Letter Sequence Other |
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MONTHYEARML1030101722010-10-20020 October 2010
Supplementary Information Concerning Request for Amendment to Technical Specification 3.7.4, Atmospheric Dump Valves (Advs).
Project stage: Request
ML11182A9082011-06-22022 June 2011
Request for Amendment to Technical Specification 3.7.4, Atmospheric Dump Valves (Advs).
Project stage: Request
ML1124201552011-08-26026 August 2011
Draft Request for Additional Information License Amendment Request to Revise Technical Specification Limiting Condition for Operation 3.7.4 Atmospheric Dump Valves
Project stage: Draft RAI
ML1124201472011-08-26026 August 2011
Email, Draft Request for Additional Information License Amendment Request to Revise Technical Specification Limiting Condition for Operation 3.7.4 Atmospheric Dump Valves
Project stage: Draft RAI
ML1124300842011-08-31031 August 2011
Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.7.4,Atmospheric Dump Valves
Project stage: RAI
ML11356A0882011-12-0909 December 2011
Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.7.4, Atmospheric Dump Valves.
Project stage: Response to RAI
ML12046A6492012-01-27027 January 2012
Responses to Requests 2 and 3 of the Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.7.4, Atmospheric Dump Valves
Project stage: Request
ML12261A1372012-09-17017 September 2012
Email, Audit Plan Related to License Amendment Request to Revise Technical Specification 3.7.4, Atmospheric Dump Valves (Advs)
Project stage: Other
ML12339A0692012-12-0303 December 2012
Draft Request for Additional Information Email, Round 2, License Amendment Request to Revise Technical Specification 3.7.4, Atmospheric Dump Valves (Advs)
Project stage: Draft RAI
ML12342A3832012-12-13013 December 2012
Regulatory Audit Summary and Request for Additional Information, Round 2, License Amendment Request to Revise Technical Specification 3.7.4, Atmospheric Dump Valves (Advs)
Project stage: RAI
ML13037A3842013-01-30030 January 2013
Response to Request for Additional Information Regarding License Amendment Request (LAR) to Revise Technical Specification 3.7.4, Atmospheric Dump Valves (Advs)
Project stage: Response to RAI
ML13080A3312013-04-11011 April 2013
Issuance of Amendment Nos. 191, 191, and 191, Revise Technical Specification 3.7.4, Atmospheric Dump Valves (Advs)
Project stage: Approval
2012-01-27
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Category:E-Mail
MONTHYEARML24011A1002024-01-10010 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
ML20366A1682020-12-31031 December 2020
NRR E-mail Capture - Palo Verde 1, 2, and 3, and ISFSI - Acceptance Review of an Order Associated with Indirect Transfers of Control of Licenses
ML21005A2712020-12-29029 December 2020
102-08208 PVNGS Communication Required by Confirmatory Order EA-20-054
ML20325A0392020-11-19019 November 2020
NRR E-mail Capture - Palo Verde 2 - Verbal Authorization of RR 66 to Extend Containment Tendon Inspection by One Year Based on 10 CFR 50.55a(Z)(2)
ML20316A0162020-11-0909 November 2020
NRR E-mail Capture - Palo Verde 2 - Acceptance Review of RR 66, Request Containment Post-Tensioning System Inspection One-Time by One Year Due to COVID-19 Pandemic
ML20295A4912020-10-21021 October 2020
NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR Associated with Adopting TSTF-501, Relocate Stored Fuel Oil and Lube Oil Volumes to Licensee Control
ML20265A0982020-09-21021 September 2020
NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Amendment Associated with Making Necessary Administrative Changes to Technical Specifications
ML20108E9462020-04-16016 April 2020
NRR E-mail Capture - (External_Sender) Clarification to PVNGS Part 26 Exemption Request (ML20105A481)
ML20091K0752020-03-31031 March 2020
NRR E-mail Capture - Palo Verde 2 - Acceptance Review of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay Examination
ML20091M1992020-03-31031 March 2020
NRR E-mail Capture - Palo Verde 2 - Verbal Authorization of RR 65, Request for Relief from RPV Bottom Mounted Instrumentation Nozzles and a Pressurizer Surge Line Weld Overlay ISI Examinations
ML20050C9742020-02-19019 February 2020
NRR E-mail Capture - Palo Verde 1,2, and 3 - Framatome Htp Fuel LAR and Exemption Third Audit Summary (EPIDs L-2018-LLA-0194 and L-2018-LLE-0010)
2024-01-10
[Table view] |
Text
From: Gibson, Lauren To: Robert.Roehler@aps.com
Subject:
PALO VERDE NUCLEAR GENERATING STATION - REQUEST TO REVISE TECHNICAL SPECIFICATIONS RELATED TO ATMOSPHERIC DUMP VALVES - AUDIT PLAN (TAC NOS. ME6566, ME6567, AND ME6568)
Date: Monday, September 17, 2012 10:11:00 AM Attachments: Audit Plan ME6566, 7, 8.pdf
- Robert, By letter dated June 22, 2011, Arizona Public Service Company, the licensee for the Palo Verde Nuclear Generating Station, submitted a request to revise Technical Specification Limiting Condition for Operation 3.7.4, Atmospheric Dump Valves (ADVs) (Agencywide Document Access and Management System Accession No. ML11182A908).
The Reactor Systems Branch staff has determined that an audit is necessary to complete the technical review of the proposed amendment.
The audit plan is enclosed.
Please contact me if you have any questions.
Thank you, Lauren Lauren K. Gibson Project Manager Columbia Generating Station Palo Verde Nuclear Generating Station NRR/DORL/LPL4 (301) 415-1056 O8-C8
PALO VERDE NUCLEAR GENERATING STATION REQUEST TO REVISE TECHNICAL SPECIFICATIONS FOR ATMOSPHERIC DUMP VALVES NUCLEAR REGULATORY COMMISSION CLOSEOUT-SITE AUDIT Background and Regulatory Basis By letter dated June 22, 2011, Arizona Public Service Company (APS), the licensee for the Palo Verde Nuclear Generating Station (PVNGS), submitted a request to revise Technical Specification (TS) Limiting Condition for Operation (LCO) 3.7.4, Atmospheric Dump Valves (ADVs) (Agencywide Document Access and Management System (ADAMS) Accession No. ML11182A908). The letter was supplemented by letters dated December 9, 2011 (ADAMS Accession No. ML11356A088), and January 27, 2012 (ADAMS Accession No. ML12046A649).
The requirement for LCOs in 10 CFR 50.36(c)(2) states as follows:
Limiting conditions for operation are the lowest functional capability or performance levels of equipment required for safe operation of the facility. When a limiting condition for operation of a nuclear reactor is not met, the licensee shall shut down the reactor or follow any remedial action permitted by the technical specifications until the condition can be met.
When 10 CFR 50.36 was revised in 1968, and published in Volume 33 of the Federal Register, the Commission stated that the analysis and evaluation of the facility required under §50.34 must provide (1) the necessary information from which technical specifications will be selected, and (2) the detailed bases for the specifications derived (33 FR 18610). The requirements in 10 CFR 50.36 implement Section 182a. of the Atomic Energy Act, which states, in part:
In connection with applications for licenses to operate production or utilization facilities, the applicant shall state such technical specifications in order to enable [the Commission] to find that the utilization or production of special nuclear material will provide adequate protection to the health and safety of the public.
The NRC staff has requested additional information from the licensee to clarify the bases, from which the proposed limiting condition for operation, and associated remedial actions, were derived. The NRC staff requested the information to determine whether the proposed revision to the specification will provide adequate protection to the health and safety of the public.
The ADVs are required, in part, to mitigate the consequences of a postulated steam generator tube rupture event. Review guidance for postulated steam generator tube rupture events is provided in NUREG-0800, Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants, (SRP) Chapter 15.6.3, Radiological Consequences of Steam Generator Tube Failure. The radiological acceptance criteria are based on 10 CFR 100, Reactor Site Criteria, requirements. In particular, the staff reviews the post-accident thermal hydraulic profiles (SRP 15.6.3, Review Procedure 3), and the determination of the coolant flow through the failed tube (SRP 15.6.3, Review Procedure 9).
ENCLOSURE
Audit Approach In its December 9, 2011, response to NRC staff request for additional information (RAI) 1, the licensee provided additional information justifying the proposed conditions, required actions, and completion times associated with a failure to meet the proposed LCO. The January 27, 2012, response to NRC staff RAIs 2 and 3 provided a summary of the results of an analysis of a steam generator tube rupture from the degraded condition permitted by proposed LCO 3.7.4, Condition B, which would allow for inoperability of all ADVs. The purpose of this audit is to perform a detailed review of the analysis, and to compare its assumptions and modeling techniques to existing analyses of record, as well as to plant simulator exercises of tube rupture mitigation. The following activities are anticipated during the audit:
- Detailed review of current and existing steam generator tube rupture analyses
- Walk-down of key ADV system components, including valve, manual operators, and controls
- Observation of simulator mitigation of steam generator tube rupture scenarios Logistical Information This site visit is expected to last approximately 3 days. The tentative schedule is as follows:
- Day 1 - Review and familiarize with calculations
- Day 2 - Continue calculation review and perform equipment walk down
- Day 3 - Simulator observation and discuss any open items and summarize additional information that will be required to complete review The audit is proposed to take place November 27-29, 2012. NRC participants will include:
Benjamin Parks, NRR/DSS/SRXB Christopher Jackson, Chief, NRR/DSS/SRXB (tentative)
Joshua Miller, NRR/DSS/SRXB (tentative)
Stanley Gardocki, NRR/DSS/SBPB Lauren Gibson, NRR/DORL/LPL4 Audit Deliverable Material determined relevant to the NRC staffs decision making will be identified during the audit, and the NRC staff will request that the licensee submit this material formally.
