Document: NUREG-0800
Document ID: aa991707-7fa7-4f81-b272-8b2d0af4f5e9
Document Type: srp
Title: COOLING WATER CANALS AND RESERVOIRS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070250.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.8
CFR Part: 
CFR Title: 

Content:
omponents shall reflect the following: a. Appropriate consideration of the most severe natural phenomena historically reported for the site and surrounding area, with sufficient margin for the limited accuracy, quantity, and period of time in which the historical data have been accumulated; b. Appropriate combinations of the effects of normal and accident conditions with those of the natural phenomena; and 2.4.8-5 DRAFT Rev. 3 - April 1996 c. The importance of the safety functions to be performed. The design function of cooling water canals and reservoirs is to provide adequate cooling water to safety-related components of the emergency core cooling system and to reactor auxiliary equipment during normal operations, anticipated operational occurrences, and accident conditions. Compliance with GDC 2 ensures that cooling water canals and reservoirs will perform their design safety functions while withstanding the effects of the most severe natural phenomena likely to occur (including floods and droughts) in combination with normal operations, anticipated operational occurrences, or accident conditions. Meeting the requirements of GDC 2 provides assurance that safety-related structures, systems, and components requiring cooling water will not lose the capability to perform their intended safety functions during the most severe credible natural phenomena in combination with normal operations, anticipated operational occurrences, or accident conditions.11 3. Compliance with GDC 44 requires a system for transferring heat from structures, systems, and components important to safety to an ultimate heat sink during normal operations, anticipated operational occurrences, and accident conditions. GDC 44 applies to this SRP section because the ultimate heat sink for the cooling water system consists of complex water sources, including canals and reservoirs necessary to transport and impound plant cooling water. The design function of cooling water canals and reservoirs is to