Document: NUREG-0800
Document ID: d1de2ef3-6098-4e90-988e-9f6478b2ed47
Document Type: srp
Title: SITE PARAMETERS (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070656.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.1
CFR Part: 
CFR Title: 

Content:
ed by 10 CFR 52.47(b). The requirements for site parameters for the standard design are contained in 10 CFR 52.47(a)(1)(iii). The design certification applicant must provide postulated site parameters for the design, and an analysis and evaluation of the design in terms of such parameters. The following should be addressed to demonstrate that the standard design meets the above criteria. The site parameters used in the design must be specified in both Tier 1 and DCD Tier 2 Chapter 2. The site parameters specified in Tier 1 are the top-level bounding site parameters used in the selection of a suitable site for a facility referencing the certified design. Because they were used in bounding evaluations of the certified design, they define the requirements for the design that must be met by a site. This ensures that a facility built on the site remains in confor- mance with the design certification. Appropriate values for site parameters should be selected that make the design suitable for many sites. The site parameters specified in the DCD Tier 2 Chapter 2 should be consistent with those in Tier 1. The analysis and evaluation of the design may be contained in the various sections of the DCD Tier 2. For example, the safe shutdown earthquake parameter is discussed in structural and piping analyses in Chapter 3, atmospheric dispersion parameters are discussed in radiological analyses in Chapter 15, and elevation parameters are discussed in the flooding analyses in Chapter 15. Supporting information for the ITAAC may also utilize these site parameters, as discussed in SRP Sections 14.3.2 and 14.3.3. The staff's evaluations of the site parameters and the design in the appropriate sections of DCD Tier 2 should be utilized to determine the appropriate top-level site parameters for Tier 1, and their acceptability. Site parameters should be specified for the following parameters: Maximum ground water level Maximum flood level Precipitation (rain and snowfall) Ambient Design