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| =Text= | | =Text= |
| {{#Wiki_filter:August 26, 2021 | | {{#Wiki_filter: |
| Mr. David Rhoades
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| Senior VP, Exelon Generation Company, LLC
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| President and CNO, Exelon Nuclear
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| 4300 Winfield Road
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| Warrenville, IL 60555
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| SUBJECT: QUAD CITIES NUCLEAR POWER STATION - NOTIFICATION OF AN NRC
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND REQUEST FOR
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| INFORMATION; INSPECTION REPORT 05000254/2021004; 05000265/2021004
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| Dear Mr. Rhoades:
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| On December 6, 2021, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite
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| portion of the Triennial Heat Sink Performance Inspection at your Quad Cities Nuclear Power
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| Plant. This inspection will be performed in accordance with NRC baseline Inspection
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| Procedure 71111.07.
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| In order to minimize the impact that the inspection has on the site and to ensure a productive
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| inspection, we have enclosed a request for documents needed for the inspection. The
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| documents have been divided into three groups.
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| The first group lists information necessary for our initial inspection scoping activities. This
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| information should be available to the lead inspector no later than October 11, 2021. By
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| October 25, 2021, the inspector will communicate the initial selected set of approximately
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| 2-3 risk significant heat exchangers.
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| The second group is needed to support our in-office preparation activities. This set of
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| documents, including the calculations associated with the selected heat exchangers, should
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| be available at the Regional Office no later than November 22, 2021. This information
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| should be separated for each selected component, especially if provided electronically (e.g.,
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| folder with component name that includes calculations, condition reports, maintenance
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| history, etc). During the in-office preparation activities, the inspector may identify additional
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| information needed to support the inspection.
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| The last group includes the additional information above as well as plant specific reference
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| material. This information should be available onsite to the inspector on December 6, 2021.
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| It is also requested that corrective action documents and/or questions developed during the
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| inspection be provided to the inspector as the documents are generated.
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| All requested documents are to be for the time period from the onsite inspection period back to
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| the documents that were provided in response to the previous Heat Sink Performance
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| Inspection. If no activities were accomplished in that time period, then the request applies to the
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| last applicable document in the previous time period. It is important that these documents be as
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| complete as possible, in order to minimize the number of documents requested during the
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| preparation week or during the onsite inspection.
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| D. Rhoades -2-
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| The lead inspector for this inspection is Elba Sanchez Santiago. We understand that our
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| licensing contact for this inspection is Richard Swart of your organization. If there are any
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| questions about the inspection or the material requested in the enclosure, please contact the
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| lead inspector at 630-829-9520 or via e-mail at elba.sanchezsantiago@nrc.gov.
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| This letter does not contain new or amended information collection requirements subject to the
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| Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection
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| requirements were approved by the Office of Management and Budget, Control
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| Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to
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| respond to, a request for information or an information collection requirement unless the
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| requesting document displays a currently valid Office of Management and Budget Control
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| Number.
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| In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390, Public
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| Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy of
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| this letter and its enclosure will be available electronically for public inspection in the NRC Public
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| Document Room or from the Publicly Available Records (PARS) component of NRCs
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| Agencywide Documents Access and Management System (ADAMS). ADAMS is accessible
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| from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic
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| Reading Room).
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| Sincerely,
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| Signed by Sanchez Santiago, Elba
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| on 08/26/21
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| Elba Sanchez Santiago, Senior Reactor Inspector
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| Engineering Branch 2
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| Division of Reactor Safety
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| Docket Nos. 50-254; 50-265
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| License Nos. DPR-29; DPR-30
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| Enclosure:
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| Triennial Heat Sink Performance
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| Inspection Document Request
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| cc: Distribution via LISTSERV
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| | |
| D. Rhoades -3-
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| Letter to David Rhoades from Elba Sanchez Santiago dated August 26, 2021.
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| SUBJECT: QUAD CITIES NUCLEAR POWER STATION - NOTIFICATION OF AN NRC
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND REQUEST FOR
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| INFORMATION; INSPECTION REPORT 05000254/2021004; 05000265/2021004
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| DISTRIBUTION:
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| Jessie Quichocho
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| Aaron McCraw
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| RidsNrrDorlLpl3
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| RidsNrrPMQuadCities Resource
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| RidsNrrDroIrib Resource
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| John Giessner
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| Mohammed Shuaibi
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| Jamnes Cameron
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| Allan Barker
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| DRPIII
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| DRSIII
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| ADAMS Accession Number: ML21238A314
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| Publicly Available Non-Publicly Available Sensitive Non-Sensitive
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| OFFICE RIII
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| NAME ESanchezSantiago:
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| mb
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| DATE 08/26/2021
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| OFFICIAL RECORD COPY
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| Inspection Report: 05000254/2021004; 05000265/2021004
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| Inspection Dates: December 6 - 10, 2021
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| Inspection Procedure: IP 71111.07, Heat Sink Performance
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| Lead Inspector: Elba Sanchez Santiago
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| 630-829-9520
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| elba.sanchezsantiago@nrc.gov
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| I. Information Requested by October 11, 2021:
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| 1. List of the Generic Letter (GL) 89-13, Service Water System Problems Affecting
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| Safety-Related Equipment, heat exchangers in order of risk significance.
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| 2. Copy of heat exchanger performance trending data tracked for each GL 89-13
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| heat exchanger.
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| 3. List of corrective action program documents (with a short description) associated
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| with GL 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, or heat
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| exchanger testing, for the previous 3 years or since the last corrective action
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| program document list was sent to the NRC for the previous heat sink
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| performance inspection. The list should include all corrective action program
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| documents not on the last corrective action program document list.
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| 4. Copy of any self-assessment done on any of GL 89-13 heat exchangers.
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| 5. Last two System Health Report(s) and maintenance rule system notebooks for all
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| the GL 89-13 heat exchangers.
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| 6. List of engineering-related operator workarounds (with a short description)
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| associated with GL 89-13 heat exchangers. The requested documents are to be
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| for the time period from the onsite inspection period back to the documents that
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| were provided in response to the previous heat sink performance inspection.
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| 7. List of permanent and temporary modifications (with a short description)
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| associated with GL 89-13 heat exchangers. The requested documents are to be
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| for the time period from the onsite inspection period back to the documents that
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| were provided in response to the previous heat sink performance inspection.
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| II. Information Requested by November 22, 2021:
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| 1. Copies of the GL 89-13 responses.
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| 2. Copy of the Updated Final Safety Analysis Report (UFSAR) section applicable to
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| the GL 89-13 Heat Exchanger Program.
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| Enclosure
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| 3. Copies of procedures developed to implement the recommendations of GL 89-13
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| (e.g. the GL 89-13 Heat Exchanger Program description).
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| 4. Copies of the selected corrective action program documents.
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| 5. For the specific heat exchangers selected:
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| a. Copies of the UFSAR sections applicable for each heat exchanger.
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| b. Copy of system description and design basis document for the heat
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| exchangers (as applicable).
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| c. Provide a list of calculations (with a short description) which currently apply to
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| each heat exchanger.
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| i. establish the limiting design basis heat load required to be removed by
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| each of these heat exchangers;
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| ii. demonstrate the heat exchangers capacity to remove the limiting heat
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| load;
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| iii. correlate surveillance testing and/or inspection results from these heat
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| exchangers with design basis heat removal capability (e.g., basis for
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| surveillance test and/or inspection acceptance criteria);
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| iv. evaluate the potential for water hammer in each heat exchanger or
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| associated piping; and
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| v. evaluate excessive tube vibration in each heat exchanger.
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| d. Copy of any operability determinations or other documentation of degradation
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| associated with the heat exchangers or the systems that support the
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| operation for the selected heat exchangers.
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| e. Copy of the construction code, Design Specification, heat exchanger data
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| sheets, and vendor documents including component drawings applicable for
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| the heat exchangers.
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| f. Copies of normal, abnormal, and emergency operating procedures
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| associated with the selected heat exchangers.
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| 6. For the ultimate heat sink (UHS) and the safety-related service water system (or
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| equivalent):
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| a. Copies of the applicable UFSAR sections.
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| b. Copy of system description and design basis document (as applicable).
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| c. Copy of any operability determinations or other documentation of degradation
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| associated with the UHS and the safety-related service water system.
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| 2
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| d. Copy of the document (e.g. UFSAR or Technical Requirements Manual) that
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| states the maximum cooling water system inlet temperature limit that still
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| allows full licensed power operation of the nuclear reactor.
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| e. Copy of system description and design basis document (as applicable).
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| f. Copy of the construction code and Design Specification.
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| g. Copies of normal, abnormal, and emergency operating procedures
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| associated with the UHS and safety-related service water systems including
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| procedures for loss of these systems.
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| h. Copies of corrective action documents associated with water hammer or
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| hydraulic transients in the service water system since the last Heat Sink
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| Inspection.
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| i. If available, provide an electronic copy of piping and instrumentation
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| diagrams (P&IDs) for the service water system, including the intake structure.
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| j. Provide a list of calculations (with a short description), which currently apply
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| to UHS and safety-related service water system.
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| k. Provide a list of instruments (with a short description) associated with
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| automatic or alarm functions for the safety-related service water system
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| and/or UHS.
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| l. Provide a list of any design change (with a short description) performed on
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| the UHS or safety-related service water system since the last heat sink
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| performance inspection.
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| 7. A schedule of all inspections, cleanings, maintenance, or testing of any
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| safety-related plant heat exchanger to be performed during the onsite portion of
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| the inspection.
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| III. Information Requested to Be Available on First Day of Inspection,
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| December 6, 2021:
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| 1. For the specific heat exchangers selected:
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| a. Copy of the calculation which correlates surveillance testing results from
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| these heat exchangers with design basis heat removal capability (e.g. basis
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| for surveillance test acceptance criteria).
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| b. Copies of the two most recent completed tests and evaluation data
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| confirming thermal performance for those heat exchangers which are
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| performance tested.
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| c. Documentation and procedures that identify the types, accuracy, and location
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| of any special instrumentation used for the two most recently completed
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| thermal performance tests for the heat exchangers (e.g., high accuracy
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| ultrasonic flow instruments or temperature instruments). Include calibration
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| 3
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| records for the instruments used during these tests.
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| d. Information regarding any alarms which monitor on-line performance.
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| e. Copy of the document describing the inspection results of each heat
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| exchanger. The requested documents are to be for the time period from the
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| onsite inspection period back to the documents that were provided in
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| response to the previous heat sink performance inspection.
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| f. The cleaning and inspection maintenance schedule for each heat exchanger
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| for the next five years.
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| g. Copy of the Design Specification and heat exchanger data sheets for each
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| heat exchanger.
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| h. Copy of the vendor manuals including component drawings for each heat
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| exchanger.
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| i. Copy of the calculation which establishes the limiting (maximum) design
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| basis heat load which is required to be removed by each of these heat
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| exchangers.
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| j. Copy of the operating procedure that ensures that the maximum cooling
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| water system inlet temperature limit is not exceeded.
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| k. Copy of the calculations or documents which evaluate the potential for water
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| hammer in each heat exchanger or associated piping.
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| l. Copy of the calculations that evaluate excessive tube vibration in each heat
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| exchanger and the documents that describe the controls that prevent heat
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| exchanger degradation due to excessive flow induced vibration during
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| operation.
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| m. Copy of the periodic flow testing at or near maximum design flow. The
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| requested documents are to be for the time period from the onsite inspection
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| period back to the documents that were provided in response to the previous
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| heat sink performance inspection.
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| n. Copy of the document which identifies the current number of tubes in service
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| for each heat exchanger and the supporting calculation which establishes the
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| maximum number of tubes which can be plugged in each heat exchanger.
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| o. Copy of the document establishing the repair criteria (plugging limit) for
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| degraded tubes which are identified in each heat exchanger.
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| p. Copies of the documents that verify the structural integrity of the heat
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| exchanger (e.g. eddy current summary sheets, ultrasonic testing results, and
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| visual inspection results).
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| q. Copies of those documents that describe the methods taken to control water
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| chemistry in the heat exchangers.
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| 4
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| 2. For the review of the performance testing of the safety-related service water
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| system (or equivalent) and the UHS:
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| a. Copies of the last two performance tests, such as the ASME in-service test,
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| for the pumps, valves, and, if applicable, the towers fans in the safety-related
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| service water system. If the components are not performance tested, please
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| provide documentation verifying performance by the methods actually used.
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| b. Copies of the documents that demonstrate that flow balance testing was
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| performed during the last three years. If the last flow test was performed
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| longer than three years, then provide the last flow test.
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| c. Copies of the documents that demonstrate that flow balance testing will
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| continue to be periodically done in the future.
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| d. Copies of procedures used to monitor interface valves between the safety
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| related section of the service water system and the non-safety related section
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| and the associated results. The requested documents are to be for the time
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| period from the onsite inspection period back to the documents that were
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| provided in response to the previous heat sink performance inspection.
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| e. Copies of the procedures that verify the performance of risk significant
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| non-safety functions and the associated results. The requested documents
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| are to be for the time period from the onsite inspection period back to the
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| documents that were provided in response to the previous heat sink
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| performance inspection.
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| 3. For the review associated with the system walkdown of the service water intake
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| structure:
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| a. Copies of corrective maintenance for the last six years associated with
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| service water strainers, traveling screens and trash racks.
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| b. Copies of the last two inspections and/or surveillances associated with
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| service water strainers, traveling screens and trash racks.
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| c. List of preventive maintenance, including frequency, associated with service
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| water strainers, traveling screens and trash racks.
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| d. Copies of abnormal procedures for the traveling screens and service water
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| strainers.
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| e. Copies of the last two inspections and/or surveillances documenting that
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| component mounts have not excessively degraded (i.e., due to corrosion).
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| For example, inspections for the mounts for the, Service water pumps,
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| service water strainers, traveling screens and trash racks.
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| f. Copies of the documents associated with the monitoring, trending, and
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| remediation of silt accumulation at the service water pump bay.
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| 5
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| TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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| g. Copies of surveillance procedures and testing results performed on the
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| service water pump bay water level instruments. The requested documents
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| are to be for the time period from the onsite inspection period back to the
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| documents that were provided in response to the previous heat sink
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| performance inspection.
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| h. Copies of procedures associated with operating during adverse weather
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| conditions (e.g. icing, high temperatures, or low level).
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| i. Copy of the evaluation for the potential effects of low flow/level on underwater
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| weir walls intended to limit silt or sand intake, if applicable.
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| If the information requested above will not be available, please contact Elba Sanchez Santiago
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| as soon as possible at 630-829-9520 or e-mail elba.sanchezsantiago@nrc.gov.
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| 6
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| }} | | }} |
