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Category:Enforcement Action
MONTHYEARML20062B6572020-03-0303 March 2020
EA-19-114 Limerick Generating Station Units 1 and 2 - NRC Investigation Report No. 1-2019-011 and Notice of Violation (Cover Letter Only)
IR 05000353/20110092011-12-0808 December 2011
EA-11-221 Limerick - Final Significance Determination for a White Finding with Assessment Follow-Up and Notice of Violation (NRC Inspection Report No. 05000353/2011009)
IR 05000353/20090072009-12-16016 December 2009
EA-09-183, Limerick, Notice of Violation (Limerick Generating Station - NRC Investigation Report No. 1-2009-012) and NRC Inspection Report 05000352 & 05000353/2009007
ML0201101732002-01-11011 January 2002
EA-01-293, Limerick Unit 2, White Finding and NOV
2020-03-03
[Table view]
Category:Letter
MONTHYEARIR 05000352/20243012024-02-0202 February 2024
Initial Operator Licensing Examination Report 05000352/2024301 and 05000353/2024301
IR 05000352/20230042024-01-31031 January 2024
Integrated Inspection Report 05000352/2023004 and 05000353/2023004
IR 05000352/20240112024-01-31031 January 2024
Information Request to Support Post-Approval Site Inspection for License Renewal; Inspection Report 05000352/2024011
ML24026A2962024-01-26026 January 2024
Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS)- Syrs, .
ML24004A0342024-01-17017 January 2024
Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0026 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting))
IR 05000352/20230102024-01-11011 January 2024
Age-Related Degradation Report 05000352/2023010 and 05000353/2023010
IR 05000352/20234012023-12-21021 December 2023
Cybersecurity Inspection Report 05000352/2023401 and 05000353/2023401
ML23321A2362023-12-14014 December 2023
Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes
ML23278A1292023-12-14014 December 2023
Units 1 & 2; Limerick, Units 1 & 2; Nine Mile Point, Units 1 & 2; and Peach Bottom, Units 2 & 3 -Revision to Approved Alternatives to Use Boiling Water Reactor Vessel and Internals Project Guidelines
ML23333A2182023-11-29029 November 2023
Operator Licensing Examination Approval
ML23325A2062023-11-21021 November 2023
Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System
ML23313A0432023-11-13013 November 2023
Summary of Regulatory Audit in Support of Amendment Request for Control Room Air Conditioning Technical Specifications
ML23317A1192023-11-10010 November 2023
Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums
IR 05000352/20230032023-10-27027 October 2023
Integrated Inspection Report 05000352/2023003 and 05000353/2023003 and Independent Spent Fuel Storage Installation Inspection 07200065/2023001
ML23297A1722023-10-24024 October 2023
Request for Information for a Biennial Problem Identification and Resolution Inspection; Inspection Report 05000352/2024010 and 05000353/2024010
IR 05000352/20235012023-10-17017 October 2023
Emergency Preparedness Biennial Exercise Inspection Report 05000352/2023501 and 05000353/2023501
RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023
Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans
ML23279A0612023-10-0505 October 2023
Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs)
ML23276A5162023-10-0303 October 2023
Federal Emergency Management Agency Level 1 Finding from 2023 Evaluated Emergency Preparedness Exercise
ML23275A1082023-09-29029 September 2023
FEMA Level 1 Findings Limerick NPP- Boyertown/Colebrookdale
ML23241A9452023-09-27027 September 2023
Generation Station, Units 1 and 2 Regulatory Audit Plan Supporting Review of the Equipment Qualification Portion of Limerick Digital Instrumentation and Controls License Amendment Request
ML23269A0522023-09-26026 September 2023
Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000352/2023010 and 05000353/2023010
ML23255A0952023-09-12012 September 2023
Resubmittal of License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS) to Address
ML23254A0242023-09-0606 September 2023
Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs)
ML23249A1002023-09-0606 September 2023
Requalification Program Inspection
IR 05000352/20230052023-08-31031 August 2023
Updated Inspection Plan for Limerick Generating Station, Units 1 and 2 (Report 05000352/2023005 and 05000353/2023005)
ML23248A2082023-08-31031 August 2023
UFSAR Cover Page
ML23242A2172023-08-30030 August 2023
Response to Request for Additional Information for Application to Adopt TSTF-477, Revision 3, Add Action for Two Inoperable Control Room AC Subsystems and Associated Technical Specification Changes
NMP2L2851, Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations2023-08-25025 August 2023
Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations
ML23228A0942023-08-16016 August 2023
Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the .
IR 05000352/20230022023-08-14014 August 2023
Integrated Inspection Report 05000352/2023002 and 05000353/2023002
ML23220A0182023-08-0808 August 2023
Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000352/2023401 and 05000353/2023401
RS-23-087, Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor2023-08-0404 August 2023
Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor
ML23212B2362023-07-31031 July 2023
Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System - WEC Documents
ML23212B1052023-07-31031 July 2023
Supplement to License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the Digital Modernization Project Installation - Revise
ML23202A2192023-07-21021 July 2023
Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the .
ML23193B0122023-07-20020 July 2023
Audit Plan in Support of Review of License Amendment Request and Exemption Request for Digital Instrumentation and Controls Installation Support (Epids L-2023-LLA-0025 and L-2023-LLE-0005)
ML23187A0962023-07-19019 July 2023
Generation Station, Unit Nos. 1 and 2 - Revised Estimated Review Completion Date Concerning License Amendment Request to Replace Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System
ML23208A1522023-07-0606 July 2023
PEMA Letter Dated 7-6-23 Re Limerick Exercise 9-26-23
ML23177A2242023-06-26026 June 2023
Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection .
ML23145A1972023-06-23023 June 2023
Correction to the Renewed Facility Operating License Pages in Amendment Nos. 255, 256, 257, 258, 259, and 260
2024-02-02
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Text
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION REGION I 2100 RENAISSANCE BOULEVARD, SUITE 100 KING OF PRUSSIA, PA 19406-2713 March 3, 2020 EA-19-114 Mr. Bryan C. Hanson Senior Vice President, Exelon Generation Company, LLC President and Chief Nuclear Officer, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LIMERICK GENERATING STATION UNITS 1 AND 2 - NRC INVESTIGATION REPORT NO. 1-2019-011 AND NOTICE OF VIOLATION
Dear Mr. Hanson:
This letter refers to an investigation conducted by the U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (OI) at the Exelon Generation Co., LLC (Exelon) Limerick Generating Station (Limerick). The investigation, which was completed on October 19, 2019, involved security matters that are considered sensitive information. Therefore, details of the investigation are not included in this letter but are described in the non-public enclosures.
Based on the results of the NRC OI investigation, the NRC determined that a Severity Level IV violation of NRC requirements occurred. After considering the factors set forth in Section 2.3.2.a of the Enforcement Policy, this violation is being cited in the enclosed Notice of Violation (Notice). The details of the violation, including the assessment of its significance and the basis for citing the violation, are provided in Enclosure 1, and the Notice is provided as Enclosure 2.
The NRC notes that Exelon took immediate corrective actions to address any security-related vulnerability.
You are required to respond to this letter and should follow the instructions specified in the enclosed Notice when preparing your response. If you have additional information that you believe the NRC should consider, you may provide it in your response to the Notice. The NRC review of your response to the Notice will also determine whether further enforcement action is necessary to ensure compliance with regulatory requirements.
In accordance with Title 10 of the Code of Federal Regulations (10 CFR) Part 2.390 of the NRCs Rules of Practice, a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room and from the NRCs Agency-wide Documents Access and Management System (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html. However, the material enclosed herewith contains Security-Related Information in accordance with 10 CFR 2.390(d)(1), and its disclosure to unauthorized individuals could present a security vulnerability. Therefore, the material in the enclosures will not be made available electronically for public inspection in the NRC Public Document Room or from ADAMS. If Security-Related Information is necessary to provide an acceptable response, please mark your entire response Security-Related Information in accordance with 10 CFR 2.390(d)(1) and follow the instructions for withholding in 10 CFR 2.390(b)(1). In accordance with 10 CFR 2.390(b)(1)(ii), the NRC is waiving the affidavit requirements for your response.
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION B. Hanson 2 Please note that final NRC investigation documents, such as the OI report described above, may be made available to the public under the Freedom of Information Act (FOIA), subject to redaction of information appropriate under the FOIA. Requests under the FOIA should be made in accordance with 10 CFR 9.23, Requests for Records. Additional information is available on the NRC website at http://www.nrc.gov/reading-rm/foia/foia-privacy.html.
This enforcement action will be administratively tracked under NRC Inspection Report No.
05000352; 05000353/2020404. Should you have any questions regarding this letter, please contact Mr. Jon Greives, Chief, Branch 4, Division of Reactor Projects in Region I, at 610-337-5337.
Sincerely,
/RA/
Daniel S. Collins, Director Division of Reactor Projects Docket Nos. 50-352 and 50-353 License Nos. NPF-39 and NPF-85
Enclosure:
As described cc w/o encl; w/o OUO: Distribution via ListServ cc w/encl; w/OUO:
S. Desimone, Manager, Site Security D. Allard, Director, PA DEP OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION
SUBJECT:
LIMERICK GENERATING STATION UNITS 1 AND 2 - NRC INVESTIGATION REPORT NO. 1-2019-011 AND NOTICE OF VIOLATION DATED March 3, 2020 Distribution w/o encl; w/o OUO:
Public D. Lew, RA R. Lorson, DRA D. Collins, DRP B. Welling, DRP J. Yerokun, DRS P. Krohn, DRS D. Screnci / N. Sheehan, PAO J. Weil, OCA B. Klukan, ORA R. McKinley, ORA D. Tifft, RI Enforcement Coordinators RII, RIII, RIV (M. Kowal, J. Cameron, J. Groom)
N. Moran, OGC D. Furst, OE O. Lopez-Santiago, RI, OEDO F. Gore, OI M. Holmes, OI R1ORAMail Resource R1DRPMailResource R1 OE Files (with concurrences)
RidsNrrPMLimerick Resource RidsNrrDorlLpl1 Resource ROPreports Resource RidsOEMailCenter Resource Distribution w/encl; w/OUO:
T. Keene, NSIR D. Johnson, NSIR N. Simonian, NSIR E. Wharton, NSIR J. Shehee, DRS, RII S. Orth, DRS, RIII R. Kellar, DRS, RIV J. Greives, DRP S. Rutenkroger, DRP, SRI S. Haney, DRP, RI DOC NAME: S:\Enf-allg\Enforcement\Proposed-Actions\Region1\ML20062B657_LIM Comp NOV-IV PUBLIC EA 114.docx ADAMS Accession Number: ML20062B657ADAMS PACKAGE: ML20023A004 Non-Sensitive Publicly Available X SUNSI Review/ X Non-Publicly Available X Sensitive OFFICE RI/ORA RI/ DRP RI/DRS RI/ORA RI/ORA OE M McLaughlin/ D Furst via NAME J Greives/ JEG* F Bower/ FLB* B Klukan/ BMK* R McKinley/ RRM*
MMM* email DATE 1/24/20 1/28/20 2/11/20 2/18/20 2/13/20 2/27/20 OFFICE NSIR OGC RI/DRP NAME S Prasad via email N Moran NLO via email D Collins DATE 2/20/20 2/27/20 03/03/2020
- See/ previous concurrence OFFICIAL RECORD OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION
