ML050040459

Request for Amendments

ML050040459
Person / Time
Site:	Dresden, Quad Cities
Issue date:	02/07/2005
From:	Banerjee M NRC/NRR/DLPM/LPD3
To:	Crane C Exelon Generation Co
Banerjee M, NRR/DLPM, 415-2277
References
TAC MC5160, TAC MC5161, TAC MC5162, TAC MC5163
Download: ML050040459 (6)

Text

February 7, 2005 Mr. Christopher M. Crane, President and Chief Nuclear Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3, AND QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2 - REQUEST FOR AMENDMENTS (TAC NOS. MC5160, MC5161, MC5162 AND MC5163)

Dear Mr. Crane:

Exelon Generation Company, LLC (EGC) submitted an amendment request that proposed to revise the pressure and temperature limit curves for 54 effective full-power years to support the 20 year license extension for both Dresden Nuclear Power Station, Units 2 and 3, and Quad Cities Nuclear Power Station, Units 1 and 2. Our review in the area of neutron fluence generated a question. This question, contained in the enclosed request for additional information (RAI), was provided to your staff via electronic mail on December 23, 2004. On January 12, 2005, the NRC staff held a conference call with your staff to discuss the RAI.

Our review in the area of reactor pressure vessel material performance is ongoing. We will let you know if this review generates any additional RAI.

Should your staff have any questions, please let me know. I can be reached at 301-415-2277 or by e-mail: mxb@nrc.gov.

Sincerely,

/RA/

Maitri Banerjee, Project Manager, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-237, 50-249, 50-254, and 50-265

Enclosure:

As stated cc w/encls: See next page

February 7, 2005 Mr. Christopher M. Crane, President and Chief Nuclear Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3, AND QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2 - REQUEST FOR AMENDMENTS (TAC NOS. MC5160, MC5161, MC5162 AND MC5163)

Dear Mr. Crane:

Exelon Generation Company, LLC (EGC) submitted an amendment request that proposed to revise the pressure and temperature limit curves for 54 effective full-power years to support the 20 year license extension for both Dresden Nuclear Power Station, Units 2 and 3, and Quad Cities Nuclear Power Station, Units 1 and 2. Our review in the area of neutron fluence generated a question. This question, contained in the enclosed request for additional information (RAI), was provided to your staff via electronic mail on December 23, 2004. On January 12, 2005, the NRC staff held a conference call with your staff to discuss the RAI.

Our review in the area of reactor pressure vessel material performance is ongoing. We will let you know if this review generates any additional RAI.

Should your staff have any questions, please let me know. I can be reached at 301-415-2277 or by e-mail: mxb@nrc.gov.

Sincerely,

/RA/

Maitri Banerjee, Project Manager, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-237, 50-249, 50-254, and 50-265

Enclosure:

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

PUBLIC LLois LRossbach MRing, RIII PD3-2 R/F DCoe MBanerjee OGC GSuh WRuland PCoates ACRS DLPM DPR ADAMS Accession Number: ML050040459 OFFICE PM:LPD3-2 LA:LPD3-2 SC:SRXB SC:LPD3-2 NAME MBanerjee PCoates DCoe GSuh DATE 02/03/05 02/3/05 02/3/05 02/3/05 OFFICIAL RECORD COPY

DRESDEN UNITS 2 AND 3 AND QUAD CITIES UNITS 1 AND 2 REQUEST FOR ADDITIONAL INFORMATION - PRESSURE AND TEMPERATURE LIMIT CURVES FOR 54 EFFECTIVE FULL-POWER YEARS Please provide answers to the following question:

The Dresden Nuclear Power Station (Dresden) and Quad Cities Nuclear Power Station (Quad Cities) submittals do not contain information regarding how the fluence is calculated. The application states that an approved methodology has been used. To ensure that an approved methodology has been correctly applied, please respond to the following first bullet.

Alternatively, respond to the second bullet if Reference 14a in the reports attached to the application contains the requested information:

! The Dresden and Quad Cities submittals state that the vessel fluence values were obtained using an U.S. Nuclear Regulatory Commission (NRC) approved methodology but do not indicate how the methodology was implemented. Please provide: the assumptions used for the calculation of the neutron sources, the transport approximations, and any validation to plant specific dosimetry measurements.

! The Dresden and Quad Cities submittals state that the vessel fluence values were obtained using an NRC-approved methodology but do not indicate how the methodology was implemented. Please provide Reference 14a (from attached reports) i.e.

GE-NE-0000-0011-0531-R0 for Dresden and GE-NE-0000-0011-0531-R2 for Quad Cities.

ENCLOSURE

Dresden and Quad Cities Nuclear Power Stations cc:

Site Vice President - Dresden Nuclear Power Station Vice President of Operations - Mid-West Exelon Generation Company, LLC Boiling Water Reactors 6500 N. Dresden Road Exelon Generation Company, LLC Morris, IL 60450-9765 4300 Winfield Road Warrenville, IL 60555 Dresden Nuclear Power Station Plant Manager Exelon Generation Company, LLC Vice President - Licensing and Regulatory 6500 N. Dresden Road Affairs Morris, IL 60450-9765 Exelon Generation Company, LLC 4300 Winfield Road Regulatory Assurance Manager - Dresden Warrenville, IL 60555 Exelon Generation Company, LLC 6500 N. Dresden Road Director - Licensing and Regulatory Morris, IL 60450-9765 Affairs Exelon Generation Company, LLC U.S. Nuclear Regulatory Commission 4300 Winfield Road Dresden Resident Inspectors Office Warrenville, IL 60555 6500 N. Dresden Road Morris, IL 60450-9766 Associate General Counsel Exelon Generation Company, LLC Chairman 4300 Winfield Road Grundy County Board Warrenville, IL 60555 Administration Building 1320 Union Street Manager Licensing - Dresden, Morris, IL 60450 Quad Cities and Clinton Exelon Generation Company, LLC Regional Administrator 4300 Winfield Road U.S. NRC, Region III Warrenville, IL 60555 801 Warrenville Road Lisle, IL 60532-4351 Site Vice President - Quad Cities Nuclear Power Station Illinois Emergency Management Exelon Generation Company, LLC Agency 22710 206th Avenue N.

Division of Disaster Assistance & Cordova, IL 61242-9740 Preparedness 110 East Adams Street Quad Cities Nuclear Power Station Springfield, IL 62701-1109 Plant Manager Exelon Generation Company, LLC Document Control Desk - Licensing 22710 206th Avenue N.

Exelon Generation Company, LLC Cordova, IL 61242-9740 4300 Winfield Road Warrenville, IL 60555 Senior Vice President - Nuclear Services Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555

Dresden and Quad Cities Nuclear Power Stations cc:

Regulatory Assurance Manager - Quad Cities Exelon Generation Company, LLC 22710 206th Avenue N.

Cordova, IL 61242-9740 Quad Cities Resident Inspectors Office U.S. Nuclear Regulatory Commission 22712 206th Avenue N.

Cordova, IL 61242 David C. Tubbs MidAmerican Energy Company One River Center Place 106 E. Second, P.O. Box 4350 Davenport, IA 52808-4350 Vice President - Law and Regulatory Affairs MidAmerican Energy Company One River Center Place 106 E. Second Street P.O. Box 4350 Davenport, IA 52808 Chairman Rock Island County Board of Supervisors 1504 3rd Avenue Rock Island County Office Bldg.

Rock Island, IL 61201