Document: NUREG-0800
Document ID: a35b0293-07ff-4bdb-9950-454f3a0e970e
Document Type: srp
Title: ICE EFFECTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070249.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.7
CFR Part: 
CFR Title: 

Content:
sary, the most likely types of icing conditions (floating ice, river blockage by ice buildup, frazil, etc.) are listed, and the potential impact on plant design of each type is identified. Criteria of the Corps of Engineers and others provide a means of assessing icing impact and methods of mitigating adverse effects. For each type of icing condition, preliminary independent estimates of the "worst case" will be made by either conservative statistical or deterministic techniques. If the applicant's estimates of ice effects are comparable to the staff's preliminary analysis, the staff will concur with the applicant's estimates. If the preliminary analysis indicates the applicant's estimates of ice effects are not comparable to the staff's estimates, the staff's analysis will be repeated using more realistic techniques. The above reviews are performed only when applicable to the site or site regions. Some items of review may be done on a generic basis. For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the DRAFT Rev. 3 - April 1996 2.4.7-6 design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.20 IV. EVALUATION FINDINGS For construction permit (CP) and early site permit reviews, the findings will summarize the 21 applicant's and staff's estimates of the potential for ice flooding, ice blockage of water intakes, ice forces on structures, and the minimum low water levels (from upstream ice blockage). If the applicant's estimates are within acceptable margins (described in