ML20205S549

Forwards SE Discussing DPC Response to GL 96-06, Assurance of Equipment Operability & Containment Integrity During Design Basis Accident Conditions. Response Acceptable

ML20205S549
Person / Time
Site:	Catawba
Issue date:	04/21/1999
From:	Tam P NRC (Affiliation Not Assigned)
To:	Gordon Peterson DUKE POWER CO.
Shared Package
ML20205S553	List: ML20205S549 ML20205S555
References
GL-96-06, GL-96-6, TAC-M96794, TAC-M96795, NUDOCS 9904260255
Download: ML20205S549 (4)

Text

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• 1 APR 21 M l- Mr. G. R. Peterson l Site Vice President Catawba Nuclear Station Duke Energy Corporation

. 4800 Concord Road -

York, South Carolina 29745-9635

SUBJECT:

CATAWBA NUCLEAR STATION, UNITS 1 AND 2 - RESPONSE TO GENERIC LETTER 96-06 (TAC M96794 AND M96795)

Dear Mr. Peterson:

Generic Letter 96-06, " Assurance of Equipment Operability and Containment Integrity During Design Basis Accident Conditions," requested each licensee to determine the plant's susceptibility to three phenomena: (1) waterhammer in containment air cooling water systems during accident conditions, (2) two-phase flow in containment air cooling water systems during i accident conditions, and (3) overpressurization of piping systems that penetrate containment due to heat up and expansion of fluid during both normal operation and accident conditions.

Duke Energy Corporation responded by letters dated October 29,1996; January 28,1997; June 24,1998; and December 14,1998. The staff reviewed the submitted information and found that Duke Energy Corporation has acceptably responded to the three issues addressed by GL 96-06. Details are set forth in the enclosed safety evaluation. This completes the staff's

, efforts.

Sincerely,  ;

Orlp om ( s Peter (S. Tam,iorSMl%

$1 Projeet r c(

Manager, Section 1 I///

Project Directorate il Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414 d/

Enclosure:

Safety Evaluation I

cc w/ encl: See next page Distribution:

Docket File CNorsworthy (e-mail)

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• WASHINGTON, D.C. 20555-0001

\...../ April 21,1999 Mr. G. R. Peterson Site Vice President Catawbc Nuclear Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745-9635

SUBJECT:

CATAWBA NUCLEAR STATION, UNITS 1 AND 2 - RESPONSE TO GENERIC l

LETTER 96-06 (TAC M96794 AND M96795)

Dear Mr. Peterson:

Generic Letter 96-06, " Assurance of Equipment Operability and Containment integrity During Design Basis Accident Conditions," requested each licensee to determine the plant's susceptibility to three phenomena: (1) waterhammer in containment air cooling water systems during accident conditions, (2) two-phase flow in containment air cooling water systems during

accident conditions, and (3) overpressurization of piping systems that penetrate containment due te heat up and expansion of fluid during both normal operation and accident conditions.

l Duke Energy Corporation responded by letters dated October 29,1996; January 28,1997; June 24,1998; and December 14,1998. The staff reviewed the submitted information and  ;

found that Duk.e Energy Corporation has acceptably responded to the three issues addressed i by GL 96-06. Details are set forth in the enclosed safety evaluation. This completes the staff's efforts.

Sincerely, S

T .W M

Peter S. Tam, Senior Project Manager, Section 1 Project Directorate ll Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414

Enclosure:

Safety Evaluation cc w/ encl: See next page

f G O 4 Catawba Nuclear Station i

cc:

Mr. Gary Gilbert North Carolina Electric Membership l Regulatory Compliance Manager Corporation Duke Energy Corporation P. O. Box 27306 i 4800 Concord Road Raleigh, North Carolina 27611 York, South Carolina 29745  ;

Senior Resident inspector  !

Ms. Lisa F. Vaughn U.S. Nuclear Regulatory Commission  !

Legal Department (PB05E) 4830 Concord Road Duke Energy Corporation ' York, South Carolina 29745 l 422 South Church Street i Charlotte, North Carolina 28201-1006 Virgil R. Autry, Director Division of Radioactive Waste Management Anne Cottington, Esquire Bureau of Land and Waste Management Winston and Strawn Department of Health and Environmental 1400 L Street, NW Control Washington, DC 20005 2600 Bull Street Columbia, South Carolina 29201-1708 North Carolina Municipal Power Agency Number 1 L. A. Keller 1427 Meadowwood Boulevard Manager - Nuclear Regulatory P. O. Box 29513 Licensing Raleigh, North Carolina 27626 Duke Energy Corporation 526 South Church Street County Manager of York County Charlotte, North Carolina 28201-1006 York County Courthouse York, South Carolina 29745 Saluda River Electric P. O. Box 929 Piedmont Municipal Power Agency Laurens, South Carolina 29360 121 Village Drive Greer, South Carolina 29651 Mr. Steven P. Shaver Senior Sales Engineer Ms. Karen E. Long Westinghouse Electric Company Assistant Attomey General 5929 Carnegie Blvd.

North Carolina Depar; ment of Justice Suite 500 P. O. Box 629 Charlotte, North Carolina 28209 Raleigh, North Carolina 27602 Elaine Wathen, Lead REP Planner Division of Emergency Management 116 West Jones Street Raleigh, North Carolina 27603-1335

r:

c l Catawba Nuclear Station cc:

l Mr. T. Richard Puryear Owners Group (NCEMC)

Duke Energy Corporation -

4800 Concord Road York, South Carolina 29745 Richard M. Fry, Director -

Division of Radiation Protection North Carolina Department of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 l

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