IR 05000528/2010007
| ML101190585 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/29/2010 |
| From: | O'Keefe N NRC/RGN-IV/DRS/EB-2 |
| To: | Edington R Arizona Public Service Co |
| References | |
| IR-10-007 | |
| Download: ML101190585 (60) | |
Text
April 29, 2010
SUBJECT:
PALO VERDE NUCLEAR GENERATING STATION - NRC LICENSE RENEWAL INSPECTION REPORT 0500052812010007; 050005291201 0007; 0500053012010007
Dear Mr. Edington:
February 26, 2010
SUBJECT:
PALO VERDE NUCLEAR GENERATING STATION - NRC LICENSE RENEWAL INSPECTION REPORT 05000528/2010007; 05000529/2010007; 05000530/2010007
Dear Mr. Edington:
On February 26,2010, a U.S. Nuclear Regulatory Commission (NRC) team completed the onsite portion of an inspection of your application for license renewal of your Palo Verde Nuclear Generating Station. The team discussed the inspection results with Mr. J. Hesser, Vice President, Engineering and other members of your staff during an exit meeting conducted on February 26, 2010. On April 16, 2010, the team conducted a supplemental exit meeting with Mr. R. Bement, Vice President Nuclear Operations, and other members of your staff to discuss two issues related to a recent potential age-related failure and structures monitoring program scope and frequency.
This inspection examined activities that supported the application for a renewed license for Palo Verde Nuclear Generating Station. The inspection addressed the applicant's processes for scoping and screening structures, systems, and components to select equipment subject to an aging management review. Further, the inspection addressed the development and implementation of aging management programs to support continued plant operation into the period of extended operation. As part of the inspection, the NRC examined procedures and representative records, interviewed personnel, and visually examined accessible portions of various structures, systems, or components to verify license renewal boundaries and to observe any effects of equipment aging. The visual examination of structures, systems, and components also included some areas not normally accessible, which included cable vaults.
These NRC inspection activities constitute one of several inputs into the NRC review process for license renewal applications.
The team concluded that, generally, your staff appropriately implemented the screening and scoping of nonsafety-related structures, systems, and components (required in 10 CFR 54.4(a)(2)) and conducted the aging management portion of the license renewal activities, as described in the license renewal application, and as supplemented throuqh your responses to requests for additional information from the ~JRC. The team concluded that your staff maintained the documentation supporting the application in an auditable and retrievable form. The team identified a number of issues that resulted in your staff supplementing or amending the application, programs, and procedures.
Arizona Public Service Company
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Overall, based on the samples reviewed by the team, the inspection results support a conclusion of reasonable assurance that actions have been identified and have been or will be taken to manage the effects of aging in the structures, systems, and components identified in your application and that the intended functions of these structures, systems, and components will be maintained in the period of extended operation. However, the team identified one area of concern related to the scope and frequency of your structural inspections planned for the period of extended operation, as implemented by your Maintenance Rule structures monitoring program. Specifically! the team determined that you had not completed a complete structural baseline inspection of the condition of all structures and that you do not have plans to perform the inspections of external structures on a 5-year frequency. We recognize that you continue to have ongoing dialogue with NRC regarding this issue. Additional review is needed to determine whether you have established a program to manage the effects of aging for the condition of external structures during the period of extended operation. Therefore, the staff will continue to review this issue.
In accordance with 10 CFR 2.390 of the NRC's "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 Pubiicly Avaiiabie Records component of NRC's document system (ADAMS).
ADAM§ is accessible from the NRC Web site at (the Pubiic Electronic Reading Room).
Sincerely, P
.
~ & i l O'Keefe, Chief Engineering Branch 2 Division of Reactor Safety Dockets: 05000528; 05000529; 05000530 Licenses: NPF-41; NPF-51; NPF-74
Enclosures:
Supplemental Information
REGION IV==
Arizona Public Service Company Palo Verde Nuclear Generating Station 5951 S. Wintersburg Rd Tonopah, Arizona February 1 - 5, and February 22 - 26, 2010 G. Pick, Senior Reactor inspector, Engineering Branch 2, Division of Reactor Safety S. Graves, Senior Reactor Inspector, Engineering Branch 2, Division of Reactor Safety R. Latta, Senior Reactor Inspector, Engineering Branch 1, Division of Reactor Safety J. Mateychick, Senior Reactor Inspector, Engineering Branch 2, Division of Reactor Safety G. Meyer, Senior Reactor Inspector, Engineering Branch 1, Division of Reactor Safety, Region I I. Anchondo, Reactor Inspector, Plant Support Branch 2, Division of Reactor Safety D. Brucker, Project Manager, Division of License Renewai, Office of Nuclear Reactor Regulation L. Regner, Project Manager, Division of License Renewal, Office of Nuclear Reactor Regulation M. Williams, Reactor Inspector, Plant Support Branch 2, Division of Reactor Safety Neil O'Keefe, Chief Engineering Branch 2 Division of Reactor Safety Enclosure Dockets:
Licenses:
Report:
Applicant:
Facility:
Location:
Dates:
Inspectors:
Accompanying Personnel:
Approved By:
U.S. NUCLEAR REGULATORY COMMISSION
REGION IV
05000528; 050000529; 05000530 NPF-41; NPF-51; NPF-74 05000528/2010007; 05000528/2010007; 05000528/2010007 Arizona Public Service Company Palo Verde Nuclear Generating Station 5951 S. Wintersburg Rd Tonopah, Arizona February 1 - 5, and February 22 - 26, 2010 G. Pick, Senior Reactor inspector, Engineering Branch 2, Division of Reactor Safety S. Graves, Senior Reactor Inspector, Engineering Branch 2, Division of Reactor Safety R. Latta, Senior Reactor Inspector, Engineering Branch 1, Division of Reactor Safety J. Mateychick, Senior Reactor Inspector, Engineering Branch 2, Division of Reactor Safety G. Meyer, Senior Reactor Inspector, Engineering Branch 1, Division of Reactor Safety, Region I I. Anchondo, Reactor Inspector, Plant Support Branch 2, Division of Reactor Safety D. Drucker, Project Manager, Division of License Renewal, Office of Nuclear Reactor Regulation L. Regner, Project Manager, Division of License Renewal, Office of Nuclear Reactor Regulation M. Williams, Reactor Inspector, Plant Support Branch 2, Division of Reactor Safety Neil O'Keefe, Chief Engineering Branch 2 Division of Reactor Safety
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Enclosure
SUMMARY OF FINDINGS
......................................................................................................... 3
REPORT DETAILS
OTHER ACTIVITIES
40A5 Other - License Renewal....................................................................................... 4 b.1 Scoping of Nonsafety-Related Structures, Systems, and Components............ 4 b.2 New Aging Management Program Evaluations............................................... 6
.1 B2.1.16 One-Time Inspection (XI.M32).................................................... 7
.2 B2.1.17 Selective Leaching of Materials (XI.M33)................................... 7
.3 B2.1.18 Buried Piping and Tanks Inspection (XI.M34)............................. 8
.4 B2.1.25 External Surfaces Monitoring (XI.M36)...................................... 10
.5 B2.1.26 Inaccessible Medium Voltage Cables Not Subject to
10 CFR 50.49 Environmental Qualification Requirements (XI.E3).......... 11
.6 B2.1. 36 Metal Enclosed Bus (XI. E4)....................................................... 12
b.3 Existing Aging Management Program Evaluations......................................... 13
.1 B2.1.2 Water Chemistry (Xi.M2)............................................................. 14
.2 B2.1.4 Boric Acid Corrosion (XI.M1 0)..................................................... 15
.3 B2.1.6 Flow-Accelerated Corrosion (XI.M17).......................................... 15
.4 B2.1.9 Open-Cycle Cooling Water System (XI. M20)............................... 16
.5 B2.1.10 Closed-Cycle Cooling Water System (XI.M21).......................... 17
.6 B2.1.11 Inspection of Overhead Heavy Load and Light Load (Related to
Refuelling) Handling Systems (XI.M23).................................................. 18
.7 B2.1.12 Fire Protection (XI.M26)............................................................ 20
.8 B2.1.13 Fire Water System (XI.M27)...................................................... 21
.9 B2.1.14 Fuel Oil Chemistry (XI.M30)...................................................... 22
.10 B2.1.15 Reactor Vessel Surveillance (XI.M31)..................................... 22
.11 B2.1.19 One-Time Inspection of ASME Code Class 1 Small Bore
Piping (XI.M35)....................................................................................... 23 12 B2.1.23 Lubricating Oil Analysis (XI.M35)....................................... 24
.13 B2.1.25 Electrical Cables and Connections Not Subject to
10 CFR 50.49 Environmental Qualification Requirements Used in Instrumentation Circuits (XI.E2).............................................................. 24
.14 B2.1.27 ASME Section XI, Subsection IWE (XI.S 1).............................. 25
.15 B2.1.28 ASME Section XI, Subsection IWL (XI.S2).............................. 26
.16 B2.1.29 ASME Section XI, Subsection IWF (XI.S3).............................. 27
.17 B2.1.30 10 CFR Part 50, Appendix J (XI.S4)........................................ 28
.18 B2.1.31 Masonry Wall (XI.S5)............................................................... 28
.19 B2.1.32 Structures Monitoring (XI.S6).................................................. 29
.20 B2.1.34 Nickel Alloy Aging Management.............................................. 31
b.4 System Reviews............................................................................................ 31 c. Overall Conclusion........................................................................................... 32 40A6 Meetings, Including Exit........................................................................................ 32
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
Applicant Personnel
- M. Brutcher, Senior Engineer
- D. Carr, Senior Chemistry Technician
- M. Dilorenzo, Section Leader, Components - Mechanical Engineering
- E. Fernandez, Senior Engineer, Programs Engineering
- D. Hansen, Senior Consulting Engineer, Programs Engineering
- A. Hartwig, Section Leader, Instrumentation and Control Design Engineering
- M. Hypse, Technical Management Assistant, Electrical Design Engineering
- K. Jackson, Senior Engineer, Civil Programs Engineering
5. Johnson, Lubrication Engineer
- J. Johnson, Consulting Engineer, Life Cycle Management
- S. Karimi, Senior Engineer, License Renewal
- A. Krainik, Manager, License Renewal
- C. Landstrom, Senior Engineer, Balance of Plant System Ecgineering
- R. Lindenlaub, Senior Engineer, Component Programs
- D. Lipinski, Engineering Consultant, Life Cycle Management
- A. Meeden, Section Leader, Design Engineering
- G. Michael, Consulting Engineer, Licensing
- F. Oreshack, Consulting Engineer, Licensing
- G. Pilicy Ill, Engineer Ill, License Renewal
- S. Pittalwala, Section Leader, Waste Reclamation Facility
- F. Poteet I l l, Senior Engineer, Engineering Programs
- S. Quan, Section Leader, Component Programs
- D. Raught, System Engineer, Essential Spray Pond
- J. Ritchie, Senior Engineer, Programs Engineering
I(. Schrecker, Section Leader, Balance of Plant System Engineering
- P. Speer, Consulting Engineer, Waste Reclamation Facility
- J. Trujillo, Senior Engineer, License Renewal
- D. Wittas,Consulting Engineer, Waste Reclamation Facility
Strategic Teaming And Resource Sharing Center of Business Personnel
- E. Blocher, Project Manager
- G. Chen, Mechanical Engineer
- J. Johnson, Structural Lead
- A. Saunders, Mechanical Lead
KEY POINTS OF CONTACT
6pJllicant Personnel
- M. Brutcher, Senior Engineer
- D. Carr, Senior Chemistry Technician
- M. Dilorenzo, Section Leader, Components - Mechanical Engineering
- E. Fernandez, Senior Engineer, Programs Engineering
- D. Hansen, Senior Consulting Engineer, Programs Engineering
- A. Hartwig, Section Leader, Instrumentation and Control Design Engineering
- M. Hypse, Technical Management Assistant, Electrical Design Engineering
- K. Jackson, Senior Engineer, Civil Programs Engineering
- B. Johnson, Lubrication Engineer
- J. Johnson, Consulting Engineer, Life Cycle Management
- S. Karimi, Senior Engineer, License Renewal
- A. Krainik, Manager, License Renewal
- C. Landstrom, Senior Engineer, Balance of Plant System Engineering
R Lindenlaub, Senior Engineer, Component Programs
- D. Lipinski, Engineering Consultant, Life Cycle Management
- A. Meeden, Section Leader, Design Engineering
- G. Michael, Consulting Engineer, licenSing
- F. Oreshack, Consulting Engineer, Licensing
- G. Pilicy III, Engineer III, License Renewal
- S. Pittalwala, Section Leader, Waste Reclamation Facility
- F. Poteet III, Senior Engineer, Engineering Programs
- S. Quan, Section Leader, Component Programs
- D. Raught, System Engineer, Essential Spray Pond
- J. Ritchie, Senior Engineer, Programs Engineering
- K. Schrecker, Section Leader, Balance of Plant System Engineering
- P. Speer, Consulting Engineer, Waste Reclamation Facility
- J. Trujillo, Senior Engineer, License Renewal
- D. Wittas,Consulting Engineer, Waste Reclamation Facility
Strategic Teaming And Resource Sharing Center of Business Personnel
- E. Blocher, Project Manager
- G. Chen, Mechanical Engineer
- J. Johnson, Structural Lead
- A. Saunders, Mechanical Lead
LIST OF ITEMS
OPENED
Opened
- 05000528,
- 05000529, URI Impact of recent operating experience on
- 05000530/2010007-01 Metal-Enclosed Bus program (Section 40A5.b.2.6)
- 05000528,
- 05000529, URI Structures monitoring frequency and scope
- 05000530/2010007-02 (Section 40A5.b.3.19)