ML110200305
| ML110200305 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 01/19/2011 |
| From: | Greg Werner NRC/RGN-IV/DRS/PSB-2 |
| To: | Conway J Pacific Gas & Electric Co |
| References | |
| IR-11-003 | |
| Download: ML110200305 (10) | |
See also: IR 05000323/2011003
Text
UNITED STATES
NUC LE AR RE G ULATO 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
January 19, 2011
John T. Conway
Senior Vice President and
Chief Nuclear Officer
Pacific Gas and Electric Company
77 Beale Street, B32
San Francisco, CA
SUBJECT: DIABLO CANYON POWER PLANT, UNIT 2 - NOTIFICATION OF INSPECTION
(NRC INTEGRATED INSPECTION REPORT 05000323/2011003) AND
REQUEST FOR INFORMATION
Dear Mr. Conway:
From May 9 through 20, 2011, reactor inspectors from the U.S. Nuclear Regulatory
Commissions (NRC) Region IV office will perform the baseline inservice inspection (ISI) at the
Diablo Canyon Power Plant Unit 2, using NRC Inspection Procedure 71111.08, Inservice
Inspection Activities. 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 by April 25, 2011, (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. McCoy 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 Wayne Sifre, lead inspector, at (817) 860-8193 (wayne.sifre@nrc.gov) or Isaac
Anchondo at (817) 860-8152 (isaac.anchondo@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
Pacific Gas and Electric Company -2-
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
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 (PARS) 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: 50-323
License: DPR-82
Enclosure:
Inservice Inspection Document Request
cc:
Sierra Club Santa Lucia Chapter
ATTN: Andrew Christie
P.O. Box 15755
San Luis Obispo, CA 93406
Jane Swanson
San Luis Obispo
Mothers for Peace
P.O. Box 3608
San Luis Obispo, CA 93403
James Grant, County Administrative Officer
San Luis Obispo County Board of
Supervisors
1055 Monterey Street, Suite D430
San Luis Obispo, CA 93408
Truman Burns\Robert Kinosian
California Public Utilities Commission
505 Van Ness Ave., Rm. 4102
San Francisco, CA 94102
Pacific Gas and Electric Company -3-
Jennifer Post, Esq.
Pacific Gas & Electric Co.
77 Beale Street, Room 2496
Mail Code B30A
San Francisco, CA 94120
Gary Butner
Chief, Radiologic Health Branch
California Department of Public Health 3
P.O. Box 997414 (MS 7610)
Sacramento, CA 95899-7414
The City Editor of
The Tribune
3825 South Higuera Street
P.O. Box 112
San Luis Obispo, CA 93406-0112
James D. Boyd, Commissioner
California Energy Commission
1516 Ninth Street (MS 31)
Sacramento, CA 95814
James R. Becker, Site Vice President
Pacific Gas and Electric Company
Diablo Canyon Nuclear Plant
P.O. Box 56, Mail Station 104/6/601
Avila Beach, CA 93424
Jennifer Tang
Field Representative
United States Senator Barbara Boxer
1700 Montgomery Street, Suite 240
San Francisco, CA 94111
Chief, Technological Hazards Branch
FEMA Region IX
1111 Broadway, Suite 1200
Oakland, CA 94607-4052
Pacific Gas and Electric Company -4-
Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov )
Deputy Regional Administrator (Art.Howell@nrc.gov )
DRP Director (Kriss.Kennedy@nrc.gov )
DRP Deputy Director (Troy.Pruett@nrc.gov )
DRS Director (Anton.Vegel@nrc.gov )
DRS Deputy Director (Vacant)
Senior Resident Inspector (Michael.Peck@nrc.gov )
Resident Inspector (Laura.Micewski@nrc.gov )
Acting Branch Chief, DRP/B (Don.Allen@nrc.gov )
Senior Project Engineer, DRP/B (Rick.Deese@nrc.gov )
Project Engineer, DRP/B (Greg.Tutak@nrc.gov )
Project Engineer, DRP/B (Nestor.Makris@nrc.gov )
DC Administrative Assistant (Agnes.Chan@nrc.gov )
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov )
Project Manager (Alan.Wang@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
OEDO RIV Coordinator (James.Trapp@nrc.gov )
DRS/TSB STA (Dale.Powers@nrc.gov )
R:_\REACTORS\DC\ 2011003 ISI RFI LTR-WS ADAMS ML
ADAMS: No ; Yes SUNSI Review Complete Reviewer Initials: WCS
- Publicly Available ; Non-Sensitive
Non-publicly Available Sensitive
RI:EB1 C:PSB2
W. Sifre G. Werner
1/18/11 1/19/11
/RA/ /RA/.
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
INSERVICE INSPECTION DOCUMENT REQUEST
Inspection Dates: May 9 through 20, 2011
Inspection Procedures: IP 71111.08, Inservice Inspection (ISI) Activities
Inspectors: Wayne Sifre, Senior Reactor Inspector (Lead Inspector - ISI)
Isaac A. Anchondo, 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 Wayne Sifre by April 25, 2011,
to facilitate the selection of specific items that will be reviewed during the onsite
inspection weeks. The inspectors will select specific items from the information
requested below and then request from your staff additional documents needed during
the onsite inspection weeks (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
inspectors, and provide subject documentation during the first day of the onsite
inspection. If you have any questions regarding this information request, please call the
inspectors as soon as possible.
A.1 ISI / 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)
iv) Examinations planned as part of your boric acid corrosion control
program (Mode 3 walkdowns, bolted connection walkdowns, etc.)
-1- Enclosure
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 penetrant, 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 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
-2- Enclosure
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.3 Steam Generator Tube Inspections
a) A detailed schedule of:
i) Steam generator secondary side inspection activities for the upcoming
outage.
b) Please provide a copy of your steam generator inservice inspection program and
plan. Please include a copy of the operational assessment from the 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 Traveler TSTF-449, Steam
Generator Tube Integrity, please provide copies of your correspondence with the
NRC regarding deviations from the standard technical specifications.
d) Identify and quantify any steam generator tube leakage experienced during the
previous operating cycle. Also provide documentation identifying which steam
generator was leaking and corrective actions completed or planned for this
condition (If applicable).
e) 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.).
f) Please provide copies of your most recent self-assessments of the steam
generator monitoring, loose parts monitoring, and secondary side water
chemistry control programs.
A.4 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.
-3- Enclosure
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 inspectors at the entrance meeting:
B.1 ISI/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 inspectors 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
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 radiographic testing was performed)
x) Copies of the preservice examination records for the selected welds
-4- Enclosure
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 nondestructive examination personnel qualifications (Visual
inspection, penetrant testing, ultrasonic testing, radiographic testing), 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) the 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 a 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 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.3 Steam Generator Tube Inspections
a) Copies of the examination technique specification sheets and associated
justification for any revisions.
-5- Enclosure
b) Copy of the guidance to be followed if a loose part or foreign material is identified
in the steam generators.
c) 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.
d) List of corrective action documents generated by the vendor and/or site with
respect to steam generator inspection activities.
B.4 Codes and Standards
a) Ready access to (i.e., copies provided to the inspectors 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.
Inspector Contact Information:
Senior Reactor Inspector Reactor Inspector
817-860-8193 817-860-8152
wayne.sifre@nrc.gov isaac.anchondo@nrc.gov
Mailing Address:
US NRC Region IV
Attn: Wayne Sifre
612 E. Lamar Blvd, Suite 400
Arlington, TX 76011
-6- Enclosure