Letter Sequence Acceptance Review |
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TAC:ME9631, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control (Approved, Closed) TAC:ME9632, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting
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MONTHYEARML12286A0122012-09-28028 September 2012 License Amendment Request - Extended Power Uprate Project stage: Request ML12286A0112012-09-30030 September 2012 License Amendment Request - Extended Power Uprate, Attachment 4, NEDO-33566, Rev. 0, Safety Analysis Report, Constant Pressure Power Uprate, Page 2-488 Through End, and Attachments 5 and 7 Through 9 Project stage: Request ML12279A2852012-10-22022 October 2012 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML12279A2902012-10-22022 October 2012 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit 2 Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13042A0962013-02-0808 February 2013 Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Error in Main Steam Line High Flow Calculational Methodology Project stage: Request ML13051A0322013-02-15015 February 2013 Supplemental Information & Corrections Supporting Request for License Amendment Request - Extended Power Uprate - Supplement No. 1 Project stage: Supplement ML13056A4822013-03-0808 March 2013 Acceptance Review Regarding Proposed Extended Power Uprate Project stage: Acceptance Review ML13052A8532013-03-11011 March 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13052A8562013-03-11011 March 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13081A7052013-03-28028 March 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13106A1262013-04-26026 April 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13129A1432013-05-0707 May 2013 Extended Power Uprate, Supplement 2 - Response to Request for Additional Information Project stage: Supplement ML13149A1452013-05-24024 May 2013 Extended Power Uprate License Amendment Request - Supplement 3 Response to Request for Additional Information - Extended Power Uprate Project stage: Supplement ML13156A3682013-06-0404 June 2013 Extended Power Uprate License Amendment Request Supplement 4 Response to Request for Additional Information - Extended Power Uprate Project stage: Supplement ML13134A3842013-06-10010 June 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13161A3972013-06-26026 June 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13182A0252013-06-27027 June 2013 Supplemental Information Supporting Request for License Amendment Request - Extended Power Uprate - Supplement No. 5 Project stage: Supplement ML13178A3312013-07-0101 July 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13183A1992013-07-0303 July 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13203A1142013-07-23023 July 2013 Non-Proprietary - Request for Additional Information Regarding Proposed License Amendment Extended Power Uprate Project stage: RAI ML13203A1002013-07-23023 July 2013 Request for Additional Information Regarding License Amendment Request for Extended Uprate Project stage: RAI ML13211A4032013-07-30030 July 2013 EPU LAR Supplement 6 Attachment 2 - Response to Request for Additional Information - Snpb Project stage: Supplement ML13211A4022013-07-30030 July 2013 Extended Power Uprate License Amendment Request - Supplement 6 Response to Request for Additional Information - Extended Power Uprate Project stage: Supplement ML13213A2852013-07-31031 July 2013 Extended Power Uprate License Amendment Request - Supplement 7, Response to Request for Additional Information - Extended Power Uprate Project stage: Supplement ML13217A4312013-08-0505 August 2013 Extended Power Uprate License Amendment Request - Supplement 8 Response to Request for Additional Information - Extended Power Uprate Project stage: Supplement ML13221A0642013-08-15015 August 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13240A0022013-08-22022 August 2013 Extended Power Uprate License Amendment Request - Supplement 9 Response to Request for Additional Information Project stage: Supplement ML13232A2772013-08-26026 August 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13232A2902013-08-26026 August 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13241A4182013-08-29029 August 2013 Extended Power Uprate License Amendment Request - Supplement 10 Response to Request for Additional Information Project stage: Supplement ML13253A4162013-09-11011 September 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13260A0762013-09-13013 September 2013 Extended Power Uprate License Amendment Request - Supplement 11 Response to Request for Additional Information Project stage: Supplement ML13247A7692013-09-18018 September 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13261A0432013-09-18018 September 2013 Requesty for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: Other ML13242A0902013-10-0101 October 2013 Draft Environmental Assessment and Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Draft Other ML13242A1082013-10-0101 October 2013 Draft Environmental Assessment and Finding of No Significant Impact Related to the Proposed Extended Power Uprate Project stage: Draft Other ML13268A4002013-10-0101 October 2013 Enclosure 2 - Peach Bottom Atomic Power Station, Units 2 and 3 - Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13268A2632013-10-0101 October 2013 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI ML13289A1912013-10-11011 October 2013 Extended Power Uprate License Amendment Request - Supplement 12, Response to Request for Additional Information Project stage: Supplement ML13289A3002013-10-15015 October 2013 Extended Power Uprate License Amendment Request - Supplement 13 Response to Request for Additional Information Project stage: Supplement ML13308A3312013-10-31031 October 2013 Extended Power Uprate License Amendment Request - Supplement 14, Response to Request for Additional Information Project stage: Supplement ML13291A1222013-11-0606 November 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13339A8072013-11-22022 November 2013 Comment (1) of Kevin Borton on Behalf of Exelon Generation Co. LLC, on Proposed License Amendment to Increase the Maximum Reactor Power Level Project stage: Other ML13338A2502013-12-0404 December 2013 Notice of Forthcoming Closed Meeting with Exelon Generation Company, LLC (Exelon) to Discuss Steam Dryer Analysis Related to Proposed Extended Power Uprate (EPU) for Peach Bottom Atomic Power Station (Pbaps), Units 2 and 3 Project stage: Request ML13345A6872013-12-0606 December 2013 Supplement 15 Response to Request for Additional Information Extended Power Uprate License Amendment Request Project stage: Supplement ML13308C4412013-12-11011 December 2013 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML13351A3902013-12-19019 December 2013 Summary of Closed Meeting with Exelon Generation Company, LLC, to Discuss Steam Dryer Analysis Related to Proposed Extended Power Uprate for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Meeting ML13358A0832013-12-20020 December 2013 Extended Power Uprate License Amendment Request- Supplement 16 Corrections, Clarifications and Additional Information - Extended Power Uprate Project stage: Supplement ML13345B3102014-01-0808 January 2014 Request for Withholding Information from Public Disclosure for Peach Bottom Atomic Power Station, Unit Nos. 2 and 3 Project stage: Withholding Request Acceptance ML14002A1762014-01-15015 January 2014 Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Project stage: RAI 2013-05-24
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Category:Acceptance Review Letter
MONTHYEARML21077A1772021-04-0808 April 2021 Withdrawal of Requested Exemption from Certain Requirement in 10 CFR 50.55a (Epids L-2021-LLE-0014, 0015, & 0016) ML20343A3492020-12-0707 December 2020 Acceptance of Requested Licensing Action: Peach Bottom Relief Request for N-16 Nozzle ML20276A0762020-10-0202 October 2020 Acceptance of Requested Licensing Action, One-Time Acceptance for Review - Peach Bottom of Exemption from 10 CFR 50, Appendix E, Biennial Emergency Preparedness Exercise Requirements Due to COVID-19 Pandemic ML19322C1622019-11-18018 November 2019 Acceptance Review for Peach Bottom - ISI 4th Interval I4R-63 ML19260D1852019-09-16016 September 2019 Acceptance Review for Peach Bottom - Standby Liquid Control Nozzle 5th ISI Interval ML18295A2602018-10-22022 October 2018 Acceptance Review for Peach Bottom - License Amendment Request for TS Changes Related to HPSW System ML18295A3912018-10-22022 October 2018 Acceptance Review for Peach Bottom - License Amendment Request for Secondary Containment ML18254A2042018-09-10010 September 2018 Acceptance Review for Peach Bottom - License Amendment Request for Expanded Actions for LEFM Conditions ML18128A3072018-05-0707 May 2018 Acceptance Review for Peach Bottom - Relief Requests from ASME Section XI Code - 5th ISI Interval ML18107A7602018-04-17017 April 2018 Acceptance Review for Peach Bottom - Relief Requests from ASME Section XI Code - 5th ISI Interval Code Cases N-513-3 and N-513-4 ML17298A6102017-10-25025 October 2017 Acceptance Review - Peach Bottom Units 2 and 3 - TSTF-500 Amendment Request ML17073A0652017-03-20020 March 2017 Acceptance of Requested Licensing Action - License Amendment Request Regarding Measurement Uncertainty Recapture Power Uprate ML16175A3732016-06-23023 June 2016 Acceptance Review - Peach Bottom 2 & 3 - Emergency Diesel Generator Lube Oil Requirements (CACs MF8010 & MF8011) ML16090A1062016-03-30030 March 2016 E-mail Acceptance Review - Peach Bottom 2 & 3 - Recirculation Pump Discharge Valves Surveillance Frequency (CACs MF7528 & MF7529) ML15135A4372015-05-15015 May 2015 Approval of Steam Dryer Methodology and Resumption of EPU Power Ascension ML15133A4752015-05-13013 May 2015 Acceptance Review for TAC MF6169 - Peach Bottom Unit 3 - Safety Limit Minimum Critical Power Ratio ML14344A0312014-12-10010 December 2014 Acceptance Review for TACs MF5172 & MF5173 - Peach Bottom Units 2 and 3 - Primary Containment Leakage Rate Testing Program ML14233A0612014-08-21021 August 2014 Acceptance Review for TACs MF4523 & MF4524 - Peach Bottom Units 2 and 3 - Revise Technical Specification Definition for Recently Irradiated Fuel ML13231A0292013-08-19019 August 2013 Acceptance Review for TACs MF2509 and MF2510 - Peach Bottom Units 2 and 3 - Relief Request 01A-VRR-3 ML13199A4142013-07-18018 July 2013 Acceptance Review for TACs MF1970 and MF1971 - Peach Bottom Units 2 and 3 - License Amendment Request to Increase the Safety Relief Valve/Safety Valve Setpoint Tolerance ML13056A4822013-03-0808 March 2013 Acceptance Review Regarding Proposed Extended Power Uprate ML1226105292012-09-17017 September 2012 E-mail Regarding Acceptance Review for License Amendment Request to Add RHR Drywell Spray TS ML1215000382012-05-29029 May 2012 Acceptance Review for TACs ME8535 and ME8536 - Peach Bottom Units 2 and 3 - Relocation of P-T Limits to PTLR ML1116804112011-06-17017 June 2011 Acceptance Review for Exelon Threshold Determination Request (TAC ME6269 - ME6287) ML1008800852010-07-21021 July 2010 Fleet - Acceptance Review Implementation of Emergency Action Level Schemes Developed from NEI 99-01m Rev. 5 ML0924700432009-09-0303 September 2009 3 Acceptance Review Results Request to Use Specific Provisions from a Later Edition of the ASME Boiler and Pressure Vessel Code 2021-04-08
[Table view] Category:Letter
MONTHYEARML24240A1692024-09-18018 September 2024 Cy 2023 Summary of Decommissioning Trust Fund Status ML24255A8642024-09-0606 September 2024 Rscc Wire & Cable LLC Dba Marmon Industrial Energy & Infrastructure - Part 21 Retraction of Final Notification ML24221A2582024-09-0606 September 2024 Response to Request for Re-Engagement Regarding the Subsequent License Renewal Environmental Review for Peach Bottom Atomic Power Station, Units 2 and 3 05000277/LER-2024-003, (Pbaps), Unit 2, Automatic Reactor Scram Following Main Turbine Trip Due to Degraded Condenser Vacuum2024-09-0505 September 2024 (Pbaps), Unit 2, Automatic Reactor Scram Following Main Turbine Trip Due to Degraded Condenser Vacuum IR 05000277/20240022024-09-0404 September 2024 Reissued Integrated Inspection Report 05000277/2024002 and 05000278/2024002 IR 05000277/20240052024-08-29029 August 2024 Updated Inspection Plan for Peach Bottom Atomic Power Station, Units 2 and 3 (Report 05000277/2024005 and 05000278/2024005) ML24239A3972024-08-23023 August 2024 Rssc Wire & Cable LLC Dba Marmon - Part 21 Final Notification - 57243-EN 57243 ML24235A0342024-08-23023 August 2024 U.S. Nuclear Regulatory Commission’S Analysis of Constellation Energy Generation’S Decommissioning Funding Status Report IR 05000277/20240102024-08-23023 August 2024 Fire Protection Team Inspection Report 05000277/2024010 and 05000278/2024010 ML24227A5492024-08-14014 August 2024 Integrated Inspection Report 05000277/2024002 and 05000278/2024002 IR 05000482/20240052024-08-14014 August 2024 Updated Inspection Plan for Wolf Creek Generating Station (Report 05000482/2024005) ML24225A1692024-08-12012 August 2024 10 CFR 50.46 Annual Report ML24222A6772024-08-0909 August 2024 Response to Request for Additional Information for Application to Revise Technical Specifications to Adopt TSTF-591-A, Revise Risk Informed Completion Time (RICT) Program Revision 0 and Revise 10 CFR 50.69 License Condition ML24214A3232024-08-0101 August 2024 Response to Request for Additional Information - Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations ML24208A0962024-07-25025 July 2024 57243-EN 57243 - Rssc Wire & Cable LLC, Dba Marmon - Part 21 Notification ML24206A1252024-07-24024 July 2024 Revision of Three Procedures and Two Forms That Implement the Radiological Emergency Response Plan (RERP) ML24191A0612024-07-0606 July 2024 Independent Spent Fuel Storage Installation (ISFSI) - Annual Radioactive Effluent Release Report ML24178A4142024-06-26026 June 2024 Revision of One Procedure and One Form That Implement the Radiological Emergency Response Plan (RERP) ML24178A3672024-06-26026 June 2024 Correction to 2023 Annual Radioactive Effluent Release Report – Report 47 ML24177A1512024-06-24024 June 2024 Post Accident Monitoring Instrumentation Report ML24166A1172024-06-20020 June 2024 Regulatory Audit Summary Regarding Proposed Alternative Schedule to Complete Decommissioning Beyond 60 Years RS-24-061, Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations2024-06-14014 June 2024 Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations IR 05000277/20243012024-06-13013 June 2024 Initial Operator Licensing Examination Report 05000277/2024301 and 05000278/2024301 RS-24-058, Regarding Subsequent License Renewal Environmental Review2024-06-0505 June 2024 Regarding Subsequent License Renewal Environmental Review ML24151A6482024-06-0303 June 2024 Changes in Reactor Decommissioning Branch Project Management Assignments for Some Decommissioning Facilities ML24150A2722024-05-29029 May 2024 Annual Radiological Environmental Operating Report 81, January 1, 2023 Through December 31, 2023 ML24150A0032024-05-28028 May 2024 Request for Exemptions from 10 CFR 50.82(a)(8)(i)(A) and 10 CFR 50.75(h)(1)(iv) and Proposed Amendment to the Decommissioning Trust Agreement ML24079A0762024-05-23023 May 2024 Issuance of Amendments to Adopt TSTF 264 RS-24-055, 2023 Corporate Regulatory Commitment Change Summary Report2024-05-17017 May 2024 2023 Corporate Regulatory Commitment Change Summary Report ML24134A1792024-05-13013 May 2024 Supplemental Information in Support of Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations IR 05000277/20240012024-05-13013 May 2024 Integrated Inspection Report 05000277/2024001 and 05000278/2024001 IR 05000277/20245012024-05-0808 May 2024 Emergency Preparedness Biennial Exercise Inspection Report 05000277/2024501 and 05000278/2024501 RS-24-041, Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests2024-04-30030 April 2024 Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests ML24121A1832024-04-30030 April 2024 Pre-Submittal Meeting Presentation Material Peach Bottom ECCS Compensated Level System Replacement Project ML24118A0032024-04-27027 April 2024 2023 Annual Radioactive Effluent Release Report - Report 47 ML24120A2762024-04-23023 April 2024 Independent Spent Fuel Storage Installation (ISFSI) Facility - Annual Radioactive Effluent Release Report 66 January 1, 2023 Through December 31, 2023 CNL-24-033, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2024-04-17017 April 2024 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions ML24107A2462024-04-15015 April 2024 Submittal of Changes to Technical Specifications Bases ML24103A2042024-04-12012 April 2024 Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-591-A, Revise Risk Informed Completion Time (RICT) Program Revision 0 and Revise 10 CFR 50.69 License Condition ML24102A0472024-04-11011 April 2024 Operator Licensing Examination Approval ML24099A0012024-04-0808 April 2024 (PBAPS) Units 2 and 3, Uncoordinated DC Circuits Cause Unanalyzed Condition 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 RS-24-023, Report on Status of Decommissioning Funding.2024-03-22022 March 2024 Report on Status of Decommissioning Funding. 05000277/LER-2024-001, Submittal of LER 2024-001-00 for Peach Bottom Atomic Power Station (PBAPS) Unit 2, Automatic Reactor Scram Due to an Invalid Generator Lockout2024-03-21021 March 2024 Submittal of LER 2024-001-00 for Peach Bottom Atomic Power Station (PBAPS) Unit 2, Automatic Reactor Scram Due to an Invalid Generator Lockout IR 05000277/20244022024-03-12012 March 2024 Cybersecurity Inspection Report 05000277/2024402 and 05000278/2024402 (Cover Letter Only) ML24061A2642024-03-0101 March 2024 Revision of Two Procedures That Implement the Radiological Emergency Response Plan (RERP) for Wolf Creek Generating Station (WCGS) Commissioners ML24060A1192024-02-29029 February 2024 Notification of Conduct of a Fire Protection Team Inspection IR 05000277/20230062024-02-28028 February 2024 Annual Assessment Letter for Peach Bottom Atomic Power Station, Units 2 and 3 (Reports 05000277/2023006 and 05000278/2023006) IR 05000171/20230012024-02-20020 February 2024 Constellation Energy Generation, LLC - Peach Bottom Atomic Power Station, Unit 1 - NRC Inspection Report No. 05000171/2023001 ML24050A0012024-02-19019 February 2024 (Wcgs), Revision of One Form That Implements the Radiological Emergency Response Plan (RERP) 2024-09-06
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UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555*0001 March 8, 2013 Mr. Michael J. Pacilio President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND 3, ACCEPTANCE REVIEW REGARDING PROPOSED EXTENDED POWER UPRATE (TAC NOS. ME9631 AND ME9632)
Dear Mr. Pacilio:
By letter dated September 28, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 122860201), Exelon Generation Company, LLC (Exelon, the licensee) submitted a license amendment request for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3. The proposed amendment would authorize an increase in the maximum power level from 3514 megawatts thermal (MWt) to 3951 MWt. The requested change, referred to as an extended power uprate (EPU), represents an increase of approximately 12.4 percent above the current licensed thermal power level. The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff's acceptance review of this amendment request. The acceptance review was performed to determine if there is sufficient technical information, in scope and depth, to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant. Consistent with Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), an amendment to the license (including the technical specifications) must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications.
Section 50.34 of 10 CFR addresses the content of technical information required.
This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.
By letter dated December 18, 2012 (ADAMS Accession No. ML 12312A443), the NRC staff notified Exelon of specific supplemental information that needed to be submitted to enable the staff to begin its detailed review. By letter dated February 15, 2013 (ADAMS Accession No. ML 13051A032), Exelon provided the supplemental information.
The NRC staff has reviewed the supplemental information and concluded that it does provide technical information in sufficient detail to enable the staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment request in terms of regulatory requirements and the protection of public health and safety and the environment.
Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staff's ability to complete the detailed technical review are identified despite completion M. Pacilio -2 of an adequate acceptance review. You will be advised of any further information needed to support the NRC staff's detailed technical review by separate correspondence.
Your application dated September 28,2012, requested that the NRC staff complete its review by June 30, 2014. While the NRC staff will endeavor to meet this date, we note that the timeliness performance goal for EPU reviews is 18 months from the date of acceptance of the application for review (Le., 18 months from the date of this letter). The timeliness goals for power uprate reviews is discussed in SECY-12-0084, "Status Report on Power Uprates," dated June 15,2012 (ADAMS Accession No. ML 12116A342).
The NRC staff notes that the licensee's emergency core cooling system (ECCS) loss-of-coolant system (LOCA) analysis, supporting the proposed EPU, was performed using a fuel rod thermal-mechanical code that does not account for the effects of thermal conductivity degradation (TCD). As discussed in NRC Information Notice (IN) 2011-21, "Realistic Emergency Core Cooling System Evaluation Model Effects Resulting from Nuclear Fuel Thermal Conductivity Degradation," dated December 13,2011 (ADAMS Accession No. ML 113430785), and IN 2009-23, Supplement 1, "Nuclear Fuel Thermal Conductivity Degradation," dated October 26,2012 (IVIL 121730336), safety analyses performed for reactors using methods that do not account for TCD may underestimate the fuel's calculated peak cladding temperature.
As such, it is the staff's intent to request the licensee to provide information based on revised ECCS LOCA analyses that account for the effects of TCD. This information will be requested by separate correspondence.
Untimely resolution of this issue will impact the overall EPU review schedule.
If you have any questions, please contact me at (301) 415-1420, Sincerely, Richard B. Ennis, Senior Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-277 and 50-278 cc: Distribution via Listserv M. Pacilio of an adequate acceptance review. You will be advised of any further information needed to support the NRC staff's detailed technical review by separate correspondence.
Your application dated September 28,2012, requested that the NRC staff complete its review by June 30, 2014. While the NRC staff will endeavor to meet this date, we note that the timeliness performance goal for EPU reviews is 18 months from the date of acceptance of the application for review (i.e., 18 months from the date of this letter). The timeliness goals for power uprate reviews is discussed in SECY-12-0084, "Status Report on Power Uprates," dated June 15,2012 (ADAMS Accession No. ML 12116A342).
The NRC staff notes that the licensee's emergency core cooling system (ECCS) loss-of-coolant system (LOCA) analysis, supporting the proposed EPU, was performed using a fuel rod thermal-mechanical code that does not account for the effects of thermal conductivity degradation (TCD). As discussed in NRC Information Notice (IN) 2011-21, "Realistic Emergency Core Cooling System Evaluation Model Effects Resulting from Nuclear Fuel Thermal Conductivity Degradation," dated December 13, 2011 (ADAMS Accession No. ML 113430785), and IN 2009-23, Supplement 1, "Nuclear Fuel Thermal Conductivity Degradation," dated October 26,2012 (ML 121730336), safety analyses performed for reactors using methods that do not account for TCD may underestimate the fuel's calculated peak cladding temperature.
As such, it is the staffs intent to request the licensee to provide information based on revised ECCS LOCA analyses that account for the effects of TCD. This information will be requested by separate correspondence.
Untimely resolution of this issue will impact the overall EPU review schedule.
If you have any questions, please contact me at (301) 415-1420.
Sincerely, IRA! Richard B. Ennis, Senior Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-277 and 50-278 cc: Distribution via Listserv DISTRIBUTION:
PUBLIC RidsOgcRp Resource LPL 1-2 RIF RidsAcrsAcnw_MailCTR Resource RidsNrrDorlLpl1-2 Resource RidsRgn1 MailCenter Resource RidsNrrLAABaxter Resource RidsNrrDorl Resource RidsNrrPMPeachBottom Resource RidsNrrDeEmcb Resource RidsNrrDorlDpr Resource Ridsl\lrrDssSrxb Resource ADAMS Accession No' ML 13056A482
.. *via e-mail OFFICE LPL 1-2/PM LPL 1-2/LA* EMCB/BC (A) SRXB/BC LPL 1-2/BC NAME REnnis ABaxter AMcMurtray CJackson (SMiranda for) MKhanna DATE 3/8/13 2/25/13 2/25/13 3/8113 I 3/8/13 OFFICIAL RECORD COpy