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Category:Emergency Preparedness-Emergency Plan Implementing Procedures
MONTHYEARRA-23-0225, Procedure AD-EP-ALL-0109, Offsite Protective Action Recommendations, Revision 9, and the Joint Information Center (JIC) Relocation, Summary of Changes2023-09-20020 September 2023 Procedure AD-EP-ALL-0109, Offsite Protective Action Recommendations, Revision 9, and the Joint Information Center (JIC) Relocation, Summary of Changes ONS-2018-027, Emergency Plan Revision 2018-0022018-03-28028 March 2018 Emergency Plan Revision 2018-002 ONS-2018-017, Revised Evaluation of Emergency Plan2018-03-15015 March 2018 Revised Evaluation of Emergency Plan ONS-2017-084, Oconee Nuclear Station, Units 1, 2, and 3 - Emergency Plan Program Procedure Revision2017-11-20020 November 2017 Oconee Nuclear Station, Units 1, 2, and 3 - Emergency Plan Program Procedure Revision ONS-2017-084, Emergency Plan Program Procedure2017-11-20020 November 2017 Emergency Plan Program Procedure ML17333A1282017-11-20020 November 2017 Emergency Plan Program Procedure Revision ONS-2017-070, Emergency Plan Implementing Procedures, Volume 2, Revision 2017-0022017-09-0505 September 2017 Emergency Plan Implementing Procedures, Volume 2, Revision 2017-002 RA-17-0037, Transmittal of Emergency Plan Implementing ProceduSR/0/A/2000/003, Revision 142017-07-27027 July 2017 Transmittal of Emergency Plan Implementing ProceduSR/0/A/2000/003, Revision 14 ONS-2017-056, Oconee, Units 1, 2 and 3 - Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0042017-07-20020 July 2017 Oconee, Units 1, 2 and 3 - Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-004 ML17208A0632017-07-20020 July 2017 Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-004 ONS-2017-056, Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2017-0042017-07-14014 July 2017 Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2017-004 ML17166A1362017-06-15015 June 2017 Units 1 & 2, McGuire, Units 1 & 2, Oconee, Units 1, 2 & 3, H. B. Robinson, Unit 2 - Transmittal of Emergency Plan Implementing Procedure AD-EP-ALL-1000, Revision 2 RA-17-003, Brunswick, Units 1 & 2, Catawba, Units 1 & 2, McGuire, Units 1 & 2, Oconee, Units 1, 2 & 3, H. B. Robinson, Unit 2 - Transmittal of Emergency Plan Implementing Procedure AD-EP-ALL-1000, Revision 22017-06-15015 June 2017 Brunswick, Units 1 & 2, Catawba, Units 1 & 2, McGuire, Units 1 & 2, Oconee, Units 1, 2 & 3, H. B. Robinson, Unit 2 - Transmittal of Emergency Plan Implementing Procedure AD-EP-ALL-1000, Revision 2 RA-17-0031, Enclosures 1 and 2: 10CFR50.54(q) Summary and Emergency Plan Implementing Procedure AD-EP-ALL-1000, Revision 22017-06-15015 June 2017 Enclosures 1 and 2: 10CFR50.54(q) Summary and Emergency Plan Implementing Procedure AD-EP-ALL-1000, Revision 2 ONS-2017-040, Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0032017-05-22022 May 2017 Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-003 ONS-2017-031, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0022017-04-26026 April 2017 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-002 ONS-2017-030, Emergency Plan Revision 2017-002. Part 2 of 22017-04-20020 April 2017 Emergency Plan Revision 2017-002. Part 2 of 2 RA-17-0021, Transmittal of Emergency Plan Implementing Procedures: AD-EP-ALL-0501, Revision 1 and SR/O/A/2000/004, Revision 82017-04-20020 April 2017 Transmittal of Emergency Plan Implementing Procedures: AD-EP-ALL-0501, Revision 1 and SR/O/A/2000/004, Revision 8 ONS-2017-018, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-001 ONS-2017-017, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-001 ONS-2017-001, Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 0452017-03-0202 March 2017 Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 045 ONS-2017-011, Emergency Plan Revised Evaluation2017-02-0202 February 2017 Emergency Plan Revised Evaluation ONS-2017-006, Emergency Plan Revision 2016-0032017-01-12012 January 2017 Emergency Plan Revision 2016-003 ONS-2016-097, Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S)2016-11-17017 November 2016 Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S) RA-16-0040, Transmittal of Emergency Plan Implementing Procedures: EP Fam 3.3, Revision 16 and AD-EP-ALL-1000, Revision 12016-11-10010 November 2016 Transmittal of Emergency Plan Implementing Procedures: EP Fam 3.3, Revision 16 and AD-EP-ALL-1000, Revision 1 RA-16-0038, Transmittal of Emergency Plan Implementing Procedures: SR/0/A/2000/003 Revision 10; SR/0/A/2000/004, Revision 7; AD-EP-ALL-0202, Revision 2; AD-EP-ALL-0301, Revision 1; Etqs 7111.0, Revision 10; EMG-NGGC-0004 (Deleted); EMG-NGCC-005 (Supe2016-10-12012 October 2016 Transmittal of Emergency Plan Implementing Procedures: SR/0/A/2000/003 Revision 10; SR/0/A/2000/004, Revision 7; AD-EP-ALL-0202, Revision 2; AD-EP-ALL-0301, Revision 1; Etqs 7111.0, Revision 10; EMG-NGGC-0004 (Deleted); EMG-NGCC-005 (Supers ML16286A2452016-10-0505 October 2016 Emergency Plan Implementing Procedures ONS-2016-085, Submittal of Emergency Plan Revision 2016-0022016-10-0505 October 2016 Submittal of Emergency Plan Revision 2016-002 ONS-2016-076, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2016-0042016-08-24024 August 2016 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2016-004 RA-16-0026, Transmittal of Emergency Plan Implementing Procedure SR/0/A/2000/003, Revision 92016-07-14014 July 2016 Transmittal of Emergency Plan Implementing Procedure SR/0/A/2000/003, Revision 9 ONS-2016-041, Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2016-0022016-05-12012 May 2016 Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2016-002 ONS-2016-036, Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2016-0012016-04-28028 April 2016 Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2016-001 RA-16-0022, Transmittal of Emergency Plan Implementing Procedure, Revision 15 to EP Fam 3.3, Alert and Notification System (Siren Program)2016-04-21021 April 2016 Transmittal of Emergency Plan Implementing Procedure, Revision 15 to EP Fam 3.3, Alert and Notification System (Siren Program) RA-16-0009, Duke Energy - Transmittal of Emergency Plan Implementing ProceduAD-EP-ALL-0802, Revision 22016-02-15015 February 2016 Duke Energy - Transmittal of Emergency Plan Implementing ProceduAD-EP-ALL-0802, Revision 2 RA-16-0004, Duke Energy - Transmittal of Fleet Emergency Plan Implementing Procedure AD-EP-ALL-0202, Revision 1, Emergency Response Offsite Dose Assessment2016-01-0707 January 2016 Duke Energy - Transmittal of Fleet Emergency Plan Implementing Procedure AD-EP-ALL-0202, Revision 1, Emergency Response Offsite Dose Assessment RA-15-0038, Transmittal of Emergency Plan Implementing Procedure, Revision 7 to SR/0/A/2000/003, Activation of the Emergency Operations Facility2015-08-20020 August 2015 Transmittal of Emergency Plan Implementing Procedure, Revision 7 to SR/0/A/2000/003, Activation of the Emergency Operations Facility ONS-2015-071, Submittal of Emergency Plan Revision 2015-0042015-06-25025 June 2015 Submittal of Emergency Plan Revision 2015-004 ONS-2015-045, License Amendment Request to Change the Emergency Plan to Upgrade ONS Emergency Action Levels Based on NEI 99-01, Revision 6, License Amendment Request No. 2015-042015-06-23023 June 2015 License Amendment Request to Change the Emergency Plan to Upgrade ONS Emergency Action Levels Based on NEI 99-01, Revision 6, License Amendment Request No. 2015-04 ONS-2015-063, Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2015-0042015-06-22022 June 2015 Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2015-004 ONS-2015-048, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2015-0032015-05-20020 May 2015 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2015-003 RA-15-0019, Duke Energy Carolina LLC Submits Epips, Rev 5 to SR/0/A/2000/003, Activation of the Emergency Operations Facility and Rev 4 to SR/0/A/2000/004, Notification to States and Counties from the Emergency Operations Facility for Catawba, McGuir2015-04-23023 April 2015 Duke Energy Carolina LLC Submits Epips, Rev 5 to SR/0/A/2000/003, Activation of the Emergency Operations Facility and Rev 4 to SR/0/A/2000/004, Notification to States and Counties from the Emergency Operations Facility for Catawba, McGuire ONS-2015-017, Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2015-0022015-03-0505 March 2015 Emergency Plan Implementing Procedures Manual, Volume 1, Revision 2015-002 ONS-2014-165, Emergency Plan Revision 2014-0032015-01-19019 January 2015 Emergency Plan Revision 2014-003 ONS-2014-160, Emergency Plan Implementing Procedure, Revision 2014-0272015-01-0505 January 2015 Emergency Plan Implementing Procedure, Revision 2014-027 ONS-2014-155, Submittal of Emergency Plan Implementing Procedure Revision 2014-0262014-12-30030 December 2014 Submittal of Emergency Plan Implementing Procedure Revision 2014-026 ONS-2014-142, Emergency Plan Implementing Procedure Revision 2014-0242014-11-10010 November 2014 Emergency Plan Implementing Procedure Revision 2014-024 ML14321A0732014-11-10010 November 2014 Emergency Plan Implementing Procedure Revision 2014-024 ONS-2014-135, Emergency Plan Implementing Procedure Revision 2014-0232014-10-30030 October 2014 Emergency Plan Implementing Procedure Revision 2014-023 ONS-2014-115, Emergency Plan Implementing Procedure Revision 2014-0212014-09-11011 September 2014 Emergency Plan Implementing Procedure Revision 2014-021 ONS-2014-066, Emergency Plan Implementing Procedures Manual Volume C, Revision 2014-0142014-05-22022 May 2014 Emergency Plan Implementing Procedures Manual Volume C, Revision 2014-014 2023-09-20
[Table view] Category:Letter type:ONS
MONTHYEARONS-2018-025, 2017 Annual Radiological Environmental Operating Report (AREOR)2018-05-15015 May 2018 2017 Annual Radiological Environmental Operating Report (AREOR) ONS-2018-024, 2017 Annual Radioactive Effluent Release Report (ARERR)2018-04-30030 April 2018 2017 Annual Radioactive Effluent Release Report (ARERR) ONS-2018-032, Ufsar/Selected Licensee Commitment Changes2018-04-17017 April 2018 Ufsar/Selected Licensee Commitment Changes ONS-2018-029, Technical Specifications Task Force (TSTF) - 448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 32018-04-0404 April 2018 Technical Specifications Task Force (TSTF) - 448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 3 ONS-2018-027, Oconee, Units 1, 2, and 3, Submittal of Emergency Plan Revision 2018-0022018-03-28028 March 2018 Oconee, Units 1, 2, and 3, Submittal of Emergency Plan Revision 2018-002 ONS-2018-023, Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency2018-03-20020 March 2018 Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency ONS-2018-017, Oconee, Units 1, 2, and 3, Submittal of Revised Evaluation to Emergency Plan2018-03-15015 March 2018 Oconee, Units 1, 2, and 3, Submittal of Revised Evaluation to Emergency Plan ONS-2018-021, ISFSI - Submittal of 2017 Annual Effluent Release Report2018-03-0101 March 2018 ISFSI - Submittal of 2017 Annual Effluent Release Report ONS-2018-020, Refuel 28 (O2R28) In-service Inspection (ISI) and Steam Generator In-service Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval2018-02-26026 February 2018 Refuel 28 (O2R28) In-service Inspection (ISI) and Steam Generator In-service Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval ONS-2018-013, Technical Specification Bases Changes2018-02-22022 February 2018 Technical Specification Bases Changes ONS-2018-015, Duke Energy Response to Request for Additional Information; Request for Alternative to Codes and Standards Requirements Pursuant to 10 CFR 50.55a(z) to Satisfy 10 CFR 50.55a(h)(2) Associated with Bronze Tape Wrapped Emergency Power Cabl2018-02-19019 February 2018 Duke Energy Response to Request for Additional Information; Request for Alternative to Codes and Standards Requirements Pursuant to 10 CFR 50.55a(z) to Satisfy 10 CFR 50.55a(h)(2) Associated with Bronze Tape Wrapped Emergency Power Cables i ONS-2018-014, License Amendment Request (LAR) for Changes to the Duke Energy Physical Security Plan - License Amendment Request No. 2018-012018-02-12012 February 2018 License Amendment Request (LAR) for Changes to the Duke Energy Physical Security Plan - License Amendment Request No. 2018-01 ONS-2018-019, Submittal of Emergency Plan, Section B2018-02-0505 February 2018 Submittal of Emergency Plan, Section B ONS-2018-011, Ufsar/Selected Licensee Commitment Changes2018-01-25025 January 2018 Ufsar/Selected Licensee Commitment Changes ONS-2017-087, Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from ...2017-12-0404 December 2017 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from ... ONS-2017-083, Core Operating Limits Report (COLR) for Cycle 29 ONEl-0400-491, Revision 02017-11-21021 November 2017 Core Operating Limits Report (COLR) for Cycle 29 ONEl-0400-491, Revision 0 ONS-2017-041, Revision to Tornado/Helb Mitigation Strategies and Regulatory Commitments2017-11-15015 November 2017 Revision to Tornado/Helb Mitigation Strategies and Regulatory Commitments ONS-2017-085, Duke Energy Comments on the October 24, 2017, Public Meeting with NRC Committee to Review Generic Requirements (CRGR)2017-11-15015 November 2017 Duke Energy Comments on the October 24, 2017, Public Meeting with NRC Committee to Review Generic Requirements (CRGR) ONS-2017-079, Supplemental Information to Support NRC Review of Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency2017-11-13013 November 2017 Supplemental Information to Support NRC Review of Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency ONS-2017-078, Emergency Plan Revision 2017-0042017-11-0909 November 2017 Emergency Plan Revision 2017-004 ONS-2017-074, Proposed Amendment to the Renewed Facility Operating Licenses Regarding Revisions to the Updated Final Safety Analysis Report Section Associated with Tile Standby Shutdown Facility License Amendment Request No. 2017-032017-10-20020 October 2017 Proposed Amendment to the Renewed Facility Operating Licenses Regarding Revisions to the Updated Final Safety Analysis Report Section Associated with Tile Standby Shutdown Facility License Amendment Request No. 2017-03 ONS-2017-067, Response to Request for Additional Information Regarding License Amendment Request for TSTF-448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 22017-10-16016 October 2017 Response to Request for Additional Information Regarding License Amendment Request for TSTF-448, Revision 3, Control Room Habitability, License Amendment Request No. 2015-03, Supplement 2 ONS-2017-069, (ONS) - Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement2017-10-13013 October 2017 (ONS) - Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement ONS-2017-070, Transmittal of Oconee, Units 1, 2, and 3, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-0022017-10-0505 October 2017 Transmittal of Oconee, Units 1, 2, and 3, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-002 ONS-2017-072, Fifth Ten Year Lnservice Inspection Interval, Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency2017-10-0303 October 2017 Fifth Ten Year Lnservice Inspection Interval, Relief Request No. 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B Examination Frequency ONS-2017-066, Registration for Use of General License Spent Fuel Cask Numbers 147 and 1482017-09-20020 September 2017 Registration for Use of General License Spent Fuel Cask Numbers 147 and 148 ONS-2017-061, Revised Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator License Examinations2017-08-10010 August 2017 Revised Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator License Examinations ONS-2017-060, Registration for Use of General License Spent Fuel Cask Numbers 145 and 1462017-08-0303 August 2017 Registration for Use of General License Spent Fuel Cask Numbers 145 and 146 ONS-2017-059, Transmittal of Response to March 12, 2012 Request for Information, Recommendation 2.1 Flooding, Required Response 3, Flooding Focused Evaluation Summary2017-07-31031 July 2017 Transmittal of Response to March 12, 2012 Request for Information, Recommendation 2.1 Flooding, Required Response 3, Flooding Focused Evaluation Summary ONS-2017-050, Technical Specification Bases Change 2017-042017-07-21021 July 2017 Technical Specification Bases Change 2017-04 ONS-2017-052, Technical Specification Bases Change 2017-032017-07-20020 July 2017 Technical Specification Bases Change 2017-03 ONS-2017-043, Technical Specification Bases Change 2017-012017-07-20020 July 2017 Technical Specification Bases Change 2017-01 ONS-2017-047, Registration for Use of General License Spent Fuel Cask Numbers 142, 143, and 1442017-06-27027 June 2017 Registration for Use of General License Spent Fuel Cask Numbers 142, 143, and 144 ONS-2017-042, Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement, License Amendment Request No. 2015-08, Supplement 22017-06-0101 June 2017 Additional Information Regarding License Amendment Request for Temporary Completion Time for One Keowee Hydro Unit Inoperable for Generator Stator Replacement, License Amendment Request No. 2015-08, Supplement 2 ONS-2017-040, Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0032017-05-22022 May 2017 Transmittal of Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-003 ONS-2017-037, 2016 Annual Radiological Environmental Operating Report2017-05-15015 May 2017 2016 Annual Radiological Environmental Operating Report ONS-2017-026, Submittal of Ufsar/Selected Licensee Commitment Change2017-04-11011 April 2017 Submittal of Ufsar/Selected Licensee Commitment Change ONS-2017-024, Revision 028 to ERTG-001, Emergency Response Organization and Emergency Services Training Program2017-03-16016 March 2017 Revision 028 to ERTG-001, Emergency Response Organization and Emergency Services Training Program ONS-2017-001, Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 0452017-03-0202 March 2017 Submittal of Emergency Plan Program Procedure HP/O/B/1009/001 Rev 045 ONS-2017-017, Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 1, Revision 2017-001 ONS-2017-018, Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-0012017-03-0202 March 2017 Emergency Plan Implementing Procedures Manual Volume 2, Revision 2017-001 ONS-2017-015, End of Cycle 29 (1 EOC29) Refueling Outage Lnservice Inspection (ISI) and Steam Generator Lnservice Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval2017-02-24024 February 2017 End of Cycle 29 (1 EOC29) Refueling Outage Lnservice Inspection (ISI) and Steam Generator Lnservice Inspection (SG-ISI) Report, Fifth 10-Year ISI Interval ONS-2017-019, Technical Specification Bases Change 2015-092017-02-23023 February 2017 Technical Specification Bases Change 2015-09 ONS-2017-011, Emergency Plan Revised Evaluation2017-02-0202 February 2017 Emergency Plan Revised Evaluation ONS-2017-009, Units 1, 2 & 3 - Notification of Compliance with Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events.2017-02-0101 February 2017 Units 1, 2 & 3 - Notification of Compliance with Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events. ONS-2017-004, Submittal of Core Operating Limits Report2017-01-12012 January 2017 Submittal of Core Operating Limits Report ONS-2017-006, Emergency Plan Revision 2016-0032017-01-12012 January 2017 Emergency Plan Revision 2016-003 ONS-2016-097, Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S)2016-11-17017 November 2016 Emergency Plan/Emergency Plan Implementing Procedures Manual, Revised 10CFR 50.54(q) Evaluation(S) ONS-2016-098, Special Report Per Technical Specification 5.6.6, Inoperability of Post Accident Monitoring Containment High Range Radiation Monitors2016-11-14014 November 2016 Special Report Per Technical Specification 5.6.6, Inoperability of Post Accident Monitoring Containment High Range Radiation Monitors ONS-2016-096, Revised Response to NRC Regulatory Issue Summary 2015-05, Preparation and Scheduling of Operator Licensing Examinations2016-11-10010 November 2016 Revised Response to NRC Regulatory Issue Summary 2015-05, Preparation and Scheduling of Operator Licensing Examinations 2018-05-15
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Table 1 - Oconee Nuclear Station Flooding Issue Date LIC-504 Initiated: 11/03/14 Date of Report: 12/02/14 [ ] draft [ X ] final Summary Description of Issue:
The issues to be resolved by the LIC-504 process regarding flood protection are: 1) Should Interim Actions be provided by the Licensee? 2) Do the licensees interim actions provide an appropriate short-term response to address the reevaluated hazard while the longer term integrated assessment is performed? 3) Is a Commitment to implement the interim actions the appropriate regulatory tool?
The issues will be resolved consistent with the ongoing regulatory processes associated with Near-Term Task Force Recommendation 2.1.
Name/Title Organization Telephone Decision Authority Sheena Whaley/Branch Chief NRR/JLD/JHMB 301-415-0213 Evaluation Team: Name/Title Organization Telephone Project Lead(s) Juan F. Uribe/Project Manager NRR/JLD/JHMB 301-415-3809 Frankie Vega/Project Manager NRR/JLD/JHMB 301-415-1617 HQ Support Randy Hall/Project Manager NRR/DORL/LPLII-1 301-415-4032 Aida Rivera-Varona/Branch Chief NRO/DSEA/RHMB2 301-415-4001 Michelle Bensi/Tech Reviewer NRO/DSEA/RHMB1 301-415-0073 Regional Support Eddy Crowe/Senior Resident RII/DRP/RPB1/SRI 864-882-6927 Frank Ehrhardt/Branch Chief RII/DRP/RPB1/BC 404-997-4611 ADAMS Accession No. ML14322A748
SUBJECT:
STAFF DOCUMENTATION OF THE INTERIM ACTIONS REVIEW PROCESS (LIC-504) ASSOCIATED WITH THE FLOODING HAZARD REEVALUATIONS FOR RECOMMENDATION 2.1 OF THE NEAR-TERM TASK FORCE FOR OCONEE NUCLEAR STATION, UNITS 1, 2 AND 3.
EXECUTIVE
SUMMARY
By letter dated March 12, 20121, the U.S. Nuclear Regulatory Commission (NRC) issued a request for information pursuant to Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Section 50.54(f) (hereafter referred to as the 50.54(f) letter). The purpose of that request was to gather information concerning, in part, the external flooding hazards at operating reactor sites to enable the NRC staff to determine whether a license should be modified, suspended, or revoked.
By letter dated March 12, 2013,2 Duke Energy Carolinas, LLC (Duke Energy) provided their Flood Hazard Reevaluation Report (FHRR) for the Oconee Nuclear Station (ONS), Units 1, 2 and 3, in response to Enclosure 2 of the 50.54(f) letter. By letter dated September 3, 20133, Duke Energy provided a supplement to the FHRR, which provided updated information on the interim actions plans for ONS Units 1, 2 and 3 considered as part of the March 12, 2013 submittal. The licensee stated that no interim actions were necessary to be taken or planned beyond the pre-existing flood commitments (referred to compensatory measures in the FHRR) that are in place and are described in Confirmatory Action Letter4 (CAL) dated June 3, 2010.
The NRC staff has reviewed the information provided by the licensee, previous NRC staff assessments of the compensatory measures and staff evaluations5, as well as information and insights provided by ONS NRC resident inspectors related to the interim actions.
The NRC staff has independently verified that the licensees proposed interim actions (e.g existing interim compensatory measures) will perform their intended function of mitigating and/or protecting the plant from flood levels that are higher than the current licensing basis of the plant.
This is based on the staffs previous review of compensatory measures described in the June 2010 CAL. As such, the staff concludes that the interim actions (compensatory measures) for ONS, Units 1, 2 and 3 provide an appropriate short-term response to address the reevaluated flood hazard defined in the licensees FHRR until the licensee submits revisions to the Jocassee Dam failure analysis and performs and submits the longer term integrated assessment. No further information regarding the interim actions is needed at this time.
1 The March 12, 2012, 50.54(f) letter can be found at Agencywide Documents Access and Management System (ADAMS) Accession No. ML12053A340.
2 The Flood Hazard Reevaluation Report is available under ADAMS Accession No. ML13079A227.
3 The supplemental letter is available under ADAMS Accession No. ML13254A149.
4 The ONS Confirmatory Action Letter is available under ADAMS Accession No. ML101610083.
5 NRC staff affirmed the licensees compensatory measures as part of the CAL dated June 3, 2010. The staff accepted an inundation study in a safety evaluation issued in January 2011, available under ADAMS ML110280153.
Documentation of staff decisions regarding implementation of permanent modifications for protection from external flooding is available under ADAMS ML13063A110.
REVIEW PROCESS As identified in Table 1 above, the issues being resolved and documented regarding the ONS flooding hazard reevaluation are:
- 1. Should interim actions be provided by the licensee?
- 2. Do the licensees interim actions provide an appropriate short-term response to address the reevaluated hazard while the longer term integrated assessment is performed?
- 3. Is a commitment to implement the interim actions the appropriate regulatory tool?
Office Instruction LIC-504 Integrated Risk-Informed Decision Making Process for Emergent Issues, Revision 4, is being used to systematically document the NRC staffs review and decision making process in a uniform and consistent manner. The staff evaluated the appropriateness of the proposed interim action(s) (credited commitments from the flood confirmatory letter referenced above) in the context of whether the actions provide a reasonable, short-term means to address the reevaluated flooding hazard(s). The review considered the licensees ability and capability to respond to the reevaluated flooding hazard(s) to ensure that these actions would maintain the plant in a safe condition. The review did not verify or evaluate the flood causing mechanisms described in the FHRR or evaluate the appropriateness of the interim actions for purposes beyond the short-term application for which they are intended.
EVALUATION Should Interim Actions be provided by the licensee?
Background
The threshold for submittal of interim actions by a licensee is specified in Enclosure 2 of the 50.54(f) letter. The 50.54(f) letter stated that [f]or the sites where the reevaluated flood exceeds the design basis, addressees are requested to submit an interim action plan that documents actions planned or taken to address the reevaluated hazard with the hazard evaluation. The interim actions are intended to address the higher flooding hazards while the licensee performs and submits the longer-term integrated assessment review.
Results of Flood Hazard Reevaluated Report In the March 12, 2013 FHRR and September 3, 2013 supplemental letter, the licensee stated that two of the re-evaluated flood hazard mechanisms, the local intense precipitation (LIP) and the upstream dam failure, exceeded the current design basis (CDB) flooding hazards.
The licensee also stated that issues with LIP and upstream dam failure events associated with the CLB were previously identified and compensatory measures are currently in place for mitigation of these CLB events. These measures are:
- A total of 15 compensatory measures were identified to address the upstream dam failure and these were put into place in response to the CAL issued to the licensee in June 2010.
- Regarding the LIP current licensing basis event, compensatory measures were taken in the form of adding flood barrier sandbags and gryffolyn coverings. These actions were identified in 2012 as part of a corrective action program (CAP) entry.
The licensee analyzed the potential vulnerabilities associated with the LIP and upstream dam failure mechanisms defined in the FHRR, in accordance with the process laid out in the 50.54(f) letter. The September 2013 supplemental later stated that ONS ultimately determined that no interim actions were necessary to be taken or planned to address the higher flood level derived from the Local Intense Precipitation event. For LIP, the licensee credits existing site Abnormal Procedures and Emergency Operating Procedures to mitigate the effects of flooding (e.g., loss of power caused by the flood). The licensee further concluded that with respect to flood levels from postulated dam failures, it was also determined that no new interim actions [beyond those defined in the CAL] were necessary.
The licensee also stated that it has installed two other interim actions to help protect against the hypothetical fair-weather failure of the Jocassee dam. These two features are the temporary ONS Intake Canal Dike Flood Barrier and the permanent swale wall located above the chemical treatment pond. ONS does not take credit for these two features in the CLB or as interim actions in the FHRR; however, they are referenced as additional actions taken at the site to reduce the potential effects of a Jocassee Dam failure. The NRC staff has previously evaluated these actions in a January 28, 2011 staff evaluation. After the submittal of the FHRR, the NRC staff identified areas of concern related to the Jocassee Dam failure analysis as a result of the methodology selected by the licensee to perform the review.
Subsequently, the licensee indicated that they will provide a revised dam failure-related analysis, including a seismic dam failure analysis, by February 15, 2015. Therefore, the review performed by the NRC staff that is documented in this LIC-504 corresponds to the information presented in the original March 12, 2013 FHRR and will be revised, as necessary, once the results of the updated flood hazard evaluations are submitted by the licensee.
Conclusion The NRC staff confirmed that Duke Energy submitted interim actions for ONS, Units 1, 2 and 3 in accordance with the established processes. Specifically, the licensee credited the 15 interim compensatory measures detailed in the June 22, 2010, CAL for the dam failure event.
The licensee concluded that no interim actions were needed for LIP.
Do the licensees interim actions provide an appropriate short-term response to address the reevaluated hazard while the longer term integrated assessment is performed?
Background
The following table is a summary of the interim actions that have been referenced by Duke Energy in the March 12, 2013, FHRR and supplemental letters. This list is derived from the 15 CAL compensatory measures, and the actions taken by ONS in order to satisfy the June 2010 CAL.
Interim Action/
Compensatory Description Measure 1 Perform flooding studies using HEC-RAS for comparison with previous
DAMBRK models to more accurately represent anticipated flood heights in the west yard following a postulated failure of the Jocassee Dam.
Maintain plans, procedures and guidance documents implemented to address 2
mitigation of postulated flood events which could render the SSF inoperable.
Create a guidance document to consolidate river management and storm 3
management processes.
4 Maintain a dam safety inspection program.
Maintain a monitoring program that includes observation wells, seepage 5
monitoring points and surveys of displacement monuments, among others.
6 Assign an Oconee engineer as Jocassee Dam contact Install ammeters and voltmeters on Keowee spillway gates for equipment 7
condition monitoring.
Ensure forebay and tailrace level alarms are provided for Jocassee to support 8
timely detection of a developing dam failure.
Add a storage building adjacent to the Jocassee spillway to house the backup 9
spillway gate operating equipment.
Obtain and stage a portable generator and electric drive motor near the 10 Jocassee spillway gates to serve as a second set of backup spillway gate operating equipment.
Conduct Jocassee Dam failure Table Top Exercise with Oconee participation 11 to exercise and improve response procedures.
Instrumentation and alarm of selected seepage monitoring locations for timely 12 detection of degrading conditions.
Provide additional video monitoring of Jocassee Dam for timely assessment of 13 degrading conditions.
Obtain and stage a second set of equipment (including a B.5.b-type pump) for 14 implementation of the external flood mitigation guidance.
Conduct Jocassee Dam/Oconee Emergency Response Organization Drill to 15 exercise and improve response procedures.
NRC Review The NRC staff performed a two part review as follows:
- 1. The NRC headquarters staff performed a technical review to determine whether the proposed interim actions provide reasonable, short-term means to address the reevaluated hazard and whether the proposed interim actions can be reasonably expected to be within the capability of plant personnel. In the cases where the HQ staff identified additional information needs, these were communicated to the plant resident inspectors. The issues were included, as appropriate, in the regions review activities.
- 2. The resident staff performed Temporary Instruction (TI) 2515/190, Inspection of the Licensees Proposed Interim Actions as a Result of the Near-Term Task Force Recommendation 2.1-Flooding Reevaluation. The objective of the inspection was to independently verify that the licensees proposed interim actions will perform their intended function for flood protection and mitigation and that any deficiencies identified during the inspection were entered in the licensees CAP.
Specifically, the NRC staff reviewed the limited-scope information provided in the FHRR and supplemental letters, such as the current flood design-basis at the site, the reevaluated flood levels based in the FHRR, and the interim actions or compensatory measures that have been performed in the past and have been credited in this reevaluation. Previous evaluations which led to the identification of compensatory measures have been reviewed by staff under different regulatory programs and were not re-evaluated as part of this review. In addition, a March 19, 20136, letter documents the NRCs staff decision regarding the implementation of permanent modifications for protection from external flooding and provides additional background. The resident inspectors verified that the licensees proposed interim actions were acceptable by inspecting that:
- The procedures or activities can be executed as specified/written, and within available time, if time-dependent
- The water levels and associated effects, and severe weather conditions would not impair support functions and would not impede performing necessary interim actions.
- Equipment availability and/or staffing issues would not prevent implementation of the interim actions.
- Proposed interim actions do not result in adverse consequences to other activities at the site.
- Verified that issues identified were entered into the licensee's CAP.
The inspectors verified that issues identified were entered into the licensee's CAP. The resident inspectors documented the results of the TI 2515/190 inspection in inspection report (05000269/2013004, 05000270/2013004, 05000287/2013004) (ADAMS Accession No. ML13318A936). The interim compensatory measures for external flooding due to the dam failure (identified above) were previously inspected and the results documented in NRC inspection report 05000269, 270, 287/2012005.
Conclusion:
The NRC staff concludes that the interim actions for Oconee Nuclear Station, Units 1, 2 and 3 appear reasonable and provide an appropriate short-term response to address the reevaluated flood hazard defined in the licensees FHRR while the licensee resubmits the Jocassee Dam failure analysis and submits the longer-term integrated assessment for staff review. No further information regarding the interim actions is needed at this time.
Is a Commitment to implement the interim actions the appropriate regulatory tool?
Based on the evaluation performed by the NRC staff, a commitment to implement the interim actions for ONS, Units 1, 2 and 3 is acceptable because the interim actions proposed by the licensee appear reasonable and within plant capabilities until the licensee resubmits the Jocassee Dam failure analysis and the total plant response to the reevaluated hazard is determined by the integrated assessment.
6 The staff decision letter regarding implementation is available under ADAMS Accession No. ML13063A110.
CONCLUSION The NRC staff concludes that the interim actions submitted by Duke Energy for the Oconee Nuclear Station, Units 1, 2 and 3 and previously identified as part of past evaluations, appear reasonable and provide an appropriate short-term response to address the reevaluated flood hazard defined in the licensees FHRR until the licensee resubmits the Jocassee Dam failure breach analysis and performs and submits the longer-term integrated assessment for staff review. No further information or staff actions regarding the interim actions are needed at this time.
ML14322A748 *via email OFFICE NRR/JLD/JHMB/PM NRR/JLD/JHMB/PM NRO/DSEA/RHMB1* NRO/DSEA/RHMB2/BC*
NAME JUribe FVega MBensi ARivera-Varona DATE 12/01/14 12/01/14 11/25/14 11/25/14 OFFICE NRR/DORL/LPLII-1* RII/DRP/RPB1/SRI* RII/DRP/RPB1/BC* NRR/JLD/JHMB/BC NAME RHall ECrowe FEhrhardt SWhaley DATE 11/20/14 11/26/14 11/26/14 12/02/14