ML110200503
| ML110200503 | |
| Person / Time | |
|---|---|
| Site: | Perry, 07200069, Holtec  |
| Issue date: | 02/25/2011 |
| From: | Vonna Ordaz NRC/NMSS/SFST |
| To: | Boland A Division of Nuclear Materials Safety III |
| Bjorkman G NMSS/SFST 301-492-3298 | |
| Shared Package | |
| ML110200478 | List: |
| References | |
| ML103010389 | |
| Download: ML110200503 (2) | |
Text
February 25, 2011 MEMORANDUM TO: Anne T. Boland, Director Division of Nuclear Materials Safety Region III FROM:
Vonna L. Ordaz, Director
/RA/
Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards
SUBJECT:
RESPONSE TO REGION III TECHNICAL ASSISTANCE REQUEST FOR FIRSTENERGY OPERATING COMPANY PERRY NUCLEAR POWER PLANT, UNIT 1, EVALUATION OF FREESTANDING STACK-UP CONFIGURATION (ML103010389), DATED 10-29-2010 On October 29, 2010, NRC Region III transmitted a Technical Assistance Request (TAR) to the Nuclear Material Safety and Safeguards (NMSS) Division of Spent Fuel Storage and Transportation (DSFST), requesting staff to review the Perry Nuclear Power Plant, Unit 1, (Perry) 10 CFR 50.59 screen and evaluation for the stack-up configuration to determine whether the licensee was within their 10 CFR Part 50 and Part 72 licensing basis, or whether a license amendment request (LAR) was required. The stack-up configuration refers to the conditions when the Holtec HI-TRAC transfer cask with loaded multi-purpose canister (MPC) inside is resting atop the HI-STORM storage overpack. While in the stack-up configuration, the loaded MPC is transferred from the HI-TRAC to the HI-STORM. During this operation, when the HI-TRAC is not attached to the single-failure-proof crane, the potential exists for the stack-up to tip-over during a seismic event. Region III inspectors identified a potential concern with the lack of seismic restraint provided during the stack-up step for the transfer of the MPC from the HI-TRAC to the HI-STORM. The objective of the review was to determine whether the licensee is within their licensing basis and to provide a technical review of the licensees Calculation No.
G58-P-001.
DSFST completed its review of the licensees 10 CFR 50.59 screen and evaluation and provides the enclosed assessment in response to Region IIIs TAR. Based DSFSTs review of the methodology, approach, results and conclusions documented by the licensee, as referenced in the enclosure to this letter, the SFST staff determined that Perry should have requested a LAR. The detailed basis for this conclusion, and evaluation of the licensees calculation, as well as evaluation of a similar calculation performed by Holtec, are provided in the enclosure to this letter.
CONTACT:
Gordon Bjorkman, DSFST 301-492-3298 Docket Nos: 72-1014, 72-69, 50-440
Enclosure:
Response to R-III TAR
MEMORANDUM TO: Anne T. Boland, Director February 25, 2011 Division of Nuclear Materials Safety Region III FROM:
Vonna L. Ordaz, Director
/RA/
Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards
SUBJECT:
RESPONSE TO REGION III TECHNICAL ASSISTANCE REQUEST FOR FIRSTENERGY OPERATING COMPANY PERRY NUCLEAR POWER PLANT, UNIT 1, EVALUATION OF FREESTANDING STACK-UP CONFIGURATION (ML103010389), DATED 10-29-2010 On October 29, 2010, NRC Region III transmitted a Technical Assistance Request (TAR) to the Nuclear Material Safety and Safeguards (NMSS) Division of Spent Fuel Storage and Transportation (DSFST), requesting staff to review the Perry Nuclear Power Plant, Unit 1, (Perry) 10 CFR 50.59 screen and evaluation for the stack-up configuration to determine whether the licensee was within their 10 CFR Part 50 and Part 72 licensing basis, or whether a license amendment request (LAR) was required. The stack-up configuration refers to the conditions when the Holtec HI-TRAC transfer cask with loaded multi-purpose canister (MPC) inside is resting atop the HI-STORM storage overpack. While in the stack-up configuration, the loaded MPC is transferred from the HI-TRAC to the HI-STORM. During this operation, when the HI-TRAC is not attached to the single-failure-proof crane, the potential exists for the stack-up to tip-over during a seismic event. Region III inspectors identified a potential concern with the lack of seismic restraint provided during the stack-up step for the transfer of the MPC from the HI-TRAC to the HI-STORM. The objective of the review was to determine whether the licensee is within their licensing basis and to provide a technical review of the licensees Calculation No.
G58-P-001.
DSFST completed its review of the licensees 10 CFR 50.59 screen and evaluation and provides the enclosed assessment in response to Region IIIs TAR. Based DSFSTs review of the methodology, approach, results and conclusions documented by the licensee, as referenced in the enclosure to this letter, the SFST staff determined that Perry should have requested a LAR. The detailed basis for this conclusion, and evaluation of the licensees calculation, as well as evaluation of a similar calculation performed by Holtec, are provided in the enclosure to this letter.
CONTACT:
Gordon Bjorkman, DSFST 301-492-3298 Docket Nos: 72-1014, 72-69, 50-440
Enclosure:
Response to R-III TAR Distribution: Closes DSFST Ticket No: 201100002 SFST r/f BWhite, DWeaver, VOrdaz BSpitzberg, R1V CLipa, RIII MFranke, RII JJoustra, RI DPstrak MSampson RTemps ADAMS Pkg ML110200478 OFC:
NMSS NMSS NMSS NRR/DE NRR/DORL OGC NAME:
G. Bjorkman M. Sampson D. Weaver D. Skeen A. Howe E. Bowden-Berry DATE:
1/20/11 1/20/11 1/21/11 1/25/11 1/25/11 2/7/11 OFC:
NMSS NMSS NAME:
W. Wheatley &
D.Damiano D.Weaver for V. Ordaz DATE:
1/21/11 2/25/11