ML040820817
| ML040820817 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/06/2004 |
| From: | Anthony Mendiola NRC/NRR/DLPM/LPD3 |
| To: | Crane C Exelon Generation Co |
| Macon W, NRR/DLPM,415-3965 | |
| References | |
| TAC MC2367 | |
| Download: ML040820817 (5) | |
Text
April 6, 2004 Mr. Christopher M. Crane, President and Chief Nuclear Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LASALLE COUNTY STATION, UNIT 2, EXTENSION OF RELIEF REGARDING SAFETY RELIEF VALVE TESTING (TAC NO. MC2367)
Dear Mr. Crane:
The Nuclear Regulatory Commission (NRC) has approved extension of relief to delay the LaSalle County Station (LaSalle), Unit 2, safety/relief valve (S/RV) setpoint testing through February 2005. The extension is in response to your request dated March 19, 2004.
Exelon Generation Company, LLC (EGC) previously requested relief from the American Society of Mechanical Engineers / American National Standards Institute, Operation and Maintenance of Nuclear Power Plants, OM-1987, Part 1 (OM-1) requirement to test a minimum of 20 percent of Class 1 pressure relief valves within any 24 months. Relief Request RV-13 was submitted on January 7, 2002, to delay the LaSalle Unit 2 S/RV setpoint testing from October 2004 until its tenth refueling outage, which was originally scheduled to begin January 15, 2005. The NRC staff found that the proposed alternative may be authorized pursuant to Section 50.55a(a)(3)(ii) of Title 10 of the Code of Federal Regulations (10 CFR) on the basis that compliance with OM-1 testing requirements would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety. By letter dated July 29, 2002, the staff authorized the proposed alternative only for the period October 2004 through January 2005.
The LaSalle Unit 2 tenth refueling outage originally scheduled to begin on January 15, 2005, was rescheduled to begin on February 8, 2005. Due to the outage rescheduling, EGC requested that the previously approved authorization period of October 2004 through January 2005 be extended through February 2005.
The basis for the NRC safety evaluation dated July 29, 2002, supporting the granted relief is not affected by an additional one month extension. The proposed one-time extension of the S/RV testing frequency is not expected to affect the proven pressure relief reliability of these valves to perform their intended safety function.
The staff has evaluated Relief Request RV-13 and EGCs request for a one-time extension and finds that the proposed alternative may be authorized pursuant to 10 CFR 50.55a(a)(3)(ii) on the basis that compliance with OM-1 testing requirements would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety. The proposed testing provides reasonable assurance that the S/RVs will perform their intended safety function.
C. Crane Therefore, the proposed alternative is only being authorized for the period October 2004 through February 2005 for LaSalle County Station, Unit 2. This change incorporates the one-time extension of one month from January 2005 to February 2005. There are no other changes to the staffs safety evaluation dated July 29, 2002.
Sincerely,
/RA by DPickett for/
Anthony J. Mendiola, Chief, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No.: 50-374 cc: See next page
C. Crane Therefore, the proposed alternative is only being authorized for the period October 2004 through February 2005 for LaSalle County Station, Unit 2. This change incorporates the one-time extension of one month from January 2005 to February 2005. There are no other changes to the staffs safety evaluation dated July 29, 2002.
Sincerely,
/RA by DPickett for/
Anthony J. Mendiola, Chief, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No.: 50-374 cc: See next page DISTRIBUTION:
PUBLIC PDIII-2 r/fI WRuland OGC AMendiola GHill (4)
DTerao ACRS GHammer DHills, RIII WMacon PCoates ADAMS Accession Number: ML040820817 OFFICE PM:LPD3-2 LA:LPD3-2 SC:EMEB-A OGC SC:LPD3-2 NAME WMacon PCoates DTerao RHoefling DPickett for AMendiola DATE 03/23/04 03/23/04 03/24/04 04/05/04 04/06/04 OFFICIAL RECORD COPY
LaSalle County Station Units 1 and 2 cc:
Site Vice President - LaSalle County Station Exelon Generation Company, LLC 2601 North 21st Road Marseilles, IL 61341-9757 LaSalle County Station Plant Manager Exelon Generation Company, LLC 2601 North 21st Road Marseilles, IL 61341-9757 Regulatory Assurance Manager - LaSalle Exelon Generation Company, LLC 2601 North 21st Road Marseilles, IL 61341-9757 U.S. Nuclear Regulatory Commission LaSalle Resident Inspectors Office 2605 North 21st Road Marseilles, IL 61341-9756 Phillip P. Steptoe, Esquire Sidley and Austin One First National Plaza Chicago, IL 60603 Assistant Attorney General 100 W. Randolph St. Suite 12 Chicago, IL 60601 Chairman LaSalle County Board 707 Etna Road Ottawa, IL 61350 Attorney General 500 S. Second Street Springfield, IL 62701 Chairman Illinois Commerce Commission 527 E. Capitol Avenue, Leland Building Springfield, IL 62706 Robert Cushing, Chief, Public Utilities Division Illinois Attorney Generals Office 100 W. Randolph Street Chicago, IL 60601 Regional Administrator U.S. NRC, Region III 801 Warrenville Road Lisle, IL 60532-4351 Illinois Emergency Management Agency Division of Disaster Assistance &
Preparedness 110 East Adams Street Springfield, IL 62701-1109 Document Control Desk - Licensing Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Senior Vice President - Nuclear Services Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Vice President of Operations - Mid-West Boiling Water Reactors Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Vice President - Licensing and Regulatory Affairs Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
LaSalle County Station Units 1 and 2 Director - Licensing and Regulatory Affairs Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Associate General Counsel Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Manager Licensing - Dresden, Quad Cities and Clinton Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555