Letter Sequence Other |
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TAC:MD8064, (Open) TAC:MD9990, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
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MONTHYEARML0920903212003-10-15015 October 2003
Drawing NX-7831-197-1, Rev D, Monticello Nuclear Generating Plant Reactor Vessel & Internals, Monticello, Unit 1
Project stage: Other
L-MT-08-007, Supplemental Information Related to Nmc'S Response to Generic Letter 2007-01, Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients.2008-02-0606 February 2008
Supplemental Information Related to Nmc'S Response to Generic Letter 2007-01, Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients.
Project stage: Request
ML0907106832008-02-17017 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
ML0805706482008-03-21021 March 2008
Request for Withholding Information from Public Disclosure
Project stage: Withholding Request Acceptance
05000263/LER-2008-001, Re Non-Conservative High Energy Line Break Analysis Discovered During Extended Power Uprate Review2008-03-31031 March 2008
Re Non-Conservative High Energy Line Break Analysis Discovered During Extended Power Uprate Review
Project stage: Request
ML0914101242008-08-11011 August 2008
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-08-049, Submittal of Response to Requests for Additional Information for License Amendment Request for Power Range Neutron Monitoring System Upgrade2008-09-16016 September 2008
Submittal of Response to Requests for Additional Information for License Amendment Request for Power Range Neutron Monitoring System Upgrade
Project stage: Response to RAI
ML0826310122008-09-18018 September 2008
Special Inspection Charter for Loss of Normal Offsite Power to Non-Safety Buses and Resultant Reactor Scram on 9/11/2008
Project stage: Request
ML0830202822008-10-0606 October 2008
Letter to Determine That Enclosures 8 and 9 of 9/16/08 Submittal Can Be Withheld from Public Disclosure
Project stage: Other
L-MT-08-091, Calculation 0801040.301, Steam Dryer Outer Hood Submodel Analysis2008-10-31031 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
License Amendment Request: Extended Power Uprate
Project stage: Request
ML0832301142008-11-0505 November 2008
Steam Dryer Dynamic Stress Evaluation
Project stage: Request
L-MT-08-070, Response to September 16, 2008, Request for Additional Information for License Amendment Request for Power Range Neutron Monitoring System Upgrade2008-11-0606 November 2008
Response to September 16, 2008, Request for Additional Information for License Amendment Request for Power Range Neutron Monitoring System Upgrade
Project stage: Request
ML0831106732008-11-0707 November 2008
Notice of Meeting with Nuclear Management Company to Discuss the November 05, 2008, License Amendment Application for Extended Power Uprate for Monticello Nuclear Generating Plant
Project stage: Meeting
ML0832507042008-11-26026 November 2008
Meeting Summary, Meeting with Northern States Power Company to Discuss the November 5, 2008, Application for an Extended Power Uprate Amendment
Project stage: Meeting
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
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
ML0914101222008-12-18018 December 2008
Calculation CA-95-075, Revision 1, Main Steam Line High Flow Setpoint
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
ML0914101212008-12-19019 December 2008
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
ML0834406812009-01-30030 January 2009
(Mngp), License Amendment No. 159 Regarding the Power Range Neutron Monitoring System
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
Response to NRC Containment & Ventilation Branch Request for Additional Information (Rals) Dated December 18, 2008
Project stage: Request
L-MT-09-004, Enclosures 2 - 4: NSPM Response to Containment & Ventilation Branch RAI Numbers 2, 3 and 4 Dated December 18, 20082009-02-17017 February 2009
Enclosures 2 - 4: NSPM Response to Containment & Ventilation Branch RAI Numbers 2, 3 and 4 Dated December 18, 2008
Project stage: Other
ML0907106822009-02-17017 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
ML0907106802009-02-17017 February 2009
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-09-018, 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
ML0907809092009-03-19019 March 2009
RAI from the Containment and Ventilation Branch the Proposed Extended Power Uprate Amendment
Project stage: 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
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
2008-03-31
[Table View] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 16, 2009 Mr. Timothy J. O'Connor Site Vice President Monticello Nuclear Generating Plant Northern States Power Company - Minnesota 2807 West County Road 75 Monticello, MN 55362-9637
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT (MNGP) - EXTENDED POWER UPRATE AND LONG-TERM STABILITY SOLUTION AUDIT
SUMMARY
(TAC NOS. MD9990 AND MD8064)
Dear Mr. O'Connor:
The Nuclear Regulatory Commission (NRC) staff is reviewing an application by Northern States Power Company (NSPM) for an extended power uprate (EPU) amendment at MNGP. As part of its review, the NRC staff performed an operational audit of the long-term stability solution that NSPM recently installed at MNGP. The NRC staff was supported by its consultant Oak Ridge National Laboratory. The audit took place at the MNGP Operator Training Center on May 21, 2009.
Enclosed please find the audit summary. No significant issues or open items were identified during the audit. The NRC staff's conclusions will be presented in detail in the safety evaluation associated with the MNGP EPU amendment. The audit summary is provided for your information only; no part of the audit summary may be construed as finding or conclusion on the proposed EPU amendment, whose review is still ongoing.
Sincerely, 5Z.'
('~
A.-;{:;:;. tL...v,
~
r S. Tam, Senior Project Manager Pe Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
Audit summary cc w/encls: Distribution via ListServ
REGULATORY AUDIT
SUMMARY
BY THE OFFICE OF NUCLEAR REACTOR REGULATION MONTICELLO NUCLEAR GENERATING PLANT NORTHERN STATES POWER COMPANY - MINNESOTA LONG-TERM STABILITY SOLUTION AND EXTENDED POWER UPRAT DOCKET NO. 50-263
1.0 BACKGROUND
Northern States Power Company - Minnesota (NSPM), as the licensee for Monticello Nuclear Generating Plant (MNGP), has recently received U.S. Nuclear Regulatory Commission (NRC) approval to implement a new long-term stability solution at MNGP (see Amendment No. 159, January 30, 2009; (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML083440681). NSPM is also requesting an extended power uprate (EPU) amendment at MNGP; this request is currently under review by the NRC staff.
The long-term (LIT) stability solution is a technical matter that receives a significant amount of attention during the NRC's review of an EPU amendment. Accordingly, the NRC staff routinely performs regulatory audits of licensees' stability solutions in concert with both the EPU review, and as an ongoing regulatory oversight activity with regard to the stability solution installed at domestic boiling-water reactors.
2.0 REGULATORY AUDIT BASES This audit was conducted in accordance with the guidelines presented in the Office of Nuclear Reactor Regulation Office Instruction L1C-111, "Regulatory Audits."
The NRC staff evaluated the information gained during the audit using the General Design Criteria (GOG) presented in Appendix A to part 50, Title 10, of the U.S. Code of Federal Regulations (10 CFR Part 50). Specifically, the NRC staff considered GDC 10, "Reactor Design;" GDC 12, "Suppression of Power Oscillations;" and GDC 13, "Instrumentation and Control."
The NRC staff acknowledges that the GDC are not directly applicable to MNGP, as the plant was not licensed using the 10 CFR Part 50 GDCs. However, the NRC staff believes that the GDCs provide adequate technical guidance against which to evaluate the LIT stability solution installed at MNGP, and considers the GDCs as regulatory guidance only.
- 2 3.0 REGULATORY AUDIT SCOPE This audit had two main goals: (1) to understand the implementation status of the Monticello LIT Stability Option implementations, and (2) review the implementation of the anticipated transient without scram (ATWS) emergency operating procedures, including the ATWS/Stability mitigation actions, as it relates to the EPU upgrade.
4.0
SUMMARY
OF REGULATORY AUDIT The NRC staff conducted its audit by observing presentations of technical material related to IVINGP's experience and training for stability scenarios and their mitigating systems, and by observing exercises at the MNGP control room simulator. The simulator portion included observation of two ATWS scenarios: a main steamline isolation valve closure with an electrical failure in the control rod drive system, and a turbine trip with a failure of all rods to insert fully.
Both exercises were observed with and without operator action.
No significant issues were identified during the NRC staff's audit. The NRC staff's conclusions will be presented in detail in the safety evaluation associated with the IVINGP EPU amendment.
5.0 LOGISTICS The audit was conducted on May 21,2009, at the XCEL Training Center located on West River Street in Monticello, Minnesota.
Participants in the audit included:
IVINGP NRC General Electric-Hitachii Joel Beres Tai Huang Juswald Vedovi Mike Cray Benjamin Parks Steve Hammer Jose March-Leuba Randy Nuelk (consultant from Oak Ridge Harold Paustian National Laboratory)
John Shriver Principal Contributors: Benjamin Parks TaiHuang Date: July 16, 2009
July 16, 2009 Mr. Timothy J. O'Connor Site Vice President Monticello Nuclear Generating Plant Northern States Power Company 2807 West County Road 75 Monticello, MN 55362-9637
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT (MNGP) - EXTENDED POWER UPRATE AND LONG-TERM STABILITY SOLUTION AUDIT
SUMMARY
(TAC NOS. MD9990 AND MD8064)
Dear Mr. O'Connor:
The Nuclear Regulatory Commission (NRC) staff is reviewing an application by Northern States Power Company (NSPM) for an extended power uprate (EPU) amendment at MNGP. As part of its review, the NRC staff performed an operational audit of the long-term stability solution that NSPM recently installed at MNGP. The !\\IRC staff was supported by its consultant Oak Ridge National Laboratory. The audit took place at the MNGP Operator Training Center on May 21, 2009.
Enclosed please find the audit summary. No significant issues or open items were identified during the audit. The NRC staff's conclusions will be presented in detail in the safety evaluation associated with the MNGP EPU amendment. The audit summary is provided for your information only; no part of the audit summary may be construed as finding or conclusion on the proposed EPU amendment, whose review is still ongoing.
Sincerely, IRAJ Peter S. Tam, Senior Project Manager Plant Licensing Branch '"-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
Audit summary cc w/encls: Distribution via ListServ DISTRIBUTION:
PUBLIC RidsNrrDorlLpl3-1 Resource RidsNrrPMMonticello Resource RidsNrrLATHarris Resource RidsOGCRp Resource RidsAcrsAcnw_MailCTR Resource RidsNrrDirsSbpb B. Parks, NRR T. Huang, NRR RidsNrrDorlDpr RidsRgn3MailCenter Resource LPL3-1 rtf Accession No.: ML091760769 OFFICE LPL3-1/PM LPL3-1/LA SRXB SRXB SRXB/BC LPL3-1/BC NAME PTam BTully BParks THuang GCranston LJames ITHarris for DATE 07/14/09 06/30/09 07/05/09 07/06/09 07/10/09 07/16/09 OFFICIAL RECORD COPY
