ML022620608

Ltr, RAI on Proposed Technical Specification Amendment to Spent Fuel Assembly Storage (Tac Nos. MB5014 and MB5015)

ML022620608
Person / Time
Site:	Mcguire, McGuire
Issue date:	09/19/2002
From:	Martin R NRC/NRR/DLPM/LPD2
To:	Barron H Duke Energy Corp
Martin R, NRR/DLPM, 415-1493
References
TAC MB5014, TAC MB5015
Download: ML022620608 (4)

Text

September 19, 2002 Mr. H. B. Barron Vice President, McGuire Site Duke Energy Corporation 12700 Hagers Ferry Road Huntersville, NC 28078-8985

SUBJECT:

WILLIAM B. MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 RE: REQUEST FOR ADDITIONAL INFORMATION ON PROPOSED TECHNICAL SPECIFICATION AMENDMENTS TO SPENT FUEL ASSEMBLY STORAGE (TAC NOS. MB5014 AND MB5015)

Dear Mr. Barron:

By letter dated April 18, 2002, you submitted a license amendment request for McGuire Nuclear Station, Units 1 and 2 to revise the spent fuel pool storage criteria and the fuel enrichment and burnup requirements. The staff has identified several issues that are required to be addressed to facilitate completion of this review.

Our questions are provided in the Enclosure. The staff requests a response to this Request for Additional Information within 14 days of the date of this letter.

Please contact Bob Martin at (301) 415-1493 if you have any other questions on these issues.

Sincerely,

/RA/

Robert E. Martin, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370

Enclosure:

Request for Additional Information cc: See next page

ML022620608 OFFICE PDII-1PM PDII-1/LA PDII-1/SC NAME RMartin:as CHawes JNakoski DATE 08/18/02 09/12/02 09/18/02 WILLIAM B. MCGUIRE NUCLEAR STATION, UNITS 1 AND 2

1. Provide the boron concentration in the refueling water storage tank.

2. On page 7 of Attachment 6, submitted on April 18, 2002, the third assumption states that most calculations are done in two dimensions (2-D). Provide a basis for why 2-D calculations are still being performed.

3. Reactivity equivalencing is discussed in Attachment 6 on page 11, in the first paragraph of section 3.1.1 and again in Attachment 6 on page 13 in the first paragraph of section 3.1.2. Provide a basis for using reactivity equivalencing.

4. In Attachment 6, on page 16, the second paragraph mentions that biases were determined to account for axial variation in burnup when performing calculations in 2-D.

How are these biases determined and why are they conservative?

5. In Attachment 6, on page 33 in Table 9, the values for Region 2A minimum burnup column required for fuel with initial enrichments of 4.00, 4.50 and 4.75 weight percent U-235 are less than the values stated in Attachment 6, page 32, Table 9 of the August 1, 2000, submittal1. Provide an explanation for these differences.

6. In Attachment 6, on page 35, in Table 11, the values for boron credit requirements are less than the values stated in Attachment 6, page 34, Table 11 of the August 1, 2000, submittal. Provide an explanation for these differences.

1 The reference to the August 1, 2000, submittal refers to the licensees previous application for changes to the TS for this issue. That application was addressed by license amendments 197 and 178, as issued on November 27, 2000.

McGuire Nuclear Station cc:

Ms. Lisa F. Vaughn Ms. Karen E. Long Legal Department (PBO5E) Assistant Attorney General Duke Energy Corporation North Carolina Department of 422 South Church Street Justice Charlotte, North Carolina 28201-1006 P. O. Box 629 Raleigh, North Carolina 27602 County Manager of Mecklenburg County Mr. C. Jeffrey Thomas 720 East Fourth Street Manager - Nuclear Regulatory Charlotte, North Carolina 28202 Licensing Duke Energy Corporation Michael T. Cash 526 South Church Street Regulatory Compliance Manager Charlotte, North Carolina 28201-1006 Duke Energy Corporation McGuire Nuclear Site NCEM REP Program Manager 12700 Hagers Ferry Road 4713 Mail Service Center Huntersville, North Carolina 28078 Raleigh, North Carolina 27699-4713 Anne Cottingham, Esquire Mr. Richard M. Fry, Director Winston and Strawn Division of Radiation Protection 1400 L Street, NW. North Carolina Department of Washington, DC 20005 Environment, Health and Natural Resources Senior Resident Inspector 3825 Barrett Drive c/o U.S. Nuclear Regulatory Commission Raleigh, North Carolina 27609-7721 12700 Hagers Ferry Road Huntersville, North Carolina 28078 Mr. T. Richard Puryear Owners Group (NCEMC)

Dr. John M. Barry Duke Energy Corporation Mecklenburg County 4800 Concord Road Department of Environmental York, South Carolina 29745 Protection 700 N. Tryon Street Charlotte, North Carolina 28202 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210