ML033580002

St. Lucie Plant, Unit 1 - Second Request for Additional Information Regarding Relief Request No. 19

ML033580002
Person / Time
Site:	Saint Lucie
Issue date:	12/23/2003
From:	Moroney B NRC/NRR/DLPM/LPD2
To:	Stall J Florida Power & Light Co
Moroney B, NRR/DLPM, 415-3974
References
TAC MC0244
Download: ML033580002 (6)

Text

December 23, 2003 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:

SAINT LUCIE PLANT, UNIT 1 - SECOND REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST NO. 19 (TAC NO. MC0244)

Dear Mr. Stall:

By letter dated July 30, 2003, Florida Power and Light Company (FPL) submitted Relief Request No. 19 for St. Lucie Unit 1 to change to a risk-informed Inservice Inspection program.

On December 4, 2003, FPL provided a response to a Request for Additional Information (RAI) from the U.S. Nuclear Regulatory Commission (NRC) staff.

The NRC staff has reviewed your submittal and the RAI response and finds that the additional information described in the enclosed RAI is needed before we can complete the review. This request was discussed with Mr. Terry Patterson of your staff on December 22, 2003, and he indicated that a response would be provided by January 15, 2004.

If you have any questions, please feel free to contact me at (301) 415-3974.

Sincerely,

/RA/

Brendan T. Moroney, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-335

Enclosure:

RAI cc w/encl: See next page

ML033580002 OFFICE PDII-2/PM PDII-2/LA PDII-2/SC NAME BMoroney BClayton AHowe DATE 12/22/03 12/22/03 12/23/03 REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST NO. 19 RISK-INFORMED INSERVICE INSPECTION PROGRAM FLORIDA POWER AND LIGHT COMPANY ST. LUCIE PLANT, UNIT 1 DOCKET NO. 50-335 St. Lucie, Unit 1, risk-informed inservice inspection methodology includes deviations from the underlying methodology in WCAP-14572, Revision 1-NP-A, topical report. St. Lucie chose to select 25 percent of the welds in the high-safety-significant (HSS) segments for inspection instead of using the WCAPs methodology.

Based on the July 30, 2003, submittal and the December 4, 2003, Request for Additional Information response, the Nuclear Regulatory Commission staff cannot determine how many, if any, welds in Unit 1's HSS segments would be placed in WCAP Region 1A. Therefore, we cannot compare your results with those that would be obtained using the WCAP method.

Please provide the following additional information.

1. How many butt welds are in St. Lucie Unit 1's HSS segments that are exposed to active degradation mechanisms and would be placed in WCAP Region 1A? How many socket welds?

2. Section 3.8 (page 17) of your submittal states that 31.5 percent of the total population of elements in HSS segments are inspected. Table 5-1 states that 24 locations have volumetric inspections. These two statements imply that there are about 76 HSS butt welds. However, Table 5-1 implies that there are 177 butt welds in WCAPs SES matrix Region 1 or 2 (i.e., HSS). How many total butt welds are in the HSS segments? How many socket welds?

ENCLOSURE

Mr. J. A. Stall ST. LUCIE PLANT Florida Power and Light Company cc:

Senior Resident Inspector Mr. G. L. Johnston 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. Terry Patterson 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 Vice President, Nuclear Operations Support Florida Power & Light Company Florida Power & Light Company P.O. Box 14000 P.O. Box 14000 Juno Beach, FL 33408-0420 Juno Beach, FL 33408-0420 Mr. Douglas Anderson Mr. Rajiv S. Kundalkar County Administrator Vice President - Nuclear Engineering St. Lucie County Florida Power & Light Company 2300 Virginia Avenue P.O. Box 14000 Fort Pierce, Florida 34982 Juno Beach, FL 33408-0420 Mr. William A. Passetti, Chief Mr. J. Kammel Department of Health Radiological Emergency Bureau of Radiation Control Planning Administrator 2020 Capital Circle, SE, Bin #C21 Department of Public Safety Tallahassee, Florida 32399-1741 6000 SE. Tower Drive Stuart, Florida 34997 Mr. William Jefferson, Jr.

Site Vice President St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957