ML25142A148
| ML25142A148 | |
| Person / Time | |
|---|---|
| Site: | Electric Power Research Institute |
| Issue date: | 05/23/2025 |
| From: | Delosreyes J Licensing Processes Branch |
| To: | Kucuk A Electric Power Research Institute |
| Shared Package | |
| ML25142A157 | List: |
| References | |
| Download: ML25142A148 (2) | |
Text
From:
James Delosreyes To:
Kucuk, Aylin Cc:
RidsNrrOd Resource; RidsNrrDnrl Resource; RidsNrrDnrlNphp Resource; RidsNrrDorlLlpb Resource; RidsNrrLADHarrison Resource; RidsACRS_MailCTR Resource; RidsNrrDorl Resource; RidsNrrDnrlNvib Resource; Lois James; David Rudland; Seung Min; Eric Palmer; David Dijamco; Matthew Mitchell; Angie Buford; Samuel Lee; Jennie Rankin; Aida Rivera-Varona; fsmith@epri.com; Muftuoglu, Kurshad
Subject:
Issuance of RAIs for EPRI Report 3002023895 xLPR Estimation of PWR LOCA Frequencies (MRP-480)
Date:
Friday, May 23, 2025 11:14:00 AM Attachments:
ML25142A151.pdf Dr. Aylin Kucuk Program Manager, Nuclear Fuels Electric Power Research Institute Palo Alto Office 3420 Hillview Ave.
Palo Alto, CA 94304-133
Dear Dr. Aylin Kucuk:
By letter dated April 26, 2024 (Agencywide Documents Access and Management System (ADAMS) Accession No.ML24121A203), Electric Power Research Institute (EPRI) submitted (1)
EPRI Report 3002028673, Loss-of-Coolant-Accident-Induced Fuel Fragmentation, Relocation, and Dispersal with Leak-Before-Break Credit - Alternative Licensing Strategy [ALS], (2) EPRI Report 3002028675 (NP)/3002028674 (P), LOCA [Loss of Coolant Accident] Analysis of Fuel Fragmentation, Relocation, and Dispersal [FFRD] for Westinghouse 2-Loop, 3-Loop and 4-Loop Plants - Proprietary, Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation (collectively called ALS for LOCA Analysis of FFRD), and (3)EPRI Report 3002023895, Materials Reliability Program: xLPR [Extremely Low Probability of Rupture]
Estimation of PWR Loss-of-Coolant Accident Frequencies (MRP-480) to the U.S. Nuclear Regulatory Commission (NRC) for review and approval.
By email dated June 25, 2024 (ADAMS Accession No. ML24170A812), the NRC accepted the EPRI topical reports (TRs) for review and approval. The NRC acceptance package includes completion forms and schedules for three TRs, and the withholding determination for the proprietary TR.
The NRC staff of the Vessels and Internals Branch (NVIB) and Piping and Head Penetrations Branch (NPHP) in the Division of New and Renewed Licenses (DNRL) is in the process of reviewing EPRI Report 3002023895. Based on our review, the NRC staff has identified the attached requests for additional information (RAIs).
The response is requested within 90 days from the date of this email.
If you have any questions, please contact me by e-mail james.delosreyes@nrc.gov.
ML25142A157 (package);
ML25142A148 (email);
+via RAI App
- via email OFFICENRR/DORL/LLPB/PM NRR/DNRL/NVIB/BC NRR/DORL/LLPB/BC NRR/DORL/LLPB/PM NAME JDelosreyes+
ABuford+
JRankin+
JDelosreyes DATE 5/19/2025 5/19/2025 5/19/2025 5/23/2025 OFFICENRR/DORL/LLPB/PM NAME LJames*
DATE 5/23/2025