ML062300114

NRC Receipt of the EGC Response to GL 2006-03, Potentially Nonconforming Hemyc and Mt Fire Barrier Configurations

ML062300114
Person / Time
Site:	LaSalle
Issue date:	09/18/2006
From:	Sands S NRC/NRR/ADRO/DORL/LPLIII-2
To:	Crane C Exelon Generation Co
Sands S,NRR/DORL, 415-3154
References
GL-06-003, TAC MD1592, TAC MD1593
Download: ML062300114 (4)

Text

September 18, 2006 Mr. Christopher M. Crane, President and Chief Nuclear Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

NRC RECEIPT OF EXELON GENERATION COMPANY, LLCS RESPONSE TO GENERIC LETTER 2006-03, POTENTIALLY NONCONFORMING HEMYC AND MT FIRE BARRIER CONFIGURATIONS (TAC NOS. MD1592 AND MD1593)

Dear Mr. Crane:

The Nuclear Regulatory Commission (NRC) acknowledges the receipt of your response to Generic Letter 2006-03, Potentially Nonconforming Hemyc and MT Fire Barrier Configurations. Under oath or affirmation, you stated that LaSalle County Station, Units 1 and 2, do not rely on either the Hemyc or MT fire barrier system. You submitted documentation under oath or affirmation that other 1-or 3-hour fire barriers that separate redundant safe shutdown trains located within the same fire area have been designed and installed in accordance with current NRC guidance. Based on your response, the basis for stating that this other fire barrier has been designed and installed in accordance with NRC guidance should be maintained on site, and will be subject to inspection during the normal NRC inspection process.

If you have any questions regarding this response, please contact me at (301) 415-3154.

Sincerely,

/RA/

Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374 cc: See next page

September 18, 2006 Mr. Christopher M. Crane, President and Chief Nuclear Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

NRC RECEIPT OF EXELON GENERATION COMPANY, LLCS RESPONSE TO GENERIC LETTER 2006-03, POTENTIALLY NONCONFORMING HEMYC AND MT FIRE BARRIER CONFIGURATIONS (TAC NOS. MD1592 AND MD1593)

Dear Mr. Crane:

The Nuclear Regulatory Commission (NRC) acknowledges the receipt of your response to Generic Letter 2006-03, Potentially Nonconforming Hemyc and MT Fire Barrier Configurations. Under oath or affirmation, you stated that LaSalle County Station, Units 1 and 2, do not rely on either the Hemyc or MT fire barrier system. You submitted documentation under oath or affirmation that other 1-or 3-hour fire barriers that separate redundant safe shutdown trains located within the same fire area have been designed and installed in accordance with current NRC guidance. Based on your response, the basis for stating that this other fire barrier has been designed and installed in accordance with NRC guidance should be maintained on site, and will be subject to inspection during the normal NRC inspection process.

If you have any questions regarding this response, please contact me at (301) 415-3154.

Sincerely,

/RA/

Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374 cc: See next page DISTRIBUTION:

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LaSalle County Station, Units 1 and 2 cc:

Site Vice President - LaSalle County Station Exelon Generation Company, LLC Robert Cushing, Chief, Public Utilities Division 2601 North 21st Road Illinois Attorney General's Office Marseilles, IL 61341-9757 100 W. Randolph Street Chicago, IL 60601 Plant Manager - LaSalle County Station Exelon Generation Company, LLC Regional Administrator 2601 North 21st Road U.S. NRC, Region III Marseilles, IL 61341-9757 801 Warrenville Road Lisle, IL 60532-4351 Manager Regulatory Assurance - LaSalle Exelon Generation Company, LLC Illinois Emergency Management 2601 North 21st Road Agency Marseilles, IL 61341-9757 Division of Disaster Assistance &

Preparedness U.S. Nuclear Regulatory Commission 110 East Adams Street LaSalle Resident Inspectors Office Springfield, IL 62701-1109 2605 North 21st Road Marseilles, IL 61341-9756 Document Control Desk - Licensing Exelon Generation Company, LLC Phillip P. Steptoe, Esquire 4300 Winfield Road Sidley and Austin Warrenville, IL 60555 One First National Plaza Chicago, IL 60603 Senior Vice President -Operations Support Exelon Generation Company, LLC Assistant Attorney General 4300 Winfield Road 100 W. Randolph St. Suite 12 Warrenville, IL 60555 Chicago, IL 60601 Director - Licensing and Regulatory Affairs Chairman Exelon Generation Company, LLC LaSalle County Board 4300 Winfield Road 707 Etna Road Warrenville, IL 60555 Ottawa, IL 61350 Vice President - Regulatory & Legal Affairs Attorney General Exelon Generation Company, LLC 500 S. Second Street 4300 Winfield Road Springfield, IL 62701 Warrenville, IL 60555 Chairman Assistant General Counsel Illinois Commerce Commission Exelon Generation Company, LLC 527 E. Capitol Avenue, Leland Building 200 Exelon Way Springfield, IL 62706 Kennett Square, PA 19348

LaSalle County Station, Units 1 and 2 cc:

Manager Licensing - LaSalle Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Senior Vice President - Midwest Operations Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555