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| | number = ML16060A002 | | | number = ML16060A002 |
| | issue date = 02/26/2016 | | | issue date = 02/26/2016 |
| | title = 2016/02/26 NRR E-mail Capture - Palo Verde, Units 1, 2, and 3: Draft Request for Additional Information Amendment to Adopt TSTF-505 (CAC Nos. MF6576 MF6577 and MF6578) | | | title = NRR E-mail Capture - Palo Verde, Units 1, 2, and 3: Draft Request for Additional Information Amendment to Adopt TSTF-505 (CAC Nos. MF6576 MF6577 and MF6578) |
| | author name = Watford M M | | | author name = Watford M |
| | author affiliation = NRC/NRR/DORL/LPLIV-1 | | | author affiliation = NRC/NRR/DORL/LPLIV-1 |
| | addressee name = Cox M, Elkinton D, Stephenson C, Weber T N | | | addressee name = Cox M, Elkinton D, Stephenson C, Weber T |
| | addressee affiliation = Arizona Public Service Co | | | addressee affiliation = Arizona Public Service Co |
| | docket = 05000528, 05000529, 05000530 | | | docket = 05000528, 05000529, 05000530 |
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| | document type = E-Mail, Request for Additional Information (RAI) | | | document type = E-Mail, Request for Additional Information (RAI) |
| | page count = 4 | | | page count = 4 |
| | project = CAC:MF6576, CAC:MF6578, CAC:MF6577 | | | project = CAC:MF6576, CAC:MF6577, CAC:MF6578 |
| | stage = RAI | | | stage = Draft RAI |
| }} | | }} |
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| =Text= | | =Text= |
| {{#Wiki_filter:1NRR-PMDAPEm ResourceFrom:Watford, MargaretSent:Friday, February 26, 2016 11:19 AMTo:Carl Stephenson; Del Elkinton; Matthew Cox; Mike Dilorenzo; Tom WeberCc:Carte, Norbert; ONeal, Daniel; Miller, Ed | | {{#Wiki_filter:NRR-PMDAPEm Resource From: Watford, Margaret Sent: Friday, February 26, 2016 11:19 AM To: Carl Stephenson; Del Elkinton; Matthew Cox; Mike Dilorenzo; Tom Weber Cc: Carte, Norbert; ONeal, Daniel; Miller, Ed |
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| ==Subject:== | | ==Subject:== |
| Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re: Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578)Attachments:Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578).pdf | | Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re: |
| | Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578) |
| | Attachments: Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos. |
| | MF6576, MF6577, AND MF6578).pdf |
| | : Tom, By letter dated July 31, 2015 (Agencywide Documents Access and Management System Accession No. ML15218A300), Arizona Public Service Company submitted a license amendment request (LAR) regarding Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2 and 3. The proposed amendment would revise Technical Specifications (TS) to Implement TS Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times - RITSTF [Risk-informed TSTF] Initiative 4b. |
| | Based on the NRCs staff review of the LAR, the NRC staff has determined that additional information is necessary to support completion of its technical review. Please see the draft request for additional information (RAI) in the attached document. |
| | Thank you, Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A 1 |
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| | Hearing Identifier: NRR_PMDA Email Number: 2677 Mail Envelope Properties (Margaret.Watford@nrc.gov20160226111800) |
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| Hearing Identifier: NRR_PMDA Email Number: 2677 Mail Envelope Properties (Margaret.Watford@nrc.gov20160226111800)
| | ==Subject:== |
| | Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re: |
| | Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578) |
| | Sent Date: 2/26/2016 11:18:59 AM Received Date: 2/26/2016 11:18:00 AM From: Watford, Margaret Created By: Margaret.Watford@nrc.gov Recipients: |
| | "Carte, Norbert" <Norbert.Carte@nrc.gov> |
| | Tracking Status: None "ONeal, Daniel" <Daniel.ONeal@nrc.gov> |
| | Tracking Status: None "Miller, Ed" <Ed.Miller@nrc.gov> |
| | Tracking Status: None "Carl Stephenson" <carl.stephenson@aps.com> |
| | Tracking Status: None "Del Elkinton" <delbert.elkinton@aps.com> |
| | Tracking Status: None "Matthew Cox" <matthew.cox@aps.com> |
| | Tracking Status: None "Mike Dilorenzo" <michael.dilorenzo@aps.com> |
| | Tracking Status: None "Tom Weber" <thomas.n.weber@aps.com> |
| | Tracking Status: None Post Office: |
| | Files Size Date & Time MESSAGE 965 2/26/2016 11:18:00 AM Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578).pdf 84999 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: |
| | Recipients Received: |
| | |
| | REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO ADOPT TSTF-505 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 DOCKET NOS. STN 50-538, STN 50-529, AND STN 50-530 By letter dated July 31, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML15218A300), Arizona Public Service Company (the licensee) submitted a license amendment request (LAR) regarding Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2 and 3. The proposed amendment would revise Technical Specifications (TS) to Implement TS Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times - RITSTF [Risk-informed TSTF] Initiative 4b. |
| | Based on the NRCs staff review of the LAR, the NRC staff has determined the following additional information is necessary to support completion of its technical review: |
| | EICB-RAI-1 The staff seeks clarification on how probabilistic risk assessment (PRA) Functionality will be determined in the RICT program as implemented. The LAR does not describe conditions where Actuation Logic channels are INOPERABLE but PRA Functional. |
| | (a) Please provide several example conditions that would allow one or more Actuation Logic channels (see TS 3.3.6, Engineered Safety Features Actuation System (ESFAS) Logic and Manual Trip, Action E insert for TS page 3.3.6-2) to be considered both INOPERABLE and PRA Functional. |
| | (b) For each example in part (a), please include an evaluation against the criteria in NEI 06-09, Section 2.3.1, Configuration Risk Management Process & Application of Technical Specifications, Item Nos. 10 and 11. |
| | (c) The staff understands that by meeting the criteria in Items Nos. 10 and 11 in NEI 06-09, Section 2.3.1, all design basis events would be protected against. Please describe any associated design basis events that are NOT protected against in each example condition in part (a). |
| | EICB-RAI-2 , List of Revised Required Actions to Corresponding PRA Functions, to the model application for licensee adoption of TSTF-505 dated January 31, 2012 (ADAMS Accession No. ML12032A065) states: |
| | This enclosure [Enclosure 1] should provide a description of PRA functionality for each associated specified safety function that corresponds to each proposed Required Action that is applicable when all trains of equipment are inoperable as discussed in Section 2.3.1.10 of NEI 06-09. For example, the number and |
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| ==Subject:==
| | identity of instrumentation and control channels (or functions) required to be PRA functional is highly dependent on the specific plant and associated equipment design. guidance is included as part of the model application because the NRC staff seeks clarity on how PRA Functional will be used during full power operation following loss of a specified safety function or inoperability of all required trains or divisions of a system. |
| Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re: Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578) Sent Date: 2/26/2016 11:18:59 AM Received Date: 2/26/2016 11:18:00 AM From: Watford, Margaret Created By: Margaret.Watford@nrc.gov Recipients: "Carte, Norbert" <Norbert.Carte@nrc.gov> Tracking Status: None "ONeal, Daniel" <Daniel.ONeal@nrc.gov> Tracking Status: None "Miller, Ed" <Ed.Miller@nrc.gov>
| | In the LAR, Attachment 5, List of Revised Required Actions to Corresponding Probabilistic Risk Assessment Functions, the PRA Success Criteria is indicated as being the same as the Design Success Criteria, i.e. the same minimum number of channels actuate for some instrument and controls (I&C) functions. (Regarding: TS 3.3.4, Reactor Protective System (RPS) Logic and Trip Initiation, & TS 3.3.6) |
| Tracking Status: None "Carl Stephenson" <carl.stephenson@aps.com> Tracking Status: None "Del Elkinton" <delbert.elkinton@aps.com> Tracking Status: None "Matthew Cox" <matthew.cox@aps.com>
| | (a) Please confirm that the PRA Success Criteria ensures all associated design basis events are protected against in the condition where two Actuation Logic channels are INOPERABLE and PRA Functional or justify how adequate protection is maintained, if not. |
| Tracking Status: None "Mike Dilorenzo" <michael.dilorenzo@aps.com> Tracking Status: None "Tom Weber" <thomas.n.weber@aps.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 965 2/26/2016 11:18:00 AM Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578).pdf 84999 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
| | (b) Attachment 5 of the LAR identifies some I&C structure, system, and components that are partially modeled (or not modeled) in the PRA. Item No. 11 in NEI 06-09, Section 2.3.1 includes criteria for determining PRA Functionality of components, and these criteria were developed based on the assumption that the function would be modeled in the PRA. |
| REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO ADOPT TSTF-505 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 DOCKET NOS. STN 50-538, STN 50-529, AND STN 50-530 By letter dated July 31, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML15218A300), Arizona Public Service Company (the licensee) submitted a license amendment request (LAR) regarding Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2 and 3. The proposed amendment would revise Technical Specifications (TS) to Implement TS Task Force (TSTF)-505, Revision 1, "Provide Risk-Informed Extended Completion Times - RITSTF [Risk-informed TSTF] Initiative 4b."
| | (i) Please describe how PRA Functionality of these partial models (or un-modeled items) will be determined (i.e., how the criteria of Item No. 11 will be applied). |
| Based on the NRC's staff review of the LAR, the NRC staff has determined the following additional information is necessary to support completion of its technical review:
| | (ii) Please describe how PRA Functionality of bounding evaluations will be determined (i.e., how the criteria of Item No. 11 will be applied). |
| EICB-RAI-1 The staff seeks clarification on how probabilistic risk assessment (PRA) Functionality will be determined in the RICT program as implemented. The LAR does not describe conditions where Actuation Logic channels are INOPERABLE but PRA Functional. (a) Please provide several example conditions that would allow one or more Actuation Logic channels (see TS 3.3.6, "Engineered Safety Features Actuation System (ESFAS) Logic and Manual Trip," Action E insert for TS page 3.3.6-2) to be considered both INOPERABLE and PRA Functional. (b) For each example in part (a), please include an evaluation against the criteria in NEI 06-09, Section 2.3.1, "Configuration Risk Management Process & Application of Technical Specifications," Item Nos. 10 and 11. (c) The staff understands that by meeting the criteria in Items Nos. 10 and 11 in NEI 06-09, Section 2.3.1, all design basis events would be protected against. Please describe any associated design basis events that are NOT protected against in each example condition in part (a). EICB-RAI-2 Enclosure 1, "List of Revised Required Actions to Corresponding PRA Functions," to the model application for licensee adoption of TSTF-505 dated January 31, 2012 (ADAMS Accession No. ML12032A065) states: This enclosure [Enclosure 1] should provide a description of PRA functionality for each associated specified safety function that corresponds to each proposed Required Action that is applicable when all trains of equipment are inoperable as discussed in Section 2.3.1.10 of NEI 06-09. For example, the number and identity of instrumentation and control channels (or functions) required to be PRA functional is highly dependent on the specific plant and associated equipment design. Enclosure 1 guidance is included as part of the model application because the NRC staff seeks clarity on how PRA Functional will be used during full power operation following "loss of a specified safety function or inoperability of all required trains or divisions of a system." In the LAR, Attachment 5, "List of Revised Required Actions to Corresponding Probabilistic Risk Assessment Functions," the "PRA Success Criteria" is indicated as being the same as the "Design Success Criteria," i.e. the same minimum number of channels actuate for some instrument and controls (I&C) functions. (Regarding: TS 3.3.4, "Reactor Protective System (RPS) Logic and Trip Initiation," & TS 3.3.6) (a) Please confirm that the PRA Success Criteria ensures all associated design basis events are protected against in the condition where two Actuation Logic channels are INOPERABLE and PRA Functional or justify how adequate protection is maintained, if not. (b) Attachment 5 of the LAR identifies some I&C structure, system, and components that are partially modeled (or not modeled) in the PRA. Item No. 11 in NEI 06-09, Section 2.3.1 includes criteria for determining PRA Functionality of components, and these criteria were developed based on the assumption that the function would be modeled in the PRA. (i) Please describe how PRA Functionality of these partial models (or un-modeled items) will be determined (i.e., how the criteria of Item No. 11 will be applied). (ii) Please describe how PRA Functionality of bounding evaluations will be determined (i.e., how the criteria of Item No. 11 will be applied). EICB-RAI-3 NEI 06-09, Revision 0-A states that a RICT cannot be used in a condition where there is a total loss of TS specified safety function; however, it does not describe how to determine when a total loss of safety function has occurred. (a) For two Actuation Logic channels inoperable, please describe the process of how it will be determined if there is a total loss of TS specified safety function. Note: Title 10 of the Code of Federal Regulations (10 CFR) 50.72 and 50.73 require the reporting of the plant being in a degraded or unanalyzed condition (see NUREG-1022, Revision 3, Section 3.2.4, "Degraded or Unanalyzed Condition"), and conditions that could prevent the fulfillment of the safety function of systems (see NUREG-1022 Revision 3, Section 3.2.7, "Event or Condition that Could Have Prevented Fulfillment of Safety Function"). In the LAR, TS 5.5.20, "Risk Informed Completion Time Program," states: "Use of a RICT is permitted for emergent conditions which represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more of the trains are considered "PRA functional" as defined in Section 2.3.1 of the NEI 06-09 Revision 0 - A."
| | EICB-RAI-3 NEI 06-09, Revision 0-A states that a RICT cannot be used in a condition where there is a total loss of TS specified safety function; however, it does not describe how to determine when a total loss of safety function has occurred. |
| }} | | (a) For two Actuation Logic channels inoperable, please describe the process of how it will be determined if there is a total loss of TS specified safety function. |
| | Note: Title 10 of the Code of Federal Regulations (10 CFR) 50.72 and 50.73 require the reporting of the plant being in a degraded or unanalyzed condition (see NUREG-1022, Revision 3, Section 3.2.4, Degraded or Unanalyzed Condition), and conditions that could prevent the fulfillment of the safety function of systems (see NUREG-1022 Revision 3, Section 3.2.7, Event or Condition that Could Have Prevented Fulfillment of Safety Function). In the LAR, TS 5.5.20, Risk Informed Completion Time Program, states: |
| | Use of a RICT is permitted for emergent conditions which represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more of the trains are considered "PRA functional" as defined in Section 2.3.1 of the NEI 06-09 Revision 0 - A.}} |
Letter Sequence Draft RAI |
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CAC:MF6576, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4B, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO (Approved, Closed) CAC:MF6577, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4B, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO (Approved, Closed) CAC:MF6578, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4B, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO (Approved, Closed) |
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MONTHYEARML15065A0312015-02-27027 February 2015 License Amendment Request for Adoption of Technical Specifications Task Force (TSTF) Traveler TSTF-439-A, Revision 2, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO Project stage: Request ML15218A3002015-07-31031 July 2015 License Amendment Request to Revise Technical Specifications to Adopt TSTF-505-A, Revision 1, Risk-Informed Completion Times Project stage: Request ML15303A0982015-11-0909 November 2015 Acceptance Review Letter, License Amendment Request, Adopt Technical Specification Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times-RITSTF Initiative 4b Project stage: Acceptance Review ML16060A0022016-02-26026 February 2016 NRR E-mail Capture - Palo Verde, Units 1, 2, and 3: Draft Request for Additional Information Amendment to Adopt TSTF-505 (CAC Nos. MF6576 MF6577 and MF6578) Project stage: Draft RAI ML16064A4972016-03-0707 March 2016 Request for Additional Information, Adopt Technical Specification Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times-RITSTF Initiative 4b Project stage: RAI NL-17-0447, Response to Request for Additional Information on Technical Specifications Change to Adopt Risk Informed Completion Times2017-04-14014 April 2017 Response to Request for Additional Information on Technical Specifications Change to Adopt Risk Informed Completion Times Project stage: Response to RAI ML17307A1882017-11-0303 November 2017 License Amendment Request Supplement for Risk-Informed Completion Times Project stage: Supplement ML18074A0202018-03-20020 March 2018 Fpra FAQ 16-0011 Closure Memo Project stage: Request ML18094B1122018-04-0404 April 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Final RAIs for TSTF-505 (Initiative 4b) LAR (CAC Nos. MF6576, MF6577, and MF6578: EPID L-2015-LLA-0001) Project stage: RAI ML18124A0112018-05-0303 May 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official Eeob RAIs for TSTF-505 (4b) LAR (CAC Nos. MF6576, MF6577, and MF6578; EPID L-2015-LLA-0001) Project stage: RAI ML18138A4802018-05-18018 May 2018 Response to Request for Additional Information for Risk-Informed Completion Times Project stage: Response to RAI ML18152B8742018-06-0101 June 2018 Response to Electrical Engineering Operating Reactor Branch (Eeob) Request for Additional Information for Risk-Informed Completion Times Project stage: Request ML18221A5102018-08-23023 August 2018 Request for Additional Information License Amendment Request to Adopt Risk-Informed Completion Times (CAC Nos. MF6576, MF6577, and MF6578; EPID: L-2015-LLA-0001) Project stage: RAI ML18264A3182018-09-21021 September 2018 Response to Request for Additional Information for Risk-Informed Completion Times Project stage: Response to RAI ML18278A2952018-10-0505 October 2018 Response to Request for Additional Information for Risk-Informed Completion Times Supplemental Responses for Items 17.f and 21 Project stage: Supplement ML18275A2752018-10-10010 October 2018 Summary of September 14, 2018, Clarification Call with Arizona Public Service to Discuss the Incomplete Responses in the May 18, 2018, Letter the Adoption of Rict (CAC Nos. MF6576, MF6577, MF6578; EPID L-2015-LLA-0001) Project stage: Other ML19085A5252019-05-29029 May 2019 Issuance of Amendments Nos. 209, 209, and 209 - Regarding Adoption of Risk Informed Completion Times in Technical Specifications (CAC Nos. MF6576, MF6577, and MF6578; EPID L-2015-LLA-0001) Project stage: Approval 2018-10-05
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Category:E-Mail
MONTHYEARML24267A2172024-09-23023 September 2024 (E-Mail) Palo Verde Nuclear Generating Station Units 1, 2, and 3 License Amendment Request to Revise the Technical Specifications 3.5.1 and 3.5.2 Safety Injection Tank Pressure Bands, and to Use GOTHIC Code ML24257A1012024-09-11011 September 2024 Request for Additional Information License Renewal Commitment for AMP of Alloy 600 Components ML24248A2632024-09-0404 September 2024 Acceptance Review of Palo Verde Nuclear Generating Station, Units 1, 2, and 3, Relief Request (RR) No. 71: Re?Submittal of RR?30 ML24242A2812024-08-26026 August 2024 RR72 Acceptance 08/27/24 - La Jr ML24221A2382024-08-0606 August 2024 Change in Estimated Review Schedule and Level of Effort for Palo Verde Units 1, 2, and 3 ML24143A1112024-05-20020 May 2024 Draft 2nd Round Request for RAIs Concerning LAR to Modify LCO for TS 3.5.2, LCO for TS 3.6.5, and Surveillance Requirements 3.5.1.2 and 3.5.2.2 for TS 3.5.1 and TS 3.5.2 ML24138A1112024-05-16016 May 2024 Draft 2nd Round Request for Additional Information (Rais) Concerning License Amendment Request (LAR) to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2 ML24123A2002024-05-0101 May 2024 (E-Mail) Draft 2nd Round Request for Additional Information Concerning License Amendment Request to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2, LCO for TS 3.6.5, 3.5.1.2 and 3.5.2.2 for TS 3.5.1, a ML24120A2612024-05-0101 May 2024 Email Acceptance Review of Requested Licensing Action License Renewal Commitment 23A, Alloy 600 Management Program Plan ML24114A2812024-04-19019 April 2024 Request for Additional Information (RAI-10150-R1) ML24103A1222024-04-11011 April 2024 – Acceptance of Requested Licensing Action Re_ License Amendment Request to Revise Technical Specifications 3 ML24011A1002024-01-10010 January 2024 March 2024 Emergency Preparedness Program Inspection - Request for Information ML23334A1612023-11-30030 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - RAIs Associated with License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23334A0072023-11-29029 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR That Revises TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23243B0082023-08-31031 August 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) ML23233A0132023-08-18018 August 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23220A0512023-08-0303 August 2023 NRR E-mail Capture - Re Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 22 ML23202A0162023-07-20020 July 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Revise TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23143A1332023-05-23023 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR Revising TS 3.3.11 to Adopt TSTF-266-A, Rev. 3, Eliminate the Remote Shutdown System Table of Instrumentation and Controls ML23130A0132023-05-10010 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Authorized Use of Mururoa Supplied Air Suits (Models V4F1 and MTH2) Pursuant to 10 CFR 20.1703 and 10 CFR 20.1705 ML23017A0932023-01-17017 January 2023 NRR E-mail Capture - Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods That Are Untrippable Versus Inoperable (L-2022-LLA-0181) ML23013A0632023-01-13013 January 2023 NRR E-mail Capture - Palo Verde Unit 1 -Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22348A1672022-12-14014 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22339A2372022-12-0505 December 2022 NRR E-mail Capture - Palo Verde Unit 1 Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22173A0682022-06-17017 June 2022 Email Concurrence on SE Input for Columbia Pltr LAR ML22167A1872022-06-16016 June 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Revised Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22136A0922022-05-16016 May 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-487-A, Revision 1, Relocate DNB Parameters to the COLR ML22075A1902022-03-16016 March 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22055A5842022-02-24024 February 2022 NRR E-mail Capture - Palo Verde, Unit 3 - Final RAIs for 22nd Refueling Outage (Spring 2021) Steam Generator Tube Inservice Inspection Report ML22034A0132022-02-0202 February 2022 NRR E-mail Capture - Palo Verde, Unit 2 - Verbal Approval of RR-69 to Extend Containment Tendon Inspection from 2/8/22 to 6/8/22 ML22032A0312022-01-31031 January 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for an Exemption Regarding Elimination of Dafas Using RIPE Process ML22025A4012022-01-0303 January 2022 March 2022 Emergency Preparedness Program Inspection - Request for Information ML21333A1982021-11-19019 November 2021 NRC Review of PVNGS Training Needs Analysis and Training Required by Condition I of the Confirmatory Order EA-20-054 ML21306A1882021-10-18018 October 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Second Pre-submittal Meeting for the Proposed Exemption to Eliminate Dafas Using RIPE Process ML21272A0592021-09-28028 September 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 21 ML21264A1352021-09-17017 September 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21237A0762021-08-25025 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection ML21228A0082021-08-16016 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of an LAR for Administrative Changes to Technical Specifications ML21228A1042021-08-12012 August 2021 RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (EPID L-2021-LLR-0050) (Email) ML21237A5172021-08-10010 August 2021 Email to PV Licensee and Palo Verde Nuclear Generating Station, Units 1, 2 and 3 - Notification of Inspection of the Licensees Implementation Industry Initiative Associated with the Open Phase Condition (NRC Bulletin 2012-01) and Request Fo ML21160A1442021-06-0909 June 2021 NRR E-mail Capture - Palo Verde 1 and, 2 - Acceptance Review for Order Approving Transfers of Control of Licenses for Minority Interests Subject to Expiring Leases ML21154A0082021-05-26026 May 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Official RAIs for LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21146A3342021-05-14014 May 2021 ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21132A2372021-05-12012 May 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3, and ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21103A3632021-04-13013 April 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Indirect Transfer of Control of Licenses Pursuant to 10 CFR 50.80 and 10 CFR 72.50 ML21064A2372021-03-0303 March 2021 ISI Request for Information Rls ML21053A0262021-02-22022 February 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21043A1462021-02-11011 February 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAI for an Order Associated with Indirect License Transfer from Public Service Company of New Mexico to Avangrid, Inc ML21023A0212021-01-13013 January 2021 PVNGS PI&R Request for Information RA 2024-09-04
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24257A1012024-09-11011 September 2024 Request for Additional Information License Renewal Commitment for AMP of Alloy 600 Components ML24143A1112024-05-20020 May 2024 Draft 2nd Round Request for RAIs Concerning LAR to Modify LCO for TS 3.5.2, LCO for TS 3.6.5, and Surveillance Requirements 3.5.1.2 and 3.5.2.2 for TS 3.5.1 and TS 3.5.2 ML24123A2002024-05-0101 May 2024 (E-Mail) Draft 2nd Round Request for Additional Information Concerning License Amendment Request to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2, LCO for TS 3.6.5, 3.5.1.2 and 3.5.2.2 for TS 3.5.1, a ML24114A2812024-04-19019 April 2024 Request for Additional Information (RAI-10150-R1) ML24011A1002024-01-10010 January 2024 March 2024 Emergency Preparedness Program Inspection - Request for Information ML23334A1612023-11-30030 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - RAIs Associated with License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23334A0072023-11-29029 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR That Revises TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23031A3392023-01-31031 January 2023 In-service Inspection Request for Information ML23013A0632023-01-13013 January 2023 NRR E-mail Capture - Palo Verde Unit 1 -Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22348A1672022-12-14014 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22339A2372022-12-0505 December 2022 NRR E-mail Capture - Palo Verde Unit 1 Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22272A3252022-09-29029 September 2022 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML22209A1752022-07-28028 July 2022 Inservice Inspection Request for Information ML22187A2632022-07-0606 July 2022 Notification of Inspection (NRC IR 05000528/2022004, 05000529/2022004 and 05000530/2022004) and Request for Information ML22067A2292022-03-0202 March 2022 Inservice Inspection Inspection PWR Request for Information ML22055A5842022-02-24024 February 2022 NRR E-mail Capture - Palo Verde, Unit 3 - Final RAIs for 22nd Refueling Outage (Spring 2021) Steam Generator Tube Inservice Inspection Report ML22035A3302022-02-10010 February 2022 Requests for Confirmation of Information for Exemption to Delete Diverse Auxiliary Feedwater Actuation System Based on Risk-Informed Process for Evaluations ML22025A4012022-01-0303 January 2022 March 2022 Emergency Preparedness Program Inspection - Request for Information ML21245A2222021-09-0101 September 2021 Request for Information ML21200A2392021-07-20020 July 2021 Docs Request AC - AA August 2021 ML21154A0082021-05-26026 May 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Official RAIs for LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21064A2372021-03-0303 March 2021 ISI Request for Information Rls ML21042B9692021-02-18018 February 2021 Notification of NRC Design Bases Assurance Inspection and Initial Request for Information ML21043A1462021-02-11011 February 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAI for an Order Associated with Indirect License Transfer from Public Service Company of New Mexico to Avangrid, Inc ML21023A0212021-01-13013 January 2021 PVNGS PI&R Request for Information RA ML21011A1972021-01-12012 January 2021 Unit 2, and Unit 3 - Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000528/2021012, 05000529/2021012 and 05000530/2021012) and Request for Information ML20227A0992020-08-14014 August 2020 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML20118D1362020-04-28028 April 2020 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML20049A0992020-02-14014 February 2020 Notification of Cyber Security Inspection (NRC Inspection Report 05000528/2020401; 05000529/2020401; and 05000530/2020401) and Request for Information ML20049A0252020-02-12012 February 2020 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 1 - Official RAIs for License Amendment Request Associated with Changes to Emergency Plan Staffing Requirements ML20021A3172020-01-21021 January 2020 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 1 - Official RAIs for Relief Request 64, Impractical Examinations for the Third 10-Year ISI Interval ML19317D0782019-11-13013 November 2019 NRR E-mail Capture - Palo Verde 1 - Requests for Additional Information on Unit 1 21st Refueling Outage Steam Generator Tube Inspection Report ML19234A3202019-08-29029 August 2019 Redacted - Request for Additional Information for Amendment and Exemption Request to Support the Implementation of Framatome High Thermal Performance Fuel (EPID L-2018-LLA-0194; EPID L-2018-LLE-0010) ML19155A1842019-05-30030 May 2019 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 3 - Mvib Official RAIs for RR-63, Impractical Examinations for the Third 10-Year ISI Interval ML19095A6552019-04-0404 April 2019 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 3 - Mphb Official RAIs for RR-63, Impractical Examinations for the Third 10-Year ISI Interval ML19044A7342019-02-13013 February 2019 NRR E-mail Capture - Palo Verde1, 2, and 3 - Official Requests for Additional Information for RR 62, Third and Fourth 10-Year ISI Intervals, Proposed Alternative - Pressurizer Heat Sleeve Repairs ML19008A3612019-01-0808 January 2019 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR Associated with Response Time Testing of Pressure Transmitters ML18341A0252018-12-0303 December 2018 Notification of NRC Design Bases Assurance Inspection (Teams)(05000528/2019011, 05000529/2019011, and 05000530/2019011) and Initial Request for Information ML18271A0392018-10-0202 October 2018 Non Proprietary - Supplemental Information Needed for Acceptance of Requested License Amendments and Exemptions Implementation of Framatome High Thermal Performance Fuel (Epids L-2018-LLA-0194 and L-2018-LLE-0010) ML18221A5102018-08-23023 August 2018 Request for Additional Information License Amendment Request to Adopt Risk-Informed Completion Times (CAC Nos. MF6576, MF6577, and MF6578; EPID: L-2015-LLA-0001) ML18229A3132018-08-17017 August 2018 NRR E-mail Capture - Request for Additional Information Relief Request 58: Impractical Examinations for the Third 10-Year Inservice Inspection Interval Arizona Public Service Company Palo Verde Nuclear Generation Station, Unit 2 - Second Se ML18227A8672018-08-15015 August 2018 NRR E-mail Capture - Request for Additional Information Relief Request 58: Impractical Examinations for the Third 10-Year Inservice Inspection Interval Arizona Public Service Company Palo Verde Nuclear Generation Station, Unit 2 ML18124A0112018-05-0303 May 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official Eeob RAIs for TSTF-505 (4b) LAR (CAC Nos. MF6576, MF6577, and MF6578; EPID L-2015-LLA-0001) ML18099A0072018-04-0606 April 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for 10 CFR 50.69 LAR (CAC Nos. MF9971, MF9972, and MF9973; EPID L-2017-LLA-0276) ML18094B1122018-04-0404 April 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Final RAIs for TSTF-505 (Initiative 4b) LAR (CAC Nos. MF6576, MF6577, and MF6578: EPID L-2015-LLA-0001) ML18066A7032018-03-0707 March 2018 Notification of Nrc Design Bases Assurance Inspection (Programs) 05000528/2018011, 05000529/2018011, and 05000530/2018011 Initial Request for Information ML17248A0162017-08-31031 August 2017 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Final RAI for RRs PRR-03, PRR-04 and PRR-05, Pump Testing ML17107A0052017-04-14014 April 2017 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Ngf LAR and Exemption RAIs (CAC Nos. MF8076 to MF8081) ML17082A4462017-03-28028 March 2017 PVNGS Units 1, 2, and 3 Transition to CE 16x16 Ngf - Draft RAIs Rev 3 2024-09-11
[Table view] |
Text
NRR-PMDAPEm Resource From: Watford, Margaret Sent: Friday, February 26, 2016 11:19 AM To: Carl Stephenson; Del Elkinton; Matthew Cox; Mike Dilorenzo; Tom Weber Cc: Carte, Norbert; ONeal, Daniel; Miller, Ed
Subject:
Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re:
Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578)
Attachments: Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos.
MF6576, MF6577, AND MF6578).pdf
- Tom, By letter dated July 31, 2015 (Agencywide Documents Access and Management System Accession No. ML15218A300), Arizona Public Service Company submitted a license amendment request (LAR) regarding Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2 and 3. The proposed amendment would revise Technical Specifications (TS) to Implement TS Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times - RITSTF [Risk-informed TSTF] Initiative 4b.
Based on the NRCs staff review of the LAR, the NRC staff has determined that additional information is necessary to support completion of its technical review. Please see the draft request for additional information (RAI) in the attached document.
Thank you, Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A 1
Hearing Identifier: NRR_PMDA Email Number: 2677 Mail Envelope Properties (Margaret.Watford@nrc.gov20160226111800)
Subject:
Palo Verde, Units 1, 2, and 3: DRAFT Request for Additional Information Re:
Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578)
Sent Date: 2/26/2016 11:18:59 AM Received Date: 2/26/2016 11:18:00 AM From: Watford, Margaret Created By: Margaret.Watford@nrc.gov Recipients:
"Carte, Norbert" <Norbert.Carte@nrc.gov>
Tracking Status: None "ONeal, Daniel" <Daniel.ONeal@nrc.gov>
Tracking Status: None "Miller, Ed" <Ed.Miller@nrc.gov>
Tracking Status: None "Carl Stephenson" <carl.stephenson@aps.com>
Tracking Status: None "Del Elkinton" <delbert.elkinton@aps.com>
Tracking Status: None "Matthew Cox" <matthew.cox@aps.com>
Tracking Status: None "Mike Dilorenzo" <michael.dilorenzo@aps.com>
Tracking Status: None "Tom Weber" <thomas.n.weber@aps.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 965 2/26/2016 11:18:00 AM Palo Verde, Units 1, 2, and 3 DRAFT RAI Amendment to Adopt TSTF-505 (CAC Nos. MF6576, MF6577, AND MF6578).pdf 84999 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO ADOPT TSTF-505 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 DOCKET NOS. STN 50-538, STN 50-529, AND STN 50-530 By letter dated July 31, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML15218A300), Arizona Public Service Company (the licensee) submitted a license amendment request (LAR) regarding Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2 and 3. The proposed amendment would revise Technical Specifications (TS) to Implement TS Task Force (TSTF)-505, Revision 1, Provide Risk-Informed Extended Completion Times - RITSTF [Risk-informed TSTF] Initiative 4b.
Based on the NRCs staff review of the LAR, the NRC staff has determined the following additional information is necessary to support completion of its technical review:
EICB-RAI-1 The staff seeks clarification on how probabilistic risk assessment (PRA) Functionality will be determined in the RICT program as implemented. The LAR does not describe conditions where Actuation Logic channels are INOPERABLE but PRA Functional.
(a) Please provide several example conditions that would allow one or more Actuation Logic channels (see TS 3.3.6, Engineered Safety Features Actuation System (ESFAS) Logic and Manual Trip, Action E insert for TS page 3.3.6-2) to be considered both INOPERABLE and PRA Functional.
(b) For each example in part (a), please include an evaluation against the criteria in NEI 06-09, Section 2.3.1, Configuration Risk Management Process & Application of Technical Specifications, Item Nos. 10 and 11.
(c) The staff understands that by meeting the criteria in Items Nos. 10 and 11 in NEI 06-09, Section 2.3.1, all design basis events would be protected against. Please describe any associated design basis events that are NOT protected against in each example condition in part (a).
EICB-RAI-2 , List of Revised Required Actions to Corresponding PRA Functions, to the model application for licensee adoption of TSTF-505 dated January 31, 2012 (ADAMS Accession No. ML12032A065) states:
This enclosure [Enclosure 1] should provide a description of PRA functionality for each associated specified safety function that corresponds to each proposed Required Action that is applicable when all trains of equipment are inoperable as discussed in Section 2.3.1.10 of NEI 06-09. For example, the number and
identity of instrumentation and control channels (or functions) required to be PRA functional is highly dependent on the specific plant and associated equipment design. guidance is included as part of the model application because the NRC staff seeks clarity on how PRA Functional will be used during full power operation following loss of a specified safety function or inoperability of all required trains or divisions of a system.
In the LAR, Attachment 5, List of Revised Required Actions to Corresponding Probabilistic Risk Assessment Functions, the PRA Success Criteria is indicated as being the same as the Design Success Criteria, i.e. the same minimum number of channels actuate for some instrument and controls (I&C) functions. (Regarding: TS 3.3.4, Reactor Protective System (RPS) Logic and Trip Initiation, & TS 3.3.6)
(a) Please confirm that the PRA Success Criteria ensures all associated design basis events are protected against in the condition where two Actuation Logic channels are INOPERABLE and PRA Functional or justify how adequate protection is maintained, if not.
(b) Attachment 5 of the LAR identifies some I&C structure, system, and components that are partially modeled (or not modeled) in the PRA. Item No. 11 in NEI 06-09, Section 2.3.1 includes criteria for determining PRA Functionality of components, and these criteria were developed based on the assumption that the function would be modeled in the PRA.
(i) Please describe how PRA Functionality of these partial models (or un-modeled items) will be determined (i.e., how the criteria of Item No. 11 will be applied).
(ii) Please describe how PRA Functionality of bounding evaluations will be determined (i.e., how the criteria of Item No. 11 will be applied).
EICB-RAI-3 NEI 06-09, Revision 0-A states that a RICT cannot be used in a condition where there is a total loss of TS specified safety function; however, it does not describe how to determine when a total loss of safety function has occurred.
(a) For two Actuation Logic channels inoperable, please describe the process of how it will be determined if there is a total loss of TS specified safety function.
Note: Title 10 of the Code of Federal Regulations (10 CFR) 50.72 and 50.73 require the reporting of the plant being in a degraded or unanalyzed condition (see NUREG-1022, Revision 3, Section 3.2.4, Degraded or Unanalyzed Condition), and conditions that could prevent the fulfillment of the safety function of systems (see NUREG-1022 Revision 3, Section 3.2.7, Event or Condition that Could Have Prevented Fulfillment of Safety Function). In the LAR, TS 5.5.20, Risk Informed Completion Time Program, states:
Use of a RICT is permitted for emergent conditions which represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more of the trains are considered "PRA functional" as defined in Section 2.3.1 of the NEI 06-09 Revision 0 - A.