ML20216H929

Informs That Licensee Responses to GL 97-06, Degradation of Steam Generator Internals Acceptable & Did Not Identify Any New Concerns with Condition of SG Intervals at Plant

ML20216H929
Person / Time
Site:	Wolf Creek
Issue date:	09/29/1999
From:	Donohew J NRC (Affiliation Not Assigned)
To:	Maynard O WOLF CREEK NUCLEAR OPERATING CORP.
References
GL-97-06, TAC-MA0962, NUDOCS 9910040113
Download: ML20216H929 (3)

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UNITED STATES s- -

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20086-0001 4

September 29, 1999 Mr. Otto L. Maynard President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation Post Office Box 411 Burlington, KA 66839

SUBJECT:

WOLF CREEK GENERATING STATION - CL'OSEOUT OF GENERIC LETTER 97-06, " DEGRADATION OF STEAM GENERATOR INTERNALS"(TAC NO.

MA0962)

Dear Mr. Maynard:

On December 30,1997, the staff issued Generic Letter (GL) 97-06," Degradation of Steam Generator Internals." The purpose of the GL was to alert licensees of pressurized water reactors (PWRs) to damage to steam generator internals at foreign and U.S. PWRs, and obtain information that would enable the staff to verify that the condition of licensees' steam generator internals comply with the current licensing bases for their respective facilities.

By letter dated March 27,1998, (ET 98-0022), you responded to GL-97-06 for Wolf Creek

. Generating Station (WCGS). In that letter, you provided a discussion of the program to detect degradation of steam generator internals at WCGS and referenced the Westinghouse report WCAP-15002, Revision 1, " Evaluation of EdF Steam Generators Internals Degradation - Impact of Causal Factors on Westinghouse 51 Series Steam Generators," dated December 1997. You provided a description of the program inspections performed and the inspection summary for the steam generators at WCGS. You also stated that WCGS has Westinghouse Model F steam generators and an evaluation for this model, similar to that done in WCAP-15002, would be completed at a later date. During a conference call on September 22,1999, it was stated that this later report had been completed. The letter provided the basis that the steam generators at WCGS comply with the current licensing bases for the plant.

The staffi review of your response did not identify any new concerns with the condition of the b-steam generator internals at WCGS and did not identify any concerns with the inspection practices employed at WCGS to detect degradation of steam generator internals. The staff,  !

) therefore, concludes that your response to the GL provides reasonable assurance that the -

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condition of your steam generator internals are in compliance with the current licensing bases j for WCGS.

The detailed technical basis that supports the staff's determination for all facilities will be published in a NUREG report to be published in December 1999. This completes the staff's Q

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SC FU CMTB G8P 9910040113 990929 "

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Mr. Otto L. Maynard September 29, 1999 If you have any questions regarding this matter, please contact me at 301-415-1307 or through the internet at jnd@nrc. gov.

Sincerely,

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f\ Jac N. Donohew, Senior Project Manager, Section 2 Project Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-482 cc: See next page DISTRIBUTION Docket File PUBLIC PDIV-2 Reading SRichards ESullivan (EMCB Memo dated 09/16/99)

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OGC ACRS BJohnson, RIV To receive a copy of this document, indicate "c" in the box OFFICE PDl%2/p C PDIV-2/LA C PDIV-2/SC NAME JD M EP6 M SDembek ,/ b DATE 9 / Il /99 9 /Q7 /99 9 CE/9I' DOCUMENT NAME: G:\PDIV-2\WolfCreek\MA0962-GL97-06.wpd OFFICIAL RECORD COPY

l Wolf Creek Generating Station

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i cc:

Jay Silberg, Esq. Vice President & Chief Operating Officer

Shaw, Pittman, Potts & Trowbridge - Wolf Creek Nuclear Operating Corporation l 2300 N Street, NW P. O. Box 411 l Wash'ington, D.C. 20037 Burlington, Kansas 66839 l

l- Regional Administrator, Region IV Superintendent Licensing U.S. Nuclear Regulatory Commission Wolf Creek Nuclear Operating Corporation 1 l 611 Ryan Plaza Drive, Suite 1000 P.O. Box 411 Arlington, Texas 76011 Burlington, Kansas 6683g Senior Resident inspector U.S. Nuclear Reguhtory Commission i U.S. Nuclear Regulatory Commission Resident inspectors Office P. O. Box 311 8201 NRC Road Burlington, Kansas 66839 Steedman, Missouri 65077-1032 l Chief Engineer Utilities Division ,

Kansas Corporation Commission j 1500 SW Arrowhead Road )

Topeka, Kansas 6 6 4027 Office of the Governor State of Kansas Topeka, Kansas 60,d42 Attorney General Judicial Center 301 S.W.10th 2nd Floor Topeka, Kansas 66612 County Clerk Coffey County Courthouse Burlington, Kwnsas 66839 Vick L. Cooper, Chief Radiation Control Program Kansas Department of Health and Environment Bureau of Air and Radiation Forbes Field Building 283 Topeka, Kansas 66620 i

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