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| {{#Wiki_filter:1NRR-PMDAPEm ResourceFrom:Lyon, FredSent:Wednesday, July 30, 2014 6:37 AMTo:Williams, Lisa L. (llwilliams@energy-northwest.com)Cc:George, Andrea | | {{#Wiki_filter:1NRR-PMDAPEm Resource From:Lyon, Fred Sent:Wednesday, July 30, 2014 6:37 AM To:Williams, Lisa L. (llwillia ms@energy-northwest.com) |
| | Cc:George, Andrea |
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| ==Subject:== | | ==Subject:== |
| FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863)Attachments:Setpoint terminology.pdfBased on our phoncon yesterday, this is the information that EICB requires to continue our safety evaluation of the LAR (MF2863). | | FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863) |
| | Attachments: |
| | Setpoint terminology.pdfBased on our phoncon yesterday, this is the information that EICB requires to continue our safety evaluation of the LAR (MF2863). |
|
| |
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| NRC staff expects to see at least the following ingredients in the licensee's setpoint methodology. Please refer to the attached slide for the setpoint terminology. 1. Licensee's methodology for consistently establishing adequate margins (Total Loop Uncertainty Allowance) between the limiting and/or nominal trip setpoints and the plant analytical limits. These margins should be reflective of NRC staff guidance (e.g., use of accurate estimates of statistical (95/95) and bias terms for channel performance errors, use of appropriate channel performance modeling assumptions that reflect actual plant engineering and maintenance practices, controlled data, etc.) 2. Licensee's methodology for establishing conservatively small, but practically-applied acceptance tolerance bands for "as-found" channel performance deviation, and "as-left" post-calibration setting tolerances that can be used to assure a tight control on allowed setpoint deviations, while permitting a knowledgeable assessment of channel operability. | | NRC staff expects to see at least the following ingredient s in the licensee's setpoint methodology. Please refer to the attached slide for the setpoint terminology. |
| : 3. It would help the staff to see how these margins and tolerances relate to the Allowable Value published in the plant Technical Specifications. This could be in the form of a Figure that shows the relationship among all the values presented, perhaps with a few examples of the attached slide with the values filled in. Please let me know if you have any additional questions. Thanks, Fred Hearing Identifier: NRR_PMDA Email Number: 1460 Mail Envelope Properties (Fred.Lyon@nrc.gov20140730063700) | | : 1. Licensee's methodology for consistently establishing adequate margins (Total Loop Uncertainty Allowance) between the limiting and/or nominal trip setpoints and the plant analytical limits. These margins should be reflective of NRC staff guidance (e.g., use of accurate estimates of statistical (95/95) and bias terms for channel performance errors, use of appropriate channel performance modeling assumptions that reflect actual plant engineering and maintenance practices, controlled data, etc.) |
| | : 2. Licensee's methodology for establishing conservatively small, but practically-applied acceptance tolerance bands for "as-found" channel performance deviation, and "as-left" post-calibration setting tolerances that can be used to assure a tight control on allowed setpoint deviations, while permitting a knowledgeable assessment of channel operability. |
| | : 3. It would help the staff to see how these margins and tolerances relate to the Allowable Value published in the plant Technical Specifications. This could be in the form of a Figure that shows the relationship among all the values presented, perhaps with a few examples of the attached slide with the values filled in. |
| | Please let me know if you have any additional questions. Thanks, Fred Hearing Identifier: NRR_PMDA Email Number: 1460 Mail Envelope Properties (Fred.Lyon@nrc.gov20140730063700) |
|
| |
|
| ==Subject:== | | ==Subject:== |
| FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863) Sent Date: 7/30/2014 6:37:12 AM Received Date: 7/30/2014 6:37:00 AM From: Lyon, Fred Created By: Fred.Lyon@nrc.gov Recipients: "George, Andrea" <Andrea.George@nrc.gov> Tracking Status: None "Williams, Lisa L. (llwilliams@energy-northwest.com)" <llwilliams@energy-northwest.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 1600 7/30/2014 6:37:00 AM Setpoint terminology.pdf 80952 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: | | FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863) Sent Date: 7/30/2014 6:37:12 AM Received Date: 7/30/2014 6:37:00 AM From: Lyon, Fred Created By: Fred.Lyon@nrc.gov Recipients: "George, Andrea" <Andrea.George@nrc.gov> Tracking Status: None "Williams, Lisa L. (llwilliams@energy-northwest.com)" <llwilliams@energy-northwest.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 1600 7/30/2014 6:37:00 AM Setpoint terminology.pdf 80952 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: |
| U.S. Nuclear Regulatory CommissionRIS 2006-17Basic RelationshipsSafety LimitAnalytical LimitTotal Loop Allowable Value Uncertainty AllowanceLimiting Trip SetpointAs-Found (Upper Limit)SettingToleranceNominal Trip Setpoint(As-Left Band)As-Found (Lower Limit)1}} | | U.S. Nuclear Regulatory Commission RIS 2006-17 Basic Relationships Safety LimitAnalytical LimitTotal Loop Allowable Value |
| | |
| | Uncertainty AllowanceLimiting Trip SetpointAs-Found (Upper Limit)SettingToleranceNominal Trip Setpoint (As-Left Band)As-Found (Lower Limit) 1}} |
Letter Sequence Other |
|---|
TAC:MF2863, Clarify Application of Setpoint Methodology for LSSS Functions (Withdrawn, Closed) |
|
MONTHYEARGO2-13-138, License Amendment Request for Adoption of TSTF-493, Revision 4, Option a2013-10-0202 October 2013
License Amendment Request for Adoption of TSTF-493, Revision 4, Option a
Project stage: Request
ML13317C1042013-11-13013 November 2013
NRR E-mail Capture - Acceptance Review
Project stage: Acceptance Review
ML14111A0932014-04-30030 April 2014
Request for Additional Information - License Amendment Request to Adopt TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a
Project stage: RAI
GO2-14-103, Proposed Revision to License Amendment Request to Adopt TSTF-493, Revision 4, Option a, and Response to Request for Additional Information2014-06-19019 June 2014
Proposed Revision to License Amendment Request to Adopt TSTF-493, Revision 4, Option a, and Response to Request for Additional Information
Project stage: Response to RAI
ML14211A1332014-07-30030 July 2014
NRR E-mail Capture - Fyi: Follow Up Question for Columbia, Regarding Implementation of TSTF-493, Option a
Project stage: Other
ML14251A0802014-09-0505 September 2014
NRR E-mail Capture - Follow Up Question for Columbia, Regarding Implementation of TSTF-493, Option a
Project stage: Other
ML14307A8692014-11-0303 November 2014
Agenda for Meeting with TSTF
Project stage: Request
GO2-14-164, Response to NRC Request for Additional Information Re License Amendment Request for Adoption of TSTF-493, Revision 4, Option a2014-11-17017 November 2014
Response to NRC Request for Additional Information Re License Amendment Request for Adoption of TSTF-493, Revision 4, Option a
Project stage: Response to RAI
ML14349A4942014-12-0909 December 2014
Withdrawal of License Amendment Request for Adoption of TSTF-493, Revision 4, Option a
Project stage: Withdrawal
ML14351A4412014-12-22022 December 2014
Letter, Withdrawal of License Amendment Request, Adoption of TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a
Project stage: Withdrawal
ML15008A0042015-01-13013 January 2015
Correction Letter, Withdrawal of License Amendment Request, Adoption of TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a
Project stage: Withdrawal
ML14352A0802015-01-13013 January 2015
Federal Register Notice, Withdrawal of License Amendment Request, Adoption of TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a
Project stage: Withdrawal
NRC-2014-0010, Federal Register Notice, Withdrawal of License Amendment Request, Adoption of TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a2015-01-13013 January 2015
Federal Register Notice, Withdrawal of License Amendment Request, Adoption of TSTF-493-A, Revision 4, Clarify Application of Setpoint Methodology for LSSS Functions, Option a
Project stage: Withdrawal
2014-12-09
[Table View] |
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Category:E-Mail
MONTHYEARML24008A0022024-01-0505 January 2024
NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of License Amendment Request for Application to Revise TS to Adopt TSTF-584, Eliminate Automatic RWCU System Isolation on SLC Initiation - EPID L-2023-LLA-0170
ML23278A0042023-10-0404 October 2023
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise Technical Specifications to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling - EPID L-2023-LLA-0128
ML23275A0092023-09-29029 September 2023
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise Tech Specs to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling - EPID: L-2023-LLA-0128
ML23150A2502023-05-26026 May 2023
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - License Amendment Request to Clean-Up Operating License and Appendix a, Technical Specifications - EPID L-2023-LLA-0062
ML23124A2412023-05-0404 May 2023
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise TS to Adopt TSTF-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position - EPID L-2023-LLA-0063
ML23124A0062023-05-0303 May 2023
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - Application to Revise Tech Specs to Adopt TSTF-541, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling - EPID L-2023-LLA-0063
ML23065A0422023-02-23023 February 2023
NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2022 Biological Monitoring Report
ML22343A1802022-12-0808 December 2022
February 2023 Emergency Preparedness Program Inspection - Request for Information
ML22349A2002022-12-0101 December 2022
NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2022 Priority Pollutant Discharge Monitoring Report
ML22312A0042022-11-0707 November 2022
NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of Fourth 10 Year ISI RR 4ISI-11 - EPID L-2022-LLR-0071
ML22301A1432022-10-28028 October 2022
NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Adopt TSTF-505 - EPID L-2022-LLA-0023
ML22256A2002022-09-13013 September 2022
NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2
ML22241A0182022-08-26026 August 2022
NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2
ML22235A1052022-08-22022 August 2022
August 2022 Emergency Preparedness Exercise Inspection Request for Information
ML22210A0072022-07-28028 July 2022
NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2
ML22173A0682022-06-17017 June 2022
Email Concurrence on SE Input for Columbia Pltr LAR
ML22166A4122022-06-15015 June 2022
NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - Application to Revise TS to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling - EPID L-2022-LLA-0081
ML22144A0342022-05-18018 May 2022
NRR E-mail Capture - Draft - Request for Additional Information - Columbia Generating Station - LAR to Change TS 3.4.11 - Reactor Coolant System Pressure and Temperature Limits - EPID L-2021-LLA-0191
ML22075A3392022-03-15015 March 2022
NRR E-mail Capture - Columbia Generating Station - Audit Questions - Regulatory Audit of License Amendment Request to Adopt 50.69 - Categorization Process - EPID L-2021-LLA-0207
ML22067A0132022-03-0707 March 2022
NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of License Amendment Request to Adopt TSTF-505, Revision 2, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4b - EPID L-2022-LLA-0023
A002515, NRR E-mail Capture - (External Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report2022-01-12012 January 2022
NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report
ML21348A1852021-12-14014 December 2021
NRR E-mail Capture - LIC-109 Acceptance Review - Columbia - License Amendment Request to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors - EPID L-2021-LLA-0207
ML21335A0182021-11-30030 November 2021
NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of Requested Licensing Action - License Amendment Request to Change TS 3.4.11 Reactor Coolant System Pressure and Temperature Limits - EPID L-2021-LLA-0191
ML21216A0502021-08-0303 August 2021
NRR E-mail Capture - Final - Request for Additional Information - Columbia - License Amendment Request to Adopt TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO EPID L-2021-LLA-0259
ML21209A9792021-07-28028 July 2021
NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Remove License Condition 2.C.(34) and Revise License Condition 2.C.(35) - EPID L-2021-LLA-0074
ML21162A3062021-06-11011 June 2021
NRR E-mail Capture - LIC-109 Acceptance Review - Columbia Generating Station - License Amendment Request to Adopt TSTF-546, Revise APRM Channel Adjustment Surveillance Requirement - EPID L-2021-LLA-0084
ML21137A0012021-05-14014 May 2021
NRR E-mail Capture - LIC-109 Acceptance Review - Columbia Generating Station - License Amendment Request to Remove License Condition 2.C.(34) and Revise License Condition 2.C.(35) - EPID L-2021-LLA-0074
ML21120A1182021-04-30030 April 2021
NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - On-Site Cooling System Sediment Disposal Approval Request - EPID L-2020-LLL-0031
ML21109A2762021-04-0808 April 2021
Email Request for Information for Columbia Generating Station'S PIR Inspection_Redacted
ML21068A2842021-03-0404 March 2021
2021002 Inservice Inspection (ISI) Request for Information (RFI)
ML21036A2932021-02-0404 February 2021
NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2020 Biological Monitoring Report
ML20357B1502020-12-22022 December 2020
NRR E-mail Capture - LIC-109 Acceptance Review - Columbia - License Amendment Request - Adoption of TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO, Rev. 2 - EPID L-2020-LLA-0259
ML20336A1852020-11-30030 November 2020
NRR E-mail Capture - Final - RAI - Columbia - One -Time Exemption from 10 CFR 73, App B, Sect VI, Subsection C.3.(l)(1) Regarding Annual Force-On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172
ML20325A0402020-11-19019 November 2020
NRR E-mail Capture - Draft - RAI - Columbia - One -Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(I)(1) Regarding Annual Force -On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172
ML20314A0452020-11-0606 November 2020
NMFS to Energy Northwest, Entrainment Study Results for Columbia Generating Station
ML20297A3032020-10-22022 October 2020
NRR E-mail Capture - LIC-109 Acceptance Review of License Amendment Request for Columbia - Application to Revise Tech Specs to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements - EPID L-2020-LLA-0212
ML20267A5162020-09-23023 September 2020
NRR E-mail Capture - Columbia Generating Station - Final - Request for Additional Information - Fourth Ten-Year Interval Inservice Inspection (ISI) Program Relief Request 4ISI-09 - EPID L-2020-LLR-0068
ML20265A3242020-09-20020 September 2020
Email 9-20-2020 - Req_ Kick-Off Call Columbia Generating Station RFI Provided for Roll-Back EP Program Inspection (Week of Nov 2 2020)
ML20245E2822020-08-31031 August 2020
NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time
ML20239A9702020-08-26026 August 2020
NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time
ML20149K4362020-05-26026 May 2020
NRR E-mail Capture - Formal RAIs for Columbia (COVID-19) QA Plan Change Surveillance, Request Response by Tuesday June 2, 2020
ML20136A0112020-05-14014 May 2020
NRR E-mail Capture - Acceptance Columbia Relief Request ISI Reactor Pressure Vessel Feedwater Nozzles, 4ISI-09
ML20112F4572020-04-21021 April 2020
NRR E-mail Capture - Official Release of NRC RAIs for Columbia Covid Exigent Due Friday April 24, 2020
ML20090F5532020-03-30030 March 2020
NRR E-mail Capture - Accepted: Columbia Relief Request, EPID: L-2020-LLR-0035
ML20063G1522020-03-0202 March 2020
NRR E-mail Capture - Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-564 Amendment
ML20056E3592020-02-25025 February 2020
NRR E-mail Capture - Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-566 Amendment
ML20034E6082020-02-0303 February 2020
NRR E-mail Capture - RAI Formal Release Columbia TSTF 563 LAR, 30 Day Response Period Due March 3, 2020
ML20013G7642020-01-10010 January 2020
Revised Questions to Support the Columbia SPRA Audit
ML19305C9342019-11-0101 November 2019
50.54(f) SPRA Submittal - Completeness Review Done and Path Forward
ML19291A0322019-10-17017 October 2019
NRR E-mail Capture - Subject: Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-529 Amendment
2024-01-05
[Table view] |
Text
1NRR-PMDAPEm Resource From:Lyon, Fred Sent:Wednesday, July 30, 2014 6:37 AM To:Williams, Lisa L. (llwillia ms@energy-northwest.com)
Cc:George, Andrea
Subject:
FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863)
Attachments:
Setpoint terminology.pdfBased on our phoncon yesterday, this is the information that EICB requires to continue our safety evaluation of the LAR (MF2863).
NRC staff expects to see at least the following ingredient s in the licensee's setpoint methodology. Please refer to the attached slide for the setpoint terminology.
- 1. Licensee's methodology for consistently establishing adequate margins (Total Loop Uncertainty Allowance) between the limiting and/or nominal trip setpoints and the plant analytical limits. These margins should be reflective of NRC staff guidance (e.g., use of accurate estimates of statistical (95/95) and bias terms for channel performance errors, use of appropriate channel performance modeling assumptions that reflect actual plant engineering and maintenance practices, controlled data, etc.)
- 2. Licensee's methodology for establishing conservatively small, but practically-applied acceptance tolerance bands for "as-found" channel performance deviation, and "as-left" post-calibration setting tolerances that can be used to assure a tight control on allowed setpoint deviations, while permitting a knowledgeable assessment of channel operability.
- 3. It would help the staff to see how these margins and tolerances relate to the Allowable Value published in the plant Technical Specifications. This could be in the form of a Figure that shows the relationship among all the values presented, perhaps with a few examples of the attached slide with the values filled in.
Please let me know if you have any additional questions. Thanks, Fred Hearing Identifier: NRR_PMDA Email Number: 1460 Mail Envelope Properties (Fred.Lyon@nrc.gov20140730063700)
Subject:
FYI: Follow up question for Columbia, regarding implementation of TSTF-493, Option A (TAC No. MF2863) Sent Date: 7/30/2014 6:37:12 AM Received Date: 7/30/2014 6:37:00 AM From: Lyon, Fred Created By: Fred.Lyon@nrc.gov Recipients: "George, Andrea" <Andrea.George@nrc.gov> Tracking Status: None "Williams, Lisa L. (llwilliams@energy-northwest.com)" <llwilliams@energy-northwest.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 1600 7/30/2014 6:37:00 AM Setpoint terminology.pdf 80952 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
U.S. Nuclear Regulatory Commission RIS 2006-17 Basic Relationships Safety LimitAnalytical LimitTotal Loop Allowable Value
Uncertainty AllowanceLimiting Trip SetpointAs-Found (Upper Limit)SettingToleranceNominal Trip Setpoint (As-Left Band)As-Found (Lower Limit) 1
