Document: NUREG-0800
Document ID: ebff6c02-bdd3-4751-9e36-9347caf05c8e
Document Type: srp
Title: and 2.4.6 are applicable to low water estimates due to the various phenomena discussed.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070258.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.5
CFR Part: 
CFR Title: 

Content:
ate water supplies, the applicant's water supply sources and procedures will be reviewed with AEBPERB, PSBSPLB, and the LPM to determine that there is continuity of 57 58 water supply. The time period for which a highly dependable water supply would be available is compared with the time required to obtain water from an alternative supply, and the natural or accident environmental conditions which could prevail. For long-term water supply capability, different sources and means of obtaining water may be required because of the limited capability of a "short- term" supply. In those cases where different sources are necessary to assureensure the long-term plant heat removal capability, the 59 alternative sources and the means of supplying water from the sources to the plant should be identified. Any plant design provisions necessary for such situations should also be described or a reference provided to other SAR sections for the descriptions. Emergency means for obtaining long-term water supplies will be judged on the basis of the time required to obtain such supplies, natural or accident phenomena likely to prevail or to have caused the need for such supplies, and the dependability of the supply itself. The ability of the ultimate heat sink to provide the plant with cooling water below the design maximum temperature will be evaluated. The design maximum temperature and the heat load of the design basis accident, as specified in Regulatory Guide 1.27, will be provided by ASBSPLB. Techniques for selecting the meteorologic conditions for minimum heat transfer 60 and for performing the transient analysis for cooling ponds and spray ponds are provided in NUREG-0693 and NUREG-0733 References 24 and 25, respectively. 61 Requirements and procedures governing issuance of early site permits for approval of proposed sites for nuclear power facilities are specified in 10 CFR Part 52. Information required for such DRAFT Rev. 3 - April 1996 2.4.11-10 a permit includes a