Document: NUREG-0800
Document ID: 48e0424f-1ce1-40c2-8315-90d07a9f20d5
Document Type: srp
Title: FLOODING PROTECTION REQUIREMENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730437.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.10
CFR Part: 
CFR Title: 

Content:
ill continue functioning to maintain the plant in a safe condition. This criterion is applicable to SRP Section 2.4.10 because it specifies the hydrologic phenomena that are addressed by this section. In general terms, it also specifies the level of conservatism that should be used to assess the severity of these phenomena for the purpose of determining the design bases (or protection) requirements for structures, systems, and components important to safety. For applications pursuant to 10 CFR Part 52, meeting the applicable requirements of 10 CFR 52.17 and 10 CFR 52.79 that correspond to GDC 2 provides a level of assurance that the most severe hydrologic site characteristics have been identified; whether GDC 2 is met with respect to the adequacy of the associated design bases will be evaluated pursuant to other SRP sections. 2. Sections 100.10(c) and 100.20(c) of 10 CFR Part 100 require that physical characteristics of a site (including seismology, meteorology, geology, and hydrology) be taken into account when determining its acceptability for a nuclear power reactor. To satisfy the hydrologic requirements of 10 CFR Part 100, the applicant’s SAR should contain a description of the surface hydrologic characteristics of the site and region, as well as an analysis of the area’s flood potential. The description should be sufficient to assess the acceptability of the site for a nuclear power plant of the proposed design. In addition, it may be necessary to assess the potential of those hydrologic characteristics to influence the design of SSC important to safety and to define any special flood protection requirements therefor. Meeting this requirement provides assurance that structures, systems or components important to safety are designed to withstand, or are protected against, the effects of potentially severe flooding. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case.