BVY 13-099, Notification of Canceled Regulatory Commitment

Notification of Canceled Regulatory Commitment

ML13308B903
Person / Time
Site:	Vermont Yankee
Issue date:	10/25/2013
From:	Wamser C Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY 13-099
Download: ML13308B903 (2)

Text

Entergy Nuclear Operations, Inc.

Vermont Yankee 320 Governor Hunt Rd Vernon, VT 05354 SEntergy Tel 802 257 7711 Christopher J. Wamser Site Vice President BVY 13-099 October 25, 2013 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Notification of Cancelled Regulatory Commitment Vermont Yankee Nuclear Power Station Docket No. 50-271 License No. DPR-28

REFERENCES:

1. Letter, VY to USNRC, 'Technical Specification Proposed Change No. 263 - Supplement No. 30 Extended Power Uprate -

Response to Request for Additional Information," BVY 05-072, dated August 1, 2005

2. Letter, USNRC to VY, "Issuance of Amendment to Renewed Facility Operating License Re: Change to Licensing Basis Regarding Station Blackout (TAC No. MF0422)," dated August 15, 2013

3. NEI 99-04, Revision 0, "Guidelines for Managing NRC Commitment Changes," dated July 1999

Dear Sir or Madam:

In Reference 1, Vermont Yankee Nuclear Power Station (VY) made a commitment to periodically review the interfaces with the operator of the Vernon Hydro Station (VHS), located adjacent to Vermont Yankee and credited as our Alternate AC (AAC) power source for Station Blackout (SBO) Rule compliance. The following summarizes a change to a VY commitment made in Reference 1.

The commitment in Reference 1 states:

"Entergy has establishedadministrativecontrols to assure performance of a once per operatingcycle tabletop review of the proceduresthat complete the actions to repowera VYNPS 4KV bus from the VHS. Pursuantto discussions with co-host REMVEC, a system-wide annualtabletop review will take place in October 2005. During this meeting Entergy will lead a tabletop review of all actions requiredto support restorationof 4KV AC to VYNPS. This review will review the interfaces with the operatorof VHS and the regionalgrid operatorto verify that roles and responsibilitiesand timelines are understoodand that there have been no changes that would impact the assumption in the VYNPS SBO coping strategy. Entergy will also provide the participantswith f

BVY 13-099 / page 2 of 2 additionalinsights regarding offsite power issues for nuclearpower stations including plant response to and consequences of a SBO."

The VHS tie line was the credited AAC source for VY compliance with 10 CFR 50.63 (Station Blackout Rule) at the time this commitment was created.

By License Amendment No. 258 (Reference 2) the NRC approved a change to the VY licensing basis Which credits the new Station Blackout Diesel Generator as the AAC source for compliance with the SBO Rule. This is an on-site generator fully within the control of plant personnel and not reliant upon an off-site tie line to the nearby hydro station, its switchyard or the associated ties to the area power grid.

This commitment is being cancelled as the VHS tie line is no longer relied upon as the AAC power source credited for compliance with 10 CFR 50.63 at VY. Thus, periodic coordination meetings with the hydro station operator and electrical grid personnel is no longer necessary for this function as it now resides with an on-site source.

This letter serves to update the docket relative to our cancellation of a prior commitment. No NRC action is requested on this issue.

This commitment change was evaluated in accordance with the VY procedure for implementing the industry guidance contained in Reference 3 and determined to not impact nuclear safety.

Should you have any questions or require additional information concerning this submittal, please contact Mr. Coley Chappell at 802-451-3374.

Sincerely

[CJW/JTM]

cc: Mr. William M. Dean, Regional Administrator U.S. Nuclear Regulatory Commission, Region 1 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 Mr. Douglas Pickett, Project Manager Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 08C2A Washington, DC 20555 USNRC Resident Inspector Vermont Yankee Mr. Christopher Recchia, Commissioner VT Department of Public Service 112 State Street - Drawer 20 Montpelier, Vermont 05620-2601