ML102250192
| ML102250192 | |
| Person / Time | |
|---|---|
| Site: | Byron, LaSalle  |
| Issue date: | 08/12/2010 |
| From: | Eric Benner NRC/NMSS/SFST/LID/LB |
| To: | Christine Lipa Division of Nuclear Materials Safety III |
| Tripathi B NMSS\SFST 492-3281 | |
| Shared Package | |
| ML102250189 | List: |
| References | |
| DSFST-2010-00010, TAR ML101680320 | |
| Download: ML102250192 (2) | |
Text
August 12, 2010 MEMORANDUM TO: Christine A. Lipa, Branch Chief Division of Nuclear Materials Safety, Region III FROM: Eric Benner, Branch Chief /RA/ K. Hardin for Licensing Branch Division of Spent Fuel Storage and Transportation
SUBJECT:
RESPONSE TO REGION III TECHNICAL ASSISTANCE REQUEST -
LASALLE STATION AND BYRON STATION INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI) PAD SEISMIC DESIGN REGION III TECHNICAL ASSISTANCE REQUEST (TAR) ML101680320 DATED 6-14-2010 On June 14, 2010, NRC Region III transmitted a Technical Assistance Request (TAR) to the NMSS Division of Spent Fuel Storage and Transportation (DSFST), concerning the independent spent fuel storage installation (ISFSI) Pad constructed at the LaSalle Nuclear Power Station (LaSalle Station), and at the Byron Nuclear Power Station (Byron Station). The potential concerns identified in the TAR were raised as part of an inspection by Region III. In your request, you asked that DSFST review the documents and calculations referenced in the TAR that were performed by the licensee (Exelon Nuclear) and their contractor(s) HOLTEC and others that address the seismic analysis and design and analysis of the ISFSI Pad. The scope of our review was limited to the licensees evaluations in the referenced documents (Package ADAMS accession number ML101680320) and additional information received from Region III on July 30, 2010. The objective of the review was to determine whether the licensees written evaluations met regulatory requirements.
DSFST has completed its review of the licensees seismic analyses and design of the LaSalle Station and Byron Station ISFSI Pads and provides the enclosed assessment in response to your assistance request. Based on our review of the methodology, approach, results and conclusions documented by the licensee and its consultants, as referenced in the enclosure to this letter, the SFST staff determined that the soil-structure interaction analyses and the design of the LaSalle Station and Byron Station ISFSI pads did not appear to satisfy the acceptance criteria of 10CFR Part 72.212 specifically Section 72.212(b)(2)(i). Given the immediate need for the licensee to load casks and move them onto to the ISFSI pad at these plants, a path forward has been suggested in the enclosure to this letter.
CONTACT: Bhasker (Bob) Tripathi DSFST 301-492-3281
Enclosure:
Response to Region III TAR - LaSalle and Byron ISFSI Pad Seismic Analysis.
August 12, 2010 MEMORANDUM TO: Christine A. Lipa, Branch Chief Division of Nuclear Materials Safety, Region III FROM: Eric Benner, Branch Chief /RA/ K. Hardin for Licensing Branch Division of Spent Fuel Storage and Transportation
SUBJECT:
RESPONSE TO REGION III TECHNICAL ASSISTANCE REQUEST -
LASALLE STATION AND BYRON STATION INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI) PAD SEISMIC DESIGN REGION III TECHNICAL ASSISTANCE REQUEST (TAR) ML101680320 DATED 6-14-2010 On June 14, 2010, NRC Region III transmitted a Technical Assistance Request (TAR) to the NMSS Division of Spent Fuel Storage and Transportation (DSFST), concerning the independent spent fuel storage installation (ISFSI) Pad constructed at the LaSalle Nuclear Power Station (LaSalle Station), and at the Byron Nuclear Power Station (Byron Station). The potential concerns identified in the TAR were raised as part of an inspection by Region III. In your request, you asked that DSFST review the documents and calculations referenced in the TAR that were performed by the licensee (Exelon Nuclear) and their contractor(s) HOLTEC and others that address the seismic analysis and design and analysis of the ISFSI Pad. The scope of our review was limited to the licensees evaluations in the referenced documents (Package ADAMS accession number ML101680320) and additional information received from Region III on July 30, 2010. The objective of the review was to determine whether the licensees written evaluations met regulatory requirements.
DSFST has completed its review of the licensees seismic analyses and design of the LaSalle Station and Byron Station ISFSI Pads and provides the enclosed assessment in response to your assistance request.
Based on our review of the methodology, approach, results and conclusions documented by the licensee and its consultants, as referenced in the enclosure to this letter, the SFST staff determined that the soil-structure interaction analyses and the design of the LaSalle Station and Byron Station ISFSI pads did not appear to satisfy the acceptance criteria of 10CFR Part 72.212 specifically Section 72.212(b)(2)(i). Given the immediate need for the licensee to load casks and move them onto to the ISFSI pad at these plants, a path forward has been suggested in the enclosure to this letter.
CONTACT: Bhasker (Bob) Tripathi DSFST 301-492-3281
Enclosure:
Response to Region III TAR - LaSalle and Byron ISFSI Pad Seismic Analysis.
Distribution: DSFST Ticket No: 201000010 SFST r/f BWhite, RLorson, VOrdaz, CLipa, RIII MLearn, RIII DHills, RIII VMeghani, RIII ADAMS Pkg. ML102250189 OFC SFST SFST SFST SFST SFST K.Hardin for NAME B. Tripathi G. Bjorkman C. Regan E. Benner R. Lorson DATE 08/12 /10 08/12 /10 08/12 /10 08/ 12/10 08/12/10