ML23150A229

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Handout for Public Meeting with Holtec on HI-STORM Umax Amendment No. 3 (June 2, 2023)
ML23150A229
Person / Time
Site: HI-STORM 100
Issue date: 06/02/2023
From:
Holtec
To:
Office of Nuclear Material Safety and Safeguards
References
Download: ML23150A229 (1)


Text

www.holtec.com Meeting on RAIs for UMAX Amendment 3

Criticality RAIs RAI 21 and 23 are clear that the staff expects to see analysis of the flooded canister Holtec will change approach and evaluate canister and basket under wet conditions Same methodology as in HI-STORM FW (HI-STORM UMAX just incorporates FW by reference) www.holtec.com l Page 2

Structural RAIs RAI - 6 Incorrect interpretation of original question, will update drawing RAI - 15 The seismic analysis/modelling approach used for the 24PT1-DSC is the same as what was used in the original certification of the UMAX system Two seismic components are used as input: vertical component and net horizontal component (SRSS of two orthogonal directions)

Analysis details to be discussed in proprietary session www.holtec.com l Page 3

Structural RAIs RAI - 16 Details of top seismic restraint assembly (TSRA) and divider shell appurtenance assembly (DSAA) to be discussed in proprietary session Analysis in conjunction with RAI-15 www.holtec.com l Page 4

Path forward After staff feedback today, including during proprietary session, Holtec will provide a schedule for responses www.holtec.com l Page 5

Thank You Krishna P. Singh Technology Campus 1 Holtec Boulevard Camden, NJ 08104 Tel: (856) 797-0900 www.holtec.com www.holtec.com l Page 6