ML18295A170
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| ML18295A170 | |
| Person / Time | |
|---|---|
| Issue date: | 10/22/2018 |
| From: | Cuadrado J Spent Fuel Licensing Branch |
| To: | |
| Cuadrado J | |
| Shared Package | |
| ML18295A167 | List: |
| References | |
| Download: ML18295A170 (3) | |
Text
Holtec HI-STORE CISF Review -
Discussion of 5/24/18 RAI Responses on Geotechnical Stability Assessment Division of Spent Fuel Management, NMSS U.S. Nuclear Regulatory Commission Public Meeting with Holtec International October 23, 2018
Summary
- March 28, 2018 - NRC issues request for additional information (RAI), Part 1:
- RAI 2 Requests additional details on geotechnical stability assessment for HI-STORE CISF site
- May 24, 2018 - Holtec submits response to RAI: HI-STORE Bearing Capacity and Settlement Calculations (HI-2188143) (Proprietary)
- NRC staff has identified concerns with Holtec's response:
- Site geotechnical parameters used
- Immediate soil settlement estimation
- Consolidation soil settlement estimation
- Secondary settlement estimation
- Effects of Construction sequence on settlement
- Pad interactions
- Spatial Variation of Soil Properties on Pad Settlement
Conclusions
- NRC staff needs additional information to address RAIs on geotechnical stability and determine compliance with NRC's safety regulations
- Timely completion of NRC review of Holtec's HI-STORE CISF application requires complete and high quality responses to NRC staff's questions
- NRC staff is open to additional discussion with applicant prior to submission of responses