ML20236V971

Forwards RAI Re License Request for Amend TSs * Suppl to Support Mod to Increase SFP Capacity

ML20236V971
Person / Time
Site:	Callaway
Issue date:	07/31/1998
From:	Thomas K NRC (Affiliation Not Assigned)
To:	Randolph G UNION ELECTRIC CO.
References
TAC-MA1113, NUDOCS 9808040322
Download: ML20236V971 (3)

Text

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v l July ' 31, 1998 I Mr. Garry L. Randolph Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, Missouri 65251

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION (RAI)- UNION ELECTRIC i COMPANY - CALLAWAY PLANT, UNIT 1 (TAC NO. MA1113)

Dear Mr. Randolph:

The .NRC staff has reviewed Union Electric Company's request for an amendment to the Callaway plant, Unit 1 technical specifications dated February 24,1998, and its supplement dated May 27,1998, to support the modification to increase the spent fuel pool capacity at the Callaway Plant. As a result of the review, the staff has determined that additionalinformation is needed to complete the review. The information needed is detailed in the enclosure.

To assist the staff in meeting its review schedule, we request that you respond to the RAI in writing within 30 days of receipt of this letter. l If you have any questions, please contact me at (301) 415-1362.

Sincerely,l Origina Signed By Kristine M. Thomas, Project Manager Project Directorate IV-2 Division of Reactor Projects - lil/IV Office of Nuclear Reactor Regulation Docket No. 50-483 DISTRIBUTION:

Docket File ACRS, TWFN

Enclosure:

Request for Additional PUBLIC PDIV-2 Reading Information KParczewski OGC,015B18 EAdensam WJohnson, RIV cc w/ encl: See next page WBateman PGwynn, RIV KThomas EPeyton LKopp, SRXB DOCUMENT NAME: CAL 1113B.RAI f

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Mr. Garry L. Randolph July 31,1998

[ cc:

Professional Nuclear Mr. Otto L. Maynard Consulting, Inc. President and Chief Executive Officer 19041 Raines Drive Wolf Creek Nuclear Operating Corporation Derwood, Maryland 20855 Post Office Box 411 i Burlington, Kansas 66839 John O'Neill, Esq. I Shaw, Pittman, Potts & Trowbridge Mr. Dan 1. Bolef, President 2300 N. Street, N.W. Kay Drey, Representative l Washington, D.C. 20037 Board of Directors Coalition for the Environment

! Mr. H. D. Bono 6267 Delmar Boulevard I

Supervising Engineer University City, Missouri 63130

, Quality Assurance Regulatory Support Union Electric Company Mr. Lee Fritz Post Office Box 620 Presiding Commissioner Fulton, Missouri 65251 Callaway County Court House '

10 East Fifth Street l U.S. Nuclear Regulatory Commission Fulton, Missouri 65151 Resident inspector Office

, 8201 NRC Road Mr. Alan C. Passwater, Manager i Steedman, Mist.ouri 65077-1302 Licensing and Fuels i Union Electric Company Mr. J. V. Laux, Manager Post Office Box 66149 Quality Assurance St. Louis, Missouri 63166-6149 Union Electric Company i Post Office Box 620 Fulton, Missouri 65251 Manager- Electric Department Missouri Public Service Commission 301 W. High Post Office Box 360

! Jefferson City, Missouri 65102 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavilion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Mr. Ronald A. Kucera, Deputy Director Department of Natural Resources P.O. Box 176 Jefferson City, Missouri 65102 l

ENCLOSURE REQUEST FOR ADDITIONAL INFORMATl0B UNION ELECTRIC COMPANY CAI I AWAY PLAN'. UNIT 1 DOCKET NO. 50-483

1. The Westinghouse improved Technical Specifications (ITS), in accordance with NRC Generic Letter 90-02, Supplement 1, allow limited substitution of fuel rods by zirconium alloy or stainless steel filler rods, but do not allow vacancies (water). Therefore, the proposed ITS 4.2.1 should delete the words, "or by vacancies."

2. Proposed ITS 4.3.1.2 specifies that the new fuel racks containing fuel enriched to 5.0 wt% U-235 are designed and maintained with k-eff less than or equal to 0.95 if fully flooded with unborated water, or less than or equal to 0.98 if moderated by aqueous foam. Please submit for NRC review the criticality analysis which justifies these specifications.

3. Credit is taken for soluble boron under accident conditions. What are the plant requirements (i.e., technical specifications, administrative, etc.) for minimum soluble boron concentration? What is the minimum value and surveillance interval?

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