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Category:Inspection Plan
MONTHYEARML24032A2182023-09-0101 September 2023 Information Request, Security IR 2024401 IR 05000397/20230052023-08-22022 August 2023 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2023005) - Mid Year Letter IR 05000397/20220062023-03-0101 March 2023 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2022006) ML23019A2482023-01-19019 January 2023 Inservice Inspection Request for Information ML22242A1082022-08-30030 August 2022 Information Request, Information Request, Security IR 2022404 ML22230C7392022-08-23023 August 2022 2022 Mid-Cycle Planning Letter IR 05000397/20210062022-03-0202 March 2022 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2021006) ML21277A3572021-10-12012 October 2021 CGS Brq RFI Letter, Columbia Generating Station - Notification of Inspection (NRC Inspection Report 05000397/2021004) and Request for Information ML21230A3892021-09-0101 September 2021 Mid-Cycle Inspection Plan Transmittal Letter 2021 ML21111A0282021-04-21021 April 2021 _ Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000397/2021011) and Request for Information ML21104A3032021-04-0808 April 2021 Inspection Report 05000397/2021010, Information Request Biennial Problem Identification and Resolution Inspection ML21082A3042021-03-23023 March 2021 Request for Information: Columbia Generating Station, Dated March 11, 2021, Inspection Report 05000397/2021-002, Occupational Radiation Safety Inspection-1,2,3,PI IR 05000397/20200062021-03-0303 March 2021 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2020006) ML20353A1822020-12-18018 December 2020 Notification of NRC Triennial Heat Exchanger/Heat Sink Performance Inspection (05000397/2021001) and Request for Information IR 05000397/20200052020-09-0101 September 2020 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2020005) IR 05000397/20190062020-03-0303 March 2020 CGS2019006 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2019006) ML20049H2622020-02-18018 February 2020 Notification of Cyber Security Inspection (NRC Inspection Report 05000397/2020401) and Request for Information ML19266A5922019-09-23023 September 2019 Notification of Inspection (NRC Inspection Report 05000397/2019004) and Request for Information IR 05000397/20190052019-08-30030 August 2019 Updated Inspection Plan for Columbia Generating Station, Report 05000397/2019005 ML19100A4242019-04-10010 April 2019 Columba - Notification of NRC Design Bases Assurance Inspection Report (Teams) (05000397/2019011) and Initial Request for Information IR 05000397/20180062019-03-0404 March 2019 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2018006 ML18313A0942018-11-0808 November 2018 Notification of NRC Triennial Heat Sink Performance Inspection Report 05000397/2018004) and Request for Information IR 05000397/20180052018-08-31031 August 2018 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2018005) IR 05000397/20170062018-03-0101 March 2018 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2017006) IR 05000397/20170052017-08-28028 August 2017 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2017005) IR 05000397/20160062017-03-0101 March 2017 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2016006) ML16256A2682016-09-12012 September 2016 Errata for Mid-Cycle Assessment Letter for Columbia Generating Station (Report 05000483/2016005) ML16251A1342016-09-0707 September 2016 Notification of Inspection (NRC Integrated Inspection Report 05000397/2016004) and Request for Information ML16239A2412016-08-31031 August 2016 Mid-Cycle Assessment Letter for Columbia Generating Station (Report 05000483/2016005) IR 05000397/20164012016-08-31031 August 2016 Non-Public Security Inspection Plan for Columbia Generating Station (NRC Physical Security Inspection Report Number 05000397/2016401) IR 05000397/20150062016-03-0202 March 2016 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2015006) ML16061A5662016-03-0101 March 2016 Notification of Design Bases Inspection (Programs)(Inspection Report 05000397/2016008) and Initial Request for Information ML16061A5542016-03-0101 March 2016 Notification of NRC Design Bases Inspection (05000397/2016007) and Initial Request for Information IR 05000397/20154012015-09-0101 September 2015 Non-Public Security Inspection Plan for Columbia Generating Station (NRC Physical Security Inspection Report Number 05000397/2015401) IR 05000397/20150052015-09-0101 September 2015 Mid-Cycle Assessment Letter for Columbia Generating Station (Report 05000397/2015005) IR 05000397/20144022014-09-0202 September 2014 Non-Public Security Inspection Plan for Columbia Generating Station (NRC Physical Security Inspection Report Number 05000397/2014402) IR 05000397/20140062014-09-0202 September 2014 Mid-Cycle Assessment Letter for Columbia Generating Station (Report 05000397/2014006) ML14219A7512014-08-0707 August 2014 Notification of Evaluations of Changes, Tests, and Experiments, and Permanent Plant Modifications Inspection (05000397-14-005) and Request for Information IR 05000397/20130012014-03-0404 March 2014 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2013001) IR 05000397/20130062013-09-0303 September 2013 Mid-Cycle Assessment Letter Columbia Generating Station (Report 05000397-13-006) IR 05000397/20128012013-03-0404 March 2013 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2012801) IR 05000397/20120062012-09-0404 September 2012 Mid-Cycle Assessment Letter for Columbia Generating Station (Report 05000397/2012006) IR 05000397/20120012012-03-0505 March 2012 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2012001) ML1124306472011-09-0101 September 2011 Mid-Cycle Performance Review and Inspection Plan - Columbia Generating Station ML1112907052011-05-0606 May 2011 Notification of Inspection (IR 05000397-11-004) and Request for Information ML1024403712010-09-0101 September 2010 Mid-Cycle Performance Review and Inspection Plan - Columbia Generating Station IR 05000397/20100012010-03-0303 March 2010 Annual Assessment Letter - Columbia Generating Station (Report 05000397-10-001) ML0924000972009-09-0101 September 2009 9/1/2009 Columbia 2009 Midcycle Performance Review and Inspection Plan IR 05000397/20090012009-03-0404 March 2009 Annual Assessment Letter and Inspection Plan 2008 - Columbia Generating Station (NRC Report 05000397/2009001) ML0824606282008-09-0202 September 2008 2008 Midcycle Assessment Letter Columbia Generating Station 2023-09-01
[Table view] Category:Letter
MONTHYEARGO2-24-004, License Amendment Request to Revise Emergency Plan2024-01-30030 January 2024 License Amendment Request to Revise Emergency Plan IR 05000397/20230042024-01-29029 January 2024 Integrated Inspection and Independent Spent Fuel Storage Installation Report 05000397/2023004 and 07200035/2023001 GO2-24-003, Relief Requests for the Columbia Generating Station Fifth Ten-Year Interval Inservice Testing2024-01-29029 January 2024 Relief Requests for the Columbia Generating Station Fifth Ten-Year Interval Inservice Testing ML24011A1522024-01-10010 January 2024 March 2024 Emergency Preparedness Exercise Inspection-Request for Information GO2-24-005, Docket No. 50-397 Supplement to Reply to a Notice of Violation; EA-21-1702024-01-0808 January 2024 Docket No. 50-397 Supplement to Reply to a Notice of Violation; EA-21-170 GO2-23-136, Guarantee of Payment of Deferred Premium2023-12-20020 December 2023 Guarantee of Payment of Deferred Premium GO2-23-135, Notice of Readiness for Supplemental Inspection2023-12-14014 December 2023 Notice of Readiness for Supplemental Inspection GO2-23-130, Reply to a Notice of Violation; EA-23-0542023-12-14014 December 2023 Reply to a Notice of Violation; EA-23-054 GO2-23-105, Licensing Basis Document Update and Biennial Commitment Change Report2023-12-12012 December 2023 Licensing Basis Document Update and Biennial Commitment Change Report ML23288A0002023-12-0707 December 2023 Issuance of Amendment No. 272 to Adopt TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position GO2-23-107, Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation2023-12-0505 December 2023 Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation GO2-23-126, Docket No. 50-397 Voluntary Response to Regulatory Issue Summary 2023-012023-11-28028 November 2023 Docket No. 50-397 Voluntary Response to Regulatory Issue Summary 2023-01 GO2-23-121, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-11-27027 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation IR 05000397/20230122023-11-20020 November 2023 Commercial Grade Dedication Inspection Report 05000397/2023012 ML23311A2082023-11-0909 November 2023 Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV IR 05000397/20230102023-11-0909 November 2023 Biennial Problem Identification and Resolution Inspection Report 05000397/2023010 IR 05000397/20230932023-11-0101 November 2023 Final Significance Determination of a White Finding, Notice of Violation and Follow-Up Assessment Letter; NRC Inspection Report 05000397/2023093 ML23299A2072023-10-26026 October 2023 Biennial Requalification Inspection Request for Information IR 05000397/20230032023-10-25025 October 2023 Integrated Inspection Report 05000397/2023003 IR 05000397/20230112023-10-0404 October 2023 License Renewal Phase 2 Report 05000397/2023011 IR 05000397/20234012023-09-11011 September 2023 Security Baseline Inspection Report 05000397/2023401 GO2-23-097, In-Service Inspection Summary Report for the Twenty-Sixth Refueling Outage (R26)2023-09-0606 September 2023 In-Service Inspection Summary Report for the Twenty-Sixth Refueling Outage (R26) ML24032A2182023-09-0101 September 2023 Information Request, Security IR 2024401 GO2-23-100, Technical Specification Section 5.6.4 Post Accident Monitoring Instrumentation 14-Day Report for Inoperable Suppression Pool Level Indication2023-08-31031 August 2023 Technical Specification Section 5.6.4 Post Accident Monitoring Instrumentation 14-Day Report for Inoperable Suppression Pool Level Indication GO2-23-056, Application to Revise Technical Specifications to Adopt TSTF-230, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling2023-08-29029 August 2023 Application to Revise Technical Specifications to Adopt TSTF-230, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling IR 05000397/20230052023-08-22022 August 2023 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2023005) - Mid Year Letter IR 05000397/20230022023-08-0101 August 2023 Integrated Inspection Report 05000397/2023002 GO2-23-093, Supplement to Reply to a Notice of Violation: EA-21-1702023-07-27027 July 2023 Supplement to Reply to a Notice of Violation: EA-21-170 ML23206A2442023-07-25025 July 2023 Energy Northwest Columbia Generating Station, Response to Apparent Violation in NRC Inspection Report 05000397/2023092; EA-23-054 GO2-23-068, Notification of Completion of Commitments Required Prior to Entry Into the Period of Extended Operation2023-07-19019 July 2023 Notification of Completion of Commitments Required Prior to Entry Into the Period of Extended Operation GO2-23-090, Reply to a Notice of Violation2023-07-12012 July 2023 Reply to a Notice of Violation ML23143A1202023-06-27027 June 2023 Request Number 4ISI-11 to the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Regarding Alternate Examination of Reactor Vessel Welds GO2-23-073, Notification of NPDES Permit Issuance2023-06-26026 June 2023 Notification of NPDES Permit Issuance ML23163A2502023-06-12012 June 2023 Summary of Changes and Analysis for Revision 41 of Plant Procedures Manual 13.8.1 Emergency Dose Projection System Operations GO2-23-072, Cycle 27 Core Operating Limits Report2023-06-0505 June 2023 Cycle 27 Core Operating Limits Report ML23157A2702023-06-0101 June 2023 4-2022-011 -022 Letter - OI Closure to Licensee IR 05000397/20230922023-06-0101 June 2023 NRC Inspection Report 05000397/2023092 and Preliminary White Finding IR 05000397/20230902023-06-0101 June 2023 Final Significance Determination of a White Finding, Notice of Violation and Follow-Up Assessment Letter; NRC Inspection Report 05000397/2023090 GO2-23-055, Independent Spent Fuel Storage Installation, 2022 Annual Radiological Environmental Operating Report2023-05-15015 May 2023 Independent Spent Fuel Storage Installation, 2022 Annual Radiological Environmental Operating Report IR 05000397/20230012023-05-0505 May 2023 Integrated Inspection Report 05000397/2023001 - April 26, 2023 GO2-23-006, License Amendment Request to Clean-Up Operating License and Appendix a Technical Specifications2023-05-0101 May 2023 License Amendment Request to Clean-Up Operating License and Appendix a Technical Specifications IR 05000397/20233012023-05-0101 May 2023 NRC Examination Report 05000397/2023301 GO2-23-053, 2022 Annual Environmental Operating Report2023-04-26026 April 2023 2022 Annual Environmental Operating Report GO2-23-057, 2022 Annual Radioactive Effluent Release Report2023-04-25025 April 2023 2022 Annual Radioactive Effluent Release Report ML23110A2642023-04-20020 April 2023 Request for Information License Renewal Phase 2 Inspection GO2-23-012, Application to Revise Technical Specifications to Adopt Tstf-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position2023-03-27027 March 2023 Application to Revise Technical Specifications to Adopt Tstf-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position GO2-23-041, Generation Station - Level of Financial Protection - Annual Reporting Requirement2023-03-15015 March 2023 Generation Station - Level of Financial Protection - Annual Reporting Requirement GO2-23-038, Plant Decommissioning Fund Status Report2023-03-15015 March 2023 Plant Decommissioning Fund Status Report ML23013A0812023-03-15015 March 2023 Issuance of Amendment No. 270 Revision to Technical Specifications to Adopt TSTF 505, Revision 2, Provide Risk-Informed Extended Completion Times-RITSTF Initiative 4B GO2-23-034, Report of Changes or Errors in Emergency Core Cooling System Loss of Coolant Accident Analysis Models Pursuant to 10 CFR 50.462023-03-13013 March 2023 Report of Changes or Errors in Emergency Core Cooling System Loss of Coolant Accident Analysis Models Pursuant to 10 CFR 50.46 2024-01-08
[Table view] |
See also: IR 05000397/2021001
Text
December 18, 2020
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 EXCHANGER/HEAT SINK PERFORMANCE INSPECTION
(05000397/2021001) 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 the triennial portion of the heat exchanger/heat sink performance inspection at your
Columbia Generating Station from February 8 to February 12, 2021. The onsite phase of 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 (IP) 71111,
Attachment 07, Heat Exchanger/Heat Sink Performance, dated January 1, 2021.
The objectives of the inspection are to verify that: (1) any potential heat exchanger deficiencies
which could mask degraded performance are identified; (2) any potential common-cause heat
sink performance problems that have the potential to increase risk are identified; and (3) the
licensee has adequately identified and resolved heat sink performance problems that could
result in initiating events or affect multiple heat exchangers in mitigating systems and thereby
increase risk.
To minimize the impact the inspection has on the site and to ensure an efficient inspection, we
have enclosed a request for documents needed for the inspection. It is important that these
requests are fulfilled as completely and accurately as possible to minimize any additional
requests during the preparation week or during the onsite 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
December 28, 2020. By January 4, 2021, the lead inspector will communicate
the initial selected set of 2-4 risk significant or safety-related heat exchangers
and/or heat sinks.
B. Sawatzke 2
- The second group of documents requested includes those items needed to support our
in-office preparation activities. This set of documents, including the calculations
associated with the selected heat exchangers and/or heat sinks, should be available no
later than January 25, 2021. This information should be separated for each selected
component, especially if provided electronically. Note that the inspector(s) may identify
additional information needed to support the inspection during this week and will
communicate those requests as soon as practicable
- The third group of documents requested includes the additional documentation identified
during in-office preparation activities as well as other resource requests necessary to
support our onsite inspection activities. The additional information or resources should
be available throughout the week of onsite inspection activities beginning on
February 8, 2021.
All requested documents are to be for the time period from the onsite inspection period back to
the last triennial heat exchanger/heat sink performance inspection. If nothing addressing a
request was done in that time period, then the request applies to the last applicable document.
If a request does not apply for any heat exchanger/heat sink sample, no response is necessary.
Include all attachments to the requests, especially corrective action program documents.
We have discussed the schedule for this inspection with your staff and understand that our
regulatory contact for this inspection will be Valerie Lagen of your Regulatory Affairs
organization. If there are any questions about this inspection or the documents requested,
please contact the lead inspector, Wayne Sifre, by telephone at 817-200-1193 or by e-mail at
Wayne.Sifre@nrc.gov.
PAPERWORK REDUCTION ACT STATEMENT
This letter contains mandatory information collections that are subject to the Paperwork
Reduction Act of 1995 (44 U.S.C. 3501 et seq.). The Office of Management and Budget (OMB)
approved these information collections (approval number 3150-0011). Send comments
regarding this information collection to the Information Services Branch, Office of the Chief
Information Officer, Mail Stop: T6 A10M, U.S. Nuclear Regulatory Commission, Washington,
DC 20555-0001, or by e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office
of Information and Regulatory Affairs, NEOB-10202, (3150-0011) Office of Management and
Budget, Washington, DC 20503.
PUBLIC PROTECTION NOTIFICATION
The NRC may not conduct nor 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 OMB control number.
B. Sawatzke 3
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 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,
Digitally signed by Vincent G.
Vincent G. Gaddy Gaddy
Date: 2020.12.18 12:41:06 -06'00'
Vincent G. Gaddy, Chief
Engineering Branch 1
Division of Reactor Safety
Docket No. 50-397
License No. NPF-21
Enclosure:
Triennial Heat Exchanger/Heat Sink
Performance Inspection Request for
Information
cc w/ encl: Distribution via LISTSERV
ML20353A182
Non-Sensitive Publicly Available
SUNSI Review
WCS Sensitive Non-Publicly Available
OFFICE DRS:EB1 DRS:EB1
NAME WSifre WCS VGaddy VG
DATE 12/18/2020 12/18/2020
Request for Information
Triennial Heat Exchanger/Heat Sink Performance Inspection
Columbia Generating Station
Inspection Report: 05000397/2021001
Inspection Dates: February 8 to February 12, 2021
Inspection Procedure: IP 71111.07, Triennial Heat Exchanger/Heat Sink Performance
Inspector(s): Wayne Sifre, Senior Reactor Inspector
Wes Cullum, Reactor Inspector
I. Information Requested by December 28, 2021:
1. Heat exchanger/heat sink program documents, including Generic Letter (GL) 89-13 or
aging management programs
2. Responses to GL 89-13
3. Different requirements and/or commitments related to GL 89-13 or aging management
programs
4. Heat exchanger/heat sink program self-assessments
5. Updated final safety analysis report (UFSAR), technical specifications (TSs), and TS
bases
6. List of heat exchangers in order of risk significance
7. List of corrective action program documents related to heat exchangers/heat sinks
II. Information Requested by January 25, 2021:
1. For the selected heat exchangers that are directly cooled by the service water system:
a. Performance testing (or equivalent method) documentation, including procedure
b. Periodic flow testing and/or balancing documentation, including procedure
c. Inspection (visual, eddy-current, etc.) and cleaning documentation, including
procedure
d. Tube plugging map
e. Biotic fouling and macrofouling treatment documentation, including procedure
f. Relevant design basis calculations
Enclosure
g. Applicable system health report and design basis document
h. Relevant system piping and instrumentation diagrams
i. Heat exchanger design specification and heat exchanger data sheet
j. Heat exchanger preventive maintenance schedule
2. For the selected heat exchangers that are directly cooled by a closed loop cooling water
system:
a. Periodic flow testing and/or balancing documentation, including procedure
b. Inspection (visual, eddy-current, etc.) and cleaning documentation, including
procedure
c. Tube plugging map
d. Evaluation of potential for water hammer
e. Chemical treatment documentation, including procedure
f. Relevant design basis calculations
g. Applicable system health report and design basis document
h. Relevant system piping and instrumentation diagrams
i. Heat exchanger design specification and heat exchanger data sheet
j. Heat exchanger preventive maintenance schedule
3. For the selected ultimate heat sink (UHS):
a. Forced draft cooling tower or spray pond UHS:
i. Calculations demonstrating sufficient reservoir capacity
ii. Documentation of periodic monitoring and trending of sediment, including
procedures
iii. Performance monitoring documentation of heat transfer capability,
including procedures
iv. Performance monitoring documentation of UHS structural integrity,
including procedures
b. Operation of the service water system (SWS) and UHS:
i. List of modifications to the SWS and UHS
2
ii. Procedures for a loss of SWS or UHS
iii. Biotic fouling and macrofouling treatment documentation, including
procedures
iv. Chemistry monitoring documentation, including procedures
v. Evaluation of strong-pump to weak-pump interactions
c. Performance testing of the SWS and UHS:
i. Inservice testing documentation of SWS/UHS pumps, valves, and fans,
including procedures
ii. Service water flow balance test documentation, including procedures
iii. Diagnostic testing documentation for valves that interface with safety-
related service water and nonsafety-related or nonseismic piping systems
iv. Performance testing documentation of risk-significant, nonsafety-related
functions (or alignments), including procedures
d. Service water and/or closed cooling water system:
i. Inaccessible pipe testing, inspection (visual, ultrasonic, etc.), and/or
monitoring documentation, including procedure
ii. Evaluations of active thru wall pipe leaks
iii. Corrective action documents related to thru wall pipe leakage, including
trend evaluations
iv. For closed cooling water systems, trend data on make-up to the system
v. Protective coatings inspection documentation, including procedure
vi. For deep draft vertical pumps, diagnostic testing (or equivalent method)
documentation, including procedures
e. Service water intake structure (SWIS):
i. Preventive maintenance schedule for traveling screens and strainers
ii. Corrective action documents related to traveling screens, strainers, trash
racks, etc.
iii. SWS/UHS normal and abnormal operating procedures
iv. SWIS inspection documentation regarding structural integrity and silting,
including procedure
3
v. Service water pump bay water level instrument documentation related to
setpoints and calibration, including procedures
vi. SWS/UHS water temperature instrumentation documentation related to
setpoints and calibration, including procedures
vii. Evaluations of potential for frazil ice formation
viii. For underwater weir walls, evaluations of potential silt introduction
4. UHS Containment Device or Dam
a. For an above-ground UHS encapsulated by embankments, weirs, or excavated
side slopes:
i. Weir or embankment design documentation
ii. Licensee or third-party dam inspection documentation used to monitor the
integrity or performance of the heat sink
iii. Calculations for sufficient reservoir capacity
iv. Significant debris or sediment build-up monitoring documentation in the
UHS
v. Corrective action program documents related to debris, debris, structural
integrity, seepage, settlement, rip rap, etc.
b. For underwater UHS weirs, structures, or excavations:
i. Underwater weirs, structures, or excavations design documentation
ii. Settlement or movement related to structural integrity and/or capacity
monitoring documentation, including procedures
iii. Sediment intrusion monitoring documentation, including procedures
iv. Calculations for sufficient capacity
v. Corrective action program documents related to settlement, movement,
structural integrity, sediment, etc.
III. Additional Requests During Onsite Inspection Activities
1. Supplemental requests identified during in-office preparation activities
2. Additional requests identified during onsite inspection activities
3. Discussions with relevant subject matter experts
4
4. Walkdowns of selected heat exchanger/heat sink samples
5. Corrective action program documents generated as a result of this inspection
If the information requested above will not be available, please contact Wayne Sifre as soon as
possible.
Inspector Contact Information:
Wayne Sifre Wes Cullum
Senior Reactor Inspector Reactor Inspector
817-200-1193 817-200-1563
Wayne.Sifre@nrc.gov Wes.Cullum@nrc.gov
Mailing Address:
U.S. NRC, Region IV
Attn: Wayne Sifre
1600 East Lamar Blvd.
Arlington, TX 76011-4511
5