ML17004A177
| ML17004A177 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 01/04/2017 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Peters K TEX Operations Company |
| References | |
| IR 2017001 | |
| Download: ML17004A177 (7) | |
See also: IR 05000445/2017001
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
1600 E. LAMAR BLVD
ARLINGTON, TX 76011-4511
January 4, 2017
Mr. Ken J. Peters, Senior Vice President
and Chief Nuclear Officer
Attention: Regulatory Affairs
TEX Operations Company LLC
P.O. Box 1002
Glen Rose, TX 76043
SUBJECT: COMANCHE PEAK NUCLEAR POWER PLANT - NOTIFICATION OF NRC
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION (05000445/2017001
AND 05000446/2017001) AND REQUEST FOR INFORMATION
Dear Mr. Peters:
The purpose of this letter is to notify you that U.S. Nuclear Regulatory Commission (NRC) staff
will conduct a triennial heat sink performance inspection at your Comanche Peak Nuclear
Power Plant, Units 1 and 2, from January 30, 2017, through February 3, 2017. The inspection
will consist of two reactor inspectors from the NRCs Region IV office for one week. The
inspection will be conducted in accordance with NRC Inspection Procedure 71111.07, Heat
Sink Performance.
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 on-site resources and to ensure a
productive inspection, we have enclosed a request for documents needed for this inspection.
Please note that the documents are requested to be provided by January 23, 2017. We request
that during the on-site inspection week you ensure that copies of analyses, evaluations, or
documentation regarding the implementation and maintenance of your heat exchanger program
are available. Of specific interest are those documents that establish that your heat exchanger
program satisfies NRC regulatory requirements and conforms to applicable NRC guidance.
Also, appropriate personnel knowledgeable of safety-related heat exchangers should be
available to support the inspector at the site during the inspection.
We have discussed the schedule for this inspection activity 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 material requested, please contact the
inspector, Jonathan Braisted, by telephone at 817-200-1194 or by e-mail at
Jonathan.Braisted@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
K. Peters 2
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 and Procedure, 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 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. 50-445 and 50-446
License Nos. NPF-87 and NPF-89
Enclosure:
Triennial Heat Sink Performance
Inspection Request for Information
cc: Electronic Distribution
SUNSI Review ADAMS Publicly Available Non-Sensitive Keyword:
By: JBraisted Yes No Non-Publicly Available Sensitive NRC-002
OFFICE RI:EB1 C:EB1
NAME JBraisted TFarnholtz
SIGNATURE /RA/ /RA/
DATE 1/4/17 1/4/17
Request for Information
Triennial Heat Sink Performance Inspection
Comanche Peak Nuclear Power Plant
Inspection Reports: 05000445/2017001 and 05000446/2017001
Inspection Dates: January 30, 2017, through February 3, 2017
Inspection Procedure: IP 71111.07, Triennial Heat Sink Performance
Inspectors: J. Braisted, Reactor Inspector
C. Smith, Reactor Inspector
Information Requested for the In-Office Preparation Week
The following information should be sent to the Region IV office in hard copy or electronic
format (Certrec IMS preferred), to the attention of Jonathan Braisted, by January 16, 2017. The
inspector will select specific items from the information requested below and then request from
your staff additional documents needed during the on-site inspection week. We also 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, and provide subject
documentation during the first day of the on-site inspection. If you have any questions
regarding this information request, please call the lead inspector as soon as possible.
The following heat exchangers/heat sinks have been selected for inspection:
- Residual Heat Removal Heat Exchanger 2-01
- Component Cooling Water Heat Exchanger 2-01
- Safety Chilled Water System Centrifugal Chiller 2-05
For all Generic Letter 89-13 exchangers:
1. List of corrective action program documents (with a short description) associated with
Generic Letter 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, heat
exchanger cavitation, or heat exchanger testing, in the previous three years
2. System health report(s) and maintenance rule system notebooks for all the Generic
Letter 89-13 heat exchangers
3. Copy of any self-assessments done on any Generic Letter 89-13 heat exchangers in the
previous three years
Enclosure
4. Copies of any heat exchanger program procedure and procedures developed to
implement the recommendations of Generic Letter 89-13 (e.g., the Generic Letter 89-13
Heat Exchanger Program description)
5. Copies of any commitments to the Generic Letter 89-13 program
6. Schedule of any work to be performed on the selected samples during the inspection
For the specific heat exchangers selected:
Testing Documents
7. Copies of the two most recently completed tests confirming thermal performance for
those heat exchangers which are performance tested
8. Instrument uncertainties of the instruments used during testing
9. 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
10. Documents that show the as-found results are recorded, evaluated, and appropriately
dispositioned such that the as-left condition is acceptable
Cleaning Documents
11. The cleaning and inspection maintenance schedule for each heat exchanger for the next
five years
12. Copy of the document describing the inspection results for the last two cleaning and
inspection activities completed on each heat exchanger
13. Cleaning procedures with acceptance criteria for the selected heat exchangers
14. 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)
15. Copies of those documents that describe the methods taken to control water chemistry
in the heat exchangers
Design Documents
16. Copies of the design basis documents and applicable pages from the updated final
safety analysis report and technical specifications for the selected heat exchangers
17. Provide a list of calculations with a description which currently apply to each heat
exchanger
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18. Copies of vendor manuals and data sheets and design basis data for the selected heat
exchangers
19. 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
20. 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)
21. Copy of the calculations or documents which evaluate the potential for water hammer or
excessive tube vibration in the heat exchanger or associated piping
22. 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
23. Copy of the document establishing the repair criteria (plugging limit) for degraded tubes
which are identified in each heat exchanger
For the ultimate heat sink or safety-related service water system:
24. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)
25. Copies of calculations and surveillances that determine the ultimate heat sink reservoir
capacity and heat transfer capability (if applicable)
26. Copies of any design changes performed on the ultimate heat sink or safety-related
service water system
27. Copies of procedures for a loss of ultimate heat sink or safety-related service water
system
28. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells,
debris, etc.) and aquatic life
29. Copies of inspections and/or maintenance-related to preventing biotic fouling
30. 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 nonsafety-related section
31. Copy of the most recent service water flow balance test results, both as-found and as-
left
32. History of any thru-wall pipe leaks on the safety-related service water system
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Inspector Contact Information:
Reactor Inspector Reactor Inspector
817-200-1194 817-200-1095
Jonathan.Braisted@nrc.gov Chris.Smith@nrc.gov
Mailing Address:
U.S. NRC, Region IV
Attn: Jonathan Braisted
1600 East Lamar Blvd.
Arlington, TX 76011-4511
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