Document: NUREG-0800
Document ID: c41ee259-fb35-4539-bbe5-ca79a00f9f6f
Document Type: srp
Title: COOLING WATER SUPPLYLOW WATER CONSIDERATIONS1
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070258.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.11
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Hydrologic & Geotechnical Engineering Branch (HGEB)Civil Engineering and Geosciences Branch (ECGB)2 Secondary - None I. AREAS OF REVIEW The purpose of this section of the applicant's safety analysis report (SAR) is to identify natural events that may reduce or limit the available cooling water supply, and to assureensure that an 3 adequate water supply will exist to operate or shut down the plant under normal operations, anticipated operational occurrences, and emergency conditions. 4 Depending on the site, the areas of review include: 1. The worst drought considered reasonably possible in the region. 2. Low water (setdown) resulting from surges, seiches, or tsunami. 3. Low water resulting from icing in relation to the events described in Standard Review Plan (SRP) Section 2.4.7.5 4. The effect of existing and proposed water control structures (dams, diversions, dam failures, etc.). DRAFT Rev. 3 - April 1996 2.4.11-2 5. The intake structure and pump design basis in relation to the events described in SAR Subsections 2.4.11.1, 2.4.11.2, 2.4.11.3, 2.4.11.4 and SRP Sections 2.4.7, 2.4.8, and 2.4.9.6 6. The use limitations imposed or under discussion by Federal, state, or local agencies authorizing the use of the water. 7. The range of water supply required by the plant, including minimum operating and shutdown flows, during anticipated operational occurrences and emergency conditions,7 compared towith availability. 8. The effects of potential blockage of intakes by sediment, and littoral drift and ice.8 9. The capability of the ultimate heat sink to provide adequate cooling water under normal operations, anticipated operational occurrences, and emergency conditions. 9 10. Potential structural effects and their proper consideration in the structural design bases for the plant.10 For standard design certification applications, the cooling water inlet and air temperatures are specified in the site parameter envelope that must be met by