ML023040608

Request for Additional Information Regarding Core Operating Limits Report

ML023040608
Person / Time
Site:	Saint Lucie
Issue date:	10/31/2002
From:	Moroney B NRC/NRR/DLPM/LPD2
To:	Stall J Florida Power & Light Co
Brown E, NRR/DLPM, 415-2315
References
TAC MB5178
Download: ML023040608 (5)

Text

October 31, 2002 Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420

SUBJECT:

ST. LUCIE PLANT, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING CORE OPERATING LIMITS REPORT (TAC NO. MB5178)

Dear Mr. Stall:

By letter dated May 22, 2002, Florida Power and Light Company submitted a request to revise Technical Specification (TS) Section 6.9.1.11.b, Core Operating Limits Report to add two topical reports to the list of approved Core Operating Limits Report methodologies and to delete several superseded topical reports. It also proposed to revise the method for referencing topical reports in the TS.

The U.S. Nuclear Regulatory Commission staff has reviewed your submittal and finds that a response to the enclosed request for additional information is needed before we can complete the review. This request was discussed with your staff on October 24, 2002. On October 30, 2002, Mr. George Madden of your staff agreed that a response would be provided by December 9, 2002.

If you have any questions, please feel free to contact Eva Brown at (301) 415-2315.

Sincerely,

/RA/

Brendan T. Moroney, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-335

Enclosure:

As stated cc w/encl: See next page

ML023040608 OFFICE PDII-2/PM PDII-2/PM PDII-2/LA SRXB/SC PDII-2/SC NAME BMoroney EBrown BClayton FAstulewicz AHowe DATE 10/31/02 10/31/02 10/31/02 10/31/02 10/31/02 Mr. J. A. Stall ST. LUCIE PLANT Florida Power and Light Company cc:

Senior Resident Inspector Mr. R. E. Rose St. Lucie Plant Plant General Manager U.S. Nuclear Regulatory Commission St. Lucie Nuclear Plant P.O. Box 6090 6351 South Ocean Drive Jensen Beach, Florida 34957 Jensen Beach, Florida 34957 Craig Fugate, Director Mr. Kelly Korth Division of Emergency Preparedness Licensing Manager Department of Community Affairs St. Lucie Nuclear Plant 2740 Centerview Drive 6351 South Ocean Drive Tallahassee, Florida 32399-2100 Jensen Beach, Florida 34957 M. S. Ross, Attorney Mr. Don Mothena Florida Power & Light Company Manager, Nuclear Plant Support Services P.O. Box 14000 Florida Power & Light Company Juno Beach, FL 33408-0420 P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Douglas Anderson County Administrator Mr. Rajiv S. Kundalkar St. Lucie County Vice President - Nuclear Engineering 2300 Virginia Avenue Florida Power & Light Company Fort Pierce, Florida 34982 P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. William A. Passetti, Chief Department of Health Mr. J. Kammel Bureau of Radiation Control Radiological Emergency 2020 Capital Circle, SE, Bin #C21 Planning Administrator Tallahassee, Florida 32399-1741 Department of Public Safety 6000 SE. Tower Drive Mr. Donald E. Jernigan, Site Vice President Stuart, Florida 34997 St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957

REQUEST FOR ADDITIONAL INFORMATION (RAI)

CORE LIMITS OPERATING REPORT (COLR) REPORT UPDATE FLORIDA POWER AND LIGHT (FPL)

ST. LUCIE UNIT 1, DOCKET NO. 50-335

1. The NRCs safety evaluation of Topical Report EMF-2328(P)(A), Revision 0, "PWR Small Break LOCA Evaluation Model, S-RELAP5 Based" states a condition on the use of ANF-RELAP code that still applies to the use of S-RELAP5. The statement is:

"That while it has been shown in Reference 53 [Loomis, G.G., "Summary of the Semiscale Program (1965-1986)," NUREG/CR-4945, July 1987] that the thermal-hydraulic phenomena observed for breaks up to 10 percent of the cold leg flow area are the same, if the code is used for break sizes larger than 10 percent of the cold leg flow area additional assessments must be performed to ensure that the code is predicting the important phenomena which may occur."

FPLs submittal did not state the break size range intended to be used with the code.

Provide information which states what break size range is intended to be used with the code, and whether the code will be used for breaks larger than 10 percent of the cold leg flow area, also provide the required additional assessments.

2. The NRC's safety evaluation of Topical Report EMF-2310(P)(A), Revision 0, "SRP Chapter 15 Non-LOCA Methodology for Pressurized Water Reactors" states in Section 5.0 "Evaluation of S-RELAP5:"

"The staff notes, however, that a generic topical report describing a code such as S-RELAP5 cannot provide full justification for each specific individual plant application. The individual applicant must still provide justification for the specific application of the code which is expected to include as a minimum, the nodalization, defense of the chosen parameters, any needed sensitivity studies, justification of the conservative nature of the input parameters, and calculated results."

Provide justification for the specific application of the code including the elements listed above.

Enclosure

PD II-2 DOCUMENT COVER PAGE DOCUMENT NAME: C:\ORPCheckout\FileNET\ML023040608.wpd

SUBJECT:

St. Lucie Request for Additional Information Concerning COLR Update ORIGINATOR: E. Brown SECRETARY:

DATE: November 1, 2002 TIME SENSITIVE DATE: (If Applies)

 ROUTING LIST 

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1. E. Brown 11/ /02

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3. F. Akstulewicz 11/ /02

4. A. Howe 11/ /02

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