BVY 13-059, Commitment for Implementation of Multi-source Dose Assessment Capability

Commitment for Implementation of Multi-source Dose Assessment Capability

ML13182A078
Person / Time
Site:	Vermont Yankee
Issue date:	06/26/2013
From:	Wamser C Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY 13-059
Download: ML13182A078 (3)

Text

Entergy Nuclear Operations, Inc.

Vermont Yankee Eni§ ite 320 Governor Hunt Road Vernon, Vermont 05354 Tel: (802) 257-7711 Christopher J. Wamser Site Vice President BVY 13-059 June 26, 2013 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

SUBJECT:

Commitment for Implementation of Multi-source Dose Assessment Capability Vermont Yankee Nuclear Power Station Docket No. 50-271 License No. DPR-28

REFERENCE:

Nuclear Energy Institute (NEI) letter (J. E. Pollock) to NRC, (J. T.

Wiggins), Commitment for Implementation of Multi-Unit Dose Assessment Capability,dated March 14, 2013

Dear Sir or Madam:

This letter provides information regarding multi-source dose assessment capability for Vermont Yankee (VY) in response to the referenced communication from NEI.

The Emergency Response Organization at VY currently uses the Off-site Dose Projection System (ODPS) in the Control Room and the Meteorological Plume Assessment Computer (METPAC) in the Emergency Operations Facility for modeling offsite dose assessments. These computer programs are used to estimate the dose consequences in the emergency response sectors for input parameters (source term, meteorological conditions, etc.) based on a single release point. In the event of a scenario with concurrent releases from more than one release point, separate dose analysis runs can be performed with METPAC using the applicable data inputs for each release point. The results of the separate dose consequence analyses can be combined manually to provide an estimate of total dose consequence. Instructions for performing this type of analysis are provided in the dose assessment emergency response procedure (OP 3513, Evaluation of Off-site RadiologicalConditions).

Consistent with the referenced letter, Entergy Nuclear Operations, Inc. plans to implement a new computer program at VY that has the capability to perform a multi-source dose consequence analysis. This new software program is identified as a regulatory commitment with a completion date of not later than December 31, 2014.

P~L

BVY 13-059 Page 2 of 2 This letter contains a new regulatory commitment which is identified in the attachment.

Should you have any questions concerning the content of this letter, please contact Mr.

Robert J. Wanczyk at (802) 451-3166.

Sincerely, CJW/JTM

Attachment:

List of Regulatory Commitments cc: Mr. William M. Dean Regional Administrator U. S. Nuclear Regulatory Commission, Region I 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 U. S. Nuclear Regulatory Commission Attn: Director, Office of Nuclear Reactor Regulation One White Flint North 11555 Rockville Pike Rockville, MD 20852 NRC Senior Resident Inspector Vermont Yankee U. S. Nuclear Regulatory Commission Attn: Mr. Richard Guzman Mailstop - 08C2A 11555 Rockville Pike Rockville, MD 20852-2378 Mr. Christopher Recchia, Commissioner VT Department of Public Service 112 State Street - Drawer 20 Montpelier, VT 05620-2601 U. S. Nuclear Regulatory Commission ATTN: J. T. Wiggins Director Nuclear Security and Incident Response Mailstop - 4D22A 11555 Rockville Pike Rockville, MD 20852-2378

Attachment to BVY 13-059 Page 1 of 1 List of Regulatory Commitments The following table identifies those actions committed to by Entergy Nuclear Operations, Inc. in this document. Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments.

TYPE SCHEDULED (Check One) COMPLETION COMMITMENT ONE- DATE TIME CONTINUING (If Required)

ACTION COMPLIANCE Entergy Nuclear Operations, Inc. plans to implement a new computer program at X December 31, 2014 VY that has the capability to perform a multi-source dose consequence analysis.