Letter Sequence RAI |
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MONTHYEARML0307805472003-03-19019 March 2003
Revisions to ESFAS Technical Specifications Request for Additional Information
Project stage: RAI
ML0410404932004-04-0505 April 2004
Technical Specifications, Revision to Allowed Outage Time for Engineered Safety Features Actuation System Instrumentation
Project stage: Other
2003-03-19
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Category:Memoranda
MONTHYEARML23325A2022024-01-16016 January 2024
CFR Part 52 Construction Lessons-Learned Report
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Nov. 2023 Enviro Scoping Meetings Related to the V.C. Summer Subsequent License Renewal Application Meeting Summary Memo
ML23171A9172023-06-20020 June 2023
Summary of Meeting Concerning the V.C. Summer Nuclear Station, to Discuss Annual Assessment for Period Jan 1, 2022 Through December 31, 2022
ML22270A2042022-09-30030 September 2022
Summary of Meeting Regarding a Potential Request to Modify the Reactor Vessel Surveillance Capsule Withdrawal Schedule for VC Summer
ML21160A0312021-07-12012 July 2021
10 CFR Part 52 Lessons-Learned with Construction at Vogtle 3 & 4 and V.C. Summer 2 & 3
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
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Public Meeting Summary Virgil C. Summer Nuclear Station
ML19123A1332019-05-0101 May 2019
Public Meeting Summary - V.C. Summer Nuclear Station, Docket No. 50-395 to Provide Opportunities to Discuss Annual Assessment of V.C Summer Nuclear Station with the Public for Period of January 01, 20018 - December 31-2018
ML18144A1482018-05-24024 May 2018
Public Meeting Summary - Virgil C. Summer Nuclear Station Docket No. 50-395
ML17103A5222017-04-12012 April 2017
Annual Assessment Meeting Summary 2017
ML16218A4722016-08-0505 August 2016
Wectec, LLC, Commitment for Ongoing Compliance to Confirmatory Order EA-12-189 and EA-13-196
ML16068A3882016-03-0909 March 2016
Memo Ico Staff Review of V.C. Summer Nuclear Station Physical Security Plan Rev. 15 (NS113625) for Verification of ASM Order (EA-13-228) Implementation (CAC L25088)
ML16061A5252016-02-26026 February 2016
Memo T Mossman, NSIR, Technical Assistance Request - Review of Physical Security Plan for the Virgil C. Summer Nuclear Station ISFSI (72-1038, 50-395) (L25088)
ML15119A5102015-04-29029 April 2015
Meeting Summary with Members of the Public Concerning the Annual Assessment of of Virgil C. Summer Nuclear Station, Unit 1, in Blair, S.C
ML14106A4762014-04-16016 April 2014
End of Cycle 2013 Public Meeting Memo
ML13275A3102013-11-25025 November 2013
Cover Memo from Robert Caldwell to Robert Pascarelli, RAI for V C Summer Revision 10 Security Plan Review
ML13142A1572013-05-29029 May 2013
Update for 06/20/13 Meeting Notice with South Carolina Electric & Gas Company Regarding Voluntary Fire Protection Risk Initiative Self Assessment
ML13122A1782013-05-13013 May 2013
Notice of Forthcoming Meeting with South Carolina Electric & Gas Company Regarding Voluntary Fire Protection Risk Initiative Self Assessment
ML13067A2592013-03-11011 March 2013
Forthcoming Meeting with South Carolina Electric & Gas Company Regarding Proposed Emergency Plan Change for Virgil C. Summer Nuclear Station, Unit No. 1
ML12325A4322012-11-26026 November 2012
Verbal Approval of Alternative for Overlay Repair of Reactor Vessel Head Penetrations
ML12333A1252012-11-0808 November 2012
FEMA Memo from C. Burnside to Regional Assistance Committee Discussing the VC Summer Nuclear Station 10-Mile EPZ Boundary Change Request
ML1120707482011-07-26026 July 2011
July 20, 2011, Meeting Summary Pre-Application Meeting with South Carolina Electric and Gas Regarding General License Independent Spent Fuel Storage Installation Plans (TAC No. L24544)
ML1106800552011-03-0909 March 2011
Notice of Forthcoming Meeting with South Carolina Electric & Gas Company, (Sce&G), to Discuss NFPA 805 License Amendment for Virgil C. Summer Nuclear Station, Unit 1
ML1016704282010-06-17017 June 2010
Meeting Summary Notice
ML1009200352010-05-17017 May 2010
Staff Review of WCAP-16571-P Referenced in Virgil C. Summer'S GL 2004-02 Supplemental Response for Downstream Effects Evaluations of Components
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U.S. Nuclear Regulatory Commission Staff Review of the Department of Homeland Security Consultation Reports
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Forthcoming Conference Call with South Carolina Electric & Gas, to Discuss the Licensee'S Planned Response to the Nrc'S Request for Additional Information Pertaining to Generic Letter 2004-02, Potential Impact of Debris
ML0807400842008-03-14014 March 2008
Draft Regulatory Guide for Comment
ML0617805592006-07-10010 July 2006
Revised Closeout Letter for Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors.
ML0618101822006-07-0707 July 2006
Presentation Materials: Crack Growth Rates in a PWR Environment of Nickel-Base Alloy Welds from the Davis-Besse and V.C. Summer Plants, by Bogdan Alexandreanu, Omesh Chopra, and Bill Shack
ML0615302842006-06-0505 June 2006
Notice of Meeting with South Carolina Electric & Gas Company Online Monitoring of Instrument Channel Performance at V. C. Summer
ML0608000022006-03-22022 March 2006
Memo, Response to TIA 2005-04 Tornado Missile Vulnerability
ML0516505112005-08-16016 August 2005
Closeout Letter for Bulletin 2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-water Reactors.
ML0514604012005-05-25025 May 2005
Ltr., Correction of License Authority
ML0504901422005-02-17017 February 2005
Summary of January 13, 2005, Meeting Between the U.S. Nuclear Regulatory Commission (NRC) and Nuclear Energy Institute (NEI) on Updating the License Renewal Guidance Documents
ML0421003322004-06-30030 June 2004
Close-out of Tacs Relating to the Review of 35-day Letters Submitted in Response to the April 29, 2003, Orders Revising the Design Basis and Security Guard Force Training Enhancements and Physical Fitness Requirements
ML0408600142004-04-28028 April 2004
Renewal of Full-Power Operating License for Virgil C. Summer Nuclear Station, Unit 1 - Memo to Comm. from W. Travers
ML0404104222004-02-0404 February 2004
Request Approval of Excused Absence for Employees Affected by Inclement Weather Conditions
ML0327900132003-10-0303 October 2003
Summary of Telecommunication (Telecon) with South Carolina Electric and Gas (Sce&G) Company Representatives to Discuss Staff Questions on 10 CFR 54.4(a)(2) Criteria, and Responses to Requests for Additional Information Pertaining to the Lic
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Results of the Virgil C. Summer SDP Phase 2 Notebook Benchmarking Visit
ML0307805472003-03-19019 March 2003
Revisions to ESFAS Technical Specifications Request for Additional Information
ML0229703632002-10-23023 October 2002
Meeting with NEI, Surry & North Anna Units 1 & 2, McGuire & Catawba Units 1 & 2, Peach Bottom Units 2 & 3, St. Lucie Units 1 & 2, Fort Calhoun, H. B. Robinson Unit 2, R.E. Ginna, and Virgil C. Summer. the Proposed Agenda Is Attached
ML0227704612002-09-27027 September 2002
Evaluation of Reactor Pressure Vessel Nozzle to Hot-leg Piping Bimetallic Weld Joint Integrity for the V.C. Summer Nuclear Power Plant, Figures 21 - 70
ML0227602642002-09-27027 September 2002
Evaluation of Reactor Pressure Vessel Nozzle to Hot-leg Piping Bimetallic Weld Joint Integrity for the V.C. Summer Nuclear Power Plant, Memorandum Dated 09/27/02 - Figure 20
ML0215706002002-06-0606 June 2002
V. C. Summer - Telephone Conference Reactor Vessel Head Inspection Results
NRC Generic Letter 1989-111989-06-30030 June 1989
NRC Generic Letter 1989-011: Resolution of Generic Issue 101 Boiling Water Reactor Water Level Redundancy
2024-01-16
[Table view] |
Text
March 19, 2003 MEMO TO: John A. Nakosk FROM: Karen Cotton /RA/
The following questions will be forwarded to V.C. Summer to support a conference call regarding revisions to ESFAS Technical Specifications - TAC NO. MB7978.
V. C. Summer Nuclear Station Revisions to ESFAS Technical Specifications TAC NO. MB7978 Request for Additional Information RAI #1 VCSNS Technical Specifications page 3/4 3-23, Table 3.3-3, Action Statement 16 states:
With the number of OPERABLE channels one less than the Total Number of Channels operation may proceed provided the inoperable channel is placed in the bypassed condition and the Minimum Channels OPERABLE requirement is met. One additional channel may be bypassed for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for surveillance testing per Specification 4.3.2.1.
The licensee stated that Action Statement 16 applies to channels that energize to actuate and currently these channels are permitted by TS to be placed in a bypassed state indefinitely.
Specifically these are level channels for the Refueling Water Storage Tank that initiate the semi-automatic swap-over to the Reactor Building recirculation sumps; the pressure channels in the suction piping to the Emergency Feedwater pumps that initiate the swap-over to the safety -related source of water; and the Reactor Building pressure channels that initiate the containment spray system. The licensee proposes to change Action Statement 16 to meet its commitment as reported in LER 2000-004-00. The purpose of the Action Statement 16 changes is to resolve a condition where, due to a newly identified single failure consideration, the above functions may not occur when needed.
The licensee proposes to retain the ability to proceed with plant operations provided the inoperable channel is place in channel bypass, but not for an indefinite period. The revised Action Statement 16 will add requirements to restore the bypassed inoperable channel to operable status in 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, otherwise; place the affected channel in trip (emphasis added) within the following hour OR be in Mode 3 in within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in Mode 4 within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
The staff notes that the purpose of placing one inoperable channel of the above functions in bypass rather than trip is to decrease the probability of inadvertent actuations of containment spay or premature swap-over to safety related sources of water, as appropriate. The STS (NUREG-1431) action requirements for the above functions establishes a precedent that is consistent with current VCSNS Action Statement 16. The STS permit only one channel to be bypassed indefinitely. Upon a second channel becoming inoperable, LCO 3.0.3 must be entered. Furthermore, the STS Bases note that none of these signals has input to a control function, thus, two-out-of-three logic is necessary to meet acceptable protective requirements.
Provide a discussion of the VCSNS design to explain why the proposed action to place an
inoperable channel in trip will not increase the probability of inadvertent actuations of containment spray or premature swap-over to safety related sources.
RAI #2 Action 25 is added to VCSNS Technical Specifications to describe an action for inoperable channels of Table 3.3-3, function 5.b, Turbine Trip and Feedwater Isolation Automatic Actuation and Actuation Relays. Function 5.b is required to be OPERABLE in Modes 1, 2 and
- 3. The proposed Action 25 requires the plant to be in Mode 5 if inoperable channels are not restored within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. The staff notes that exiting the mode of applicability (i.e., placing the plant in Mode 4) is a sufficient remedial action to comply with current TS LCO 3.0.1 requirements. Provide a revised TS Action 25. In a separate proposed change the staff notes that the proposed change to remove s from requirements in Action Statement 19.b was not made in the revised VCSNS TS pages.
