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Category:Memoranda
MONTHYEARML22333B0922022-12-21021 December 2022
FY22 Nmss/Duwp Operating Experience Report
ML21060B0202021-03-31031 March 2021
Memo to File: Final Environmental Assessment and Finding of No Significant Impact for Initial and Updated Decommissioning Funding Plans for Crystal River ISFSI
ML21060B0212021-03-31031 March 2021
Final Environmental Assessment and Finding of No Significant Impact for Initial and Updated Decommissioning Funding Plans for Crystal River ISFSI
ML19323F8262019-11-20020 November 2019
NEIMA Meeting Summary
ML19183A4332019-07-0909 July 2019
Memo to Frederick Miller, Chief (Acting), Financial Projects Branch, Request for Technical Assistance on a License Transfer Application and Associated Conforming Administrative License Amendment for Crystal River Unit 3 Nuclear Generating P
ML18037A5242018-02-0606 February 2018
CR_3 ISFSI PSP Rev 1 Notice of Safeguards Memo
ML17271A0532017-09-29029 September 2017
2017 Summary of Annual Decommissioning Funding Status Reports for Reactors in Decommissioning
ML17143A0182017-05-28028 May 2017
Staff Review of Crystal River, Unit 3, Physical Security Plan Rev. 3 (Sles NS114954) for Verification of ASM Incorporation (EA-16-005)
ML16356A2182017-01-0909 January 2017
Memo to Beardsley - Work Request for Crystal River Amendment to Remove the Existing Cyber Security License Condition from the Facility Operating License
ML16176A3392016-10-28028 October 2016
Decommissioning Lessons Learned Report and Transmittal Memorandum
ML16224A7822016-08-16016 August 2016
Memo to Anderson, Request for Technical Assistance on License Amendment Request to Approve the Crystal River Unit 3 ISFSI Only Physical Security Plan
ML16201A1352016-08-12012 August 2016
Safety Evaluation Input for Independent Spent Fuel Storage Installation Only Emergency Plan
ML16173A0652016-06-23023 June 2016
Work Request to NSIR, Crystal River ISFSI Only Security Plan
ML16161A5572016-06-16016 June 2016
Memo to Anderson, Work Request for Crystal River ISFSI Only Emergency Plan
ML16160A2782016-06-16016 June 2016
Request for Publication in Biweekly Federal Register Notice - Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing (Contro
ML16111B2622016-04-25025 April 2016
Memo from B. Watson (NRC) to J. Andersen (NRC) Re: Request for Assistance for Crystal River Revision to the Security Plan Implementation Schedule Milestone 8
ML15258A4812015-09-16016 September 2015
Request for Technical Assistance on License Amendment Request for Proposed Revision to the Crystal River Unit 3 Permanently Defueled Emergency Plan (TAC No. L53072)
ML13225A1992013-08-13013 August 2013
Correction - 08/29/13 Notice of Forthcoming Meeting with Duke Energy Florida: Crystal River, Unit 3 Nuclear Generating Plant Decommissioning Submittals
ML13099A3012013-04-0909 April 2013
Termination of Resident Inspection Staffing for Crystal River Nuclear Plant Following Certification of Cessation of Power Operations and Permanent Removal of Fuel from the Reactor Vessel
ML13016A1152013-01-16016 January 2013
NRC Oversight of Crystal River, Unit 3, During Extended Shutdown
ML12300A4032012-10-26026 October 2012
11/8/2012 Meeting Notice with Duke Energy to Discuss NRC Order on Mitigation Strategies for Beyond-design-Basis External Events
ML12285A3122012-10-15015 October 2012
11/1/12 Forthcoming Meeting Via Conference Call with Duke Energy, Inc. Representing Florida Power Corporate Concerning Generic Letter 2004-02 and Draft Proposed Strainer Fiber Bypass Test Plan for Crystal River
ML12284A4612012-10-12012 October 2012
Forthcoming Meeting Notice with Duke Energy to Discuss NRC Order on Mitigation Strategies for Beyond-Design-Basis External Events
ML12270A1482012-09-24024 September 2012
Memo Request for Temporary Exception to the Resident Inspector Staffing Policy for Crystal River Nuclear Plant
ML11286A1592011-10-13013 October 2011
Memo: NRC Oversight of Crystal River Unit 3 During Extended Shutdown
ML1125905462011-09-16016 September 2011
Inspection Plan Memo to Fred Brown During Extended Shutdown
ML11187A1902011-07-18018 July 2011
Summary of Public Meetings Conducted to Discuss the Dseis Related to the Review of the Crystal River 3 Nuclear Generating Plant License Renewal Application
ML11153A1652011-06-0909 June 2011
06/28/11 Notice of Forthcoming Meeting to Discuss the Draft Supplemental Environmental Impact Statement for the License Renewal of Crystal River Unit 3 Nuclear Generating Plant
ML1107405412011-03-31031 March 2011
4/21/11 Notice of Forthcoming Meeting with Progress Energy, Crystal River, Unit 3, to Discuss Licensee'S Overall Plans Associated with an EPU Application
ML1108406312011-03-29029 March 2011
Notice of Forthcoming Pre-Application Meeting with Carolina Power & Light Co. and Florida Power Corp., Brunswick Units 1 & 2, Crystal River Unit 3, and H.B. Robinson Unit 2, to Discuss Transition to the Requirements of National Fire..
ML1104200212011-03-21021 March 2011
Summary of Telephone Conference Call Held on 11/22/10, Between the USNRC and FPC, Concerning Draft Request for Additional Information Related to the Crystal River Unit 3 Nuclear Generating Plant License Renewal Application
ML1034706512010-12-15015 December 2010
Federal Register Notice Regarding the ACRS Subcommittee Meeting on Plant License Renewal (Crystal River), January 12, 2011
ML1027404282010-10-0101 October 2010
Notice of Forthcoming Meeting with Florida Power Corporation (Progress Energy) to Discuss the Crystal River Proposed License Amendment Request to Support Implementation of the Independent Spent Fuel Storage Facility (ISFSI) Project
ML1022302872010-08-18018 August 2010
Memo Approval of Reactor Oversight Program Reduced Sample Size for Crystal River Unit 3 in Calender Year 2010
ML1021703312010-08-0505 August 2010
Memo - Completion of ROP Baseline Inspections for Extended Shutdown of Crystal River in Calendar Yr. 2010
ML1016601412010-06-17017 June 2010
Notice of Forthcoming Meeting with Progress Energy to Discuss Licensee'S Plans for Repairing the Containment at Crystal River, Unit 3
ML1000900502010-03-0101 March 2010
Summary of Telephone Conference Call Held on November 11, 2009, Between the U.S. NRC and Florida Power Corporation, Concerning a Draft RAI and the Applicant'S Response to a RAI Pertaining to the Crystal River Unit 3 Nuclear Generating Plant
ML1003200362010-02-19019 February 2010
Summary of Telephone Conference Call Held on December 23, 2009, Between the U.S. NRC and Florida Power Corporation, Concerning Applicant'S Response to a RAI Pertaining to the Crystal River Unit 3 Nuclear Generating Plant License Renewal..
ML1001415932010-02-16016 February 2010
Summary of Tele Conference Call Held on 12/1/09, Btw the USNRC and Florida Power Corp, Concerning Licensee Response to a RAI Pertaining to the Crystal River Unit 3 Nuclear Generating Plant License Renewal Application
ML1000703172010-02-0202 February 2010
Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Florida Power Corporation, Concerning the Applicant'S Response to a Request for Additional Information Pertaining to the Crystal River, Unit 3
ML0934513952010-01-0404 January 2010
Summary of Telephone Conference Call on 10/29/09, Between the USNRC and Florida Power Corporation, Concerning Licensee Response to a Request for Information Related to the Crystal River Unit 3 Nuclear Generating Plant License Renewal Applic
ML1007503972009-10-13013 October 2009
Email from M. Franke to M. Sykes, Subj: FW: Crystal River SI Charter
ML0928608132009-10-13013 October 2009
Special Inspection Charter to Evaluate Crystal River Containment Building
ML1007503992009-10-13013 October 2009
Email from C. Morrison to L. Reyes, Et Al, Subj: Special Inspection Charter to Evaluate CR Containment Bldg
ML0807400842008-03-14014 March 2008
Draft Regulatory Guide for Comment
ML0807102572008-03-11011 March 2008
Request for Additional Information - Weld Overlay of the Decay Heat Drop Line Relief Request #08-001-RR, Revision 0
ML0733711662007-12-0303 December 2007
Notice of Meeting with Progress Energy & Duke Energy Regarding Fire Probabilistic Risk Assessment for the Pilot Plants Transitioning to the National Fire Protection Association Standard NFPA 805
ML0723500152007-08-23023 August 2007
Notice of Meeting with Progress Energy Florida to Discuss the Status of the Power Uprates at Crystal River, Unit 3
ML0707500422007-03-16016 March 2007
03/23/07 Meeting Cancellation - Crystal River Unit 3, Meeting with Progress Energy Florida Notice Plans for Power Uprate, License Renewal, Steam Generator Replacement, and Installation of an Independent Spent Fuel Storage Facility
ML0627700652006-10-0505 October 2006
Forthcoming Meeting with Florida Power Corporation (Progress Energy) to Discuss Pre-Application Review of Missile Shield Amendment for Crystal River Unit 3
2022-12-21
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June 29, 2005 MEMORANDUM TO: James Lyons, Director Division of Systems Safety and Analysis THRU: John N. Hannon, Chief Plant Systems Branch Division of Systems Safety and Analysis THRU: David L. Solorio, Chief Balance of Plant and Containment Systems Section Plant Systems Branch Division of Systems Safety and Analysis FROM: Ralph Architzel, Senior Reactor Systems Engineer /RA JLehning for/
Balance of Plant and Containment Systems Section Plant Systems Branch Division of Systems Safety and Analysis
SUBJECT:
REPORT ON RESULTS OF STAFF PILOT PLANT AUDIT- CRYSTAL RIVER ANALYSES REQUIRED FOR THE RESPONSE TO GENERIC LETTER 2004-02 AND GSI-191 RESOLUTION Generic Letter (GL) 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors, requested that all PWR licensees (1) evaluate the adequacy of the emergency sump recirculation function with respect to potentially adverse effects associated with post-accident debris, and (2) implement any plant modifications the evaluation determined to be necessary. To provide assurance that licensees sump performance evaluations and any subsequent modifications are performed with adequate quality, in addition to reviewing licensees generic letter responses, the staff plans to perform sample audits.
Crystal River, Unit 3 (CR3), conducted an evaluation of recirculation sump performance ahead of the schedule requested by GL 2004-02 and volunteered to be a pilot plant for an NRC staff audit. The staff has completed an audit of the CR3 evaluation. The report containing the audits results is attached to this memorandum. In addition to providing the CR3 licensee feedback on its sump performance evaluation, another primary purpose of the staffs audit report is to serve as a vehicle to inform and potentially improve other licensees September 1, 2005, responses to GL 2004-02.
CONTACT: Ralph Architzel, NRR/DSSA/SPLB 301-415-2804
J. Lyons 2 The staffs audit report summarizes the plant modifications planned by the licensee to improve recirculation sump performance, which include:
- Increasing the strainer area from 86 ft2 to approximately 1140 ft2
- Reducing strainer opening size from 1/4" x 1/4" square mesh to 1/8" diameter holes
- Optimizing flow to the sump with a flow distributor, debris interceptor, improved scupper screens, and curbs for the purpose of inducing sedimentation and entrapment of debris
- Installing strainer differential pressure instrumentation to monitor and react to debris accumulation prior to signs of pump performance degradation
- Expanding the trash rack area from 55 ft2 of horizontal surface to 100 ft2 of horizontal plus 25 ft2 of vertical surface to minimize the potential to completely block flow to the strainer
- Installing a trash rack over the fuel transfer canal drain to minimize the potential for holdup of reactor building spray inventory within the refueling canal
- Installing bellmouth flanges to minimize the entrance losses for the flow entering the decay heat suction nozzles in the sump The staffs audit report provides detailed feedback to the licensee in each section of the licensees sump performance evaluation (e.g., debris generation, debris transport, head loss),
identifying areas that were adequately addressed as well as areas where further analysis or justification may be warranted. The audit report includes a review of the design of the licensees planned sump modification, and also reviews the licensees evaluation of upstream and downstream blockage and the other post-accident debris effects identified in GL 2004-02.
The audit report concludes by rating each section of the licensees sump performance evaluation into one of three categories: (1) robust, (2) partially complete with an approach that seems reasonable, and (3) limited information.
Attachment:
Pilot Plant Audit Report- Crystal River Analyses Required for the Response to Generic Letter 2004-02 and GSI-191 Resolution
J. Lyons 2 The staffs audit report summarizes the plant modifications planned by the licensee to improve recirculation sump performance, which include:
- Increasing the strainer area from 86 ft2 to approximately 1140 ft2
- Reducing strainer opening size from 1/4" x 1/4" square mesh to 1/8" diameter holes
- Optimizing flow to the sump with a flow distributor, debris interceptor, improved scupper screens, and curbs for the purpose of inducing sedimentation and entrapment of debris
- Installing strainer differential pressure instrumentation to monitor and react to debris accumulation prior to signs of pump performance degradation
- Expanding the trash rack area from 55 ft2 of horizontal surface to 100 ft2 of horizontal plus 25 ft2 of vertical surface to minimize the potential to completely block flow to the strainer
- Installing a trash rack over the fuel transfer canal drain to minimize the potential for holdup of reactor building spray inventory within the refueling canal
- Installing bellmouth flanges to minimize the entrance losses for the flow entering the decay heat suction nozzles in the sump The staffs audit report provides detailed feedback to the licensee in each section of the licensees sump performance evaluation (e.g., debris generation, debris transport, head loss),
identifying areas that were adequately addressed as well as areas where further analysis or justification may be warranted. The audit report includes a review of the design of the licensees planned sump modification, and also reviews the licensees evaluation of upstream and downstream blockage and the other post-accident debris effects identified in GL 2004-02.
The audit report concludes by rating each section of the licensees sump performance evaluation into one of three categories: (1) robust, (2) partially complete with an approach that seems reasonable, and (3) limited information.
Attachment:
Pilot Plant Audit Report- Crystal River Analyses Required for the Response to Generic Letter 2004-02 and GSI-191 Resolution DISTRIBUTION: ADAMS SPLB R/F RArchitzel JLehning DSolorio JHannon JLyons THafera MKowal MYoder SUnikewicz HWaggage SLu RReyes PKlein RLobel BMozafari LWhitney LLund EImbro RKaras ADAMS PACKAGE #: ML051660157 MEMO: ML251660147 ATTACHMENTS ML051530399 (Audit Report) ML051660078 (Report Appendices)NRR-106 OFFICE SPLB:DSSA:NRR SC:SPLB:DSSA BC:SPLB:DSSA BC:EMEB:DE NAME Rarchitzel /RA by DSolorio JHannon /RA by EImbro JLehning for/ SWeerakkody for/
DATE 06/ 29 /05 06/ 27 /05 06/ 29 /05 06/ 29 /05 OFFICE DLPM:NRR SC:EMEB:DE ASC:EMEB:DE NAME BMozafari LLund RKaras DATE 06/ 29 /05 06/ 29 /05 06/ 29 /05 OFFICIAL RECORD COPY
