Document: NUREG-0800
Document ID: 496b5bd8-c9a2-4cf6-a703-e41c51e155ec
Document Type: srp
Title: CHANNEL MIGRATION OR DIVERSION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1819/ML18190A201.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.9
CFR Part: 
CFR Title: 

Content:
l to be reviewed should be consistent with that described in SRP Section 2.4.3 “Streams and Rivers.” This information can be represented through the use of inundation maps of the reactor site. The water surface estimates should be sufficient to demonstrate that the SSCs important to safety can withstand these forces without loss of their ability to perform their intended safety functions. A description of mitigation measures to address the effects of flooding due to channel migration or diversion should be provided, and it should be demonstrated that these measures are consistent with the Commission’s regulations regarding performance of SSCs important to safety. 6. Alternate Water Supply Sources: To meet the requirements of GDC 2, GDC 44, 10 CFR 52.17 and 10 CFR 52.79, and 10 CFR Part 100, assessments of alternate safety-related water supply sources and operating procedures are needed. These assessments should be consistent with staff’s review associated with SRP Section 2.4.11 “Low Water Considerations” and with SRP Section 2.4.14 “Technical Specifications and Emergency Operation Requirements.” 7. Consideration of Other Site-Related Evaluation Criteria: To meet the requirements of GDC 1, GDC 2, 10 CFR 52.17 and 52.79, and 10 CFR Part 100, a description of the potential effects of site-related proximity, seismic, and non-seismic information on the postulated worst-case channel migration or diversion scenario for the proposed plant site is needed. This description should be sufficient to demonstrate that the applicant’s design bases appropriately account for these effects. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with GDC 2 requires that nuclear power plant SSCs important to safety be designed to withstand the effects of natural phenomena such as earthquake, tornado, hurricane, flood, tsunami,