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Category:Letter
MONTHYEARIR 05000346/20243012024-02-0202 February 2024 NRC Initial License Examination Report 05000346/2024301 IR 05000346/20230042024-01-31031 January 2024 Integrated Inspection Report 05000346/2023004 ML23313A1352024-01-17017 January 2024 Authorization and Safety Evaluation for Alternative Request RP 5 for the Fifth 10 Year Interval Inservice Testing Program ML23353A1192023-12-19019 December 2023 Operator Licensing Examination Approval Davis Besse Nuclear Power Station, January 2024 L-23-260, Corrections to the 2022 Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station2023-12-0707 December 2023 Corrections to the 2022 Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station L-23-243, Independent Spent Fuel Storage Installation - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-0606 December 2023 Independent Spent Fuel Storage Installation - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23338A3172023-12-0606 December 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000346/2024001 IR 05000346/20234032023-11-0202 November 2023 Security Baseline Inspection Report 05000346/2023403 ML23293A0612023-11-0101 November 2023 Letter to the Honorable Marcy Kaptur, from Chair Hanson Responds to Letter Regarding Follow Up on Concerns Raised by Union Representatives During the June Visit to the Davis-Besse Nuclear Power Plant L-23-215, Changes to Emergency Plan2023-10-19019 October 2023 Changes to Emergency Plan ML23237B4222023-09-28028 September 2023 Energy Harbor Nuclear Corp. - Vistra Operations Company LLC - Letter Regarding Order Approving Transfer of Licenses and Draft Conforming License Amendments ML23269A1242023-09-27027 September 2023 Request for Withholding Information from Public Disclosure IR 05000346/20234012023-09-13013 September 2023 Security Baseline Inspection Report 05000346/2023401 (Public) L-23-205, Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-09-12012 September 2023 Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments L-23-172, Quality Assurance Program Manual2023-08-31031 August 2023 Quality Assurance Program Manual IR 05000346/20230112023-08-30030 August 2023 Biennial Problem Identification and Resolution Inspection Report 05000346/2023011 ML23129A1722023-08-25025 August 2023 Request for Withholding Information from Public Disclosure for Beaver Valley Power Station, Units 1 and 2; Davis Besse Nuclear Power Station, Unit 1; and Perry Nuclear Power Plant, Unit 1 IR 05000346/20230052023-08-24024 August 2023 Updated Inspection Plan for Davis-Besse Nuclear Power Station (Report 05000346/2023005) L-23-188, Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-08-0707 August 2023 Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments IR 05000346/20230502023-08-0303 August 2023 Special Inspection Report 05000346/2023050 IR 05000346/20230902023-08-0101 August 2023 EA-23-002 Davis-Besse Nuclear Power Station - NRC Inspection Report No. 05000346/2023090 (Public) ML23178A2742023-08-0101 August 2023 Letter to the Honorable Marcy Kaptur from Chair Hanson Responds to Letter Regarding the License Transfer Application for the Davis-Besse Nuclear Power Station L-23-175, Submittal of Fifth Ten Year Inservice Testing Program2023-08-0101 August 2023 Submittal of Fifth Ten Year Inservice Testing Program IR 05000346/20230022023-07-27027 July 2023 Integrated Inspection Report 05000346/2023002 ML23193A7842023-07-13013 July 2023 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000346/2023402 ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III ML23160A2342023-06-13013 June 2023 Confirmation of Initial License Examination L-23-034, 2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models2023-06-13013 June 2023 2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models IR 05000346/20235012023-06-13013 June 2023 Emergency Preparedness Biennial Exercise Inspection Report 05000346/2023501 L-23-135, Response to Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-05-31031 May 2023 Response to Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations L-23-065, Annual Financial Report2023-05-22022 May 2023 Annual Financial Report ML23124A1742023-05-17017 May 2023 Energy Harbor Fleet Vistra License Transfer - Request for Withholding Information from Public Disclosure for Commance Peak Plant, Units 1 & 2, Beaver Valley Station, Units 1 & 2, Davis Besse Station, Unit 1 and Perry Plant, Unit 1 ML23129A0112023-05-16016 May 2023 Notice of Consideration of Approval of Indirect and Direct License Transfer for Comanche Peak Plant, Units 1 & 2, Beaver Valley Station, Units 1 & 2, Davis Besse Station, Unit 1 and Perry Plant, Unit 1 (EPID L-2023-LLM-0000) (Letter) ML23131A2732023-05-15015 May 2023 Notification of NRC Supplemental Inspection 95001 and Request for Information L-23-101, Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station - 20222023-05-12012 May 2023 Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station - 2022 L-23-131, Readiness for Resumption of NRC Supplemental Inspection2023-05-12012 May 2023 Readiness for Resumption of NRC Supplemental Inspection IR 05000346/20230102023-05-0909 May 2023 Commercial Grade Dedication Inspection Report 05000346/2023010 ML23123A1272023-05-0303 May 2023 Information Request to Support Upcoming Problem Identification and Resolution Inspection at Davis-Besse Nuclear Power Station IR 05000346/20230012023-05-0101 May 2023 Integrated Inspection Report 05000346/2023001 and 07200014/2022001 L-23-092, Occupational Radiation Exposure Report for Year 20222023-04-27027 April 2023 Occupational Radiation Exposure Report for Year 2022 ML23111A1972023-04-26026 April 2023 Information Meeting with Question and Answer Session to Discuss NRC 2022 End-of-Cycle Plant Performance Assessment of Davis-Besse Nuclear Power Plant Station ML23114A1062023-04-25025 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection CP-202300181, ISFSI, Beaver Valley, Units 1 and 2, ISFSI, Davis-Besse, Unit 1, ISFSI, Perry, Unit 1, ISFSI, Corrected Affidavit for Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-04-20020 April 2023 ISFSI, Beaver Valley, Units 1 and 2, ISFSI, Davis-Besse, Unit 1, ISFSI, Perry, Unit 1, ISFSI, Corrected Affidavit for Application for Order Consenting to Transfer of Licenses and Conforming License Amendments CP-202300157, ISFSI, Beaver Valley, Units 1 and 2, ISFSI, Davis-Besse, Unit 1, ISFSI, Perry, Unit 1, and ISFSI, Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-04-14014 April 2023 ISFSI, Beaver Valley, Units 1 and 2, ISFSI, Davis-Besse, Unit 1, ISFSI, Perry, Unit 1, and ISFSI, Application for Order Consenting to Transfer of Licenses and Conforming License Amendments ML23096A1382023-04-11011 April 2023 Review of the Spring 2022 Steam Generator Tube Inspection Report L-23-061, Submittal of the Decommissioning Funding Status Reports2023-03-31031 March 2023 Submittal of the Decommissioning Funding Status Reports L-23-037, and Perry Nuclear Power Plant - Independent Spent Fuel Storage Installation Changes, Tests, and Experiments2023-03-29029 March 2023 and Perry Nuclear Power Plant - Independent Spent Fuel Storage Installation Changes, Tests, and Experiments L-23-066, Annual Notification of Property Insurance Coverage2023-03-21021 March 2023 Annual Notification of Property Insurance Coverage ML23066A2892023-03-14014 March 2023 Request for Threshold Determination Under 10 CFR 50.80 and 10 CFR 72.50 for an Amendment to the Voting Agreement ML23066A2592023-03-14014 March 2023 Request for Withholding Information from Public Disclosure for Beaver Valley Power Station, Units 1 and 2, Davis Besse Nuclear Power Station, Unit 1, and Perry Nuclear Power Plant, Unit 1 2024-02-02
[Table view] Category:Memoranda
MONTHYEARML23129A6062023-05-0404 May 2023 Special Inspection Team Charters to Evaluate the Circumstances Surrounding the Ground Settling at the Davis-Besse Nuclear Power Station ML23044A3662023-02-15015 February 2023 Calendar Year 2022 Reactor Oversight Process Baseline Inspection Program Completion - Region III ML21096A2282021-03-30030 March 2021 FEMA Disapproval of Davis-Besse Exercise Exemption ML19182A3562019-07-23023 July 2019 Quarterly Report on the Status of Public Petitions Under Title 10 of the Code of Federal Regulations, Section 2.206 - April 1 to June 30, 2019 ML19162A0102019-06-0707 June 2019 Memorandum to File Environmental Assessment and Finding of No Significant Impact for Firstenergy Nuclear Operating Company'S Decommissioning Funding Plan Submitted in Accordance with 10 CFR 72.30(B) and 72.30(C) for Davis Besse ISFSI ML16088A2052016-03-28028 March 2016 Enclosure 1 - (72.30 DFP Reviews to Be Completed 2015) - Memo T Bowers from s Ruffin, Technial Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations ML16088A2042016-03-28028 March 2016 Memo T Bowers from s Ruffin, Technical Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations W/ Encl 2 (Template) ML15205A1692015-08-0707 August 2015 ACRS Review of the Davis Besse Nuclear Plant LRA - Transmittal of the Sser ML15182A1912015-07-16016 July 2015 Annual Financial Test for a Parent Company Guarantee Given by Firstenergy Solutions Corporation and Firstenergy Corporation ML15089A1642015-04-27027 April 2015 Summary of February 25, 2015, Partially Closed Meeting with Industry Stakeholders Regarding the Babcock and Wilcox Loss of Coolant Accident Evaluation Model Analysis IR 05000334/20004122014-07-0808 July 2014 NRC Staff'S Spot-Check Review of First Energy Nuclear Operating Company'S Ownership Interest in Beaver Valley, Units 1 and 2, Perry, and Davis-Besse, Docket No. 05000334, 05000412, 05000440, and 05000346, on June 10, 2014-Finding of No Pote ML14099A4642014-05-0606 May 2014 Summary of Public Meetings to Discuss Draft Supplement 52 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding Davis-Besse Nuclear Generating Station, Unit 1 ML13280A9062013-10-21021 October 2013 Forthcoming Meeting with Firstenergy Nuclear Operating Company (FENOC) to Discuss Voluntary Risk Informed Fire Protection Amendment for Davis-Besse ML13142A5122013-07-0202 July 2013 Summary of Telephone Conference Call Held on May 21, 2013, Between NRC and Firstenergy Nuclear Operating Company, Concerning RAI Pertaining to the Davis-Besse Nuclear Power Station, LRA ML13171A2922013-06-13013 June 2013 LTR-13-0540 - Bill Hawkins and Vinod Arora Email San Onofre Nuclear Generating Station (SONGS) Lessons Learn for Davis-Besse ML13154A4442013-06-0404 June 2013 Rai'S Following Ifib Analysis of Fenoc'S 2013 Decommissioning Funding Status Report for Davis-Besse and Perry ML12199A2072012-07-17017 July 2012 Public Meeting Notice to Discuss the 2011 End-of-Cycle Performance Assessment ML12158A4002012-06-0808 June 2012 6/26/2012 Forthcoming Meeting Firstenergy Nuclear Operating Company (FENOC) ML1206901652012-03-0909 March 2012 Memo - Summary of Public Meeting with Industry Regarding Pwrog'S Boric Acid Corrosion Test Program ML12018A1652012-01-27027 January 2012 Summary of Telephone Conference Call Held on November 9, 2011, Between the NRC and Firstenergy Nuclear Operating Company, Concerning RAI Pertaining to the Davis-Besse, LRA ML14028A5462012-01-25025 January 2012 NRC Telecon Regarding Davis-Besse License Renewal Severe Accident Mitigation Alternatives Analysis Questions ML11363A1712012-01-23023 January 2012 Summary of Telephone Conference Call Held on December 12, 2011 Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning Request for Additional Information ML11355A0952011-12-29029 December 2011 Summary of Telephone Conference Call Held on December 8, 2011, Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning RAIs Pertaining to the Davis-Besse Nuclear Power Station, LRA ML11348A0212011-12-21021 December 2011 Summary of Telephone Conference Call Held on November 1, 2011 Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning Requests for Additional Information Pertaining to the Davis Besse Nuclear Pow ML11341A1182011-12-14014 December 2011 Summary of Telephone Conference Call Held on June 15, 2011 Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning Requests for Additional Information Pertaining to the Davis-Besse Nuclear Power ML11339A0862011-12-13013 December 2011 Summary of Telephone Conference Call Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning RAIs Pertaining to the Davis-Besse Nuclear Power Station LRA ML11327A0082011-12-0202 December 2011 Summary of Telephone Conference Call Held on September 29, 2011, Between the NRC and Firstenergy Nuclear Operating Company, Concerning RAI Pertaining to the Davis-Besse, LRA ML11327A0792011-12-0202 December 2011 Summary of Telephone Conference Call Held on Between the U.S. Nuclear Regulatory Commission and Firstenergy Nuclear Operating Company, Concerning Requests for Additional Information Pertaining to the Davis Besse Nuclear Power Station ML11327A0872011-12-0202 December 2011 Summary of Telephone Conference Call Held on July 27, 2011, Between the NRC and Firstenergy Nuclear Operating Company Concerning RAI Pertaining to the Davis-Besse, LRA ML11279A2182011-10-0606 October 2011 Memo - Task Interface Agreement - Evaluation of Compliance with Code for Examination of Flange Stud Holes on the Replacement Vessel Head at the Davis-Besse Nuclear Power Station (TIA 2011-015) ML11242A0032011-09-12012 September 2011 Summary of Conference Call Held on August 4, 2011, Between the NRC and FENOC Concerning Requests for Additional Information Pertaining to the Davis-Besse License Renewal Application ML1122701392011-08-15015 August 2011 Request for Additional Information Response Clarification from Davis-Besse Nuclear Power Station in Support of License Renewal Application Review ML11173A2002011-08-0101 August 2011 Summary of Public Scoping Meetingsconducted Related to the Review of the Davis-Besse Nuclear Power Station, Unit 1, LRA ML11193A2032011-07-26026 July 2011 Final Response to TIA 2011-001, Davis-Besse Nuclear Power Station Safety-Related Batteries Electrical Separation Design and Licensing Bases ML11174A2322011-06-21021 June 2011 for the Record-06-21-2011: NRC Ensures Public Safety Through Rigorous Oversight of Nuclear Power Plant Safety Standards ML1108202762011-06-0303 June 2011 Summary of Site Audit Related to the Review of the License Renewal Application for Davis-Besse Nuclear Power Station, Unit 1 ML11174A2472011-05-31031 May 2011 for the Record-05-31-2011: NRC Chairman Gregory B. Jaczko'S Statement on Nrc'S Commitment to Safety ML1110806902011-04-20020 April 2011 Notice of Meeting with First Energy Nuclear Operating Company (FENOC) to Discuss a Proposed LAR to Delete Technical Specification 5.5.8g, Steam Generator (SG) Program Auxiliary Feedwater Header Inspections ML1028702612010-10-22022 October 2010 11/04/10 Notice of Meeting to Discuss the License Renewal Process and Environmental Scoping for Davis-Besse Nuclear Power Station License Renewal Application Review ML1029106182010-10-14014 October 2010 Documentation of Telephone Conversation Between Mr. David Lochbaum Regarding Follow-Up Questions Related to NRC Letter Dated July 28, 2010 (ML102040807) ML1028503032010-10-12012 October 2010 Acceptance of License Renewal Application, Davis-Besse Nuclear Power Station ML0935101922009-12-14014 December 2009 Completion of Davis-Besse Lessons Learned Task Force Recommendation 3.3.4(8) ML0825606772008-09-15015 September 2008 Presentation Disc ML0814207532008-05-20020 May 2008 Summary of Public Meeting with Firstenergy Nuclear Operating Company to Discuss the 2008 Davis-Besse End-of-Cycle Performance Assessment ML0807400842008-03-14014 March 2008 Draft Regulatory Guide for Comment ML0723302222007-08-28028 August 2007 09/12/2007 Notice of Meeting with Firstenergy to Discuss the August 3, 2007 License Amendment Request for Conversion to Improved Technical Specifications for Davis-Besse, Unit 1 ML0722108432007-08-0707 August 2007 Request for Renewal of Deviation to the Reactor Oversight Process Action Matrix for Davis-Besse Nuclear Power Station ML0717103462007-06-21021 June 2007 Revised Notice of Meeting with Firstenergy to Discuss Response to Nrc'S 05/14/2007, Demand for Information Regarding Fenoc'S Re-analysis of the Timeline and Root Causes for the 2002 Davis-Besse Reactor Pressure Vessel Head Degradation Event ML0716202122007-06-13013 June 2007 Notice of Meeting with Firstenergy Regarding May 14, 2007 Demand for Information Davis-Besse ML0712803322007-05-18018 May 2007 April 2007 Report on the Status of Public Petitions Under Title 10 of the Code of Federal Regulations (10 Cfr), Section 2.206 2023-05-04
[Table view] |
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Doc No. 092512 TO: File DATE: September 25, 2012 FROM: Steven Dort
SUBJECT:
NRC Telecon Regarding Davis-Besse License Renewal -
Severe Accident Mitigation Alternatives Analysis Questions
NRC Attendees: Elaine Keegan, John Parillo, Steve Short, Bruce Schmitt
FENOC Attendees: Cliff Custer, Cindy Williams, Steven Dort This telephone conference call was initia ted by Elaine Keegan, NRC Environmental Project Manager for Davis-Besse License R enewal. The telecon took place at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br /> on September 25, 2012. The purpose of the call was to discuss questions raised by the Nuclear Regulatory Commission (NRC) during review of the revised Severe Accident Mitigation Alternatives (SAMA) A nalysis submitted by FENOC letter L-12-244 dated July 16, 2012.
The NRC requested clarification for two specif ic issues from the July 16, 2012 letter as follows: 1. Attachment 1, item 3, explains that the escalation of decontamination costs was revised to be based on the consumer price index. Provide the value of this revised escalation factor and the value used in the SAMA
analysis provided in the Environmental Report. FENOC responded that a multiplier of 1.95 was used to escalate costs to 2009 dollars (from 1986 dollars) to compensate for changes in the
consumer price index during the analysis period. The SAMA analysis provided in the Environmental Repor t did not consider an escalation factor and was based on values in terms of 1986 dollars. See
Environmental Report Table E.3-19, "MACCS2 Economic Parameters
Used in CHRONC," in the July 16, 2012 letter for the updated cost
information. 2. Attachment 1 describes five co rrections made to the SAMA analysis.
These corrections, however, do not appear to explain the changes to the
Modular Accident Analysis Program (MAAP) results provided in the Enclosure to Attachment 3 (Amendm ent No. 29), including the following: a. Table 4.e-1 indicates changes were made to PLHEAT for various release categories. b. Table E.3-1 (E.3-6 of the ER) indicates changes were made to the cesium iodine release fractions. c. Table E.3-13 indicates changes were made to numerous parameters (e.g., OALARM, RELFRC, PDELAY, PLUDUR, and End of Release).
2Discuss how the changes in Attachment 1 affected these values, or whether additional modifications were made to the MAAP runs. If
additional changes were made, briefly discuss the changes made and the
basis for the changes. FENOC responded that the changes to the MAAP results were primarily the result of re-running MAAP using 'mass' for the initial core inventory instead of 'activity',
as recommended by MAAP Users Group Bulletin - MAAP-FLAASH #68, "MAAP4 Fission Product Input
Parameter Clarification." MAAP-FLAASH #68 states that, "The option
of specifying the inventory by prov iding values of radioactivity for individual isotopes- is not valid because the isotopes that were
selected for the model are the most radioactive but not the most massive, resulting in calculated masses that are substantially less than
the actual masses." The MAAP-FLAASH also states that the impact of using the radioactivity of fission pr oduct inventory for specified nuclides on the distributions of the fissi on products in groups that are substantially under-represented can cause users to be misled, as the
results could be underestimated.
Therefore, as recommended by MAAP-FLAASH #68, FENOC changed the initial core inventory MAAP parameter as follows:
In the August 2010 Environmental Report, MAAP calculations were run using the 'radioactivity' of fission product inventory given in curies for the specified nuclide.
In the July 16, 2012 letter, the MAAP calculations were run using the 'mass' of fission product in ventory given in kilograms.
One additional change to the MAAP was made to ensure completeness by including a third 'fission product release period'
criteria as follows:
In the August 2010 Environmental Report, MAAP calculations defined the fission product release period as the time at which the
release stops from all 12 fission product groups, or the time of
reactor vessel failure + 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, whichever comes first.
In the July 16, 2012 letter, MAAP calculations were revised to define the fission product release period as the time at which all
fission product releases stop, or the time of reactor vessel failure
+ 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, or containment failure + 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.
The cumulative effect of the above changes resulted in changes to
'PLHEAT' (energy of release), the cesium iodine release fractions -
'RELFRC' (release fraction) and 'PLUDUR' (plume duration), and End
of Release.
3The changes in OALARM and PDELAY are very small and are likely due to rounding or re-running the M AAP. For example, OALARM for release category (RC) 2.1 changed fr om 8.35E-02 to 8.34E-02 hours, and PDELAY for RC 1.1 changed from 73.80 to 73.20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />.
There was no further discussion, and the call was concluded.