ML15160A411
| ML15160A411 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 06/08/2015 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Koehl D South Texas |
| J. Dixon | |
| References | |
| IR 2015003 | |
| Download: ML15160A411 (7) | |
See also: IR 05000498/2015003
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
1600 E. LAMAR BLVD.
ARLINGTON, TX 76011-4511
June 8, 2015
Mr. Dennis Koehl
President and Chief Executive Officer
STP Nuclear Operating Company
P.O. Box 289
Wadsworth, TX 77483
SUBJECT:
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION -
NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE
INSPECTION (05000498/2015003 and 05000499/2015003) AND REQUEST
FOR INFORMATION
Dear Mr. Koehl:
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 South Texas Project Electric
Generating Station from August 10-14, 2015. The inspection will consist of one reactor
inspector 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 August 3, 2015. 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 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 Rafael Gonzales of your licensing organization.
If there are any questions about this inspection or the material requested, please contact the
inspector, John Dixon, by telephone at 817-200-1434 or by e-mail at John.Dixon@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.
D. Koehl
- 2 -
In accordance with 10 CFR 2.390 of the NRCs 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 NRCs 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 No(s) 50-498 and 50-499
License No(s) NPF-76 and NPF-80
Enclosure:
Triennial Heat Sink Performance Inspection
Request for Information
Distribution for the South Texas Project
Electric Generating Station
- 1 -
Enclosure
Request for Information
Triennial Heat Sink Performance Inspection
South Texas Project Electric Generating Station
Inspection Report: 05000498/2015003 and 05000499/2015003
Inspection Dates:
August 10-14, 2015
Inspection Procedure:
IP 71111.07, Triennial Heat Sink Performance
Inspector:
John Dixon, Senior 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 John Dixon, by August 3, 2015. The inspector
will select 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:
Unit 1, emergency diesel generator 11 heat exchangers
Unit 1, electrical auxiliary building Train C
Unit 2, essential cooling water/component cooling water heat exchanger A, including
component cooling water pump 2A supplemental cooler
Unit 2, essential chiller 22C and associated room coolers
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
4. Copies of any 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
- 2 -
For the specific heat exchangers selected:
Testing Documents
6. Copies of the two most recent completed tests confirming thermal performance for those
heat exchangers which are performance tested
7. Instrument uncertainties of the instruments used during testing
8. 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
9. Documents that show the as-found results are recorded, evaluated, and appropriately
dispositioned such that the as-left condition is acceptable
Cleaning Documents
10. The cleaning and inspection maintenance schedule for each heat exchanger for the next
five years
11. Copy of the document describing the inspection results for the last two cleaning and
inspection activities completed on each heat exchanger
12. Cleaning procedures with acceptance criteria for the selected heat exchangers
13. 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
14. Copies of those documents that describe the methods taken to control water chemistry
in the heat exchangers
Design Documents
15. Copies of the design basis documents and updated final safety analysis report pages for
the selected heat exchangers
16. Provide a list of calculations with a description which currently apply to each heat
exchanger
17. Copies of vendor data sheets and design basis data for the selected heat exchangers
18. 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
19. 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)
- 3 -
20. Copy of the calculations or documents which evaluate the potential for water hammer or
excessive tube vibration in the heat exchanger or associated piping
21. 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
22. 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:
23. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)
24. Copies of calculations and surveillances that determine the ultimate heat sink reservoir
capacity and heat transfer capability (if applicable)
25. Copies of any design changes performed on the ultimate heat sink or safety-related
service water system
26. Copies of procedures for a loss of ultimate heat sink or safety-related service water
system
27. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells,
debris, etc.) and aquatic life
28. Copies of inspections and/or maintenance related to preventing biotic fouling
29. 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
30. Copy of the most recent service water flow balance test results, both as-found and as-
left
31. History of any thru-wall pipe leaks on the safety-related service water system
Inspector Contact Information:
Senior Reactor Inspector
817-200-1434
John.Dixon@nrc.gov
Mailing Address:
U.S. NRC, Region IV
Attn: John Dixon
1600 East Lamar Blvd.
Arlington, TX 76011-4511
D. Koehl
- 2 -
In accordance with 10 CFR 2.390 of the NRCs 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 NRCs 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 No(s) 50-498 and 50-499
License No(s) NPF-76 and NPF-80
Enclosure:
Triennial Heat Sink Performance Inspection
Request for Information
Distribution for the South Texas Project
Electric Generating Station
Distribution
See next page
SUNSI Review
By: JLD
ADAMS:
Yes No
Sensitive
Non-Sensitive
Non-Publicly Available
Publicly Available
Keyword
OFFICE
DRS/EB1/SRI:
DRP/B
EB1 C:
NAME
JDixon
ARosenbrook
TFarnholtz
SIGNATURE
/RA/
/RA/
/RA/
DATE
6/5/15
6/8/15
6/8/15
OFFICIAL RECORD COPY
15160A411
Letter to Dennis Koehl from Thomas Farnholtz dated June 8, 2015
SUBJECT:
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION -
NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE
INSPECTION (05000498/2015003 and 05000499/2015003) AND REQUEST
FOR INFORMATION
Distribution:
Regional Administrator (Marc.Dapas@nrc.gov)
Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)
DRP Director (Troy.Pruett@nrc.gov)
DRP Deputy Director (Ryan.Lantz@nrc.gov)
DRS Director (Anton.Vegel@nrc.gov)
DRS Deputy Director (Jeff.Clark@nrc.gov)
Senior Resident Inspector (Alfred.Sanchez@nrc.gov)
Resident Inspector (Nicholas.Hernandez@nrc.gov)
Branch Chief, DRP/B (Andrew.Rosebrook@nrc.gov)
Senior Project Engineer, DRP/B (David.Proulx@nrc.gov)
Project Engineer, DRP/B (Fabian.Thomas@nrc.gov)
Project Engineer, DRP/B (Steven.Janicki@nrc.gov)
STP Administrative Assistant (Lynn.Wright@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Project Manager (Lisa.Regner@nrc.gov)
Team Leader, DRS/TSS (Don.Allen@nrc.gov
RITS Coordinator (Marisa.Herrera@nrc.gov)
ACES (R4Enforcement.Resource@nrc.gov)
Regional Counsel (Karla.Fuller@nrc.gov)
Technical Support Assistant (Loretta.Williams@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov)
RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)
RIV/ETA: OEDO (Michael.Waters@nrc.gov)