Document: NUREG-0800
Document ID: eea126bc-3192-4a98-b937-2f09794010cd
Document Type: srp
Title: COOLING WATER SUPPLY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340556.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.11
CFR Part: 
CFR Title: 

Content:
ns are keyed to the Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants. Not all sections of the Standard Format have a corresponding review plan. Published standard review plans will be revised periodically, as appropriate, to accommodate comments and to reflect new Informa- tion and experience. Comments end suggestions for Improvement will be considered and should be sent to the U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation. Washington. D.C. 2OE 9. The capability of the ultimate heat sink to provide adequate cooling water under normal and emergency conditions. II. ACCEPTANCE CRITERIA Acceptance criteria for this SRP section relate to the following regulations: 1. General Design Criterion (GDC) 2 requires that structures, systems, and components important to safety be designed to withstand the effects of natural phenomena. 2. General Design Criterion (GOC) 44 requires an ultimate heat sink capable of accepting the plant's heat load under normal and accident conditions. 3. 10 CFR Part 100 requires that hydrologic characteristics be considered in the evaluation of the site. 4. 10 CFR Part 100, Appendix A requires, in part, that consideration of river blockages or diversion or other failures which may block the flow of cooling water, tsunami runup and drawdown, and dam failures be included in the evaluation of the adequacy of the emergency cooling water supply. To meet the requirements of the hydrologic aspects of the above regulations, the following specific criteria are used: Acceptance is based principally on the adequacy of the ultimate heat sink to supply cooling water for normal operation and for safe shutdown, cooldown (first 30 days), and long-term cooldown (periods in excess of 30 days) during adverse natural conditions. In addition, the design basis of the intake system must be adequate to enable delivery of the necessary cooling water to the plant during adverse hydrologic conditions. Where the specific