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MONTHYEARML0927304682009-09-28028 September 2009 Proposed License Amendment Request, TS 3.7.12 - ECCS Pump Room Exhaust Air Cleanup System (Preacs) Addition of Conditions/Action Statements Project stage: Request ML0930106062009-10-28028 October 2009 ECCS Pump Room Exhaust Air Cleanup System (Preacs). TS 3.7.12 - Acceptance for Review-TAC ME2413 and ME2414 Project stage: Acceptance Review ML1007003882010-03-11011 March 2010 Request for Additional Information #1, Regarding the License Amendment ECCS Room Exhaust Air Cleanup System (Preacs) TS 3.7.12 Project stage: RAI ML1009900882010-04-0808 April 2010 Response to Request for Additional Information Proposed License Amendment Request TS 3.7.12 - ECCS Pump Room Exhaust Air Cleanup System (Preacs) Addition of Conditions/Action Statements Project stage: Response to RAI ML1011601352010-04-26026 April 2010 E-mail Request for Additional Information #2 Regarding the License Amendment, North Anna, Unit 1 and 2, ECCS Pump Room Exhaust Air Cleanup System TS 3.7.12 Project stage: RAI ML1021800692010-07-0606 July 2010 Response to Precas Clarification Concerns from Phone Call Project stage: Request ML1025716272010-11-0101 November 2010 Issuance of Amendments 260 & 241 Regarding Change to Technical Specification (TS) 3.7.12, Emergency Core Cooling System (ECCS) Pump Room Exhaust Air Cleanup System (Preacs) Project stage: Approval ML1117300702011-06-15015 June 2011 Ny State Plants-ME4212, ME4213, ME4214, ME4267, and ME4330, ME4331, ME4332-NY State Comments on LARs for Cyber Security Plans for Nine Mile Point, Ginna, FitzPatrick, and Indian Point Plants Project stage: Other 2010-03-11
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Category:E-Mail
MONTHYEARML23320A1122024-01-18018 January 2024 NRC to Fws, Concurrence with Endangered Species Act Determinations for North Anna Power Station, Units 1 and 2, Subsequent License Renewal, Issuance of Draft Supplemental Environmental Impact Statement, and Opportunity for Public Comment ML23355A2722023-12-21021 December 2023 NRR E-mail Capture - Schedule Revision for Emergency Preparedness Staff Augmentation Times License Amendment Request ML23318A1172023-11-13013 November 2023 NRR E-mail Capture - Formal Issuance of RAIs for North Anna Technical Support Center (TSC) License Amendment Request (LAR) (L-2023-LLA-0006) ML23257A2092023-09-14014 September 2023 NRR E-mail Capture - Formal Issuance of 2nd Round RAIs for Surry Units 1&2 and North Anna Units 1&2 Emergency Plans LAR ML23243A9862023-08-31031 August 2023 NRR E-mail Capture - Draft RAIs for EP Staff Augmentation Times LAR (L-2022-LLA-0166) ML23219A1602023-08-0707 August 2023 003 Radiation Safety Baseline Inspection Information Request ML23171B0522023-06-20020 June 2023 NRR E-mail Capture - RAI for Review of Appendix F to DOM-NAF-2-P (Redacted) ML23075A0232023-03-15015 March 2023 NRR E-mail Capture - RAI - License Amend Req (LAR) to Revise Tech Spec (Ts) 3.6.8 Limiting Condition for Operation to Remove Refueling Water Chemical Addition Tank and Replace the Containment Sump Buffer North Anna, 1 and 2 (L-2022-LLA-0162 ML23067A2162023-03-0707 March 2023 NRR E-mail Capture - RAI for North Anna, 1 & 2, Surry 1 & 2, Millstone, 2 & 3, Request for Approval of App. F Fleet Report DOM-NAF-2-P, Qual of the Framatome ORFEO-GAIA and ORFEO-NMGRID CHF Correlations in the Dominion VIPRE-D Computer Code ML23060A0932023-03-0101 March 2023 NRR E-mail Capture - Formal Issuance of RAIs for Surry/North Anna Emergency Plans LAR ML23059A2282023-02-28028 February 2023 NRR E-mail Capture - Draft RAIs for Containment Buffer Change to Natb (L-2022-LLA-0162) ML23039A1712023-02-0808 February 2023 NRR E-mail Capture - Acceptance Review for Technical Support Center (TSC) Relocation (L-2023-LLA-0006) ML23018A0352023-01-17017 January 2023 NRR E-mail Capture - Acceptance Review for Fleet Report Re Appendix F of DOM-NAF-2-P (L-2022-LLT-0003) ML22342B1472022-12-0808 December 2022 NRR E-mail Capture - Acceptance Review for LAR Re NAPS Post LOCA Buffer Change (L-2022-LLA-0162) ML22335A4842022-12-0101 December 2022 NRR E-mail Capture - Acceptance Review for LAR North Anna Power Station - Units 1 and 2 and Surry Power Station - Units 1 and 2 Emergency Plan Staff Augmentation Times (L-2022-LLA-0166) ML22242A0452022-08-23023 August 2022 NRR E-mail Capture - Dominion GL 04-02 Response Draft RAIs (L-2017-LRC-0000) ML22174A3552022-06-23023 June 2022 NRR E-mail Capture - Acceptance Review for Dominion Fleet LAR to Implement TSTF-554 (L-2022-LLA-0078) ML22104A0252022-04-14014 April 2022 NRR E-mail Capture - Dominion Presentation Slides for April 21, 2022 Public Meeting on Emergency Preparedness Submittal for the North Anna Power Station and the Surry Power Station ML22083A2102022-03-24024 March 2022 NRR E-mail Capture - Draft RAI - Relief Request N2-14-LMT-003 Fourth Ten Year Inservice Inspection Interval ML22032A0962022-02-0101 February 2022 002 Radiation Safety Baseline Inspection Information Request ML22018A0272022-01-18018 January 2022 2022 All RFI Responses - Exercise and Program Inspections - Revl ML22007A2672022-01-0707 January 2022 NRR E-mail Capture - North Anna, Unit 2, ASME Section XI Inservice Inspection Program Relief Request N2-14-LMT-003 Fourth Interval Third Period Limited Examinations (L-2021-LLR-0088) ML21335A0812021-12-0101 December 2021 NRR E-mail Capture - Acceptance Review for OMN-28 Request Alternative to ISTC-3700, Position Verification Testing (L-2021-LLR-0086) ML21334A1922021-11-30030 November 2021 NRR E-mail Capture - Audit Plan for Reactor Core Thermal-Hydraulics Using the VIPRE-D Appendix E Review ML21327A3652021-11-23023 November 2021 NRR E-mail Capture - Draft RAI for TSTF-577 LAR ML21326A1502021-11-22022 November 2021 NRR E-mail Capture - Acceptance Review for Relocation of Unit Staff Requirements to the QAPD LAR (L-2021-LLA-0195) ML21322A0962021-11-18018 November 2021 Final Request for Additional Information Set 5 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21312A0082021-11-0404 November 2021 Enclosure 2 - NAPS Draft SER Table A.1-1 Markup ML21312A0112021-11-0404 November 2021 Enclosure 3 - NAPS Draft SER Section 3 Comments ML21312A0012021-11-0404 November 2021 Comments on North Anna Draft SER ML21306A3302021-11-0202 November 2021 NRR E-mail Capture - Acceptance Review for TSTF-569 LAR ML21286A7372021-10-13013 October 2021 Additional Element Included in the Implementation Plan for the Surry Fuel Melt Safety Limit (SL) LAR ML21274A0022021-09-30030 September 2021 NRR E-mail Capture - Acceptance Review for TSTF-577 LAR (L-2021-LLA-0158) ML21312A0022021-09-21021 September 2021 Enclosure 1 - E-mail - NAPS SLR SER Appendix a for Dominion Review ML21312A0072021-09-21021 September 2021 Enclosure 1 - E-mail - Enclosure B - NAPS SER App a - Dominion Comments 9-21-2021 ML21312A0032021-09-21021 September 2021 Enclosure 1 - E-mail - Enclosure a - Dominion Table A4.4-1 Clean Version ML21256A0672021-09-13013 September 2021 Final Request for Confirmation of Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21152A1722021-09-0707 September 2021 NRC to Fws, NRC Issuance of Draft Environmental Impact Statement for North Anna Subsequent License Renewal, Opportunity for Public Comment, and Endangered Species Act Determinations ML21238A0942021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21225A5512021-08-13013 August 2021 Discussion Point for Public Meeting Regarding Fire Protection Piping Cyclic Loading - Transmittal E-mail ML21195A2442021-07-13013 July 2021 NRR E-mail Capture - Draft RAI Appendix E to Topical Report DOM-NAF-2 Qualification of the Framatome BWU-I CHF Correlation in the Dominion Energy VIPRE-D Computer Code ML21188A1632021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21154A0152021-06-0101 June 2021 NRR E-mail Capture - Acceptance Review for Primary Grade Water LAR (L-2021-LLA-0082) ML21140A3682021-05-20020 May 2021 Response to North Anna Hardship (Temporary Staff Guidance Additional Guidance for FOF Inspections During the PHE) ML21140A3712021-05-19019 May 2021 FOF Discussion ML21123A2972021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - E-mail ML21091A0022021-04-0101 April 2021 Final Request for Additional Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21076A4622021-03-17017 March 2021 NRR E-mail Capture - Draft RAI for Versatile Internals and Component Program for Reactors Vipre Code Review (L-2021-LLT-0000) ML21075A0032021-03-12012 March 2021 Emergency Preparedness Exercise Inspection Request for Information for - Brunswick, Catawba, North Anna, Oconee, Vogtle 1 & 2 ML21069A3522021-03-10010 March 2021 NRR E-mail Capture - Acceptance Review for Topical Report DOM-NAF-2 VIPRE-D 2024-01-18
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From: Sreenivas, V Sent: Monday, April 26, 2010 10:14 AM To: 'david.heacock@dom.com' Cc: 'Tom Shaub'; 'jay.leberstien@dom.com'; 'page.kemp@dom.com'; Benton, Laray; Cotton, Karen; Kulesa, Gloria
Subject:
REQUEST FOR ADDITIONAL INFORMATION #2, REGARDING THE LICENSE AMENDMENT, NORTH ANNA, UNITS 1 AND 2, ECCS PUMP ROOM EXHAUST AIR CLEANUP SYSTEM (PREACS) TS 3.7.12 REQUEST FOR ADDITIONAL INFORMATION (RAI) FOR NORTH ANNA POWER STATIONS (NAPS)
(TAC NOS. ME2413 AND ME2414)
B.1.1 Verify ECCS leakage log is less than the maximum allowable unfiltered leakage. B.1.2 Verify by field walkdown that ECCS leakage is less than the maximum allowable unfiltered leakageC.1.1 Verify ECCS leakage log is less than the maximum allowable unfiltered leakage. C.1.2 Verify by field walkdown that ECCS leakage is less than the maximum allowable unfiltered leakageD.1.1 Verify ECCS leakage log is less than the maximum allowable unfiltered leakage. D.1.2 Verify by field walkdown that ECCS leakage is less than the maximum allowable unfiltered leakage In addition, the proposed change includes surveillance requirements that requires ECCS leakage operating parameters to be monitored by walking down the areas every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> in order to determine whether or not filtration capability is required (Action B.1.2). Establishing monitoring on a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> frequency is based on operating history, which indicated that a sudden change in ECCS leakage is not expected, and the conservatisms in the design basis dose calculations. If total ECCS leakage is equal to or greater than the maximum allowable unfiltered leakage limit then the filtration capability of ECCS PREACS is required and actions must be taken to restore Operability of the filter within seven days (Action B.2) consistent with an inoperable PREACS train for any other reason.B.1.1, C.1.1, and D.1.1, a Since the air within the ECCS pump rooms is exhausted by the ECCS PREACS and is aligned to the filters post-accident, a larger amount of ECCS leakage can be accommodated in these rooms. The maximum amount of ECCS leakage that can be accommodated in both the pump rooms (filtered) and remaining areas (unfiltered) is established by the assumption in the analysis (dose) of record. This relationship is shown in Figure 15.4-111 of Revision 44 of the UFSAR.
Procedures which address monitoring of ECCS leakage include provisions such that the ECCS leakage measurement will be adjusted by conservative calculation to reflect the accident conditions (i.e., higher leakage due to higher system operating pressure). Therefore, there is assurance that actual leakage during an accident will be less than or equal to the operating parameter of ECCS leakage identified prior to the accident.
___________________________ V. Sreenivas, PH.D., C.P.M.,
Project Manager, Rm.#O8F6, LPL2-1 North Anna Power Reactors, Units 1 and 2 Division of Operating Reactor Licensing-NRR (301) 415-2597, v.sreenivas@nrc.gov
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Subject:
REQUEST FOR ADDITIONAL INFORMATION #2, REGARDING THE LICENSE AMENDMENT, NORTH ANNA, UNITS 1 AND 2, ECCS PUMP ROOM EXHAUST AIR CLEANUP SYSTEM (PREACS) TS 3.7.12
Sent Date: 4/26/2010 10:14:25 AM Received Date: 4/26/2010 10:14:00 AM From: Sreenivas, V
Created By: V.Sreenivas@nrc.gov
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MESSAGE 20726 4/26/2010
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