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Category:Letter
MONTHYEARPNP 2024-014, Request for USNRC to Rescind Approved Exemption Requests for 140.11(a)(4) and 50.54(w)(1), Reduction of Insurances2024-10-0909 October 2024 Request for USNRC to Rescind Approved Exemption Requests for 140.11(a)(4) and 50.54(w)(1), Reduction of Insurances PNP 2024-037, Response to Requests for Additional Information Regarding the Proposed Reauthorization of Power Operations Under Renewed Facility Operating License Number DPR-0202024-10-0404 October 2024 Response to Requests for Additional Information Regarding the Proposed Reauthorization of Power Operations Under Renewed Facility Operating License Number DPR-020 ML24267A2962024-10-0101 October 2024 Summary of Conference Call Regarding Steam Generator Tube Inspections ML24263A1712024-09-20020 September 2024 Environmental Request for Additional Information ML24240A1692024-09-18018 September 2024 Cy 2023 Summary of Decommissioning Trust Fund Status ML24219A4202024-09-12012 September 2024 Change in Estimated Hours and Review Schedule for Licensing Actions Submitted to Support Resumption of Power Operations (Epids L-2023-LLE-0025, L-2023-LLM-0005, L-2023-LLA-0174, L-2024-LLA-0013, L-2024-LLA-0060, L-2024-LLA-0071) IR 05000255/20244022024-09-0606 September 2024 Public: Palisades Nuclear Plant - Decommissioning Security Inspection Report 05000255/2024402 PNP 2024-029, Notice of Payroll Transition at Palisades Nuclear Plant2024-08-15015 August 2024 Notice of Payroll Transition at Palisades Nuclear Plant IR 05000255/20240022024-08-0909 August 2024 NRC Inspection Report No. 05000255/2024002 PNP 2024-030, Update Report for Holtec Decommissioning International Fleet Decommissioning Quality Assurance Program Rev. 3 and Palisades Transitioning Quality Assurance Plan, Rev 02024-08-0202 August 2024 Update Report for Holtec Decommissioning International Fleet Decommissioning Quality Assurance Program Rev. 3 and Palisades Transitioning Quality Assurance Plan, Rev 0 PNP 2024-032, Supplement to License Amendment Request to Revise Selected Permanently Defueled Technical Specifications Administrative Controls to Support Resumption of Power Operations2024-07-31031 July 2024 Supplement to License Amendment Request to Revise Selected Permanently Defueled Technical Specifications Administrative Controls to Support Resumption of Power Operations ML24206A0572024-07-25025 July 2024 PRM-50-125 - Letter to Alan Blind; Docketing of Petition for Rulemaking and Sufficiency Review Status (10 CFR Part 50) PNP 2024-033, Response to Request for Additional Information - License Amendment Request to Revise the Palisades Nuclear Plant Site Emergency Plan to Support Resumption of Power Operations2024-07-24024 July 2024 Response to Request for Additional Information - License Amendment Request to Revise the Palisades Nuclear Plant Site Emergency Plan to Support Resumption of Power Operations PNP 2024-031, Response to RIS 2024-01, Preparation and Scheduling of Operator Licensing Examinations2024-07-18018 July 2024 Response to RIS 2024-01, Preparation and Scheduling of Operator Licensing Examinations IR 05000255/20240112024-07-15015 July 2024 Nuclear Plant - Restart Inspection Report 05000255/2024011 PNP 2024-027, Supplement to License Amendment Request to Revise Renewed Facility Operating License and Permanently Defueled Technical Specifications to Support Resumption of Power Operations2024-07-0909 July 2024 Supplement to License Amendment Request to Revise Renewed Facility Operating License and Permanently Defueled Technical Specifications to Support Resumption of Power Operations ML24183A1382024-07-0202 July 2024 Tribal Letter - Lac Du Flambeau Band of Lake Superior Chippewa Indians ML24137A0142024-07-0202 July 2024 OEDO-24-00011 - 2.206 Petition for Misuse of Palisades Decommissioning Trust Fund (EPID L-2023-CRS-0008) - Letter ML24183A1492024-07-0101 July 2024 Tribal Letter - Pokagon Band of Potawatomi Indians ML24156A0222024-07-0101 July 2024 Initiation of Scoping Process to Prepare an Environmental Assessment for the Environmental Review of Holtec Decommissioning International, Llc’S Licensing and Regulatory Requests for Reauthorization of Power Operations at Palisades EPID L-2 ML24183A1552024-07-0101 July 2024 Tribal Letter - Red Lake Band of Chippewa Indians ML24183A1542024-07-0101 July 2024 Tribal Letter Red Cliff Band of Lake Superior Chippewa Indians ML24172A0032024-07-0101 July 2024 Letter to L. Powers, Mackinac Bands of Chippewa and Ottawa Indians Re Initiation of Scoping Process for Environ Review Holtec Decommissioning Intl, LLC Request for Reauthorization of Power Ops-Palisades ML24183A1332024-07-0101 July 2024 Tribal Letter-Forest County Potawatomi Community ML24183A1582024-07-0101 July 2024 Tribal Letter Sault Ste. Marie Tribe of Chippewa Indians ML24183A1302024-07-0101 July 2024 Tribal Letter-Chippewa Cree Indians of the Rocky Boys Reservation ML24183A1282024-07-0101 July 2024 Tribal letter-Bay Mills Indian Community ML24183A1532024-07-0101 July 2024 Tribal Letter Quechan Tribe of the Fort Yuma Indian Reservation ML24183A1572024-07-0101 July 2024 Tribal Letter - Saint Croix Chippewa Indians of Wisconsin ML24183A1462024-07-0101 July 2024 Tribal letter-Mille Lacs Band of Ojibwe ML24183A1422024-07-0101 July 2024 Tribal Letter-Little Traverse Bay Bands of Odawa Indians ML24183A1312024-07-0101 July 2024 Tribal Letter-Citizen Potawatomi Nation ML24163A0552024-07-0101 July 2024 Rebecca Held Knoche NOAA-Palisades-NOI to Conduct Scoping Process and Prepare an EA - EPID No. L-2024-LNE-0003-Docket No. 50-0255 ML24163A2392024-07-0101 July 2024 Sara Thompson, Michigan DNR-Palisades-NOI to Conduct Scoping Process and Prepare an EPID No. L-2024-LNE-0003-Docket No. 50-0255 ML24155A0102024-07-0101 July 2024 Quentin L. Messer Jr., Michigan Econ-Palisades-NOI to Conduct Scoping Process and Prep an EA-EPID No. L-2024-LNE-0003 Docket No.50-0255P ML24155A0032024-07-0101 July 2024 Kathy Kowal, Us EPA Region 5-Palisades-NOI to Cibdyct Scoping Process and Prepare an EA EPID L-2024-LNE-0003 ML24163A0832024-07-0101 July 2024 Ltr to R Schumaker SHPO Re Initiation of Scoping Process, Section 106 Consult for Env Rev of HDI, LLC Request for Reauth of Power Operations at Palisades Nuclear Plant ML24183A1342024-07-0101 July 2024 Tribal Letter-Grand Portage Band of Lake Superior Chippewa ML24183A1392024-07-0101 July 2024 Tribal Letter-Lac Vieux Desert Band of Lake Superior Chippewa Indians ML24183A1272024-07-0101 July 2024 Tribal Letter-Bad River Band of the Lake Superior Tribe of Chippewa ML24183A1412024-07-0101 July 2024 Tribal Letter-Little River Band of Ottawa Indians ML24163A1922024-07-0101 July 2024 Jeremy Rubio, Dept of Env, Great Lakes and Energy, Kalamazoo District-Palisades-NOI to Conduct Scoping Process and Prepare an EA EPID No. L-2024-LNE-0003 Docket No.50-0255 ML24183A1322024-07-0101 July 2024 Tribal Letter-Fond Du Lac Band of Lake Superior Chippewa ML24183A1592024-07-0101 July 2024 Tribal letter-Sokaogon Chippewa Community ML24163A0822024-07-0101 July 2024 Ltr to J Loichinger Achp Re Initiation of Scoping Process, Section 106 Consult for Env Rev of HDI, LLC Request for Reauth of Power Operations at Palisades Nuclear Plant ML24183A1252024-07-0101 July 2024 Letter to G. Gould, Swan Creek Black River Confederated Ojibwa-Init of Scoping Process for the Env Rev of Holtec Decommissioning Intl, LLC Request for Reauth of Power Ops at Palisades ML24183A1352024-07-0101 July 2024 Tribal Letter-Hannahville Indian Community ML24183A1442024-07-0101 July 2024 Tribal Letter - Menominee Indian Tribe of Wisconsin ML24183A1502024-07-0101 July 2024 Tribal Letter - Prarie Band Potawatomi Nation ML24183A1452024-07-0101 July 2024 Tribal Letter - Miami Tribe of Oklahoma 2024-09-06
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Text
Entergy Nuclear Operations, Inc.
Palisades Nuclear Plant
'27780 Blue Star Memorial Highway Covert, Ml 49043 Tel 269 764 2000 Thomas P. Kirwin Acting Site Vice President December 20, 2010 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
SUBJECT:
Updated Palisades Reactor Vessel Pressurized Thermal Shock Evaluation Palisades Nuclear Plant Docket 50-255 License No. DPR-20
References:
- 1. Palisades Nuclear Plant, Application for Renewed Operating License, dated March 22, 2005 (Accession No. ML050940429).
- 2. Consumers Energy letter to the NRC, "Palisades Reactor Vessel Neutron Fluence Reevaluation," dated February 21, 2000, (Accession No. ML003686516).
Dear Sir or Madam:
The Palisades Nuclear Plant (PNP) license renewal application (Reference 1) stated that the RTPTS value for the PNP limiting reactor vessel (RV) welds is projected to reach the 10 CFR 50.61 pressurized thermal shock (PTS) screening criterion limit prior to the end of the license renewal period. That projection was based on a previous analysis (Reference 2) that determined the RTPTS values for the PNP vessel beltline materials using RV fluence and materials information available at that time. The limiting welds, which are the beltline axial welds fabricated with weld wire heat no. W5214, were projected to reach the PTS screening criterion limit in 2014.
New information is available that will affect the date when the PTS screening criterion limit is reached and, per the requirements in 10CFR50.61, the information must be reported if it improves the accuracy of the RTPTS value. The vessel fluence and RTPTS values have been reevaluated to ensure that vessel embrittlement is being managed and
,reported as required. This letter provides the new information and specifies future actions for compliance with the NRC regulations regarding PTS. This issue is being addressed under 10 CFR 54.21(c)(1)(iii), which requires that the effects of aging be managed for the period of extended operation.
Document Control Desk Page 2 Subsequent to the license renewal application, the NRC published 10 CFR 50.61a, "Alternate Fracture Toughness Requirements for Protection Against Pressurized Thermal Shock Events." This new alternative for PTS management "
involves inspecting the RV beltline region, determining limiting RTMAx-x values for each axial and circumferential weld, plate, and forging, and submitting a report to NRC to justify continued operation using the PTS screening criteria in Table 1 of 10 CFR 50.61a. The new regulation requires that an application for implementation of 10 CFR 50.61a be submitted at least three years before the limiting RTPTS value calculated under 10 CFR 50.61 is projected to exceed the PTS screening criteria.
Entergy Nuclear Operations, Inc. (ENO) will inspect the RV beltline region during the 2012 refueling outage. Afterward, ENO Will calculate RTMAX-X values for each RV beltline material and to submit a report to NRC to justify continued operation using the alternative PTS screening criteria in Table 1 of 10 CFR 50.61a. Submittal of an application for implementation of 10 CFR 50.61a will occur no less than three years before the limiting axial welds fabricated with weld wire heat no. W5214 are projected to reach the 10 CFR 50.61 PTS screening criterion limit.
On June 22, 2010, ENO staff met with the NRC to share the preliminary results of an updated PTS evaluation for the limiting axial welds fabricated with weld wire heat no. W5214. This updated PTS evaluation credits new surveillance capsule data and concludes that the axial welds fabricated with weld wire heat no. W5214 will not reach the PTS screening criteria limit until April.2017.
During the meeting, ENO agreed to submit updated PTS evaluations for the RV beltline materials in order to document compliance with 10 CFR 50.61 requirements in the interim until the 10 CFR 50.61a RV inspection is completed, the RTMAx-x values for each RV beltline materials are determined, and the ENO application to implement 10 CFR 50.61a is reviewed and approved by the NRC.
Accordingly, Attachment 1 and Attachment 2 of this letter transmit the following updated PTS evaluations for the PNP RV beltline materials:
- 1. Structural Integrity Associates, Inc. (SIA) Report No. 0901132.401, "Evaluation of Surveillance Data for Weld Heat No. W5214 for Application to Palisades PTS Analysis"
- 2. SIA Report No. 1000915.401, "Revised Pressurized Thermal Shock Evaluation for the Palisades Reactor Pressure Vessel" These two updated PTS evaluations have been reviewed by Westinghouse Electric Company, Nuclear Services.
Document Control Desk Page 3 The updated PTS evaluations are supported by Attachment 3, WCAP-15353-NP, Revision 0, Supplement 1, entitled "Palisades Reactor Pressure Vessel. Fluence Evaluation."
The updated PTS evaluations for the reactor beltline materials conclude that the 10 CFR 50.61 PTS screening criteria will not be reached until. April 2017. to this letter provides background information, a description of the proposed changes, and an evaluation discussion.
The attachments contain no proprietary information.
ENO requests that the NRC complete review and approval of the revised PTS evaluations and endorse the-new date at which the RV is estimated to reach the PTS screening criteria.
ENO plans to use the chemistry factors in the PTS evaluations for generation.of revised primary coolant system pressure-temperature curves under 10 CFR 50 Appendix G, and. plans to submit revised pressure-temperature curves to the NRC in early 2011.
Summary of Commitments This letter identifies two (2) new commitments and no revisions to existing.
commitments.' Refer to Attachment 5.
I declare under penalty of perjury that the foregoing is true and correct. Executed.on December 20, 2010.
Sincerely, tpk/jse
Document Control Desk Page 4 Attachments: 1. Structural Integrity Associates, Inc. Report No. 0901132.401, Evaluation of Surveillance Data for Weld Heat No. W5214 for Application to Palisades PTS Analysis
- 2. Structural Integrity Associates, Inc. Report No. 1000915.401, Revised Pressurized Thermal Shock Evaluation for the Palisades Reactor Pressure Vessel
- 3. WCAP-15353-NP, Revision 0, Supplement 1, Palisades Reactor Pressure Vessel Fluence Evaluation
- 4. Background Information, Description of Proposed Changes, and Evaluation Discussion
- 5. Description of Commitments cc: Administrator, Region III, USNRC Project Manager, Palisades, USNRC Resident Inspector, Palisades, USNRC