ML22208A046
| ML22208A046 | |
| Person / Time | |
|---|---|
| Site: | HI-STORM 100 |
| Issue date: | 07/26/2022 |
| From: | Yen-Ju Chen Storage and Transportation Licensing Branch |
| To: | Holtec |
| Yen-Ju C 3014151018 | |
| References | |
| Download: ML22208A046 (1) | |
Text
NRC FORM 699 U.S. NUCLEAR REGULATORY COMMISSION (11-2017)
CONVERSATION RECORD NAME OF PERSON(S)/TITLE CONTACTED OR IN CONTACT WITH YOU DATE OF CONTACT TYPE OF CONVERSATION 01/29/2021 E-MAIL E-MAIL ADDRESS TELEPHONE NUMBER TELEPHONE INCOMING OUTGOING ORGANIZATION DOCKET NUMBER(S)
Holtec International 72-1040 LICENSE NAME AND NUMBER(S) MAIL CONTROL NUMBER(S)
SUBJECT HI-STORM UMAX Amendment No. 3, Clarification on NRC's RAI-21, 22, and 23
SUMMARY
AND ACTION REQUIRED (IF ANY)
Holtec Attendees: Stefan Anton, Debu Majumdar, Vadym Makodym, Christopher O'Mullane, Brian Seawright NRC Attendees: Chris Bajwa, Richard Chang, Yen-Ju Chen, John McKirgan, Antonio Rigato, Jeremy Smith This is a call to clarify Holtec's understanding of NRC's RAI-21, 22, and 23 (ML20325A257).
RAI-21: Holtec stated that the response to the original RAI-21 (ML20002A300) has addressed canister dryness and potential flooding. The staff indicated that Holtec analyzed the canister performance in the initial application for UMAX, but did not discuss the performance of 24PT1 under UMAX storage condition. The staff needs more information to demonstrate leaktight. Holtec said it will provide more information.
RAI-22 & 23: Holtec noted that the staff does not appear to recognize or accept that the canister is always internally dry, which is the issue in RAI-21. The staff stated that Holtec only analyzed one accident scenario for criticality, and the staff cannot determine the system's maximum reactivity based on one scenario. Holtec understood that the staff needs reasonable assurance on the claimed maximum reactivity, and would determine how to respond.
Holtec needs to respond to RAI-21, 22, and 23; provide supplemental information to Holtec's response to RAI-5, 14, and 16 (ML20104C050); and provide additional information to the two issues discussed at the December 15, 2020 public meeting (CoC boundary and aging management). Holtec will provide the response schedule in the following week.
NAME OF PERSON DOCUMENTING CONVERSATION Yen-Ju Chen SIGNATURE DATE OF SIGNATURE Digitally signed by Yen-Ju Chen Yen-Ju Chen Date: 2022.07.26 15:08:23 -04'00' NRC Form 699 (11-2017) Page 1 of 1