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| number = ML16265A165 | | number = ML16265A165 | ||
| issue date = 09/20/2016 | | issue date = 09/20/2016 | ||
| title = | | title = Notification of an NRC Triennial Heat Sink Performance Inspection and Request for Information; Inspection Report 05000282/2016004; 05000306/2016004 (Gfo) | ||
| author name = O'Dwyer G | | author name = O'Dwyer G | ||
| author affiliation = NRC/RGN-III/DRS/EB2 | | author affiliation = NRC/RGN-III/DRS/EB2 | ||
| addressee name = Northard S | | addressee name = Northard S | ||
Line 14: | Line 14: | ||
| page count = 8 | | page count = 8 | ||
}} | }} | ||
See also: [[ | See also: [[see also::IR 05000282/2016004]] | ||
=Text= | =Text= | ||
{{#Wiki_filter: | {{#Wiki_filter:UNITED STATES | ||
NUCLEAR REGULATORY COMMISSION | |||
REGION III | |||
2443 WARRENVILLE RD. SUITE 210 | |||
LISLE, IL 60532-4352 | |||
September 20, 2016 | |||
Mr. Scott Northard | |||
Site Vice President | |||
Prairie Island Nuclear Generating Plant | |||
Northern States Power Company, Minnesota | |||
1717 Wakonade Drive East | |||
Welch, MN 55089 | |||
SUBJECT: PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 | |||
NOTIFICATION OF AN NRC TRIENNIAL HEAT SINK PERFORMANCE | |||
INSPECTION AND REQUEST FOR INFORMATION; INSPECTION REPORT | |||
05000282/2016004; 05000306/2016004 | |||
Dear Mr. Northard: | |||
On November 14, 2016, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite | |||
portion of the Triennial Heat Sink Performance Inspection at your Prairie Island Nuclear Power | |||
Plant, Units 1 and 2. This inspection will be performed in accordance with NRC baseline | |||
Inspection Procedure 71111.07. | |||
In order to minimize the impact that the inspection has on the site and to ensure a productive | |||
inspection, we have enclosed a request for documents needed for the inspection. The | |||
documents have been divided into three groups. | |||
The first group lists information necessary for our initial inspection scoping activities. | |||
This information should be available to the lead inspector no later than September 30, 2016. | |||
By October 10, 2016, the inspector will communicate the initial selected set of approximately | |||
2-3 risk-significant heat exchangers. | |||
The second group is needed to support our in-office preparation activities. This set of | |||
documents, including the calculations associated with the selected heat exchangers, should | |||
be available at the Regional Office no later than October 31, 2016. This information should | |||
be separated for each selected 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 onsite to the inspector on November 14, 2016. | |||
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. | |||
S. Northard -2- | |||
All requested documents are to be for the time period from the onsite inspection period back | |||
to the documents that were provided in response to the previous 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. 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 onsite inspection. | |||
We understand that our licensing contact for this inspection is Pamela Johnson of your organization | |||
and she has been informed that the lead inspector for this inspection is Gerard ODwyer. If there | |||
are any questions about the inspection or the material requested in the enclosure, please contact | |||
the lead inspector at 630-829-9624 or via e-mail at Gerard.ODwyer@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 (10 CFR) 2.390, Public | |||
Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy | |||
of this letter, its enclosure, and your response (if any) will be available electronically for public | |||
inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS) | |||
component of the NRC's Agencywide Documents Access and Management 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/ | |||
Gerard ODwyer, Reactor Inspector | |||
Engineering Branch 2 | |||
Division of Reactor Safety | |||
Docket Nos. 50-282, 50-306 | |||
License Nos. DPR-42, DPR-60 | |||
Enclosure: | |||
Triennial Heat Sink Performance Inspection | |||
Document Request | |||
cc: Distribution via LISTSERV | |||
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | |||
Inspection Report: 05000282/2016004; 05000306/2016004 | |||
Inspection Dates: November 14 - 18, 2016 | |||
Inspection Procedure: IP 71111.07, Heat Sink Performance | |||
Lead Inspector: Gerard ODwyer | |||
630-829-9624 | |||
Gerard.ODwyer@nrc.gov | |||
I. Information Requested By September 30, 2016: | |||
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 (CAP) documents (with a short description) | |||
associated with GL 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, or | |||
heat exchanger testing, for the previous 3 years or since the last CAP document list | |||
was sent to the U.S. Nuclear Regulatory Commission for the previous Heat Sink | |||
Performance Inspection. The list should include all CAP documents not on the last | |||
CAP list. | |||
4. Copy of any self-assessment done on any of GL 89-13 heat exchangers. | |||
5. Last two System Health Report(s) and maintenance rule system notebooks for all the | |||
GL 89-13 heat exchangers. | |||
6. List of engineering-related operator workarounds (with a short description) | |||
associated with GL 89-13 heat exchangers. The requested documents are to be for | |||
the time period from the onsite inspection period back to the documents that were | |||
provided in response to the previous Heat Sink Performance Inspection. | |||
7. List of permanent and temporary modifications (with a short description) associated | |||
with GL 89-13 heat exchangers. The requested documents are to be for the time | |||
period from the onsite inspection period back to the documents that were provided in | |||
response to the previous Heat Sink Performance Inspection. | |||
8. A schedule of all inspections, cleanings, maintenance, or testing of any safety-related | |||
plant heat exchanger to be performed during the onsite portion of the inspection. | |||
II Information Requested By October 31, 2016: | |||
1. Copies of the GL 89-13 responses. | |||
2. Copy of the Updated Final Safety Analysis Report (UFSAR) section applicable to the | |||
GL 89-13 Heat Exchanger Program. | |||
Enclosure | |||
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | |||
3. Copies of procedures developed to implement the recommendations of GL 89-13 | |||
(e.g., the GL 89-13 Heat Exchanger Program description). | |||
4. Copies of the selected CAP documents. | |||
5. For the specific heat exchangers selected: | |||
a. Copies of the UFSAR sections applicable for each heat exchanger. | |||
b. Copy of system description and design basis document for the heat exchangers | |||
(as applicable). | |||
c. Provide a list of calculations (with a short description) which currently apply to | |||
each heat exchanger to: | |||
i. establish the limiting design basis heat load required to be removed by | |||
each of these heat exchangers; | |||
ii. demonstrate the heat exchangers capacity to remove the limiting heat load; | |||
iii. correlate surveillance testing and/or inspection results from these heat | |||
exchangers with design basis heat removal capability (e.g., basis for | |||
surveillance test and/or inspection acceptance criteria); | |||
iv. evaluate the potential for water hammer in each heat exchanger or | |||
associated piping; and | |||
v. evaluate excessive tube vibration in each heat exchanger. | |||
d. 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. | |||
e. Copy of the construction code, Design Specification, heat exchanger data | |||
sheets, and vendor documents including component drawings applicable for the | |||
heat exchangers. | |||
f. Copies of normal, abnormal, and emergency operating procedures associated | |||
with the selected heat exchangers. | |||
6. For the Ultimate Heat Sink (UHS) including the Emergency Cooling Water Intake Pipe: | |||
a. Copies of the applicable UFSAR sections. | |||
b. Copy of system description and design basis document (as applicable). | |||
c. Copy of any operability determinations or other documentation of degradation | |||
associated with the UHS. | |||
d. Copy of the section of the document (e.g., UFSAR or Technical Requirements | |||
Manual) that states the maximum safety related service water system inlet | |||
temperature limit that still allows full licensed power operation of the nuclear reactor. | |||
e. Copy of system description and design basis document (as applicable). | |||
2 | |||
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | |||
f. Copy of the construction code and Design Specification for the UHS. | |||
g. Copies of normal, abnormal, and emergency operating procedures associated | |||
with the UHS including procedures for loss of UHS. | |||
h. Provide an electronic copy of piping and instrumentation diagrams or other | |||
appropriate drawings for the service water system and the UHS, including the | |||
intake structure. | |||
i. Provide a list of calculations (with a short description), which currently apply to UHS. | |||
j. Provide a list of instruments (with a short description) associated with automatic | |||
or alarm functions for the UHS. | |||
k. Provide a list of any design change (with a short description) performed on the | |||
UHS since the last Heat Sink Performance Inspection. | |||
7. An updated schedule of all inspections, cleanings, maintenance, or testing of any | |||
safety-related plant heat exchanger to be performed during the on-site portion of the | |||
inspection. | |||
III Information Requested to be Available on First Day of Inspection, November 14, 2016: | |||
1. For both units, please provide a computer copy of UFSAR, Technical Specifications | |||
and Bases, and Technical Requirements Manual. | |||
2. For the specific heat exchangers selected. | |||
a. 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). | |||
b. Copies of the two most recent completed tests and evaluation data confirming | |||
thermal performance for those heat exchangers which are performance tested. | |||
c. 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. | |||
d. Information regarding any alarms which monitor online performance. | |||
e. Copy of the document describing the inspection results of each heat exchanger. | |||
The requested documents are to be for the time period from the onsite inspection | |||
period back to the documents that were provided in response to the previous | |||
Heat Sink Performance Inspection. | |||
f. The cleaning and inspection maintenance schedule for each heat exchanger for | |||
the next 5 years. | |||
g. Copy of the design specification and heat exchanger data sheets for each heat | |||
exchanger. | |||
3 | |||
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | |||
h. Copy of the vendor manuals including component drawings for each heat exchanger. | |||
i. 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. | |||
j. Copy of the operating procedure that ensures that the maximum cooling water | |||
system inlet temperature limit is not exceeded. | |||
k. Copy of the calculations or documents which evaluate the potential for water | |||
hammer in each heat exchanger or associated piping. | |||
l. Copy of the calculations that evaluate excessive tube vibration in each heat | |||
exchanger and the documents that describe the controls that prevent heat | |||
exchanger degradation due to excessive flow induced vibration during operation. | |||
m. Copy of the periodic flow testing at or near maximum design flow. The requested | |||
documents are to be for the time period from the onsite inspection period back to | |||
the documents that were provided in response to the previous Heat Sink | |||
Performance Inspection. | |||
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. 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). | |||
q. Copies of those documents that describe the methods taken to control water | |||
chemistry in the heat exchangers. | |||
3. For the UHS including the Emergency Cooling Water Intake Pipe: | |||
a. Copies of the inspection procedures of the rip rap protection placed on excavated | |||
side slopes and the associated results. The requested documents are to be for | |||
the time period from the onsite inspection period back to the documents that | |||
were provided in response to the previous Heat Sink Performance Inspection. | |||
b. Copies of the dam inspection procedures that monitor the integrity of the heat | |||
sink and the associated results. The requested documents are to be for the time | |||
period from the onsite inspection period back to the documents that were | |||
provided in response to the previous Heat Sink Performance Inspection. | |||
c. Copies of calculations and surveillances that demonstrate the UHS reservoir | |||
capacity and heat transfer capability including the Emergency Cooling Water | |||
Intake Pipe. | |||
d. Copies of the inspection procedures for the verification of the structural integrity of | |||
underwater UHS and the associated results. The requested documents are to be | |||
for the time period from the onsite inspection period back to the documents that | |||
were provided in response to the previous Heat Sink Performance Inspection. | |||
4 | |||
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST | ||
e. Copies of the maintenance and/or inspection procedures for underwater UHS | |||
sediment intrusion and the associated results including underwater diving | |||
inspections and/or sediment removal activities. The requested documents are | |||
to be for the time period from the onsite inspection period back to the documents | |||
that were provided in response to the previous Heat Sink Performance Inspection. | |||
f. Copies of the procedures used for verifying that adjacent non-seismic or | |||
nonsafety-related structures cannot degrade or block safety-related flow paths | |||
during severe weather or seismic events. | |||
g. Copy of the calculation associated with the structural integrity of the UHS. The | |||
requested documents are to be for the time period from the onsite inspection | |||
period back to the documents that were provided in response to the previous | |||
Heat Sink Performance Inspection. | |||
4. For the review associated with the system walkdown of the service water intake | |||
structure: | |||
a. Copies of corrective maintenance for the last 6 years associated with service | |||
water strainers, traveling screens and trash racks. | |||
b. Copies of the last two inspections and/or surveillances associated with service | |||
water strainers, traveling screens and trash racks. | |||
c. List of preventive maintenance, including frequency, associated with service | |||
water strainers, traveling screens and trash racks. | |||
d. Copies of abnormal procedures for the traveling screens and service water | |||
strainers. | |||
e. Copies of the last two inspections and/or surveillances documenting that | |||
component mounts have not excessively degraded (i.e., due to corrosion). For | |||
example, inspections for the mounts for the, Service water pumps, service water | |||
strainers, traveling screens and trash racks. | |||
f. Copies of the documents associated with the monitoring, trending, and | |||
remediation of silt accumulation at the service water pump bay. | |||
g. Copies of surveillance procedures and testing results performed on the service | |||
water pump bay water level instruments. The requested documents are to be for | |||
the time period from the onsite inspection period back to the documents that | |||
were provided in response to the previous Heat Sink Performance Inspection. | |||
h. Copies of procedures associated with operating during adverse weather | |||
conditions (e.g., icing, high temperatures, or low level). | |||
i. Copy of the evaluation for the potential effects of low flow/level on underwater | |||
weir walls intended to limit silt or sand intake, if applicable. | |||
If any of the information requested above will not be available, please contact Gerard ODwyer | |||
as soon as possible at 630-829-9624 or e-mail at Gerard.ODwyer@nrc.gov. | |||
5 | |||
S. Northard -2- | |||
All requested documents are to be for the time period from the onsite inspection period back | |||
to the documents that were provided in response to the previous 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. 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 onsite inspection. | |||
We understand that our licensing contact for this inspection is Pamela Johnson of your organization | |||
and she has been informed that the lead inspector for this inspection is Gerard ODwyer. If there | |||
are any questions about the inspection or the material requested in the enclosure, please contact | |||
the lead inspector at 630-829-9624 or via e-mail at Gerard.ODwyer@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 (10 CFR) 2.390, Public | |||
Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy | |||
of this letter, its enclosure, and your response (if any) will be available electronically for public | |||
inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS) | |||
component of the NRC's Agencywide Documents Access and Management 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/ | |||
Gerard ODwyer, Reactor Inspector | |||
Engineering Branch 2 | |||
Division of Reactor Safety | |||
Docket Nos. 50-282, 50-306 | |||
License Nos. DPR-42, DPR-60 | |||
Enclosure: | |||
Triennial Heat Sink Performance Inspection | |||
Document Request | |||
cc: Distribution via LISTSERV | |||
DISTRIBUTION: Cynthia Pederson Linda Linn | |||
Jeremy Bowen Darrell Roberts DRPIII | |||
RidsNrrPMPrairieIsland Resource Richard Skokowski DRSIII | |||
RidsNrrDorlLpl3-1 Resource Allan Barker | |||
RidsNrrDirsIrib Resource Carole Ariano | |||
ADAMS Accession Number ML16265A156 | |||
Publicly Available Non-Publicly Available Sensitive Non-Sensitive | |||
To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" = Copy with attach/encl "N" = No copy | |||
OFFICE RIII RIII RIII RIII | |||
NAME GODwyer:cl | |||
DATE 09/20/16 | |||
OFFICIAL RECORD COPY | |||
}} | }} |
Latest revision as of 16:28, 16 November 2019
ML16265A165 | |
Person / Time | |
---|---|
Site: | Prairie Island ![]() |
Issue date: | 09/20/2016 |
From: | O'Dwyer G NRC/RGN-III/DRS/EB2 |
To: | Northard S Northern States Power Company, Minnesota |
References | |
IR 2016004 | |
Download: ML16265A165 (8) | |
See also: IR 05000282/2016004
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION III
2443 WARRENVILLE RD. SUITE 210
LISLE, IL 60532-4352
September 20, 2016
Mr. Scott Northard
Site Vice President
Prairie Island Nuclear Generating Plant
Northern States Power Company, Minnesota
1717 Wakonade Drive East
Welch, MN 55089
SUBJECT: PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2
NOTIFICATION OF AN NRC TRIENNIAL HEAT SINK PERFORMANCE
INSPECTION AND REQUEST FOR INFORMATION; INSPECTION REPORT
05000282/2016004; 05000306/2016004
Dear Mr. Northard:
On November 14, 2016, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite
portion of the Triennial Heat Sink Performance Inspection at your Prairie Island Nuclear Power
Plant, Units 1 and 2. This inspection will be performed in accordance with NRC baseline
Inspection Procedure 71111.07.
In order to minimize the impact that the inspection has on the site and to ensure a productive
inspection, we have enclosed a request for documents needed for the inspection. The
documents have been divided into three groups.
The first group lists information necessary for our initial inspection scoping activities.
This information should be available to the lead inspector no later than September 30, 2016.
By October 10, 2016, the inspector will communicate the initial selected set of approximately
2-3 risk-significant heat exchangers.
The second group is needed to support our in-office preparation activities. This set of
documents, including the calculations associated with the selected heat exchangers, should
be available at the Regional Office no later than October 31, 2016. This information should
be separated for each selected 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 onsite to the inspector on November 14, 2016.
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.
S. Northard -2-
All requested documents are to be for the time period from the onsite inspection period back
to the documents that were provided in response to the previous 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. 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 onsite inspection.
We understand that our licensing contact for this inspection is Pamela Johnson of your organization
and she has been informed that the lead inspector for this inspection is Gerard ODwyer. If there
are any questions about the inspection or the material requested in the enclosure, please contact
the lead inspector at 630-829-9624 or via e-mail at Gerard.ODwyer@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 (10 CFR) 2.390, Public
Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy
of this letter, its enclosure, and your response (if any) will be available electronically for public
inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS)
component of the NRC's Agencywide Documents Access and Management 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/
Gerard ODwyer, Reactor Inspector
Engineering Branch 2
Division of Reactor Safety
Docket Nos. 50-282, 50-306
Enclosure:
Triennial Heat Sink Performance Inspection
Document Request
cc: Distribution via LISTSERV
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
Inspection Report: 05000282/2016004; 05000306/2016004
Inspection Dates: November 14 - 18, 2016
Inspection Procedure: IP 71111.07, Heat Sink Performance
Lead Inspector: Gerard ODwyer
630-829-9624
Gerard.ODwyer@nrc.gov
I. Information Requested By September 30, 2016:
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 (CAP) documents (with a short description)
associated with GL 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, or
heat exchanger testing, for the previous 3 years or since the last CAP document list
was sent to the U.S. Nuclear Regulatory Commission for the previous Heat Sink
Performance Inspection. The list should include all CAP documents not on the last
CAP list.
4. Copy of any self-assessment done on any of GL 89-13 heat exchangers.
5. Last two System Health Report(s) and maintenance rule system notebooks for all the
GL 89-13 heat exchangers.
6. List of engineering-related operator workarounds (with a short description)
associated with GL 89-13 heat exchangers. The requested documents are to be for
the time period from the onsite inspection period back to the documents that were
provided in response to the previous Heat Sink Performance Inspection.
7. List of permanent and temporary modifications (with a short description) associated
with GL 89-13 heat exchangers. The requested documents are to be for the time
period from the onsite inspection period back to the documents that were provided in
response to the previous Heat Sink Performance Inspection.
8. A schedule of all inspections, cleanings, maintenance, or testing of any safety-related
plant heat exchanger to be performed during the onsite portion of the inspection.
II Information Requested By October 31, 2016:
1. Copies of the GL 89-13 responses.
2. Copy of the Updated Final Safety Analysis Report (UFSAR) section applicable to the
GL 89-13 Heat Exchanger Program.
Enclosure
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
3. Copies of procedures developed to implement the recommendations of GL 89-13
(e.g., the GL 89-13 Heat Exchanger Program description).
4. Copies of the selected CAP documents.
5. For the specific heat exchangers selected:
a. Copies of the UFSAR sections applicable for each heat exchanger.
b. Copy of system description and design basis document for the heat exchangers
(as applicable).
c. Provide a list of calculations (with a short description) which currently apply to
each heat exchanger to:
i. establish the limiting design basis heat load required to be removed by
each of these heat exchangers;
ii. demonstrate the heat exchangers capacity to remove the limiting heat load;
iii. correlate surveillance testing and/or inspection results from these heat
exchangers with design basis heat removal capability (e.g., basis for
surveillance test and/or inspection acceptance criteria);
iv. evaluate the potential for water hammer in each heat exchanger or
associated piping; and
v. evaluate excessive tube vibration in each heat exchanger.
d. 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.
e. Copy of the construction code, Design Specification, heat exchanger data
sheets, and vendor documents including component drawings applicable for the
heat exchangers.
f. Copies of normal, abnormal, and emergency operating procedures associated
with the selected heat exchangers.
6. For the Ultimate Heat Sink (UHS) including the Emergency Cooling Water Intake Pipe:
a. Copies of the applicable UFSAR sections.
b. Copy of system description and design basis document (as applicable).
c. Copy of any operability determinations or other documentation of degradation
associated with the UHS.
d. Copy of the section of the document (e.g., UFSAR or Technical Requirements
Manual) that states the maximum safety related service water system inlet
temperature limit that still allows full licensed power operation of the nuclear reactor.
e. Copy of system description and design basis document (as applicable).
2
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
f. Copy of the construction code and Design Specification for the UHS.
g. Copies of normal, abnormal, and emergency operating procedures associated
with the UHS including procedures for loss of UHS.
h. Provide an electronic copy of piping and instrumentation diagrams or other
appropriate drawings for the service water system and the UHS, including the
intake structure.
i. Provide a list of calculations (with a short description), which currently apply to UHS.
j. Provide a list of instruments (with a short description) associated with automatic
or alarm functions for the UHS.
k. Provide a list of any design change (with a short description) performed on the
UHS since the last Heat Sink Performance Inspection.
7. An updated schedule of all inspections, cleanings, maintenance, or testing of any
safety-related plant heat exchanger to be performed during the on-site portion of the
inspection.
III Information Requested to be Available on First Day of Inspection, November 14, 2016:
1. For both units, please provide a computer copy of UFSAR, Technical Specifications
and Bases, and Technical Requirements Manual.
2. For the specific heat exchangers selected.
a. 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).
b. Copies of the two most recent completed tests and evaluation data confirming
thermal performance for those heat exchangers which are performance tested.
c. 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.
d. Information regarding any alarms which monitor online performance.
e. Copy of the document describing the inspection results of each heat exchanger.
The requested documents are to be for the time period from the onsite inspection
period back to the documents that were provided in response to the previous
Heat Sink Performance Inspection.
f. The cleaning and inspection maintenance schedule for each heat exchanger for
the next 5 years.
g. Copy of the design specification and heat exchanger data sheets for each heat
exchanger.
3
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
h. Copy of the vendor manuals including component drawings for each heat exchanger.
i. 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.
j. Copy of the operating procedure that ensures that the maximum cooling water
system inlet temperature limit is not exceeded.
k. Copy of the calculations or documents which evaluate the potential for water
hammer in each heat exchanger or associated piping.
l. Copy of the calculations that evaluate excessive tube vibration in each heat
exchanger and the documents that describe the controls that prevent heat
exchanger degradation due to excessive flow induced vibration during operation.
m. Copy of the periodic flow testing at or near maximum design flow. The requested
documents are to be for the time period from the onsite inspection period back to
the documents that were provided in response to the previous Heat Sink
Performance Inspection.
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. 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).
q. Copies of those documents that describe the methods taken to control water
chemistry in the heat exchangers.
3. For the UHS including the Emergency Cooling Water Intake Pipe:
a. Copies of the inspection procedures of the rip rap protection placed on excavated
side slopes and the associated results. The requested documents are to be for
the time period from the onsite inspection period back to the documents that
were provided in response to the previous Heat Sink Performance Inspection.
b. Copies of the dam inspection procedures that monitor the integrity of the heat
sink and the associated results. The requested documents are to be for the time
period from the onsite inspection period back to the documents that were
provided in response to the previous Heat Sink Performance Inspection.
c. Copies of calculations and surveillances that demonstrate the UHS reservoir
capacity and heat transfer capability including the Emergency Cooling Water
Intake Pipe.
d. Copies of the inspection procedures for the verification of the structural integrity of
underwater UHS and the associated results. The requested documents are to be
for the time period from the onsite inspection period back to the documents that
were provided in response to the previous Heat Sink Performance Inspection.
4
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
e. Copies of the maintenance and/or inspection procedures for underwater UHS
sediment intrusion and the associated results including underwater diving
inspections and/or sediment removal activities. The requested documents are
to be for the time period from the onsite inspection period back to the documents
that were provided in response to the previous Heat Sink Performance Inspection.
f. Copies of the procedures used for verifying that adjacent non-seismic or
nonsafety-related structures cannot degrade or block safety-related flow paths
during severe weather or seismic events.
g. Copy of the calculation associated with the structural integrity of the UHS. The
requested documents are to be for the time period from the onsite inspection
period back to the documents that were provided in response to the previous
Heat Sink Performance Inspection.
4. For the review associated with the system walkdown of the service water intake
structure:
a. Copies of corrective maintenance for the last 6 years associated with service
water strainers, traveling screens and trash racks.
b. Copies of the last two inspections and/or surveillances associated with service
water strainers, traveling screens and trash racks.
c. List of preventive maintenance, including frequency, associated with service
water strainers, traveling screens and trash racks.
d. Copies of abnormal procedures for the traveling screens and service water
strainers.
e. Copies of the last two inspections and/or surveillances documenting that
component mounts have not excessively degraded (i.e., due to corrosion). For
example, inspections for the mounts for the, Service water pumps, service water
strainers, traveling screens and trash racks.
f. Copies of the documents associated with the monitoring, trending, and
remediation of silt accumulation at the service water pump bay.
g. Copies of surveillance procedures and testing results performed on the service
water pump bay water level instruments. The requested documents are to be for
the time period from the onsite inspection period back to the documents that
were provided in response to the previous Heat Sink Performance Inspection.
h. Copies of procedures associated with operating during adverse weather
conditions (e.g., icing, high temperatures, or low level).
i. Copy of the evaluation for the potential effects of low flow/level on underwater
weir walls intended to limit silt or sand intake, if applicable.
If any of the information requested above will not be available, please contact Gerard ODwyer
as soon as possible at 630-829-9624 or e-mail at Gerard.ODwyer@nrc.gov.
5
S. Northard -2-
All requested documents are to be for the time period from the onsite inspection period back
to the documents that were provided in response to the previous 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. 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 onsite inspection.
We understand that our licensing contact for this inspection is Pamela Johnson of your organization
and she has been informed that the lead inspector for this inspection is Gerard ODwyer. If there
are any questions about the inspection or the material requested in the enclosure, please contact
the lead inspector at 630-829-9624 or via e-mail at Gerard.ODwyer@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 (10 CFR) 2.390, Public
Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy
of this letter, its enclosure, and your response (if any) will be available electronically for public
inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS)
component of the NRC's Agencywide Documents Access and Management 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/
Gerard ODwyer, Reactor Inspector
Engineering Branch 2
Division of Reactor Safety
Docket Nos. 50-282, 50-306
Enclosure:
Triennial Heat Sink Performance Inspection
Document Request
cc: Distribution via LISTSERV
DISTRIBUTION: Cynthia Pederson Linda Linn
Jeremy Bowen Darrell Roberts DRPIII
RidsNrrPMPrairieIsland Resource Richard Skokowski DRSIII
RidsNrrDorlLpl3-1 Resource Allan Barker
RidsNrrDirsIrib Resource Carole Ariano
ADAMS Accession Number ML16265A156
Publicly Available Non-Publicly Available Sensitive Non-Sensitive
To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" = Copy with attach/encl "N" = No copy
OFFICE RIII RIII RIII RIII
NAME GODwyer:cl
DATE 09/20/16
OFFICIAL RECORD COPY