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| number = ML11181A076
| number = ML11181A076
| issue date = 06/30/2011
| issue date = 06/30/2011
| title = Comanche Peak Nuclear Power Plant, Units 1 and 2 - Notification of Inspection (NRC Inspection Report 05000445/2011004, 05000446/2011004) and Request for Information
| title = Notification of Inspection (NRC Inspection Report 05000445/2011004, 05000446/2011004) and 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 = Flores R
| addressee name = Flores R
Line 14: Line 14:
| page count = 5
| page count = 5
}}
}}
See also: [[followed by::IR 05000445/2011004]]
See also: [[see also::IR 05000445/2011004]]


=Text=
=Text=
{{#Wiki_filter:
{{#Wiki_filter:UNITED STATES
[[Issue date::June 30, 2011]]
                                  NUCLEAR REGULATORY COMMISSION
                                                    REGION IV
                                          612 EAST LAMAR BLVD, SUITE 400
                                            ARLINGTON, TEXAS 76011-4125
                                              June 30, 2011
Rafael Flores, Senior Vice President
  and Chief Nuclear Officer
Luminant Generation Company LLC
Comanche Peak Nuclear Power Plant
P.O. Box 1002
Glen Rose, TX 76043
SUBJECT:       COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 -
                NOTIFICATION OF INSPECTION (NRC INSPECTION REPORT
                05000445/2011004; 05000446/2011004) AND REQUEST FOR INFORMATION
Dear Mr. Flores:
On August 15, 2011, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite
portion of the Gas Accumulation Management in Emergency Core Cooling, Decay Heat
Removal, and Containment Spray Systems Temporary Instruction at your Comanche Peak
Nuclear Power Plant, Units 1 and 2. This inspection will be performed in accordance with NRC
Temporary Instruction (TI) 2515/177.
Experience has shown that this inspection is resource intensive both for the NRC inspectors
and your staff. In order to minimize the impact to your onsite resources and to ensure a
productive inspection, we have enclosed a request for documents needed for this inspection.
The documents have been divided into two groups.
* The first group lists information necessary for our initial inspection scoping and in-office
    preparation activities. This information should be separated by information request number,
    especially if provided electronically (e.g., folder with the information request number). This
    information should be available to the inspector no later than August 1, 2011. Upon review of
    these documents, the inspectors will select additional documentation for review upon arrival.
    By August 10, 2011, the inspector will communicate the initial selected samples.
* The second group of documents requested is needed to support our onsite inspection
    activities. This set of documents should be available to the inspector on August 15, 2011. It
    is also requested that corrective action documents and responses to questions developed
    during the inspection be provided to the inspector as the documents are generated.
We have discussed the schedule for these inspection activities with your staff and understand
that our regulatory contact for this inspection will be Gary Merka of your licensing organization.
If there are any questions about this inspection or the materia! requested, please contact the
inspector, Matt Young, at 817-276-6545 or by email at '-'-==:.J:-==~=~='


SUBJECT: COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 -NOTIFICATION OF INSPECTION (NRC INSPECTION REPORT 05000445/2011004; 05000446/2011004) AND REQUEST FOR INFORMATION
                                                -2-
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 Code of Federal Regulations, Title 10, Part 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 Publicly Available Records (PARS)
component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web
site at                                              (the Public Electronic Reading Room).
                                              Thomas R. Farnholtz, Chief
                                              Engineering Branch 1
                                              Division of Reactor Safety
Dockets: 50-445; 50-446
Licenses: NPF-87; NPF-89
Enclosure: Management of Gas Accumulation in Emergency Core Cooling, Decay Heat
Removal, and Containment Spray Systems Temporary Instruction Document Request
cc w/encl:
Distribution via ListServ for Comanche Peak


==Dear Mr. Flores:==
    MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
On August 15, 2011, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite portion of the Gas Accumulation Management in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems Temporary Instruction at your Comanche Peak Nuclear Power Plant, Units 1 and 2. This inspection will be performed in accordance with NRC Temporary Instruction (TI) 2515/177. Experience has shown that this inspection is resource intensive both for the NRC inspectors and your staff. In order to minimize the impact to your onsite resources and to ensure a productive inspection, we have enclosed a request for documents needed for this inspection. The documents have been divided into two groups. * The first group lists information necessary for our initial inspection scoping and in-office preparation activities. This information should be separated by information request number, especially if provided electronically (e.g., folder with the information request number). This information should be available to the inspector no later than August 1, 2011. Upon review of these documents, the inspectors will select additional documentation for review upon arrival. By August 10, 2011, the inspector will communicate the initial selected samples. * The second group of documents requested is needed to support our onsite inspection activities. This set of documents should be available to the inspector on August 15, 2011. It is also requested that corrective action documents and responses to questions developed during the inspection be provided to the inspector as the documents are generated. We have discussed the schedule for these inspection activities with your staff and understand that our regulatory contact for this inspection will be Gary Merka of your licensing organization. If there are any questions about this inspection or the materia! requested, please contact the inspector, Matt Young, at 817-276-6545 or by email at
  HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSTRUCTION
-2 -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 Code of Federal Regulations, Title 10, Part 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 Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at (the Public Electronic Reading Room). Dockets: 50-445; 50-446 Licenses: NPF-87; NPF-89 Thomas R. Farnholtz, Chief Engineering Branch 1 Division of Reactor Safety
                                      DOCUMENT REQUEST
        inspection Report:                     05000445/2011004; 05000446/2011004
        On-site Inspection Dates:              August 15-19, 2011
        Inspection Procedure:                  TI 2515/177, "Management of Gas Accumulation in
                                                Emergency Core Cooling, Decay Heat Removal, and
                                                Containment Spray Systems"
        Lead InspectorlTeam Leader:            Matt Young
                                                817 -276-6545
                                                Matt.young@nrc.gov
The following information should be sent to the Region IV office in hard copy or electronic
format (ims.certrec.com or compact disc, preferred), in care of Matt Young, to facilitate the
selection of specific items that will be reviewed during the onsite inspection week. The
inspector will select specific items from the information requested below and then request from
your staff additional documents needed during the onsite inspection weeks. Also, we request
that you categorize the documents in your response with the numbered list below. 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.
I. Information Requested By August 1, 2011
    1. List of corrective action program documents (with a short description) associated with
        Generic Letter (GL) 2008-01, voids in piping, and pressure transients for the previous
        three years.
    2. List of changes (with a short description and tracking number) to the final safety analysis
        report (FSAR), technical specifications, technical specification bases, and technical
        requirements manual associated with the resolution of GL 2008-01.
    3. List of calculations associated with GL 2008-01, including calculations that have been
        changed or created in response to GL 2008-01 (with a short description of the
        calculation and the change).
    4. List (with a short description) of gas intrusion mechanisms that apply to the plant and the
        affected system locations (e.g. identify the source, conditions, and expected void
        locations).
    5. List of the suction piping sections identified as susceptible to gas accumulation (the list
        should identify the corresponding system).
                                              - 1-                                       Enclosure


===Enclosure:===
6. List of the discharge piping sections identified as susceptible to gas accumulation (the
Management of Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems Temporary Instruction Document Request cc w/encl: Distribution via ListServ for Comanche Peak MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSTRUCTION DOCUMENT REQUEST inspection Report: On-site Inspection Dates: Inspection Procedure: Lead InspectorlTeam Leader: 05000445/2011004; 05000446/2011004 August 15-19, 2011 TI 2515/177, "Management of Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" Matt Young 817 -276-6545 Matt.young@nrc.gov The following information should be sent to the Region IV office in hard copy or electronic format (ims.certrec.com or compact disc, preferred), in care of Matt Young, to facilitate the selection of specific items that will be reviewed during the onsite inspection week. The inspector will select specific items from the information requested below and then request from your staff additional documents needed during the onsite inspection weeks. Also, we request that you categorize the documents in your response with the numbered list below. 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. I. Information Requested By August 1, 2011 1. List of corrective action program documents (with a short description) associated with Generic Letter (GL) 2008-01, voids in piping, and pressure transients for the previous three years. 2. List of changes (with a short description and tracking number) to the final safety analysis report (FSAR), technical specifications, technical specification bases, and technical requirements manual associated with the resolution of GL 2008-01. 3. List of calculations associated with GL 2008-01, including calculations that have been changed or created in response to GL 2008-01 (with a short description of the calculation and the change). 4. List (with a short description) of gas intrusion mechanisms that apply to the plant and the affected system locations (e.g. identify the source, conditions, and expected void locations). 5. List of the suction piping sections identified as susceptible to gas accumulation (the list should identify the corresponding system). -1 -Enclosure 6. List of the discharge piping sections identified as susceptible to gas accumulation (the list should identify the corresponding system). 7. Copies of isometric drawings of the emergency core cooling, residual heat removal, and containment spray systems (hard-copies are preferred). 8. Copies of piping and instrumentation diagrams (P&IDs) of the emergency core cooling, residual heat removal, and containment spray systems (hard-copies are preferred). 9. Copies of program documents and procedures developed to implement the resolution of GL 2008-01. 10. List of actions that were completed in response to GL 2008-01. 11. Copies of the modification packages for hardware modifications as part of the resolution of GL 2008-01. 12. Design basis documents of the emergency core cooling, residual heat removal, and containment spray systems. 13. Design basis documents of keep-full systems of the emergency core cooling, residual heat removal, and containment spray systems. 14. System walkdown reports associated with the resolution of GL 2008-01. 15. If applicable, provide a list of inaccessible locations where plant walkdowns of the emergency core cooling, residual heat removal, and containment spray systems have not been completed. Include an explanation of why each area is considered inaccessible. 16. Copies of surveillance procedures associated with the resolution of GL 2008-01 and the results of the last two surveillances for the emergency core cooling, residual heat removal, and containment spray systems. 17. Copies of procedures used for detecting and determining void volumes. 18. Copies of procedures used for filling and venting. 19. Copies of trends of periodic venting results. 20. Copies of the engineering evaluations performed for all identified voids in the past three years. 21. Basis for the void acceptance criteria (e.g. calculation). If applicable, provide the justification for any deviation from the void acceptance criteria established by the Office of Nuclear Reactor Regulation (NRR). 22. Copy of any void transport analyses. -2 -Enclosure 23. Copy of vortexing calculations associated with systems under the scope of GL 2008-01. 24. Copies of self-assessments associated with the implementation of the GL 2008-01 program. II. Information Requested By August 15,2011 25. Copies of the selected corrective action program documents. 26. Copies of the selected licensing and design basis document changes. 27. Copies of the selected calculations. 28. Copies of training documents that ensure that personnel are aware of gas-related concerns. 29. Copies of corrective action program implementing procedures. 30. Electronic copies of the current technical specifications, technical specification bases, final safety analysis report, and technical requirements manual. -3 -Enclosure
    list should identify the corresponding system).
7.   Copies of isometric drawings of the emergency core cooling, residual heat removal, and
    containment spray systems (hard-copies are preferred).
8. Copies of piping and instrumentation diagrams (P&IDs) of the emergency core cooling,
    residual heat removal, and containment spray systems (hard-copies are preferred).
9. Copies of program documents and procedures developed to implement the resolution of
    GL 2008-01.
10. List of actions that were completed in response to GL 2008-01.
11. Copies of the modification packages for hardware modifications as part of the resolution
    of GL 2008-01.
12. Design basis documents of the emergency core cooling, residual heat removal, and
    containment spray systems.
13. Design basis documents of keep-full systems of the emergency core cooling, residual
    heat removal, and containment spray systems.
14. System walkdown reports associated with the resolution of GL 2008-01.
15. If applicable, provide a list of inaccessible locations where plant walkdowns of the
    emergency core cooling, residual heat removal, and containment spray systems have
    not been completed. Include an explanation of why each area is considered
    inaccessible.
16. Copies of surveillance procedures associated with the resolution of GL 2008-01 and the
    results of the last two surveillances for the emergency core cooling, residual heat
    removal, and containment spray systems.
17. Copies of procedures used for detecting and determining void volumes.
18. Copies of procedures used for filling and venting.
19. Copies of trends of periodic venting results.
20. Copies of the engineering evaluations performed for all identified voids in the past three
    years.
21. Basis for the void acceptance criteria (e.g. calculation). If applicable, provide the
    justification for any deviation from the void acceptance criteria established by the Office
    of Nuclear Reactor Regulation (NRR).
22. Copy of any void transport analyses.
                                          -2-                                         Enclosure
 
    23. Copy of vortexing calculations associated with systems under the scope of GL 2008-01.
    24. Copies of self-assessments associated with the implementation of the GL 2008-01
        program.
II. Information Requested By August 15,2011
    25. Copies of the selected corrective action program documents.
    26. Copies of the selected licensing and design basis document changes.
    27. Copies of the selected calculations.
    28. Copies of training documents that ensure that personnel are aware of gas-related
        concerns.
    29. Copies of corrective action program implementing procedures.
    30. Electronic copies of the current technical specifications, technical specification bases,
        final safety analysis report, and technical requirements manual.
                                              -3-                                         Enclosure
}}
}}

Latest revision as of 17:59, 12 November 2019

Notification of Inspection (NRC Inspection Report 05000445/2011004, 05000446/2011004) and Request for Information
ML11181A076
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 06/30/2011
From: Thomas Farnholtz
Region 4 Engineering Branch 1
To: Flores R
Luminant Generation Co
References
IR-11-004
Download: ML11181A076 (5)
v • d • e


See also: IR 05000445/2011004

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

612 EAST LAMAR BLVD, SUITE 400

ARLINGTON, TEXAS 76011-4125

June 30, 2011

Rafael Flores, Senior Vice President

and Chief Nuclear Officer

Luminant Generation Company LLC

Comanche Peak Nuclear Power Plant

P.O. Box 1002

Glen Rose, TX 76043

SUBJECT: COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 -

NOTIFICATION OF INSPECTION (NRC INSPECTION REPORT

05000445/2011004; 05000446/2011004) AND REQUEST FOR INFORMATION

Dear Mr. Flores:

On August 15, 2011, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite

portion of the Gas Accumulation Management in Emergency Core Cooling, Decay Heat

Removal, and Containment Spray Systems Temporary Instruction at your Comanche Peak

Nuclear Power Plant, Units 1 and 2. This inspection will be performed in accordance with NRC

Temporary Instruction (TI) 2515/177.

Experience has shown that this inspection is resource intensive both for the NRC inspectors

and your staff. In order to minimize the impact to your onsite resources and to ensure a

productive inspection, we have enclosed a request for documents needed for this inspection.

The documents have been divided into two groups.

  • The first group lists information necessary for our initial inspection scoping and in-office

preparation activities. This information should be separated by information request number,

especially if provided electronically (e.g., folder with the information request number). This

information should be available to the inspector no later than August 1, 2011. Upon review of

these documents, the inspectors will select additional documentation for review upon arrival.

By August 10, 2011, the inspector will communicate the initial selected samples.

  • The second group of documents requested is needed to support our onsite inspection

activities. This set of documents should be available to the inspector on August 15, 2011. It

is also requested that corrective action documents and responses to questions developed

during the inspection be provided to the inspector as the documents are generated.

We have discussed the schedule for these inspection activities with your staff and understand

that our regulatory contact for this inspection will be Gary Merka of your licensing organization.

If there are any questions about this inspection or the materia! requested, please contact the

inspector, Matt Young, at 817-276-6545 or by email at '-'-==:.J:-==~=~='

-2-

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 Code of Federal Regulations, Title 10, Part 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 Publicly Available Records (PARS)

component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web

site at (the Public Electronic Reading Room).

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Dockets: 50-445; 50-446

Licenses: NPF-87; NPF-89

Enclosure: Management of Gas Accumulation in Emergency Core Cooling, Decay Heat

Removal, and Containment Spray Systems Temporary Instruction Document Request

cc w/encl:

Distribution via ListServ for Comanche Peak

MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY

HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSTRUCTION

DOCUMENT REQUEST

inspection Report: 05000445/2011004; 05000446/2011004

On-site Inspection Dates: August 15-19, 2011

Inspection Procedure: TI 2515/177, "Management of Gas Accumulation in

Emergency Core Cooling, Decay Heat Removal, and

Containment Spray Systems"

Lead InspectorlTeam Leader: Matt Young

817 -276-6545

Matt.young@nrc.gov

The following information should be sent to the Region IV office in hard copy or electronic

format (ims.certrec.com or compact disc, preferred), in care of Matt Young, to facilitate the

selection of specific items that will be reviewed during the onsite inspection week. The

inspector will select specific items from the information requested below and then request from

your staff additional documents needed during the onsite inspection weeks. Also, we request

that you categorize the documents in your response with the numbered list below. 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.

I. Information Requested By August 1, 2011

1. List of corrective action program documents (with a short description) associated with

Generic Letter (GL) 2008-01, voids in piping, and pressure transients for the previous

three years.

2. List of changes (with a short description and tracking number) to the final safety analysis

report (FSAR), technical specifications, technical specification bases, and technical

requirements manual associated with the resolution of GL 2008-01.

3. List of calculations associated with GL 2008-01, including calculations that have been

changed or created in response to GL 2008-01 (with a short description of the

calculation and the change).

4. List (with a short description) of gas intrusion mechanisms that apply to the plant and the

affected system locations (e.g. identify the source, conditions, and expected void

locations).

5. List of the suction piping sections identified as susceptible to gas accumulation (the list

should identify the corresponding system).

- 1- Enclosure

6. List of the discharge piping sections identified as susceptible to gas accumulation (the

list should identify the corresponding system).

7. Copies of isometric drawings of the emergency core cooling, residual heat removal, and

containment spray systems (hard-copies are preferred).

8. Copies of piping and instrumentation diagrams (P&IDs) of the emergency core cooling,

residual heat removal, and containment spray systems (hard-copies are preferred).

9. Copies of program documents and procedures developed to implement the resolution of

GL 2008-01.

10. List of actions that were completed in response to GL 2008-01.

11. Copies of the modification packages for hardware modifications as part of the resolution

of GL 2008-01.

12. Design basis documents of the emergency core cooling, residual heat removal, and

containment spray systems.

13. Design basis documents of keep-full systems of the emergency core cooling, residual

heat removal, and containment spray systems.

14. System walkdown reports associated with the resolution of GL 2008-01.

15. If applicable, provide a list of inaccessible locations where plant walkdowns of the

emergency core cooling, residual heat removal, and containment spray systems have

not been completed. Include an explanation of why each area is considered

inaccessible.

16. Copies of surveillance procedures associated with the resolution of GL 2008-01 and the

results of the last two surveillances for the emergency core cooling, residual heat

removal, and containment spray systems.

17. Copies of procedures used for detecting and determining void volumes.

18. Copies of procedures used for filling and venting.

19. Copies of trends of periodic venting results.

20. Copies of the engineering evaluations performed for all identified voids in the past three

years.

21. Basis for the void acceptance criteria (e.g. calculation). If applicable, provide the

justification for any deviation from the void acceptance criteria established by the Office

of Nuclear Reactor Regulation (NRR).

22. Copy of any void transport analyses.

-2- Enclosure

23. Copy of vortexing calculations associated with systems under the scope of GL 2008-01.

24. Copies of self-assessments associated with the implementation of the GL 2008-01

program.

II. Information Requested By August 15,2011

25. Copies of the selected corrective action program documents.

26. Copies of the selected licensing and design basis document changes.

27. Copies of the selected calculations.

28. Copies of training documents that ensure that personnel are aware of gas-related

concerns.

29. Copies of corrective action program implementing procedures.

30. Electronic copies of the current technical specifications, technical specification bases,

final safety analysis report, and technical requirements manual.

-3- Enclosure

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