ML20209E559

Informs That as Result of NRC Review of Util Responses to GL 92-01,rev 1,suppl 1 & Suppl 1 Rai,Staff Revised Info in Reactor Vessel Integrity Database & Releasing Database as Rvid Version 2.TAC MA0531 Closed

ML20209E559
Person / Time
Site:	Callaway
Issue date:	07/08/1999
From:	Donohew J NRC (Affiliation Not Assigned)
To:	Randolph G UNION ELECTRIC CO.
References
GL-92-01, GL-92-1, TAC-MA0531, TAC-MA531, NUDOCS 9907150073
Download: ML20209E559 (5)

Text

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July 8, 1999 Mr. Garry L. Randolph Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, MO 65251

SUBJECT:

GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1, " REACTOR VESSEL STRUCTURAL INTEGRITY," FOR CALLAWAY PLANT, UNIT 1 (TAC NO.

MA0531)

Dear Mr. Randolph:

On May 19,1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter 92-01, Revision 1, Supplement 1 (GL 92-01, Rev.1, Supp.1), " Reactor Vessol Structural Integrity,"

to holders of nuclear operating licenses. In issuing the GL the staff requirod addressees of the GL to:

(1) identify, collect and report any new data pertinent to the analysis of structural integrity of the reactor pressure vessels (RPVs) at their nuclear plants, and (2) to assess the impact of that data on their RPV integrity analyses relative to the requirements of Sections 50.60 and 50.61, and Appendices G and H to 10 CFR Part 50.

You submitted your initial response to the GL on August 11,1995, and provided the requested 4 information relative to the structural integrity assessment for Callaway Plant, Unit 1 (Callaway).

The staff evaluated your response to the GL and provided its conclusions in a letter on August 2,1996. However, since the time of the staff's closure letter, the Combustion Engineering (CE)

Owners Group and the Babcock and Wi!cox (B&W) Owners Group have each submitted additional data regarding the alloying chemistries of beltline welds in CE and B&W fabricated vessels. The additional alloying data were submitted in Topical Reports CE NPSD-1039, Revision 2, CE NPSD-1119, Revision 1, for CE fabricated RPV welds, and BAW-2325, Revision 1, for B&W fabricated RPV welds. In addition, Chicago Bridge and Iron (CB&l) BWR data were submitted in Topical Report BWRVIP-46. As a result of the efforts by CE and B&W, the staff determined that additional information was necessary relative to the structural integrity assessments for your plant.

On April 9,1998, the staff issued a request for additional information (RAl) in regard to the alloying chemistries of beltline welds, your assessment of surveillance data for your facility, pressure-temperature (P-T) limits, and pressurized thermal shock (PTS) assessment (only applicable to PWRs) for Callaway. In general, with respect to the contents of the RAI, the staff requested that you reassess the alloying chemistries for the beltline welds and RPV surveillance welds relative to the chemistries provided la the applicable topical report, and provide the impact of any changes to the best-estimate chemistries for your beltline RPV welds on the structural integrity assessmenis for Callaway relative to the requirements of Sections 50.60 and 50.61, and Appendices G and H to 10 CFR Part 50, as applicable to the licensing basis for Callaway.

9907150073 990708 PDR ADOCK 05000483 P PDR

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i G. Randolph July 8, 1999 {

1 1

I You provided your response to the staff's RAI on July 10,1998. As a result of the staff's review of your responses to GL 92-01, Revision 1, GL 92-01, Rev.1, Supp.1, and the Supp.1 RAl, the staff has revised the information in the Reactor Vessel Integrity Database (RVID) and is releasing it as RVID Version 2.

The new database diskettes are posted on the world-wide-web at a location which is linked to the NRC home page (http://www.nrc. gov /NRR/RVID/index.html). We recommend that you review this information. If the staff does not receive comments by September 1,1999, we will assume that the data entered into the RVID are acceptable for your plant. No additional information is necessary with regard to the structuralintegrity assessments. Future submittals on P-T limits, PTS (only applicable to PWRs), or upper shelf energy (USE) should reference the most current information.

You have adequately responded to the GL for Callaway and this letter closes the staff's efforts in regard to TAC No. MA0531. The staff appreciates your efforts in regard to this matter.

Sincerely, I o w, Project Manager, Section 2 Project Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-483 1

cc: See next page DISTRIBUTION:

Docket File PUBLIC PDIV-2 Reading SRichards(clo)

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EPeyton KWichman Alee OGC ACRS I l DGraves, Region IV l

OFC PM/ PDM s 2 PDIV-2/LA PDIV-2/SC NAME JDo EP e bekd DATE 9/r jgg q j q jgg q jyjgg l OFFICIAL RECORD COPY DOCUMENT NAME: G:\CALLAWAY\ Letter-GL9201.CWeloseout.wpd 140041

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G. Randolph You pro /ided your response to the staff's RAI on July 10,1998. As a result of the staff's review of your responset to GL 92-01, Revision 1, GL 92-01, Rev.1, Supp.1, and the Supp.1 RAI, the staff has revised the information in the Reactor Vessel Integrity Database (RVID) and is releasing it as RVID Version 2.

The r.ew daabase diskettes are posted on the world-wide-web at a location which is linked to the NRC home page (http://www.nrc. gov /NRR/RVID/index.html ). We recommend that you review this information.

If the staff does not receive comments by September 1,1999, we will assume that the data entered i'ito the RVID are acceptable for your plant. No additionalinformation is necessary with regard to the structural integrity assessments. Future submittals on P-T limits, PTS (only applicable to PWRs), or upper shelf energy (USE) should reference the most current information.

.You have adequately responded to the GL for Callaway and this letter closes the staffs efforts in regard to TAC No. MA0531. The staff appreciates your efforts in regard to this matter.  !

l ely, '

ac onoiew, roject Manager, Section 2

( Project Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-483 cc: See next page DISTRIBUTION:

Docket File PUBLIC PDIV-2 Reading JZwolinski/SBlack SRichards JDonohew EPeyton ,

KWichman Alee OGC ACRS DGraves, Region IV DOCUMENT NAME: G:\CALLAWAY\ Letter-GL9201.CWeloseout.wpd -

OFC PM4RDly-T PDIV-2/LA PQ V 2/SC 6/HCA /Vl&mD ((20/ff NAME J EIehb S0embek O '

DATE 06/h/99 066 8 /99 hl30

/99 OFFICIAL RECORD COPY

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G. Randolph You provided your response to the staff's RAI on July 10,1998. As a result of the staffs review of your responses to GL 92-01, Revision 1, GL 92-01, Rev.1, Supp.1, and the Supp.1 RAI, the staff has revised the information in the Reactor Vessel Integrity Database (RVID) and is releasing it as RVID Version 2.

The new database diskettes are posted on the world-wide-web at a location which is linked to the NRC home page (http 1/www.nrc. gov /NRR/RVID/index.html ). We recommend that you review this information. If the staff does not receive comments by September 1,1999, we will assume that the data entered into the RVID are acceptable for your plant. No additional information is necessary with regard to the structural integrity assessments. Future subn ittals on P-T limits, PTS (only applicable to PWRs), or upper shelf energy (USE) should reference the most current information.

You have adequately responded to the GL for Callaway and thisietter closes the staffs efforts l in regard to TAC No. MA0531. The staff appreciates your efforts in regard to this matter.

Sincerely, I l I D- 'dY Jack N. Donohew, Project Manager, Section 2 roject Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-483 cc: See next page

[ __

Callaway Plant, Unit 1 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 Burlington, Kansas 66839 John O'Neill, Esq.

Shaw, Pittman, Potts & Trowbridge Mr. Dan 1. Bolef, President 2300 N. Street, N.W. Kay Drey, Representative Washington, D.C. 20037 Board of Directors Coalition for the Environment Mr. H. D. Bono 6267 Delmar Boulevard 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 U.S. Nuclear Regulatory Commission Fulton, Missouri 65151 Resident inspector Office 8201 NRC Road Mr. Alan C. Passwater, Manager Steedman, Missouri 65077-1302 Licensing and Fuels Union Electric Company Mr. J. V. Laux, Manager Post Office Box 66149 Qual;ty Assurance St. Louis, Missouri 63166-6149 Union Electric Company 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 e