ML20246M049

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Informs of Implementation Schedule for Item 1.b of NRC Bulletin 88-011, Pressurizer Surge Line Thermal Stratification, That Was Mutually Agreed Upon Between NRC & Westinghouse at 890411 Meeting.Util Schedule Not Approved
ML20246M049
Person / Time
Site: Beaver Valley
Issue date: 05/10/1989
From: Tam P
Office of Nuclear Reactor Regulation
To: Sieber J
DUQUESNE LIGHT CO.
References
IEB-88-011, IEB-88-11, TAC-72110, NUDOCS 8905190023
Download: ML20246M049 (2)


Text

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  • May 10, in89 DockehNo.60-334 DISTRIBUTION
Docket File . ACRS(10)

NRC &' local PDRs Plant File Mr. J. D. Sieber, Vice President SVarga Nuclear Group BBoger Duquesne Light Company SNorris Post Office Box 4 PTam Shippingport, Pennsylvania 15077 OGC EJordan

Dear Mr. Sieber:

BGrimes

SUBJECT:

BEAVER VALLEY UNIT 1 - SCHEDULAR RELIEF REQUEST RELATED TO NRC j BULLETIN 88-11. " PRESSURIZER SURGE LINE THERMAL STRATIFICATION,"

ITEM 1.b (TAC NO. 72110)

The purpose of this letter is to inform you of the implementation schedule for Item 1.b of NRC Bulletin 88-11, " Pressurizer Surge Line Thermal Stratifi-cation," that was mutually agreed upon between the NRC staff and the Westinghouse Owners Group (WOG) during an April 11, 1989 meeting, r

By letter dated March 1,1989 you proposed an alternate schedule for the completion of the bounding analysis required by Item 1.b of NRC Bulletin 88-11 regarding the design adequacy of the pressurizer surge line, taking into l account the effects of thermal stratification. Your proposed schedule for completion (2 years from the date of the Bulletin) was consistent with the alternate schedule proposed by the WOG program.

During the April 11, 1989 meeting, the staff stated that the alternate schedule as originally proposed by the WOG was unacceptable. Based upon additional discussion, the WOG agreed to notify membership that licensees of plants in operation over 10 years (e.g., Beaver Valley Unit 1) should, by the end of May 1989, complete and have available for NRC audit their bounding analysis as related to item 1.b of the Bulletin, and submit to the NRC a justification for continued operation (JCO) in the event the results of the bounding analysis do not confirm the adequacy of the pressurizer surge line for the design life of the plant. This schedule is acceptable. It is our understanding that the WOG will provide you with a " generic" analysis, to which your plant-specific variables (e.g., seismic and thermal loadings) will need to be added and incorporated. Your analysis should assess all aspects of thermal stratification and thermal striping, including bounding evaluations on stresses and fatigue, based on currently available information.

Based upon your participation in the WOG program regarding this issue, and absent any other justification, your proposed alternate schedule of completing Item 1.b is not anproved. We expect that your efforts will be accelerated to meet the completion date as committed by the WOG.

Sincerely, 8905190023 890510 PDR ADOCK 05000334 Peter . Tam, Senior Project Manager O PDC Project Directorate I-4 Division of Reactor Projects I/II g

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l Mr. J. Sieber Beaver Valley Power Station Duquesne Light Company Units 1 & 2 cc:

Jay E. Silberg, Esquire Bureau of Radiation Protection Shaw, Pittman, Potts and Trowbridge Pennsylvania Department of i 2300 N Street, N.W. Environmental Resources Washington, DC 20037 ATTN: R. Janati  !

Post Office Box 2063 Kenny Grada, Manager Harrisburg, Pennsylvania 17120 Nuclear Safety Duquesne Light Company Mayor of the Borrough of P. O. Box 4 Shippingport Shippingport, Pennsylvania 15077 Post Office Box 3 Shippingport, Pennsylvania 15077

' John A. Lee, Esquire Ashley C. Schannauer Duquesne Light Company Assistant City Solicitor

  • One Oxford Centre City of Pittsburgh 301 Grant Street 313 City-County Building Pittsburgh, Pennsylvania 15279 Pittsburgh, Pennsylvania 15219 W.F. Carmichael, Commissioner Regional Administrator, Region I Department of Labor U.S. Nuclear Regulatory Commission 1800 Washington Street East 475 Allendale Road Charleston, West Virginia 25305 King of Prussia, Pennsylvania 19406 John D. Borrows Resident Inspector Director,' Utilities Department U.S. Nuclear Regulatory Commission Public Utilities Commission Post Office Box 181 180 East Broad Street Shippingport, Pennsylvania 15077 Columbus, Ohio 43266-0573 Director, Pennsylvania Emergency Management Agency Post Office Box 3321 Harrisburg, Pennsylvania 17105-3321 l

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