Document: NUREG-0800
Document ID: 030a527a-e2e7-4d90-b34f-4662fb984153
Document Type: srp
Title: STRATEGIES AND GUIDANCE TO ADDRESS LOSS OF LARGE AREAS OF
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1331/ML13316B202.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.4
CFR Part: 
CFR Title: 

Content:
Mitigative Measures The reviewer should verify that the applicant describes the orientation of spent fuel in the SFP. Spent fuel should be put in a 1 x 4 repeating pattern, as described in NRC (2005). Holders of COLs or operating licenses should pre-configure the SFP to enable direct placement of the expended assemblies from the vessel to the final distributed fuel pattern. The NRC staff has accepted alternate strategies for the timing to achieve the appropriate pattern at 10 CFR Part 50 facilities currently operating. This was done in consideration of the feasibility and practicality of such an operation in a pool filled with many cycles of spent fuel, and possibly containing fuel storage racks with different designs. Such timing considerations are not considered necessary for newly designed spent fuel storage facilities. Applicants who choose to conform to the NRC-approved resolution (NRC, 2005) should include the following concept in procedures: “Where practical, consistent with safe fuel handling practices, the licensee should make every attempt to pre-configure the SFP to enable direct placement of the expended assemblies from the vessel to the final distributed fuel pattern. Where this is not practical, licenses should distribute the fuel into the final pattern as soon as reasonably possible.” Applicants should document whether they will use the NRC-approved timing resolution or an alternate timing 19.4-12 Revision 0 – June 2015 resolution in their plans submitted in accordance with 10 CFR 52.80(d) and 10 CFR 50.34(i). The reviewer should verify that the applicant indicates that freshly discharged fuel3 will not be placed over SFP rack feet. This restriction should be addressed in procedures. If an analysis concludes that flow is not restricted by rack feet, then this item is not applicable. The analysis should be available for NRC inspection. The reviewer should verify that the applicant indicates that, a contiguous area will be established in the SFP