ML18313A094
| ML18313A094 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 11/08/2018 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Sawatzke B Energy Northwest |
| Farnholtz T | |
| References | |
| IR 2018004 | |
| Download: ML18313A094 (6) | |
See also: IR 05000397/2018004
Text
November 8, 2018
Mr. Brad Sawatzke,
Chief Executive Officer
Energy Northwest
MD 1023
P.O. Box 968
Richland, WA 99352
SUBJECT:
COLUMBIA GENERATING STATION - NOTIFICATION OF NRC TRIENNIAL
HEAT SINK PERFORMANCE INSPECTION (05000397/2018004) AND
REQUEST FOR INFORMATION
Dear Mr. Sawatzke:
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 Columbia Generating Station
from December 10 - 14, 2018. 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 onsite 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 December 3, 2018. We
request that during the onsite 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 inspectors 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 Tracey Parmelee of your licensing organization.
If there are any questions about this inspection or the material requested, please contact the
lead inspector, Jonathan Braisted, by telephone at 817-200-1469 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
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.
B. Sawatzke
2
This letter, its enclosure, and your response (if any) will be made available for public inspection
and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document
Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for
Withholding.
Sincerely,
/RA/
Thomas R. Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Docket No. 50-397
License No. NPF-21
Enclosure:
Request for Information
Triennial Heat Sink Performance Inspection
cc: Electronic Distribution for the Columbia Generating Station
Enclosure
Request for Information
Triennial Heat Sink Performance Inspection
Columbia Generating Station
Inspection Report: 05000397/2018004
Inspection Dates:
December 10 - 14, 2018
Inspection Procedure:
IP 71111.07, Triennial Heat Sink Performance
Inspectors:
Jonathan Braisted, Reactor Inspector
Chris 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, to the attention of Jonathan Braisted by December 3, 2018. The inspector will review
specific items from the information requested below and then request from your staff additional
documents needed during the onsite inspection week. 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, and provide subject documentation during
the first day of the onsite 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:
Control Room Chiller Condenser CCH-CU-1B
Diesel Cooling Water Heat Exchanger DCW-HX-1A1
Residual Heat Removal Heat Exchanger RHR-HX-2A
Emergency Core Cooling System Cooling Coil B RRA-CC-3
For all samples listed above:
1. Copies of any self-assessments or audits performed in the previous three years
2. Copies of any documents such as a Generic Letter 89-13 heat exchanger program
description, heat exchanger program document, etc.
3. List of commitments (with descriptions) to the Generic Letter 89-13 program
4. Copies of system health reports and maintenance rule system notebooks
5. Copies of design bases documents, updated final safety analysis report pages, technical
specification (and bases) pages, and technical requirements manual (and bases) pages
6. List of corrective action program documents (with descriptions) for the past three years
2
7. List of any design changes (with descriptions) implemented during the past three years
8. List of preventive maintenance tasks (with descriptions) and frequency
9. Copies of simplified piping and instrumentation drawings or diagrams and operator
training manuals, if available
For the specific heat exchangers selected:
Testing Documents
10. Copies of the two most recent completed tests confirming thermal performance for those
heat exchangers which are performance tested
11. Instrument uncertainties of the instruments used during testing
12. 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
13. Documents that show the as-found results are recorded, evaluated, and appropriately
dispositioned such that the as-left condition is acceptable
Cleaning Documents
14. The cleaning and inspection maintenance schedule for each heat exchanger for the next
five years
15. Copy of the document describing the inspection results for the last two cleaning and
inspection activities completed on each heat exchanger
16. Cleaning procedures with acceptance criteria for the selected heat exchangers
17. 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
18. Copies of those documents that describe the methods taken to control water chemistry
in the heat exchangers
Design Documents
19. Provide a list of calculations (with descriptions) which currently apply to each heat
exchanger
20. Copies of vendor data sheets and design basis data for the selected heat exchangers
21. 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
3
22. 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)
23. Copy of the calculations or documents which evaluate the potential for water hammer or
excessive tube vibration in the heat exchanger or associated piping
24. 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
25. 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:
26. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)
27. Copies of calculations and surveillances that determine the ultimate heat sink reservoir
capacity and heat transfer capability (if applicable)
28. Copies of procedures for a loss of ultimate heat sink or safety-related service water
system
29. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells,
debris, etc.) and aquatic life
30. Copies of inspections and/or maintenance related to preventing biotic fouling
31. 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
32. Copy of the most recent service water flow balance test results, both as-found and as-
left
33. History of any thru-wall pipe leaks on the safety-related service water system
Inspector Contact Information:
Reactor Inspector
Reactor Inspector
817-200-1469
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
SUNSI Review
ADAMS:
Non-Publicly Available
Non-Sensitive
Keyword:
By: JDB
Yes No
Publicly Available
Sensitive
OFFICE
RI:EB1
RI:EB1
C:EB1
C:PBA
C:EB1
NAME
CSmith
JBraisted
TFarnholtz
MHaire
TFarnholtz
SIGNATURE
/RA/
/RA/
/RA/
/RA/
TRF
DATE
11/06/2018
11/06/2018
11/06/2018
11/08/2018
11/08/2018