Letter Sequence Other |
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TAC:ME1476, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
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
- Meeting
Results
Other: ML092460553, ML092460595, ML092460596, ML100190073, ML100190074, ML100190075, ML100190076, ML100190077, ML101300006, ML101900448, ML101900449, ML101900450, ML101950497, ML101950498, ML103050187, ML110460160, ML110880302, ML11171A060, ML111920326, ML111950133, ML112031112, ML112081701, ML112160736, ML11221A013, ML112450479, ML112460008, ML112460009, ML113340186, ML120050150, ML120250137, ML12313A203, ML12313A204, ML12313A206, NRC-2010-0117, Final Environmental Assessment and Finding of No Significant Impact - Federal Register Notice - Related to the Proposed License Amendment to Increase the Maximum Reactor Power Level
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MONTHYEARML1001900772004-03-31031 March 2004 GE-NE-0000-0024-6517-R0, Safer/Gestr Loss-of-Coolant Accident Analysis for GE14 Fuel. Project stage: Other ML0916101032009-05-27027 May 2009 License Amendment Request (LAR) Pursuant to 10 CFR 50.90: Extended Power Uprate Project stage: Request ML0918906662009-07-0808 July 2009 E-mail from R. Guzman to J. Dosa Acceptance Review Results of NMP2 Extended Power Uprate Application Project stage: Acceptance Review ML0919402542009-07-15015 July 2009 Acceptance Review of License Amendment Request Extended Power Uprate Project stage: Acceptance Review ML0924605502009-08-28028 August 2009 Response to Acceptance Review Comments License Amendment Request for Extended Power Uprate Project stage: Request ML0924605962009-08-28028 August 2009 Attachment 2 - CDI Report 09-26NP, Revision 0, (Non-Proprietary) Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Part 2 of 2 Project stage: Other ML0924605952009-08-28028 August 2009 Attachment 2 - CDI Report 09-26NP, Revision 0, (Non-Proprietary) Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Part 1 of 2 Project stage: Other ML0924605532009-08-28028 August 2009 Attachment 3 - CDI Report 08-08NP, Revision 2, (Non-Proprietary) Acoustic and Low Frequency Hydrodynamic Loads at CLTP Power Level on Nine Mile Point, Unit 2 Steam Dryer to 250 Hz Project stage: Other ML0924502742009-09-0202 September 2009 Acceptance Review Determination of Amendment Request and Supplemental Information Extended Power Uprate Project stage: Acceptance Review ML1019704202009-09-18018 September 2009 E-mail from R. Guzman to J. Dosa Request for Additional Information - Clarification of Applicability of GEH Methods Project stage: RAI ML0928100032009-10-0808 October 2009 Request for Additional Information Nine Mile Point Unit 2 (NMP2) Extended Power Uprate Application License Amendment Request Project stage: RAI ML0930800012009-11-13013 November 2009 Request for Additional Information Extended Power Uprate Project stage: RAI ML0931900032009-11-18018 November 2009 Request for Additional Information the License Amendment Request for Extended Power Uprate Project stage: RAI ML0934300032009-12-10010 December 2009 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement Dated August 28, 2009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML0932706132009-12-10010 December 2009 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation Dated May 27, 2009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML0934106852009-12-10010 December 2009 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation Dated May 27, 2009 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML0935110252009-12-23023 December 2009 Request for Additional Information Extended Power Uprate License Amendment Request Project stage: RAI ML1001900722009-12-23023 December 2009 Response to Request for Additional Information, Regarding License Amendment Request for Extended Power Uprate Operation Project stage: Response to RAI ML1001900732009-12-31031 December 2009 C.D.I. Technical Note No. 09-17NP, Limit Curve Analysis with ACM Rev. 4 for Power Ascension at Nine Mile Point, Unit 2, Revision 0 Project stage: Other ML1001900742009-12-31031 December 2009 C.D.I. Report No. 08-08NP, Acoustic and Low Frequency Hydrodynamic Loads at CLTP Power Level on Nine Mile Point Unit 2 Steam Dryer to 250 Hz, Revision 3 Project stage: Other ML1001900752009-12-31031 December 2009 CDI Report No. 09-26NP, Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Cover to Page 62, Revision 1 Project stage: Other ML1001900762009-12-31031 December 2009 CDI Report No. 09-26NP, Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Page 63 Through 130, Revision 1 Project stage: Other ML1019704362010-01-12012 January 2010 E-mail from R. Guzman to T. Darling Request for Additional Information - Extended Power Uprate LAR Standby Liquid Control System Project stage: RAI ML1019704452010-01-27027 January 2010 E-mail from R. Guzman to T. Darling Request for Additional Information Extended Power Uprate - Clarification for Piping NDE Review Project stage: RAI ML1019704532010-02-0101 February 2010 E-mail from R. Guzman to T. Darling Request for Additional Information Extended Power Uprate LAR - Clarification in Fire Protection Review RAI D1, D3 Project stage: RAI ML1005505992010-02-19019 February 2010 Response to Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Operation Project stage: Response to RAI ML1006301122010-03-10010 March 2010 Request for Additional Information - Extended Power Uprate License Amendment Request Mechanical & Civil Engineering Review Project stage: RAI ML1006902762010-03-10010 March 2010 E-mail from R.Guzman to T.Darling Request for Additional Information - Containment & Ventilation Branch - Extended Power Uprate Project stage: RAI ML1006301082010-03-10010 March 2010 Request for Additional Information Steam Dryer Review of the License Amendment Request for Extended Power Uprate Operation Project stage: RAI ML1005508412010-03-16016 March 2010 Letter Transmitting the Draft Environmental Assessment for Nine Mile Point Nuclear Station Extended Power Uprate for Unit No. 2 Project stage: Draft Other ML1006804292010-04-0202 April 2010 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement Dated December 23, 2009 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML1006804412010-04-0202 April 2010 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement December 23,2 009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML1006804482010-04-0202 April 2010 Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement February 19, 2010 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2 Project stage: Withholding Request Acceptance ML1008500412010-04-0202 April 2010 Summary of Audit Related to the Review of the Extended Power Uprate License Amendment Request of Nine Mile Point Nuclear Station, Unit No. 2 Project stage: Approval ML1008500512010-04-0202 April 2010 Correction Notice to Draft Environmental Assessment for Nine Mile Point Nuclear Station Proposed Extended Power Uprate Amendment for Unit No. 2 Project stage: Draft Other ML1008501072010-04-0202 April 2010 Letter Transmitting Correction to the Notice for the Draft Environmental Assessment and Finding of No Significant Impact for Nine Mile Point Nuclear Station, Unit No. 2 Project stage: Draft Other ML1013000062010-04-14014 April 2010 Follow-Up Questions - EPU Vessels and Integrity Review Project stage: Other ML1011206582010-04-16016 April 2010 Response to Request for Additional Information Re License Amendment Request for Extended Power Uprate Operation Project stage: Response to RAI ML1013803072010-05-0707 May 2010 Response to Request for Additional Information Regarding Steam Dryer Review of the License Amendment Request for Extended Power Uprate Operation Project stage: Response to RAI ML1013200242010-05-10010 May 2010 E-mail from R. Guzman to T. Darling/J. Dosa Request for Additional Information - LOCA Analysis, Extended Power Uprate Project stage: RAI ML1012504242010-05-11011 May 2010 Request for Additional Information Extended Power Uprate License Amendment Request - Reactor System Review Project stage: RAI ML1016101682010-06-0303 June 2010 Response to Request for Additional Information Regarding the License Amendment Request for Extended Power Uprate Operation- Reactor Systems Review Project stage: Response to RAI ML1015908092010-06-0808 June 2010 Request for Additional Information Extended Power Uprate - Probabilistic Risk Assessment Review Project stage: RAI ML1015906522010-06-10010 June 2010 Review of Extended Power Uprate Application and Revised Review Schedule Project stage: Approval ML1019604812010-06-15015 June 2010 E-mail from R.Guzman to T.Darling Request for Additional Information Follow-up RAI - Reactor Systems/Criticality Analysis Project stage: RAI ML1019004492010-06-30030 June 2010 C.D.I. Report No. 10-10NP, Acoustic and Low Frequency Hydrodynamic Loads at CLTP Power Level on Nine Mile Point Unit 2 Steam Dryer to 250 Hz Using ACM Rev. 4.1, Rev. 1 Project stage: Other ML1019004502010-06-30030 June 2010 Calculation SIA 100632.301, Revision 0, May 2010 Nine Mile Point Unit 2 Main Steam Line Strain Gage Data Reduction. Project stage: Other ML1019004482010-06-30030 June 2010 C.D.I. Report No. 10-09NP, ACM Rev. 4.1: Methodology to Predict Full Scale Steam Dryer Loads from In-Plant Measurements, Rev. 1 (Non-Proprietary) Project stage: Other ML1019004472010-06-30030 June 2010 Response to Request for Additional Information Regarding the License Amendment Request for Extended Power Uprate Operation - Steam Dryer and Probabilistic Risk Assessment Project stage: Response to RAI ML1019504952010-07-0909 July 2010 Response to Request for Additional Information Regarding the License Amendment Request for Extended Power Uprate Operation, Non-Proprietary Version of Continuum Dynamics, Inc. Report 10-11 Project stage: Response to RAI 2010-02-01
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Category:E-Mail
MONTHYEARML24213A2202024-07-31031 July 2024 Updated Change in Estimated Review Schedule Revision to TS Design Features Section to Remove the Nine Mile Point Unit 3 Nuclear Project, LLC ML24197A0092024-07-15015 July 2024 Acceptance Review Determination for LAR to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24156A0082024-05-31031 May 2024 NRR E-mail Capture - Constellation Energy, LLC - Fleet Request - Acceptance of Proposed Alternative Concerning Extension of Permanent Relief from Ultrasonic Examination of Reactor Pressure Vessel Circumferential Shell Welds (L-2024-LLR-0031 ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24122B5072024-05-0101 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-591, Revision 0 ML24008A2622024-01-0808 January 2024 Acceptance Review Determination for Relief Request I5R-12, Concerning Installation of a FSWOL on RPV Recirculation Inlet Nozzle N2E Safe End-to-Nozzle Dissimilar Metal Weld ML24008A0592024-01-0808 January 2024 E-mail Dated 1-8-2024 from R. Guzman to R. Reynolds Correct TS Page 204 for License Amendment No. 250 Adoption of TSTF-505 ML23268A0022023-09-22022 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-264-A, Revision 0 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23255A2872023-09-12012 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Alternative to Use the Successive Inspection Requirements of BWRVIP-75-A ML23237B3972023-08-24024 August 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Alternative Request to Use Updated BWRVIP Guidelines ML23205A2432023-07-19019 July 2023 NRC Staff Follow-up Question on Audit Question 18 TSTF-505 and 50.69 Regulatory Audit (E-mail Dated 7/19/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) 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 ML23205A2412023-07-11011 July 2023 NRC Staff Follow-up Comments on Audit Questions 6a, 6b, and 6c TSTF-505 and 50.69 Regulatory Audit (E-mail Dated 7/11/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23205A2422023-07-11011 July 2023 NRC Staff Follow-up Comments on Audit Questions 17 and 19 TSTF-505 and 50.69 Regulatory Audit (E-mail Dated 7/11/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23209A7692023-06-14014 June 2023 Draft Audit Results File TSTF-505 and 50.69 (E-mail Dated 6/14/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23209A7672023-06-13013 June 2023 Share File Observations on Response to Question 06 and 22 TSTF-505 and 50.69 (E-mail Dated 6/13/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23163A2292023-06-12012 June 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-580, Revision 1 ML23159A0052023-06-0505 June 2023 56557-EN 56557 - Paragon - Redlined ML23149A0012023-05-29029 May 2023 Audit Agenda TSTF-505 and 50.69 (E-mail Dated 5/29/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23142A0222023-05-22022 May 2023 Regulatory Audit Questions (PRA) TSTF-505 and 50.69 (E-mail Dated 5/22/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23118A3882023-04-28028 April 2023 Regulatory Audit Questions TSTF-505 and 50.69 (E-mail Dated 4/28/2023) (EPIDs L-2022-LLA-0185 and L-2022-LLA-0186) ML23104A3472023-04-14014 April 2023 Verbal Authorization for Relief Request I5R-14, Proposed Alternative Associated with N2E Dissimilar Metal Weld Overlay Repair with Laminar Indication ML23093A1782023-04-0303 April 2023 E-mail from T. Loomis to R. Guzman Proposed Alternative to Utilize Specific Provisions of Code Case N-716-3 ML23090A1302023-03-31031 March 2023 Verbal Authorization for Relief Request I5R-11, Proposed Alternative Repair of Recirculation Inlet Nozzle N2E Dissimilar Metal Weld ML23087A2912023-03-28028 March 2023 Request for Additional Information (3/28/2023 E-mail) - Proposed Emergent I5R-11 Alternative Associated with a Weld Overlay on RPV Recirculation Nozzle N2E DM Weld ML23061A0522023-03-0202 March 2023 Request for Additional Information (3/2/2023 E-mail) - Proposed Alternative Associated with a Weld Overlay Repair to the Torus ML23047A3832023-02-15015 February 2023 (2-15-2023 Email from J. Nelson to R. Guzman) Long Island Power Authority and Long Island Lighting Company Request for Threshold Determination ML23033A0142023-02-0202 February 2023 E-mail Dated 2-2-2023 from R.Guzman to R.Reynolds Correction to Error in NMP1 TSTF-505 and 50.69 Audit Plan ML23019A3092023-01-19019 January 2023 Acceptance Review Determination License Amendment Request to Adopt 10 CFR 50.69 Categorization Process ML23019A3032023-01-19019 January 2023 Acceptance Review Determination License Amendment Requets to Adopt TSTF-505 ML23013A3332023-01-13013 January 2023 Acceptance Review Determination Proposed Alternative for Weld Overlay Repair to the Torus ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI ML22342B1462022-11-21021 November 2022 NRR E-mail Capture - Acceptance Review for TSTF 295A ML22314A2262022-11-10010 November 2022 E-mail Dated 11/10/2022 Relief Request Associated with Pump Periodic Verification Tests of Core Spray System Pumps ML22301A0902022-10-28028 October 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-301, Revision 2 ML22252A1522022-09-0909 September 2022 Acceptance Review Determination Partial Adoption of TSTF-568 to Revise TS 3.3.1 for Primary Containment Oxygen Concentration ML22207A0192022-07-26026 July 2022 (E-mail Dated 7/26/2022) Setup of Online Reference Portal for Revision to Alternative Source Term Calculation for MSIV and Non-MSIV Leakage ML22207A0122022-07-26026 July 2022 Acceptance Review Determination Revision to Alternative Source Term Analysis for Containment Leakage ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22194A9412022-07-13013 July 2022 Request for Additional Information Relief Request CS-PR-02 (7/13/2022 e-mail) ML22173A0802022-06-22022 June 2022 E-mail Dated 6/22/2022, Acceptance of Requested License Amendment Request to Revise Surveillance Requirements to Reduce Number of Fast Starts of EDGs ML22075A0362022-03-16016 March 2022 Acceptance Review Determination - Relief Request CS-PR-02 Associated with Pump Periodic Verification Test of Core Spray System Pumps, E-mail Dated 3/16/2022 ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21320A3472021-11-16016 November 2021 Request for Additional Information LAR to Revise TSs to Adopt TSTF-582, Revision 0 ML21306A3312021-11-0202 November 2021 Request for Additional Information Alternative Request GV-RR-10 (11/2/2021 e-mail) ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21298A0912021-10-25025 October 2021 E-mail Dated 10/25/2021, Acceptance of Requested License Amendment Request to Adopt Technical Specification Task Force Traveler 582 2024-07-31
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Text
From: Dosa, John J [John.Dosa@cengllc.com]
Sent: Friday, September 02, 2011 3:56 PM To: Guzman, Richard Cc: Darling, Theresa H
Subject:
RE: Quick Question - SLC piping/component rerating modification This was completed as stated. If there was a SAR change associated, it would have been discussed in the Fall 2010 50.59 report associated with the SAR update. I will need to review that document.
From: Guzman, Richard [1]
Sent: Friday, September 02, 2011 3:47 PM To: Dosa, John J Cc: Darling, Theresa H
Subject:
Quick Question - SLC piping/component rerating modification John - as we discussed, can you verify that the modification described below was indeed completed during the Spring 2010 outage? Is there a docketed document out there from NMPNS that states this. See below.
NMPNS 2/19/11 RAI Response The SLCS pump relief valve setpoint maintains a 31.6 psi margin to relief valve lift, in addition to the 3% set pressure tolerance (42 psi). Therefore, the combined margin is 73.6 psi.
The overall combined accuracy of the test instrument is not accounted in the margin calculation. However, the instrument used for the set pressure determination meets the ASME OM CODE-2004, which is adopted in the NMP2 IST program. The gauge accuracy used in the set pressure determination is +/-0.5% compared to the code requirement of +/-1%.
The combined margin of 73.6 psi is recognized to provide minimally sufficient margin for SLCS pump relief valves, at both CLTP and EPU conditions. As such, the piping design pressure is being rerated and the relief valve set pressure increased to provide additional margin.
The margin of 73.6 psi was defined based on nominal relief valve setpoint of 1400 psi minus the pump discharge pressure of 1326.4 psi. This margin is 1 psi less than the existing margin that has been demonstrated effective at eliminating relief valve lift during surveillance testing.
However, for the current operating condition the 75 psi margin to SLCS relief valve nominal setpoint has not prevented relief valve seat seepage during SLCS pump surveillance testing. To resolve this issue the SLCS relief valve vendor has recommended maintaining approximately a 10% margin between the maximum SLCS pump pressure pulsation and the nominal relief valve setpoint. To achieve this margin the SLCS piping and components are being rerated to 1600 psig. The setpoint for the relief valve will be established to include at least a 10% margin between the maximum SLCS pump peak pressure pulsation and the relief valve minimum setpoint, (1459 psi) or approximately a 133 psi margin. The rerating of the piping to 1600 psig will provide the ability to increase the relief setting to a maximum of 1600 psi providing approximately a 20%
margin above the pump discharge pressure of 1326.4 psi. This modification is currently planned for implementation during the spring 2010 refueling outage.
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