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| issue date = 04/20/2016
| issue date = 04/20/2016
| title = Notification of NRC Component Design Bases Inspection (05000528/2016007; 05000529/2016007; 05000530/2016007) and Initial Request for Information
| title = Notification of NRC Component Design Bases Inspection (05000528/2016007; 05000529/2016007; 05000530/2016007) and Initial Request for Information
| author name = Farnholtz T R
| author name = Farnholtz T
| author affiliation = NRC/RGN-IV/DRS/EB-1
| author affiliation = NRC/RGN-IV/DRS/EB-1
| addressee name = Edington R K
| addressee name = Edington R
| addressee affiliation = Arizona Public Service Co
| addressee affiliation = Arizona Public Service Co
| docket = 05000528, 05000529, 05000530
| docket = 05000528, 05000529, 05000530
Line 14: Line 14:
| page count = 8
| page count = 8
}}
}}
See also: [[followed by::IR 05000528/2016007]]
See also: [[see also::IR 05000528/2016007]]


=Text=
=Text=
{{#Wiki_filter:UNITED STATES
{{#Wiki_filter:UNITED STATES
NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD. ARLINGTON, TX 76011-4511
                              NUCLEAR REGULATORY COMMISSION
  April 20, 2016  
                                                REGION IV
                                          1600 E. LAMAR BLVD.
                                        ARLINGTON, TX 76011-4511
                                            April 20, 2016
Mr. Randall K. Edington
Mr. Randall K. Edington
Executive Vice President Nuclear/CNO  
Executive Vice President Nuclear/CNO
Arizona Public Service Company  
Arizona Public Service Company
P.O. Box 52034, MS 7602
P.O. Box 52034, MS 7602
Phoenix, AZ 85072-2034  
Phoenix, AZ 85072-2034
SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -
              NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION
              (05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL
              REQUEST FOR INFORMATION
Dear Mr. Edington:
On July 18, 2016, the U.S. Nuclear Regulatory Commission (NRC) will begin a triennial baseline
Component Design Bases Inspection at the Palo Verde Generating Station. A seven-person
team will perform this inspection using NRC Inspection Procedure 71111.21, Component
Design Bases Inspection.
The inspection focuses on components and operator actions that have high risk and low design
margins. The samples reviewed during this inspection will be identified during an information
gathering visit and during the subsequent in-office preparation week. In addition, a number of
operating experience issues will also be selected for review.
The inspection will include an information gathering site visit by the team leader and a senior
reactor analyst, and 3-weeks of onsite inspection by the team. The inspection will consist of
five NRC inspectors and two contractors, of which six will focus on engineering and one on
operations. The current inspection schedule is as follows:
        Onsite Information Gathering Visit: July 18 - 22, 2016
        Preparation Week: July 25 - 29, 2016
        Onsite Weeks: August 1 - 5, 15 - 19, and August 29 - September 2, 2016.
The purpose of the information gathering visit is to meet with members of your staff to identify
potential risk-significant components and operator actions. The lead inspector will also request
a tour of the plant with members of your operations staff and probabilistic safety assessment
staff. During the onsite weeks, several days of time will be needed on the plant-referenced
simulator in order to facilitate the development of operator action-based scenarios. Additional


SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 - NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION
R. Edington                                -2-
(05000528/2016007; 05000529/2016007; 05000530/2016007)
information and documentation needed to support the inspection will be identified during the
AND INITIAL REQUEST FOR INFORMATION
inspection, including interviews with engineering managers, engineers, and probabilistic safety
Dear Mr. Edington:
assessment staff.
Our experience with these inspections has shown that they are extremely resource intensive,
On July 18, 2016, the U.S. Nuclear Regulatory Commission (NRC) w
both for the NRC inspectors and the licensee staff. In order to minimize the inspection impact
ill begin a triennial baseline Component Design Bases Inspection at the Palo Verde Generating Station. A seven-person
on the site and to ensure a productive inspection, we have enclosed a request for information
needed for the inspection. The request has been divided into two groups. The first group lists
information necessary for the information gathering visit and for general preparation. This
information should be available to the regional office no later than July 11, 2016. Insofar as
possible, this information should be provided electronically to the lead inspector. Since the
inspection will be concentrated on high risk/low margin components, calculations associated
with your list of high risk components should be available to review during the information
gathering visit to assist in our selection of components based on available design margin.
The second group of documents requested lists information necessary to aid the inspection
team in tracking issues identified as a result of the inspection. It is requested that this
information be provided to the lead inspector as the information is generated during the
inspection. An additional request will be made by the team during the preparation week once
the specific components have been selected. Additional requests by inspectors will also be
made throughout all three onsite weeks for specific documents needed to complete the review
of that component/selection. 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. In order to facilitate the inspection, we
request that a contact individual be assigned to each inspector to ensure information requests,
questions, and concerns are addressed in a timely manner.
The lead inspector for this inspection is Wayne Sifre. We understand that our licensing
engineer contact for this inspection is Mr. Dave Heckman. If there are any questions about the
inspection or the requested materials, please contact the lead inspector by telephone at
817-200-1193 or by e-mail at Wayne.Sifre@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
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 will be
made available electronically for public inspection in the NRC Public Document Room or from
the Publicly Available Records (PARS) component of NRCs document system (ADAMS).


team will perform this inspection using NRC Inspection Procedure 71111.21, "Component Design Bases Inspection."
R. Edington                          -3-
The inspection focuses on components and operator actions that have high risk and low design
ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the
margins.  The samples reviewed during this inspection will be identified during an information
Public Electronic Reading Room).
gathering visit and during the subsequent in-office preparation week. In addition, a number of  
                                          Sincerely,
operating experience issues will also be selected for review. 
                                          /RA/
The inspection will include an information gathering site visit by the team leader and a senior
                                          Thomas R. Farnholtz, Chief
reactor analyst, and 3-weeks of onsite inspection by the team.  The inspection will consist of five NRC inspectors and two contractors, of which six
                                          Engineering Branch 1
will focus on engineering and one on operations.  The current inspection schedule is as follows:  
                                          Division of Reactor Safety
Docket Nos: 50-528; 50-529; 50-530
License Nos: NPF-41; NPF-51; NPF-74
Enclosure: Component Design Bases
  Inspection Request for Information


Onsite Information Gathering Visit: July 18 - 22, 2016 Preparation Week:  July 25 - 29, 2016  
                                  Initial Request for Information
Onsite Weeks: August 1 - 5, 15 - 19, and August 29 - September 2, 2016.  
                              Component Design Bases Inspection
                              Palo Verde Nuclear Generating Station
The purpose of the information gathering visit is to meet with members of your staff to identify potential risk-significant components and operator actions. The lead inspector will also request a tour of the plant with members of your operations staff and probabilistic safety assessment staff. During the onsite weeks, several days of time will be needed on the plant-referenced
Inspection Report:                05000528/2016007, 05000529/2016007, 05000530/2016007
simulator in order to facilitate the development of operator action-based scenarios. Additional 
Information Gathering Dates:     July 18 - 22, 2016
 
Inspection Dates:                 August 1 - 5, 2016, August 15 - 19, 2016,
                                  August 29 - September 2, 2016
Inspection Procedure:            IP 71111.21, Component Design Bases Inspection
 
Lead Inspector:                  Wayne Sifre, Senior Reactor Inspector
R. Edington - 2 -  
I.    Information Requested Prior to Information Gathering Visit (July 18, 2016)
      The following information (Section I of this enclosure) should be sent to the Region IV
information and documentation needed to support the inspection will be identified during the inspection, including interviews with engineering managers, engineers, and probabilistic safety assessment staff.
      office in hard copy or electronic format (Certrec IMS preferred), to the attention of Wayne
      Sifre by July 11, 2016, to facilitate the reduction in the items to be selected for a final list
      during the preparation week July 25, 2016. The inspection team will finalize its sample
      selections during the prep week and will provide an additional information request with
      specific items by sample. This information shall be made available by the first day of the
      onsite portion of the inspection. The specific items selected from the lists shall be
      available and ready for review on the day indicated in this request. *Please provide
      requested documentation electronically in pdf files, Excel, or other searchable formats,
      if possible. The information should contain descriptive names, and be indexed and
      hyperlinked to facilitate ease of use. Information in lists should contain enough
      information to be easily understood by someone who has knowledge of pressurized
      water reactor technology. If requested documents are large and/or only hard copy
      formats are available, please inform the inspector(s), and provide subject documentation
      during the first day of the onsite inspection.
            1. An Excel spreadsheet of equipment basic events (with definitions) including
                importance measures sorted by risk achievement worth (RAW) and Fussell-
                Vesely (FV) from your internal events probabilistic risk assessment (PRA).
                Include basic events with RAW value of 1.3 or greater.
            2. A list of the top 50 cut-sets from your PRA.
            3. Copies of PRA system notebooks, and the latest PRA summary document.
            4. An excel spreadsheet of PRA human action basic events or risk ranking of
                operator actions from your site specific PSA sorted by RAW and FV. Provide
                copies of your human reliability worksheets for these items.
                                                  -1-                                      Enclosure


5. If you have an external events or fire PSA model, provide the information
Our experience with these inspections has shown that they are extremely resource intensive, both for the NRC inspectors and the licensee staff.
    requested in items 1-4 for external events and fire.
In order to minimize the inspection impact on the site and to ensure a productive inspection, we have enclosed a request for information needed for the inspection. The request has been divided into two groups. The first group lists information necessary for the information gathering visit and for general preparation. This
6. Any pre-existing evaluation or list of components and associated calculations
information should be available to the regional office no later than July 11, 2016. Insofar as
    with low design margins.
possible, this information should be provided electronically to the lead inspector.  Since the
7. A list of high risk maintenance rule systems/components and functions; based on
inspection will be concentrated on high risk/low margin components, calculations associated with your list of high risk components should be available to review during the information gathering visit to assist in our selection of components based on available design margin.
    engineering or expert panel judgment.
8. A list of operating experience evaluations for the last 2 years.
The second group of documents requested lists information necessary to aid the inspection team in tracking issues identified as a result of the inspection. It is requested that this information be provided to the lead inspector as the information is generated during the inspection. An additional request will be made by the team during the preparation week once
9. A list of all time-critical operator actions in procedures.
the specific components have been selected. Additional requests by inspectors will also be made throughout all three onsite weeks for specific documents needed to complete the review
10. A list of permanent and temporary modifications sorted by component identified
of that component/selection.  It is important that all of these documents are up to date and  
    in Item 1.
complete in order to minimize the number of additional documents requested during the preparation and/or the onsite portions of the inspection. In order to facilitate the inspection, we request that a contact individual be assigned to each inspector to ensure information requests,  
11. A list of current operator work arounds/burdens.
questions, and concerns are addressed in a timely manner.  
12. A list of the design calculations, which provide the design margin information for
    components included in Item 1. (Calculations should be available during the
    information gathering visit).
13. List of root cause evaluations associated with component failures or design
    issues initiated/completed in the last 5 years.
14. A copy of the current management and engineering organizational charts.
15. A copy of the Palo Verde Nuclear Generating Station IPEEE, if available
    electronically.
16. A list of any common-cause failures of components in the last 3 years.
17. An electronic copy of the Design Bases Documents.
18. An electronic copy of the System Health notebooks.
19. A copy of any internal/external self-assessments and associated corrective
    action documents generated in preparation for the inspection.
20. A copy of engineering/operations related audits completed in the last 2 years.
21. A list of motor operated valves (MOVs) in the program, design margin and risk
    ranking.
22. A list of air operated valves (AOVs) in the valve program, design margin and risk
    ranking.
23. Structure, system, and components in the Maintenance Rule (a)(1) category.
                                      -2-


            24. Site top 10 issues list, if available.
The lead inspector for this inspection is Wayne Sifre. We understand that our licensing engineer contact for this inspection is Mr. Dave Heckman.
            25. Procedures used to accomplish operator actions associated with the basic
  If there are any questions about the inspection or the requested materials, please contact the lead inspector by telephone at
                events in your PRA.
            26. A list of licensee contacts for the inspection team with pager or phone numbers.
            27. Electronic copies of the Technical Specifications, Technical Specifications Bases,
                and the Updated Final Safety Analysis Report.
II.    Information Requested to be provided throughout the inspection.
        1. Copies of any corrective action documents generated as a result of the teams
            questions or queries during this inspection.
        2. Copies of the list of questions submitted by the team members and the
            status/resolution of the information requested (provide daily during the inspection to
            each team member).
Inspector Contact Information:
Wayne Sifre                              Eric Stamm                  Jim Drake
Senior Reactor Inspector                Senior Reactor Inspector    Senior Reactor Inspector
817-200-1193                            404-997-4575                817-200-1558
Wayne.Sifre@nrc.gov                      Eric.Stamm@nrc.gov          James.Drake@nrc.gov
Shiattin Makor                          Chad Stott
Reactor Inspector                        Reactor Inspector
817-200-1507                            817-200-1526
Shiattin.Makor@nrc.gov                  Chad.Stott@nrc.gov
Mailing Address:
U.S. NRC, Region IV
Attn: Wayne Sifre
1600 East Lamar Blvd.
Arlington, TX 76011-4511
                                                  -3-


817-200-1193 or by e-mail at Wayne.Sifre@nrc.gov. 


   
  ML16111B331
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 O
  SUNSI Review          ADAMS          Publicly Available      Non-Sensitive Keyword:
ffice of Management and Budget, control number 3150-0011.  The NRC may not conduct or sponsor, and a person is not required to
  By: WSifre               Yes No     Non-Publicly Available  Sensitive     NRC-002
respond to, a request for information or an information collection requirement unless the
OFFICE       DRS/EB1   C:EB1
requesting document displays a currently valid Office of Management and Budget control
NAME         WSifre     TFarnholtz
 
SIGNATURE /RA/         /RA/
number.  In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter will be
DATE         4/19/16   4/20/16
made 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). 
Letter to Randall K. Edington from Thomas Farnholtz, dated April 20, 2016
SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -
 
              NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION
              (05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL
 
              REQUEST FOR INFORMATION
R. Edington - 3 -
Electronic distribution by RIV:
Regional Administrator (Marc.Dapas@nrc.gov)
ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)
  Sincerely,    /RA/     Thomas R. Farnholtz, Chief
DRP Director (Troy.Pruett@nrc.gov)
Engineering Branch 1
DRP Deputy Director (Ryan.Lantz@nrc.gov)
Division of Reactor Safety
DRS Director (Anton.Vegel@nrc.gov)
  Docket Nos:  50-528; 50-529; 50-530
DRS Deputy Director (Jeff.Clark@nrc.gov)
License Nos:  NPF-41; NPF-51; NPF-74
Senior Resident Inspector (Charles.Peabody@nrc.gov)
 
Resident Inspector (David.You@nrc.gov)
Resident Inspector (Dustin.Reinert@nrc.gov)
Enclosure:  Component Design Bases  Inspection Request for Information               
PV Administrative Assistant (Yvonne.Dubay@nrc.gov)
- 1 - Enclosure
Branch Chief, DRP/D (Jeffrey.Josey@nrc.gov)
Initial Request for Information
Project Engineer, DRP/D (Jim.Melfi@nrc.gov)
Component Design Bases Inspection Palo Verde Nuclear Generating Station
Project Engineer, DRP/D (Jan.Tice@nrc.gov)
 
Public Affairs Officer (Victor.Dricks@nrc.gov)
Inspection Report:  05000528/2016007, 05000529/2016007, 05000530/2016007
Project Manager (Siva.Lingam@nrc.gov)
 
Team Leader, DRS/IPAT (Thomas.Hipschman@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov)
Information Gathering Dates: July 18 - 22, 2016
ACES (R4Enforcement.Resource@nrc.gov)
Inspection Dates: August 1 - 5, 2016, August 15 - 19, 2016,  August 29 - September 2, 2016
Regional Counsel (Karla.Fuller@nrc.gov)
Technical Support Assistant (Loretta.Williams@nrc.gov)
Inspection Procedure: IP 71111.21, "Component Design Bases Inspection"
Senior Congressional Affairs Officer (Jenny.Weil@nrc.gov)
Lead Inspector: Wayne Sifre, Senior Reactor Inspector
RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)
 
RIV/ETA: OEDO (Jeremy.Bowen@nrc.gov)
I. Information Requested Prior to Information Gathering Visit (July 18, 2016)
  The following information (Section I of this enclosure) should be sent to the Region IV
office in hard copy or electronic format (Certrec IMS preferred), to the attention of Wayne
Sifre by July 11, 2016, to facilitate the reduction in the items to be selected for a final list
during the preparation week July 25, 2016.  The inspection team will finalize its sample
selections during the prep week and will provide an additional information request with specific items by sample.  This information shall be made available by the first day of the onsite portion of the inspection.  The specific items selected from the lists shall be
available and ready for review on the day indicated in this request.  *Please provide requested documentation electronically in "pdf" files, Excel, or other searchable formats, if possible.  The information should contain descriptive names, and be indexed and hyperlinked to facilitate ease of use.  Information in "lists" should contain enough information to be easily understood by someone who has knowledge of pressurized water reactor technology.  If requested documents are large and/or only hard copy
 
formats are available, please inform the inspector(s), and provide subject documentation during the first day of the onsite inspection. 
1. An Excel spreadsheet of equipment basic events (with definitions) including
importance measures sorted by risk
achievement worth (RAW) and Fussell-
Vesely (FV) from your internal events probabilistic risk assessment (PRA). Include basic events with RAW value of 1.3 or greater. 
2. A list of the top 50 cut-sets from your PRA. 
3. Copies of PRA "system notebooks," and the latest PRA summary document.
4. An excel spreadsheet of PRA human action basic events or risk ranking of operator actions from your site specific PSA sorted by RAW and FV.  Provide copies of your human reliability worksheets for these items. 
 
  - 2 - 5. If you have an external events or fire PSA model, provide the information requested in items 1-4 for external events and fire.
6. Any pre-existing evaluation or list of components and associated calculations
with low design margins.
7. A list of high risk maintenance rule systems/components and functions; based on engineering or expert panel judgment.
8. A list of operating experience evaluations for the last 2 years. 
9. A list of all time-critical operator actions in procedures.
10. A list of permanent and temporary modifications sorted by component identified
in Item 1. 
11. A list of current "operator work arounds/burdens."
12. A list of the design calculations, which provide the design margin information for components included in Item 1.  (Calculations should be available during the
information gathering visit). 
13. List of root cause evaluations associated with component failures or design issues initiated/completed in the last 5 years. 
14. A copy of the current management and engineering organizational charts. 
15. A copy of the Palo Verde Nuclear Generating Station IPEEE, if available electronically.
16. A list of any common-cause failures of components in the last 3 years.
17. An electronic copy of the Design Bases Documents.
18. An electronic copy of the System Health notebooks.
19. A copy of any internal/external self-assessments and associated corrective action documents generated in preparation for the inspection.
20. A copy of engineering/operations related audits completed in the last 2 years.
21. A list of motor operated valves (MOVs) in the program, design margin and risk
ranking.  22. A list of air operated valves (AOVs) in the valve program, design margin and risk
ranking.  23. Structure, system, and components in the Maintenance Rule (a)(1) category. 
  - 3 -  24. Site top 10 issues list, if available.
25. Procedures used to accomplish operator actions associated with the basic events in your PRA.
26. A list of licensee contacts for the inspection team with pager or phone numbers.
27. Electronic copies of the Technical Specifications, Technical Specifications Bases, and the Updated Final Safety Analysis Report.
II. Information Requested to be provided throughout the inspection.
  1. Copies of any corrective action documents generated as a result of the team's questions or queries during this inspection.
2. Copies of the list of questions submitted by the team members and the status/resolution of the information requested (provide daily during the inspection to each team member).
Inspector Contact Information:
 
Wayne Sifre    Eric Stamm    Jim Drake Senior Reactor Inspector  Senior Reactor Inspector Senior Reactor Inspector 817-200-1193    404-997-4575  817-200-1558 
Wayne.Sifre@nrc.gov  Eric.Stamm@nrc.gov  James.Drake@nrc.gov
 
Shiattin Makor    Chad Stott Reactor Inspector  Reactor Inspector 817-200-1507    817-200-1526
Shiattin.Makor@nrc.gov  Chad.Stott@nrc.gov
 
Mailing Address:
 
U.S. NRC, Region IV Attn:  Wayne Sifre
1600 East Lamar Blvd.
Arlington, TX  76011-4511
 
 
   
R. Edington - 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/      Thomas R. Farnholtz, Chief
  Engineering Branch 1
Division of Reactor Safety
Docket Nos:  50-528; 50-529; 50-530 License Nos:  NPF-41; NPF-51; NPF-74
 
Enclosure:  Component Design Bases  Inspection Request for Information
   
 
   
 
 
   
ADAMS ACCESSION NUMB
ER:  ML16111B331  SUNSI Review By: WSifre  
ADAMS Yes    No Publicly Available  Non-Publicly Available  Non-Sensitive Sensitive Keyword: NRC-002 OFFICE DRS/EB1 C:EB1     NAME WSifre TFarnholtz     SIGNATURE /RA/ /RA/     DATE 4/19/16 4/20/16     OFFICIAL RECORD COPY
 
  Letter to Randall K. Edington from Thomas Farnholtz, dated April 20, 2016  
SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 - NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION (05000528/2016007; 05000529/2016007; 05000530/2016007)
AND INITIAL REQUEST FOR INFORMATION  
Electronic distribution by RIV:  
Regional Administrator (Marc.Dapas@nrc.gov) Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)  
DRP Director (Troy.Pruett@nrc.gov)  
DRP Deputy Director (Ryan.Lantz@nrc.gov) DRS Director (Anton.Vegel@nrc.gov) DRS Deputy Director (Jeff.Clark@nrc.gov)
Senior Resident Inspector (Charles.Peabody@nrc.gov)  
 
Resident Inspector (David.You@nrc.gov)  
Resident Inspector (Dustin.Reinert@nrc.gov)  
PV Administrative Assistant (Yvonne.Dubay@nrc.gov) Branch Chief, DRP/D (Jeffrey.Josey@nrc.gov) Project Engineer, DRP/D (Jim.Melfi@nrc.gov)  
Project Engineer, DRP/D (Jan.Tice@nrc.gov)  
Public Affairs Officer (Victor.Dricks@nrc.gov)  
 
Project Manager (Siva.Lingam@nrc.gov)  
Team Leader, DRS/IPAT (Thomas.Hipschman@nrc.gov) RITS Coordinator (Marisa.Herrera@nrc.gov)  
 
ACES (R4Enforcement.Resource@nrc.gov)  
Regional Counsel (Karla.Fuller@nrc.gov)  
Technical Support Assistant (Loretta.Williams@nrc.gov)  
Senior Congressional Affairs Officer (Jenny.Weil@nrc.gov) RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov) RIV/ETA: OEDO (Jeremy.Bowen@nrc.gov)
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Latest revision as of 21:48, 30 October 2019

Notification of NRC Component Design Bases Inspection (05000528/2016007; 05000529/2016007; 05000530/2016007) and Initial Request for Information
ML16111B331
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 04/20/2016
From: Thomas Farnholtz
Region 4 Engineering Branch 1
To: Edington R
Arizona Public Service Co
References
IR 2016007
Download: ML16111B331 (8)


See also: IR 05000528/2016007

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 E. LAMAR BLVD.

ARLINGTON, TX 76011-4511

April 20, 2016

Mr. Randall K. Edington

Executive Vice President Nuclear/CNO

Arizona Public Service Company

P.O. Box 52034, MS 7602

Phoenix, AZ 85072-2034

SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -

NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION

(05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL

REQUEST FOR INFORMATION

Dear Mr. Edington:

On July 18, 2016, the U.S. Nuclear Regulatory Commission (NRC) will begin a triennial baseline

Component Design Bases Inspection at the Palo Verde Generating Station. A seven-person

team will perform this inspection using NRC Inspection Procedure 71111.21, Component

Design Bases Inspection.

The inspection focuses on components and operator actions that have high risk and low design

margins. The samples reviewed during this inspection will be identified during an information

gathering visit and during the subsequent in-office preparation week. In addition, a number of

operating experience issues will also be selected for review.

The inspection will include an information gathering site visit by the team leader and a senior

reactor analyst, and 3-weeks of onsite inspection by the team. The inspection will consist of

five NRC inspectors and two contractors, of which six will focus on engineering and one on

operations. The current inspection schedule is as follows:

Onsite Information Gathering Visit: July 18 - 22, 2016

Preparation Week: July 25 - 29, 2016

Onsite Weeks: August 1 - 5, 15 - 19, and August 29 - September 2, 2016.

The purpose of the information gathering visit is to meet with members of your staff to identify

potential risk-significant components and operator actions. The lead inspector will also request

a tour of the plant with members of your operations staff and probabilistic safety assessment

staff. During the onsite weeks, several days of time will be needed on the plant-referenced

simulator in order to facilitate the development of operator action-based scenarios. Additional

R. Edington -2-

information and documentation needed to support the inspection will be identified during the

inspection, including interviews with engineering managers, engineers, and probabilistic safety

assessment staff.

Our experience with these inspections has shown that they are extremely resource intensive,

both for the NRC inspectors and the licensee staff. In order to minimize the inspection impact

on the site and to ensure a productive inspection, we have enclosed a request for information

needed for the inspection. The request has been divided into two groups. The first group lists

information necessary for the information gathering visit and for general preparation. This

information should be available to the regional office no later than July 11, 2016. Insofar as

possible, this information should be provided electronically to the lead inspector. Since the

inspection will be concentrated on high risk/low margin components, calculations associated

with your list of high risk components should be available to review during the information

gathering visit to assist in our selection of components based on available design margin.

The second group of documents requested lists information necessary to aid the inspection

team in tracking issues identified as a result of the inspection. It is requested that this

information be provided to the lead inspector as the information is generated during the

inspection. An additional request will be made by the team during the preparation week once

the specific components have been selected. Additional requests by inspectors will also be

made throughout all three onsite weeks for specific documents needed to complete the review

of that component/selection. 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. In order to facilitate the inspection, we

request that a contact individual be assigned to each inspector to ensure information requests,

questions, and concerns are addressed in a timely manner.

The lead inspector for this inspection is Wayne Sifre. We understand that our licensing

engineer contact for this inspection is Mr. Dave Heckman. If there are any questions about the

inspection or the requested materials, please contact the lead inspector by telephone at

817-200-1193 or by e-mail at Wayne.Sifre@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

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 will be

made available electronically for public inspection in the NRC Public Document Room or from

the Publicly Available Records (PARS) component of NRCs document system (ADAMS).

R. Edington -3-

ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the

Public Electronic Reading Room).

Sincerely,

/RA/

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket Nos: 50-528; 50-529; 50-530

License Nos: NPF-41; NPF-51; NPF-74

Enclosure: Component Design Bases

Inspection Request for Information

Initial Request for Information

Component Design Bases Inspection

Palo Verde Nuclear Generating Station

Inspection Report: 05000528/2016007, 05000529/2016007, 05000530/2016007

Information Gathering Dates: July 18 - 22, 2016

Inspection Dates: August 1 - 5, 2016, August 15 - 19, 2016,

August 29 - September 2, 2016

Inspection Procedure: IP 71111.21, Component Design Bases Inspection

Lead Inspector: Wayne Sifre, Senior Reactor Inspector

I. Information Requested Prior to Information Gathering Visit (July 18, 2016)

The following information (Section I of this enclosure) should be sent to the Region IV

office in hard copy or electronic format (Certrec IMS preferred), to the attention of Wayne

Sifre by July 11, 2016, to facilitate the reduction in the items to be selected for a final list

during the preparation week July 25, 2016. The inspection team will finalize its sample

selections during the prep week and will provide an additional information request with

specific items by sample. This information shall be made available by the first day of the

onsite portion of the inspection. The specific items selected from the lists shall be

available and ready for review on the day indicated in this request. *Please provide

requested documentation electronically in pdf files, Excel, or other searchable formats,

if possible. The information should contain descriptive names, and be indexed and

hyperlinked to facilitate ease of use. Information in lists should contain enough

information to be easily understood by someone who has knowledge of pressurized

water reactor technology. If requested documents are large and/or only hard copy

formats are available, please inform the inspector(s), and provide subject documentation

during the first day of the onsite inspection.

1. An Excel spreadsheet of equipment basic events (with definitions) including

importance measures sorted by risk achievement worth (RAW) and Fussell-

Vesely (FV) from your internal events probabilistic risk assessment (PRA).

Include basic events with RAW value of 1.3 or greater.

2. A list of the top 50 cut-sets from your PRA.

3. Copies of PRA system notebooks, and the latest PRA summary document.

4. An excel spreadsheet of PRA human action basic events or risk ranking of

operator actions from your site specific PSA sorted by RAW and FV. Provide

copies of your human reliability worksheets for these items.

-1- Enclosure

5. If you have an external events or fire PSA model, provide the information

requested in items 1-4 for external events and fire.

6. Any pre-existing evaluation or list of components and associated calculations

with low design margins.

7. A list of high risk maintenance rule systems/components and functions; based on

engineering or expert panel judgment.

8. A list of operating experience evaluations for the last 2 years.

9. A list of all time-critical operator actions in procedures.

10. A list of permanent and temporary modifications sorted by component identified

in Item 1.

11. A list of current operator work arounds/burdens.

12. A list of the design calculations, which provide the design margin information for

components included in Item 1. (Calculations should be available during the

information gathering visit).

13. List of root cause evaluations associated with component failures or design

issues initiated/completed in the last 5 years.

14. A copy of the current management and engineering organizational charts.

15. A copy of the Palo Verde Nuclear Generating Station IPEEE, if available

electronically.

16. A list of any common-cause failures of components in the last 3 years.

17. An electronic copy of the Design Bases Documents.

18. An electronic copy of the System Health notebooks.

19. A copy of any internal/external self-assessments and associated corrective

action documents generated in preparation for the inspection.

20. A copy of engineering/operations related audits completed in the last 2 years.

21. A list of motor operated valves (MOVs) in the program, design margin and risk

ranking.

22. A list of air operated valves (AOVs) in the valve program, design margin and risk

ranking.

23. Structure, system, and components in the Maintenance Rule (a)(1) category.

-2-

24. Site top 10 issues list, if available.

25. Procedures used to accomplish operator actions associated with the basic

events in your PRA.

26. A list of licensee contacts for the inspection team with pager or phone numbers.

27. Electronic copies of the Technical Specifications, Technical Specifications Bases,

and the Updated Final Safety Analysis Report.

II. Information Requested to be provided throughout the inspection.

1. Copies of any corrective action documents generated as a result of the teams

questions or queries during this inspection.

2. Copies of the list of questions submitted by the team members and the

status/resolution of the information requested (provide daily during the inspection to

each team member).

Inspector Contact Information:

Wayne Sifre Eric Stamm Jim Drake

Senior Reactor Inspector Senior Reactor Inspector Senior Reactor Inspector

817-200-1193 404-997-4575 817-200-1558

Wayne.Sifre@nrc.gov Eric.Stamm@nrc.gov James.Drake@nrc.gov

Shiattin Makor Chad Stott

Reactor Inspector Reactor Inspector

817-200-1507 817-200-1526

Shiattin.Makor@nrc.gov Chad.Stott@nrc.gov

Mailing Address:

U.S. NRC, Region IV

Attn: Wayne Sifre

1600 East Lamar Blvd.

Arlington, TX 76011-4511

-3-

ML16111B331

SUNSI Review ADAMS Publicly Available Non-Sensitive Keyword:

By: WSifre Yes No Non-Publicly Available Sensitive NRC-002

OFFICE DRS/EB1 C:EB1

NAME WSifre TFarnholtz

SIGNATURE /RA/ /RA/

DATE 4/19/16 4/20/16

Letter to Randall K. Edington from Thomas Farnholtz, dated April 20, 2016

SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -

NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION

(05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL

REQUEST FOR INFORMATION

Electronic distribution by RIV:

Regional Administrator (Marc.Dapas@nrc.gov)

Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)

DRP Director (Troy.Pruett@nrc.gov)

DRP Deputy Director (Ryan.Lantz@nrc.gov)

DRS Director (Anton.Vegel@nrc.gov)

DRS Deputy Director (Jeff.Clark@nrc.gov)

Senior Resident Inspector (Charles.Peabody@nrc.gov)

Resident Inspector (David.You@nrc.gov)

Resident Inspector (Dustin.Reinert@nrc.gov)

PV Administrative Assistant (Yvonne.Dubay@nrc.gov)

Branch Chief, DRP/D (Jeffrey.Josey@nrc.gov)

Project Engineer, DRP/D (Jim.Melfi@nrc.gov)

Project Engineer, DRP/D (Jan.Tice@nrc.gov)

Public Affairs Officer (Victor.Dricks@nrc.gov)

Project Manager (Siva.Lingam@nrc.gov)

Team Leader, DRS/IPAT (Thomas.Hipschman@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

ACES (R4Enforcement.Resource@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

Technical Support Assistant (Loretta.Williams@nrc.gov)

Senior Congressional Affairs Officer (Jenny.Weil@nrc.gov)

RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)

RIV/ETA: OEDO (Jeremy.Bowen@nrc.gov)