ML15253A555
| ML15253A555 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/06/1999 |
| From: | Joseph Sebrosky NRC (Affiliation Not Assigned) |
| To: | Charemagne Grimes NRC (Affiliation Not Assigned) |
| References | |
| NUDOCS 9908110002 | |
| Download: ML15253A555 (6) | |
Text
August 6, 1999 MEMORANDUM TO: Christopher I. Grimes, Chief License Renewal and Standardization Branch Division of Regulatory Improvement Programs FROM:
Joseph M. Sebrosky, Project Manager Origina 8ind By License Renewal and Standardization Branch Division of Regulatory Improvement Programs
SUBJECT:
FORTHCOMING MEETING WITH DUKE ENERGY CORPORATION (DUKE) ON LICENSE RENEWAL FOR OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 DATE & TIME:
Wednesday, August 18, 1999 4:00 p.m. - 5:00 p.m.
LOCATION:
Oconee Nuclear Station 7812 Rochester Hwy. (Hwy. 130/183),
Maintenance Training Facility, Room 140 South.
Seneca, SC 29672 PURPOSE:
The NRC staff will be at the Oconee site from August 16 through August 18, 1999, to review material associated with the scoping process used for the license renewal application for Oconee Units 1, 2, and 3.
Attached is background material and the agenda for the staffs review. A public meeting will be held at the end of the visit to discuss the staffs observations.
PARTICIPANTS:*
NRC Duke R. Latta, NRR L. Nicholson T. Quay, NRR E. Burchfield C. Gratton, NRR S. Nader C. Grimes, NRR G. Robision R. Prato, NRR R. Gill C. Julian, NRC Region II et al.
J. Sebrosky, NRR et al.
Docket Nos. 50-269, 50-270, and 50-287 cc: w/attachment: See next page CONTACT:
Joseph M. Sebrosky of NRR at 301-415-3245 or Judy Smith of Duke Energy Corporation at 864-885-4309.
- Meetings between NRC technical staff and applicants or licensees are open for interested members of the public, intervenors, or other parties to attend as observers pursuant to "Commission Policy Statement on Staff Meetings Open to the Public" 59 Federal Reqister 48340, 9/20/94.
- See previous concurrence DOCUMENT NAME:G:\\RLSB\\SEBROSKY\\aug scoping mtg notice.wpd OFFICE LA RLSB IQMB RLSB:BC NAME EHylton*
JSebrosk DDorman*
ClGrime 1
DATE 8/05/99 6/(o/99 8/5/99 e /G/99" OFFICIAL RECORD COPY 9908110002 990806 PDR ADOCK 05000269 P
~
PDR-
Oconee Nuclear Station (License Renewal) cc:
Ms. Lisa F. Vaughn Duke Energy Corporation Mr. J. E. Burchfield 422 South Church Street Compliance Manager Mail Stop PB-05E Duke Energy Corporation Charlotte, North Carolina 28201-1006 Oconee Nuclear Site P. 0. Box 1439 Anne W. Cottingham, Esquire Seneca, South Carolina 29679 Winston and Strawn 1400 L Street, NW.
Ms. Karen E. Long Washington, DC 20005 Assistant Attorney General North Carolina Department of Justice Mr. Rick N. Edwards P. O. Box 629 Framatome Technologies Raleigh, North Carolina 27602 Suite 525 1700 Rockville Pike L. A. Keller Rockville, Maryland 20852-1631 Manager - Nuclear Regulatory Licensing Duke Energy Corporation Manager, LIS 526 South Church Street NUS Corporation Charlotte, North Carolina 28201-1006 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Mr. Richard M. Fry, Director Division of Radiation Protection Senior Resident Inspector North Carolina Department of U. S. Nuclear Regulatory Commission Environment, Health, and 7812B Rochester Highway Natural Resources Seneca, South Carolina 29672 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Regional Administrator, Region II U. S. Nuclear Regulatory Commission Gregory D. Robison Atlanta Federal Center Duke Energy Corporation 61 Forsyth Street, SW, Suite 23T85 Mail Stop EC-12R Atlanta, Georgia 30303 P. O. Box 1006 Charlotte, North Carolina 28201-1006 Virgil R. Autry, Director Division of Radioactive Waste Management Robert L. Gill, Jr.
Bureau of Land and Waste Management Duke Energy Corporation Department of Health and Mail Stop EC-12R Environmental Control P. 0. Box 1006 2600 Bull Street Charlotte, North Carolina 28201-1006 Columbia, South Carolina 29201-1708 RLGILL@DUKE-ENERGY.COM County Supervisor of Oconee County Douglas J. Walters Walhalla, South Carolina 29621 Nuclear Energy Institute 1776 I Street, NW W. R. McCollum, Jr., Vice President Suite 400 Oconee Site Washington, DC 20006-3708 Duke Energy Corporation DJW@NEI.ORG P. 0. Box 1439 Seneca, SC 29679 Chattooga River Watershed Coalition P. O. Box 2006 Clayton, GA 30525
August 16 through 18, 1999, Audit Background
Purpose:
The purpose of the audit is to attempt to resolve Oconee Nuclear Station (ONS) safety evaluation report (SER) open item 2.1.3.1-1. An agenda is attached for the audit.
Background:
The staff issued the SER related to the license renewal of ONS Units 1, 2, and 3 on June 16, 1999. Section 2.1 of the SER discusses the staffs assessment of Duke's methodology for identifying structures and components subject to an aging management review. One aspect of the staffs review was the scoping process that Duke used to comply with the requirements of 10 CFR 54.4(a)(1) and 10 CFR 54.4(a)(2). The NRC originally questioned aspects of Duke's scoping process in request for additional information (RAI) 2.2-6 that Duke responded to in a February 17, 1999, letter. A technical meeting was held on March 11, 1999, to further discuss the scoping issue. The meeting resulted in a revision to Duke's response to RAI 2.2-6 dated March 18, 1999, that provided an explanation of the scoping events set used for the license renewal mechanical scoping. Following the revision, the scoping issue remained open, leading to a May 11, 1999, management meeting to discuss the issue. In addition to the correspondence and meetings noted above, the NRC performed an inspection of Duke's scoping and screening process at Oconee from April 26 - 30, 1999. The inspection report 50-269/99-11, 50-270/99-11, and 50-287/99-11, dated May 24, 1999, also contains information related to this issue.
The May 11, 1999, management meeting resulted in action items that were carried forth as open item 2.1.3.1-1 in the SER. Specifically, the SER contains the following related to this open item:
The applicant agreed to supplement its response to the staff's request for additional information (RAI) 2.2-6, to include a description of the process used to identify events for ONS license renewal scoping consistent with the presentation that was given to the staff.
The applicant agreed to provide an explanation as to how the 26 events identified during the meeting are sufficient to satisfy 10 CFR 54.4(a)(1) and 54.4(a)(2). This is Open Item 2.1.3.1-1.
Once the information identified in item 1 above is provided, the staff will determine whether additional inspection activities will be needed to verify that there is reasonable assurance that the Oconee systems, structures and components that are within scope of the license renewal rule have been captured by the applicant's process. This is part of open item 2.1.3.1-1.
By letter date-June 22, 1999, Duke responded to the first part of open item 2.1.3.1-1. The staff's prelimii ary assessment of Duke's response is that it resolves the first part of open item 2.1.3.1-1. (The staff will present its final conclusion on this part of the issue in an update to the SER).
Attachment
In accordance with the second part of open item 2.1.3.1-1, the staff has determined that an additional audit is needed to resolve the issue. In the March 11, 1999, meeting Duke stated that there are 26 events that were considered scoping events that were used in the mechanical scoping area. Duke also stated that it reviewed an additional 32 events for possible inclusion into the set of scoping events. The staff's intention is to probe the additional 32 events that were considered for possible inclusion into the scoping events set.
Because the 26 scoping events that Duke used only considered those design-basis events identified in the Oconee updated final safety analysis report Chapter 15 and a limited number of other events, it is unclear as to whether all the design-basis events as required under 10 CFR 54.4(a)(1) and defined in 10 CFR 50.49(b)(1) have been identified. Furthermore, since the implementation of the applicant's scoping methodology may not have identified all the systems structures and components required in accordance with 10 CFR 54.4(a)(1), the potential exists for this concern to also affect the results of the scoping activities for the non-safety-related.
systems structures and components required under 10 CFR 54.4(a)(2).
The staff will review Duke's justification for the following events: pipe rupture, loss of decay heat removal, updated steam generator tube rupture analysis,1oss of spent fuel pool cooling, loss of heating ventilation and air conditioning (HVAC) to the control room, and fuel handling accident.
The first three events were identified during the April 26 - 30 inspection at the site. The fourth event, loss of spent fuel pool cooling, was also identified during the April 26 - 30 inspection and SER open item 2.2.3-1 is related to this issue. The fifth issue, loss of HVAC to the control room is related to SER open item 2.2.3.4.3.2.1-1. The staff identified the fuel handling accident because of concerns related to the cabling associated with the fuel handling bridges. Depending on the results of the review associated with the above 6 events the staff may expand its review.
In determining whether any of the events should have been considered the staff expects to use guidance associated with generic license renewal issue 98-0082 "Scoping Guidance." The staff expects that its position on the issue will be issued to the Nuclear Energy Institute prior to the audit.
-3 Agenda for August 16 -19, 1999 Scoping Audit Time Topic 8/16 9:00 am Review of material associated with the following events: pipe rupture, loss through 8/17 of decay heat removal, updated steam generator tube rupture analysis, 12:00 pm loss of spent fuel pool cooling, loss of heating ventilation and air conditioning to the control room, and fuel handling accident.
8/17 1:30 pm Entrance portion of the audit 8/17 1:45 pm Duke presents overview of scoping process and process used to identify events for possible inclusion into the scoping events set.
8/17 2:30 pm Staff presents overview of generic renewal position 98-0082 "Scoping Guidance" 8/17 3:00 pm Begin discussion with Duke on the results of the staff's review of the above 6 events 8/18 8:00 am Continue discussion with Duke on the results of the staffs review of the through 12:00 pm above 6 events 8/18 1:00 pm NRC caucus on the results of the audit through 2:30 pm 8/18 2:30 pm Discussion with Duke regarding the results of the audit through 4:00 pm 8/18 4:00 pm Meeting with the public to discuss the staff's observations through 5:00 pm
Distribution.
H-ard-copy PUBLIC pak Fily RLSB RF N. Dudley, ACRS - T2E26 R. Zimmerman W. Kane D. Matthews S. Newberry C. Grimes C. Carpenter B. Zalcman J. Strosnider R. Wessman E. Imbro W. Bateman J. Calvo T. Hiltz G. Holahan T. Collins C. Gratton B. Boger R. Correia R. Latta J. Moore J. Rutberg R. Weisman M. Mayfield S. Bahadur N. Chokshi J. Vora A. Murphy D. Martin W. McDowell S. Droggitis M. Modes RLSB Staff R. Emch D. LaBarge L. Plisco C. Ogle R. Trojanowski M. Scott C. Julian J. Peralta J. Wilson C. Sochor