Letter Sequence Other |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Administration
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
Results
Other: BVY 06-009, 2006/01/25-Vermont Yankee Nuclear Power Station Applicant'S Environmental Report Operating License Renewal Stage, Appendix E, BVY 06-076, 2006/08/10-Vermont Yankee - License Renewal Application, Amendment 8, BVY 06-079, 2006/08/22-Vermont Yankee License Renewal Application, Amendment 11, BVY 06-083, 2006/09/05-Vermont Yankee License Renewal Application, Amendment 12, BVY 06-095, E-mail: (PA-LR) Copy of SAMA Response, BVY 06-096, 2006/10/20-Vermont Yankee - License Renewal Application, Amendment No. 17, BVY 06-097, 2006/10/31-Vermont Yankee License Renewal Application, Amendment 19, BVY 06-098, E-mail: (PA-LR) Copy of Vhs RAI Response, BVY 07-003, Email: (PA-LR) Vermont Yankee Nuclear Power Station License Renewal Commitment List, Rev. 5, BVY 07-009, License Renewal Application, Amendment 24, BVY 07-018, License Renewal Application, Amendment 26, BVY 07-034, License Renewal Application Annual Update, BVY 07-035, (PA-LR) Bvy 07-035 VY Lr SER Comments, BVY 07-047, License Renewal Application, Amendment 27, Submitted on January 25, 2006, BVY 07-058, License Renewal Application, Amendment 29, BVY 07-062, License Renewal Application, Amendment 30, BVY 07-066, License Renewal Application, Amendment 31, BVY 08-016, (PA-LR) Emailing Bvy 08-016 Final SER Review Comments, BVY 10-069, License Renewal Application Annual Update Information, ML060950195, ML060950215, ML060950218, ML060950220, ML060950224, ML060950235, ML060950250, ML060950258, ML060950262, ML060950269, ML060950271, ML060950277, ML060950279, ML060950284, ML060950290, ML060950301, ML060950311, ML060950323, ML060950328, ML060950331, ML060950347, ML060950351, ML060950356, ML060950364, ML060950370, ML060950372, ML060950375, ML060950540, ML060950549, ML060950559, ML060950567... further results
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MONTHYEARML0629203681987-12-31031 December 1987 VY Annual Ecological Studies of the CT River Report 16-final.pdf Project stage: Other ML0629203651989-12-31031 December 1989 VY Annual Ecological Reports from the 1980's (1989) Project stage: Other ML0609503511998-02-28028 February 1998 GALL AMP: XI.M12, Thermal Aging Embrittlement of Cast Austenitic Stainless Steel (CASS) (Audit Worksheet GALL Report AMP) Project stage: Other BVY 06-009, 2006/01/25-Vermont Yankee Nuclear Power Station Applicant'S Environmental Report Operating License Renewal Stage, Appendix E2006-01-25025 January 2006 2006/01/25-Vermont Yankee Nuclear Power Station Applicant'S Environmental Report Operating License Renewal Stage, Appendix E Project stage: Other ML0609505792006-03-22022 March 2006 GALL AMP: XI.M24, Compressed Air Monitoring (Audit Worksheet GALL Report AMP) Project stage: Other ML0609506202006-03-22022 March 2006 GALL AMP: XI.M31, Reactor Vessel Surveillance (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505962006-03-22022 March 2006 GALL AMP: XI.M27, Fire Water System (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502792006-03-22022 March 2006 GALL AMP: XI.M3, Reactor Head Closure Studs (Audit Worksheet, GALL Report AMP) Project stage: Other ML0609506292006-03-22022 March 2006 GALL AMP: XI.M33, Selective Leaching of Materials (Audit Worksheet GALL Report AMP) Project stage: Other ML0609506372006-03-22022 March 2006 GALL AMP: XI.M36, External Surfaces Monitoring (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502842006-03-22022 March 2006 GALL AMP: XI.M4, BWR Vessel Id Attachment Welds (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502202006-03-22022 March 2006 GALL AMP: X.S1, Concrete Containment Tendon Prestress (Audit Worksheet GALL Report AMP) Project stage: Other ML0610001472006-03-22022 March 2006 GALL AMP: XI.S8, Protective Coating Monitoring and Maintenance Program (Audit Worksheet GALL Report AMP) Project stage: Other ML0610001342006-03-22022 March 2006 GALL AMP: XI.S5, Masonry Wall Progam (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502182006-03-22022 March 2006 GALL AMP: X.M1, Metal Fatigue of Reactor Coolant Pressure Boundary (Audit Worksheet, GALL Report AMP) Project stage: Other ML0609505592006-03-22022 March 2006 GALL AMP: XI.M20, Open-Cycle Cooling Water System (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503472006-03-22022 March 2006 GALL AMP: XI.M11A, Nickel Alloy Penetration Nozzles Welded to the Upper Reactor Vessel Closure Heads of Pressurized Water Reactors Project stage: Other ML0609505402006-03-22022 March 2006 GALL AMP: XI.M18, Bolting Integrity (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505672006-03-22022 March 2006 GALL AMP: XI.M21, Closed-Cycle Cooling Water System (Audit Worksheet GALL Report AMP) Project stage: Other ML0610001012006-03-22022 March 2006 GALL AMP: XI.S2, ASME Section XI, Subsection Iwl (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505732006-03-22022 March 2006 GALL AMP: XI.M23, Inspection of Overhead Heavy Load and Light Load (Related to Refueling) Handling Systems (Audit Worksheet GALL Report AMP) Project stage: Other ML0609506102006-03-22022 March 2006 GALL AMP: XI.M29, Aboveground Steel Tanks (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502902006-03-22022 March 2006 GALL AMP: XI.M5, BWR Feedwater Nozzle (Audit Worksheet, GALL Report AMP) Project stage: Other ML0610001382006-03-22022 March 2006 GALL AMP: XI.S6, Structures Monitoring Program (Audit Worksheet GALL Report AMP) Project stage: Other ML0610001262006-03-22022 March 2006 GALL AMP: XI.S4, 10 CFR 50, Appendix J (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502242006-03-22022 March 2006 GALL AMP: XI.E1, Electrical Cables and Connections Not Subject to 10 CFR 50.49 Environmental Qualification Requirements (Audit Worksheet GALL Report AMP) Project stage: Other ML0609506062006-03-22022 March 2006 GALL AMP: XI.M28, Buried Piping and Tanks Surveillance (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502152006-03-22022 March 2006 GALL AMP: X.E1. Environmental Qualification (EQ) of Electric Components (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503752006-03-22022 March 2006 GALL AMP: XI.M17, Flow-Accelerated Corrosion (Audit Worksheet GALL Report AMP) Project stage: Other ML0610000782006-03-22022 March 2006 GALL AMP: XI.M38, Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505702006-03-22022 March 2006 GALL AMP: XI.M22, Boraflex Monitoring (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503722006-03-22022 March 2006 GALL AMP: XI.M16, PWR Vessel Internals (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503642006-03-22022 March 2006 GALL AMP: XI.M14, Loose Part Monitoring (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502772006-03-22022 March 2006 GALL AMP: XI.M2, Water Chemistry (Audit Worksheet, GALL Report AMP) Project stage: Other ML0609506242006-03-22022 March 2006 GALL AMP: XI.M32, One-Time Inspection (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503112006-03-22022 March 2006 GALL AMP: XI.M7, BWR Stress Corrosion Cracking (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502352006-03-22022 March 2006 GALL AMP: XI.E2, Electrical Cables and Connections Not Subject to 10 CFR 50.49 Environmental Qualification Requirements Used in Instrumentation Circuits (Audit Worksheet GALL Report AMP) Project stage: Other ML0609506342006-03-22022 March 2006 GALL AMP: XI.M35, One-Time Inspection of ASME Code Class 1 Small Bore Piping (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502502006-03-22022 March 2006 GALL AMP: XI.E3, Inaccessible Medium-Voltage Cables Not Subject to 10 CFR 50.49 Environmental Qualification Requirements (Audit Worksheet GALL Report AMP) Project stage: Other ML0610001432006-03-22022 March 2006 GALL AMP: XI.S7, Rg 1.127, Inspection of Water-Control Structures Associated with Nuclear Power Plants (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505492006-03-22022 March 2006 GALL AMP: XI.M19, Steam Generator Tube Integrity (Audit Worksheet GALL Report AMP) Project stage: Other ML0609505872006-03-22022 March 2006 GALL AMP: XI.M26, Fire Protection (Audit Worksheet GALL Report AMP) Project stage: Other ML0609501952006-03-22022 March 2006 GALL AMP: Plant-Specific (Audit Worksheet - GALL Report AMP) Project stage: Other ML0609503702006-03-22022 March 2006 GALL AMP: XI.M15, Neutron Noise Monitoring (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503012006-03-22022 March 2006 GALL AMP: XI.M6, BWR Control Rod Drive Return Line Nozzle (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503282006-03-22022 March 2006 GALL AMP: XI.M9, BWR Vessels Internals (Audit Worksheet GALL Report AMP) Project stage: Other ML0610000962006-03-22022 March 2006 GALL AMP: XI.S1, ASME Section XI, Subsection IWE (Audit Worksheet GALL Report AMP) Project stage: Other ML0609502692006-03-22022 March 2006 GALL AMP: XI.E6, Electrical Cable Connections Not Subject to 10 CFR 50.49 Environmental Qualification Requirements (Audit Worksheet, GALL Report AMP) Project stage: Other ML0609502622006-03-22022 March 2006 GALL AMP: XI.E5, Fuse Holder (Audit Worksheet GALL Report AMP) Project stage: Other ML0609503312006-03-22022 March 2006 GALL AMP: XI.M10, Boric Acid Corrosion (Audit Worksheet GALL Report AMP) Project stage: Other 1998-02-28
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Category:E-Mail
MONTHYEARML21075A1582021-03-15015 March 2021 E-mail from T. Silko to J. Parrott, NMSS, Vermont Yankee on the State of Vermont Comments on the Review of the Draft Final SER and EA for 20.2002 Alternate Disposal Request ML21006A0242020-12-22022 December 2020 E-mail from J. Parrott to J. Tierney and N. Creed Vermont Yankee Request to NRC for Alternate Disposal of Wastewater ML20358A0702020-12-22022 December 2020 E-mail Acceptance Review for Request for Indirect License Transfer (License DPR-28, Docket No. 50-271) ML20175A2122020-06-23023 June 2020 Acceptance Review of Request for Alternate Disposal of Wastes Under 10 CFR 20.2002 (License DPR-28, Docket No. 50-271) ML19289A1292019-10-11011 October 2019 Email from Daniel Doyle to Mark Leyse Status of PRM-50-93 and PRM-50-95 ML19288A0292019-10-11011 October 2019 NRC Acceptance Review - Northstar Request for Exemption from 10 CFR 20, App G, Section Iii.E (License DPR-28, Docket No. 50-271) ML19198A2512019-06-20020 June 2019 Alternate Disposal Request - Rail Shipments (License DPR-28, Docket No. 50-271) ML19059A1782019-02-28028 February 2019 Acceptance Review Results for Relief Request No. EN-19-RR-1 to Use ASME Code Case N-831-1 for Entergy Fleet ML18289A3622018-10-11011 October 2018 Email from Daniel Doyle to Mark Leyse Status of PRM-50-93 and PRM-50-95 ML18127A5582018-04-25025 April 2018 Email to State of Vermont on Vermont Yankee Nuclear Power Station - Forthcoming Issuance of a License Amendment Regarding the Requirement for the VYNPS to Have a Cyber Security Plan ML18045A0862018-01-25025 January 2018 Email Request for Review of the Draft Safety Evaluation for Implementation of a Revised Emergency Plan at Vermont Yankee to Reflect an ISFSI-only Configuration ML17353A0092017-12-18018 December 2017 E-Mail from William Irwin, Vermont Department of Health to Y. Chen/Dsfm Response: Draft Environmental Assessment: Exemption Request for Vermont Yankee Independent Spent Fuel Storage Installation ML17289A4222017-10-16016 October 2017 E-Mail from Y. J. Chen to W. Irwin Draft Environmental Assessment Exemption Request for Vermont Yankee Independent Spent Fuel Storage Installation ML17257A0022017-09-14014 September 2017 Email to VY Shpo W Ltr Re VYNPS Exemption Load Campaign - Sept 2017 ML17229B4842017-08-16016 August 2017 Request for Supplemental Documentation to Support Review of the Physical Security Plan ML17219A0472017-08-0303 August 2017 8/03/2017, E-Mail from Y. J. Chen/Nmss to T. B. Silko/Vermont Yankee Regarding Need for Additional Information Entergy'S Exemption Request for Vermont Yankee ISFSI, Dated May 16, 2017 (ML17142A358) ML17144A0452017-05-23023 May 2017 5/23/2017, E-Mail to I. William/Vermont Dept. of Health from Y. Chen/Nrc Response: Draft Environment Assessment: Exemption Request for Vermont Yankee Independent Spent Fuel Storage Installation (W/Attachment Ltr to Address Comments on EA) ML17080A4752017-03-16016 March 2017 3/16/2017, E-Mail from I. William/Vermont Department of Health to Yen-Ju Chen/Dsfm/Sflb, Providing Comments on Draft Environmental Assessment for Entergy/Vermont Yankee'S Exemption from Requirement of 10 CFR 72.7 for CoC No. 72-1014, Amendm ML17055A6262017-02-24024 February 2017 Cover Email from VY Shpo W Concurrence on No Effects Determination ML17040A3372017-02-0909 February 2017 Email and Letter to Vermont Shpo ISFSI Exemption No Effects Determination ML17038A4682017-02-0707 February 2017 2/07/2017, E-mail from Yen-Ju Chen/NRC-DSFM to W. Irwin/Vermont Dept. of Health Draft Environment Assessment for Entergy/Vermont Yankee'S Exemption from Requirement of 10 CFR 72.7 for Certificate of Compliance No. 72-1014, Amendment 10 ML17012A2472017-01-11011 January 2017 E-mail - State of Vermont Comments Regarding Vermont Yankee'S 10 CFR 20.2002 Request ML16349A2492016-12-13013 December 2016 E-Mail to T. B. Silko/Entergy from Yen-Ju Chen/Dsfm Regarding Need for Supplemental Information for Entergy'S Exemption Request for Vermont Yankee ISFSI, Dated November 9, 2016 (ML16319A102) ML17013A2502016-12-12012 December 2016 Email Requesting Review of Draft EA and SER for Vermont Yankee Request to NRC for Alternate Disposal of Waste ML16231A0282016-08-11011 August 2016 Response to NRC Questions Related to Request for 20.2002 Disposal of Contaminated Water ML16231A2192016-07-28028 July 2016 Follow-up Questions Related to Entergy Request for 20.2002 Disposal of Contaminated Water ML16069A0952016-03-0303 March 2016 Request for 20.2002 Disposal, Request for Additional Information ML16053A5152016-02-17017 February 2016 Comment (037) of Emma Stamas on ANPR-26, 50, 52, 73, and 140 - Regulatory Improvements for Decommissioning Power Reactors ML15329A1802015-11-24024 November 2015 E-mail from J. Whited Draft RAIs Re Duke License Amendment Request to Adopt TSTF-523 (CAC Nos. MF6413 Through MF6422) ML15295A2132015-10-21021 October 2015 NRR E-mail Capture - VY RAI for Off-site Insurance Exemption (10 CFR 140.11) - MF3980 ML15289A6002015-09-24024 September 2015 La 3 - Vermont Yankee Draft Responses or Edits 9 24 15.docx ML15289A6012015-09-23023 September 2015 La 3 - Nrr_Vermont Yankee Nuclear Power Station Decommissioning Status.Docx ML15288A3532015-09-21021 September 2015 La 3 - VY Dtf LAR - Status ML15257A6172015-09-14014 September 2015 La 3 - Testing the New Profile for Vermont Yankee La 3 - Public ML15195A3592015-07-14014 July 2015 NRR E-mail Capture - Acceptance Review for Vermont Yankee Amendment -Revise Cyber Security Plan Implementation ML15289A0022015-06-17017 June 2015 La 3 - Question from Ma ML15289A5982015-06-0909 June 2015 La 3 - FW: Docket No. 50-271 (Vermont Yankee); June 5 2015 Letter from Vermont, Vynpc, and Gmp to NRC Attached ML15289A0072015-06-0505 June 2015 La 3 - Information Regarding Vermont Yankee Decommissioning Trust Fund Exemption ML15289A2432015-06-0404 June 2015 La 3 - FW: Docket No. 50-271 (Vermont Yankee); June 4 2015 Vermont Letter to NRC Attached ML15289A0062015-06-0404 June 2015 La 3 - FW: Information Regarding Vermont Yankee Decommissioning Trust Fund Exemption ML15288A3592015-06-0101 June 2015 La 3 - Vermont Yankee LA3 - Availability for Oral Argument ML15288A3602015-06-0101 June 2015 La 3 - Vermont Yankee LA3 - Availability for Oral Argument ML15288A3622015-06-0101 June 2015 La 3 - Vermont Yankee LA3 - Availability for Oral Argument ML15288A4822015-05-22022 May 2015 La 3 - Vermont Reply to NRC & Entergy Answers Re VY LA-3 ML15289A0042015-05-19019 May 2015 La 3 - New Proposal Dates for Phone Call with VT ML15289A0052015-05-11011 May 2015 La 3 - ML Numbers for Disbursement Letters for Vermont Yankee ML15289A5992015-05-0808 May 2015 La 3 - Call with State of VT ML15289A0032015-05-0707 May 2015 La 3 - Other than for Comanche Peak, ML15289A1252015-05-0606 May 2015 La 3 - FRN Review - VY Dtf Exemption ML15128A0232015-04-27027 April 2015 NRR E-mail Capture - Petitioners Response to Request for Comments on the Proposed Director'S Decision on the 2.206 Petition Regarding Financial Qualifications of Entergy 2021-03-15
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Richard Emch - VYNPS SAMA RAI Clarification Letter Page I From: "Hamer, Mike" <mhamer@entergy.com>
To: "Jessie Muir" <JMM7@nrc.gov>, <RLE@nrc.gov>
Date: 11/06/2006 1:25:13 PM
Subject:
VYNPS SAMA RAI Clarification Letter Jessie, Attached is a letter to provide clarification for several SAMA issues that were discussed with the VY License Renewal Team and the NRC during a teleconference on 10/26/06. Please contact me if you have any additional questions.
Mike Hamer Licensing Specialist Entergy Nuclear Vermont Yankee (802) 258-4226 mhamer@entergy.com CC: "Sullivan, Theodore A" <TSULLI2@entergy.com>, "Dreyfuss, John"
<jdreyfu @entergy.com>, "Mannai, David" <dmannai @entergy.com>, "YOUNG, GARRY G"
<GYOUNG4 @entergy.com>, "Lach, David J" <DLach @entergy.com>, "BUCKLEY, RICKY N"
<RBUCKLE @entergy.com>, "Yeh, Chaur Nan" <CYeh @ entergy.com>, "Palionis, Mark"
<mpalion@entergy.com>, "COX, ALAN B" <ACOX@entergy.com>, "Metell, Mike"
<hmetell @entergy.com>, "Gill, Jeanne" <jgill2 @entergy.com>, "Favara, John A" <J Favara @entergy.com>
Ic1\tempvvIuuuu1. IMF .. Page_111 Mail Envelope Properties (454F7DFC.5AA:17 :1450)
Subject:
VYNPS SAMA RAI Clarification Letter Creation Date 11/06/2006 1:24:02 PM From: "Hamer, Mike" <mhamer@entergy.com>
Created By: mhamer@entergy.com Recipients nrc.gov TWGWPO01 .HQGWDOO1 JMM7 (Jessie Muir) nrc.gov OWGWPO02.HQGWDO01 RLE (Richard Emch) entergy.com JFavara CC (John A Favara) jgill2 CC (Jeanne Gill) hmetell CC (Mike Metell)
ACOX CC (ALAN B COX) mpalion CC (Mark Palionis)
CYeh CC (Chaur Nan Yeh)
RBUCKLE CC (RICKY N BUCKLEY)
DLach CC (David J Lach)
GYOUNG4 CC (GARRY G YOUNG) dmannai CC (David Mannai) jdreyfu CC (John Dreyfuss)
TSULLI2 CC (Theodore A Sullivan)
Post Office Route TWGWPO01 .HQGWDO01 nrc.gov OWGWPO02.HQGWDO01 nrc.gov entergy.com Files Size Date & Time MESSAGE 337 11/06/2006 1:24:02 PM BVY 06-099 - VYNPS SAMA RAI Clarification Letter.PDF 165229 Mime.822 229580 Options Expiration Date: None Priority: Standard
IC-\tflP\UW1UUUU1l. I[Vl __Pag_ IJI ReplyRequested: No Return Notification: None Concealed
Subject:
No Security: Standard Junk Mail Handling Evaluation Results Message is eligible for Junk Mail handling This message was not classified as Junk Mail Junk Mail settings when this message was delivered Junk Mail handling disabled by User Junk Mail handling disabled by Administrator Junk List is not enabled Junk Mail using personal address books is not enabled Block List is not enabled
Entergy Nuclear Operations, Inc.
Vermont Yankee P.O. Box 0500
- Entergy 185 Old Ferny Road Brattleboro, VT 05302-0500 Tel 802 257 5271 November 6, 2006 Docket No. 50-271 BVY 06-099 TAC No. MC 9670 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Reference:
- 1. Letter, Entergy to USNRC, "Vermont Yankee Nuclear Power Station, License No. DPR-28, License Renewal Application," BVY 06-009, dated January 25, 2006.
- 2. Letter, Entergy to USNRC, "Vermont Yankee Nuclear Power Station, License No. DPR-28, License Renewal Application, Amendment 7," BVY 06-071, dated August 01, 2006.
- 3. Letter, Entergy to USNRC, "Vermont Yankee Nuclear Power Station, License No. DPR-28, License Renewal Application, Amendment 18, Response to Request for Clarification of SAMA RAI Responses," BVY 06-095, dated October 20, 2006.
Subject:
Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)
License Renewal Application, Amendment 21 Response to Request for Clarification of SAMA RAIs On January 25, 2006, Entergy Nuclear Operations, Inc. and Entergy Nuclear Vermont Yankee, LLC (Entergy) submitted the License Renewal Application (LRA) for the Vermont Yankee Nuclear Power Station (VYNPS) as indicated by Reference 1. On October 26, 2006, a teleconference was conducted with Entergy License Renewal Team representatives and the Nuclear Regulatory Commission (NRC) Environmental Auditors. The NRC requested clarification for several of the responses provided in Reference 2 and 3. These issues are addressed Attachment 1 to this letter.
This submittal does not contain new regulatory commitments.
Should you have any questions, please contact Mr. Dave Mannai at (802) 451-3304. I declare under penalty of perjury that the foregoing is true and correct, executed on November 6, 2006.
Sincerely,
-IV,,
Ted A. Sulliva")
Site Vice Prt1si~eit Vermont Yankee Nuclear Power Station cc: See next page
BVY 06-099 Docket No. 50-271 Page 2 of 2 cc: Mr. James Dyer, Director U.S. Nuclear Regulatory Commission Office O5E7 Washington, DC 20555-00001 Mr. Samuel J. Collins, Regional Administrator U.S. Nuclear Regulatory Commission, Region 1 475 Allendale Road King of Prussia, PA 19406-1415 Mr. Jack Strosnider, Director U.S. Nuclear Regulatory Commission Office T8A23 Washington, DC 20555-00001 Mr. Jonathan Rowley, Senior Project Manager U.S. Nuclear Regulatory Commission 11555 Rockville Pike MS-O-1 1 F1 Rockville, MD 20853 Mr. Richard Emch U.S. Nuclear Regulatory Commission 11555 Rockville Pike MS-O-1 1 F1 Rockville, MD 20853 Mr. James J. Shea, Project Manager U.S. Nuclear Regulatory Commission Mail Stop O8G9A Washington, DC 20555 USNRC Resident Inspector Entergy Nuclear Vermont Yankee, LLC P.O. Box 157 (for mail delivery)
Vernon, Vermont 05354 Mr. David O'Brien, Commissioner VT Department of Public Service 112 State Street - Drawer 20 Montpelier, Vermont 05620-2601 Diane Curran, Esq.
Harmon, Curran, Spielberg & Eisenberg, LLP 1726 M Street, N.W., Suite 600 Washington, D.C. 20036
BVY 06-099 Docket No. 50-271 Attachment 1 Vermont Yankee Nuclear Power Station License Renewal Application Amendment 21
VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION ATTACHMENT 1 10/26/2006 Teleconference Clarification Items A teleconference was held on 10/26/06 with the NRC and VYNPS License Renewal Team. During this call, the NRC requested additional information pertaining to fire and flood risk contributors to ensure that VYNPS evaluated each of the contributors for scenario-specific remedies, and did not find any that were cost effective (with exceptions as stated below).
RAI 5.e Clarification The clarification of response to the request for additional information (RAI) RAI 5.e in Amendment 18 indicated that there are now only 9 risk significant terms involving internal flooding initiators. As indicated in revised Environmental Report (ER) Table E.1-3, two of the flood scenarios are addressed by Phase II Severe Accident Mitigation Alternatives (SAMA) SAMA 47, "Shield injection system electrical equipment from potential water spray."
Flood-specific improvements identified by the Individual Plant Examination for External Events (IPEEE) have already been implemented to address specific flood scenarios.
The flood scenarios were systematically reviewed as part of the 2002 Probabilistic Safety Assessment (PSA) model update (in which the internal flood events model was updated) to determine if additional improvements could be identified to reduce the internal flood Core Damage Frequency (CDF) contribution. With the exception of the improvement which has been included as Phase II SAMA 47, no additional cost-beneficial alternatives were identified.
RAI 5.q Clarification There are eight (8) dominant fire initiated events. All of the associated fire compartments are equipped with fire detection, and all except two (2) of the fire compartments are protected by an automatic fire suppression system. The exceptions are the control room (control bldg 272' elev.) and the Control Rod Drive (CRD) repair room (reactor bldg 252'-
south elev.).
The control room is continuously occupied. An auto-suppression system would need to be acceptable with regard to health risks associated with continued occupation of the space. Some thought was given to use of a fixed auto-suppression system for the control room utilizing FM-200 (a replacement for the ozone depleting Halon) for the suppression agent. However, the current fire detection system may or may not be usable for actuation. In addition, some amount of sealing of the cabinets would be required.
Also, migration of the suppression agent within the panel enclosure would need to be considered. For example, on the main bench-board, there may be undesirable consequences associated with filling the entire enclosure with suppression agent because non-fire affected electrical contacts and circuits could be damaged. For these reasons an auto-suppression system for this space was judged to be inappropriate.
Rerouting of cables or relocation of equipment out of the control room is not practical due the need for a centralized control location.
Page 1 of 2 BVY 06-099 Docket 50-271
VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION ATTACHMENT 1 The CRD repair room is located on the south side of reactor building, on the 252' elevation. A water suppression system would not be practical since the main steam tunnel communicates with this room through an open door. A High Energy Line Break (HELB) which occurred in this room would likely cause the water suppression system to discharge, resulting in a flooding hazard. Likewise a C02 suppression system would require sealing of the room, which would have undesirable consequences in that this path is credited for pressure relief for a HELB within the main steam tunnel. For these reasons an auto-suppression system for this space was judged to be inappropriate.
Control cables for both emergency diesel generators and control cables for 2 of the 4 Safety Relief Valves (SRVs) are routed through this room. Since rerouting control cables would require extensive modifications, it was judged to be not cost beneficial.
Additional Clarification As noted in revised ER Table E.1-3, Phase I SAMAs including improvements to plant procedures, and installation of instrumentation to enhance the likelihood of success of operator action in response to accident conditions, have already been implemented. No additional Phase II SAMAs were recommended for this subject because potential improvements would involve major, and very costly, design changes. To automate these functions, significant design changes would be necessary to upgrade the Structures, Systems and Components (SSCs) relied upon for alternate injection from non-safety-class to safety-class. The firewater system components and support system relied upon for alternate injection would need to be upgraded to comply with seismic safety-class standards. Similarly, the John Deere diesel generator electrical switchgear would need to be upgraded to comply with electric safety-class standards. For these reasons, automation of the alternate injection system was judged to be not cost beneficial.
Page 2 of 2 BVY 06-099 Docket 50-271