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| | issue date = 03/12/2018 | | | issue date = 03/12/2018 |
| | title = Summary of December 5, 2017 Public Teleconference | | | title = Summary of December 5, 2017 Public Teleconference |
| | author name = Chowdhury P, Franovich R L | | | author name = Chowdhury P, Franovich R |
| | author affiliation = NRC/NRO/DNRL/LB1 | | | author affiliation = NRC/NRO/DNRL/LB1 |
| | addressee name = Lee S S | | | addressee name = Lee S |
| | addressee affiliation = NRC/NRO/DNRL/LB1 | | | addressee affiliation = NRC/NRO/DNRL/LB1 |
| | docket = 05200048 | | | docket = 05200048 |
| | license number = | | | license number = |
| | contact person = Franovich R L | | | contact person = Franovich R |
| | document type = Meeting Summary, Memoranda | | | document type = Meeting Summary, Memoranda |
| | page count = 7 | | | page count = 7 |
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| =Text= | | =Text= |
| {{#Wiki_filter:March 12, 2018 | | {{#Wiki_filter:March 12, 2018 MEMORANDUM TO: Samuel S. Lee, Chief Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors FROM: Rani L. Franovich, Senior Project Manager /RA/ |
| | | Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors Prosanta Chowdhury, Project Manager Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors |
| MEMORANDUM TO: Samuel S. Lee, Chief Licensing Branch 1 Division of New Reactor Licensing | |
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| Office of New Reactors FROM: Rani L. Franovich, Senior Project Manager | |
| /RA/ Licensing Branch 1 Division of New Reactor Licensing | |
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| Office of New Reactors Prosanta Chowdhury, Project Manager Licensing Branch 1 Division of New Reactor Licensing | |
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| Office of New Reactors | |
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| ==SUBJECT:== | | ==SUBJECT:== |
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| ==SUMMARY== | | ==SUMMARY== |
| OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC, TO DISCUSS VARIOUS TOPICS RELATED TO CHAPTER 15, "TRANSIENT AND ACCIDENT ANALYSES," AND CHAPTER 2, "SITE CHARACTERISTICS AND SITE PARAMETERS," SECTION 2.5.4, "STABILITY OF SUBSURFACE MATERIALS AND FOUNDATIONS," OF THE NUSCALE DESIGN | | OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC, TO DISCUSS VARIOUS TOPICS RELATED TO CHAPTER 15, TRANSIENT AND ACCIDENT ANALYSES, AND CHAPTER 2, SITE CHARACTERISTICS AND SITE PARAMETERS, SECTION 2.5.4, STABILITY OF SUBSURFACE MATERIALS AND FOUNDATIONS, OF THE NUSCALE DESIGN CERTIFICATION APPLICATION (DOCKET NO. 52-048) |
| | | On December 5, 2017, representatives of the U.S. Nuclear Regulatory Commission (NRC) and NuScale Power, LLC, (NuScale) held a public teleconference meeting. The purpose of this meeting was to discuss the following: |
| CERTIFICATION APPLICATION (DOCKET NO. 52-048) | | : 1. NuScales responses to the NRC staff Requests for Additional Information (RAI) No. |
| | | 8771 related to Final Safety Analysis Report (FSAR) plots which describe the system response during a return to power for the Decay Heat Removal System scenario where Design Certification power is available (Agency Documents Access and Management System (ADAMS) Accession No. ML17146B291); and |
| On December 5, 2017, representatives of the U.S. Nuclear Regulatory Commission (NRC) and NuScale Power, LLC, (NuScale) held a public teleconference meeting. The purpose of this meeting was to discuss the following: | | : 2. NuScales supplemental response to RAI No. 9049 related to FSAR Chapter 2, Site Characteristics and Site Parameters, Section 2.5.4, Stability of Subsurface Materials and Foundations (ADAMS Accession No. ML17320B122). |
| : 1. NuScale's responses to the NRC staff Requests for Additional Information (RAI) No. 8771 related to Final Safety Analysis Report (FSAR) plots which describe the system response during a return to power for the Decay Heat Removal System scenario where Design Certification power is available (Agency Documents Access and Management System (ADAMS) Accession No. ML17146B291); and | | CONTACTS: Prosanta Chowdhury, NRO/DNRL Rani L. Franovich, NRO/DNRL 301-415-1647 301-415-7334 |
| : 2. NuScale's supplemental response to RAI No. 9049 related to FSAR Chapter 2, "Site Characteristics and Site Parameters," Section 2.5.4, "Stability of Subsurface Materials and Foundations" (ADAMS Accession No. ML17320B122). | |
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| CONTACTS: Prosanta Chowdhury, NRO/DNRL Rani L. Franovich, NRO/DNRL 301-415-1647 301-415-7334 | |
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| Another topic involving NuScale's responses to RAI Nos. 9032, 8993, and 9088 related to Chapter 7, "Instrumentation and Controls," was also discussed at a designated time on the agenda. A summary of this portion of the meeting was issued separately under ADAMS Accession No. ML17345A176.
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| A complete copy of NuScale's Design Certific ation Application is available on the NRC public Webpage at https://www.nrc.gov/reactors/new-reactors
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| /design-cert/nuscale/documents.html. Enclosure 1, "Summary of the December 5, 2017, Teleconference between the NRC staff and NuScale," provides a summary of the topics discussed during the teleconference.
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| The agenda and list of meeting attendees are provided in Enclosures 2 and 3, respectively. The meeting notice is available in ADAMS, under Accession No. ML17292B021.
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| Docket No. 52-048 | | S. Lee Another topic involving NuScales responses to RAI Nos. 9032, 8993, and 9088 related to Chapter 7, Instrumentation and Controls, was also discussed at a designated time on the agenda. A summary of this portion of the meeting was issued separately under ADAMS Accession No. ML17345A176. |
| | A complete copy of NuScales Design Certification Application is available on the NRC public Webpage at https://www.nrc.gov/reactors/new-reactors/design-cert/nuscale/documents.html. , Summary of the December 5, 2017, Teleconference between the NRC staff and NuScale, provides a summary of the topics discussed during the teleconference. |
| | The agenda and list of meeting attendees are provided in Enclosures 2 and 3, respectively. The meeting notice is available in ADAMS, under Accession No. ML17292B021. |
| | Docket No. 52-048 |
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| ==Enclosures:== | | ==Enclosures:== |
| : 1. Meeting Summary 2. Agenda | | : 1. Meeting Summary |
| : 3. Attendees | | : 2. Agenda |
| | : 3. Attendees |
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| ML18065B075 *via email NRC-001OFFICE NRO/DNRL/LB1: PM NRO/DNRL/LB1: PM NRO/DNRL/LB1: LA NAME RFranovich PChowdhury MMoore DATE 3/10/2018 3/12/2018 3/07/2018 U.S. NUCLEAR REGULATORY COMMISSION | | ML18065B075 *via email NRC-001 OFFICE NRO/DNRL/LB1: PM NRO/DNRL/LB1: PM NRO/DNRL/LB1: LA NAME RFranovich PChowdhury MMoore DATE 3/10/2018 3/12/2018 3/07/2018 U.S. NUCLEAR REGULATORY COMMISSION |
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| ==SUMMARY== | | ==SUMMARY== |
| OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TOPIC 1: | | OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TOPIC 1: |
| NuScale Power, LLC's Response to Request for Additional Information No. 8771 The U.S. Nuclear Regulatory Commission (NRC) staff discussed NuScale Power, LLC's (NuScale or the applicant) response to Request for Additional Information (RAI) 8771 and asked why the response did not include some Final Safety Analysis Report (FSAR) plots that describe the system response during a return to power for the Decay Heat Removal System scenario where direct current (DC) power is available (sequence of events described in a new Table 15.0-16, untitled and yet to be provided). The plots, such as core average flow as a function of time, are relevant to the NRC staff's review and needed to inform a reasonable assurance finding for the return power analysis in FSAR, Section 15.0.6, "Evaluation of a Return to Power." | | NuScale Power, LLCs Response to Request for Additional Information No. 8771 The U.S. Nuclear Regulatory Commission (NRC) staff discussed NuScale Power, LLCs (NuScale or the applicant) response to Request for Additional Information (RAI) 8771 and asked why the response did not include some Final Safety Analysis Report (FSAR) plots that describe the system response during a return to power for the Decay Heat Removal System scenario where direct current (DC) power is available (sequence of events described in a new Table 15.0-16, untitled and yet to be provided). The plots, such as core average flow as a function of time, are relevant to the NRC staffs review and needed to inform a reasonable assurance finding for the return power analysis in FSAR, Section 15.0.6, Evaluation of a Return to Power. |
| Nuscale acknowledged the relevance of the plots and offered to provide them in a supplemental response to RAI 8771 within a month's time. | | Nuscale acknowledged the relevance of the plots and offered to provide them in a supplemental response to RAI 8771 within a months time. |
| TOPIC 2: | | TOPIC 2: |
| NuScale Supplemental Response to RAI No. 9049 (ML17320B122) | | NuScale Supplemental Response to RAI No. 9049 (ML17320B122) |
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| ==Background:== | | ==Background:== |
| In a category 1 public meeting on October 31, 2017, the NRC staff discussed its feedback on NuScale's response to RAI 9049 (ADAMS Accession No. ML17318A059). | | In a category 1 public meeting on October 31, 2017, the NRC staff discussed its feedback on NuScales response to RAI 9049 (ADAMS Accession No. ML17318A059). |
| | | In the response to RAI 9049, Question 02.05.04-3, the applicant provided information on Maximum Hydrostatic Pressure, Effective Lateral Pressure, Surcharge Loads, and Total Maximum Lateral Soil Pressure, and the applicant made a reference to FSAR Section 3.8.4.3.3, Earth Pressure (H). This response includes a pyramid graph and a table, which were not included in the FSAR. The NRC staff emphasized the need for this information in the FSAR, and on November 16, 2017, the applicant submitted a supplemental response to RAI 9049, Questions 02.05.04-2 and 02.05.04-3 addressing the staffs needs (ADAMS Accession No. ML17320B122). |
| In the response to RAI 9049, Question 02.05.04-3, the applicant provided information on "Maximum Hydrostatic Pressure," "Effective Lateral Pressure," "Surcharge Loads," and "Total Maximum Lateral Soil Pressure," and the applicant made a reference to FSAR Section 3.8.4.3.3, "Earth Pressure (H)." This response includes a pyramid graph and a table, which were not included in the FSAR. The NRC staff emphasized the need for this information in the FSAR, and on November 16, 2017, the applicant submitted a supplemental response to RAI 9049, Questions 02.05.04-2 and 02.05.04-3 addressing the staff's needs (ADAMS Accession No. ML17320B122). | | During the December 5, 2017, category 1 public meeting, the NRC staff provided the following feedback on the applicants supplemental response of November 16, 2017: |
| During the December 5, 2017, category 1 public meeting, the NRC staff provided the following feedback on the applicant's supplemental response of November 16, 2017: | | : 1. Response to RAI 9049, Question 02.05.04-2 was acceptable and the NRC staff will confirm the FSAR markups in the next revision of the design certification application (DCA) when received. |
| : 1. Response to RAI 9049, Question 02.05.04-2 was acceptable and the NRC staff will confirm the FSAR markups in the next revision of the design certification application (DCA) when received. | | : 2. The approach in the response to RAI 9049, Question 02.05.04-3 was acceptable to the extent that the applicant provided proposed markups in FSAR Section 3.8.4.3.3, and most of the details regarding static lateral earth pressure calculation are in the proposed Enclosure 1 |
| : 2. The approach in the response to RAI 9049, Question 02.05.04-3 was acceptable to the extent that the applicant provided proposed markups in FSAR Section 3.8.4.3.3, and most of the details regarding static lateral earth pressure calculation are in the proposed | |
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| Enclosure 1 markups. However, the description of lateral earth pressure in Section 3.8.4.3.3 is still not complete because: (a) it lacks the summary of dynamic earth pressure, and only mentions that it is "developed from the SASSI2010 analyses of the standalone RXB and CRB models," and (b) it did not provide information on total lateral earth pressure to be comprised of both static and dynamic pressures. In RAI 8971, Question 03.08.04-14 related to FSAR Section 3.8.4, "Other Seismic Category I Structures," the NRC staff asked the applicant to provide an evaluation of the dynamic lateral earth pressure.
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| NuScale's response to this RAI Question is expected to address the NRC staff's needs conveyed to NuScale via RAI 9049, Question 02.05.04-3. During the meeting, the staff emphasized the need for the applicant to include in the response to RAI 8971, Question 03.08.04-14, a description on dynamic and total lateral earth pressures, and associated COL information item(s), particularly, since RAI 9049, Question 02.05.04-3 asked for earth pressure induced by both static and seismic loadings, and asked the applicant to provide associated COL information items. The applicant agreed to address these needs. The applicant's response to RAI 8971, Question 03.08.04-14, is scheduled for submission by April 30, 2018.
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| There were no comments by members of the public.
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| Enclosure 2 U.S. NUCLEAR REGULATORY COMMISSION DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC AGENDA Time Topic Speaker 1:00 pm - 1:50 pm NuScale Power, LLC (NuScale) Response to Request for Additional Information (RAI) 8771 NRC/NuScale 1:50 pm - 2:00 pm Public Comments NRC/Public 2:00 pm - 2:20 pm NuScale Response to RAI 9049 NRC/NuScale 2:20 pm - 2:30 pm Public Comments NRC/Public 2:30 pm - 2:50 pm NuScale Response to RAIs 9032, 8993, and 9088 NRC/NuScale 2:50 pm - 3:00 pm Public Comments NRC/Public | |
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| Enclosure 3 LIST OF ATTENDEES NuScale Power, LLC Ben Bristol Yousef Farawila
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| Darrell Gardner Paul Infanger Megan McCloskey Dominic Napolitano
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| Kent Welter Marty Bryan Josh Parker Wayne Massie Jeff Kosky Mohsen Azadbakht
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| U.S. Nuclear Regulatory Commission Staff Rani Franovich Prosanta Chowdhury
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| Rebecca Karas
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| Jeff Schmidt Weijun Wang Robert Riche-Rivera
| | markups. However, the description of lateral earth pressure in Section 3.8.4.3.3 is still not complete because: (a) it lacks the summary of dynamic earth pressure, and only mentions that it is developed from the SASSI2010 analyses of the standalone RXB and CRB models, and (b) it did not provide information on total lateral earth pressure to be comprised of both static and dynamic pressures. In RAI 8971, Question 03.08.04-14 related to FSAR Section 3.8.4, Other Seismic Category I Structures, the NRC staff asked the applicant to provide an evaluation of the dynamic lateral earth pressure. |
| | NuScales response to this RAI Question is expected to address the NRC staffs needs conveyed to NuScale via RAI 9049, Question 02.05.04-3. During the meeting, the staff emphasized the need for the applicant to include in the response to RAI 8971, Question 03.08.04-14, a description on dynamic and total lateral earth pressures, and associated COL information item(s), particularly, since RAI 9049, Question 02.05.04-3 asked for earth pressure induced by both static and seismic loadings, and asked the applicant to provide associated COL information items. The applicant agreed to address these needs. The applicants response to RAI 8971, Question 03.08.04-14, is scheduled for submission by April 30, 2018. |
| | There were no comments by members of the public. |
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| Michael Dudek
| | U.S. NUCLEAR REGULATORY COMMISSION DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC AGENDA Time Topic Speaker NuScale Power, LLC (NuScale) Response to 1:00 pm - 1:50 pm Request for Additional Information (RAI) NRC/NuScale 8771 1:50 pm - 2:00 pm Public Comments NRC/Public 2:00 pm - 2:20 pm NuScale Response to RAI 9049 NRC/NuScale 2:20 pm - 2:30 pm Public Comments NRC/Public NuScale Response to RAIs 9032, 8993, and 2:30 pm - 2:50 pm NRC/NuScale 9088 2:50 pm - 3:00 pm Public Comments NRC/Public Enclosure 2 |
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| Members of the Public Ryan Welch}} | | LIST OF ATTENDEES NuScale Power, LLC Ben Bristol Yousef Farawila Darrell Gardner Paul Infanger Megan McCloskey Dominic Napolitano Kent Welter Marty Bryan Josh Parker Wayne Massie Jeff Kosky Mohsen Azadbakht U.S. Nuclear Regulatory Commission Staff Rani Franovich Prosanta Chowdhury Rebecca Karas Jeff Schmidt Weijun Wang Robert Riche-Rivera Michael Dudek Members of the Public Ryan Welch Enclosure 3}} |
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Category:Meeting Summary
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Public Version ML19242B9342019-06-12012 June 2019 Discussion Topic for June 12, 2019, Public Meeting to Discuss Technical Specifications for the NuScale Design Certification Application ML19151A3382019-06-0505 June 2019 Summary of Public Meeting with NuScale to Discuss ITAAC for the Module Protection System and Safety Display and Indication System ML19087A2402019-05-0606 May 2019 Summary of March 5, 2019 Public Meeting on NuScale EPZ Sizing Methodology TR ML19106A0452019-04-24024 April 2019 Summary of Public Teleconference Held April 15, 2019, Regarding the Inspections, Tests, Analyses, and Acceptance Criteria in NuScale Power Llc'S Design Certification Application ML18340A0132019-04-17017 April 2019 July 24, 2018, Summary of Category 1 Public Teleconference with Nuscale Power, LLC, Design Certification Application Section 3.7, Seismic Design, and 3.8, Design of Category I Structures. ML18348A9442019-04-17017 April 2019 Summary of the Category 1 Public Teleconference with NuScale Power, LLC Design Certification Application Section 3.6.3, Leak-Before-Break Evaluation Procedures, and Section 3.9.4, Control Rod Drive System. ML18333A3612019-04-11011 April 2019 & 08/28/18 Summary of Public Teleconference with Nuscale Power, LLC, Regarding Responses to Staff Requests for Additional Information ML19065A1242019-04-0505 April 2019 Summary of the February 14 and 27, 2019, Public Meeting to Discuss Accident Source Term (AST) Methodology Associated with the Nuscale Design Certification Application ML19085A0412019-03-26026 March 2019 02/13/2019 and 03/06/2019 Summary of Category 1 Public Teleconference with NuScale Power, LLC to Discuss the Progress on Emergency Core Cooling System Valve Test Plans of the Design Certification Application 2024-01-31
[Table view] Category:Memoranda
MONTHYEARML24004A0472024-01-31031 January 2024 U.S. Nuclear Regulatory Commission Summary of the November 16, 2023, Observation Public Meeting to Discuss NuScales Us600 Exemption Request ML20274A1082020-09-30030 September 2020 Summary of September 16, 2020 Public Meeting with NuScale Power, LLC to Discuss Operator Licensing Topics ML20199M1492020-08-19019 August 2020 Memo Transmitting Summary of the July 15, 2020 Pre-Submittal Meeting with NuScale, LLC, Regarding Its Plans to Submit a Topical Report Using Automated Test System ML20219A4112020-08-10010 August 2020 Summary of the May 28, 2020, Category 1 Public Teleconference with NuScale Power, LLC to Discuss Nuscale'S Standard Design Application Control Room Staffing Topical Report-0520-69851 ML20210M0772020-07-28028 July 2020 Memo - Category 1 Public Meeting - Audit Exit NuScale Emergency Core Cooling System Boron Redistribution Issue and Applicable Design Changes ML20160A2472020-07-28028 July 2020 Audit Summary Memo NuScale ECCS Boron Redistribution Issue ML20176A1582020-07-10010 July 2020 Audit Summary 2019 Memo NuScale Chapter 15 ML20108F5082020-05-27027 May 2020 Summary of April 15 2020 Public Meeting on NuScale EPZ Sizing Methodology TR ML20140A1892020-05-19019 May 2020 Public Meeting Summary May 14, 2020, NuScale Boron Redistribution Issue ML20114E2162020-05-0404 May 2020 Summary of the April 1, 2020, Category 1 Public Teleconference with NuScale Power, LLC to Discuss the Emergency Core Cooling System Boron Distribution of the Design Certification Application ML20114E0192020-04-27027 April 2020 Summary of the April 15, 2020, Category 1 Public Teleconference with NuScale Power, LLC to Discuss the Emergency Core Cooling System Boron Distribution of the Design Certification Application ML20114E0392020-04-23023 April 2020 Meeting Summary for the April 21, 2020, Public Meeting to Discuss NuScale SDA Significance Review Process ML20097C2292020-04-0707 April 2020 Summary of the March 9, 2020, Category 1 Public Teleconference with NuScale Power, LLC to Discuss the Emergency Core Cooling System Boron Distribution ML20072M7982020-03-19019 March 2020 Meeting Summary for the January 30, 2020, Public Meeting to Discuss NuScale SDA Regulatory Engagement Plan ML20076D8852020-03-16016 March 2020 Summary Report for the January 2019 Regulatory Audit of NuScale Chapter 20 ML20072K5232020-03-11011 March 2020 Summary of the September 4, 2019, Public Teleconference with NuScale Power, Llc., Regarding Responses to Staff Requests for Additional Information (RAI) (52-048) ML20059N6872020-03-0202 March 2020 Regulatory Audit Plan for NuScale DCA Chapters 6, 7, and 15 ML20054A0602020-02-28028 February 2020 Regulatory Audit Report for NuScale DCA Inadvertent Actuation Block (Iab) Operating Range Change ML20044E3522020-02-18018 February 2020 Memo to ACRS Rod Ejection Accident Methodology SER ML20049H1872020-02-18018 February 2020 Memo to ACRS Rea NON-LOCA TR SE ML20049H5442020-02-18018 February 2020 Letter to NuScale NON-LOCA TR SER ML20042E0242020-02-12012 February 2020 LOCA Topical Report Phase IV Audit Report - Public ML20042E0392020-02-12012 February 2020 NON-LOCA Topical Report Phases 3 and 4 Audit Report ML20010D1312020-01-16016 January 2020 Audit Summary Memo NuScale LOCA TR ML19345E9362020-01-13013 January 2020 Summary of the December 9, 2019, Public Teleconference Meeting on Incorporation by Reference ML19340A9712020-01-13013 January 2020 U.S. Nuclear Regulatory Commission Report of the Regulatory Follow-Up Audit Performed Between May 1, 2019, Through September 19, 2019, Regarding the Nuscale Stress and Fatigue Analysis of Major Design Components (Public) ML20006G4202020-01-0808 January 2020 ACRS Review of NuScale Power, LLC, Design Certification Application - Safety Evaluation with No Open Items for Chapters 2, 8 and 12 ML19343C7562020-01-0808 January 2020 Generator Tube - Siet Audit Report (Public) ML20006G5752019-12-20020 December 2019 Proposed Recommendation for ACRS Review of NuScale Power, LLC, Design Certification Application - Safety Evaluation with No Open Items for Chapter 8, Electric Power ML19331A3972019-12-20020 December 2019 U.S. Nuclear Regulatory Commission Report of the Regulatory follow-up Audit Performed Between 8/22/19 - 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March 12, 2018 MEMORANDUM TO: Samuel S. Lee, Chief Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors FROM: Rani L. Franovich, Senior Project Manager /RA/
Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors Prosanta Chowdhury, Project Manager Licensing Branch 1 Division of New Reactor Licensing Office of New Reactors
SUBJECT:
SUMMARY
OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC, TO DISCUSS VARIOUS TOPICS RELATED TO CHAPTER 15, TRANSIENT AND ACCIDENT ANALYSES, AND CHAPTER 2, SITE CHARACTERISTICS AND SITE PARAMETERS, SECTION 2.5.4, STABILITY OF SUBSURFACE MATERIALS AND FOUNDATIONS, OF THE NUSCALE DESIGN CERTIFICATION APPLICATION (DOCKET NO.52-048)
On December 5, 2017, representatives of the U.S. Nuclear Regulatory Commission (NRC) and NuScale Power, LLC, (NuScale) held a public teleconference meeting. The purpose of this meeting was to discuss the following:
- 1. NuScales responses to the NRC staff Requests for Additional Information (RAI) No.
8771 related to Final Safety Analysis Report (FSAR) plots which describe the system response during a return to power for the Decay Heat Removal System scenario where Design Certification power is available (Agency Documents Access and Management System (ADAMS) Accession No. ML17146B291); and
- 2. NuScales supplemental response to RAI No. 9049 related to FSAR Chapter 2, Site Characteristics and Site Parameters, Section 2.5.4, Stability of Subsurface Materials and Foundations (ADAMS Accession No. ML17320B122).
CONTACTS: Prosanta Chowdhury, NRO/DNRL Rani L. Franovich, NRO/DNRL 301-415-1647 301-415-7334
S. Lee Another topic involving NuScales responses to RAI Nos. 9032, 8993, and 9088 related to Chapter 7, Instrumentation and Controls, was also discussed at a designated time on the agenda. A summary of this portion of the meeting was issued separately under ADAMS Accession No. ML17345A176.
A complete copy of NuScales Design Certification Application is available on the NRC public Webpage at https://www.nrc.gov/reactors/new-reactors/design-cert/nuscale/documents.html. , Summary of the December 5, 2017, Teleconference between the NRC staff and NuScale, provides a summary of the topics discussed during the teleconference.
The agenda and list of meeting attendees are provided in Enclosures 2 and 3, respectively. The meeting notice is available in ADAMS, under Accession No. ML17292B021.
Docket No.52-048
Enclosures:
- 1. Meeting Summary
- 2. Agenda
- 3. Attendees
ML18065B075 *via email NRC-001 OFFICE NRO/DNRL/LB1: PM NRO/DNRL/LB1: PM NRO/DNRL/LB1: LA NAME RFranovich PChowdhury MMoore DATE 3/10/2018 3/12/2018 3/07/2018 U.S. NUCLEAR REGULATORY COMMISSION
SUMMARY
OF DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TOPIC 1:
NuScale Power, LLCs Response to Request for Additional Information No. 8771 The U.S. Nuclear Regulatory Commission (NRC) staff discussed NuScale Power, LLCs (NuScale or the applicant) response to Request for Additional Information (RAI) 8771 and asked why the response did not include some Final Safety Analysis Report (FSAR) plots that describe the system response during a return to power for the Decay Heat Removal System scenario where direct current (DC) power is available (sequence of events described in a new Table 15.0-16, untitled and yet to be provided). The plots, such as core average flow as a function of time, are relevant to the NRC staffs review and needed to inform a reasonable assurance finding for the return power analysis in FSAR, Section 15.0.6, Evaluation of a Return to Power.
Nuscale acknowledged the relevance of the plots and offered to provide them in a supplemental response to RAI 8771 within a months time.
TOPIC 2:
NuScale Supplemental Response to RAI No. 9049 (ML17320B122)
Background:
In a category 1 public meeting on October 31, 2017, the NRC staff discussed its feedback on NuScales response to RAI 9049 (ADAMS Accession No. ML17318A059).
In the response to RAI 9049, Question 02.05.04-3, the applicant provided information on Maximum Hydrostatic Pressure, Effective Lateral Pressure, Surcharge Loads, and Total Maximum Lateral Soil Pressure, and the applicant made a reference to FSAR Section 3.8.4.3.3, Earth Pressure (H). This response includes a pyramid graph and a table, which were not included in the FSAR. The NRC staff emphasized the need for this information in the FSAR, and on November 16, 2017, the applicant submitted a supplemental response to RAI 9049, Questions 02.05.04-2 and 02.05.04-3 addressing the staffs needs (ADAMS Accession No. ML17320B122).
During the December 5, 2017, category 1 public meeting, the NRC staff provided the following feedback on the applicants supplemental response of November 16, 2017:
- 1. Response to RAI 9049, Question 02.05.04-2 was acceptable and the NRC staff will confirm the FSAR markups in the next revision of the design certification application (DCA) when received.
- 2. The approach in the response to RAI 9049, Question 02.05.04-3 was acceptable to the extent that the applicant provided proposed markups in FSAR Section 3.8.4.3.3, and most of the details regarding static lateral earth pressure calculation are in the proposed Enclosure 1
markups. However, the description of lateral earth pressure in Section 3.8.4.3.3 is still not complete because: (a) it lacks the summary of dynamic earth pressure, and only mentions that it is developed from the SASSI2010 analyses of the standalone RXB and CRB models, and (b) it did not provide information on total lateral earth pressure to be comprised of both static and dynamic pressures. In RAI 8971, Question 03.08.04-14 related to FSAR Section 3.8.4, Other Seismic Category I Structures, the NRC staff asked the applicant to provide an evaluation of the dynamic lateral earth pressure.
NuScales response to this RAI Question is expected to address the NRC staffs needs conveyed to NuScale via RAI 9049, Question 02.05.04-3. During the meeting, the staff emphasized the need for the applicant to include in the response to RAI 8971, Question 03.08.04-14, a description on dynamic and total lateral earth pressures, and associated COL information item(s), particularly, since RAI 9049, Question 02.05.04-3 asked for earth pressure induced by both static and seismic loadings, and asked the applicant to provide associated COL information items. The applicant agreed to address these needs. The applicants response to RAI 8971, Question 03.08.04-14, is scheduled for submission by April 30, 2018.
There were no comments by members of the public.
U.S. NUCLEAR REGULATORY COMMISSION DECEMBER 5, 2017, PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC AGENDA Time Topic Speaker NuScale Power, LLC (NuScale) Response to 1:00 pm - 1:50 pm Request for Additional Information (RAI) NRC/NuScale 8771 1:50 pm - 2:00 pm Public Comments NRC/Public 2:00 pm - 2:20 pm NuScale Response to RAI 9049 NRC/NuScale 2:20 pm - 2:30 pm Public Comments NRC/Public NuScale Response to RAIs 9032, 8993, and 2:30 pm - 2:50 pm NRC/NuScale 9088 2:50 pm - 3:00 pm Public Comments NRC/Public Enclosure 2
LIST OF ATTENDEES NuScale Power, LLC Ben Bristol Yousef Farawila Darrell Gardner Paul Infanger Megan McCloskey Dominic Napolitano Kent Welter Marty Bryan Josh Parker Wayne Massie Jeff Kosky Mohsen Azadbakht U.S. Nuclear Regulatory Commission Staff Rani Franovich Prosanta Chowdhury Rebecca Karas Jeff Schmidt Weijun Wang Robert Riche-Rivera Michael Dudek Members of the Public Ryan Welch Enclosure 3