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MONTHYEARML0406107812004-03-0808 March 2004 Request for Additional Information, Proposed Amendments Re Spent Fuel Assembly Storage Project stage: RAI ML0411700262004-04-21021 April 2004 Request for Additional Information, Spent Fuel Assembly Storage Project stage: RAI ML0412504622004-04-22022 April 2004 Duke Energy Corporation (Duke), McGuire Nuclear Station Units 1 and 2, Technical Specifications Amendment Request for Additional Information (Rai); TS 3.7.15 - Spent Fuel Assembly Storage, and TS 4.3 - Fuel Storage Project stage: Request ML0414703032004-05-20020 May 2004 Technical Specification Amendment Request for Additional Information (Rai); TS 3.7.15 - Spent Fuel Assembly Storage, and TS 4.3 - Fuel Storage Project stage: Request ML0416804002004-06-0909 June 2004 Response to Request for Additional Information Re TS 3.7.15 & TS 4.3 Project stage: Response to RAI ML0419000552004-06-30030 June 2004 Request for Additional Information the Proposed Amendments Concerning Spent Fuel Assembly Storage Project stage: RAI ML0422302932004-07-29029 July 2004 Duke Energy Corporation (Duke) McGuire Nuclear Station Units 1 and 2, to Technical Specifications Amendment Request for Additional Information (Rai); TS 3.7.15 - Spent Fuel Assembly Storage, and TS 4.3 - Fuel Storage, Responses Project stage: Request ML0502804092005-03-17017 March 2005 Amendment Nos. 225 & 207, Revision of TS for Spent Fuel Pool Criteria and Allowance of U-235 with Fuel Assemblies (Tac MC0945, MC0946) Project stage: Other ML0517304552005-06-20020 June 2005 Corrections to Tech Specs for Amendments 225 and 207 Installation of Boral Between the Fuel Assemblies Project stage: Other ML0515402862005-06-20020 June 2005 Corrections to Amendments 225 and 207 Installation of Boral Between the Fuel Assemblies Project stage: Other 2004-06-30
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Category:Request for Additional Information (RAI)
MONTHYEARML23151A3482023-05-30030 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) ML23142A2732023-05-22022 May 2023 Duke Fleet - Request for Additional Information Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) ML23030B9032023-01-30030 January 2023 Formal Release of RAIs for McGuire Unit 1, Relief Request Impractical RPV Rx Coolant System Welds, Due March 1, 2023 (Email) ML23017A2232023-01-13013 January 2023 Request for Additional Information (RAI) Issuance for McGuire Unit 1 Steam Generator Tube Inspection Report (Email) ML22175A0162022-06-24024 June 2022 Notification of Inspection and Request for Information for NRC Problem Identification and Resolution Inspection ML22115A1412022-04-25025 April 2022 NRR E-mail Capture - Duke Common EOF Relocation - Request for Addition Information ML22102A2962022-04-13013 April 2022 Request for Withholding Information from Public Disclosure Response to Request for Additional Information ML22063B1782022-03-0909 March 2022 Request for Additional Information Regarding LAR for Revision to the Conditional Exemption of the End of Cycle Moderator Temperature Coefficient Measurement Methodology (EPID L-2021-LLA-0198) NON-PROPRIETARY ML22010A0732022-01-0606 January 2022 50.59 Inspection Information Request ML21354A8612021-12-15015 December 2021 NRR E-mail Capture - Request for Additional Information - Duke Fleet Request RA-19-0352 - Alternative for RPV Closure Stud Exams (L-2020-LLR-0156) ML21267A2782021-09-23023 September 2021 50.59 Inspection Information Request ML21252A0532021-09-0808 September 2021 NRR E-mail Capture - Formal Release of Rais, 30 Day Response, Mcguire Relief Request, Ref: Later Edition Addenda ASME Code, Section XI, 50.55a(g)(4)(iv) ML21103A0542021-04-13013 April 2021 NRR E-mail Capture - Extension to Request for Additional Information AMS Topical Report AMS-TR-0720R1 ML21067A6742021-03-0505 March 2021 NRR E-mail Capture - Final Request for Additional Information AMS Topical Report AMS-TR-0720R1 ML21049A2632021-02-0404 February 2021 NRR E-mail Capture - Request for Additional Information - Duke Energy Fleet License Amendment Request to Revise Emergency Plan ML21020A0682021-01-20020 January 2021 Notification of an NRC Fire Protection Team Inspection (FPTI) (NRC Inspection Report 05000369/2021011 and 05000370/2021011) and Request for Information (RFI) ML20346A0212020-12-10010 December 2020 NRR E-mail Capture - Formal Release of RAIs - License Amendment to Change TS 3.8.1 Due Jan. 29, 2021 ML20323A4072020-11-18018 November 2020 NRR E-mail Capture - Request for Additional Information - Brunswick License Exemption Request from 10CFR73 Annual Force on Force Exercise Requirements (EPIC L-2020-LLE-0180) ML20216A3512020-08-0303 August 2020 Mcquire U-1 ISI RFI ML20101L3132020-04-10010 April 2020 Notification of Inspection and Request for Information ML20071D0962020-03-0505 March 2020 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station Unit 1 Delay in Update of the Code of Record for in Service Inspections ML20050D3382020-02-21021 February 2020 Letter RAI 1 MAGNASTOR-Catawba and McGuire Exemptions with Enclosure ML19354B6372020-01-0707 January 2020 Exemption Request for NAC Magnastor Cask Loaded to Incorrect Helium Backfill Density Request for Additional Information ML19011A1372019-01-10010 January 2019 NRR E-mail Capture - Duke Energy Fleet RAIs - Relief Request 18-GO-001 - Proposed Alternative for Depth Sizing Qualification Examination of Welds (L-2018-LLR-0117) ML19007A3422018-12-21021 December 2018 NRR E-mail Capture - Duke Energy Fleet Draft RAIs - Relief Request 18-GO-001 - Proposed Alternative for Depth Sizing Qualification Examination of Welds (L-2018-LLR-0117) ML18352A8052018-12-18018 December 2018 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - MRP-227 Review ML18306A9372018-11-0202 November 2018 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - Esps LAR ML18285A0812018-10-11011 October 2018 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - TORMIS LAR RA-18-0011, Response to Request for Supplemental Information Regarding Duke Energy'S Response to GL 2016-01 Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools2018-05-30030 May 2018 Response to Request for Supplemental Information Regarding Duke Energy'S Response to GL 2016-01 Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools ML18138A4662018-05-18018 May 2018 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - TORMIS LAR ML18088B2822018-03-29029 March 2018 Requalification Program Inspection - McGuire Nuclear Station ML18057A2182018-02-23023 February 2018 Enclosurequest for Additional Information (Letter to A. Zaremba Request for Additional Information for Review of Duke Energy'S Decommissioning Funding Plan Update) ML17331B1492017-11-21021 November 2017 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - Nsws One-Time LAR (CACs MG0242 and MG0243, EPID L-2017-LLA-0299) ML17317B0932017-11-13013 November 2017 NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station, Units 1 and 2 - Irlt (CACs MF9020 and MF9021; EPID L-2016-LLA-0032) ML17230A1512017-08-15015 August 2017 Notification of Inspection of Inspection and Request for Information ML17192A4842017-07-11011 July 2017 NRR E-mail Capture - Duke Energy Fleet RAIs Alternative for Reactor Pressure Vessel Flange Threads Examination (MF9513 to MF9521) ML17135A0322017-05-12012 May 2017 NRR E-mail Capture - Request for Additional Information - McGuire TSTF-197 ML17114A4992017-04-17017 April 2017 Emergency Preparedness Inspection and Request for Information ML16302A1122016-11-0404 November 2016 Request for Additional Information Regarding License Amendment Request to Implement a Risk-Informed, Performance-Based Fire Protection Program (CAC Nos. MF2934 and MF2935) MNS-16-077, Responding to Request for Additional Information Related to License Amendment Request to Implement a Risk-informed Performance-Based Fire Protection Program2016-09-29029 September 2016 Responding to Request for Additional Information Related to License Amendment Request to Implement a Risk-informed Performance-Based Fire Protection Program ML16228A2612016-08-15015 August 2016 Email - McGuire Unit No. 1: Request for Additional Informati- Relief Request 16-MN-003 Alternative to Defect Removal Prior to Performing Temporary Repair Activities on Three-Inch-Diameter Nuclear Service Water System Piping. ML16194A2862016-07-12012 July 2016 E-Mail - Mcguirai Ice Condenser Door Position Alternate Verification, (ML16089A228) CAC Nos. MF7526 and MF7527 ML16175A0222016-07-12012 July 2016 Request for Additional Information Regarding License Amendment Request to Implement a Risk-Informed, Performance-Based Fire Protection Program ML16014A6882016-01-20020 January 2016 Request for Additional Information Regarding License Amendment Request to Revise Emergency Action Level Scheme ML15348A2602015-12-17017 December 2015 Request for Additional Information Regarding License Amendment Request to Use an Alternative Fission Gas Gap Release Fraction ML15320A3862015-11-19019 November 2015 RAI LAR to Adopt TSTF-523 ML15314A3592015-11-10010 November 2015 Duke Energy Draft RAIs Request to Adopt TSTF-523 (CAC Nos. MF6413-MF6422) ML15314A3562015-11-10010 November 2015 E-mail from J. Whited to A. Zaremba Duke Energy Draft RAIs License Amendment Request to Adopt TSTF-523 (CAC Nos. MF6413-MF6422) ML15289A5552015-10-26026 October 2015 Request for Additional Information Regarding License Amendment Request Nuclear Service Water System Allowed Outage Time Extension ML15289A5852015-10-26026 October 2015 Request for Additional Information Regarding License Amendment Request Regarding Residual Heat Removal System 2023-05-30
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June 30, 2004 Mr. G. Peterson Vice President McGuire Nuclear Station Duke Energy Corporation 12700 Hagers Ferry Road Huntersville, NC 28078-8985
SUBJECT:
MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RE: THE PROPOSED AMENDMENTS CONCERNING SPENT FUEL ASSEMBLY STORAGE (TAC NOS. MC0945 AND MC0946)
Dear Mr. Peterson:
By letter to the U.S. Nuclear Regulatory Commission (NRC) dated September 29, 2003, and supplemented on April 22 and May 20, 2004, you submitted an application for amendments to the operating license for McGuire Nuclear Station, Units 1 and 2. The amendments would revise Technical Specifications concerning spent fuel assembly storage. The NRC staff has reviewed your submittal and has determined that additional information is required. Our questions are provided in the Enclosure. We discussed these questions with your staff on June 22, 2004. Your staff indicated that a response could be provided within 30 days of the date of this letter.
If you have any further questions on this matter, please call me at (301) 415-1388.
Sincerely,
/RA/
James J. Shea, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-369 and 50-370
Enclosure:
Request for Additional Information cc w/encl: See next page
ML041900055 *Previous concurrence via e-mail NRR-088 OFFICE PDII-1/PM DSSA/SRXB PDII1/SC (A)
NAME JShea JUhle* SCoffin DATE 06/21/04 06/21/04 06/30/04 REQUEST FOR ADDITIONAL INFORMATION ON SPENT FUEL ASSEMBLY STORAGE AMENDMENT REQUEST MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-369 AND 50-370 Following review of the amendment request submitted by Duke Energy Corporation (Duke or licensee) regarding changes to the spent fuel pool (SFP) loading restrictions at McGuire Nuclear Station, Units 1 and 2, the staff identified the need for additional information to complete its review. Duke provided responses to the previous requests for additional information (RAIs) in letters dated April 22 and May 20, 2004. Following review of those RAI responses, the NRC staff had determined that additional information is required in order to complete our review.
- 1. In Dukes response to RAI Question #8 from the April 22 letter, the licensee stated that, "It was assumed that the maximum burnup computational uncertainty calculated over the range of elevated burnups, 0.00454 k, would occur at 50 gigawatt days per metric ton (GWD/MTU) and would be zero at 0 GWD/MTU." Therefore, the licensee assumed a linear relationship between the burnup uncertainty and the burnup over the range of 0 to 50 GWD/MTU. Based on the NRC staffs understanding of the RAI response, burnups greater than 50 GWD/MTU would be assumed to have the maximum burnup computational uncertainty of 0.00454 k. Therefore, the NRC staff requests the licensee provide the following information:
- a. For storage configurations which credit fuel assembly burnups in excess of 50 GWD/MTU, the NRC staff requests the licensee identify the value of the burnup computational uncertainty used.
- b. If a burnup computational uncertainty of 0.00454 k was applied to storage configurations which credit burnups in excess of 50 GWD/MTU, the NRC staff requests the licensee provide additional information to justify why this value remains conservative and a larger uncertainty was not needed.
- 2. In response to RAI Question #10 from the April 22 letter, the licensee stated that, "Discharge data from best-estimate future core designs were used to quantify the isotropic content of W-RFA fuel, because this design has only recently been introduced into the McGuire reactors, and so the historic W-RFA data are currently limited." As stated on pages 25 and 26 of Attachment 6, the NRC staff agrees that the licensees modeling of integral burnable poisons as discrete burnable poisons will provide conservative results due to the effects this will have on the assumed neutron spectrum around the fuel assemblies. However, the NRC staff requests that since the licensee is relying on "best-estimate" assumptions of reactivity-important core parameters during future cycle reloads, the licensee should provide a description of the process it will use to confirm that the each fuel assembly was exposed to more conservative core parameters than assumed in the analysis, prior to placing it in the SFP.
- 3. In response to RAI Question #15 from the April 22 letter, the licensee stated, "Each month, the burnup and isotropic weights for each fuel assembly is determined based on flux maps taken during cycle operation." The NRC staff requests the licensee identify the NRC approved methodology used to perform flux maps and determine cycle burnup.
- 4. In the cover letter for its September 29, 2003, license amendment request, Duke stated that this amendment would change McGuire Nuclear Stations spent fuel pools licensing bases to 10 CFR 50.68 from 10CFR 70.24 with an exemption. The NRC staff requests that Duke provide a brief summary of how it will satisfy each of the requirements in 10 CFR 50.68(b) upon approval and implementation of this amendment.
McGuire Nuclear Station cc:
Ms. Lisa F. Vaughn Ms. Karen E. Long Duke Energy Corporation Assistant Attorney General Mail Code - PB06E North Carolina Department of Justice 422 South Church Street P.O. Box 629 P.O. Box 1244 Raleigh, North Carolina 27602 Charlotte, North Carolina 28201-1244 Mr. R.L. Gill, Jr.
County Manager of Mecklenburg County Manager - Nuclear Regulatory Issues 720 East Fourth Street and Industry Affairs Charlotte, North Carolina 28202 Duke Energy Corporation 526 South Church Street Mr. C. Jeffrey Thomas Mail Stop EC05P Regulatory Compliance Manager Charlotte, North Carolina 28202 Duke Energy Corporation McGuire Nuclear Site NCEM REP Program Manager 12700 Hagers Ferry Road 4713 Mail Service Center Huntersville, North Carolina 28078 Raleigh, North Carolina 27699-4713 Anne Cottingham, Esquire Mr. Richard M. Fry, Director Winston and Strawn Division of Radiation Protection 1400 L Street, NW North Carolina Department of Washington, DC 20005 Environment, Health and Natural Resources Senior Resident Inspector 3825 Barrett Drive c/o U.S. Nuclear Regulatory Commission Raleigh, North Carolina 27609-7721 12700 Hagers Ferry Road Huntersville, North Carolina 28078 Mr. T. Richard Puryear Owners Group (NCEMC)
Dr. John M. Barry Duke Energy Corporation Mecklenburg County 4800 Concord Road Department of Environmental York, South Carolina 29745 Protection 700 N. Tryon Street Henry Barron Charlotte, North Carolina 28202 Group Vice President, Nuclear Generation and Chief Nuclear Officer Mr. Peter R. Harden, IV P.O. Box 1006-EC07H VP-Customer Relations and Sales Charlotte, NC 28201-1006 Westinghouse Electric Company 6000 Fairview Road, 12th Floor Charlotte, North Carolina 28210