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Category:Memoranda
MONTHYEARML24089A0632024-03-29029 March 2024 Memorandum from the Secretary Referring Hearing Request to the Atomic Safety and Licensing Board Panel ML24047A2092024-02-22022 February 2024 Calendar Year 2023 Baseline Inspection Completion ML23151A5472023-06-0101 June 2023 Public Meeting Summary - 2022 Annual Assessment Meeting Regarding North Anna Power Station, Docket Nos. 50-338 and 50-339; and Surry Power Station ML22130A1702022-05-20020 May 2022 Summary of April 21, 2022, Public Meeting to Discuss Potential Emergency Preparedness License Amendment Request ML22130A0332022-05-0909 May 2022 Public Meeting Summary 2021 Annual Assessment Meeting Regarding North Anna Power Station, Docket Nos. 50-338 and 50-339; and Surry Power Station, Docket Nos. 50-280 and 50-281, Meeting Number 20220349 ML22034A3932022-02-16016 February 2022 Calendar Year 2021 Security Baseline Completion Memo ML21293A0992021-12-10010 December 2021 Meeting Summary for Draft Supplemental Environmental Impact Statement Public Meeting ML21221A3012021-10-18018 October 2021 June 24, 2021, Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Memo ML21239A0642021-09-0202 September 2021 August 27, 2021, Summary: Discussion Between NRC and Dominion Regarding the NAPS Subsequent License Renewal - an Inconsistency in Documentation Regarding RCP Code Case N-481 (EPID No. L-2020-SLR-0000) - Memo ML21236A0512021-08-27027 August 2021 August 16, 2021, Meeting Summary: Discussion of Aging Management of Cyclic Fatigue in the Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Memo ML21221A0262021-08-26026 August 2021 Meeting Summary Regarding Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application ML21221A1362021-08-10010 August 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application ML21145A2122021-06-0909 June 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Memoranda ML21131A1612021-05-11011 May 2021 Public Meeting Summary - 2020 Annual Assessment Meeting Regarding Virgil C. Summer Nuclear Station, Docket No. 50-395; North Anna Power Station, Docket Nos. 50-338 and 50-339; and Surry Power Station, Docket Nos. 50-280 and 50-281, Meeting 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 ML20350B4562020-12-17017 December 2020 Summary of the Historic and Cultural Resources Environmental Audit Meeting Related to the Review of the Subsequent License Renewal Application for the North Anna Power Station, Units 1 and 2 ML20136A1752020-05-15015 May 2020 Sur 2019 Aam Meeting Summary ML19190A2862019-07-16016 July 2019 Summary of July 7, 2019, Public Meeting with Dominion to Discuss Open Phase Condition RAI Responses ML19165A1122019-06-14014 June 2019 Memoranda to File Environmental Assessment and Finding of No Significant Impact for the Virginia Electric and Power Company, Dominion Energy Kewaunee, Inc., and Dominion Nuclear Connecticut, Inc.'S Decommissioning Funding Plans Submitted ML19128A3432019-05-0808 May 2019 Public Meeting Summary - 2018 Annual Assessment Public Meeting Regarding North Anna Power Station, Docket Nos. 50-338 and 50-339 ML18151A4682018-05-29029 May 2018 Public Meeting Summary - 2017 Annual Assessment Public Meeting Regarding North Anna Power Station, Docket Nos. 50-338 and 50-339 ML17209A7652017-08-0303 August 2017 Fire Protection Input for Millstone Power Station Unit 2 Exemption from Title 10 of the Code of Federal Regulations Part 50, Appendix R, Section Iii.G, Fire Protection of Safe Shutdown Capability, for Use of Operator Manual Actions ML17137A0932017-05-17017 May 2017 Request for Additional Information, Alternative to Reactor Vessel Threads in Flange Examination Requirements ML17123A2092017-05-0303 May 2017 Summary of Meeting to Discuss Annual Assessment of the North Anna Power Station, Units 1 and 2 with the Public for the Period of January 1, 2016 Through December 31, 2016 ML16215A0752016-08-24024 August 2016 North Anna Power Station - Audit Report for Proposed License Amendment to Revise the Technical Specifications to Address the Issue Identified in Westinghouse Documents NSAL-09-5. Rev. 1 and NSAL-15-I ML16209A4132016-07-27027 July 2016 Safety Evaluation For North Anna Power Station, Units 1 And 2, Proposed License Amendment To Revise The Technical Specifications To Address The Issue Identified In Westinghouse Documents NSAL-09-5. Rev. 1 and NSAL-15-I (TAC No. MF7186 and MF7187) ML16139A5892016-05-23023 May 2016 North Anna Trip Report, April 11, 2016 ML16124A7582016-05-0303 May 2016 April 14, 2016, Summer of Public Meeting - North Anna, Units 1 and 2 ML16098A5302016-04-14014 April 2016 Audit Plan - Application for Amendment North Anna Power Station, Units 1 and 2. the Proposed License Amendment Revises the Issues Identified in Westinghouse Documents NSAL-09-5, Rev 1 and NSAL-15-1 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) 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 ML15253A4032016-03-11011 March 2016 Recommendation for Dispositioning Proposed Generic Issue on the Effects of Downstream Dam Failures on Nuclear Power Plants ML15281A2672015-10-28028 October 2015 Reassignment of U.S. Nuclear Regulatory Commission Branch Chief ML15232A8112015-08-24024 August 2015 Evaluation of Information Related to Commitments 6 and 8 from Confirmatory Action Letter No. NRR-2011-002 ML15238B5922015-08-17017 August 2015 Review of Commitment Action Completion Confirmation Action Letter Regarding Earthquake in 2011 ML15230A2162015-08-13013 August 2015 Review of Commitment Actions in Confirmatory Action Letter Regarding Earthquake in 2011 ML15128A5462015-05-0808 May 2015 Summary of Public Meeting with North Anna, Units 1 and 2 to Discuss the Annual Assessment with the Public ML14101A1202014-04-11011 April 2014 Public Meeting Summary - North Anna Power Station, Docket Nos. 50-338, 50-339 ML1208704282012-03-26026 March 2012 Memo C Bladey, Adm, Notice of EA and Fonsi - VEPCO, North Anna Power Station (72-1030, 50-338, 50-339, 72-56) ML13127A3682012-03-13013 March 2012 Memo from M. Case to P. Hiland, Subject: Review of Draft Nureg/Cr - Xxxx Entitled, Ultrasonic Phased Array Assessment of the Interference Fit and Leak Path of the North Anna Unit 2 Control Rod Drive Mechanism Nozzle 63 with Destructive Vali ML13219A0462012-03-13013 March 2012 Memo from M. Case to P. Hiland, Subject: Review of Draft NUREG/CR-XXXX Entitled, Ultrasonic Phased Array Assessment of the Interference Fit and Leak Path of the North Anna Unit 2 Control Rod Drive Mechanism Nozzle 63 with Destructive Valida ML11277A0292011-10-0404 October 2011 Summary Audit Report of North Anna Post-Seismic Fuel Inspections ML11271A1782011-10-0303 October 2011 Review of Topical Report, Revision 11 for Kewaunee Power Station and ISFSI, Millstone Power Station, Units 1, 2, & 3 and ISFSI, North Anna Power Station, Units 1 & 2 and ISFSI, Surry Power Station, Units 1 & 2 and ISFSI (Tac ME6649, ME6650, ML12054A1452011-09-19019 September 2011 Email from G. Thomas, NRR to D. Hoang, NRR Et Al. FW: North Anna Seismic Report - Summary Report of August 23/2011 Earthquake Response and Restart Readiness Determination Plan North Anna Power Station Units 1 and 2 and ISFSI ML12053A4082011-09-15015 September 2011 Email from M. Khanna, NRR to K. Karwoski, NRR Et Al. on North Anna Seismic Issue Restart Action Plan Draft Final.Docx ML11249A1562011-09-0707 September 2011 Notice of Forthcoming Meeting with Virginia Electric and Power Company (Vepco), on the August 23, 2011 Earthquake Near the North Anna Power Station, Unit Nos. 1 and 2 ML12005A0302011-08-30030 August 2011 Letter from V. Mccree, Region II to M. Franke, Region II; Augmented Inspection Charter to Evaluate Total Loss of Offsite Power, Dual Unit Reactor Trips and Plant Equipment Issues Following a Seismic Event at North Anna ML11171A7022011-06-29029 June 2011 Final Response to TIA 2011-003, Nine Mile Point Nuclear Station Unit 1 Licensing Basis for Degraded Grid Relay Time Delays ML1027800722010-10-0404 October 2010 Special Inspection Charter ML1023100152010-08-18018 August 2010 Notice of Meeting with Virginia Electric & Power to Discuss Proposed Addition of Analytical Methodology to Core Operating Limits Report 2024-03-29
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June 4, 2003 MEMORANDUM TO: Dam Safety Advisory Group Geary Mizuno (OGC)
Goutam Bagchi (NRR)
Andrew Murphy (RES)
James Costello (RES)
FROM: Daniel Rom, NRC Dam Safety Officer /RA/
High Level Waste Branch Division of Waste Management Office of Nuclear Materials Safety and Safeguards
SUBJECT:
ACTION REQUESTED - TELEPHONE CONFERENCE WITH VIRGINIA ELECTRIC POWER COMPANY TO DISCUSS DAM SAFETY ISSUES FOR THE CATEGORY I SERVICE WATER RESERVOIR DAM AT THE NORTH ANNA NUCLEAR POWER PLANT This memorandum summarizes important points raised at a meeting of NRCs Dam Safety Advisory Group (DSAG) on March 19, 2003. It is suggested that this information be shared with NRR Management, and that they participate in a telephone conference with the Dam Safety Officer (DSO) and Virginia Electric Power Company (VEPCO) management to resolve open issues dating to 1997.
As part of NRCs Dam Safety Program, Category I dams associated with power reactors are inspected for safety every two years. NRC is responsible for these inspections under the National Dam Safety Program. The 1997, 1999, and 2001, safety inspections of the Category I Service Water Pond (SWP) dam at North Anna have had open issues based on input from our contractor for inspections, the Federal Energy Regulatory Commission (FERC). On May 10, 2002, the DSO issued a letter to VEPCO requesting the licensee re-address the open issues, most importantly the concerns about seepage. VEPCOs written response, dated November 6, 2002, was the subject of the March DSAG meeting.
The DSAG, which includes members from NRR, RES, OGC, and NMSS, determined that VEPCOs written response of November 6, 2002, did not resolve all of our concerns. FERC has done a thorough series of inspections, consistent with the level of detail exercised at the six other NRC Category I dams at power reactor sites. In each of the other six power reactor sites, similar findings have resulted in conscientious and positive licensee response.
CONTACT: Daniel Rom 301-415-6704
VEPCOs written responses that failed to meet expectations are discussed below, in order of importance with respect to safety:
ó NRC and VEPCO have not resolved the issue of possible seepage from the embankment. NRC and FERC are concerned that seepage, considered with increased piezometric readings, may indicate changes in embankment behavior that could affect the stability of the dam. Although VEPCO has made its position on the seepage question clear, it has not presented a convincing argument to NRC, nor to FERC.
Although seepage alone does not necessarily prove a problem exists, recognition of seepage and aggressive monitoring is a safety prerequisite. Additional discussion of the seepage question can be found in the DSAG Meeting Minutes of March 19, 2003.
ó NRC requested that quarterly flow measurements for horizontal drains that extend beneath the Service Water Pumphouse be made, and that a summary of readings be included in the annual inspection report. VEPCO replied that Increasing to quarterly flow measurements is not considered necessary at this time.
ó NRC requested that the newly installed piezometers should be clearly numbered, i.e.,
the new P-10 should be renumbered P-10A. VEPCO responded that ...there is no need to renumber the standpipe piezometer P-10.
ó NRC requested that VEPCO staff should include a summary of instrumentation data and predicted performance of the embankment in the next Inservice Inspection report, providing copies for NRC review and comment. VEPCO responded The next 5 year ISI report is due in 2004. We will submit the inspection results consistent with normal NRC reporting requirements.
At the March meeting, the DSAG also discussed several alternatives to break the impasse with VEPCO on these issues. The alternatives discussed included 1) NRR management informally contacting VEPCO management to express its concern with the lack of apparent responsiveness to NRC concerns; 2) a formal telephone conference or in-person meeting between NRR management and VEPCO; and 3) an agreement to postpone the upcoming NRC on-site dam safety inspection to the summer, to reflect a VEPCO request and contention that observed ponding was due solely to poor drainage after precipitation.
Given that some of the open issues date to 1997, and in view of VEPCOs most recent written response, I recommend that a telephone conference be held to discuss these issues with NRR and VEPCO management. The DSAG also agreed that the upcoming on site dam safety inspection will be conducted this summer. Therefore, I suggest the telephone conference be held on or before June 26, 2003. Please contact me at 415-6704, or e-mail at dsr@nrc.gov, with your comments on the above, or if you have any questions.
cc: Stephen R. Monarque (NRR)
Kathryn Barber (OGC)
Brooke Smith (OGC)
VEPCOs written responses that failed to meet expectations are discussed below, in order of importance with respect to safety:
ó NRC and VEPCO have not resolved the issue of possible seepage from the embankment. NRC and FERC are concerned that seepage, considered with increased piezometric readings, may indicate changes in embankment behavior that could affect the stability of the dam. Although VEPCO has made its position on the seepage question clear, it has not presented a convincing argument to NRC, nor to FERC.
Although seepage alone does not necessarily prove a problem exists, recognition of seepage and aggressive monitoring is a safety prerequisite. Additional discussion of the seepage question can be found in the DSAG Meeting Minutes of March 19, 2003.
ó NRC requested that quarterly flow measurements for horizontal drains that extend beneath the Service Water Pumphouse be made, and that a summary of readings be included in the annual inspection report. VEPCO replied that Increasing to quarterly flow measurements is not considered necessary at this time.
ó NRC requested that the newly installed piezometers should be clearly numbered, i.e.,
the new P-10 should be renumbered P-10A. VEPCO responded that ...there is no need to renumber the standpipe piezometer P-10.
ó NRC requested that VEPCO staff should include a summary of instrumentation data and predicted performance of the embankment in the next Inservice Inspection report, providing copies for NRC review and comment. VEPCO responded The next 5 year ISI report is due in 2004. We will submit the inspection results consistent with normal NRC reporting requirements.
At the March meeting, the DSAG also discussed several alternatives to break the impasse with VEPCO on these issues. The alternatives discussed included 1) NRR management informally contacting VEPCO management to express its concern with the lack of apparent responsiveness to NRC concerns; 2) a formal telephone conference or in-person meeting between NRR management and VEPCO; and 3) an agreement to postpone the upcoming NRC on-site dam safety inspection to the summer, to reflect a VEPCO request and contention that observed ponding was due solely to poor drainage after precipitation.
Given that some of the open issues date to 1997, and in view of VEPCOs most recent written response, I recommend that a telephone conference be held to discuss these issues with NRR and VEPCO management. The DSAG also agreed that the upcoming on site dam safety inspection will be conducted this summer. Therefore, I suggest the telephone conference be held on or before June 26, 2003. Please contact me at 415-6704, or e-mail at dsr@nrc.gov, with your comments on the above, or if you have any questions.
cc: Stephen R. Monarque (NRR)
Kathryn Barber (OGC)
Brooke Smith (OGC)
DISTRIBUTION:
NMSS r/f HLWB r/f C:\ORPCheckout\FileNET\ML031770100.wpd *See Previous Concurrence ML OFC: HLWB HLWB NAME: D. Rom C.Schulte*
DATE: 6/ /03 6/ 6 /03 OFFICIAL RECORD COPY