ML100110562
| ML100110562 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 01/08/2010 |
| From: | Ann Marie Stone NRC/RGN-III/DRS/EB2 |
| To: | Richard Anderson Duane Arnold |
| References | |
| IR-10-002 | |
| Download: ML100110562 (11) | |
See also: IR 05000033/2013010
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION III
2443 WARRENVILLE ROAD, SUITE 210
LISLE, IL 60532-4352
January 8, 2010
Mr. Christopher R. Costanzo
Vice President
NextEra Energy Duane Arnold, LLC
3277 DAEC Road
Palo, IA 52324-9785
SUBJECT: DUANE ARNOLD NUCLEAR POWER PLANT - NOTIFICATION OF AN NRC
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND GAS
ACCUMULATION MANAGEMENT TEMPORARY INSPECTION; AND
REQUEST FOR INFORMATION 05000331/2010002(DRS)
Dear Mr. Costanzo:
On March 8, 2010 the NRC will begin the on-site portion of the Triennial Heat Sink Performance
Inspection and the Gas Accumulation Management in Emergency Core Cooling, Decay Heat
Removal, and Containment Spray Systems Temporary Instruction at your Duane Arnold
Nuclear Station. These inspections will be performed in accordance with NRC baseline
inspection procedure (IP) 71111.07 and temporary instruction (TI) 2515/177 respectively.
In order to minimize the impact that the inspections have on the site and to ensure productive
inspections, we have enclosed two requests for documents needed for the inspections. The
documents have been divided into three groups for each inspection.
- The first group lists information necessary for our initial inspection scoping activities. This
information should be available to the lead inspector no later than January 29, 2010. By
February 5, 2010, the inspector will communicate the initial selected set of approximately 2-3
risk significant heat exchangers for IP 71111.07 and the initial selected samples for TI
2515/177.
- The second group of documents requested is those items needed to support our in-office
preparation activities. This set of documents should be available at the Regional Office no
later than February 25, 2010. This information should be separated by inspection and by
component, especially if provided electronically (e.g., folder with component name that
includes calculations, condition reports, maintenance history, etc). During the in-office
preparation activities, the inspector may identify additional information needed to support the
inspection.
- The last group includes the additional information above as well as plant specific reference
material. This information should be available to the inspector on March 8, 2010. It is also
requested that corrective action documents and/or questions developed during the inspection
be provided to the inspector as the documents are generated.
C. Costanzo -2-
Please send the information to the following e-mail address nestor.feliz-adorno@nrc.gov. A
hard-copy with the required information is also an acceptable option.
It is important that these documents be as complete as possible, in order to minimize the
number of documents requested during the preparation week or during the on-site inspection.
All requested documents are to be for the time period from the onsite inspection period back to
the last Heat Sink Performance Inspection. If no activities were accomplished in that time
period, then the request applies to the last applicable document in the previous time period.
The lead inspector for this inspection is Néstor J. Féliz Adorno. If there are questions about the
material requested, or the inspection, please call Néstor J. Féliz Adorno at (630) 829-9739.
In accordance with 10 CFR 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), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the
Public Electronic Reading Room).
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.
Sincerely,
/RA
Ann Marie Stone, Chief
Engineering Branch 2
Division of Reactor Safety
Docket Nos. 50-331
License Nos. DPR-49
Enclosures:
1. Triennial Heat Sink Inspection Document Request
2. Management Of Gas Accumulation In Emergency Core Cooling, Decay Heat Removal,
And Containment Spray Systems Temporary Inspection Document Request
cc w/encl: Distribution via ListServ
TRIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST
Inspection Report: 05000331/2010002(DRS)
Inspection Dates: March 8 - 12, 2010
Inspection Procedure: IP 71111.07, Triennial Heat Sink Performance Inspection
Lead Inspector: Néstor J. Féliz Adorno
(630) 829-9739
nestor.feliz-adorno@nrc.gov
I. Information Requested By January 29, 2010
1. List of the Generic Letter (GL) 89-13, Service Water System Problems Affecting
Safety-Related Equipment, heat exchangers in order of risk significance.
2. Copy of heat exchanger performance trending data tracked for each GL 89-13 heat
exchanger.
3. List of corrective action program documents (with a short description) associated
with GL 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, or heat
exchanger testing, for the previous two years or since the last Triennial heat sink
inspection.
4. Copy of any self-assessment done on any of GL 89-13 heat exchangers.
5. System health report(s) and maintenance rule system notebooks for all the GL 89-13
heat exchangers.
II. Information Requested By February 25, 2010
1. For the specific heat exchangers selected:
a. Copies of the two most recent completed tests confirming thermal performance
for those heat exchangers which are performance tested.
b. Copy of system description and design basis document for the heat exchangers
(as applicable).
c. Copy of any operability determinations or other documentation of degradation
associated with the heat exchangers or the systems that support the operation
for the selected heat exchangers.
1 Enclosure 1
TRIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST
d. Copy of the Updated Final Safety Analysis Report (UFSAR) sections applicable
for each heat exchanger.
e. Provide a list of calculations with a description which currently apply to each heat
exchanger.
2. A schedule of all inspections, cleanings, maintenance, or testing of any plant heat
exchanger to be done during the on-site portion of the inspection.
3. Copies of procedures developed to implement the recommendations of GL 89-13,
e.g., the GL 89-13 Heat Exchanger Program description.
4. Updated Final Safety Analysis Report pages for the GL 89-13 Heat Exchanger
Program.
5. Maximum Cooling Water system inlet temperature limit that still allows full licensed
power operation of the nuclear reactor. Please provide the document that states this
limit (e.g., USAR or TRM) and the operating procedure that ensures this limit is not
exceeded.
III. Information Requested to be Available on First Day of Inspection, March 08, 2010
1. For the specific heat exchangers selected:
a. Provide the Design Basis Documents and Updated Final Safety Analysis Report
pages for the selected heat exchangers.
b. Copy of the design specification and heat exchanger data sheets for each heat
exchanger.
c. Copy of the vendor manuals including component drawings for each heat
exchanger.
d. Copy of the calculation which establishes the limiting (maximum) design basis
heat load which is required to be removed by each of these heat exchangers.
e. Copy of the calculation which correlates surveillance testing results from these
heat exchangers with design basis heat removal capability (e.g., basis for
surveillance test acceptance criteria).
f. Copy of the calculations or documents which evaluate the potential for water
hammer or excessive tube vibration in the heat exchanger or associated piping.
g. List of engineering-related Operator Workarounds/Temporary Modifications for
these heat exchangers since the last Heat Sink Performance
h. Copy of the evaluations of data for the two most recent completed tests
confirming the thermal performance of each heat exchanger.
2 Enclosure 1
TRIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST
i. Documentation and procedures that identify the types, accuracy, and location of
any special instrumentation used for the two most recently completed thermal
performance tests for the heat exchangers (e.g., high accuracy ultrasonic flow
instruments or temperature instruments). Include calibration records for the
instruments used during these tests.
j. Copies of those documents that describe the methods taken to control water
chemistry in the heat exchangers.
k. Copies of the documents that verify the structural integrity of the heat exchanger,
e.g., eddy current summary sheets, ultrasonic testing results, and visual
inspection results.
l. The cleaning and inspection maintenance schedule for each heat exchanger for
the next five years.
m. Copy of the document describing the inspection results for the last two clean and
inspection activities completed on each heat exchanger.
n. Copy of the document which identifies the current number of tubes in service for
each heat exchanger and the supporting calculation which establishes the
maximum number of tubes which can be plugged in each heat exchanger.
o. Copy of the document establishing the repair criteria (plugging limit) for degraded
tubes which are identified in each heat exchanger.
p. Information regarding any alarms which monitor on-line performance.
2. For the ultimate heat sink:
a. The toe of the weir or embankment inspection procedures and results.
b. The inspection, procedures and results of rip rap protection placed on excavated
side.
c. Dam inspections that monitor the integrity of the heat sink.
d. Inspections and/or maintenance related to preventing macrofouling (silt, dead
mussel shells, debris, etc.) and aquatic life such as fish, algae, grass or kelp.
e. Inspections and/or maintenance related to preventing biotic fouling.
f. Copies of any design change performed on the system.
g. Copies of procedures for a loss of UHS.
3 Enclosure 1
TRIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST
h. Copies of calculations and surveillances that determine the UHS reservoir
capacity and heat transfer capability.
i. Copies of surveillance procedures and testing results conducted on the level
instrumentation relied upon to determine UHS reservoir capability.
3. For the safety related service water system (or equivalent):
a. Copies of any design changes performed on the system.
b. Copies of procedures for a loss of service water system.
c. Copies of inspections and/or maintenance related to macrofouling (silt, dead
mussel shells, debris, etc.) and aquatic life such as fish, algae, grass or kelp.
d. Copies of inspections and/or maintenance related to preventing biotic fouling.
e. Copies of procedures and/or test results to survey or monitor interface valves
between the safety related section of the service water system and the non-
safety related section.
f. History of any thru wall pipe leak on the system.
g. Copies of evaluations for strong-pump vs. weak-pump interaction.
If the information requested above will not be available, please contact Néstor J. Féliz Adorno
as soon as possible at (630) 829-9739 or email nestor.feliz-adorno@nrc.gov.
4 Enclosure 1
MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION
DOCUMENT REQUEST
Inspection Report: 05000331/2010002(DRS)
Inspection Dates: March 8-12, 2010 and March 22-26, 2010
Inspection Procedure: TI 2515/177, Management of Gas Accumulation in Emergency
Core Cooling, Decay Heat Removal, and Containment Spray
Systems
Lead Inspector: Néstor J. Féliz Adorno
(630) 829-9739
nestor.feliz-adorno@nrc.gov
I. Information Requested By January 29, 2010
1. Copy of the station response to Generic Letter (GL) 2008-01 and any supplemental
report.
2. Copies of all the requests for additional information (RAIs) and the associated
responses.
3. List of corrective action program documents (with a short description) associated
with GL 2008-01, voids in piping, and waterhammer for the previous three years.
4. List of the suction piping sections identified as susceptible to gas accumulation (the
list should identify the corresponding system).
5. List of the discharge piping sections identified as susceptible to gas accumulation
(the list should identify the corresponding system).
6. 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.
7. List of calculations that have been changed or created (with a short description of the
calculation and the change) in response to GL 2008-01.
8. List of physical modifications (with a short description) performed in response to
1 Enclosure 2
MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION
DOCUMENT REQUEST
II. Information Requested By February 25, 2010
1. Copies of procedures developed to implement the resolution of GL 2008-01.
2. Copies of the modification packages for hardware modifications as part of the
resolution of GL 2008-01.
3. Copies of the selected calculations.
4. Copies of the selected corrective action program documents.
5. Copies of the selected licensing and design basis document changes.
6. List of commitments (with a description) done in response to GL 2008-01.
7. List of actions that were completed in response to GL 2008-01.
8. Copies of all the corrective actions identified in the nine-month response and
supplemental reports.
9. List (with a short description) of gas intrusion mechanisms that apply to the plant.
10. 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 Regulations (NRR).
11. Basis for horizontal pipe acceptance criteria (e.g. calculation).
12. Design basis documents of the subject systems (i.e., emergency core cooling, decay
heat removal, and containment spray systems).
13. Design basis documents of keep-full systems of the subject systems.
III. Information Requested to be Available on First Day of Inspection, March 08, 2010
1. Copies of surveillance procedures associated with the resolution of GL 2008-01 and
the results of the last two surveillances.
2. Copies of procedures use for detecting and determining void volumes.
3. Copies of procedures use for filling and venting.
4. Copies of isometric drawings of the subject systems.
5. Copies of piping and instrumentation diagrams (P&IDs) of the subject systems.
2 Enclosure 2
MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY
HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION
DOCUMENT REQUEST
6. Subject systems walkdown work documents associated with the resolution of
GL 2008-01 and the results of these walkdowns.
7. Copies of the engineering evaluations performed for all voids found since 2008.
8. Copies of trends of periodic venting results.
9. Copy of the design change review checklist that establish if a design change
introduces or increases the potential for gas accumulation beyond established
acceptance criteria.
10. Copies of training documents that ensure that personnel are aware of gas-related
concerns.
11. Copy of the void transport analysis.
12. If applicable, provide a list of inaccessible locations where plant walkdowns of the
subject systems have not been completed. Include an explanation of why each area
is considered inaccessible.
If the information requested above will not be available, please contact Néstor J. Féliz Adorno
as soon as possible at (630) 829-9739 or email nestor.feliz-adorno@nrc.gov.
3 Enclosure 2
R. Anderson -2-
Please send the information to the following e-mail address nestor.feliz-adorno@nrc.gov. A hard-copy with the
required information is also an acceptable option.
It is important that these documents be as complete as possible, in order to minimize the number of documents
requested during the preparation week or during the on-site inspection.
All requested documents are to be for the time period from the onsite inspection period back to the last Heat
Sink Performance Inspection. If no activities were accomplished in that time period, then the request applies to
the last applicable document in the previous time period.
The lead inspector for this inspection is Néstor J. Féliz Adorno. If there are questions about the material
requested, or the inspection, please call Néstor J. Féliz Adorno at (630) 829-9739.
In accordance with 10 CFR 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),
accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading
Room).
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.
Sincerely,
/RA/
Ann Marie Stone, Chief
Engineering Branch 2
Division of Reactor Safety
Docket Nos. 50-331
License Nos. DPR-49
Enclosures:
1. Triennial Heat Sink Inspection Document Request
2. Management Of Gas Accumulation In Emergency Core Cooling, Decay Heat Removal, And Containment
cc w/encl: Distribution via ListServ
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OFFICE RIII RIII
NAME NFeliz-Adorno AMStone
DATE 01/08/2010 01/08/2010
OFFICIAL RECORD COPY
Letter to Richard Anderson from Ann Marie Stone dated January 8, 2010.
SUBJECT: DUANE ARNOLD NUCLEAR POWER PLANT - NOTIFICATION OF AN NRC
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND GAS
ACCUMULATION MANAGEMENT TEMPORARY INSPECTION; AND
REQUEST FOR INFORMATION 05000331/2010002(DRS)
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