Document: NUREG-0800
Document ID: 5657a07e-c0b2-48ce-aaad-64d91609c4b3
Document Type: srp
Title: ICE EFFECTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070100648.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.7
CFR Part: 
CFR Title: 

Content:
blishing the flood (e.g., from collapse of an ice dam) and water supply design bases (e.g., low water downstream of ice jams). If this water level would adversely affect the intake structure, or other safety-related facilities, it should be demonstrated that an alternate safety-related water supply will not also be adversely affected. If icing has not been severe, based on regional icing history, design considerations should be presented (e.g., return of a portion of low-grade heat to the intake) to ensure that icing or ice blockage of intake screens (e.g., due to frazil ice) and pumps will not adversely affect safety-related facilities and water supplies. At sites or in site regions where more detailed analysis is needed to ascertain the most severe ice-induced hazard, the review verifies that the following icing potential site characteristics have been provided: 2.4.7-7 Revision 3 - March 2007 A. maximum accumulated freezing degree-days (assists in design of SSC exposed to the effects of ice) B. a determination of whether the site or the site region supports formation of frazil ice. 5. Consideration of Other Site-Related Evaluation Criteria: 10 CFR Part 100 describes site-related proximity, seismic, and non-seismic evaluation criteria for power reactor applications. Subpart A to 10 CFR Part 100 addresses the requirements for applications before January 10, 1997, and Subpart B is for applications on or after January 10, 1997. The staff’s review should include evaluation of pertinent information to determine if these criteria are appropriately used in postulation of the worst-case icing scenario at the proposed plant site. 6. Review Procedures Specific to 10 CFR Part 52 Application Type A. Early Site Permit Reviews: Subpart A to 10 CFR Part 52 specifies the requirements and procedures applicable to the Commission’s review of an ESP application for approval of a proposed site. Information required in an ESP application includes a description of the site