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| | issue date = 07/10/2008 | | | issue date = 07/10/2008 |
| | title = Draft RAI Questions Recirculation Riser Differential Pressure Amendment, Instrumentation | | | title = Draft RAI Questions Recirculation Riser Differential Pressure Amendment, Instrumentation |
| | author name = Tam P S | | | author name = Tam P |
| | author affiliation = NRC/NRR/ADRO/DORL/LPLIII-1 | | | author affiliation = NRC/NRR/ADRO/DORL/LPLIII-1 |
| | addressee name = Blake T M, Marcus B S, Nakanishi T, Scales K V, Ward L W | | | addressee name = Blake T, Marcus B, Nakanishi T, Scales K, Ward L |
| | addressee affiliation = NRC/NRR/ADES/DE, NRC/NRR/ADES/DE/EICB, NRC/NRR/ADES/DSS, NRC/NRR/ADES/DSS/SNPB, Nuclear Management Co, LLC | | | addressee affiliation = NRC/NRR/ADES/DE, NRC/NRR/ADES/DE/EICB, NRC/NRR/ADES/DSS, NRC/NRR/ADES/DSS/SNPB, Nuclear Management Co, LLC |
| | docket = 05000263 | | | docket = 05000263 |
| | license number = DPR-022 | | | license number = DPR-022 |
| | contact person = Tam P S | | | contact person = Tam P |
| | case reference number = TAC MD6864 | | | case reference number = TAC MD6864 |
| | document type = E-Mail | | | document type = E-Mail |
| Line 25: |
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| Monticello - Draft RAI re. Recirc. Riser Differential Pressure, Instrumentation (TAC MD6864) | | Monticello - Draft RAI re. Recirc. Riser Differential Pressure, Instrumentation (TAC MD6864) |
| Rick: | | Rick: |
| We are continuing our review of your license amendment request associated with Function 2.j, Recirculation Riser Differential Pressure - High (Break Detection) in TS 3.3, "Emergency Core Cooling System Instrumentation," Table 3.3.5.1-1. By previous e-mails (3/18/03 and 3/27/08) I transmitted draft RAI questions generated by reviewers L. Ward and T. Nakaishi, and we are still waiting for response to those. Meanwhile, our Instrumentation and Controls Branch reviewers Kerby Scales and Barry Marcus have generated the following draft RAI questions; please set up a telephone conference with me to discuss these draft questions: | | We are continuing our review of your license amendment request associated with Function 2.j, Recirculation Riser Differential Pressure - High (Break Detection) in TS 3.3, "Emergency Core Cooling System Instrumentation," Table 3.3.5.1-1. By previous e-mails (3/18/03 and 3/27/08) I transmitted draft RAI questions generated by reviewers L. Ward and T. Nakaishi, and we are still waiting for response to those. Meanwhile, our Instrumentation and Controls Branch reviewers Kerby Scales and Barry Marcus have generated the following draft RAI questions; please set up a telephone conference with me to discuss these draft questions: |
| : 1. Setpoint Calculation Methodology: Provide documentation (including sample calculations) of the methodology used for establishing the limiting setpoint (or NSP) and the limiting acceptable values for the As-Found and As-Left setpoints as measured in periodic surveillance testing as described below. Indicate the related Analytical Limits and other limiting design values (and the sources of these values) for each setpoint. | | : 1. Setpoint Calculation Methodology: Provide documentation (including sample calculations) of the methodology used for establishing the limiting setpoint (or NSP) and the limiting acceptable values for the As-Found and As-Left setpoints as measured in periodic surveillance testing as described below. Indicate the related Analytical Limits and other limiting design values (and the sources of these values) for each setpoint. |
| : 2. For the Setpoint that is not determined to be SL-Related: Describe the measures to be taken to ensure that the associated instrument channel is capable of performing its specified safety functions in accordance with applicable design requirements and associated analyses. Include in your discussion information on the controls you employ to ensure that the As-Left trip setting after completion of periodic surveillance is consistent with your setpoint methodology. Also, discuss the plant corrective action processes (including plant procedures) for restoring channels to operable status when channels are determined to be "inoperable" or "operable but degraded." If the controls are located in a document other than the TS (e.g., plant test procedure), describe how it is ensured that the controls will be implemented. | | : 2. For the Setpoint that is not determined to be SL-Related: Describe the measures to be taken to ensure that the associated instrument channel is capable of performing its specified safety functions in accordance with applicable design requirements and associated analyses. Include in your discussion information on the controls you employ to ensure that the As-Left trip setting after completion of periodic surveillance is consistent with your setpoint methodology. Also, discuss the plant corrective action processes (including plant procedures) for restoring channels to operable status when channels are determined to be "inoperable" or "operable but degraded." If the controls are located in a document other than the TS (e.g., plant test procedure), describe how it is ensured that the controls will be implemented. |
| The sole purpose of this e-mail is to prepare you and others for the proposed telephone conference. With or without the conference, we plan to formally issue an RAI to you around July 25. Thus, this e-mail does not formally request for additional information or convey an NRC staff position. | | The sole purpose of this e-mail is to prepare you and others for the proposed telephone conference. With or without the conference, we plan to formally issue an RAI to you around July 25. Thus, this e-mail does not formally request for additional information or convey an NRC staff position. |
Letter Sequence Draft RAI |
|---|
TAC:MD6864, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
|
MONTHYEARML0727506332007-10-31031 October 2007
(MNGP) - Request for Withholding Information from Public Disclosure
Project stage: Withholding Request Acceptance
ML0807905152008-03-18018 March 2008
Draft RAI on Proposed Amendment Re Recirculation Riser Differential Pressure
Project stage: Draft RAI
ML0808804752008-03-27027 March 2008
Additional Question on the Proposed Recirculation Riser Differential Pressure Amendment
Project stage: Other
ML0819302482008-07-10010 July 2008
Draft RAI Questions Recirculation Riser Differential Pressure Amendment, Instrumentation
Project stage: Draft RAI
L-HU-08-019, Request for Continuation of NRC Reviews for Nuclear Management Co. Submittals on the Docket as of September 22, 20082008-09-0303 September 2008
Request for Continuation of NRC Reviews for Nuclear Management Co. Submittals on the Docket as of September 22, 2008
Project stage: Request
L-MT-08-045, Response to Requests for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function2008-09-0808 September 2008
Response to Requests for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function
Project stage: Response to RAI
L-MT-08-061, Response to 09/26/2008, Request for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function2008-11-0606 November 2008
Response to 09/26/2008, Request for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function
Project stage: Request
ML0830106242008-11-12012 November 2008
Letter to Determine Withholding Proprietary Information from Public Disclosure
Project stage: Other
ML0902800532009-01-20020 January 2009
Monticello, Response to November 14, 2008, Request for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - H
Project stage: Request
L-MT-09-007, Response to November 14, 2008, Request for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Funct2009-01-20020 January 2009
Response to November 14, 2008, Request for Additional Information for License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function
Project stage: Request
ML0905002592009-03-0303 March 2009
Letter to Approve Request to Withhold Document Containing Proprietary Information from Public Disclosure
Project stage: Other
L-MT-09-041, Supplement to License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function2009-04-0202 April 2009
Supplement to License Amendment Request: Revision to the Allowable Value and Channel Calibration Surveillance Interval for the Recirculation Riser Differential Pressure - High Function
Project stage: Supplement
ML0830406082009-04-0707 April 2009
Issuance of Amendment No. 161 Regarding Recirculation Riser Differential Pressure
Project stage: Approval
2008-07-10
[Table View] |
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Category:E-Mail
MONTHYEARML24022A0212024-01-20020 January 2024
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ML23353A0742023-12-19019 December 2023
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ML23227A2182023-08-15015 August 2023
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ML23219A1072023-08-0707 August 2023
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SLRA - Requests for Additional Information - Set 1 - Email from Marieliz Johnson to Christopher Domingos
ML23172A1122023-06-21021 June 2023
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ML23004A1982023-01-0404 January 2023
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ML23012A2102022-07-26026 July 2022
Letter Submitting Monticello Outline Package
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Audit Plan to Support Review of an Amendment to Transition to Atrium 11 Fuel (Redacted)
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Licensing Action License Amendment Request to Support Diesel Generator Fuel Oil Storage Tank Inspection
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Relief Request Alternative Related to Residual Heat Removal Heat Exchanger Flow Control Valve Stroke Timing
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Licensing Action License Amendment Request to Adopt Advanced Framatome Methodologies
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NRR E-mail Capture - Monticello TSTF-505, Request for Additional Information
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Licensing Action License Amendment Request to Adopt TSTF-564 Safety Limit MCPR
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Licensing Action License Amendment Request to Adopt TSTF-582 Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements (EPID L-2020-LLA-0209
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NRR E-mail Capture - Draft Request for Additional Information Monticello Alternative Request RR-016 Related to H8, H9, and H 10 Weld Examinations
ML20120A0272020-04-28028 April 2020
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ML20099F1292020-04-0606 April 2020
E-mail to Licensee for Monticello Lr Phase 4 RFI
ML20077L4632020-03-17017 March 2020
NRR E-mail Capture - Monticello Nuclear Generating Plant and Prairie Island Nuclear Generating Plant, Units 1 and 2 -Acceptance of Requested Licensing Action Request to Adopt TSTF-529
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NRR E-mail Capture - Monticello Nuclear Generating Plant - Acceptance of Requested Relief Request Alternative Revise the Previously Authorized Alternative in RR-008 for the H8 and H9 Welds
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[Table view] |
Text
Accession No. ML081930248
From: Peter Tam Sent: Thursday, July 10, 2008 8:04 AM To: 'tmblake@nmcco.com'; 'Rick Loeffler (richard.loeffler@nmcco.com)' Cc: Barry Marcus; Kerby Scales; Tony Nakanishi; Leonard Ward
Subject:
Monticello - Draft RAI re. Recirc. Riser Differential Pressure, Instrumentation (TAC MD6864)
Rick:
We are continuing our review of your license amendment request associated with Function 2.j, Recirculation Riser Differential Pressure - High (Break Detection) in TS 3.3, "Emergency Core Cooling System Instrumentation," Table 3.3.5.1-1. By previous e-mails (3/18/03 and 3/27/08) I transmitted draft RAI questions generated by reviewers L. Ward and T. Nakaishi, and we are still waiting for response to those. Meanwhile, our Instrumentation and Controls Branch reviewers Kerby Scales and Barry Marcus have generated the following draft RAI questions; please set up a telephone conference with me to discuss these draft questions:
- 1. Setpoint Calculation Methodology: Provide documentation (including sample calculations) of the methodology used for establishing the limiting setpoint (or NSP) and the limiting acceptable values for the As-Found and As-Left setpoints as measured in periodic surveillance testing as described below. Indicate the related Analytical Limits and other limiting design values (and the sources of these values) for each setpoint.
- 2. For the Setpoint that is not determined to be SL-Related: Describe the measures to be taken to ensure that the associated instrument channel is capable of performing its specified safety functions in accordance with applicable design requirements and associated analyses. Include in your discussion information on the controls you employ to ensure that the As-Left trip setting after completion of periodic surveillance is consistent with your setpoint methodology. Also, discuss the plant corrective action processes (including plant procedures) for restoring channels to operable status when channels are determined to be "inoperable" or "operable but degraded." If the controls are located in a document other than the TS (e.g., plant test procedure), describe how it is ensured that the controls will be implemented.
The sole purpose of this e-mail is to prepare you and others for the proposed telephone conference. With or without the conference, we plan to formally issue an RAI to you around July 25. Thus, this e-mail does not formally request for additional information or convey an NRC staff position.
Peter S. Tam, Senior Project Manager Plant Licensing Branch 3-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Tel. 301-415-1451 E-mail Properties Mail Envelope Properties ()
Subject:
Monticello - Draft RAI re. Recirc. Riser Differential Pressure, Instrumentation (TAC MD6864)
Sent Date: 07/09/2008 5:45:32 PM Received Date: 07/10/2008 8:04:00 AM From: Peter Tam
Created By: Peter.Tam@nrc.gov
Recipients:
tmblake@nmcco.com ('tmblake@nmcco.com') Tracking Status: None richard.loeffler@nmcco.com ('Rick Loeffler (richard.loeffler@nmcco.com)') Tracking Status: None Barry.Marcus@nrc.gov (Barry Marcus)
Tracking Status: None Kerby.Scales@nrc.gov (Kerby Scales)
Tracking Status: None Tony.Nakanishi@nrc.gov (Tony Nakanishi)
Tracking Status: None Leonard.Ward@nrc.gov (Leonard Ward)
Tracking Status: None
Post Office:
Files Size Date & Time
MESSAGE 14440 07/09/2008
Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False
Sensitivity: olNormal Recipients received:
