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| | number = ML14134A322 | | | number = ML14134A322 |
| | issue date = 05/22/2014 | | | issue date = 05/22/2014 |
| | title = Three Mile Island Nuclear Station, Unit 1 - Request for Additional Information Regarding Review of Three Mile Island Nuclear Station Unit 1 Cycle 20 Core Operating Limits Report (TAC No. MF3332) | | | title = Request for Additional Information Regarding Review of Three Mile Island Nuclear Station Unit 1 Cycle 20 Core Operating Limits Report |
| | author name = Whited J A | | | author name = Whited J |
| | author affiliation = NRC/NRR/DORL/LPLI-2 | | | author affiliation = NRC/NRR/DORL/LPLI-2 |
| | addressee name = Pacilio M J | | | addressee name = Pacilio M |
| | addressee affiliation = Exelon Nuclear | | | addressee affiliation = Exelon Nuclear |
| | docket = 05000289 | | | docket = 05000289 |
| | license number = DPR-050 | | | license number = DPR-050 |
| | contact person = Whited J A, NRR/DORL/LPLI-2 | | | contact person = Whited J, NRR/DORL/LPLI-2 |
| | case reference number = TAC MF3332 | | | case reference number = TAC MF3332 |
| | document type = Letter, Request for Additional Information (RAI) | | | document type = Letter, Request for Additional Information (RAI) |
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| =Text= | | =Text= |
| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 May 22, 2014 | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 22, 2014 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| THREE MILE ISLAND NUCLEAR STATION, UNIT 1-REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAG NO. MF3332) | | THREE MILE ISLAND NUCLEAR STATION, UNIT 1- REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAG NO. MF3332) |
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| ==Dear Mr. Pacilio:== | | ==Dear Mr. Pacilio:== |
| By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions. The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014. If you have any questions regarding this matter, please contact me at 301-415-4090. Docket No. 50-289 | | |
| | By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions. |
| | The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014. |
| | If you have any questions regarding this matter, please contact me at 301-415-4090. |
| | Sincerely, Je~1:~ger Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289 |
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| ==Enclosure:== | | ==Enclosure:== |
| Request for Additional Information cc: Distribution via Listserv Sincerely, Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO THE REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT THREE MILE ISLAND NUCLEAR STATION. UNIT 1 DOCKET NO. 50-289 By letter dated November 8, 2013,1 Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 (TMI C20) Core Operating Limits Report (COLR). To complete its review of the TMI C20 COLR, the Nuclear Regulatory Commission (NRC or Commission) requests a response to the questions below. Generic Letter (GL) 88-16, "Removal of Cycle-Specific Parameter Limits from Technical Specifications," provides guidance for the preparation of a license amendment request to modify Technical Specifications (TSs) that have cycle-specific parameter limits. An acceptable alternative to specifying the values of cycle-specific parameter limits in the TSs consists of: (1) the addition of the definition of a named formal report that includes the values of specific parameter limit that have been established using an NRC-approved methodology and consistent with all applicable limits of the safety analysis; (2) the addition of an administrative reporting requirement to submit the formal report on cycle-specific parameter limits to the Commission for information; and (3) the modification of individual TSs to note that cycle-specific parameters shall be maintained within the limits provided in the defined formal report. GL 88-16 further clarifies that in COLR TS [6.x.x] core operating limits shall be established and documented in the COLR before each reload cycle or any remaining part of a reload cycle. The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC staff. Based on the GL 88-16 guidance, TMI C20 TS 6.9.5.2 lists all approved methodologies to support the cycle-specific core operating parameters specified in TS 6.9.5.1. Therefore, both TS 6.9.5.1 and 6.9.5.2 in the TMI COLR TSs are associated with the acceptable alternative stated in item (1) above. The current TMI C20 COLR is associated with the acceptable alternative stated in item (2) above. While TS 6.9.5.2 lists six NRC approved methodology references, TMI C20 COLR lists 3 references in "REFERENCES." The staff found that: (1) there are no cycle-specific core operating limits listed in TS 6.9.5.1; (2) there is no clear identification for cycle-specific core operating limits in the TMI C20 COLR, but only mentioned in the ABSTRACT; and (3) there are no clear cycle-specific operating limits in the TMI C20 COLR. RAI-1: Please identify plant and cycle-specific parameters forTS 6.9.5.1 and show those core operating limits in the TMI C20 COLR. 1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML 13317 A073. Enclosure RAI-2: Please justify that the use of any methodologies referenced in REFERENCES of the TMI C20 COLR to support the cycle-specific core operating limits (to be provided in RAI-1) is consistent with TS 6.9.5.2. RAI-3: Please organize the TMI C20 COLR in accordance toTS 6.9.5.3 to include the proper TSs for cycle-specific core operating limits, the detailed limits, and their supporting methodologies listed in TS 6.9.5.2. | | |
| Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 May 22, 2014 | | Request for Additional Information cc: Distribution via Listserv |
| | |
| | REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO THE REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT THREE MILE ISLAND NUCLEAR STATION. UNIT 1 DOCKET NO. 50-289 By letter dated November 8, 2013, 1 Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 (TMI C20) Core Operating Limits Report (COLR). To complete its review of the TMI C20 COLR, the Nuclear Regulatory Commission (NRC or Commission) requests a response to the questions below. |
| | Generic Letter (GL) 88-16, "Removal of Cycle-Specific Parameter Limits from Technical Specifications," provides guidance for the preparation of a license amendment request to modify Technical Specifications (TSs) that have cycle-specific parameter limits. An acceptable alternative to specifying the values of cycle-specific parameter limits in the TSs consists of: |
| | (1) the addition of the definition of a named formal report that includes the values of cycle-specific parameter limit that have been established using an NRC-approved methodology and consistent with all applicable limits of the safety analysis; (2) the addition of an administrative reporting requirement to submit the formal report on cycle-specific parameter limits to the Commission for information; and (3) the modification of individual TSs to note that cycle-specific parameters shall be maintained within the limits provided in the defined formal report. GL 88-16 further clarifies that in COLR TS [6.x.x] core operating limits shall be established and documented in the COLR before each reload cycle or any remaining part of a reload cycle. The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC staff. |
| | Based on the GL 88-16 guidance, TMI C20 TS 6.9.5.2 lists all approved methodologies to support the cycle-specific core operating parameters specified in TS 6.9.5.1. Therefore, both TS 6.9.5.1 and 6.9.5.2 in the TMI COLR TSs are associated with the acceptable alternative stated in item (1) above. The current TMI C20 COLR is associated with the acceptable alternative stated in item (2) above. While TS 6.9.5.2 lists six NRC approved methodology references, TMI C20 COLR lists 3 references in "REFERENCES." The staff found that: |
| | (1) there are no cycle-specific core operating limits listed in TS 6.9.5.1; (2) there is no clear identification for cycle-specific core operating limits in the TMI C20 COLR, but only mentioned in the ABSTRACT; and (3) there are no clear cycle-specific operating limits in the TMI C20 COLR. |
| | RAI-1: Please identify plant and cycle-specific parameters forTS 6.9.5.1 and show those core operating limits in the TMI C20 COLR. |
| | 1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13317A073. |
| | Enclosure |
| | |
| | RAI-2: Please justify that the use of any methodologies referenced in REFERENCES of the TMI C20 COLR to support the cycle-specific core operating limits (to be provided in RAI-1) is consistent with TS 6.9.5.2. |
| | RAI-3: Please organize the TMI C20 COLR in accordance toTS 6.9.5.3 to include the proper TSs for cycle-specific core operating limits, the detailed limits, and their supporting methodologies listed in TS 6.9.5.2. |
| | |
| | May 22, 2014 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| THREE MILE ISLAND NUCLEAR STATION, UNIT 1 -REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAC NO. MF3332) | | THREE MILE ISLAND NUCLEAR STATION, UNIT 1 -REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAC NO. MF3332) |
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| |
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| ==Dear Mr. Pacilio:== | | ==Dear Mr. Pacilio:== |
| By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions. The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014. If you have any questions regarding this matter, please contact me at 301-415-4090. Docket No. 50-289 | | |
| | By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions. |
| | The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014. |
| | If you have any questions regarding this matter, please contact me at 301-415-4090. |
| | Sincerely, IRA/ |
| | Jeffrey A. Whited, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289 |
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| ==Enclosure:== | | ==Enclosure:== |
| Request for Additional Information cc: Distribution via Listserv DISTRIBUTION: PUBLIC Sincerely, IRA/ Jeffrey A. Whited, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation RidsNrrPMThreeMilelsland Resource LPLI-2 R/F RidsAcrsAcnw_MaiiCTR Resource RidsNrrLAABaxter Resource RidsRgn1 MaiiCenter Resource RidsNrrDoriDpr Resource THuang, NRR RidsNrrDssSrxb Resource RidsNrrDorllpl1-2 Resouce ADAMS Accession Number* ML 14134A322 *via e-mail **via memo OFFICE LPL 1-2/PM LPL 1-2/LA SRXB/BC LPLI-2/BC LPL 1-2/PM NAME JWhited ABaxter* CJackson** MKhanna JWhited (REnnis for} DATE 05/22/2014 05/14/2014 05/14/2014 05/22/2014 05/22/2014 OFFICIAL RECORD COPY}} | | |
| | Request for Additional Information cc: Distribution via Listserv DISTRIBUTION: |
| | PUBLIC RidsNrrPMThreeMilelsland Resource LPLI-2 R/F RidsAcrsAcnw_MaiiCTR Resource RidsNrrLAABaxter Resource RidsNrrDssSrxb Resource RidsRgn1 MaiiCenter Resource RidsNrrDoriDpr Resource RidsNrrDorllpl1-2 Resouce THuang, NRR ADAMS Accession Number* ML14134A322 *via e-mail **via memo OFFICE LPL 1-2/PM LPL 1-2/LA SRXB/BC LPLI-2/BC LPL 1-2/PM MKhanna NAME JWhited ABaxter* CJackson** JWhited (REnnis for} |
| | DATE 05/22/2014 05/14/2014 05/14/2014 05/22/2014 05/22/2014 OFFICIAL RECORD COPY}} |
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Category:Letter
MONTHYEARIR 07200077/20240012024-06-18018 June 2024
Constellation Energy Generation, LLC, Three Mile Island Nuclear Station, Unit 1 - NRC Inspection Report No. 07200077/2024001
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Updated Post-Shutdown Decommissioning Activities Report Request for Additional Information Transmittal Letter
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ML24151A6482024-06-0303 June 2024
Changes in Reactor Decommissioning Branch Project Management Assignments for Some Decommissioning Facilities
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TMI-2 Email to Fws
RS-24-055, 2023 Corporate Regulatory Commitment Change Summary Report2024-05-17017 May 2024
2023 Corporate Regulatory Commitment Change Summary Report
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Annual Radiological Environmental Operating Report
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and Three Mile Island, Unit 2 - 2023 Occupational Radiation Exposure Annual Report
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(TMI-2), Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
RS-24-002, Constellation Energy Generation, LLC - Annual Property Insurance Status Report2024-04-0101 April 2024
Constellation Energy Generation, LLC - Annual Property Insurance Status Report
ML24065A0042024-03-28028 March 2024
Submittal of 2023 Aircraft Movement Data Annual Report
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(TMI-2), Decommissioning Trust Fund Annual Report
ML24088A0122024-03-28028 March 2024
Notification of Amended Post-Shutdown Decommissioning Activities Report (PSDAR) in Accordance with 10 CFR 50.82(a)(7), Revision 6
ML24085A2152024-03-25025 March 2024
(TMI-2) - Annual Notification of Property Insurance Coverage
RS-24-023, Report on Status of Decommissioning Funding.2024-03-22022 March 2024
Report on Status of Decommissioning Funding.
ML24052A0602024-03-20020 March 2024
– Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0061 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting))
ML24074A3922024-03-14014 March 2024
Response to Request for Additional Information for the TMI-2 Post-Shutdown Decommissioning Activities Report, Rev. 5
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List of Threatened and Endangered Species That May Occur in Your Proposed Project Location or May Be Affected by Your Proposed Project
ML24073A2312024-03-13013 March 2024
and Three Mile Island Nuclear Station, Unit 2 - Management Change
ML24044A0092024-02-12012 February 2024
License Amendment Request – Three Mile Island, Unit 2, Historic and Cultural Resources Review, Response to Request for Additional Information
IR 05000320/20230042024-02-0707 February 2024
TMI-2 Solutions, LLC, Three Mile Island Nuclear Station, Unit 2 - NRC Inspection Report 05000320/2023004
ML24038A0222024-02-0505 February 2024
Achp Letter on Section 106 Programmatic Agreement Participation
IR 05000289/20230062024-01-29029 January 2024
Constellation Energy Generation, LLC, Three Mile Island Nuclear Station, Unit 1 - NRC Inspection Report No. 05000289/2023006
ML23342A1242024-01-0909 January 2024
Independent Spent Fuel Storage Installation Security Inspection Plan
ML23325A1092024-01-0505 January 2024
Review of the Management Plan for Three Mile Island Station, Unit No. 2, Debris Material
ML23354A2112023-12-20020 December 2023
Response to Request for Additional Information for the TMI-2 Post-Shutdown Decommissioning Activities Report, Rev. 5
ML23354A2062023-12-20020 December 2023
(TMI-2), Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
IR 05000320/20230032023-11-28028 November 2023
TMI-2 Solutions, LLC, Three Mile Island Nuclear Station, Unit 2, NRC Inspection Report No. 05000320/2023003
ML23243A9082023-08-29029 August 2023
Shpo Letter to TMI-2 Regarding Section 106 Activities
IR 05000320/20230022023-08-17017 August 2023
TMI-2 Solutions, LLC, Three Mile Island Nuclear Station, Unit 2 - NRC Inspection Report 05000320/2023002
ML23216A1772023-08-14014 August 2023
Consultation Letter to Rebecca Countess for TMI-2
ML23216A1742023-08-14014 August 2023
Consultation Letter to David Morrison for TMI-2
ML23216A1752023-08-14014 August 2023
Consultation Letter to Joanna Cain for TMI-2
ML23216A1732023-08-14014 August 2023
Consultation Letter to Christine Turner for TMI-2
IR 05000289/20230052023-08-14014 August 2023
Constellation Energy Generation, LLC, Three Mile Island Nuclear Station, Unit 1 - NRC Inspection Report 05000289/2023005
ML23216A1782023-08-14014 August 2023
Consultation Letter to Steve Letavic for TMI-2
ML23221A1402023-08-0808 August 2023
(TMI-2), Response to Requests for Additional Information for the TMI-2 Post-Shutdown Decommissioning Activities Report, Rev. 5
ML23200A1882023-07-31031 July 2023
TMI-2 Correction Letter Amendment 67
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Letter from PA Shpo to TMI-2 Solutions on Cultural and Historic Impacts of Decommissioning
ML23192A8272023-07-10010 July 2023
TMI-2 Solutions, LLC - Response to Shpo Request for Additional Information for Er Project 2021PR03278.006, TMI-2 Decommissioning Project
ML23167A4642023-07-0505 July 2023
Letter - TMI-2- Exemption 10 CFR Part 20 Append G Issuance
ML23167A0312023-06-28028 June 2023
Acceptance Review and Schedule for the Request for Exemption from a Requirement from 10 CFR 20, Appendix G, Section Iii.E, EPID L-2023-LLE-0016
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ML23138A0662023-05-17017 May 2023
TMI-2 NHPA Section 106 Shpo Letter to NRC 5-17-23
ML23137A2822023-05-17017 May 2023
(TMI-2), Request for Exemption from 10 CFR 20, Appendix G, Section Iii.E
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Issuance of Exemption from 10 CFR 70.24 (EPID-L-2023-LLE-0003)
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Shpo_Er_Summary_Letter
2024-06-03
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML24157A3672024-06-13013 June 2024
Updated Post-Shutdown Decommissioning Activities Report Request for Additional Information Transmittal Letter
ML24011A2352024-01-11011 January 2024
Eco Request for Additional Information for 2023 License Amendment Request 1-11-24
ML23187A0202023-06-29029 June 2023
TMI Unit 2 RAI Related to the Amended Post-Shutdown Decommissioning Activities Report
ML23187A0332023-06-29029 June 2023
TMI Unit 2, PSDAR Rev. 5 RAIs
ML23082A3432023-03-31031 March 2023
Enclosure - RAI - Three Mile Island, Unit 2 - Acceptance Review and Request for Additional Information for the Historic and Cultural Resources License Amendment Request - EPID: 2023-LLA-0026
ML22357A0142022-12-22022 December 2022
NRC Request for Additional Information Related to the TMI-2 Pdms Transition License Amendment Request
ML22210A0882022-07-29029 July 2022
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ML22143A8902022-05-23023 May 2022
Request for Additional information- TMI-1 ISFSI Only Physical Security License Amendment Request
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Clarification RAI Partial Response Email from C Smith to a Snyder
ML22110A0202022-04-19019 April 2022
Unit 1 Request for Additional Information
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TMI2 Accident Analyses Questions
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NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML20164A0902020-06-10010 June 2020
Request for Additional Information Related to TMI-1 License Amendment Request to Delete Permanently Defueled Technical Specification 3/4.1.4 (L-2019-LLA-0250)
ML19319B2082019-11-15015 November 2019
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ML19179A0612019-07-19019 July 2019
Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879
ML18220A7832018-08-0707 August 2018
NRR E-mail Capture - Request for Additional Information Related to TMI Fall 2017 Steam Generator Tube Inspection Report
ML18212A2712018-07-31031 July 2018
NRR E-mail Capture - Request for Additional Information Related to Amendment Regarding Decommissioning ERO Staffing Changes
ML17285B1962017-10-27027 October 2017
Request for Additional Information Regarding Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools.
ML17062A4912017-03-0303 March 2017
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative to RPV Threads in Flange Examination (CAC Nos. MF8712-MF8729)
ML16356A4802016-12-21021 December 2016
NRR E-mail Capture - RAIs on TMI License Amendment Request for Approval of Changes to the Three Mile Island Nuclear Station Emergency Plan Related to Staffing
ML16337A0072016-12-0101 December 2016
NRR E-mail Capture - Draft RAIs Three Mile Island Nuclear Station, Units 1 and 2, License Amendment Request for Approval of Changes to the Three Mile Island Nuclear Station Emergency Plan Related to Staffing
ML16287A4042016-10-11011 October 2016
Notification of Conduct of a Triennial Fire Protection Baseline Inspection
ML15230A5332015-08-18018 August 2015
Draft Request for Additional Information
ML15020A7372015-03-0808 March 2015
Request for Additional Information Regarding Related to December 22, 2014, Report Submitted Pursuant to 10 CFR 50.46
ML14307A1172014-11-14014 November 2014
Request for Additional Information Regarding Relief Request RR-14-01 Concerning Alternative Root Mean Square Depth Sizing Requirements
ML14240A4122014-09-0404 September 2014
Request for Additional Information Regarding License Amendment Request to Eliminate Certain Technical Specification Reporting Requirements (Tac MF0628)
ML14134A3222014-05-22022 May 2014
Request for Additional Information Regarding Review of Three Mile Island Nuclear Station Unit 1 Cycle 20 Core Operating Limits Report
ML14134A1722014-05-14014 May 2014
Draft RAIs in Support of NRC Staff Review of TMI Cycle 20 COLR
ML14052A2592014-02-27027 February 2014
Request for Additional Information Regarding Proposed License Amendment Request to Revise Technical Specification Reporting Requirements
ML14030A5832014-01-29029 January 2014
Draft Request for Additional Information Proposed Revision to Technical Specifications Reporting Requirements Exelon Generation Company, LLC Three Mile Island Nuclear Station, Unit 1
ML13266A2852013-10-21021 October 2013
Request for Additional Information on Three Mile Island Nuclear Station Unit 2 - post-shutdown Decommissioning Activities Report
ML13276A6492013-10-0303 October 2013
Notification of Conduct of a Triennial Fire Protection Baseline Inspection
ML13269A1792013-09-25025 September 2013
Draft Request for Additional Information
ML13253A2252013-09-10010 September 2013
Draft Request for Additional Information
ML13249A2072013-09-0505 September 2013
Draft Request for Additional Information
ML13193A1752013-07-22022 July 2013
Request for Additional Information Regarding Revision to Pressure and Temperature Limit Curves and Exemption Request for Initial Reference Temperature Values
ML13196A3382013-07-15015 July 2013
2013 Decommissioning Fund Report RAI
ML13193A1452013-07-12012 July 2013
Electronic Transmission, Draft Request for Additional Information Regarding Proposed Revision to Pressure and Temperature Limit Curves and Exemption Request for Initial Reference Temperature Values (TAC Nos. MF0425 & MF0426)
ML13176A4702013-06-26026 June 2013
Request for Additional Information Regarding Overall Integrated Plan in Response to Order Number EA-12-051, Reliable Spent Fuel Pool Instrumentation
ML13177A3902013-06-26026 June 2013
Electronic Transmission, Draft Request for Additional Information Regarding Overall Integrated Plan in Response to Order Number EA-12-051, Reliable Spent Fuel Pool Instrumentation
ML13066A2442013-03-19019 March 2013
Request for Additional Information Regarding Fifth Inservice Test Interval Relief Request PR-01 Nuclear Services Closed Cooling Water Flow Measurement
ML13066A1262013-03-0707 March 2013
Electronic Transmission, Draft Request for Additional Information Regarding Fifth Inservice Test Interval Relief Request PR-01 Nuclear Services Closed Cooling Water Flow Measurement
ML13044A3212013-03-0505 March 2013
Request for Additional Information Regarding 30-Day Report for Emergency Core Cooling System Model Changes Pursuant to the Requirements of 10 CFR 50.46
ML13045A6432013-02-25025 February 2013
Request for Additional Information Regarding Relief Request VR-01, Associated with the Fifth Inservice Testing Interval
ML13051A3852013-02-25025 February 2013
Request for Additional Information Regarding End-of-Interval Relief Request RR-12-01, Pressure Nozzle-to-Head Weld Exams
ML13050A6362013-02-20020 February 2013
Draft RAI Memo
ML13044A3122013-02-13013 February 2013
Electronic Transmission, Draft Request for Additional Information Regarding 30-Day Report for Emergency Core Cooling System Model Changes Pursuant to the Requirements of 10 CFR 50.46
ML13044A6652013-02-13013 February 2013
Electronic Transmission, Draft Request for Additional Information Regarding Relief Request VR-01, Associated with the Fifth Inservice Testing Interval
ML12306A4812012-11-19019 November 2012
Request for Additional Information Regarding 2011 Steam Generator Tube Inspection Report
2024-06-13
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 22, 2014 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
THREE MILE ISLAND NUCLEAR STATION, UNIT 1- REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAG NO. MF3332)
Dear Mr. Pacilio:
By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions.
The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014.
If you have any questions regarding this matter, please contact me at 301-415-4090.
Sincerely, Je~1:~ger Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289
Enclosure:
Request for Additional Information cc: Distribution via Listserv
REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO THE REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT THREE MILE ISLAND NUCLEAR STATION. UNIT 1 DOCKET NO. 50-289 By letter dated November 8, 2013, 1 Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 (TMI C20) Core Operating Limits Report (COLR). To complete its review of the TMI C20 COLR, the Nuclear Regulatory Commission (NRC or Commission) requests a response to the questions below.
Generic Letter (GL) 88-16, "Removal of Cycle-Specific Parameter Limits from Technical Specifications," provides guidance for the preparation of a license amendment request to modify Technical Specifications (TSs) that have cycle-specific parameter limits. An acceptable alternative to specifying the values of cycle-specific parameter limits in the TSs consists of:
(1) the addition of the definition of a named formal report that includes the values of cycle-specific parameter limit that have been established using an NRC-approved methodology and consistent with all applicable limits of the safety analysis; (2) the addition of an administrative reporting requirement to submit the formal report on cycle-specific parameter limits to the Commission for information; and (3) the modification of individual TSs to note that cycle-specific parameters shall be maintained within the limits provided in the defined formal report. GL 88-16 further clarifies that in COLR TS [6.x.x] core operating limits shall be established and documented in the COLR before each reload cycle or any remaining part of a reload cycle. The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC staff.
Based on the GL 88-16 guidance, TMI C20 TS 6.9.5.2 lists all approved methodologies to support the cycle-specific core operating parameters specified in TS 6.9.5.1. Therefore, both TS 6.9.5.1 and 6.9.5.2 in the TMI COLR TSs are associated with the acceptable alternative stated in item (1) above. The current TMI C20 COLR is associated with the acceptable alternative stated in item (2) above. While TS 6.9.5.2 lists six NRC approved methodology references, TMI C20 COLR lists 3 references in "REFERENCES." The staff found that:
(1) there are no cycle-specific core operating limits listed in TS 6.9.5.1; (2) there is no clear identification for cycle-specific core operating limits in the TMI C20 COLR, but only mentioned in the ABSTRACT; and (3) there are no clear cycle-specific operating limits in the TMI C20 COLR.
RAI-1: Please identify plant and cycle-specific parameters forTS 6.9.5.1 and show those core operating limits in the TMI C20 COLR.
1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13317A073.
Enclosure
RAI-2: Please justify that the use of any methodologies referenced in REFERENCES of the TMI C20 COLR to support the cycle-specific core operating limits (to be provided in RAI-1) is consistent with TS 6.9.5.2.
RAI-3: Please organize the TMI C20 COLR in accordance toTS 6.9.5.3 to include the proper TSs for cycle-specific core operating limits, the detailed limits, and their supporting methodologies listed in TS 6.9.5.2.
May 22, 2014 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
THREE MILE ISLAND NUCLEAR STATION, UNIT 1 -REQUEST FOR ADDITIONAL INFORMATION REGARDING REVIEW OF CYCLE 20 CORE OPERATING LIMITS REPORT (TAC NO. MF3332)
Dear Mr. Pacilio:
By letter dated November 8, 2013, Exelon Generation Company, LLC (Exelon) submitted the Three Mile Island Nuclear Station, Unit 1, Cycle 20 Core Operating Limits Report. To complete its review, the Nuclear Regulatory Commission staff requests a response to the enclosed questions.
The draft questions were sent to Mr. Francis Mascitelli, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions were clear, and to determine if the information was previously docketed. On May 22, 2014, Mr. Mascitelli agreed that you would provide a response by June 23, 2014.
If you have any questions regarding this matter, please contact me at 301-415-4090.
Sincerely, IRA/
Jeffrey A. Whited, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-289
Enclosure:
Request for Additional Information cc: Distribution via Listserv DISTRIBUTION:
PUBLIC RidsNrrPMThreeMilelsland Resource LPLI-2 R/F RidsAcrsAcnw_MaiiCTR Resource RidsNrrLAABaxter Resource RidsNrrDssSrxb Resource RidsRgn1 MaiiCenter Resource RidsNrrDoriDpr Resource RidsNrrDorllpl1-2 Resouce THuang, NRR ADAMS Accession Number* ML14134A322 *via e-mail **via memo OFFICE LPL 1-2/PM LPL 1-2/LA SRXB/BC LPLI-2/BC LPL 1-2/PM MKhanna NAME JWhited ABaxter* CJackson** JWhited (REnnis for}
DATE 05/22/2014 05/14/2014 05/14/2014 05/22/2014 05/22/2014 OFFICIAL RECORD COPY
