ML20210T160

Informs That as Result of Staff Review of Licensee Responses to GL 92-01,rev,supp1 1, Reactor Vessel Structural Integrity, NRC Revised Info in Reactor Vessel Integrity Database & Is Releasing It as Rvid Version 2

ML20210T160
Person / Time
Site:	Seabrook
Issue date:	08/13/1999
From:	Harrison J NRC (Affiliation Not Assigned)
To:	Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
References
GL-92-01, TAC-MA0571, NUDOCS 9908190022
Download: ML20210T160 (5)

Text

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, e~fB UCg}t. UNITED STATC

r g NUCLEAR REGULATORY COMMISSION

• WASHINGTON, D.C. 20565-0001

• • • • • go August 13, 1999  !

.l Mr. Ted C. Feigenbaum Executive Vice President and Chief Nuclear Officer North Atlantic Energy Service Corporation c/o Mr. James M. Peschel P.O. Box 300 Seabrook, NH 03874

SUBJECT:

CLOSURE OF TAC NO. MA0571 - RESPONSE 3 TO THE REQUESTS FOR ADDITIONAL INFORMATION TO GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1, " REACTOR VESSEL STRUCTURAL INTEGRITY," FOR SEABROOK STATION, UNIT NO.1

Dear Mr. Feigenbaum:

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), "Reactoryessel Structural Integrity," to holde,s of nuclear operating licenses. In issuing the GL the staff required addressees of the GL to:

i (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 to Part 50 of Title 10 of the Code of Federal Regulations (10 CFR 50.60 and 10 CFR 50.61), and to the requirements of Appendices G and H to Part 50 of Title 10 of the Code of Federal Regulations (Appendices G and H to 10 CFR Part 50).

On August 21,1995, you submitted your initial response to GL 92-01, Rev.1, Supp.1 and l provided the requested information relative to the structural integrity assessment for the l Seabrook Station. The staff evaluated your response to GL 92-01, Rev.1, Supp.1, and i provided its conclusion relative to your response on August 12,1996. However, since the time of the staff's closure letter, the Combustion Engineering (CE) Owners Group and the Babcock and Wilcox (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 plants. On March 31,1998, the staff issued a request for additional information (RAI) in regard to the al!oying chemistries of beltline welds, your assessment of surveillance data for your facility, 1 pressure-temperature (P-T) limits, and pressurized thermal shock (PTS) assessment for the 9908190022 990813 PDR ADOCK 05000443 QDh

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I l C l~ T. Feigenbaum Seabrook Station. 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 in 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 assessments for your facility relative to the requirements of 10 CFR 50.60,10 CFR 50.61, and Appendices G and H to 10 CFR Part 50, as applicable to the licensing basis for your plant.

You provided your responses to the staff's RAls for the Seabrook Station on June 24 and October 15,1998, and January 18,1999. As a result of the staff's review cf your responses to GL 92-01, Revision 1; GL 92-01, Rev.1, Supp.1; and the Supp.1 RAls, 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 J/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 I assume that the data entered into the RVID are acceptable for your plant. No additional l information is necessary with regard to the structural integrity assessments. Future submittals on P-T limits, PTS (oniy applicable to PWRs), or upper shelf energy (USE) should reference the most current information.

l This closes the staff's efforts in regard to TAC No MA0571. The staff appreciates your efforts in regard to this matter.

Sincerely.

• 1

(

1 ohn T. Hanison, Project Manager, Section 2 Project Directorate i Division of Licensing Project Managemen:

( Office of Nuclear Reactor Regulation Docket No. 50-443 cc: See next page

,D T. Faigtnb um V Seabrook Station. 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 in 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 assessments for your facility relative to the requirements of 10 CFR 50.60,10 CFR 50.61, and

. Appendices G and H to 10 CFR Part 50, as' applicable to the licensing basis for your plant.

You provided your responses to the staff's RAls for the Seabrook Station on June 24 and October 15,1998, and January 18,1999. 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 RAls, 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 j the NRC home page (http://www.nrc. gov /NRR/RVID/index.html ). We recommend that you -

review this information. . lf 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 j information 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.

.This closes the staff's efforts in regard to TAC No. MA0571. The staff appreciates your efforts l . in regard to this matter.

l l

Sincerely, ORIGINAL SIGNED BY:

l '

John T. Harrison, Project Manager, Section 2 Project Directorate l Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-443 cc: See next page i

plSTRIBUTION:

Docket File E. Adensam(EGA1) T. Clark ACRS PUBLIC - J. Clifford G. Vissing C. Anderson, RI PDI-2 Rdg. J. Harrison OGC A. Lee, EMCB/DE FILENAME:' G:\PDI-2\Seabrook\MPAA0571.wpd OFFICE PM:PDl-2 LA:PDI-2 SC:PDF2 NAME' 'JHarrison M TLClarkh JCibrd DATE P3/\\/99 R/H/99 4 /iM99 OFFICIAL RECORD COPY r

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Seabrook Station, Unit No.1 cc:

1 Lillian M. Cuoco, Esq. Mr. Peter LaPorte, Director

. Senior Nuclear Counsel ATTN: James Muckerheide i Northeast Utilities Service Company Massachusetts Emergency Management- I P.O. Box 270 Agency l Hartford, CT 06141-0270 400 Worcester Road P.O. Box 1496 Mr. Peter Brann Framingham, MA 01701-0317 )

Assistant Attorney General' State House, Station #6 Philip T. McLaughlin, Attorney General Augusta, ME 04333 Steven M. Houran, Deputy Attorney General Resident inspector 33 Capitol Street U.S. Nuclear Regulatory Commission Concord, NH 03301 Seabrook Nuclear Power Station P.O. Box 1149 Mr. Woodbury Fogg, Director  ;

Seabrook, NH 03874 New Hampshire Office of Emergency  !

Management Jane Spector State Office Park South Federal Energy Regulatory Commission 107 Pleasant Street 825 North Capital Street, N.E. Concord, NH 03301 ,

Room 8105 Washington, DC 20426 Mr. Roy E. Hickok Nuclear Training Manager Town of Exeter Seabrook Station 10 Front Street -

North Atlantic Energy Service Corp.

. Exeter, NH 03823 P.O. Box 300 Seabrook, NH 03874 Regional Administrator, Region i U.S. Nuclear Regulatory Commission Mr. James M. Peschei j- 475 Allendale Road Manager of Regulatory Compliance King of Prussia, PA 19406 Seabrook Station North Atlantic Energy Service Corp.

Office of the Attorney General P.O. Box 300 One Ashburton Place Seabrook, NH 03874 20th Floor Boston, MA 02108 .Mr. W. A. DiProfio Station Director Board of Selectmen Seabrook Station Town of Amesbury North Atlantic Energy Service Corporation Town Hall P.O. Box 300 Amesbury, MA 01913 Seabrook, NH 03874 Mr. Dan McEthinney Mr. Frank W. Getman, Jr.

Federal Emergency Management Agency Great Bay Power Corp.

Region I ~ Cocheco Falls Millworks J.W. McCormack P.O. & 100 Main Street, Suite 201 Courthouse Building, Room 401 Dover, NH 03820 Boston, MA 02109

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i 2- 1 Mr. B. D. Kenyon l

President - Nuclear Group ' I Northeast Utilities Service Group

- P.O. Box 128 '

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.Waterford, CT 06385 '

1 Mr. David E. Carriere -

' Director, Production Services l l

Canal Electric Company 2421 Cranberry Highway

- Wareham, MA 02571

• Mr. David A. Lochbaum -

Nuclea rS f ta e y Engineer Union of Concerned Scientists 1616 P Street, NW, Suite 310  ;

- Washington, DC 20036-1495 Mr. Steve' Allen ~

Polestar AppliedTechnology,Inc.

, 77 Franklin Street, Suite 507 l Boston, MA 02110 l

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