ML080520273

Request for Additional Information Regarding Relocating Requirements for Spent Fuel Pool Crane System

ML080520273
Person / Time
Site:	Kewaunee
Issue date:	02/22/2008
From:	Milano P NRC/NRR/ADRO/DORL/LPLIII-1
To:	Christian D Dominion Energy Kewaunee
Milano P, NRR/DORL/LPLIII-1, 415-1457
References
TAC MD7301
Download: ML080520273 (6)

Text

February 22, 2008 Mr. David A. Christian President and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711

SUBJECT:

KEWAUNEE POWER STATION - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELOCATING REQUIREMENTS FOR SPENT FUEL POOL CRANE SYSTEM (TAC NO. MD7301)

Dear Mr. Christian:

By letter to the Nuclear Regulatory Commission (NRC) dated November 9, 2007, Dominion Energy Kewaunee Inc. submitted a request for an amendment to modify Technical Specification (TS) 3.8.a.7 related to the movement of heavy loads over and in the spent fuel pools and would relocate the modified requirements to a licensee-controlled document, the Kewaunee Power Station Technical Requirements Manual. The proposed amendment would incorporate the use of a single-failure-proof lifting system for handling of necessary heavy loads.

The NRC staff is reviewing your submittal and has determined that additional information is needed to complete its review. The specific information requested is addressed in the enclosure to this letter.

This request for additional information was discussed with members of your staff, and it was agreed that a response would be provided within 45 days of the date of this letter. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1457.

Sincerely,

/RA/

Patrick D. Milano, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-305

Enclosure:

Request for Additional Information cc w/encl: See next page

Mr. David A. Christian President and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711

SUBJECT:

KEWAUNEE POWER STATION - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELOCATING REQUIREMENTS FOR SPENT FUEL POOL CRANE SYSTEM (TAC NO. MD7301)

Dear Mr. Christian:

By letter to the Nuclear Regulatory Commission (NRC) dated November 9, 2007, Dominion Energy Kewaunee Inc. submitted a request for an amendment to modify Technical Specification (TS) 3.8.a.7 related to the movement of heavy loads over and in the spent fuel pools and would relocate the modified requirements to a licensee-controlled document, the Kewaunee Power Station Technical Requirements Manual. The proposed amendment would incorporate the use of a single-failure-proof lifting system for handling of necessary heavy loads.

The NRC staff is reviewing your submittal and has determined that additional information is needed to complete its review. The specific information requested is addressed in the enclosure to this letter.

This request for additional information was discussed with members of your staff, and it was agreed that a response would be provided within 45 days of the date of this letter. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1457.

Sincerely,

/RA/

Patrick D. Milano, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-305

Enclosure:

Request for Additional Information cc w/encl: See next page DISTRIBUTION:

PUBLIC RidsNrrLATHarris RidsOgcRp LPL3-1 R/F RidsNrrDssSbpb RidRgn3MailCenter RidsNrrDorlLpl3-1 S. Jones, NRR RidsNrrDorlDpr RidsNrrPMPMilano RidsAcrsAcnw&mMailCenter ADAMS Accession Number: ML080520273 OFFICE LPL3-2/PM LPL3-2/LA SBPB/BC LPL3-2/(A)BC NAME PMilano THarris via *Email DHarrison JCushing DATE 02/21/08 02/21/08 02/21/08 02/ 22 /08 OFFICIAL RECORD COPY

Kewaunee Power Station cc:

Resident Inspectors Office Ms. Lillian M. Cuoco, Esq.

U.S. Nuclear Regulatory Commission Senior Counsel N490 Hwy 42 Dominion Resources Services, Inc.

Kewaunee, WI 54216-9510 120 Tredegar Street Riverside 2 Ms. Leslie N. Hartz Richmond, VA 23219 Dominion Energy Kewaunee, Inc.

Kewaunee Power Station N 490 Highway 42 Kewaunee, WI 54216 Mr. Chris L. Funderburk Director, Nuclear Licensing and Operations Support Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711 Mr. Thomas L. Breene Dominion Energy Kewaunee, Inc.

Kewaunee Power Station N490 Highway 42 Kewaunee, WI 54216

REQUEST FOR ADDITIONAL INFORMATION KEWUANEE POWER STATION DOCKET NO. 50-305 By letter dated November 9, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML073170705), Dominion Energy Kewaunee Inc. (DEK) requested an amendment to Technical Specifications 3.8.a.7 related to the movement of heavy loads over and in the spent fuel pools. The proposed amendment would incorporate the use of a single-failure-proof lifting system for handling of necessary heavy loads over or in the spent fuel pool with irradiated fuel in either the fuel storage racks or in the just-loaded spent fuel canister in the spent fuel pool. In reviewing the application, the Nuclear Regulatory Commission (NRC) staff has determined that the following information is needed in order to complete its review:

1. In Attachment 5, NUREG-0612 Compliance Matrix for Upgraded KPS AB Crane Lifting System, to the November 9, 2007, application, DEK describes conformance to guidance contained in NUREG-0612, Section 5.1.6(1)(b), regarding the use of slings. In that matrix item, DEK states that slings made of metallic or synthetic material may be used in making heavy load lifts with the Kewaunee Power Station (KPS) auxiliary building crane system, based on the nature of the lift and the lifting location.

Revision 1 to NRC Standard Review Plan Section 9.1.5, Overhead Heavy Load Handling Systems, Revision 1, dated March 2007, provides guidance specifying that slings used with single-failure-proof handling systems should satisfy the criteria of American Society of Mechanical Engineers (ASME) Code B30.9-2003, "Slings," and be constructed of metallic material (chain or wire rope). As described in NRC Regulatory Issue Summary 2005-25, Supplement 1, Clarification of Control of Heavy Loads, May 29, 2007, the intent of specifying metallic sling material is to reduce the potential for a single rigging error (i.e., failure of sling protection material to prevent cutting of lower durability synthetic slings) to result in the drop of a heavy load that could threaten the safety of stored fuel in the spent fuel pool or the capability to safely shutdown the reactor and maintain it in a safe shutdown condition.

Clarify how the nature of the lift and the lifting location will influence the selection of slings (or the use of special lifting devices instead of slings) to satisfy the intent of the guidance.

2. In Attachment 6, NUREG-0554 Compliance Matrix for Upgraded KPS AB Crane Lifting System, to the application, DEK describes conformance to guidance contained in NUREG-0554, Single-Failure-Proof Cranes for Nuclear Power Plants, Section 2.4, regarding material properties of crane structural components. In that matrix item, DEK states that the welds on the existing bridge structure, whose failure could result in the drop of the critical load, were subject to nondestructive examination (NDE) after cold proof load testing.

ENCLOSURE

Section 2.4 of NUREG-0554 provides guidance specifying that welds whose failure could result in the drop of the critical load should be subject to NDE, and NDE of critical areas should be repeated at intervals.

Clarify the standards and methods employed in the conduct of the NDE. Describe the frequency and type of repeat inspections that will be performed to verify continued structural integrity of the crane bridge.