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| issue date = 03/28/2011
| issue date = 03/28/2011
| title = Notification of Inspection - (Inspection Report 05000416-11-004) and Request for Information
| title = Notification of Inspection - (Inspection Report 05000416-11-004) 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 = Douet J R
| addressee name = Douet J
| addressee affiliation = Entergy Operations, Inc
| addressee affiliation = Entergy Operations, Inc
| docket = 05000416
| docket = 05000416
Line 14: Line 14:
| page count = 5
| page count = 5
}}
}}
See also: [[followed by::IR 05000416/2011004]]
See also: [[see also::IR 05000416/2011004]]


=Text=
=Text=
{{#Wiki_filter:James R. Douet Site Vice President
{{#Wiki_filter:UNITED STATES
Operations
                                  NUCLEAR REGULATORY COMMISSIOI"..J
Entergy Operations, Inc. Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150 UNITED STATES NUCLEAR REGULATORY
                                                    REGION IV
COMMISSIOI"..J
                                          612 EAST LAMAR BLVD, SUITE 400
REGION IV 612 EAST LAMAR BLVD, SUITE 400 ARliNGTON, TEXAS 76011-4125
                                          ARliNGTON, TEXAS 76011-4125
March 28, 2011 SUBJECT: GRAND GULF NUCLEAR STATION-NOTIFICATION  
                                            March 28, 2011
OF INSPECTION (INSPECTION  
James R. Douet
REPORT 05000416/2011004)  
Site Vice President Operations
AND REQUEST FOR INFORMATION  
Entergy Operations, Inc.
Dear Mr. Douet: On June 27,2011, the NRC will begin the on-site portion of the Gas Accumulation  
Grand Gulf Nuclear Station
Management  
P.O. Box 756
in Emergency  
Port Gibson, MS 39150
Core Cooling, Decay Heat Removal, and Containment  
SUBJECT:       GRAND GULF NUCLEAR STATION- NOTIFICATION OF INSPECTION
Spray Systems Temporary  
                (INSPECTION REPORT 05000416/2011004) AND REQUEST FOR
Instruction  
                INFORMATION
at your Grand Gulf Nuclear Station. These inspections  
Dear Mr. Douet:
will be performed  
On June 27,2011, the NRC will begin the on-site portion of the Gas Accumulation Management
in accordance  
in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems Temporary
with NRC Temporary'  
Instruction at your Grand Gulf Nuclear Station. These inspections will be performed in
Instruction (TI) 2515/177.  
accordance with NRC Temporary' Instruction (TI) 2515/177.
Experience  
Experience has shown that this inspection is resource intensive, both for the NRC inspectors
has shown that this inspection  
and your staff. In order to minimize the impact to your onsite resources and to ensure a
is resource intensive, both for the NRC inspectors  
productive inspection, we have enclosed a request for documents needed for this inspection.
and your staff. In order to minimize the impact to your onsite resources  
The documents have been divided into two groups.
and to ensure a productive  
*   The first group iists information necessary for our initial inspection scoping and in-office
inspection, we have enclosed a request for documents  
    preparation activities. This information should be separated by information request number,
needed for this inspection.  
    especially if provided electronically (e.g., folder with the information request number). This
The documents  
    information should be available to the inspector no later than June 20, 2011. Upon review of
have been divided into two groups. * The first group iists information  
    these documents, the inspectors will select additional documentation for review upon arrival.
necessary  
    By June 23, 2011, the inspector will communicate the initial selected samples.
for our initial inspection  
*   The second group of documents requested is needed to support our onsite inspection
scoping and in-office  
    activities. This set of documents shouid be avaiiabie to the inspector on june 27, 20;;. it is
preparation  
    also requested that corrective action documents and responses to questions developed
activities.  
    during the inspection be provided to the inspector as the documents are generated.
This information  
We have discussed the schedule for these inspection activities with your staff and understand
should be separated  
that our regulatory contact for this inspection will be Mike Larson of your licensing organization.
by information  
If there are any questions about this inspection or the material requested, please contact the
request number, especially  
inspector, Wayne Sifre, at 817-860-8193 or by email at =~~:.:..==.:.;~=
if provided electronically (e.g., folder with the information  
This letter does not contain new or amended information collection requirements subject to the
request number). This information  
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection
should be available  
requirements were approved by the Office of Management and Budget, control number
to the inspector  
3150-0011. The NRC may not conduct or sponsor, and a person is not required to respond to,
no later than June 20, 2011. Upon review of these documents, the inspectors  
 
will select additional  
        Operations, Inc.                         -2-
documentation  
a request for information or an information collection requirement unless the requesting
for review upon arrival. By June 23, 2011, the inspector  
document displays a currently valid Office of Management and Budget control number.
will communicate  
In accordance with Code of Federal Regulations, Title 10, Part 2.390 of the NRC's Rules of
the initial selected samples. * The second group of documents  
Practice, a copy of this letter and its enclosure will be available electronically for public
requested  
inspection in the NRC Public Document Room or from the Publicly Available Records (PARS)
is needed to support our onsite inspection  
component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web
activities.  
site at                                               (the Public Electronic Reading Room).
This set of documents  
                                                Sincerely,
shouid be avaiiabie  
                                              -I.(?(2
to the inspector  
                                              Thomas R. Farnholtz, Chief
on june 27, 20;;. it is also requested  
                                                Engineering Branch 1
that corrective  
                                                Division of Reactor Safety
action documents  
Docket: 50-416
and responses  
License: NPF-29
to questions  
Enclosure:     MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING,
developed  
                DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS
during the inspection  
                TEMPORARY INSTRUCTION DOCUMENT REQUEST
be provided to the inspector  
cc w/encl:
as the documents  
Distribution via ListServ for Grand Gulf Nuclear Station
are generated.  
 
We have discussed  
    MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
the schedule for these inspection  
                              CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION
activities  
                                        DOCUMENT REQUEST
with your staff and understand  
Inspection Report:                05000416/2011004
that our regulatory  
Inspection Dates:                June 27-July 1, 2011
contact for this inspection  
Inspection Procedure:            TI 2515/177, "Management of Gas Accumulation in Emergency
will be Mike Larson of your licensing  
                                  Core Cooling, Decay Heat Removal, and Containment Spray
organization.  
                                  Systems"
If there are any questions  
Inspector:                      Wayne C. Sifre, Senior Reactor Inspector
about this inspection  
                                (817) 860-8193
or the material requested, please contact the inspector, Wayne Sifre, at 817-860-8193  
The following information should be sent to the Region IV office in hard copy or electronic
or by email at  
format (ims.certrec.com or compact disc, preferred), in care of Wayne Sifre, to facilitate the
This letter does not contain new or amended information  
selection of specific items that will be reviewed during the onsite inspection week. The
collection  
inspector will select specific items from the information requested below and then request from
requirements  
your staff additional documents needed during the onsite inspection weeks. Also, we request
subject to the Paperwork  
that you categorize the documents in your response with the numbered list below. Please
Reduction  
provide requested documentation electronically if possible. If requested documents are large
Act of 1995 (44 U.S.C. 3501 et seq.). Existing information  
and only hard copy formats are available, please inform the inspector(s), and provide subject
collection  
documentation during the first day of the onsite inspection. If you have any questions regarding
requirements  
this information request, please call the inspector as soon as possible.
were approved by the Office of Management  
I. Information Requested By June 20, 2011
and Budget, control number 3150-0011.  
    1. List of corrective action program documents (with a short description) associated with
The NRC may not conduct or sponsor, and a person is not required to respond to,
        GL 2008-01, voids in piping, and pressure transients for the previous three years.
Operations, Inc. -2 -a request for information  
    2.   List of changes (with a short description and tracking number) to the final safety
or an information  
        evaluation report (FSAR), technical specifications, technical specification bases, and
collection  
        technical requirement manual associated with the resolution of GL 2008-01.
requirement  
    3.   List of calculations associated with GL 2008-01, including calculations that have been
unless the requesting  
        changed or created in response to GL 2008-01 (with a short description of the
document displays a currently  
        calculation and the change).
valid Office of Management  
    4.   List (with a short description) of gas intrusion mechanisms that apply to the plant and the
and Budget control number. In accordance  
        affected system locations (e.g. identify the source, conditions, and expected void
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  
        locations).
will be available  
    5.   List of the suction piping sections identified as susceptible to gas accumulation (the list
electronically  
        should identify the corresponding system).
for public inspection  
                                              - 1-                                       Enclosure
in the NRC Public Document Room or from the Publicly Available  
 
Records (PARS) component  
MANAGEMENT                 ACCUMULATION IN EMERGENCY                     COOLING, DECAY
of NRC's document system (ADAMS). ADAMS is accessible  
      REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION
from the NRC Web site at (the Public Electronic  
                                    DOCUMENT REQUEST
Reading Room). Sincerely, -I.(?(2 Thomas R. Farnholtz, Chief Engineering  
6. List of the discharge piping sections identified as susceptible to gas accumulation (the
Branch 1 Division of Reactor Safety Docket: 50-416 License: NPF-29 Enclosure:  
    list should identify the corresponding system).
cc w/encl: MANAGEMENT
7. Copies of isometric drawings of the High Pressure Core Spray, Low Pressure Core
OF GAS ACCUMULATION  
    Spray, and Residual Heat Removal systems (hard-copies are preferred).
IN EMERGENCY  
8. Copies of piping and instrumentation diagrams (P&IDs) of the High Pressure Core
CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT  
    Spray, Low Pressure Core Spray, and Residual Heat Removal systems (hard-copies are
SPRAY SYSTEMS TEMPORARY  
    preferred).
INSTRUCTION  
9. Copies of program documents and procedures developed to implement the resolution of
DOCUMENT REQUEST Distribution  
    GL 2008-01.
via ListServ for Grand Gulf Nuclear Station
10. List of actions that were completed in response to GL 2008-01.
MANAGEMENT  
11. Copies of the modification packages for hardware modifications as part of the resolution
OF GAS ACCUMULATION  
    of GL 2008-01.
IN EMERGENCY  
12. Design basis documents of the High Pressure Core Spray, Low Pressure Core Spray,
CORE COOLING, DECAY Inspection
    and Residual Heat Removal systems.
Report: Inspection
13. Design basis documents of keep-full systems of the High Pressure Core Spray, Low
Dates: Inspection
    Pressure Core Spray, and Residual Heat Removal systems.
Procedure:
14. System vvalkdovvn reports associated Vvith the resolution of GL 2008-01.
Inspector:
15. If applicable, provide a list of inaccessible locations where plant walkdowns of the High
CONTAINMENT
    Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal systems
SPRAY SYSTEMS TEMPORARY  
    have not been completed. Include an explanation of why each area is considered
INSPECTION  
    inaccessible.
DOCUMENT REQUEST 05000416/2011004  
16. Copies of surveillance procedures associated with the resolution of GL 2008-01 and the
June 27-July 1, 2011 TI 2515/177, "Management  
    results of the last two surveillances for the High Pressure Core Spray, Low Pressure
of Gas Accumulation  
    Core Spray, and Residual Heat Removal systems.
in Emergency  
17. Copies of procedures used for detecting and determining void volumes.
Core Cooling, Decay Heat Removal, and Containment  
18. Copies of procedures used for filling and venting.
Spray Systems" Wayne C. Sifre, Senior Reactor Inspector  
19. Copies of trends of periodic venting results.
(817) 860-8193 The following  
20. Copies of the engineering evaluations performed for all identified voids.
information  
                                          -2-                                       Enclosure
should be sent to the Region IV office in hard copy or electronic  
 
format (ims.certrec.com  
      MANAGEMENT                                 GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
or compact disc, preferred), in care of Wayne Sifre, to facilitate  
      HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS
the selection  
                                                                                    DOCUMENT REQUEST
of specific items that will be reviewed during the onsite inspection  
      21. Basis for the void acceptance criteria (e.g. calculation). If applicable, provide the
week. The inspector  
              justification for any deviation from the void acceptance criteria established by the Office
will select specific items from the information  
              of Nuclear Reactor Regulation (NRR).
requested  
      22. Copy of any void transport analyses.
below and then request from your staff additional  
      23. Copy of vortexing calculations associated with systems under the scope of GL 2008-01.
documents  
      24. Copies of self-assessments associated with the implementation of the GL 2008-01
needed during the onsite inspection  
              program.
weeks. Also, we request that you categorize  
II. Information Requested By June 27, 2011
the documents  
      25. Copies of the selected corrective action program documents.
in your response with the numbered list below. Please provide requested  
      26. Copies of the selected licensing and design basis document changes.
documentation  
      27. Copies of the selected calculations.
electronically  
      28. Copies of training documents that ensure that personnel are aware of gas-related
if possible.  
              concerns.
If requested  
      t:-v *  .....,vtJ1""'...., "f
documents  
      ?Q r"n;Q'"                 V I I""rrQI"ti\lQ
are large and only hard copy formats are available, please inform the inspector(s), and provide subject documentation  
                                      V V I 1 _ _ "-. W - ~I"t;"n
during the first day of the onsite inspection.  
                                                          """"....,             nr"f"Ir~m
If you have any questions  
                                                                    ... I V ' I 1"'" _~I _ I I I imnlQmQntinf"l
regarding  
                                                                                                  I I I I t - ' , _ I I I _ I .".1 ':::1 nrnl"""r!llr""c:
this information  
                                                                                                                                        f""" _____ * _ v .
request, please call the inspector  
      30. Electronic copies of the current technical specifications, technical specification bases,
as soon as possible.  
              final safety analysis report, and technical report manual.
I. Information  
Inspector Contact Information:
Requested  
US NRC Region IV
By June 20, 2011 1. List of corrective  
LH+n' \I\I",\/no.
action program documents (with a short description)  
/\1.1.11.
associated  
                              Qifro.
with GL 2008-01, voids in piping, and pressure transients  
          VVCA]I''''''' \..,1111""
for the previous three years. 2. List of changes (with a short description  
612 E. Lamar Blvd., Suite 400
and tracking number) to the final safety evaluation  
Arlington, TX 76011-4125
report (FSAR), technical  
                                                                                                -3-                                                       Enclosure
specifications, technical specification  
bases, and technical  
requirement  
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
MANAGEMENT  
ACCUMULATION  
IN EMERGENCY  
COOLING, DECAY REMOVAL, AND CONTAINMENT  
SPRAY SYSTEMS TEMPORARY  
INSPECTION  
DOCUMENT REQUEST 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 High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal systems (hard-copies  
are preferred).  
8. Copies of piping and instrumentation  
diagrams (P&IDs) of the High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal 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 High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal systems. 13. Design basis documents  
of keep-full  
systems of the High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal systems. 14. System vvalkdovvn  
reports associated  
Vvith the resolution  
of GL 2008-01. 15. If applicable, provide a list of inaccessible  
locations  
where plant walkdowns  
of the High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal 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 High Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal 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. -2 -Enclosure
MANAGEMENT  
GAS ACCUMULATION  
IN EMERGENCY  
CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT  
SPRAY SYSTEMS DOCUMENT REQUEST 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.  
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 June 27, 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.  
?Q r"n;Q'" "f I""rrQI"ti\lQ  
imnlQmQntinf"l
nrnl"""r!llr""c:
t:-v * .....,vtJ1""'...., VI VVI 1 __ "-. W -""""...., ... IV' I 1"'" _III III It-',_III_I
.".1 ':::1 f""" _____ * _v. 30. Electronic  
copies of the current technical  
specifications, technical  
specification  
bases, final safety analysis report, and technical  
report manual. Inspector  
Contact Information:  
US NRC Region IV LH+n' \I\I",\/no.  
Qifro. /\1.1.11.  
VVCA]I'''''''  
\..,1111"" 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 -3 -Enclosure
}}
}}

Latest revision as of 02:32, 13 November 2019

Notification of Inspection - (Inspection Report 05000416-11-004) and Request for Information
ML110880669
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 03/28/2011
From: Thomas Farnholtz
Region 4 Engineering Branch 1
To: Douet J
Entergy Operations
References
IR-11-004
Download: ML110880669 (5)


See also: IR 05000416/2011004

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSIOI"..J

REGION IV

612 EAST LAMAR BLVD, SUITE 400

ARliNGTON, TEXAS 76011-4125

March 28, 2011

James R. Douet

Site Vice President Operations

Entergy Operations, Inc.

Grand Gulf Nuclear Station

P.O. Box 756

Port Gibson, MS 39150

SUBJECT: GRAND GULF NUCLEAR STATION- NOTIFICATION OF INSPECTION

(INSPECTION REPORT 05000416/2011004) AND REQUEST FOR

INFORMATION

Dear Mr. Douet:

On June 27,2011, the NRC will begin the on-site portion of the Gas Accumulation Management

in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems Temporary

Instruction at your Grand Gulf Nuclear Station. These inspections 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 iists 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 June 20, 2011. Upon review of

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

By June 23, 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 shouid be avaiiabie to the inspector on june 27, 20;;. 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 Mike Larson of your licensing organization.

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

inspector, Wayne Sifre, at 817-860-8193 or by email at =~~:.:..==.:.;~=

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,

Operations, Inc. -2-

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).

Sincerely,

-I.(?(2

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket: 50-416

License: NPF-29

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 Grand Gulf Nuclear Station

MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY

CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION

DOCUMENT REQUEST

Inspection Report: 05000416/2011004

Inspection Dates: June 27-July 1, 2011

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

Core Cooling, Decay Heat Removal, and Containment Spray

Systems"

Inspector: Wayne C. Sifre, Senior Reactor Inspector

(817) 860-8193

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 Wayne Sifre, 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 June 20, 2011

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

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

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

technical requirement 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).

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MANAGEMENT ACCUMULATION IN EMERGENCY COOLING, DECAY

REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION

DOCUMENT REQUEST

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 High Pressure Core Spray, Low Pressure Core

Spray, and Residual Heat Removal systems (hard-copies are preferred).

8. Copies of piping and instrumentation diagrams (P&IDs) of the High Pressure Core

Spray, Low Pressure Core Spray, and Residual Heat Removal 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 High Pressure Core Spray, Low Pressure Core Spray,

and Residual Heat Removal systems.

13. Design basis documents of keep-full systems of the High Pressure Core Spray, Low

Pressure Core Spray, and Residual Heat Removal systems.

14. System vvalkdovvn reports associated Vvith the resolution of GL 2008-01.

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

Pressure Core Spray, Low Pressure Core Spray, and Residual Heat Removal 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 High Pressure Core Spray, Low Pressure

Core Spray, and Residual Heat Removal 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.

-2- Enclosure

MANAGEMENT GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY

HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS

DOCUMENT REQUEST

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.

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 June 27, 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.

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

final safety analysis report, and technical report manual.

Inspector Contact Information:

US NRC Region IV

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612 E. Lamar Blvd., Suite 400

Arlington, TX 76011-4125

-3- Enclosure