BVY 11-015, License Renewal Application Supplemental Information
| ML110540373 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 02/15/2011 |
| From: | Michael Colomb Entergy Nuclear Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| BVY 11-015 | |
| Download: ML110540373 (5) | |
Text
vEntergy Entergy Nuclear Operations, Inc.
Vermont Yankee 320 Governor Hunt Rd Vernon, VT 05354 Tel 802 257 7711 Michael J. Colomb Site Vice President BVY 11-015 February 15, 2011 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
REFERENCES:
License Renewal Application Supplemental Information Vermont Yankee Nuclear Power Station Docket No. 50-271 License No. DPR-28
- 1.
Letter, Entergy to USNRC, "License Renewal Application," BVY 06-09, dated January 25, 2006
Dear Sir or Madam:
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. of this letter provides supplemental information to the LRA to address questions discussed with the NRC staff on a teleconference held on February 15, 2011.
This letter contains no new regulatory commitments.
Should you have any questions or require additional information concerning this submittal, please contact Mr. Robert Wanczyk at 802-451-3166.
I declare under penalty of perjury, that the foregoing is true and correct.
Executed on February 15, 2011.
Sincerely,
[MJ 0/PLC]
j2
-I7
BVY 11-015 / Page 2 of 2 Attachments: 1. License Renewal Application Supplemental Information cc:
Mr. Eric J. Leeds, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission One White Flint North 13H16M 11555 Rockville Pike Rockville, MD 20852-2738 Mr. William M. Dean, Regional Administrator U.S. Nuclear Regulatory Commission, Region 1 475 Allendale Road King of Prussia, PA 19406-1415 Mr. Robert Kuntz, Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North 11 F1 11555 Rockville Pike Rockville, MD 20852-2738 Mr. James S. Kim, Project Manager Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 08C2A Washington, DC 20555 USNRC Resident Inspector Entergy Nuclear Vermont Yankee 320 Governor Hunt Road Vernon, Vermont 05354 Ms. Elizabeth Miller, Commissioner VT Department of Public Service 112 State Street - Drawer 20 Montpelier, Vermont 05620-2601
BVY 11-015 Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)
License Renewal Application Supplemental Information
BVY 11-015 / Attachment 1 / page 1 of 2 Vermont Yankee Nuclear Power Station License Renewal Application - Supplemental Information Vermont Yankee Nuclear Power Station (VYNPS) provides the following supplemental information to address questions discussed with the NRC staff on a teleconference held on February 15, 2011.
Background
VYNPS provided additional information related to the Neutron Absorber Monitoring Program in License Renewal Application (LRA) supplemental information letters dated October 14, 2010 (BVY 10-052), December 21, 2010 (BVY 10-058), February 4, 2011 (BVY 11-010) and February 10, 2011 (BVY 11-013). The LRA indicated that the Water Chemistry Control - BWR Program was the only aging management program for neutron absorbing materials in the spent fuel racks. This letter provides administrative changes to the LRA to clarify that the Neutron Absorber Monitoring Program is also credited as an aging management program for neutron absorbing material in the spent fuel racks.
The list of aging management programs in Section 3.3.2.1.5 of the LRA is revised to read as follows:
3.3.2.1.5 Fuel Pool Cooling Systems Aging Management Programs The following aging management programs manage the effects of aging on fuel pool cooling systems components.
Service Water Integrity System Walkdown Water Chemistry Control - BWR Neutron Absorber Monitoring Section 3.3.2.2.6 of the LRA is revised to read as follows:
3.3.2.2.6 Reduction of Neutron-Absorbing Capacity and Loss of Material due to General Corrosion Loss of material and cracking are aging effects requiring management for Boral spent fuel storage racks exposed to a treated water environment. These aging effects are managed by the Water Chemistry Control - BWR Program.
The Neutron Absorber Monitoring Program manages the reduction in neutron-absorbing capacity and loss of material.
BVY 11-015 / Attachment 1 / page 2 of 2 Item number 3.3.1-13 of LRA Table 3.3.1 is revised to read as follows:
Table 3.3.1: Auxiliary Systems, NUREG-1801 Vol. 1 Item Aging Aging Further Number Component Effect/Mechanism Management Evaluation Discussion Programs Recommended 3.3.1-13 Boral, boron Reduction of neutron-Plant specific Yes, plant The Water steel spent fuel absorbing capacity specific Chemistry Control -
storage racks and loss of material BWR program neutron-due to general manages loss of absorbing sheets corrosion material. The exposed to Neutron Absorber treated water or Monitoring Program treated borated manages reduction water of neutron-absorbing capacity and loss of material.
See Section 3.3.2.2.6 The aging management evaluation for the neutron absorber (Boral) components in LRA Table 3.3.2-5 is revised to read as follows:
Table 3.3.2-5: Fuel Pool Cooling Systems Aging Effect Aging NUREG-Table Component Intended 1801 Type Function Material Environment Requiring Management Vol 2 1
Notes Management Programs Item Item Neutron Neutron Aluminum/boron Treated Cracking Water 3.3.1-H absorber absorption carbide water (ext)
Chemistry 13 (Boral)
Control -
BWR Neutron Neutron Aluminum/boron Treated Loss of Water VII.A2-3 3.3.1-E absorber absorption carbide water (ext) material Chemistry (A-89) 13 (Boral)
Control -
BWR Neutron Neutron Aluminum/boron Treated Loss of Neutron VII.A2-3 3.3.1-A absorber absorption carbide water (ext) neutron-Absorber (A-89) 13 (Boral) absorbing Monitoring capacity/Loss I__
I_
of material I
References:
1.
Letter, Entergy to USNRC, "License Renewal Application Supplemental Information," BVY 11-013, dated February 10, 2011
- 2.
Letter, Entergy to USNRC, "License Renewal Application Supplemental Information," BVY 11-010, dated February 4, 2011
- 3.
Letter, Entergy to USNRC, "License Renewal Application Supplemental Information," BVY 10-058, dated December 21, 2010
- 4.
Letter, Entergy to USNRC, "License Renewal Application Supplemental Information," BVY 10-052, dated October 14, 2010