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:
and that the facility’s design specifications are consistent with these data. As applicable, reviews of OLs and COLs should include a determination on whether the content of technical specifications bearing on the site characteristic flood reflect consideration of any newly-identified conditions that might now be considered unique to the site and not previously considered in either the CP or the ESP, respectively. These review procedures also apply to COL applications that do not reference an existing ESP. These review procedures are based on acceptance criteria identified in Subsection II of this SRP. For deviations from these acceptance criteria, the staff should review the applicant's evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. The staff’s review in the first instance should consist of a hierarchical bounding analysis. If the staff’s preliminary assessment of tsunami flooding effects is comparable to the licensee’s 2.4.6-11 Revision 4 - September 2018 preliminary analysis, the staff should concur with the applicant’s findings. If the staff’s preliminary bounding analysis indicates that its analysis and that prepared by the applicant are not comparable and reach different conclusions, the staff should repeat its analysis using more realistic assumptions; it may also be necessary to rely on more sophisticated analysis model. If the results of the two analyses continue to remain non-comparable then the staff should analyze the applicants’ data, methods, and assumptions to determine their reasonableness. Staff may also rely on alternative analysis techniques including alternative conceptual models. Staff should also consider the need to conduct an audit with the applicant to address any differences with the applicant’s findings. 1. Historically-Reported/Instrumentally-Recorded Tsunami Data. The staff reviews historically-reported information,