ML20205P508
| ML20205P508 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 03/30/1987 |
| From: | Rooney V Office of Nuclear Reactor Regulation |
| To: | Capstick R VERMONT YANKEE NUCLEAR POWER CORP. |
| References | |
| NUDOCS 8704030292 | |
| Download: ML20205P508 (3) | |
Text
m MAR 3 0 1987 -
Docket No. 50-271 MrL R. W. Capstick Licensing Engineer Vermont Yankee Nuclear Power
. Corporation 1671 Worcester Road Farmingham, Massachusetts 01701
Dear Mr. Capstick:
Please substitute the enclosed page 3 for page 3 of the evaluation enclosed w'ith your copy of the NRC letter to Vermont Yankee ' dated February 18, 1987.
Sincerely, M M ped by
~
Vernon L. Rooney, Project Manager BWR Project Directorate #2 Division of BWR Licensee
Enclosure:
As stated cc w/ enclosure:
See next page DISTRIBUTION
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Mr. J. G. Weigand
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'Mr. W. P. Murphy, Vice fresideat &
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President & Chief Executive Officer
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Vermont Yankee Nuclear Power Corp.
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R. D. 5, Box 169 R.-D. 5, Box 169
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4 Ferry Road -
Ferry Road Brattleboro, Vermont 05301, Brattleboro, Vermont 05301 v
Mr. Donald Hunter, Vice President
.,Mr. Gerald Tarrant, Coninissioner' e
Vermont Yankee Nuclear Power Corp.
Vermont' Depcrt'nenf of Public}rvic#
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1671 Worcester Road 120 State S'creet Framingham, Massachusetts 01701 Montpelier, Vermont 05502
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New England Coalitior,on Publi.c Service Bunid Nuclear Pollution State of Vermont.
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120 State Street Hill and Dale Farm Montpelier,Terenti05602
- V R. D. 2, Box 223 Putney, Vermont 05346
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Vern.ont Yarkee D& commissioning t 1
V Mr. Walter Zaluzny
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Chairman, Board of Selectmarp Box 5$
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Post Office Box 116 Montpetter, Vermont M-Vernon, Vermont 05354 Resident Inspector Mr. J. P. Pelletier, Plant Manager U. S. Nuclear Pegulatory Commission Vermont Yankee Nuclear Powr Corp.
Post Office Brx 176 i
Post Office Box 157 Ye*non, Verworit 05354 Vernon, Vermont 05354
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Vermont Pubisc Int rest Mr. Raymond N. McCandless Research Group', Inc q
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43 State Street Vermont Division of Occupatiomtf s
Mnntpelie., Verment 06602
& Radiological Health Administration Building
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10 Baldwin Strest Regional Administritor, Regicg I.!
Montpelier, Vermont 05602 U. S. Nuclear Regtilat(ry Comissi'm-
' '631 Park Avenue
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y Honorable John J. Easton King of Prussia, Perssylvattia ~19406.
l State of Vermont Ellyn R. Wiss
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' i Attorney General 109 State Street Harrron & Weiss Montpelier, Vermont 05602 2001 S. Strr:et, N.-W.
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%3shingtcn, D.C. 20009-J125 John A. Ritscher, E' squire 3
Ropes & Gray Offjce of the Attarrey General i
225 Franklin Street
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i Boston, Massachusetts 02110 19;X Floor
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<u itam by one additional fuel cycle (prior to startup for Cycle 14, cyproximately winter 1988/89). The staff finds that the licensee's p;oposal is reaionaale in view of the safety significance of the
.r.cntainment safety activities. Therefore, the staff concludes that there 1 adequate justification for modification of the Commission Order.
la the licensee's subtrittal of August 29, 1986 it states that Vermont
- ankee has completed the NUREG-0737, Supplement 1, commitment relating to
'DCRDR requirements, but that by letter, dated March 31, 1986 Vermont Yankee provided a proposed schedule for implementing all DCRDR HED modifications, assuming no " unforeseen difficulties in the design, procurement and installation efforts associated with each of the respective modifMations," during the next two successive outages (i.e.,
prior to Cycle 13 and 14 startup).
In the licensee's letter dated December 19, 1986, it stated that VYNPC believes that the HED modifications proposed from the DCRDR effort for Vermont Yankee are of relatively minor operational signi_ficance and generally relate to modifications necessary to conform to specific human factors criteria and that its belief has been
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substantiated by the results of VYNPC's Control Room Dynamic Evaluation O
performed in the fall of 1986. Due to the higher safety significance the licensee has placed on tre Containment Safety Study, the licensee's limited resources to support Yermont Yankee's continuing CSS effort and completion of ell DCRDR tasks, the licensee foresees a one cycle schedular extensien to its commitment for DCRDR HED modifications. This will result in coroleting these.90Fifications prior to startup for Cycle 15. The staff finds th proposed schedule for implementing DCRDR modifications is acceptable.
The Containment N fety activities which YYNPC described involve engineenng stu4fes preparatory to implementing the alternate drywell spray path, inproving the capability of the diesel fire pump for drywell spray and core cooling, and hardening the containment wetwell vent path.
By letter dated February 5,1987, the licensea has committed to installation of these containment safety improvements, as appropriate, based on;the results of the engineering studies, if the requested relief is granted, and has costitted to provide a schedule for implementation upon completion of thi engineering design effort in July 1987.
3.0 c.0NCLUSION kith respect to $he relief requested in the letter dated December 19, 1986:
1.
The staff finds the requast for extending the schedular requirement for the SPDS to be fully operational and operators trained to be acceptable.
The SPDS is to be functional at startup for Cycle 14.
The SPDS n to be fully operational prior to the end of Cycle 14 (including s*.artup testing, system verification and validation, and
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operators trained)'.
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