3-1-2013 Letter from VY to NRC Plan for Reliable ... - State of Vermont

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BVY 13-016Page 2 of 3decay heat and control of containment pressure following events that result in loss ofactive containment heat removal capability or prolonged SBO as described inAttachment 2 of Reference 1.For the purposes of compliance with Order EA-12-050, Order Modifying Licenses withRegard to Reliable Hardened Containment Vents, Entergy plans to use a wetwell vent.The enclosure contains design information as of the writing of this letter, much of whichis still preliminary, pending completion of on-going evaluations and analyses. Due to thesynergy between the design of the RHV system and the equipment to be utilized in theDiverse and Flexible Coping Strategies (FLEX) required by Order EA-12-049, some ofthe design details are still being developed. As further design details and associatedprocedure guidance are finalized, revisions to the information contained in the enclosurewill be communicated to the NRC in the 6-month updates required by the Order.Should you have any questions regarding this submittal, please contact Mr. Robert J.Wanczyk at (802) 451-3166.This letter contains no new regulatory commitments.Ideclare under penalty of perjury that the foregoing is true and correct; executed onFebruary 28, 2013.Sincerely,CJW /JTMEnclosure: Vermont Yankee Overall Integrated Plan for Reliable HardenedContainment Ventscc: Mr. William M. DeanRegional AdministratorU. S. Nuclear Regulatory Commission, Region 12100 Renaissance Boulevard, Suite 100King of Prussia, PA 194062713U. S. Nuclear Regulatory CommissionAttn: Director, Office of Nuclear Reactor RegulationOne White Flint North11555 Rockuille PikeRockville, MD 20852
SVY 13-016Page 3 of 3NRC Senior Resident InspectorVermont YankeeU. S. Nuclear Regulatory CommissionATTN: Richard GuzmanMail Stop 080211555 Rockville PikeRockville, MD 20852-2378U. S. Nuclear Regulatory CommissionATTN: Robert J. Fretz Jr.OWFN -Mailstop4A15A11555 Rockville PikeRockville, MD 20852-2378U. S. Nuclear Regulatory CommissionATTN: Robert L. DennigOWFN -Mailstop1OE111555 Rockville PikeRockville, MD 20852-2378Mr. Christopher Recchia, CommissionerVT Department of Public Service112 State Street —Montpelier, Vermont 05620-2601Drawer20
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3-1-2013 Letter from VY to NRC Plan for Reliable ... - State of Vermont

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