ML022260946
| ML022260946 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 08/20/2002 |
| From: | Tam P NRC/NRR/DLPM/LPD1 |
| To: | Skolds J Exelon Generation Co, Exelon Nuclear |
| Tam P, NRR/DLPM, 415-1451 | |
| References | |
| TAC MB4960 | |
| Download: ML022260946 (4) | |
Text
August 20, 2002 Mr. John L. Skolds, President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
OYSTER CREEK NUCLEAR GENERATING STATION - SECOND REQUEST FOR ADDITIONAL INFORMATION REGARDING YOUR APRIL 26, 2002, APPLICATION FOR AMENDMENT (TAC NO. MB4960)
Dear Mr. Skolds:
The Nuclear Regulatory Commission (NRC) staff is reviewing the subject application for amendment whereby AmerGen proposed to incorporate the Boiling Water Reactor Owners Group stability Option II solution methodology to ensure that coupled neutronic/thermal-hydraulic instabilities are detected and suppressed. The NRC staff held a telephone conference with your staff on August 13, 2002, to discuss draft questions previously transmitted by e-mail, and which are available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML022190509. Questions in that e-mail have been formalized into the enclosed request for additional information (RAI).
Your staff indicated that they can respond within 2 weeks of receipt of this RAI to support NRCs issuance of the requested amendment by September 30, 2002. If you need clarification of the RAI, please call me at 301-415-1451.
Sincerely,
/RA/
Peter S. Tam, Senior Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-219
Enclosure:
As stated cc w/encl: See next page
REQUEST FOR ADDITIONAL INFORMATION OYSTER CREEK NUCLEAR GENERATING STATION APPLICATION FOR AMENDMENT DATED APRIL 26, 2002 1.
Provide the results and conclusions of the analysis for operation of Oyster Creek in the extended operating region (reference General Electric (GE) Report MDE-63-0386, "Extended Load Line Limit Analysis for Oyster Creek Nuclear Generating Station," dated March 1986). Also, provide the extended load line limit analysis (ELLLA) region in Attachments 1 and 2, and identify the region which is currently restricted from full use of the ELLLA region of the power/flow map because of the flow-biased rod block set points.
2.
Provide justification for Oyster Creeks transition to the Generic Boiling Water Reactor Owners Group (BWROG) Long Term Stability Solution Option II, and identify the differences between the current method and the new one recommended by GE for Cycle 19 operation. Also, identify any differences between the BWROG Long Term Stability Solution Option II and NEDC-33065P, and hardware modifications due to this proposed change.
3.
Describe any impact on the BWROG Long Term Stability Solution Option II due to the 10 CFR Part 21 issue on the Generic DIVOM curve for regional mode oscillations, since the Option II method uses quadrant-based average power range monitor scram to detect and suppress both in-phase and out-of-phase oscillations.
4.
Provide quantitative results from review of the Updated Final Safety Analysis Report (UFSAR) transient events such as rod withdrawal event, loss of feedwater heating, main steam isolation valve closure, and startup of an inactive loop at an incorrect temperature and show that the old UFSAR results are still valid.
Enclosure
August 20, 2002 Mr. John L. Skolds, President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
OYSTER CREEK NUCLEAR GENERATING STATION - SECOND REQUEST FOR ADDITIONAL INFORMATION REGARDING YOUR APRIL 26, 2002, APPLICATION FOR AMENDMENT (TAC NO. MB4960)
Dear Mr. Skolds:
The Nuclear Regulatory Commission (NRC) staff is reviewing the subject application for amendment whereby AmerGen proposed to incorporate the Boiling Water Reactor Owners Group stability Option II solution methodology to ensure that coupled neutronic/thermal-hydraulic instabilities are detected and suppressed. The NRC staff held a telephone conference with your staff on August 13, 2002, to discuss draft questions previously transmitted by email, and which are available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML022190509. Questions in that e-mail have been formalized into the enclosed request for additional information (RAI).
Your staff indicated that they can respond within 2 weeks of receipt of this RAI to support NRCs issuance of the requested amendment by September 30, 2002. If you need clarification of the RAI, please call me at 301-415-1451.
Sincerely,
/RA/
Peter S. Tam, Senior Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-219
Enclosure:
As stated cc w/encl: See next page DISTRIBUTION:
PUBLIC OGC SRichards PD1-1 R/F RLaufer WBeckner PTam THuang SLittle ACRS JRogge, RI Accession Number: ML022260946 OFFICE PD1-1/PM PD1-1/LA SRXB SRXB/SC PDI-1/SC NAME PTam SLittle THuang RCaruso RLaufer DATE 8/15/02 8/15/02 8/15/02 8/15/02 8/20/02 OFFICIAL RECORD COPY
Oyster Creek Nuclear Generating Station cc:
Chief Operating Officer 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 - Mid-Atlantic Operations Support Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Senior Vice President -
Mid Atlantic Regional Operating Group Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Kevin P. Gallen, Esquire Morgan, Lewis, & Bockius LLP 1800 M Street, NW Washington, DC 20036-5869 Kent Tosch, Chief New Jersey Department of Environmental Protection Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625 Vice President -
Licensing and Regulatory Affairs Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Site Vice President Oyster Creek Nuclear Generating Station AmerGen Energy Company, LLC PO Box 388 Forked River, NJ 08731 H. J. Miller Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406-1415 Mayor of Lacey Township 818 West Lacey Road Forked River, NJ 08731 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 445 Forked River, NJ 08731 Director - Licensing Exelon Generation Company, LLC Correspondence Control Desk P.O. Box 160 Kennett Square, PA 19348 Oyster Creek Generating Station Plant Manager AmerGen Energy Company, LLC P.O. Box 388 Forked River, NJ 08731 Regulatory Assurance Manager Oyster Creek Nuclear Generating Station AmerGen Energy Company, LLC P.O. Box 388 Forked River, NJ 08731 Vice President, General Counsel and Secretary Exelon Generation Company, LLC 300 Exelon Way Kennett Square, PA 19348 J. Rogge, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406-1415 Manager Licensing - Oyster Creek and Three Mile Island Exelon Generation Company, LLC Nuclear Group Headquarters Correspondence Control P.O. Box 160 Kennett Square, PA 19348 Correspondence Control Desk Exelon Generation Company, LLC 200 Exelon Way, KSA 1-N-1 Kennett Square, PA 19348