ML18197A417
| ML18197A417 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 07/17/2018 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Gerry Powell South Texas |
| References | |
| IR 2018003 | |
| Download: ML18197A417 (6) | |
See also: IR 05000498/2018003
Text
July 17, 2018
Mr. G. T. Powell
Interim President, Chief Executive Officer
and Chief Nuclear 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 (05000498/2018003 AND 05000499/2018003) AND REQUEST
FOR INFORMATION
Dear Mr. Powell:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)
staff will conduct a triennial heat sink performance inspection at your South Texas Project
Electric Generating Station from September 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, Attachment 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 September 3, 2018. Also,
appropriate personnel knowledgeable of 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 Robyn Savage of your licensing organization. If
there are any questions about this inspection or the material requested, please contact the lead
inspector, Chris Smith, by telephone at 817-200-1095 or by e-mail at Chris.Smith@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.
In accordance with Title 10 of the Code of Federal Regulations (CFR) 2.390 of the NRCs
Agency 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).
G. Powell
2
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.: 50-498 and 50-499
License Nos.: NPF-76 and NPF-80
Enclosure:
Triennial Heat Sink Performance Inspection Request for Information
X SUNSI Review
ADAMS:
Non-Publicly Available
X Non-Sensitive
Keyword:
By:
X Yes No
X Publicly Available
Sensitive
OFFICE
RI:EB1
RI:EB1
C:EB1
NAME
CSmith
JBraisted
TFarnholtz
SIGNATURE
/RA by
Email/
/RA/
/RA/
DATE
07/17/18
07/17/18
07/17/18
Enclosure
Request for Information
Triennial Heat Sink Performance Inspection
South Texas Project Electric Generating Station
Inspection Report: 05000498/2018003; 05000499/2018003
Inspection Dates:
September 10 - 14, 2018
Inspection Procedure:
IP 71111.07, Heat Sink Performance, Triennial Review
Inspectors:
Chris Smith, Reactor Inspector, Lead
Jonathan Braisted, Reactor Inspector
Information Requested for the In-Office Preparation Week
The following information should be made available to the lead inspector, Chris Smith, by
September 3, 2018. Please note that additional information may be requested during the onsite
portion of the inspection. It is preferable to have the information provided in electronic format,
although the information may also be sent to the Region IV office in hard copy to the attention
the lead inspector. Also, we request that you categorize the documents in your response with
the numbered list below. If any requested documents are large and only hard copy formats are
available, please inform the inspector, and provide the documentation during the first day of the
onsite inspection. Additionally, requested documents such as corrective action program
documents are to be for the time period from the current onsite inspection back to the previous
triennial heat sink performance inspection. Requested documents such as surveillances,
maintenance tasks, or thermal performance tests are to be the last three performances of those
activities. If the requested documentation does not apply to the sample selection for this
inspection, no response is necessary. If the information requested above will not be available or
if there are questions regarding this information request, please contact the lead inspector as
soon as possible.
The following heat exchangers/heat sinks have been selected for inspection:
Spent Fuel Pool Heat Exchanger 1A (3R211NHX101A)
Reactor Containment Fan 11B Cooler Cooling Coil (2V141VHX003)
Electrical Auxiliary Building Main Air Handling Unit Cooling Coil (3V112VHX010B)
I. For the selected heat exchangers that are directly cooled by the service water system,
as applicable:
1. Method and results of heat exchanger performance testing (last 3 results)
2. Method and results of heat exchanger inspection and cleaning (last 3 results)
3. Procedures for heat exchanger operation
4. Relevant updated final safety analysis report and technical specification pages
5. Relevant heat transfer calculations
2
6. Tube plugging maps, tube plugging criteria, and allowable tube plugging
7. Evaluations of water hammer in susceptible heat exchangers
8. Results from periodic flow testing or flow balancing (last 3 results)
9. Eddy current test reports and visual inspection records (last 3 results)
10. List (with descriptions) of corrective action program documents (last 3 years)
11. Heat exchanger data sheets, program manual, and design basis documents
12. Actions or commitments to NRC Generic Letter 89-13
II. For the selected heat exchangers that are directly cooled by a closed loop cooling
water system, as applicable:
1. Procedures for heat exchanger operation
2. Relevant updated final safety analysis report and technical specification pages
3. Relevant heat transfer calculations
4. Evaluations of water hammer in susceptible heat exchangers
5. Chemical treatment program for corrosion control
6. Results from periodic flow testing or flow balancing (last 3 results)
7. Tube plugging maps, tube plugging criteria, and allowable tube plugging
8. Eddy current test reports and visual inspection records (last 3 results)
9. List (with descriptions) of corrective action program documents (last 3 years)
10. Heat exchanger data sheets and design basis documents
11. Actions or commitments to NRC Generic Letter 89-13
III. For the selected heat sink samples, as applicable:
1. Results of inspections for seepage, settlement, rip rap protection, movement, sediment
intrusion, etc. (last 3 results)
2. Third party dam inspections (last 3 results)
3. Calculation(s) of sufficient reservoir capacity
4. List (with descriptions) of corrective action program documents (last 3 years)
3
Service water system (SWS) and UHS:
1. List (with descriptions) of design changes involving the SWS and the UHS (last 3 years)
2. Procedures for a loss of SWS or UHS
3. Relevant updated final safety analysis report and technical specification pages
4. Methods and results of macrofouling treatment and control (last 3 results)
5. Methods and results of biocide treatment and control (last 3 results)
6. Methods and results of chemistry monitoring (last 3 results)
7. Evaluation(s) of strong-pump weak-pump interaction in susceptible system designs
8. Results from periodic flow testing or flow balancing (last 3 results)
9. Design basis leakage rate assumptions
10. Results of monitoring of safety- to nonsafety-related portions (i.e., leakage of interface
valves) of the SWS (last 3 results)
11. List (with descriptions) of corrective action program documents, including thru-wall pipe
leaks (last 3 years)
12. Results of ultrasonic tests and visual inspections of SWS piping (last 3 results)
13. Results of buried or inaccessible pipe testing, inspection, or monitoring program (last 3
results)
14. For closed cooling water systems, trend data from make-up systems (last 3 results)
15. Results from program used to detect protective coating failure, corrosion, and erosion
(last 3 results)
16. Results of safety-related traveling screen and strainer performance tests (last 3 results)
17. Results of service water pump bay silt accumulation monitoring (last 3 results)
18. Results of service water pump bay level instrumentation calibrations (last 3 results)
19. Design basis documents
20. Actions or commitments to NRC Generic Letter 89-13
Inspector Contact Information:
Mailing Address:
U.S. NRC, Region IV
Reactor Inspector
Reactor Inspector
Attn: Chris Smith
817-200-1095
817-200-1194
1600 East Lamar Blvd.
Chris.Smith@nrc.gov
Jonathan.Braisted@nrc.gov
Arlington, TX 76011-4511