Letter Sequence Meeting |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
- Supplement, Supplement
Administration
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
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MONTHYEARML0506900352005-03-0303 March 2005
Response to NRC Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Request
ML0515100172005-05-31031 May 2005
Draft RAI on Response to Generic Letter 2004-02
Project stage: Draft RAI
ML0515303042005-06-0303 June 2005
6/3/05, Calvert Cliffs - RAI Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors
Project stage: RAI
ML0520200572005-07-15015 July 2005
Response to NRC Request for Additional Information Re NRC Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Response to RAI
ML0603803582006-02-0909 February 2006
RAI, Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design-Basis Accidents at Pressurized-Water Reactors
Project stage: RAI
ML0609500512006-04-12012 April 2006
Approval of Extension Request for Completion of Corrective Actions in Response to Generic Letter 2004-02
Project stage: Other
ML0618702222006-06-30030 June 2006
Update of Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Basis Accidents at Pressurized Water Reactors
Project stage: Other
ML0626405472006-09-20020 September 2006
Update of Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Other
ML0633407022006-12-18018 December 2006
Unit No.1 - Approval of Extension Request for Completion of Corrective Action in Response to Generic Letter 2004-02
Project stage: Other
ML0712703722007-05-0202 May 2007
Revision to Generic Letter 2004-02 Response
Project stage: Other
ML0734504992007-12-10010 December 2007
Attachment (1) Request for Extension of the Completion Date for Corrective Actions Related to Generic Letter 2004-02
Project stage: Request
ML0734504982007-12-10010 December 2007
Request for Extension for Completion of Activities Related to Generic Letter 2004-02
Project stage: Request
ML0811307392008-04-22022 April 2008
Revision to Generic Letter 2004-02 Response
Project stage: Other
ML0817101052008-06-18018 June 2008
Attachment 1, Request for Extension of the Completion Date for Corrective Actions Related to Generic Letter 2004-02
Project stage: Request
ML0827404892008-09-30030 September 2008
Supplemental Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized Water Reactors
Project stage: Supplement
ML0827404972008-09-30030 September 2008
Attachment 2, ECCS and CS System Figures
Project stage: Other
ML0833003202008-12-0404 December 2008
Request for Additional Information Supplemental Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized Water Reactors-Calvert Cliffs Unit 1 & 2
Project stage: RAI
ML0906807672009-03-0404 March 2009
Request for Additional Information: Supplemental Response to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized Water Reactors
Project stage: Supplement
ML1009500782010-04-12012 April 2010
Request for Additional Information Generic Letter 2004-02 Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2-
Project stage: RAI
ML1011903842010-05-0606 May 2010
Notice of Forthcoming Conference Call with Calvert Cliffs to Discuss Supplemental Responses to Generic Ltr. 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized Water Reactors
Project stage: Request
ML1014708982010-06-0707 June 2010
Summary of Meeting with Calvert Cliffs Nuclear Power Plant, LLC, to Discuss Supplement to Responses to Generic Letter 2004-02
Project stage: Meeting
ML1028701002010-09-30030 September 2010
Draft Responses to NRC Request for Additional Information Related to Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents on Pressurized-Water..
Project stage: Draft Response to RAI
ML1029306502010-10-20020 October 2010
Notice of Forthcoming Conference Call with Duke Energy Carolinas, LLC Regarding McGuire Nuclear Station, Units 1 and 2 and Catawba Nuclear Station, Units 1 and 2,
Project stage: Other
ML1030810242010-11-10010 November 2010
Summary of November 1, 2010, Meeting with Duke to Discuss Responses to Generic Letter (GL) 2004-02 (Tac Nos. MC4673, MC4674, MC4692, and MC4693)
Project stage: Meeting
ML1031903612010-11-10010 November 2010
Response to Request for Additional Information Regarding Generic Letter 2004-02
Project stage: Response to RAI
ML12356A0852012-12-27027 December 2012
January 8, 2013 - Notice of Teleconference with Calvert Cliffs Nuclear Power Plant, LLC
Project stage: Meeting
ML13038A5432013-01-24024 January 2013
Chemical Effects Head Loss Experiment (Chle) Test Protocol for Calvert Cliffs Nuclear Power Plant (CCNPP-CHLE-002, Revision 0d)
Project stage: Request
ML13038A6042013-01-24024 January 2013
PIRT Item Summary
Project stage: Request
ML13038A4872013-01-24024 January 2013
CCNPP-CHLE-001, Revision 0c, Chemical Effects Head Loss Experiment (Chle) Test Plan for Calvert Cliffs Nuclear Power Plant
Project stage: Request
ML13038A5782013-01-24024 January 2013
Chemical Effects Pirt Considerations for Calvert Cliffs Nuclear Power Plant (CCNPP-CHLE-003, Revision 0b)
Project stage: Request
ML13086A5512013-01-24024 January 2013
MC4672 & MC4673 - CCNPP-CHLE-003, Rev 0c Chemical Effects PIRT Considerations Excerpts with Respect to GL2004-02, GSI-191
Project stage: Other
ML13030A3482013-02-0707 February 2013
Summary of Teleconference with Calvert Cliffs Nuclear Power Plant, Units 1 and 2 to Discuss Proposed Risk-Informed Approach to the Resolution of Generic LTR 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Des
Project stage: Meeting
ML13045A1822013-02-19019 February 2013
March 20, 2013, Notice of Forthcoming Teleconference with Calvert Cliffs and Nrc/Nrr Staff to Have Additional Discussions of Licenseess Proposed Path for Resolution of Generic Letter 2004-02
Project stage: Meeting
ML13050A5112013-02-19019 February 2013
MC4672-3 Corrected Notice -Public Meeting on March 20, 2013 Re-GL2004-02
Project stage: Request
ML13086A5502013-03-0101 March 2013
MC4672 & MC4673, CCNPP-CHLE-002, Rev 0e Chemical Effects Experimental Protocol with Respect to GL2004-02, GSI-191
Project stage: Request
ML13088A2202013-03-18018 March 2013
MC4672 & MC4673 - CCNPP-CHLE-005, Rev 1 Chemical Effects Autoclave Experimental Plan with Respect to GL2004-02, GSI-1 91
Project stage: Request
ML13086A5492013-03-20020 March 2013
MC4672 & MC4673 - Licensee Presentation-Category 1, Public Meeting on March 20, 2013 with Respect to GL2004-02, GSI-191
Project stage: Meeting
ML13091A0552013-04-10010 April 2013
Summary of Meeting on March 20, 2013, with Calvert Cliffs Nuclear Power Plant, LLC, to Discuss the Proposed Risk-Informed Approach to the Resolution of Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation D
Project stage: Meeting
ML13149A3942013-05-20020 May 2013
Chemical Effects Head Loss Experiment (Chle) Test Protocol for Calvert Cliffs Nuclear Power Plant, CCNPP-CHLE-002, Revision 0 May 20, 2013
Project stage: Request
ML13149A3992013-05-20020 May 2013
Chemical Effects Autoclave Experiment Test Plan for Calvert Cliffs Nuclear Power Plant CCNPP-CHLE-005, Revision 2, May 20, 2013
Project stage: Request
ML13149A4052013-05-23023 May 2013
Metals BENCH-TOP Autoclave Experiment Test Plan for Calvert Cliffs Nuclear Power Plant, CCNPP-CHLE-006, Revision 0, May 23, 2013
Project stage: Request
ML13148A3962013-05-29029 May 2013
Forthcoming Meeting with Calvert Cliffs Nuclear Power Plant, LLC to Discuss Licensees Proposed Plan for Resolution of GL 2004-02
Project stage: Meeting
ML13179A3132013-07-11011 July 2013
June 12, 2013 Summary of Meeting with Constellation Energy Group, Inc., to Continue Discussions on the Proposed Risk-Informed Approach to the Resolution of Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculati
Project stage: Meeting
ML13224A0942013-08-0606 August 2013
Chemical Effects PIRT Considerations for Calvert Cliffs Nuclear Power Plant, CCNPP-CHLE-003, Revision 0c
Project stage: Request
ML13224A1032013-08-0808 August 2013
CCNPP-CHLE-007, Revision 0c, Coatings Bench-Top Autoclave Experiment Test Plan for Calvert Cliffs Nuclear Power Plant
Project stage: Request
ML13226A0902013-08-14014 August 2013
Notice of Forthcoming Meeting with Constellation Energy Nuclear Group, LLC
Project stage: Meeting
ML13304B4032013-11-0101 November 2013
Notice of Forthcoming Meeting with Constellation Energy Nuclear Group, LLC,
Project stage: Meeting
ML13319A9392013-11-13013 November 2013
Ri GSI-191 November 2013 Meeting with NRC Rev 0
Project stage: Request
ML13310B9292013-12-0606 December 2013
Summary of Meeting with Constellation Energy Group, Inc., to Continue Discussions on the Proposed Risk-Informed Approach to the Resolution of Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During .
Project stage: Meeting
ML14014A0392014-01-29029 January 2014
Summary of Meeting with Constellation Energy Group, Inc., to Continue Discussions on the Proposed Risk-Informed Approach to the Resolution of Generic Letter 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During
Project stage: Meeting
2010-06-07
[Table View] |
Text
CENGSM a joint venture of Constellation
- Energy,
'eDF Calvert Cliffs Chemical Effects in Risk-Inform ed GSI-191 Resolution Third Discussion With NRC Staff March 20, 2013
Agenda
" Introductions
" GSI-191 Resolution Plan
- Detailed review of CCNPP Chemical Effects PIRT Items
- Overview of CCNPP Integrated Chemical Effects Test Program Plan & Test Protocol a Open Items from January 8, 2013 Conference Call
- Schedule for future periodic meetings CENG-2
CCNPP Attendees
" Elliott Flick-General Manager Fleet Engineering
" Tom Konerth - Supervisor Mechanical Design
- Ken Greene - Licensing Engineer
- John Swailes - Project Manager GSI-191
" Craig Sellers - Project Manager RI GSI-191
" Andrew Henni - Lead Design Engineer RI GSI-191
- Steve Kinsey-Chemical Effects
" Josh Wargo - Chemical Effects & Testing
" Robert Peterson - Independent Oversight RI GSI-191 CENG ajoin, ventureo 0D
Primary Objectives of Meeting m Review & Work Towards Agreement on Phenomena Identification and Ranking Table (PIRT) Items m Review Test Protocol m Work Towards Agreement on Plans & Protocols
- Prefer to Divide Time Between PIRT & Protocol Discussion CENG-a join venture of 0~~o~w 4
CCNPP GSI-191 Resolution Plan SECY-12-0093 Option 2 Plant Modifications Aluminum Minimization
" Mineral Wool & Other Insulation Replacement
" Scissor Lift Removal NPSH Assurance
" Refueling Cavity Drain Enlargement
" Recirculation Suction Header Temperature Instrumentation Other Operational Considerations
" Secure Containment Sprays
- Reduce Recirculation Flow
" Additional Input to PAMs for Facilitate Post-RAS Operation
" Large Scale Fiber Insulation Replacement CENG.
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CCNPP GSI-191 Resolution Plan (continued)
SECY-12-0093 Option 2
" Testing
- Integrated Chemical Effects Testing
- Strainer Bypass (Penetration) Testing
- Strainer Head Loss Testing, as Required
" Industry Activities Partner in STP RI GSI-191 Resolution Project Participant in PWROG Comprehensive Analysis and Test Programs OENG-
CCNPP Chemical Effects PIRT Items
[Calvert Cliffs PIRT Item Summary]
- 1. Addressed in Tests similar to STP NRC staff agreed with STP approach.
Discussion as Needed.
- 2. Addressed in Tests similar to STP NRC staff has yet to agree with STP approach.
Require Detailed Discussion with the NRC Staff.
- 3.
PIRT items Not Planning to Address in Tests Require Detailed Discussion with the NRC Staff.
- 4. Resolved PIRT NRC has previously agreed.
May not be addressed in testing. Discussion as Needed.
CENG-
Page-by-Page Review of PIRT Report
[CCN PP-CH LE-003]
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&ma imsbe address"d in realisuc cheimical affcti tsmag "Itormicrato a momfrissuets
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Items,~~~e~ F~WM Pm*~P=frein 3.e underliugtCoemalnmim Peel dleistry 1.1 RCM cooLman cbemanirtz coudfes at break 1.3 By*m som p
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M.4 Coalm simy COi s*x*
1S EC c*
dboron 2.0 Eadlaleica Coesidraftems 2.Radiological effecis. corrosion reo Chanps 2.3 fdyirolisl 2.4 CouversiofNztmfhNOi 2.5 AdditmWn debrits bed chmniad racioans 30 ysl C*l mmicaLs aed eleocal Debnts Sea.ce Tesns 3.1 Crud release 3.2 Jetmplagemet 3.3 Debris asixpm'del/liber rateo 3.4 mmects oftdissolived sillca froms RCS ad RWIST h
3.5 Coautminmemtsaytrospert A.6 hu" debris dissol*utio 3.7 Subsuujd source ormsi lead (Pb) shielding 3.2 Sehmwjpd source tarms copper (Cu) 3.9 Couceem at" a amo &ng MO1 A~icytg efets 3.1 Advanced metalli corrosion undaersading 3.12 Simbmmariit so-c t-m-biological grwt.n debris beds 3.13 Eaacter Cair fuel deposition spaling x
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A-ircamclafe 4.0 Soldpcies ftwciotttmm 4.1 P
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ec oas mdmati 4.3 Reactor core: -edpton precipi md
.4 Particulate siten s shus 4.5 Copreclptanion L.0 AMlmeratean and Sottia diamical Elfects 5.1 Inargmani gomneration 5.2 Deposition mnd seeding I x j4 5.3 Q~uescaut settling ofyremqutate SA4 Transpoct pbenme precipatad-ionlcpred v4 6.0 Orgamics and Coating 6.1 BA reak omily to Orgmmc sources 6.2 Oramc agglollmerationt t
6.3 Organic complertin-6.4 Co*-atnugdsouonadlchg 7A Clenaical Effects an Domustmam Systemn Performance 7.1 ECCS pump: seal abrasion and ewosion/corrosion 7.2 Beat exchangert dapositim nd cogging I
7.3 Reactor coam; fuel deposition and precipitaton 7A4 Reactor core: diminished beat tanssiir 7.5 Reactor cr:blocking offkow passages 7.6 Reactor core: particulate, settling CENG.
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Overview of Chemical Effects Test Program
" Objective
- Identify Chemical Effects Head Loss on "Detector" Debris Bed Determine Time and/or Temperature at Which Chemical Effects Head Loss Occurs
" Approach Long-Term (-~30 Day) Integrated Chemical Effects Tests
- Circulate Flow Through Repeatable "Detector" Debris Bed
- Similar to STP CHLE Test Program CENG.
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Overview of Test Plan CCNPP-CHLE-O01
" Begin with Design Basis Tests DEGB LBLOCA Conditions
- Multiple Plant Configurations
" First Stage Aluminum Removal
" Second Stage Insulation Replacement
" Potential Negligible Chemical Effects Outcome Discuss Regulatory Response
- Medium & Small Breaks
- Consistent with STP RI Approach CENGt
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Overview of Integrated Test Protocol CCNPP-CHLE-002
- Use CCNPP-Specific Chemistry Conditions
- Use CCNPP-Specific Materials Insulation Fire Barrier Material Coatings Lead Blanket Shielding Exposed Concrete Metallic Materials
° Aluminum
" Galvanized Steel
" Copper
- Lead CENG-a joint venture of 0~
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Overview of Integrated Test Protocol (cont.)
" Simulate Bounding 30-Day Sump Temperature Considering Pressurized Facility for >212°F Planning Autoclave Tests to Investigate Impact of Short Duration High Temperature Conditions
- Sump Chemistry & Scaled Materials
- Compare Relative Elemental Concentrations in Fluid
" Stepwise Reduce Temperature Day 31
- Developing Basis for Temperature Plateau Durations CENGI.
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Detector Debris Bed m Developed in late 2008
- Used for Earlier CCNPP Testing
- Reviewed with NRC n Also used in Indian Point & Vogtle Testing
" Very Sensitive
" Composition:
Sustne untt (ngrm NUKON Silicon carbide 16 +/- 0.1 80 +/- 0.1 CENG-a joint venture of-0 onW&Lo
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Detector Debris Bed Repeatability
- Repeatability Demonstrated in Multiple Test Programs
- Calvert Cliffs Indian Point
- Vogtle
t I
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10-ppm Al
'4 0
1.5 r75-ppm Al 0.5 Multiple Temperatures
-ppm AJ and Flow Rates 0
I I
0 10 20 30 40 50 60 70 80 Time [hr]
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Detector Debris Bed Sensitivity
Surrogate NAS 8
Temperature 0
- 135F OF
- 0.028 ft/sec velocity I
1ppm NAS 4
80 WCAP chemical debris 2
added to loop 60
- >40x Increase in Debris 0
40 Bed DP 0
1 2
Time [hr]
CENG
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Page by Page Review of Test Protocol CCNPP-CHLE-002 I
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4 I
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2 1
3 1
4 1
5 1
4 1
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a ISTOP THINK ACT AND REVIEW REACTION CHA8-iE INTIAL S(JLuJTIoN PREPARA*ION CHAM'BER A
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I CI(YAL4 EFFECTS I fAO LOSS EXPEDIENT ICIHL1 KAY 1 F
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2 1
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7 1
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Possible Results
" Large Chemical Effects Head Loss Not Anticipated
- <140 OF
" Small Chemical Effects Head Loss Possible
- <140 OF
" Negligible Chemical Effects Head Loss Possible CENG a joint venture of 0
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Open Items-January 8, 2013 Call
- Piping Less than 2" NPS 1" & /" DP Instrument Piping/Tubing 3/4" Pressure & Level Instrument Piping/Tubing 3/4" Reactor Head Vent Piping
- Debris Transport NRC concerned that STP Methods not Approved CCNPP not considering Time-Dependent Transport for Strainer Head Loss or Chemical Effects May use Time-Dependent Transport for In-Vessel Effects
- 100% Particulate Latent Debris
- Current Approach is 85% Particulate 15% Fiber
- Consistent with NEI 04-07 hiGENGu
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Schedule for Future Periodic Meeting
" CCNPP-Specific Meetings
- Request Monthly Until Testing Complete
- Quarterly After Testing Complete
" STP-Specific Meetings CCNPP Will Participate
- STP Participant-Specific Meetings CCNPP Will Participate CENG.
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