ML20023D724

Board Notification 83-21C:forwards Evaluation of Board Notification BN-83-21 Re Effectiveness of Auxiliary Feedwater Spray Potentially Significant W/Respect to Achieving & Maintaining Natural Circulation in B&W Reactors

ML20023D724
Person / Time
Site:	Midland
Issue date:	05/24/1983
From:	Novak T Office of Nuclear Reactor Regulation
To:	Atomic Safety and Licensing Board Panel
References
TASK-AS, TASK-BN83-021, TASK-BN83-21 BN-83-021, BN-83-21, NUDOCS 8306020611
Download: ML20023D724 (3)

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DISTRIBUTION May 24, 1983 Docket File 250-329, 50-330 $

NRC PDR PRC System Attorney, OELD L PDR EGoodwin Docket Mos. 50-329 EAdensam and 50-330 DHood MDuncan SBlack DEisenhut/RPurple HEMOPANDUM FOR:

The Atenic Safety and Licensing Board for the Micland Plant, Units 1 and 2 FROM:

Thomas H. IJovak, Assistant Director for Licensing Division of Licensing

SUBJECT:

FOLLOWUP EVALUATION AND P.ESOLUTION TO BOARD kOTIFICATION Bn-83-21 (BM-83-21C)

_On February 18, 1983, the HRC staff issued Board Notification EH-83-21. That notification identified infornation on the effectiveness of auxiliary feedwater spray that was potentially significant with respect to achievirt; and maintaining natural circulation in S&W designed reactors. The notification also r,tated the inportance of operating procedures and operator training in assuring that a sufficient condensing surface is established in the steam generators under all design basis conditions.

The NRC has subsequently conpleted an evaluation of this concern, first for Three Nile Island Unit One and then for all other B&W designed plants. Our evaulation is enclosed and concludes that the information does not thersely affect the ability of these plants to achieve and maintain decay heat renoval by netural circulation through the stean generators under transient and accident conditions. The staff also finds that procedures for loss-of-coolant and natural circulation provide reasonable assurance that the operators will increase stean generator levels to 95 percent of the operating range under conditions for which it is necessary to establish natural ciretalation.

Accordingly, the potential concern expressed by Board Motification DN-83-21 is considered resolved.

Original signed by:

Thomas M. Novak Thomas M. Novak, Assistant Director 8306020611 830524 for Licensing PDR ADOCK 05000329 Division of Licensing A

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Enclosure:

As stated cc w/ enclosures: Bo,ard/ Licensee Service List DL'&

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MIDLAND (ForBNs)

Mr. J. W. Cook Vice President Consumers Power Company 1945 West Parnall Road Jackson, Michigan 49201 cc: Stewart H. Freeman James G. Keppler, Regional Administrator Assistant Attorney General U.S. Nuclear Regulatory Canmission, State of Michigan Enviornmental Region III Protection Division 799 Roosevelt Road 720 Law Building Glen Ellyn, Illinois 60137 Lansing, Michigan 48913 Mr. Ron Callen Mr. Roger W. Huston Michigan Public Service Canmission Suite 226 6545 Mercantile Way 7910 Woodmont Avenue P.O. Box 30221 Bethesda, Maryland 20814 Lansing, Michigan 48909 Mr. R. B. Borsum Mr. Paul Rau Nuclear Power Generation Division Midland Daily News Babcock & Wilcox 124 Mcdonald Street 7910 Woodmont Avenue, Suite 220 Midland, Michigan 48640 Bethesda, Maryland 20814 Billie Pirner Garde Mr. Don van Farrowe, Chief Director, Citizens Clinic Division of Radiological Health for Accountable Government Department of Public Health Government Accountability Project P.O. boa 33035 Institute for Policy Studies Lansing, Michigan 48909 1901 Que Street, N.W.

Washington, D. C.

20009 U.S. Nucisar Regulatory Commission Resi. dent Inspectors Office Commander, Naval Surface Weapons Center Route 7 ATTN: P. C. Huang Midland, Michigan 48640 White Oak Silver Spring, Maryland 20910 Mr. Paul A. Perry, Secretary Consumers Power Company Mr.1. J. Auge, Manager 212 W. Michigan Avenue Facility Design Engineering Jackson, Michigan 49201 Energy Technology Engineering Center P.O. Box 1449 Mr. Walt Apley Canoga Park, Cali fornia 91304 c/o Mr. Max Clausen Battelle Pacific North West Labs (PNWL)

Mr. Neil Gehring Battelle Blvd.

U.S. Corps of Engineers c

SIGMA IV Building NCEED - T Richland, Washington 99352 7th Floor 477 Michigan Avenue Mr. I. Charak, Manager Detroit, Michigan 48226 NRC Assistance Project Argonne National Laboratory Geotechnical Engineers, Inc.

9700 South Cass Avenue ATTN: Dr. Steve J. Poulos Argonne, Illinois 60439 1017 Main Street Winchester, Massachusetts 01890 f

DISTRIBUTION LIST FOR BOARD NOTIFICATION Midland Units 1&2, Docket Nos. 50-329/330 ACRS Members Charles Bechhoefer, Esq.

Dr. Robert C. Axtmann Ms. Lynne Bernabei Mr. Myer Bender James E. Brunner, Esq.

Dr. Max W. Carbon Dr. John H. Buck Mr. Jesse C. Ebersole Myron M. Cherry, P.C.

Mr. Harold Etherington Dr. Frederick P. Cowan Dr. William Kerr T. J. Creswell Dr. Harold W. Lewis Steve J. Galder, P.E.

Dr. J. Carson Mark Dr. Jerry Harbour Mr. William M. Mathis Mr. Wayne Hearn Dr. Dade W. Moeller Mr. James R. Kates Dr. Milton S. Plesset Frank J. Kelley, Esq.

Mr. Jeremiah J. Ray Christine N. Kohl, Esq.

Dr. David Okrent Mr. Wendell H. Marshall Dr. Paul C. Shewmon Michael I. Miller, Esq.

Dr. Chester P. Siess Thomas S. Moore, Esq.

Mr. David A. Ward Mr. Paul Rau Ms. Mary Sinclair Ms. Barbara Stamiris Frederick C. Williams, Esq.

Atomic Safety and Licensing-Board Panel Atomic Safety and Licensing Appeal Panel Docketing and Service Section Document Management Branch e

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