ML070610285
| ML070610285 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/02/2007 |
| From: | Hopper G NRC/RGN-II/DRS/EB3 |
| To: | Brandi Hamilton Duke Energy Carolinas, Duke Power Co |
| References | |
| Download: ML070610285 (10) | |
Text
March 02, 2007 Duke Power Company LLC d/b/a Duke Energy Carolinas, LLC ATTN: Mr. Bruce H. Hamilton Vice President Oconee Nuclear Station 7800 Rochester Highway Seneca, SC 29672
SUBJECT:
OCONEE NUCLEAR PLANT - NOTIFICATION OF INSPECTION AND REQUEST FOR INFORMATION
Dear Mr. Hamilton:
From April 23 to May 11, 2007, the NRC will perform the baseline inservice inspection (ISI) at the Oconee Nuclear Plant, Unit 2 (NRC Inspection Procedure 71111.08). Experience has shown that this inspection is resource intensive both for the NRC inspectors and your staff. In order to minimize the impact to your on-site resources and to ensure a productive inspection, we have enclosed a request for documents needed for this inspection. These documents have been divided into two groups. The first group (section A of the enclosure) identifies information to be provided prior to the inspection to ensure that the inspectors are adequately prepared.
The second group (section B of the enclosure) identifies the information the inspectors will need upon arrival at the site. It is important that all of these documents are up to date and complete in order to minimize the number of additional documents requested during the preparation and/or the onsite portions of the inspection.
We have discussed the schedule for these inspection activities with your staff and understand that our regulatory contact for this inspection will be Judy Smith. Our inspection dates are subject to change based on your updated schedule of outage activities. If there are any questions about this inspection or the material requested, please contact the lead inspector Joel E. Rivera-Ortiz at (404) 562-4825 (jer6@nrc.gov).
In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS).
DPC 2 ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
George T. Hopper, Chief Engineering Branch 3 Division of Reactor Safety Docket No. 50-270 License No. DPR-47
Enclosure:
INSERVICE INSPECTION DOCUMENT REQUEST
DPC 3 cc w/encl: Lyle Graber, LIS B. G. Davenport NUS Corporation Compliance Manager (ONS) Electronic Mail Distribution Duke Power Company LLC d/b/a Duke Energy Carolinas, LLC R. L. Gill, Jr., Manager Electronic Mail Distribution Nuclear Regulatory Issues and Industry Affairs Lisa F. Vaughn Duke Power Company LLC.
Associate General Counsel d/b/a Duke Energy Carolinas, LLC and Managing Attorney 526 S. Church Street Duke Energy Corporation Charlotte, NC 28201-0006 526 South Church Street-EC 07H Charlotte, NC 28202 Charles Brinkman Director, Washington Operations Kathryn B. Nolan Westinghouse Electric Company Senior Counsel 12300 Twinbrook Parkway, Suite 330 Duke Energy Corporation Rockville, MD 20852 526 South Church Street -EC07H Charlotte, NC 28202 David A. Repka Winston & Strawn LLP Electronic Mail Distribution Beverly Hall, Chief Radiation Protection Section N. C. Department of Environmental Health & Natural Resources Electronic Mail Distribution Henry J. Porter, Assistant Director Div. of Radioactive Waste Mgmt.
S. C. Department of Health and Environmental Control Electronic Mail Distribution R. Mike Gandy Division of Radioactive Waste Mgmt.
S. C. Department of Health and Environmental Control Electronic Mail Distribution County Supervisor of Oconee County 415 S. Pine Street Walhalla, SC 29691-2145
OFFICE RII:DDRS RII:DRS RII:DRS SIGNATURE /RA/ /RA/ /RA/
NAME G. Hopper J.Rivera-Ortiz J. Moorman DATE 3/2/2007 02/26/2007 March 5, 2007 March 5, 2007 March 5, 2007 March 5, 2007 March 5, 2007 E-MAIL COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO 2
Inspection Dates: April 23 - 27, 2007 (Baseline ISI other than SG ISI)
May 7-11, 2007 (Baseline SG ISI)
Inspection Procedures: IP 71111.08 Inservice Inspection (ISI) Activities Inspector: Joel E. Rivera-Ortiz, Reactor Inspector A. Information Requested for the In-Office Preparation Week The following information should be sent to the Region II office in hard copy or electronic format (CD preferred), in care of Joel E. Rivera-Ortiz by April 13, 2007, to facilitate the selection of specific items that will be reviewed during the onsite inspection week. The inspector will select specific items from the information requested below and then request from your staff additional documents needed during the onsite inspection week (section B of this enclosure). We ask that the specific items selected from the lists be available and ready for review on the first day of inspection. *Please provide requested documentation electronically if possible. If requested documents are large and only hard copy formats are available, please inform the inspector and provide subject documentation during the first day of the onsite inspection. If you have any questions regarding this information request, please call the inspector as soon as possible.
A.1 ISI / Welding Programs and Schedule Information a) A detailed schedule (including preliminary dates) of:
i) Nondestructive examinations (NDEs) planned for Class 1 & 2 systems and containment, performed as part of your ASME Section XI, Risk Informed (if applicable), and augmented ISI Programs during the upcoming outage.
ii) Reactor pressure vessel head (RPVH) examinations planned for the upcoming outage, if any.
iii) Examinations planned for Alloy 82/182/600 components that are not included in the Section XI scope. (If applicable) iv) Examinations planned as part of your Boric Acid Corrosion Control Program (Mode 3 walkdowns, bolted connection walkdowns, etc.)
v) Welding activities that are scheduled to be completed during the upcoming outage (ASME Class 1 and 2 structures, systems, or components (SSCs))
Enclosure
3 b) A list of NDE reports (ultrasonic, radiography, magnetic particle, dye penetrant, visual VT-1, VT-2, and VT-3) which have identified recordable indications (geometric or flaw) on Code Class 1 & 2 systems since the beginning of the last refueling outage. The list of NDE reports should include a brief description of the SSC where the recordable indication was identified.
c) A list with a brief description (e.g. system, material, pipe size, weld number, and NDE performed) of the welds in Code Class 1 and 2 systems which have been fabricated due to component repair/replacement activities since the beginning of the last refueling outage, or are planned to be fabricated this refueling outage.
d) If reactor vessel weld examinations required by the ASME Code are scheduled to occur during the upcoming outage, provide a detailed description of the welds to be examined, and the extent of the planned examination. Please also provide reference numbers for applicable procedures that will be used to conduct these examinations.
e) Copy of any 10 CFR Part 21 reports applicable to your SSCs within the scope of Section XI of the ASME Code that have been identified since the beginning of the last refueling outage.
f) A list of any temporary non-code repairs in service (e.g. pinhole leaks).
g) Please provide copies of the most recent self assessments for the ISI, Welding, and Alloy 600 Programs.
A.2 Reactor Pressure Vessel Upper Head (RPVUH)
Not applicable A.3 Boric Acid Corrosion Control Program (BACCP) a) Copy of the procedures that govern the scope, equipment and implementation of the inspections required to identify boric acid leakage and the procedures for boric acid leakage/corrosion evaluation.
b) Please provide a list of leaks (including code class of the components) that have been identified since the last refueling outage and associated corrective action documentation. If during the last cycle, the Unit was shutdown, please provide documentation of containment walk-down inspections performed as part of the BACCP.
c) Please provide a copy of the most recent self-assessment performed for the BACCP.
Enclsoure
4 A.4 Steam Generator (SG) Inspections a) A detailed schedule of:
i) SG tube inspection, data analyses, and repair activities for the upcoming outage.
ii) SG secondary side inspection activities for the upcoming outage.
b) Please provide a summary of the scope of the SG ISI examinations, including examination methods such as Bobbin, Rotating Pancake, or Plus Points, and the percentage of tubes to be examined. *Do not provide these documents separately if already included in other information requested.
c) Please provide a copy of your SG ISI Inspection Program and Plan. Please include a copy of the Operational Assessment from last outage, and a copy of the following documents as they become available:
i) Degradation Assessment ii) Condition Monitoring Assessment d) Provide information on past history of the condition and issues pertaining to the primary side of the steam generators. *Do not provide these documents separately if already included in other information requested.
e) Provide information on any SG tube leakage experienced during the previous operating cycle. Also provide documentation identifying which SG was leaking and corrective actions completed or planned for this condition. (If applicable) f) Provide information on past history of the condition and issues pertaining to the secondary side of the steam generators (including items such as loose parts, fouling, top of tube sheet condition, crud removal amounts, etc.) *Do not provide these documents separately if already included in other information requested.
g) Please provide copies of your most recent self assessments of the SG monitoring, loose parts monitoring, and secondary side water chemistry control programs.
h) Please also indicate where the primary, secondary, and resolution analyses are scheduled to take place.
A.5 Additional information related to all ISI activities a) A list with a brief description of ISI, BACCP, and SG ISI related issues (e.g.,
condition reports) entered into your corrective action program since the beginning of the last refueling outage (for Units 1, 2, and 3).
Enclsoure
5 For example, a list based upon data base searches using key words related to piping or SG tube degradation such as: ISI, ASME Code,Section XI, NDE, cracks, wear, thinning, leakage, rust, corrosion, boric acid, or errors in piping/SG tube examinations.
b) Please provide names and phone numbers for the following program leads:
ISI contacts (Examination, planning)
Containment Exams Snubbers and Supports Repair and Replacement Program Manager Licensing Contact Site Welding Engineer Boric Acid Corrosion Control Program SG Inspection Activities (site lead and vendor contact)
B. Information to be provided on-site to the inspector at the entrance meeting (April 23, 2007):
B.1 ISI / Welding Programs and Schedule Information a) Updated schedules for ISI/NDE activities, including SG ISI, planned welding activities, and schedule showing contingency repair plans, if available.
b) For ASME Class 1 and 2 welds selected by the inspector from the lists provided from section A of this enclosure, please provide copies of the following documentation for each subject weld:
i) Weld data sheet (traveler) ii) Weld configuration and system location iii) Applicable Code Edition and Addenda for weldment iv) Applicable Code Edition and Addenda for welding procedures v) Applicable weld procedures (WPS) used to fabricate the welds vi) Copies of procedure qualification records (PQRs) supporting the WPS from B.1.b.v vii) Copies of mechanical test reports identified in the PQRs above viii) Copies of the nonconformance reports for the selected welds (If Applicable) ix) Radiographs of the selected welds and access to equipment to allow viewing radiographs (If RT was performed) x) Copies of the preservice examination records for the selected welds.
xi) Copies of welder performance qualifications records applicable to WPS, including documentation that welder maintained proficiency in the applicable welding processes specified in the WPS (At least six months prior to date subject work) xii) Copies of NDE personnel qualifications (VT, PT, UT, RT) as applicable Enclsoure
6 c) For the ISI related corrective action issues selected by the inspector from section A of this enclosure, provide a copy of the corrective actions and supporting documentation.
d) For the NDE reports with recordable indications on Code Class 1 & 2 systems selected by the inspector from section A above, provide a copy of the examination records, examiner qualification records, and associated corrective action documents.
e) A copy of (or ready access to) the most current revision of the ISI Program Manual and Plan for the current Interval.
f) For the NDEs selected by the inspector from section A of this enclosure, provide copy of the NDE procedures used to perform the examinations (including calibration and flaw characterization/sizing procedures). For ultrasonic examination procedures qualified in accordance with ASME Code,Section XI, Appendix VIII, provide documentation supporting the procedure qualification (e.g., the EPRI performance demonstration qualification summary sheets). Also, include documentation of the specific equipment to be used (e.g., ultrasonic unit, cables, and transducers including serial numbers) and NDE personnel qualification records.
B.2 Reactor Pressure Vessel Upper Head (RPVUH)
Not applicable B.3 Boric Acid Corrosion Control Program (BACCP) a) Please provide boric acid walk down inspection results, an updated list of boric acid leaks identified so far this outage, associated corrective action documentation, and overall status of planned boric acid inspections.
b) Please provide any engineering evaluations completed for boric acid leaks identified since the end of the last refueling outage. Please include a status of corrective actions to repair and/or clean these boric acid leaks. Please specify which known leaks, if any, have remained in service or will remain in service as active leaks.
c) In accordance with NRC inspection procedure 71111.08, the inspector would like to conduct an independent boric acid walk down of the Reactor Building early in the inspection week. Please have knowledgeable BACCP staff available to accompany the inspector during the walk down.
Enclsoure
DPC 6 B.4 Steam Generator (SG) Inspections a) Copies of the Examination Technique Specification Sheets (ETSS) and associated justification for any revisions.
b) Copy of the guidance to be followed if a loose part or foreign material is identified in the SGs.
c) Please provide a copy of the ET procedures used to perform the SG ISI (specifically calibration and flaw characterization/sizing procedures, etc). Also include documentation for the specific equipment to be used.
d) List of corrective action documents generated by the vendor and/or site with respect to SG inspection activities.
e) Copy of SG Eddy Current Data Analyst Guidelines, and Site Validated Eddy Current Technique. Additionally, please provide a copy of EPRI Appendix H Eddy Current Technique Qualification Records.
B.5 Codes and Standards a) Ready access to: (i.e. copies provided to the inspector to use for the duration of the inspection at the on-site inspection location, or room number and location where available) i) Applicable editions of the ASME Code (Sections V, IX and XI) for the inservice inspection program and the repair/replacement program.
ii) EPRI and industry standards referenced in the procedures used to perform the SG tube eddy current examination.
Inspector Contact Information:
Joel E. Rivera-Ortiz Reactor Inspector 404-562-4825 jer6@nrc.gov Mailing Address:
US NRC Region 2 Attn: Joel E. Rivera-Ortiz 61 Forsyth Street SW, Suite 23T85 Atlanta, GA 30303 Enclsoure