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:
thout loss of capability to perform their intended safety functions.4 3. General Design Criterion 44 (GDC 44) requires an ultimate heat sink capable of accepting the plant's heat load under normal and accident conditions. 4. 10 CFR Part 100 requires that hydrologic characteristics be considered in the evaluation of the site. To meet the requirements of 10 CFR Part 50, 50.55aGDC 1, GDC 2, GDC 44, and 10 5 CFR Part 100 as they relate to cooling water canals and reservoirs, the following specific criteria are used: 1. The acceptance criteria for the protection of cooling water canals from wind waves, PMF, surges, etc., are the same as those outlined in SRP Sections 2.4.3, 2.4.4, 2.4.5, 2.4.6, and 2.4.7. The criterion for canal capacity is that the canal must be capable of transmitting to the plant sufficient water to meet all safety requirements during postulated extreme hydrologic events (i.e., both floods and droughts). Where canals comprise a part of the ultimate heat sink, Regulatory Guide 1.27 is used as a basis for the adequacy of design criteria and provisions. The design basis for canal capacity is analyzed to assureensure that safety- related water requirements can be supplied under all postulated 6 extreme hydrologic events, or that alternative conveyance systems are designed to be available during the postulated conditions. 2. The acceptance criteria for the hydraulic design of dams and reservoirs are as follows: a. For protection of structures against wind waves, input from SAR Sections 2.4.3, 2.4.4, 2.4.5, and 2.4.6 for PMF, probable maximum hurricane (PMH), other dam failures, surge, seiche, or tsunami levels and coincident waves and runup must be considered to establish the maximum and minimum water level and wave conditions. Also, normal pool level and coincident probable maximum wind-wave activity must be considered. Criteria and methods as reported in Corps of Engineers publications are generally acceptable for design of For those plants proposing