Letter Sequence Response to RAI |
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TAC:ME1872, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
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MONTHYEARML0926604942009-09-23023 September 2009 Acceptance Review Email, License Amendment Request, Modify Technical Specification Surveillance Requirement Frequencies from 18- to 24-Month Fuel Cycle Intervals Project stage: Acceptance Review RBG-46985, Unit 1, Supplement to License Amendment Request (LAR) LAR 2009-05, Dated August 10, 2009 Regarding 24-Month Fuel Cycles2009-12-0808 December 2009 Unit 1, Supplement to License Amendment Request (LAR) LAR 2009-05, Dated August 10, 2009 Regarding 24-Month Fuel Cycles Project stage: Supplement RBG-47021, Response to Request for Additional Information on License Amendment Request 2009-05, 24-Month Fuel Cycles2010-04-22022 April 2010 Response to Request for Additional Information on License Amendment Request 2009-05, 24-Month Fuel Cycles Project stage: Response to RAI ML1013302722010-05-13013 May 2010 Request for Additional Information Regarding 24 Month Cycle Project stage: RAI RBG-47043, Modification of License Amendment Request by Withdrawing the Proposed Changes Related to TS 3.3.8.1, Loss of Power Instrumentation.2010-06-16016 June 2010 Modification of License Amendment Request by Withdrawing the Proposed Changes Related to TS 3.3.8.1, Loss of Power Instrumentation. Project stage: Request ML1019300932010-07-12012 July 2010 E-mail, Bases Markups Related to License Amendment Request to Modify Technical Specification Surveillance Requirement Frequencies from 18- to 24-Month Fuel Cycle Intervals Project stage: Request ML1019301002010-07-12012 July 2010 Bases Markups Related to License Amendment Request to Modify Technical Specification Surveillance Requirement Frequencies from 18- to 24-Month Fuel Cycle Intervals Project stage: Request ML1023501552010-08-17017 August 2010 Response to Request for Additional Information on License Amendment Request 2009-05, 24-month Fuel Cycles Project stage: Response to RAI ML1023502662010-08-31031 August 2010 Issuance of Amendment No. 168, Modify Technical Specification Surveillance Requirement Frequencies from 18- to 24-Month Fuel Cycle Intervals Project stage: Approval ML13350A1612015-02-10010 February 2015 Correction to Safety Evaluation Related to Amendment No. 168 Which Modified Techical Specification Surveillance Requirement Frequencies from 18- to 24-Month Fuel Cycle Intervals; Enclosed New SE Section 3.1.7B Project stage: Approval 2010-06-16
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Category:Letter
MONTHYEARML24214A2752024-08-0202 August 2024 Acknowledgement of Readiness for Supplemental Inspection RBG-48308, Notification of Readiness for Supplemental Inspection2024-07-31031 July 2024 Notification of Readiness for Supplemental Inspection IR 05000458/20240022024-07-30030 July 2024 Integrated Inspection Report 05000458/2024002 and Notice of Violation ML24164A0862024-06-12012 June 2024 Notification of Commercial Grade Dedication Inspection (05000458/2024010) and Request for Information IR 05000458/20240012024-05-14014 May 2024 Integrated Inspection Report 05000458/2024001 ML24128A0422024-05-0707 May 2024 License Amendment Request to Remove Obsolete License Conditions RBG-48276, 2023 Annual Radioactive Effluent Release Report2024-04-23023 April 2024 2023 Annual Radioactive Effluent Release Report IR 05000458/20230402024-01-18018 January 2024 95001 Supplemental Inspection Supplemental Report 05000458/2023040 and Follow-Up Assessment Letter ML24012A1962024-01-12012 January 2024 Response to 2nd Round Request for Additional Information Concerning Relief Request Number EN-RR-22-001 Proposed Alternative to Use ASME Code Case N-752, Risk-Informed Categorization and RBG-48271, Supplement to License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times RITSTF Initiative 4b and Application to Adopt 10 CFR 50.69, Risk2024-01-12012 January 2024 Supplement to License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times RITSTF Initiative 4b and Application to Adopt 10 CFR 50.69, Risk ML24011A1742024-01-11011 January 2024 Security Baseline Inspection Report (Cover Letter) ML23349A1672023-12-21021 December 2023 Request for Withholding Information from Public Disclosure ML23348A3572023-12-14014 December 2023 Application to Revise Technical Specifications to Use Online Monitoring Methodology Slides and Affidavit for Pre-Submittal Meeting ML23352A0292023-12-13013 December 2023 Entergy - 2024 Nuclear Energy Liability Evidence of Financial Protection ML23340A1592023-12-13013 December 2023 Entergy Operations, Inc. - Entergy Fleet Project Manager Assignment IR 05000458/20230102023-12-12012 December 2023 Biennial Problem Identification and Resolution Inspection Report 05000458/2023010 RBG-48267, Reply to a Notice of Violation, NRC Inspection Report 05000458/20230032023-12-0707 December 2023 Reply to a Notice of Violation, NRC Inspection Report 05000458/2023003 ML23333A1362023-11-29029 November 2023 Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23325A1432023-11-21021 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23310A0322023-11-13013 November 2023 Integrated Inspection Report 05000458/2023003 IR 05000458/20230032023-11-13013 November 2023 Integrated Inspection Report 05000458/2023003 ML23311A4322023-11-0909 November 2023 Notification of NRC Supplemental Inspection (95001) and Request for Information 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 RBG-48264, Core Operating Limits Report (COLR) - Cycle 23, Revision 12023-11-0606 November 2023 Core Operating Limits Report (COLR) - Cycle 23, Revision 1 RBG-48260, Notification of Readiness for Supplemental Inspection2023-10-12012 October 2023 Notification of Readiness for Supplemental Inspection ML23278A2402023-10-0606 October 2023 Regulatory Audit Plan in Support of License Amendment Requests to Revise TSs to Adopt Risk-Informed Completion Times and Implement the Provisions of 10 CFR 50.69 RBG-48258, Notification of Readiness for Supplemental Inspection2023-10-0505 October 2023 Notification of Readiness for Supplemental Inspection RBG-48259, Revision to Reply to Notice of Violation; EA-23-0552023-10-0303 October 2023 Revision to Reply to Notice of Violation; EA-23-055 ML23270B9932023-09-29029 September 2023 Request to Update ASME Boiler & Pressure Vessel Code Relief Request SE with NRC-Approved Revision of Bwrip Guidelines (GG-ISI-020 & RBS-ISI-019) (EPID L-2022-LLR-0090) - Non-Proprietary ML23269A1242023-09-27027 September 2023 Request for Withholding Information from Public Disclosure IR 05000458/20234012023-09-26026 September 2023 Cyber Security Inspection Report 05000458/2023401 IR 05000458/20234032023-09-21021 September 2023 NRC Security Inspection Report 05000458/2023403 (Cover Letter) IR 05000458/20230012023-09-21021 September 2023 NRC Inspection Report 05000458/2023001, Disputed Non-Cited Violation Rescinded RBG-48254, Report of Changes and Errors to 10CFR50.462023-09-21021 September 2023 Report of Changes and Errors to 10CFR50.46 RBG-48249, Reply to a Notice of Violation, EA-23-0712023-09-14014 September 2023 Reply to a Notice of Violation, EA-23-071 RBG-48253, Submittal of Owner'S Activity Report Form for Cycle 222023-09-12012 September 2023 Submittal of Owner'S Activity Report Form for Cycle 22 IR 05000458/20230122023-09-0101 September 2023 Comprehensive Engineering Team Inspection Report 05000458/2023012 IR 05000458/20230052023-08-21021 August 2023 Updated Inspection Plan for River Bend Station (Report 05000458/2023005) - Mid Cycle Letter RBG-48247, Reply to Notice of Violation; EA-23-0552023-08-21021 August 2023 Reply to Notice of Violation; EA-23-055 IR 05000458/20230922023-08-15015 August 2023 Final Significance Determination of a White Finding, Notice of Violation, and Follow-Up Assessment Letter; NRC Inspection Report 05000458/2023092 IR 05000458/20230022023-08-0909 August 2023 Integrated Inspection Report 05000458/2023002 ML23208A2112023-07-27027 July 2023 Entergy Operations Inc., Application to Revise Technical Specifications to Adopt TSTF-205, Revision of Channel Calibration, Channel Functional Test, and Related Definitions ML23195A0692023-07-24024 July 2023 2023 River Bend Station Notification of Biennial Problem Identification and Resolution Inspection and Request for Information IR 05000458/20230912023-07-20020 July 2023 Final Significance Determination of a White Finding, Notice of Violation, and Follow-Up Assessment Letter; NRC Inspection Report 05000458/2023091 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 ML23195A0222023-07-11011 July 2023 4-2022-012 Letter - OI Closure to Licensee IR 05000458/20234042023-07-11011 July 2023 NRC Security Inspection Report 05000458/2023404 (Cover Letter Only) IR 05000458/20230902023-06-26026 June 2023 NRC Inspection Report 05000458/2023090 and Preliminary White Finding ML23159A2302023-06-0808 June 2023 Response to Request for Additional Information Concerning Request to Update ASME Code Relief Request Safety Evaluations with NRC-Approved Revision of BWRVIP Guidelines (GG-ISI-020, and RBS-ISI-019) 2024-08-02
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Entergy Operations, Inc.River Bend Station 5485 U. S. Highway 61N St. Francisville, LA 70775 Tel 225 381 4149"EntergyJ EFax 225 635 5068 jrober3@entergy.com Jerry C. Roberts Director, Nuclear Safety Assurance RBG-47021 April 22, 2010 U. S. Nuclear Regulatory Commission Attn.: Document Control Desk Washington, DC 20555-0001
SUBJECT:
REFERENCES:
Response to Request for Additional Information on License Amendment Request 2009-05, 24-month Fuel Cycles River Bend Station -Unit 1 Docket No. 50-458 License No. NPF-47 1. Entergy letter to NRC, dated August 10, 2009, License Amendment Request 2009-05, 24-month Fuel Cycles (Letter No.RBG-46932)
- 2. NRC letter to Entergy (via email), dated April 8, 2010, Request for Additional Information RBF1-10-0057 File Code No.: G9.5
Dear Sir or Madam:
On August 10, 2009, Entergy submitted a request to amend the station's operating license to allow implementation of 24-month fuel cycles (Reference 1). During their review, the NRC staff determined that additional information is needed to complete the processing and approval of Entergy's request. The request for that information was transmitted to Entergy per Reference
- 2. The attachment to this letter contains the requested information.
This letter contains no commitments.
If you have any questions on this matter, please contact David Lorfing, Manager -Licensing, at 225-381-4157.
I declare under penalty of perjury that the foregoing is true and correct.Sincerely, DirctJerry C. Roberts Director -Nuclear Safety Assurance cof~-
RBG-47021 April 22, 2010 Page 2 of 2
Attachment:
Response to Request for Additional Information cc: Regional Administrator U. S. Nuclear Regulatory Commission Region IV 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 NRC Senior Resident Inspector P. O. Box 1050 St. Francisville, LA 70775 U. S. Nuclear Regulatory Commission Attn.: Mr. Alan B. Wang One White Flint MS 0-8 B1 11555 Rockville Pike Rockville, MD 20852-2738 Mr. Jeffrey P. Myers Louisiana Department of Environmental Quality Office of Environmental Compliance Attn.: OEC-ERSD P. 0. Box 4312 Baton Rouge, LA 70821-4312 Attachment to RBG-47021 River Bend Station License Amendment Request 2009-05 Response to Request for Additional Information Attachment RBG-47021 April 22, 2010 Page 1 of 1 Request for Additional Information:
In your August 10, 2009, submittal, on page 15, under Section 3.4 "Source Term", it is stated that RBS's core source term will be based on the ORIGN01 P computer code instead of the previously approved CINDER computer code. Please provide additional information on any design bases parameters, assumptions or methodologies (other than the one mentioned previously) that were changed in the radiological design basis accident analyses as a result of the change? If there are many changes it would be helpful to compare and contrast them in a table. Also, please provide a justification for any changes.Response: There are two fundamental changes related to source term discussed in the License Amendment Request, as described below.(1) There was a change in the computer code used to generate the RBS source termr as a result of the previous transition from AREVA nuclear fuel to GNF nuclear fuel. This involved the transition from the CINDER7 computer code for generating the core source term to the ORIGEN 2.1 computer code. The CINDER7 computer code, which is no longer supported by General Electric (GE), was used for the core source term prior to the current fuel cycle. GE now uses ORIGEN 2.1, which is one of the recommended source term codes in Regulatory Guide 1.183. The change in source term computer code was approved using the 1 0CFR50.59 process as part of the current cycle 16 core design.(2) The Updated Safety Analysis Report Chapter 15 accident analysis was evaluated based on the 24-month fuel cycle source term. This analysis modified the reactor core source term (radionuclide inventory) resulting from the transition to a 24-month fuel cycle. There were no other input changes. The code version used for the dose calculations was not changed. The resulting change in main control room, exclusion area boundary, and low population zone doses for each of the accident scenarios was less than 10% of the current USAR value which is within the licensee-controlled margin (refer to NEI 96-07, Section 4.3.3). This analysis is in the final stages of completion by the vendor. These changes must receive final approval by Entergy via the design change process which includes an evaluation per 10CFR50.59.