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| | number = ML13137A102 | | | number = ML13137A102 |
| | issue date = 04/24/2013 | | | issue date = 04/24/2013 |
| | title = 2013/04/24 NRR E-mail Capture - Monticello Nuclear Generating Plant - Requests for Additional Information (Scvb) Supporting the EPU and Mellla+ Reviews (TAC Nos. MD9990 and ME3145) | | | title = NRR E-mail Capture - Monticello Nuclear Generating Plant - Requests for Additional Information (Scvb) Supporting the EPU and Mellla+ Reviews |
| | author name = Beltz T A | | | author name = Beltz T |
| | author affiliation = NRC/NRR/DORL/LPLIII-1 | | | author affiliation = NRC/NRR/DORL/LPLIII-1 |
| | addressee name = Fields J | | | addressee name = Fields J |
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| =Text= | | =Text= |
| {{#Wiki_filter:1 NRR-PMDAPEm Resource From: Beltz, Terry Sent: Wednesday, April 24, 2013 6:59 AM To: 'Fields, John S.' | | {{#Wiki_filter:NRR-PMDAPEm Resource From: Beltz, Terry Sent: Wednesday, April 24, 2013 6:59 AM To: 'Fields, John S.' |
| Cc: 'Hammer, Steven J.'; Sallman, Ahsan; Carlson, Robert | | Cc: 'Hammer, Steven J.'; Sallman, Ahsan; Carlson, Robert |
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| ==Subject:== | | ==Subject:== |
| Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145) | | Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145) |
| Attachments: | | Attachments: Monticello - Request for Additional Information (SCVB) on GEH Response to RAI 10(b).docx |
| Monticello - Request for Additional Informati on (SCVB) on GEH Response to RAI 10(b).docx | |
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| ==Dear Mr. Fields:== | | ==Dear Mr. Fields:== |
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| The U.S. Nuclear Regulatory Commission (NRC) staff in the Containment and Ventilation Branch of the Office of Nuclear Reactor Regulation is currently suppor ting the review of your license amendment requests associated with an Extended Power Uprate and Maximum Extended Load Line Limit Analysis Plus (MELLLA+) | | The U.S. Nuclear Regulatory Commission (NRC) staff in the Containment and Ventilation Branch of the Office of Nuclear Reactor Regulation is currently supporting the review of your license amendment requests associated with an Extended Power Uprate and Maximum Extended Load Line Limit Analysis Plus (MELLLA+) |
| expanded operating domain. The NRC staff has determined that additional information is required to complete | | expanded operating domain. The NRC staff has determined that additional information is required to complete its review. |
| | The requests for additional information (RAI) are attached. The NRC staff discussed the content of the draft RAIs with representatives from Xcel Energy and GE-Hitachi in an April 23, 2013, teleconference. Please provide a response to the attached RAIs no later than May 24, 2013. |
| | Please let me know if you have any questions or concerns. |
| | Sincerely, Terry A. Beltz, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation (301) 415-3049 Terry.Beltz@nrc.gov 1 |
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| its review.
| | Hearing Identifier: NRR_PMDA Email Number: 698 Mail Envelope Properties (Terry.Beltz@nrc.gov20130424065800) |
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| The requests for additional information (RAI) are attac hed. The NRC staff discussed the content of the draft RAIs with representatives from Xcel Energy and GE-Hitachi in an April 23, 2013, teleconference. Please provide a response to the attached RAIs no later than May 24, 2013.
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| Please let me know if you have any questions or concerns.
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| Sincerely, Terry A. Beltz, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation (301) 415-3049 Terry.Beltz@nrc.gov
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| Hearing Identifier: NRR_PMDA Email Number: 698 Mail Envelope Properties (Terry.Beltz@nrc.gov20130424065800) | |
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| ==Subject:== | | ==Subject:== |
| Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145) Sent Date: 4/24/2013 6:58:35 AM Received Date: 4/24/2013 6:58:00 AM From: Beltz, Terry Created By: Terry.Beltz@nrc.gov Recipients: "'Hammer, Steven J.'" <Steven.Hammer@xenuclear.com> Tracking Status: None "Sallman, Ahsan" <Ahsan.Sallman@nrc.gov> Tracking Status: None "Carlson, Robert" <Robert.Carlson@nrc.gov> | | Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145) |
| Tracking Status: None "'Fields, John S.'" <John.Fields@xenuclear.com> Tracking Status: None | | Sent Date: 4/24/2013 6:58:35 AM Received Date: 4/24/2013 6:58:00 AM From: Beltz, Terry Created By: Terry.Beltz@nrc.gov Recipients: |
| | "'Hammer, Steven J.'" <Steven.Hammer@xenuclear.com> |
| | Tracking Status: None "Sallman, Ahsan" <Ahsan.Sallman@nrc.gov> |
| | Tracking Status: None "Carlson, Robert" <Robert.Carlson@nrc.gov> |
| | Tracking Status: None |
| | "'Fields, John S.'" <John.Fields@xenuclear.com> |
| | Tracking Status: None Post Office: |
| | Files Size Date & Time MESSAGE 1049 4/24/2013 6:58:00 AM Monticello - Request for Additional Information (SCVB) on GEH Response to RAI 10(b).docx 17616 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: |
| | Recipients Received: |
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| Post Office: Files Size Date & Time MESSAGE 1049 4/24/2013 6:58:00 AM Monticello - Request for Additional Information (SCVB) on GEH Response to RAI 10(b).docx 17616 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
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| REQUEST FOR ADDITIONAL INFORMATION (RAI) | | REQUEST FOR ADDITIONAL INFORMATION (RAI) |
| FROM THE CONTAINMENT AND VENTILATION BRANCH OF THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING THE REVIEW OF THE EXTENDED POWER UPRATE AND MELLLA+ | | FROM THE CONTAINMENT AND VENTILATION BRANCH OF THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING THE REVIEW OF THE EXTENDED POWER UPRATE AND MELLLA+ |
| LICENSE AMENDMENT REQUESTS NORTHERN STATES POWER COMPANY - MINNESOTA (NSPM) | | LICENSE AMENDMENT REQUESTS NORTHERN STATES POWER COMPANY - MINNESOTA (NSPM) |
| MONTICELLO NUCLEAR GENERATING PLANT DOCKET NO. 50-263 Please provide additional information in reference to NSPM letter dated March 21, 2013 (Agencywide Documents Access and Management System Accession No. ML13085A033), Enclosure 2, GEH Response - RAI 10(b). | | MONTICELLO NUCLEAR GENERATING PLANT DOCKET NO. 50-263 Please provide additional information in reference to NSPM letter dated March 21, 2013 (Agencywide Documents Access and Management System Accession No. ML13085A033), , GEH Response - RAI 10(b). |
| | | Refer to NEDC-33322P, Revision 2, Section 2.6.3.1.1 Section 2.6.3.1.1- Short Term Gas Temperature Response The drywell air space temperature limit is specified in Table 2.6-1. The limit is increased for EPU from 335 °F to 340 °F. |
| Refer to NEDC-33322P, Revision 2, Section 2.6.3.1.1 Section 2.6.3.1.1- Short Term Gas Temperature Response The drywell air space temperature limit is specified in Table 2.6-1. The limit is increased for EPU from 335 °F to 340 °F. The GEH response to RAI 10(b) states the following: | | The GEH response to RAI 10(b) states the following: |
| The peak drywell temperatures reported under EPU/MELLLA conditions in Table 2.6-1 of NEDC-33322P were obtained from a long-term containment response calculation for a small steam line break accident (SBA) at 102% of EPU power and 100% core flow with the SHEX code. NRC Staff Comment | | The peak drywell temperatures reported under EPU/MELLLA conditions in Table 2.6-1 of NEDC-33322P were obtained from a long-term containment response calculation for a small steam line break accident (SBA) at 102% of EPU power and 100% core flow with the SHEX code. |
| | | NRC Staff Comment The GEH response to RAI 10(b) appears to conflict with the NEDC-33322P Revision 2, Section 2.6.3.1.1. |
| The GEH response to RAI 10(b) appears to conflict with the NEDC-33322P Revision 2, Section 2.6.3.1.1. | | The RAI response implies that the drywell gas temperature values in Table 2.6-1 of NEDC-33322P are based on a long term SBA analysis using SHEX code. |
| | | Section 2.6.3.1.1 of NEDC-33322P is referring to the short term drywell gas temperatures listed in Tables 2.6-1. |
| The RAI response implies that the drywell gas temperature values in Table 2.6-1 of NEDC-33322P are based on a long term SBA analysis using SHEX code. | | : 1. Please provide clarification as to whether the peak drywell temperatures of 335 °F, 336 °F, and 338 °F listed in Table 2.6-1 are based on short term SBA analysis or long term SBA analysis with SHEX code. |
| Section 2.6.3.1.1 of NEDC-33322P is referring to the short term drywell gas temperatures listed in Tables 2.6-1. | |
| : 1. Please provide clarification as to whether the peak drywell temperatures of 335 °F, 336 °F, and 338 °F listed in Table 2.6-1 are based on short term SBA analysis or long term SBA analysis with SHEX code. | |
| : 2. Please provide additional clarification (e.g., footnote(s)) in Table 2.6-1 to further differentiate between long term and short term SBA analyses.}} | | : 2. Please provide additional clarification (e.g., footnote(s)) in Table 2.6-1 to further differentiate between long term and short term SBA analyses.}} |
Letter Sequence RAI |
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TAC:MD9990, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) TAC:ME3145, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
Results
Other: L-MT-08-091, Calculation 0801040.301, Steam Dryer Outer Hood Submodel Analysis., L-MT-09-002, Response to NRC Probabilistic Risk Assessment (PRA) Branch Requests for Additional Information (Rais) Dated December 5, 2008, L-MT-09-003, Response to NRC Environmental Branch Requests for Additional Information (Rais) Dated December 18, 2008, L-MT-09-004, Enclosure 1 (Continued) to L-MT-09-004, NSPM Response to Containment & Ventilation Branch RAI Number 2, Copy of MNGP Appr T0406 Data Transmittal Pages 1 of 538 Through Pages 538 of 538, L-MT-09-026, Calculation 0000-0081-6958 MNGP-PRNMS-APRM Calc-2008-NP, Rev. 1, Average Power Range Monitor Selected Prnm Licensing Setpoints - EPU Operation (Numac), L-MT-09-027, Extended Power Uprate: Response to Instrumentation and Controls Branch RAI No. 3 Dated April 6, 2009, L-MT-09-044, Extended Power Uprate: Response to NRC Mechanical and Civil Engineering Review Branch (Emcb) Requests for Additional Information (Rais) Dated March 28, 2009, L-MT-09-049, Drawing C.5-2007, Revision 15, Failure to Scram, L-MT-09-073, Extended Power Uprate: Response to NRC Containment and Ventilation Review Branch (Scvb) Requests for Additional Information (Rais) Dated July 2, 2009 and July 14, 2009, L-MT-09-083, Extended Power Uprate: Limit Curves Requested by the Mechanical and Civil Review Branch (Emcb) Associated with Requests for Additional Information (Rais) Dated March 20, 2009, L-MT-09-088, Extended Power Uprate: Revision to Clarify Text in Enclosures 5 and 7 of L-MT-08-052, L-MT-09-097, Extended Power Uprate: Acknowledgement of NRC Review Delay, L-MT-10-025, Extended Power Uprate (Epu): Response to NRC-NSPM February 25, 2010 Conference Call, L-MT-10-072, Extended Power Uprate: Updates to Docketed Information, L-MT-11-044, Uprate (Epu): Update on EPU Commitments, L-MT-12-056, WCAP-17549-NP, Rev. 0, Monticello Replacement Steam Dryer Structural Evaluation for High-Cycle Acoustic Loads Using ACE, L-MT-12-090, Westinghouse, LTR-A&SA-12-8, Rev. 1, Attachment B, Recommendations for Inspections of the Monticello Replacement Steam Dryer., L-MT-12-114, Drawing C.5-2007, Rev. 17, Failure to Scram, L-MT-13-020, Enclosure 1 - Responses to the Gap Analysis, L-MT-13-029, Enclosure 14 to L-MT-13-029 - WCAP-17716-NP, Revision 0, Benchmarking of the Acoustic Circuit Enhanced Revision 2.0 for the Monticello Steam Dryer Replacement Project., L-MT-13-091, WCAP-17716-NP, Revision 1 - Benchmarking of the Acoustic Circuit Enhanced Revision 2.0 for the Monticello Steam Dryer Replacement Project, Enclosure 14, L-MT-13-092, Extended Power Uprate (Epu): Completion of EPU Commitments, Proposed License Conditions and Revised Power Ascension Test Plan, L-MT-13-096, GE-MNGP-AEP-3304R1, Enclosure 4, NEDC-33435 Corrected Pages, L-MT-13-126, Enclosure 3, GE-MNGP-AEP-3306, Enclosure 2 GEH Response to Mella+ Eicb RAI and Affidavit, L-MT-14-023, Maximum Extended Load Line Limit Analysis Plus: Technical Specification Clarifications, L-MT-15-074, Enclosure 7, WCAP-18604-NP, Revision 0, Monticello EPU Main Steam Line Strain Data Evaluation Report., L-MT-16-017, Revised Commitment to Reconcile Analysis of Bypass Voiding for Transition to Areva Analysis Methodology, L-MT-16-071, Submittal of 2016 Annual Report of Changes in Emergency Core Cooling System Evaluation Models Pursuant to 10 CFR 50.46, ML083230111, ML083400402, ML083500575, ML083570610, ML083590127, ML090710680, ML090710683, ML090710684, ML091120578, ML091140470, ML091410121, ML091410122, ML091410123, ML091410124, ML091760769, ML092290250, ML092810554, ML093160816, ML093220925, ML093220964, ML093620024, ML100280558... further results
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MONTHYEARML0907106832008-02-17017 February 2008
Enclosure 1 (Continued) to L-MT-09-004, NSPM Response to Containment & Ventilation Branch RAI Number 2, Attachment 1-1g Through End of Encl. 1
Project stage: Other
ML13064A4352008-03-20020 March 2008
CA-95-075, Main Steam Line High Flow Setpoint, Attachment 4
Project stage: Other
ML0914101242008-08-11011 August 2008
Monticello - Calculation CA-08-050, Rev. 0, Instrument Setpoint Calculation - Average Power Range Monitor (APRM) Non-Flow Eiased Prnm Setpoints for Cl Tp and EPU
Project stage: Other
L-MT-08-091, Calculation 0801040.301, Steam Dryer Outer Hood Submodel Analysis.2008-10-31031 October 2008
Calculation 0801040.301, Steam Dryer Outer Hood Submodel Analysis.
Project stage: Other
ML0832301122008-10-31031 October 2008
NEDC-33322-NP, Revision 3, Monticello Nuclear Generating Plant, Safety Analysis Report, Constant Pressure Power Uprate.
Project stage: Request
ML0832301112008-11-0505 November 2008
Monticello Nuclear Generating Plant, License Amendment Request: Extended Power Uprate
Project stage: Other
ML0832301142008-11-0505 November 2008
Monticello Nuclear Generating Plant, Steam Dryer Dynamic Stress Evaluation.
Project stage: Request
ML0834003662008-12-0202 December 2008
Extended Power Uprate Acceptance Review Questions on Probabilistic Risk Assessment Issues
Project stage: Acceptance Review
ML0834004022008-12-0505 December 2008
Extended Power Uprate - Monticello - Request to Supplement the Application in the Probabilistic Risk Assessment Area
Project stage: Other
ML0835000992008-12-11011 December 2008
Monticello Extended Power Uprate (Usnrc TAC MD9990): Acceptance Review Supplement Regarding Steam Dryer Outer Hood Submodel Analysis
Project stage: Supplement
ML0835303022008-12-16016 December 2008
Draft Request for Additional Information, Environmental Issues of EPU Application
Project stage: Draft RAI
ML0936200242008-12-18018 December 2008
Report 0800760.401, Rev. 1, Flaw Evaluation and Vibration Assessment of Existing Monticello Steam Dryer Flaws for Extended Power Uprate.
Project stage: Other
ML0835005752008-12-18018 December 2008
Letter Finding 11/5/08 Application for Amendment Acceptable for Review
Project stage: Other
ML0835309982008-12-18018 December 2008
EPU Application - Additional RAI Question Regarding an Environmental Issue
Project stage: RAI
ML0835310022008-12-18018 December 2008
Proposed Eou Amendment - Revised RAI Re. Containment Analysis
Project stage: RAI
ML0914101222008-12-18018 December 2008
Monticello - Calculation CA-95-075, Revision 1, Main Steam Line High Flow Setpoint
Project stage: Other
ML0914101212008-12-19019 December 2008
Monticello - Calculation CA-95-073, Revision 4, Reactor Low Water Level SCRAM Setpoint
Project stage: Other
ML0835901272009-01-14014 January 2009
Letter Conveying Determination That Enclosure 5 of 11/5/08 Application for EPU Amendment Contains Proprietary Information and Withheld from Public Disclosure
Project stage: Other
ML0835706102009-01-26026 January 2009
Letter Conveying Determination That Enclosure 11 of 11/5/08 Application for EPU Amendment Contains Proprietary Information and Is Withheld from Public Disclosure
Project stage: Other
L-MT-09-003, Response to NRC Environmental Branch Requests for Additional Information (Rais) Dated December 18, 20082009-01-29029 January 2009
Response to NRC Environmental Branch Requests for Additional Information (Rais) Dated December 18, 2008
Project stage: Other
L-MT-09-005, Revision to Attachment 1 of Enclosure 17 of MNGP License Amendment Request for Extended Power Uprate2009-02-0404 February 2009
Revision to Attachment 1 of Enclosure 17 of MNGP License Amendment Request for Extended Power Uprate
Project stage: Request
L-MT-09-002, Response to NRC Probabilistic Risk Assessment (PRA) Branch Requests for Additional Information (Rais) Dated December 5, 20082009-02-0404 February 2009
Response to NRC Probabilistic Risk Assessment (PRA) Branch Requests for Additional Information (Rais) Dated December 5, 2008
Project stage: Other
ML0904204852009-02-11011 February 2009
Draft RAI from Materials Engineering Re. Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0907106792009-02-17017 February 2009
Monticello, Response to NRC Containment & Ventilation Branch Request for Additional Information (Rals) Dated December 18, 2008
Project stage: Request
ML0907106802009-02-17017 February 2009
Monticello, Enclosure 1 to L-MT-09-004, NSPM Response to Containment & Ventilation Branch RAI Number 1 Dated December 18, 2008, Cover Through Copy of MNGP Appr T0406 Data Transmittal Page 424 of 424
Project stage: Other
L-MT-09-004, Enclosure 1 (Continued) to L-MT-09-004, NSPM Response to Containment & Ventilation Branch RAI Number 2, Copy of MNGP Appr T0406 Data Transmittal Pages 1 of 538 Through Pages 538 of 5382009-02-17017 February 2009
Enclosure 1 (Continued) to L-MT-09-004, NSPM Response to Containment & Ventilation Branch RAI Number 2, Copy of MNGP Appr T0406 Data Transmittal Pages 1 of 538 Through Pages 538 of 538
Project stage: Other
ML0907106842009-02-17017 February 2009
Enclosures 2 - 4: NSPM Response to Containment & Ventilation Branch RAI Numbers 2, 3 and 4 Dated December 18, 2008
Project stage: Other
L-MT-09-018, Response to NRC Steam Generator Tube Integrity & Chemical Engineering Branch Request for Additional Information (RAI) Dated February 11, 20092009-02-24024 February 2009
Response to NRC Steam Generator Tube Integrity & Chemical Engineering Branch Request for Additional Information (RAI) Dated February 11, 2009
Project stage: Request
ML0907100912009-03-11011 March 2009
Conveying Draft RAI Questions from the Instrumentation and Controls Branch Regarding the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0907200572009-03-12012 March 2009
Conveys Draft RAI Regarding Fire Protection for the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0907800062009-03-18018 March 2009
Draft RAI from Probabilistic Risk Assessment Licensing Branch on the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0907800042009-03-18018 March 2009
Conveys Draft RAI by the PRA Licensing Branch on the Proposed EPU Amendment
Project stage: Draft RAI
ML0907809032009-03-19019 March 2009
Conveys Draft RAI Provided by the Containment and Ventilation Branch on the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0907809092009-03-19019 March 2009
RAI from the Containment and Ventilation Branch the Proposed Extended Power Uprate Amendment
Project stage: RAI
L-MT-09-017, Extended Power Uprate: Response to NRC Reactor Systems Branch & Nuclear Performance & Code Review Branch Request for Additional Information (RAI) Dated January 16, 20092009-03-19019 March 2009
Extended Power Uprate: Response to NRC Reactor Systems Branch & Nuclear Performance & Code Review Branch Request for Additional Information (RAI) Dated January 16, 2009
Project stage: Request
ML0908200312009-03-20020 March 2009
Draft RAI Re. Health Physics Issues for the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0908200992009-03-23023 March 2009
Draft RAI from the Balance of Plant Branch Re the Proposed Amendment on Extended Power Uprate
Project stage: Draft RAI
ML0908800022009-03-28028 March 2009
Second Portion of Draft RAI from the Mechanical and Civil Engineering Branch Regarding the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0908800032009-03-28028 March 2009
Draft RAI from the Electrical Engineering Branch Re. the Proposed Extended Power Uprate Amendment for Monticello
Project stage: Draft RAI
ML0908800012009-03-29029 March 2009
Additional Draft RAI Questions from the Containment and Ventilation Branch Proposed EPU Amendment for Monticello
Project stage: Draft RAI
ML0910300172009-04-0606 April 2009
Conveys an Additional EPU Draft RAI Question from Instrumentation and Controls Branch
Project stage: Draft RAI
ML0910300212009-04-0606 April 2009
Draft RAI Question from Instrumentation and Controls Branch Re. Proposed EPU Amendment
Project stage: Draft RAI
ML0911205782009-04-22022 April 2009
Request for Audit of Implementation of Long-Term Stability Solution
Project stage: Other
L-MT-09-025, Extended Power Uprate: Response to NRC Reactor Systems Branch and Nuclear Performance & Code Review Branch Request for Additional Information (RAI) Dated February 23, 20092009-04-22022 April 2009
Extended Power Uprate: Response to NRC Reactor Systems Branch and Nuclear Performance & Code Review Branch Request for Additional Information (RAI) Dated February 23, 2009
Project stage: Request
ML0911902092009-04-29029 April 2009
Transmit Revised Draft RAI from the Probabilistic Risk Assessment Licensing Branch on the Proposed Extended Power Uprate Amendment
Project stage: Draft RAI
ML0914101232009-05-0606 May 2009
Monticello - Calculation 96-054, Rev 5, Turbine Stop Valve Closure/Generator Load Reject Scram Bypass
Project stage: Other
ML0911404702009-05-0707 May 2009
Determination That Submitted Information Can Be Withheld from Public Disclosure
Project stage: Other
ML0914101202009-05-13013 May 2009
Monticello - Extended Power Uprate: Response to NRC Instrumentation & Controls Branch Request for Additional Information Dated March 11, 2009, and April 6, 2009, and Fire Protection Branch RAIs Dated March 12, 2009
Project stage: Request
L-MT-09-045, Extended Power Uprate: Response to NRC Electrical Engineering Review Branch (Eeeb) Request for Additional Information (RAI) Dated March 28, 20092009-05-26026 May 2009
Extended Power Uprate: Response to NRC Electrical Engineering Review Branch (Eeeb) Request for Additional Information (RAI) Dated March 28, 2009
Project stage: Request
L-MT-09-029, Extended Power Uprate: Response to NRC Probabilistic Risk Assessment (PRA) Licensing Branch Request for Additional Information (RAI) Dated April 29, 20092009-05-29029 May 2009
Extended Power Uprate: Response to NRC Probabilistic Risk Assessment (PRA) Licensing Branch Request for Additional Information (RAI) Dated April 29, 2009
Project stage: Request
2009-02-24
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Category:E-Mail
MONTHYEARML24284A2822024-10-0707 October 2024
Cover Email Re Monticello SLRA-3rd Round Request for Additional Information
ML24254A3932024-08-26026 August 2024
SLRA - 2nd Round Request for Additional Information
ML24218A2282024-08-0505 August 2024
Request for Confirmation of Information for Relief Request RR-017, Inservice Inspection Impracticality During the Fifth Ten-Year Interval
ML24131A0802024-05-10010 May 2024
Final RAI for LAR to Revise TS 3.8.6, Battery Parameters, SR 3.8.6.6
ML24036A2462024-04-24024 April 2024
NRC to Fws, NRC Issuance of Draft Environmental Impact Statement for Monticello Subsequent License Renewal, Opportunity for Public Comment, and Endangered Species Act Determinations
ML24092A2152024-03-27027 March 2024
Email: Requests for Information to Support Deis
ML24068A0612024-03-0707 March 2024
Extension of Audit for License Amendment Request to Revise TS 3.8.6, Battery Parameters, SR 3.8.6.6
ML24064A1802024-03-0404 March 2024
Acceptance of Relief Request RR-017, Inservice Inspection (ISI) Impracticality During the Fifth Ten-Year Interval
ML24036A0932024-02-0202 February 2024
Acceptance of License Amendment Request to Revise TS 5.6.5 and Update PTLR Neutron Fluence Methodology and Incorporate New Surveillance Capsule Data
ML24022A0212024-01-20020 January 2024
NRR E-mail Capture - Monticello - Request for Additional Information ISI RR-002 Alternative to Use IWB-2500(f)
ML23353A0742023-12-19019 December 2023
NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Proposed Alternative VR-09, Modifications to OMN-17
ML23348A3462023-12-14014 December 2023
NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of License Amendment Request to Revise TS 3.8.6, Battery Parameters, SR 3.8.6.6
ML23268A0292023-09-20020 September 2023
SLRA - Requests for Confirmation of Information - Set 2 - Email from Marieliz Johnson to Shawn Hafen
ML23249A2092023-09-0606 September 2023
NRR E-mail Capture - Action: Opportunity to Review and Comment on a New NRC Information Collection, 10 CFR Part 50.55a, Codes and Standards (3150-XXXX)
ML23248A3462023-09-0505 September 2023
NRR E-mail Capture - Request for Additional Information for Monticello Nuclear Generating Plant and Prairie Island Nuclear Generating Plant - Decommissioning Funding Status Reports
ML23237A4822023-08-25025 August 2023
SLRA - Request for Additional Information - Set 3 - Email from Marieliz Johnson to Shawn Hafen
ML23228A1212023-08-16016 August 2023
NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Alternative Request VR-11 for MO-2397
ML23227A2182023-08-15015 August 2023
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ML21084A2522021-03-24024 March 2021
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ML21068A2772021-03-0909 March 2021
NRR E-mail Capture - Monticello TSTF-505, Request for Additional Information
ML20343A1292020-12-0808 December 2020
NRR E-mail Capture - Request for Additional Information
2024-08-05
[Table view] |
Text
NRR-PMDAPEm Resource From: Beltz, Terry Sent: Wednesday, April 24, 2013 6:59 AM To: 'Fields, John S.'
Cc: 'Hammer, Steven J.'; Sallman, Ahsan; Carlson, Robert
Subject:
Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145)
Attachments: Monticello - Request for Additional Information (SCVB) on GEH Response to RAI 10(b).docx
Dear Mr. Fields:
The U.S. Nuclear Regulatory Commission (NRC) staff in the Containment and Ventilation Branch of the Office of Nuclear Reactor Regulation is currently supporting the review of your license amendment requests associated with an Extended Power Uprate and Maximum Extended Load Line Limit Analysis Plus (MELLLA+)
expanded operating domain. The NRC staff has determined that additional information is required to complete its review.
The requests for additional information (RAI) are attached. The NRC staff discussed the content of the draft RAIs with representatives from Xcel Energy and GE-Hitachi in an April 23, 2013, teleconference. Please provide a response to the attached RAIs no later than May 24, 2013.
Please let me know if you have any questions or concerns.
Sincerely, Terry A. Beltz, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation (301) 415-3049 Terry.Beltz@nrc.gov 1
Hearing Identifier: NRR_PMDA Email Number: 698 Mail Envelope Properties (Terry.Beltz@nrc.gov20130424065800)
Subject:
Monticello Nuclear Generating Plant - Requests for Additional Information (SCVB) Supporting the EPU and MELLLA+ Reviews (TAC Nos. MD9990 and ME3145)
Sent Date: 4/24/2013 6:58:35 AM Received Date: 4/24/2013 6:58:00 AM From: Beltz, Terry Created By: Terry.Beltz@nrc.gov Recipients:
"'Hammer, Steven J.'" <Steven.Hammer@xenuclear.com>
Tracking Status: None "Sallman, Ahsan" <Ahsan.Sallman@nrc.gov>
Tracking Status: None "Carlson, Robert" <Robert.Carlson@nrc.gov>
Tracking Status: None
"'Fields, John S.'" <John.Fields@xenuclear.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 1049 4/24/2013 6:58:00 AM Monticello - Request for Additional Information (SCVB) on GEH Response to RAI 10(b).docx 17616 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION (RAI)
FROM THE CONTAINMENT AND VENTILATION BRANCH OF THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING THE REVIEW OF THE EXTENDED POWER UPRATE AND MELLLA+
LICENSE AMENDMENT REQUESTS NORTHERN STATES POWER COMPANY - MINNESOTA (NSPM)
MONTICELLO NUCLEAR GENERATING PLANT DOCKET NO. 50-263 Please provide additional information in reference to NSPM letter dated March 21, 2013 (Agencywide Documents Access and Management System Accession No. ML13085A033), , GEH Response - RAI 10(b).
Refer to NEDC-33322P, Revision 2, Section 2.6.3.1.1 Section 2.6.3.1.1- Short Term Gas Temperature Response The drywell air space temperature limit is specified in Table 2.6-1. The limit is increased for EPU from 335 °F to 340 °F.
The GEH response to RAI 10(b) states the following:
The peak drywell temperatures reported under EPU/MELLLA conditions in Table 2.6-1 of NEDC-33322P were obtained from a long-term containment response calculation for a small steam line break accident (SBA) at 102% of EPU power and 100% core flow with the SHEX code.
NRC Staff Comment The GEH response to RAI 10(b) appears to conflict with the NEDC-33322P Revision 2, Section 2.6.3.1.1.
The RAI response implies that the drywell gas temperature values in Table 2.6-1 of NEDC-33322P are based on a long term SBA analysis using SHEX code.
Section 2.6.3.1.1 of NEDC-33322P is referring to the short term drywell gas temperatures listed in Tables 2.6-1.
- 1. Please provide clarification as to whether the peak drywell temperatures of 335 °F, 336 °F, and 338 °F listed in Table 2.6-1 are based on short term SBA analysis or long term SBA analysis with SHEX code.
- 2. Please provide additional clarification (e.g., footnote(s)) in Table 2.6-1 to further differentiate between long term and short term SBA analyses.
