Letter Sequence RAI |
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MONTHYEARML0603801992006-02-0909 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
ML0729706052007-10-24024 October 2007
Exigent License Amendment Request Re Alternative Containment Analysis Methodology Supporting Information - Gothic Model Input Files
Project stage: Other
ML0731905532007-11-15015 November 2007
North Anna, Units 1 and 2, and Surry, Units 1& 2, Request for Extension of Completion Dates for Corrective Actions Regarding NRC Generic Letter 2004-02
Project stage: Request
ML0734505942007-12-13013 December 2007
Approval of Extension of Completion Dates for Corrective Actions of Generic Letter 2004-02
Project stage: Other
ML0806505622008-02-29029 February 2008
Supplemental Response to NRC GL-2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Request
ML0806503142008-02-29029 February 2008
Kewaunee, NRC Generic Letter 2004-02 Supplemental Response, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Request
ML0806505632008-02-29029 February 2008
Supplemental Response to NRC GL-04-002, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors
Project stage: Request
ML0814306122008-05-22022 May 2008
Units 1 & 2 - NRC Generic Letter (GL) 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-water Reactors Request for Interim.
Project stage: Request
ML0814905722008-05-29029 May 2008
Request for Extension of Completion Dates for Generic Letter 2004-02 Corrective Actions
Project stage: Other
ML0818302472008-07-0101 July 2008
Request for Extension of Completion Dates for Generic Letter 2004-02 Corrective Actions
Project stage: Other
ML0832304692008-12-17017 December 2008
Request for Additional Information, GL 2004-02
Project stage: RAI
ML1000700682010-02-0404 February 2010
Request for Additional Information Regarding Generic Letter 2004-02
Project stage: RAI
ML1009804152010-04-0808 April 2010
Draft Millstone GL2004-02 Supplemental Responses to Support Public Teleconference on 4/08
Project stage: Request
ML1011705752010-05-0505 May 2010
Summary of Teleconference with DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
ML1012506232010-05-24024 May 2010
Summary of Meeting with Dominion Nuclear Connecticut, Inc. (DNC) to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
ML1013700502010-05-25025 May 2010
Forthcoming Conference Call with Dominion Nuclear Connecticut, Inc. to Discuss Millstone Power Station, Unit Nos. 2 and 3 Generic Letter 2004-02 Supplemental Responses
Project stage: Other
ML1015906482010-06-30030 June 2010
Summary of Meeting with Dominion Nuclear Connecticut, Inc., (DNC) to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
ML1018005132010-07-0101 July 2010
Notice of Forthcoming Public Meeting with Dominion Nuclear Connecticut, Inc. to Discuss Millstone Power Station, Unit No. 3 Generic Letter 2004-02 Supplemental Response
Project stage: Meeting
ML1019502842010-07-14014 July 2010
Notice of Forthcoming Public Teleconference with Dominion Nuclear Connecticut, Inc. to Discuss Millstone Power Station, Unit No. 3 Generic Letter 2004-02 Supplemental Response
Project stage: Meeting
ML1020102612010-07-29029 July 2010
Summary of July 13, 2010, Meeting with DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
ML1022201102010-09-14014 September 2010
July 28, 2010, Summary of Teleconference with DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
ML1034807622011-01-12012 January 2011
November 8, 2010 Summary of Teleconference W/ DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
Project stage: RAI
2010-02-04
[Table View] |
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Category:Meeting Summary
MONTHYEARML24150A1542024-05-29029 May 2024
5/16/2024, Annual Assessment Meeting for Millstone Power Station - Meeting Summary
ML23297A2312023-10-24024 October 2023
E-mail to File - Summary of September 13, 2023, Meeting with Dominion to Discuss Proposed LAR to Support Cycle Reloads Using Framatome Gaia Fuel
ML23080A1902023-03-21021 March 2023
Annual Assessment Meeting for Millstone Power Station - Meeting Summary
ML22272A0332022-09-29029 September 2022
Memo E-mail to File - Summary of August 29, 2022, Meeting with Dominion to Discuss Proposed Alternative Request Post-peening follow-up Volumetric Exam of RPV Head Penetration Nozzle
ML22252A1772022-09-0909 September 2022
Memo E-mail to File - Summary of August 9, 2022, Meeting with Dominion to Discuss Proposed Alternative Reqeust Recirculation Spray Pump Flow Testing (EPID L:2022-LRM-0057)
ML22130A1702022-05-20020 May 2022
Summary of April 21, 2022, Public Meeting to Discuss Potential Emergency Preparedness License Amendment Request
ML22131A0702022-05-12012 May 2022
Summary of Conference Call Regarding the Spring 2022 Steam Generator Tube Inspections
ML22102A1642022-04-12012 April 2022
Annual Assessment Meeting for Millstone Power Station - Meeting Summary
ML21091A0522021-04-0101 April 2021
3/18/21 - Annual Assessment Meeting for Millstone Power Station - Meeting Summary
ML21027A0232021-01-28028 January 2021
Summary of January 26, 2021 Closed Meeting with Dominion Energy Regarding Performance of Force on Force Exercises in a Pandemic Environment
ML20272A3112020-09-28028 September 2020
Memo E-mail to File - Summary of August 19, 2020, Meeting with Dominion to Discuss Proposed Exemption Request Biennial Emergency Preparedness Exercise Date Change
ML20210M4232020-08-0505 August 2020
Summary of June 29, 2020, Pre-Submittal Teleconference with Dominion Energy Nuclear Connecticut, Inc. Proposed License Amendment Request for Measurement Uncertainty Recapture Power Uprate
ML20176A5992020-06-29029 June 2020
Summary of May 26, 2020, Pre-Submittal Teleconference with Dominion Energy Nuclear Connecticut, Inc. Proposed Alternative Request for Steam Generator Weld Examinations
ML20121A1082020-04-30030 April 2020
Annual Assessment Meeting for Millstone Power Station - Meeting Summary
ML19194A0012019-07-12012 July 2019
Memo E-mail to File - Summary of June 3, 2019, Meeting with Dominion to Discuss Proposed License Amendment Request to Extend Integrated Leak Rate Test Interval
ML19159A0012019-06-0707 June 2019
Memo E-mail to File - Summary of May 9, 2019, Meeting with Dominion to Discuss Proposed License Amendment Request Revised TS Limits for Coolant Activity
ML19144A1292019-05-30030 May 2019
Summary of November 20, 2018, Pre Application Meeting with Dominion Energy Regarding the Planned License Amendment Request to Revise Emergency Action Levels
ML19046A1502019-02-15015 February 2019
Memo E-mail to File - Summary of January 22, 2019, Meeting with Dominion to Discuss Proposed Alternative IR-3-39 Fillet Welds
ML18341A0982018-12-0707 December 2018
Memo E-mail to File - Summary of November 8, 2018, Meeting with Dominion to Discuss Proposed LAR - 10 CFR 50.69 Risk-Informed Approach
ML18113A2672018-04-25025 April 2018
Summary of Meeting with Dominion Energy Nuclear Connecticut, Inc. on Planned Relief Request Submittal Concerning the In-Service Testing of the C Charging Pump
ML18101A0422018-04-10010 April 2018
Summary of Annual Assessment Meeting for Millstone Power Station Held on 4/4/18
ML17274A0002017-09-29029 September 2017
Memo E-mail to File - Summary of August 31, 2017, Meeting with Dominion to Discuss Proposed License Amendment, Revised Spent Fuel Pool Criticality Safety Analysis
ML17227A0052017-08-15015 August 2017
Memo E-mail to File - Summary of July 18, 2017, Meeting with Dominion to Discuss Proposed License Amendment Request, TS 3.8.1.1, AC Sources Operating
ML17096A4512017-04-0505 April 2017
3/22/2017 - Summary of Annual Assessment Meeting for Millstone Power Station
ML16160A0282016-06-0808 June 2016
Teleconference Memo to File - Millstone Power Station, Unit 2, Summary of May 3, 2016 Pre-submittal Teleconference with Dominion Nuclear Connecticut
ML16102A0732016-04-0808 April 2016
3/29/2016 Summary of Public Annual Assessment Meeting for Millstone Power Station
ML16035A4802016-02-12012 February 2016
Jsc Meeting Summary Attachment
ML16004A4732016-01-0404 January 2016
Teleconference Memo to File: Summary of December 17, 2015 - Pre-submittal Call with the NRC Related to Confirmatory Item IV.5
ML16004A4722016-01-0404 January 2016
Teleconference Memo to File: Summary of December 10, 2015 - Pre-submittal Call with the NRC Related to Confirmatory Item IV.2
ML15316A2522015-11-19019 November 2015
October 20, 2015, Millstone, Units 2 and 3, Surry, Units 1 and 2, North Anna, Units 1 and 2 - Summary of Pre-submittal Conference Call Regarding Emergency Action Level Scheme Changes
ML15173A0002015-06-23023 June 2015
Summary of Conference Call Regarding the Fall 2014 Steam Generator Tube Inspections
ML15162A8662015-06-16016 June 2015
Summary of May 21, 2015 Meeting with Dominion Nuclear Connecticut, Inc. to Discuss Pre-Submittal of License Amendment Request for Removal of Severe Line Outage Detection at Millstone Power Station
ML15128A3872015-05-0808 May 2015
4/14/2015 Summary of Annual Assessment Meeting for Millstone Power Station
ML14210A0212014-08-0808 August 2014
June 25, 2014, Summary of Category 1 Public Meeting with Dominion Nuclear to Discuss Seismic Hazard Reevaluations Associated with Implementation of Japan Lessons-Learned Near-Term Task Force Recommendation 2.1
ML14093A7182014-04-0303 April 2014
Summary of Annual Assessment Meeting for Millstone Power Station on 3/31/2014
ML14029A6532014-01-29029 January 2014
2013 Annual Summary of the Green Mountain Power Special Nuclear Committee
ML13207A2592013-07-30030 July 2013
7/17/2013 - Summary of Meeting with Dominion Nuclear Connecticut, Inc. and Areva to Discuss Upgrade to Areva Standard CE14 Htp Fuel Assembly.7/17/2013 - Summary of Meeting with Dominion Nuclear Connecticut, Inc. and Areva to Discuss Upgrade
ML13127A0832013-05-0707 May 2013
4/9/13 - Summary of Annual Assessment Meeting with Millstone Power Station
ML12115A1072012-04-23023 April 2012
Summary of Public Meeting to Discuss Annual Assessment of Safety Performance at Milstone for 2011
ML12115A1162012-04-23023 April 2012
4/19/2012 - Millstone Power Station/Neac 2011 Annual Assessment Meeting Summary
ML1205803622012-03-12012 March 2012
2/15/2012 - Summary of Pre-Application Meeting with Dominion Nuclear Connecticut, Inc., to Discuss a Proposed Millstone Power Station, Unit No. 2, License Amendment Request Concerning Spent Fuel Pool Criticality Re-Analysis
ML11292A1612011-10-20020 October 2011
Summary of Meeting with Beyond Nuclear Regarding Their 10 CFR 2.206 Petition to Suspend Operating Licenses of General Electric Mark I Boiling Water Reactors
ML1118806442011-07-0707 July 2011
Summary of the Millstone 2011 Annual Assessment Meeting with the Connecticut Nuclear Energy Advisory Council (Neac)
ML1118805312011-07-0707 July 2011
Annual Assessment Meeting Summary
ML11166A1342011-06-22022 June 2011
Meeting Summary with the Beyond Nuclear Petitioners Regarding Their 2.206 Petition to Suspend Operating Licenses (Ols) of General Electric (GE) Boiling Water Reactors (Bwrs) Mark I (Bwrs)
ML1106907942011-05-10010 May 2011
Summary of Meeting with Dominion Nuclear Connecticut, Inc. Discussing Millstone Power Station, Units 2 and 3 Licensing Activities
ML1034807622011-01-12012 January 2011
November 8, 2010 Summary of Teleconference W/ DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
ML1022201102010-09-14014 September 2010
July 28, 2010, Summary of Teleconference with DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
ML1020102612010-07-29029 July 2010
Summary of July 13, 2010, Meeting with DNC to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
ML1015906482010-06-30030 June 2010
Summary of Meeting with Dominion Nuclear Connecticut, Inc., (DNC) to Discuss Generic Letter 2004-02 Supplemental Response Request for Additional Information
2024-05-29
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 14, 2010 LICENSEE: Dominion Nuclear Connecticut, Inc. (DNC)
FACILITY: Millstone Power Station, Unit NO.3 SUB~IECT:
SUMMARY
OF JULY 28, 2010, TELECONFERENCE WITH DNC TO DISCUSS GENERIC LETTER 2004-02 SUPPLEMENTAL RESPONSE REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MC4695)
On July 28, 2010, a Category 1 public teleconference was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Dominion Nuclear Connecticut, Inc.
(DNC). The purpose of the meeting was to discuss remaining issues identified during NRC staff review of the Millstone Power Station, Unit NO.3 (MPS3) Generic Letter (GL) 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors:' supplemental response. Specifically, the meeting focused on the NRC's request for additional information (RAI) regarding the head loss and vortexing response.
The meeting was a follow-up to the April 8, April 20, and June 7,2010, Category 1 public teleconferences on Millstone Power Station, Unit Nos. 2 & 3 GL 2004-02 supplemental response and to the July 13, 2010, Category 1 public meeting on MPS3 GL 2004-02 supplemental response. A summary of the April 8, April 20, and June 7, 2010, teleconferences can be found at Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML101170575, ML101250623, and ML101590648, respectively. A summary of the July 13, 2010, public meeting can be found at ADAMS Accession No. ML102010261. The handouts from the July 13, 2010, public meeting can be found at ADAMS Accession No. ML101950505.
This meeting was intended to give DNC the opportunity to discuss potential paths forward for responding to the NRC staffs RAI dated February 4, 2010 (ADAMS Accession No. ML100070068), specifically MPS3's RAI NO.6. The licensee provided draft responses to the NRC staffs RAI dated April 8, 2010 (ADAMS Accession No. ML100980415). The licensee provided a revised copy of the draft responses based on discussions from the April 8, and April 20, 2010, teleconferences (ADAMS Accession No. ML101530556).
The NRC staff provided feedback on potential paths to resolve the remaining head loss and vortexing concern. The following potential approaches were discussed:
- 1. Perform a chemical test in the Rig-89 using a more prototypical debris bed.
- 2. Perform a chemical test in the Rig-33 at a pool depth representative of MPS3.
- 3. Demonstrate the Rig-33 test is non-representative of MPS3 through further testing (e.g.
run the Rig-89 test, lowering the water level to observe change in head loss, to demonstrate the impact of the water level on the test results).
The NRC staff also provided feedback on a holistic evaluation the licensee might perform in the absence of further testing, stating DNC should consider the following:
-2 The NRC staff also provided feedback on a holistic evaluation the licensee might perform in the absence of further testing, stating DNC should consider the following:
- 1. Providing a discussion of the apparent discrepancy in the head loss effects of calcium addition between Rig 33 and Rig 89 tests as it relates to any conclusions about the effects of calcium phosphate precipitate.
- 2. Providing estimated calcium concentration considering all plant-specific calcium sources (e.g., insulation materials, bare concrete, concrete dislodged from a loss-of-coolant accident jet) and the Atomic Energy of Canada Limited leaching test results.
- 3. Providing results of the evaluation of the structural limit on the strainer.
- 4. Use of the most limiting Rig-33 results in comparing head loss against margin.
- 5. Providing a curve of limiting strainer design margins (e.g., net positive suction head, strainer differential pressure, flashing) versus time along with a discussion of the potential additional head loss caused by chemical precipitates.
- 6. Providing justification for any assumptions related to delayed precipitation timing.
- 7. Consulting licensees' successful holistic approaches.
DNC agreed to provide a potential path forward, including a submittal date for a draft holistic argument. by August 4,2010.
No proprietary information was discussed at the meeting. No members of the public were in attendance. A list of attendees is provided in the enclosure.
If you have any questions, please contac me at 301-415-1603.
Carleen J. Sa e s, Project Manager Plant LicensinB anch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-423
Enclosure:
As stated cc w/encls: Distribution via Listserv
LIST OF ATTENDEES JULY 282010, TELECONFERENCE WITH DOMINION NUCLEAR CONNECTICUT, INC. (DNC)
MILLSTONE POWER STATION, UNIT NO.3 GENERIC LETTER 2004-02 SUPPLEMENTAL RESPONSE Mark Sartain William Bartron Martin Legg Joseph Rigatti Dave Dakers Dave Sommers Wanda Craft Gary Nayler Paul Klein John Lehning Carleen Sanders Michael Scott Steven Smith Matthew Yoder Enclosure
-2 The NRC staff also provided feedback on a holistic evaluation the licensee might perform in the absence of further testing, stating DNC should consider the following:
- 1. Providing a discussion of the apparent discrepancy in the head loss effects of calcium addition between Rig 33 and Rig 89 tests as it relates to any conclusions about the effects of calcium phosphate precipitate.
- 2. Providing estimated calcium concentration considering all plant-specific calcium sources (e.g., insulation materials, bare concrete, concrete dislodged from a loss-of-coolant accident jet) and the Atomic Energy of Canada Limited leaching test results.
- 3. Providing results of the evaluation of the structural limit on the strainer.
- 4. Use of the most limiting Rig-33 results in comparing head loss against margin.
- 5. Providing a curve of limiting strainer design margins (e.g., net positive suction head, strainer differential pressure, flashing) versus time along with a discussion of the potential additional head loss caused by chemical precipitates.
- 6. Providing justification for any assumptions related to delayed precipitation timing.
- 7. Consulting licensees' successful holistic approaches.
DNC agreed to provide a potential path forward, including a submittal date for a draft holistic argument, by August 4, 2010.
No proprietary information was discussed at the meeting. No members of the public were in attendance. A list of attendees is provided in the enclosure.
If you have any questions, please contact me at 301-415-1603.
/raj Carleen J. Sanders, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-423
Enclosure:
As stated cc w/encls: Distribution via Listserv DISTRIBUTION:
PUBLIC Branch Reading MScott, NRR PKlein, CSteger, NRR JLehning, NRR NRR RidsAcrsAcnw_MailCTR Resource RidsNrrDorlLpll-2 Resource RidsOgcRp Resource RidsNrrPMMillstone Resource RidsNrrLAABaxter Resource RidsRgnlMailCenter Resource ADAMS A ccession Nos.: Packace: ML102220488, Mttq N0 tiIce: ML101950284 , Mttq S urnmarv: ML102220110 *.
via email OFFICE DORULPL1-2/PM DORULPL1-2/LA NRR/SSIB/BC DORULPL 1-2/BC NAME CSanders ABaxter * (w/comment) MScott (w/comment) HChernoff DATE 09/07/10 09/01/10; 09/13/10 09/09/10 09/14/10 Official Record Copy
