ML102371285
| ML102371285 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 08/24/2010 |
| From: | Greg Werner NRC/RGN-IV/DRS/PSB-2 |
| To: | Edington R Arizona Public Service Co |
| References | |
| IR-10-005 | |
| Download: ML102371285 (13) | |
See also: IR 05000530/2010005
Text
UNITED STATES
NUC LE AR RE G UL AT O RY C O M M I S S I O N
R E GI ON I V
612 EAST LAMAR BLVD , SU I TE 400
AR LI N GTON , TEXAS 76011-4125
August 24, 2010
Randall K. Edington, Executive
Vice President, Nuclear/CNO
Arizona Public Service Company
P.O. Box 52034, Mail Stop 7602
Phoenix, AZ 85072-2034
SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNIT 3 - NOTIFICATION
OF INSPECTION (NRC INSPECTION REPORT 05000530/2010005) AND
REQUEST FOR INFORMATION
Dear Mr. Edington:
From October 4 through 15, 2010, reactor inspectors from the U.S. Nuclear Regulatory
Commissions (NRC) Region IV office will perform the baseline inservice inspection at
Palo Verde Nuclear Generating Station (Unit 3), using NRC Inspection Procedure 71111.08,
Inservice Inspection Activities, and Temporary Instruction 2515/172, Reactor Coolant System
Dissimilar Metal Butt Welds. Experience has shown that this inspection is a resource intensive
inspection both for the NRC inspectors and your staff. In order to minimize the impact to your
onsite 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 due September 29, 2010, (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 Mr. Delbert Elkinton of your licensing
organization. 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, Matthew Young at (817) 276-6545 (matt.young@nrc.gov), or
Theresa Buchanan at (817) 276-6503 (theresa.buchanan@nrc.gov) or Blake Rice at
(817) 276-6563 (blake.rice@nrc.gov).
This letter does not contain new or amended information collection requirements subject to the
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection
requirements were approved by the Office of Management and Budget, Control
Number 3150 0011. The NRC may not conduct or sponsor, and a person is not required to
respond to, a request for information or an information collection requirement unless the
Arizona Public Service Company -2-
requesting document displays a currently valid Office of Management and Budget
control number.
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 component of NRCs
document system (ADAMS). ADAMS is accessible from the NRC web site at
http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Gregory E. Werner, Chief
Plant Support Branch 2
Division of Reactor Safety
Docket: 50-530
License: NPF-74
Enclosure:
Inservice Inspection Document Request
cc w/Enclosure:
Mr. Steve Olea
Arizona Corporation Commission
1200 W. Washington Street
Phoenix, AZ 85007
Mr. Douglas K. Porter, Esq
Southern California Edison Company
2244 Walnut Grove Avenue
Rosemead, CA 91770
Chairman
Maricopa County Board of Supervisors
301 W. Jefferson, 10th Floor
Phoenix, AZ 85003
Mr. Aubrey V. Godwin, Director
Arizona Radiation Regulatory Agency
4814 South 40 Street
Phoenix, AZ 85040
Arizona Public Service Company -3-
Mr. Dwight C. Mims
Vice President
Regulatory Affairs and Plant Improvement
Palo Verde Nuclear Generating Station
Mail Station 7605
P.O. Box 52034
Phoenix, AZ 85072-2034
Mr. Ron Barnes, Director
Regulatory Affairs
Palo Verde Nuclear Generating Station
MS 7638
P.O. Box 52034
Phoenix, AZ 85072-2034
Mr. Jeffrey T. Weikert
Assistant General Counsel
El Paso Electric Company
Mail Location 167
123 W. Mills
El Paso, TX 79901
Michael S. Green
Senior Regulatory Counsel
Pinnacle West Capital Corporation
P.O. Box 52034, MS 8695
Phoenix, AZ 85072-2034
Mr. Eric Tharp
Los Angeles Department of Water & Power
Southern California Public Power Authority
P.O. Box 51111, Room 1255-C
Los Angeles, CA 90051-0100
Mr. James Ray
Public Service Company of New Mexico
2401 Aztec NE, MS Z110
Albuquerque, NM 87107-4224
Mr. Geoffrey M. Cook
Southern California Edison Company
5000 Pacific Coast Hwy. Bldg. D21
San Clemente, CA 92672
Mr. Robert Henry
Salt River Project
6504 East Thomas Road
Scottsdale, AZ 85251
Arizona Public Service Company -4-
Mr. Brian Almon
Public Utility Commission
William B. Travis Building
P.O. Box 13326
Austin, TX 78701-3326
Environmental Program Manager
City of Phoenix
Office of Environmental Programs
200 West Washington Street
Phoenix, AZ 85003
Mr. John C. Taylor
Director, Nuclear Generation
El Paso Electric Company
340 East Palm Lane, Suite 310
Phoenix, AZ 85004
Chief, Technological Hazards
Branch
FEMA Region IX
1111 Broadway, Suite 1200
Oakland, CA 94607-4052
Jake Lefman
Southern California Edison Company
5000 Pacific Coast Hwy, Bldg. D21
San Clemente, CA 92672
Arizona Public Service Company -5-
Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov)
Deputy Regional Administrator (Chuck.Casto@nrc.gov)
DRP Acting Director (Anton.Vegel@nrc.gov)
DRP Acting Deputy Director (Troy.Pruett@nrc.gov)
DRS Director (Roy.Caniano@nrc.gov)
DRS Acting Deputy Director (Jeff.Clark@nrc.gov)
Resident Inspector (Joseph.Bashore@nrc.gov)
Resident Inspector (Mica.Baquera@nrc.gov)
Branch Chief, DRP/D (Ryan.Lantz@nrc.gov)
PV Administrative Assistant (Regina.McFadden@nrc.gov)
Senior Project Engineer, DRP/D (Don.Allen@nrc.gov)
Project Engineer, DRP/D (Peter.Jayroe@nrc.gov)
Project Engineer, DRP/D (Zachary.Hollcraft@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Project Manager (Randy.Hall@nrc.gov)
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov)
Regional Counsel (Karla.Fuller@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov)
OEMail Resource
Inspection Reports/MidCycle and EOC Letters to the following:
ROPreports
Only inspection reports to the following:
DRS/TSB STA (Dale.Powers@nrc.gov)
OEDO RIV Coordinator (Margie.Kotzalas@nrc.gov)
Executive Technical Assistant (John.Giessner@nrc.gov)
SUNSI Review Completed: ___Y___ ADAMS: 7 Yes No Initials: ___MRY_
7 Publicly Available Non-Publicly Available Sensitive 7 Non-Sensitive
RI:EB1 C:PSB2
MYoung GWerner
MY GW
8/20/2010 8/23/2010
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
INSERVICE INSPECTION DOCUMENT REQUEST
Inspection Dates: October 4 through 15, 2010
Inspection Procedures: IP 71111.08 Inservice Inspection Activities
TI 2515/172 Reactor Coolant System Dissimilar Metal Butt Welds
Inspectors: Matthew Young, Reactor Inspector (Lead Inspector - Inservice
Inspection)
Theresa Buchanan, Reactor Inspector
Blake Rice, Reactor Inspector
A. Information Requested for the In-Office Preparation Week
The following information should be sent to the Region IV office in hard copy or
electronic format (ims.certrec.com preferred), in care of Matthew Young, by
September 27, 2010, to facilitate the selection of specific items that will be reviewed
during the onsite inspection week. The inspectors 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(s), 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 Inservice Inspection/Welding Programs and Schedule Information
a) A detailed schedule (including preliminary dates) of:
i) Nondestructive examinations planned for Class 1 & 2 systems and
containment, performed as part of your ASME,Section XI, risk informed
(if applicable), and augmented inservice inspection programs during the
upcoming outage
Provide a status summary of the nondestructive examination inspection
activities vs. the required inspection period percentages for this interval
by category per ASME,Section XI, IWX-2400. *Do not provide
separately if other documentation requested contains this information
ii) Reactor pressure vessel head examinations planned for the upcoming
outage
iii) Examinations planned for Alloy 82/182/600 components that are not
included in the Section XI scope (If applicable)
-1- Enclosure
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, 2, or 3 structures, systems, or
components)
b) A copy of ASME,Section XI, Code relief requests and associated NRC safety
evaluations applicable to the examinations identified above.
c) A list of nondestructive examination reports (ultrasonic, radiography, magnetic
particle, dye penetrate, Visual VT-1, VT-2, and VT-3), which have identified
relevant conditions on Code Class 1 & 2 systems since the beginning of the last
refueling outage. This should include the previousSection XI pressure test(s)
conducted during start up and any evaluations associated with the results of the
pressure tests. Also, include in the list the nondestructive examination reports
with relevant conditions in the reactor pressure vessel head penetration nozzles
that have been accepted for continued service. The list of nondestructive
examination reports should include a brief description of the structures, systems,
or components where the relevant condition was identified.
d) A list with a brief description (e.g., system, material, pipe size, weld number, and
nondestructive examinations 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.
e) 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.
f) Copy of any 10 CFR Part 21 reports applicable to your structures, systems, or
components within the scope of Section XI of the ASME Code that have been
identified since the beginning of the last refueling outage.
g) A list of any temporary noncode repairs in service (e.g., pinhole leaks).
h) Please provide copies of the most recent self-assessments for the inservice
inspection, welding, and Alloy 600 programs.
A.2 Reactor Pressure Vessel Head
This section will not be completed due to replacement of the reactor pressure vessel
head.
-2- Enclosure
A.3 Boric Acid Corrosion Control Program
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 shut down, please provide
documentation of containment walkdown inspections performed as part of the
boric acid corrosion control program.
c) Please provide a copy of the most recent self-assessment performed for the
boric acid corrosion control program.
A.4 Steam Generator Tube Inspections
a) A detailed schedule of:
i) Steam generator tube inspection, data analyses, and repair activities for
the upcoming outage (If occurring)
ii) Steam generator secondary side inspection activities for the upcoming
outage (if occurring)
b) Please provide a copy of your steam generator inservice 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
c) If you are planning on modifying your technical specifications such that they are
consistent with Technical Specification Task Force-449, please provide copies of
your correspondence with the NRC regarding deviations from the standard
technical specification.
d) Copy of steam generator history documentation given to vendors performing
Eddy Current testing of the steam generators during the upcoming outage.
e) Copy of steam generator Eddy Current data analyst guidelines and site validated
Eddy Current technique specification sheets. Additionally, please provide a copy
of the Electric Power Research Institute (EPRI), Appendix H, Eddy Current
technique specification sheets qualification records.
f) Identify and quantify any steam generator tube leakage experienced during the
previous operating cycle. Also provide documentation identifying which steam
-3- Enclosure
generator was leaking and corrective actions completed or planned for this
condition (If applicable).
g) Provide 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.).
h) Please provide copies of your most recent self assessments of the steam
generator monitoring, loose parts monitoring, and secondary side water
chemistry control programs.
i) Please also indicate where the primary, secondary, and resolution analyses are
scheduled to take place.
j) Please provide a summary of the scope of the steam generator tube
examinations, including examination methods such as bobbin, rotating pancake,
or plus point, and the percentage of tubes to be examined. *Do not provide
these documents separately if already included in other information requested.
A.5 Materials Reliability Program-139 Activities
a) A list of, with verification, that the baseline inspections of all applicable dissimilar
metal butt welds have been completed by July 31, 2010.
b) Verification that baseline inspection of hot leg and cold leg temperature dissimilar
metal butt welds have been included in the inspection program and that the
schedules for the baseline inspections are consistent with the baseline schedules
in Materials Reliability Program-139.
c) A list and schedule (examination dates) of all dissimilar metal butt weld
examinations planned for the upcoming refueling outage. If none are scheduled,
then data from previous examinations should be available for review.
d) A list and schedule for any welding to be performed on dissimilar metal butt
welds in the upcoming outage. If no welding will be performed, then records of
previous welding on dissimilar metal butt welds and postweld nondestructive
examination documentation.
e) A list and schedule of any stress improvement activities planned for the
upcoming refueling outage. If none are scheduled then have qualification reports
for any stress improvements previously performed.
f) Documentation and description of how the baseline and inservice inspection
specifications in Materials Reliability Program-139 are satisfied at your facility.
g) A list of weld locations controlled by Materials Reliability Program-139 which
includes the Materials Reliability Program-139 weld category, pre-mitigation
volumetric examination date, type of mitigation or stress improvement,
-4- Enclosure
post mitigation volumetric examination date, and plans for future Materials
Reliability Program-139 required examinations.
A.6 Additional Information Related to All Inservice Inspection Activities
a) A list with a brief description of inservice inspection, boric acid corrosion control
program, and steam generator-tube inspection related issues (e.g., condition
reports) entered into your corrective action program since the beginning of the
last refueling outage (for Unit 2). For example, a list based upon data base
searches using key words related to piping or steam generator tube degradation
such as: inservice inspection, ASME Code,Section XI, nondestructive
examination, cracks, wear, thinning, leakage, rust, corrosion, boric acid, or errors
in piping/steam generator tube examinations.
b) Please provide names and phone numbers for the following program leads:
Inservice inspection contacts (examination, planning)
Containment exams
Reactor pressure vessel head exams
Snubbers and supports
Repair and replacement program manager
Licensing contact
Site welding engineer
Boric acid corrosion control program
Steam generator inspection activities (site lead and vendor contact)
B. Information to be provided onsite to the inspector(s) at the entrance meeting
(October 4, 2010):
B.1 Inservice Inspection/Welding Programs and Schedule Information
a) Updated schedules for inservice inspection/nondestructive examination activities,
including steam generator tube inspections, planned welding activities, and
schedule showing contingency repair plans, if available.
b) For ASME, Code 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 used to fabricate the welds
-5- Enclosure
vi) Copies of procedure qualification records supporting the weld procedures
from B.1.b.v
vii) Copies of mechanical test reports identified in the procedure qualification
records 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 the
selected welds, including documentation that welder maintained
proficiency in the applicable welding processes specified in the weld
procedures (at least 6 months prior to the date of subject work)
xii) Copies of NDE personnel qualifications (VT, PT, UT, RT), as applicable
c) For the inservice inspection related corrective action issues selected by the
inspectors from Section A of this enclosure, provide a copy of the corrective
actions and supporting documentation.
d) For the nondestructive examination reports with relevant conditions on Code
Class 1 and 2 systems selected by the inspectors 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) most Current revision of the inservice inspection
program manual and plan for the Current interval.
f) For the nondestructive examinations selected by the inspectors from Section A of
this enclosure, provide copy of the nondestructive examination 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 qualification documentation of the specific
equipment to be used (e.g., ultrasonic unit, cables, and transducers including
serial numbers) and nondestructive examination personnel qualification records.
B.2 Reactor Pressure Vessel Head
This section will not be completed due to replacement of the reactor pressure vessel
head.
-6- Enclosure
B.3 Boric Acid Corrosion Control Program
a) Please provide boric acid walkdown 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 identify
specifically which known leaks, if any, have remained in service or will remain in
service as active leaks.
B.4 Steam Generator Tube Inspections
a) Copies of the examination technique specification sheets 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 steam generators.
c) Please provide a copy of the Eddy Current testing procedures used to perform
the steam generator tube inspections (specifically calibration and flaw
characterization/sizing procedures, etc.). Also include documentation for the
specific equipment to be used.
d) Please provide copies of your responses to NRC and industry operating
experience communications such as Generic Letters, Information Notices, etc.
(as applicable to steam generator tube inspections) *Do not provide these
documents separately if already included in other information requested such as
the degradation assessment.
e) List of corrective action documents generated by the vendor and/or site with
respect to steam generator inspection activities.
B.5 Codes and Standards
a) Ready access to (e.g., copies provided to the inspector(s) for use during the
inspection at the onsite 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 steam generator tube Eddy Current examination
-7- Enclosure
Inspector Contact Information:
Matthew Young Theresa Buchanan Blake Rice
Reactor Inspector Reactor Inspector Reactor Inspector
817-276-6545 817-276-6503 817-276-6563
matt.young@nrc.gov theresa.buchanan@nrc.gov blake.rice@nrc.gov
Mailing Address:
US NRC Region IV
Attn: Matthew Young
612 E. Lamar Blvd, Suite 400
Arlington, TX 76011
-8- Enclosure