Document: NUREG-0800
Document ID: 57051ec2-9a01-488e-8294-573ed557f3eb
Document Type: srp
Title: GROUNDWATER
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070262.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.12
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CFR Title: 

Content:
o 10 CFR Part 100 requires that geologic and seismic factors be considered when determining the suitability of the site and the acceptability of the design for each nuclear power plant. In particular, paragraph V(d)(3) requires that the physical properties of materials underlying the site be considered when designing a system to supply cooling water for emergency and long-term shutdown decay heat removal. Appendix A is applicable to SRP Section 2.4.12 because it addresses requirements for investigating vibratory ground motion, including the hydrologic conditions at and near the site. Static and dynamic engineering properties of the materials underlying the site must be determined, including the properties (e.g., density, water content, porosity, and strength) needed to determine the behavior of those materials in transmitting earthquake- induced motions to the foundations of the plant. Meeting this requirement provides a level of assurance that the plant foundations are designed to withstand the effects of a safe shutdown earthquake.21 III. REVIEW PROCEDURES Section 2.4.12 of the applicant's SAR is reviewed to identify any missing data, information, or analyses necessary for the staff's evaluation. Applicant responses to the requested information will be evaluated using the methods outlined below, and staff positions will be developed based on the results of the analysis. Resolution, if possible, of potential groundwater problems or of differences between applicant's and staff's design bases will be coordinated through the LPM project manager (LPM), and the SER safety evaluation report (SER) will be written 22 23 accordingly. The review sequence is shown in Figure 2.4.12. Local and regional groundwater conditions are reviewed by comparing the applicant's description with reports by the U.S. Geological Survey (USGS), other agencies, and professional organizations. Other NRC organizational elements with related review responsibilities will be notified of any