972-b900-1b2001877b19
Document Type: srp
Title: TSUNAMI HAZARDS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1819/ML18190A200.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.6
CFR Part: 
CFR Title: 

Content:
e used in the evaluation of flooding hazard and should assure that the basis for selection of the preferred source is provided. 3. Tsunami Propagation Model. To meet the requirements of GDC 2, GDC 44, 10 CFR 52.17, and 10 CFR Part 100, the staff should confirm that the application provides a description of the tsunami wave propagation model used in the applicant’s safety analysis report (SAR). The staff should confirm that the results from numerical simulations of tsunami or tsunami-like waves towards the proposed site are provided. The staff should confirm that this simulation uses shallow water wave equation9 as an approximation where appropriate, and uses nonlinear wave dynamics where the shallow water wave approximation is not valid.10 The staff should confirm that the parameters used in the simulation of the tsunami wave propagation model are listed and discussed with respect to their conservativeness. Staff should also verify that a discussion of all data used to input the tsunami wave propagation model including boundary condition specifications is included. 4. Wave Runup, Inundation, and Drawdown. If the staff finds that the tsunami flood- causing mechanism is found to be consequential to defining the plant’s design basis flood elevation, an assessment of that flood level in the application is needed to meet the requirements of GDC 2, GDC 44, 10 CFR 52.17, and 10 CFR Part 100. If this flood- causing mechanism is found to be consequential by the staff, then the application should identify the tsunami inundation and drawdown elevations estimated for the site. This information can be represented in the application through the use of inundation maps of the reactor site. The staff should also confirm the description of the methods and models used to simulate inundation and drawdown caused by the tsunami wave. The staff should confirm that the parameters used in the simulation of inundation and drawdown are discussed with respect to their conservativeness.