Letter Sequence Request |
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MONTHYEARML16012A1242015-12-18018 December 2015
NRR E-mail Capture - (External_Sender) River Bend SFP Mohr Level Instrument
Project stage: Request
ML16033A4032016-01-25025 January 2016
NRR E-mail Capture - (External_Sender) River Bend FLEX Building ASCE 7-10 Seismic Design Loading Evaluation
Project stage: Request
ML15292A5082016-08-11011 August 2016
Safety Evaluation Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Instrumentation Related to Orders EA-12-049 and EA-12-051
Project stage: Approval
2016-01-25
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Category:E-Mail
MONTHYEARML23348A1222023-12-14014 December 2023
NRR E-mail Capture - Grand Gulf, River Bend, and Waterford, Unit 3 - 2nd Round of Official RAIs for RR EN-RR-22-001, Use ASME Code Case N-752, Risk Informed Categorization for Class 2 and 3 Systems
ML24031A2772023-11-27027 November 2023
(05000458/2024040) IP 95001 Regarding EA-23-071 Initial Request for Information
ML23240A3412023-08-28028 August 2023
NRR E-mail Capture - ANO-2, Grand Gulf, and River Bend - Acceptance Review of LAR Revising TSs to Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions
ML23207A0762023-07-14014 July 2023
EN 56557 - Update to Part 21 Report Re Potential Defect with Trane External Auto/Stop Emergency Stop Relay Card Pn: XI2650728-06
ML23159A0052023-06-0505 June 2023
56557-EN 56557 - Paragon - Redlined
ML23116A1462023-04-26026 April 2023
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Final RAI for Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019)
ML23103A4662023-04-0404 April 2023
NRR E-mail Capture - River Bend Station, Unit 1 - Acceptance Review for LAR to Adopt TSTF-505, Rev. 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
ML23103A4672023-04-0404 April 2023
NRR E-mail Capture - River Bend Station, Unit 1 - Acceptance Review for LAR to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors
ML23089A0702023-03-29029 March 2023
TSTF-505 Email Providing Reference for 0.3g HCLPF Value
ML23072A3672023-03-0909 March 2023
NRR E-mail Capture - Entergy Fleet - Acceptance Review of Quality Assurance Program Manual Reduction in Commitment
ML23009B6912023-01-0909 January 2023
NRR E-mail Capture - Grand Gulf, Unit 1 and River, Unit 1 - Acceptance of Requested Licensing Action Request to Update ASME Code RR SE with NRC-Approved Revision of BWRVIP Guidelines
ML22206A0152022-07-21021 July 2022
NRR E-mail Capture - Entergy (Grand Gulf, River Bend, and Waterford-3) - Acceptance Review of the RR EN-RR-22-001, Case N-752, Risk-informed Cat & Treatment for Repair/Replacement Activities in Class 2 & 3 Systems
ML22173A0372022-06-21021 June 2022
NRR E-mail Capture - Entergy (Grand Gulf and River Bend) - Acceptance Review of the License Amendment Request to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling
ML21356A5882021-12-22022 December 2021
NRR E-mail Capture - Acceptance for Review: River Bend Station 1 - IST Program Relief Request for PIV Testing Frequency
ML21312A4792021-11-0505 November 2021
Email: NRC Staff Preliminary Questions Regarding X Energy LLC Xe-100 Topical Report: Risk-Informed Performance-Based Licensing Basis Development
ML21308A5602021-11-0404 November 2021
NRR E-mail Capture - Arkansas Nuclear One, Units 1 and 2, Grand Gulf, River Bend, and Waterford, Unit 3 - Acceptance Review of LAR to Adopt TSTF-554, Revise Reactor Coolant Leakage Requirements
ML21292A0112021-10-18018 October 2021
NRR E-mail Capture - ANO, 1 and 2, Grand Gulf, River Bend, Waterford, 3 - Acceptance Review of LAR to Adopt TSTF-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position
ML21218A0412021-07-19019 July 2021
NRR E-mail Capture - River Bend Unit 1 - Acceptance of License Amendment Request to Add License Condition Concerning Receipt, Possession
ML21174A0342021-06-22022 June 2021
NRR E-mail Capture - Entergy Fleet (ANO, Ggulf, Rbend, & Waterford) - Acceptance Review for Relief Request to Use a Provision of a Later Edition of the ASME Code, Section XI for Periodic System Pressure Tests Exemptions
ML21109A2142021-04-19019 April 2021
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Rev. Est Hours for Review of Relief Request (RR) - ASME Code RR Safety Eval with NRC-Approved Rev of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019)
ML21099A0312021-03-30030 March 2021
Email 3-30-2021 - Request for Information_ RBS EP Exercise Inspection (Week of 5_10_2021)
ML21109A2132021-03-23023 March 2021
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Relief Request (RR) Associated with ASME Code RR Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019)
ML21068A4092021-03-0909 March 2021
NRR E-mail Capture - Entergy Fleet (GGNS and RBS) -Approval of TSTF-501 LAR, Relocate Sored Fuel Oil and Lube Oil Volume Values to Licensee Control
ML21022A1692021-01-22022 January 2021
NRR E-mail Capture - Entergy Fleet (ANO, Grand Gulf, River Bend, and Waterford) - Acceptance Review for RR EN-20-RR-003, Proposed Alternative to Use ASME Code Case N-711-2
ML21015A3452021-01-14014 January 2021
NRR E-mail Capture - Grand Gulf and River Bend - Revised Estimated Hours for Relief Request Associated with ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019)
ML20337A1382020-11-23023 November 2020
Acceptance of License Amendment Request to Adopt GL 86-10 Standard License Condition for Fire Protection
ML20329A1442020-11-20020 November 2020
Terrapower QAPD Preliminary Questions Email
ML20317A2922020-10-15015 October 2020
Entergy Operations, Inc. (River Bend Station, Unit 1) - Acceptance Review of License Amendment Request to Revise Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements
ML20289A3542020-10-14014 October 2020
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of TSTF-563 LAR, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program
ML20255A1892020-09-0909 September 2020
Email 09Sept2020 - RFI for RBS EP Exercise Inspection
ML20260H4422020-09-0808 September 2020
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Official RAIs for RR Associated with Updating ASME Code RR SEs with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020 and RBS-ISI-019)
ML20169A3782020-06-16016 June 2020
Email-20-0196-NRC Riv Response V. Dricks to Tom Gurdziel Inquiry: Extent of Condition Flex Equipment
ML20169A6752020-05-20020 May 2020
Email-20-0196, Tom Gurdziel Inquiry to NRC Chairman Resource, Extent of Condition FLEX Equipment, 05/20/2020
ML20093C3072020-04-0101 April 2020
NRR E-mail Capture - (External_Sender) Entergy Fleet - Performance-Based Cyber Security Testing Plan Fee Waiver Response Letter (EPID P-2020-PRF-0000; CAC No. 001648)
ML20086J6572020-03-26026 March 2020
NRR E-mail Capture - River Bend Station, Unit 1 -Acceptance Review of the LAR Associated with Extending the Implementation Date from 5/13/2020 to 9/30/2020 for Emergency Action Level Scheme
ML20079D9302020-03-19019 March 2020
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with Adopting TSTF-501, Relocate Stored Fuel Oil and Lube Oil Volumes to Licensee Control
ML20057G1752020-02-24024 February 2020
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with TSTF-566, Revise Actions for Inoperable RHR-Shutdown Cooling Subsystems
ML20057G1592020-02-24024 February 2020
NRR E-mail Capture - Entergy Fleet (Grand Gulf and River Bend) - Acceptance Review of LAR Associated with TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO
ML20038A2092020-02-0404 February 2020
05000458 Request for Information IR2020-001 Occupational Radiation Safety
ML19352F5222019-12-17017 December 2019
NRR E-mail Capture - Acceptance Review Results for License Amend Request to Revise TS 3.3.5.2 to Adopt TSTF-425, Rev 3, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5b, for River Bend,
ML19102A0722019-04-11011 April 2019
NRR E-mail Capture - River Bend Station, Unit 1 - Final Request for Additional Information Relief Request RBS-ISI-021
ML19095B7622019-04-0303 April 2019
Acceptance Review Results for License Amendment Request to Adopt TSTF-564, Revision 2, Safety Limit MCPR (Minimum Critical Power Ratio), for Grand Gulf Nuclear Station, Unit 1 and River Bend Station, Unit 1 (EPID L-22019-LLA-0051)
ML19059A1782019-02-28028 February 2019
Acceptance Review Results for Relief Request No. EN-19-RR-1 to Use ASME Code Case N-831-1 for Entergy Fleet
ML19059A0292019-02-27027 February 2019
NRR E-mail Capture - Acceptance Review Results for License Amendment Request to Adopt TSTF-529, Revision 4, Clarify Use and Application Rules, for Entergy Fleet
ML19008A3592019-01-0808 January 2019
NRR E-mail Capture - Acceptance Review: RR Volumetric Exams (L-2018-LLR-0388)
ML18365A1422018-12-28028 December 2018
NRR E-mail Capture - Acceptance Review Results - Removal of TS Table of Contents (L-2018-LLA-0489)
ML18337A0052018-11-30030 November 2018
Acceptance Review Results: River Bend Station License Amendment Request New Spent Fuel Pool Criticality Analysis
ML18337A3422018-11-14014 November 2018
Email from EPA Region 6 to David Drucker Nrr/Dmlr/Mrpb Acknowledging Receipt of Link to Generic Environmental Impact Statement for License Renewal of Nuclear Plants, Supplement 58, Regarding River Bend Station, Unit 1
ML18304A4612018-10-31031 October 2018
NRR E-mail Capture - Final RAI River Bend TSFTF-425 (L-2018-LLA-0056)
ML18291B1472018-10-18018 October 2018
Revision of the River Bend License Renewal Safety Evaluation Report
2023-08-28
[Table view] |
Text
NRR-PMDAPEm Resource From: WILLIAMSON, DANNY H <DWILL21@entergy.com>
Sent: Monday, January 25, 2016 2:10 PM To: Hughey, John
Subject:
[External_Sender] FLEX building seismic design Attachments: RBS Storage Building Seismic Design Jan. 2016.pdf John Attached is an updated response to the request for additional information concerning the seismic design of our FLEX buildings. Give me a call if you have any further questions on this topic.
1
Hearing Identifier: NRR_PMDA Email Number: 2632 Mail Envelope Properties (AB886B0D6516ED40B856643C503B23FC3417363E)
Subject:
[External_Sender] FLEX building seismic design Sent Date: 1/25/2016 2:09:37 PM Received Date: 1/25/2016 2:09:44 PM From: WILLIAMSON, DANNY H Created By: DWILL21@entergy.com Recipients:
"Hughey, John" <John.Hughey@nrc.gov>
Tracking Status: None Post Office: LITXMETSP002.etrsouth.corp.entergy.com Files Size Date & Time MESSAGE 202 1/25/2016 2:09:44 PM RBS Storage Building Seismic Design Jan. 2016.pdf 53877 Options Priority: Standard Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date:
Recipients Received:
RBSStorageBuildingSeismicDesign
TheRiverBendStation(RBS)FLEXstoragebuildingsweredesignedviathe2012InternationalBuilding
Code(IBC).IBCinvokesASCE710throughoutthedocument.Theseismicdesigninputspectrawas
obtainedfromASCE710whichisinaccordancewithNEI1206Section5.3.1.1.b.ASCE710providesa
spectrawithlowerspectralaccelerationsthantheRBSsafeshutdownearthquake(SSE).Regardingthe
abilityofthestructuretoresistplantSSEaccelerations,theASCE710basedseismicreactionsobtained
fromtheFLEXstoragebuildingvendorwereincreasedaccordingly.Inordertodeterminethe
acceptabilityoftheexistingdesigntothehigheraccelerations,thesehigherseismicreactionswerethen
comparedtothewindreactions.
Thedesigninputwindspeedof165mphsignificantlyexceedstheASCE710requirements.Athorough
reviewofthedesigndeterminedthatthereactionsfromtheexcesswindspeedgovernoverSSEloading.
Theexistingdesignisthereforeacceptable.
Thetablebelowsummarizesthegoverningdesignelement(Braces)ratiosbetweenwindandSSE
reactions.NotethattheindividualbuildingframesandendwallmembersalsohavemarginoverSSE
reactionsbeyondwhatisshownbelow.
Table1:WindandSeismicSSEComparisonforGoverningDesignElement
Wind Reactions (kip) SSE Reactions (kip) Wind capacity over SSE forces (Wind reaction/SSE reaction)
Horiz. Vert. Horiz. Vert. Horiz. Vert.
RBS North 12.9 8.8 4.9 3.3 2.6 2.7 RBS South 12.9 9.1 5.6 4.0 2.3 2.3
InordertoaccountforvaryingsoilconditionsbetweentheFLEXbuildingsitesandtheplant(wherethe
local soil profile was used to determine design accelerations), the largest Site Coefficient Fa in Table
11.41ofASCE710forsiteclassDisconservativelycomparedtothemarginnotedinthetableabove.
NotethatthecoefficientFahasadirectandlineareffectonbaseshear(V).Therefore,magnifyingthe
SSEforcesbyFawilldirectlyaccountforpotentiallyvaryingsoilpropertiesthroughASCE7sClassD,the
mostcriticalClassusedforFLEXbuildingdesign.Sincethesmallestmarginabove(2.3)isgreaterthan
1.6, the building designs are acceptable for SSE accelerations conservatively magnified by local soil
conditions.
ThespacingaroundtheequipmentinsideoftheFLEXstoragebuildingswasdeterminedbasedonsliding
androckingdistancesduringaseismiceventalsousingtheASCE710seismicspectra.Theslidingand
rockingresultsfortheequipmentinsidetheFLEXstoragebuildingsatRBSutilizingtheseismicprovisions
ofASCE710arecomparedtotheSSEseismicaccelerations.Theminimumseparationdistancebetween
equipmentspecifiedutilizingtheASCE710seismicloadsof13isinsufficienttoboundtheSSEloads
forslidingandrockingandneedstobeincreasedto16.TheminimumseparationnoteontheFLEX
equipmentlayoutdrawingshasbeenupdated.Theequipmentwaslaidoutwithatleast24inchesof
clearancesonophysicalchangesarerequired.
NRR-PMDAPEm Resource From: WILLIAMSON, DANNY H <DWILL21@entergy.com>
Sent: Monday, January 25, 2016 2:10 PM To: Hughey, John
Subject:
[External_Sender] FLEX building seismic design Attachments: RBS Storage Building Seismic Design Jan. 2016.pdf John Attached is an updated response to the request for additional information concerning the seismic design of our FLEX buildings. Give me a call if you have any further questions on this topic.
1
Hearing Identifier: NRR_PMDA Email Number: 2632 Mail Envelope Properties (AB886B0D6516ED40B856643C503B23FC3417363E)
Subject:
[External_Sender] FLEX building seismic design Sent Date: 1/25/2016 2:09:37 PM Received Date: 1/25/2016 2:09:44 PM From: WILLIAMSON, DANNY H Created By: DWILL21@entergy.com Recipients:
"Hughey, John" <John.Hughey@nrc.gov>
Tracking Status: None Post Office: LITXMETSP002.etrsouth.corp.entergy.com Files Size Date & Time MESSAGE 202 1/25/2016 2:09:44 PM RBS Storage Building Seismic Design Jan. 2016.pdf 53877 Options Priority: Standard Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date:
Recipients Received:
RBSStorageBuildingSeismicDesign
TheRiverBendStation(RBS)FLEXstoragebuildingsweredesignedviathe2012InternationalBuilding
Code(IBC).IBCinvokesASCE710throughoutthedocument.Theseismicdesigninputspectrawas
obtainedfromASCE710whichisinaccordancewithNEI1206Section5.3.1.1.b.ASCE710providesa
spectrawithlowerspectralaccelerationsthantheRBSsafeshutdownearthquake(SSE).Regardingthe
abilityofthestructuretoresistplantSSEaccelerations,theASCE710basedseismicreactionsobtained
fromtheFLEXstoragebuildingvendorwereincreasedaccordingly.Inordertodeterminethe
acceptabilityoftheexistingdesigntothehigheraccelerations,thesehigherseismicreactionswerethen
comparedtothewindreactions.
Thedesigninputwindspeedof165mphsignificantlyexceedstheASCE710requirements.Athorough
reviewofthedesigndeterminedthatthereactionsfromtheexcesswindspeedgovernoverSSEloading.
Theexistingdesignisthereforeacceptable.
Thetablebelowsummarizesthegoverningdesignelement(Braces)ratiosbetweenwindandSSE
reactions.NotethattheindividualbuildingframesandendwallmembersalsohavemarginoverSSE
reactionsbeyondwhatisshownbelow.
Table1:WindandSeismicSSEComparisonforGoverningDesignElement
Wind Reactions (kip) SSE Reactions (kip) Wind capacity over SSE forces (Wind reaction/SSE reaction)
Horiz. Vert. Horiz. Vert. Horiz. Vert.
RBS North 12.9 8.8 4.9 3.3 2.6 2.7 RBS South 12.9 9.1 5.6 4.0 2.3 2.3
InordertoaccountforvaryingsoilconditionsbetweentheFLEXbuildingsitesandtheplant(wherethe
local soil profile was used to determine design accelerations), the largest Site Coefficient Fa in Table
11.41ofASCE710forsiteclassDisconservativelycomparedtothemarginnotedinthetableabove.
NotethatthecoefficientFahasadirectandlineareffectonbaseshear(V).Therefore,magnifyingthe
SSEforcesbyFawilldirectlyaccountforpotentiallyvaryingsoilpropertiesthroughASCE7sClassD,the
mostcriticalClassusedforFLEXbuildingdesign.Sincethesmallestmarginabove(2.3)isgreaterthan
1.6, the building designs are acceptable for SSE accelerations conservatively magnified by local soil
conditions.
ThespacingaroundtheequipmentinsideoftheFLEXstoragebuildingswasdeterminedbasedonsliding
androckingdistancesduringaseismiceventalsousingtheASCE710seismicspectra.Theslidingand
rockingresultsfortheequipmentinsidetheFLEXstoragebuildingsatRBSutilizingtheseismicprovisions
ofASCE710arecomparedtotheSSEseismicaccelerations.Theminimumseparationdistancebetween
equipmentspecifiedutilizingtheASCE710seismicloadsof13isinsufficienttoboundtheSSEloads
forslidingandrockingandneedstobeincreasedto16.TheminimumseparationnoteontheFLEX
equipmentlayoutdrawingshasbeenupdated.Theequipmentwaslaidoutwithatleast24inchesof
clearancesonophysicalchangesarerequired.
