Document: NUREG-0800
Document ID: cbcf5b42-aac8-43cf-a267-4f72f2392f37
Document Type: srp
Title: HYDROLOGIC DESCRIPTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070100646.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.1
CFR Part: 
CFR Title: 

Content:
ms, surface and ground water uses, spatial and temporal data sets, and alternate conceptual models of site hydrology. Further, the applicant considered the most severe natural phenomena that have been historically reported for the site and surrounding area while describing the hydrologic interface of the plant with the site, with sufficient margin for the limited accuracy, quantity, and period of time in which the historical data have been accumulated. The staff has generally accepted the methodologies used to determine the severity of the phenomena reflected in these site characteristics, as documented in safety evaluation reports for previous licensing actions. Accordingly, the staff concludes that the use of these methodologies results in site characteristics containing sufficient margin 2.4.1-12 Revision 3 - March 2007 for the limited accuracy, quantity, and period of time in which the data have been accumulated. In view of the above, the site characteristics previously identified are acceptable for use in establishing the design bases for SSCs important to safety, as may be proposed in a COL or CP application. Therefore, the staff concludes that the identification and consideration of the hydrological setting of the site set forth above are acceptable and meet the requirements of 10 CFR Part 52.17(a)(1)(vi), 10 CFR Part 100.20(c), and 10 CFR Part 100.21(d). In view of the above, the staff finds the applicant’s proposed site characteristics related to hydrological setting for inclusion in an ESP for the applicant’s site, should one be issued, to be acceptable. 3. Design Certification Reviews The following statement should be preceded by a list of the applicable site parameters used for the plant: The NRC staff acknowledges that the applicant has selected the site parameters referenced above for plant design inputs (a subset of which is included as Tier 1 information), and agrees that they are representative of a reasonable number of sites that have been or