ML050810579

RAI, ECCS and CSS Recirculation Functions Compliancy (TAC No. Mb 9605, MB9606)

ML050810579
Person / Time
Site:	Saint Lucie
Issue date:	03/21/2005
From:	Moroney B NRC/NRR/DLPM/LPD2
To:	Stall J Florida Power & Light Co
Moroney B, NRR/DLPM, 415-3974
References
BL-03-001, TAC MB9605, TAC MB9606
Download: ML050810579 (4)

Text

March 21, 2005 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, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING BULLETIN 2003-01 RESPONSES (TAC NO. MB9605 AND MB9606)

Dear Mr. Stall:

By letter dated August 8, 2003, the Florida Power and Light Company (FPL) provided the 60-day response to the U.S. Nuclear Regulatory Commission (NRC) Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors, for the St. Lucie Plant, Units 1 and 2. The Bulletin requested FPL to either (1) state that the emergency core cooling system (ECCS) and containment spray system (CSS) recirculation functions have been analyzed with respect to the potentially adverse post-accident debris blockage effects identified in the Bulletin and are in compliance with all existing applicable regulatory requirements, or (2) to describe any interim compensatory measures that have been implemented or that will be implemented to reduce the interim risk associated with potentially degraded or nonconforming ECCS and CSS recirculation functions until an evaluation to determine compliance is complete.

The NRC staff has completed its preliminary review of your response and has determined that more information is needed to complete its review. Enclosed is the Request for Additional Information.

This request was discussed with Mr. George Madden of your staff on March 14, 2005, and it was agreed that a response would be provided by May 20, 2005. 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 and 50-389

Enclosure:

As stated cc w/encl: See next page

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, Managing Attorney David Moore, Vice President Florida Power & Light Company Nuclear Operations Support P.O. Box 14000 Florida Power and Light Company Juno Beach, FL 33408-0420 P.O. Box 14000 Juno Beach, FL 33408-0420 Marjan Mashhadi, Senior Attorney Florida Power & Light Company Mr. Rajiv S. Kundalkar 801 Pennsylvania Avenue, NW Vice President - Nuclear Engineering Suite 220 Florida Power & Light Company Washington, DC 20004 P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Douglas Anderson County Administrator Mr. J. Kammel St. Lucie County Radiological Emergency 2300 Virginia Avenue Planning Administrator Fort Pierce, Florida 34982 Department of Public Safety 6000 SE. Tower Drive Mr. William A. Passetti, Chief Stuart, Florida 34997 Department of Health Bureau of Radiation Control 2020 Capital Circle, SE, Bin #C21 Tallahassee, Florida 32399-1741 Mr. William Jefferson, Jr.

Site Vice President St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957-2000

March 21, 2005 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, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING BULLETIN 2003-01 RESPONSES (TAC NO. MB9605 AND MB9606)

Dear Mr. Stall:

By letter dated August 8, 2003, the Florida Power and Light Company (FPL) provided the 60-day response to the U.S. Nuclear Regulatory Commission (NRC) Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized Water Reactors, for the St. Lucie Plant, Units 1 and 2. The Bulletin requested FPL to either (1) state that the emergency core cooling system (ECCS) and containment spray system (CSS) recirculation functions have been analyzed with respect to the potentially adverse post-accident debris blockage effects identified in the Bulletin and are in compliance with all existing applicable regulatory requirements, or (2) to describe any interim compensatory measures that have been implemented or that will be implemented to reduce the interim risk associated with potentially degraded or nonconforming ECCS and CSS recirculation functions until an evaluation to determine compliance is complete.

The NRC staff has completed its preliminary review of your response and has determined that more information is needed to complete its review. Enclosed is the Request for Additional Information.

This request was discussed with Mr. George Madden of your staff on March 14, 2005, and it was agreed that a response would be provided by May 20, 2005. 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 and 50-389

Enclosure:

As stated cc w/encl: See next page DISTRIBUTION:

PUBLIC PDII-2 R/F JArroyo JHannon MKowal OGC MMarshall EBrown DSolorio JMunday, RII ACRS BMoroney AWang LWhitney BClayton (paper copy)

ADAMS Accession No.: ML050810579 NRR-088 OFFICE PDII-1/PE PDII-2/PM PDII-2/LA SPLB/BC LPDII-2/SC NAME JArroyo BMoroney BClayton JHannon by memo MMarshall

DATE 03/ 15 /05 03/ 15 /05 03/ 15 /05 09/ 01/ 04 03/ 21 /05 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION FLORIDA POWER AND LIGHT COMPANY ST. LUCIE NUCLEAR POWER PLANT, UNITS 1 AND 2 DOCKET NUMBERS 50-335 AND 50-389

1. On page 2 of Attachment 1 of your August 8, 2003, Bulletin 2003-01 response you stated that Florida Power and Light Company (FPL) would enhance the applicable EOPs [emergency operating procedures] to provide the operators with more specific indications of sump blockage by utilizing all available instrumentation . . . . However, your response does not discuss any related operator training. Please provide a detailed discussion of the operating procedure changes to be implemented, the indications of sump clogging that the operators are instructed to monitor, and new response actions the operators may be instructed to take in the event of sump clogging and loss of emergency core cooling sytem (ECCS) recirculation capability, if any.

2. On page 2 of Attachment 1 of your August 8, 2003, Bulletin 2003-01 response you stated that FPL would provide informational training to the technical support staff to provide awareness of the significance of the sump clogging issue and proposed compensatory measures to the engineering staff involved in supporting the TSC

[technical support center] and emergency operations facility (EOF). The target date for this activity was the fourth quarter of 2003. Please provide a detailed discussion of the specific proposed sump clogging compensatory measures that have been briefed to the engineering staff for possible implementation during reactor events.

3. On page 3 of Attachment 1 of your Bulletin 2003-01 response you state Any generic changes to the CEN-152 EPGs [Emergency Procedure Guidelines] concerning isolation of an operating ECCS or CSS [containment spray system] train during the injection phase of a LOCA [loss of coolant accident] will be evaluated by formal Owners Group specific maintenance programs. After any generic guidance is approved and issued, St.

Lucie will evaluate incorporating the recommended guidance into plant operating documents and provide the required operator training. The Westinghouse Owner's Group (WOG) has developed operational guidance in response to Bulletin 2003-01 for Westinghouse and CE type pressurized-water reactors (PWRs). Please provide a discussion of your plans to consider implementing this new WOG guidance. Include a discussion of the WOG recommended compensatory measures that have been, or will be, implemented at your plants, and the evaluations or analyses performed to determine which of the WOG recommended changes are acceptable at your plants. Provide technical justification for those WOG recommended compensatory measures not being implemented by your plants. Also include a detailed discussion of the procedures being modified, the operator training being implemented, and your schedule for implementing these compensatory measures.

Enclosure

4. Bulletin 2003-01 provides possible interim compensatory measures licensees could consider to reduce risks associated with sump clogging. In addition to those compensatory measures listed in Bulletin 2003-01, licensees may also consider implementing unique or plant-specific compensatory measures, as applicable. Please discuss any possible unique or plant-specific compensatory measures you considered for implementation at your plants. Include a basis for rejecting any of these additional considered measures. As an example, the staff noted that FPL has implemented a new unique and plant-specific administrative control of each Units refueling water tank level to maximize the volume contained above the Technical Specification minimum limit.