ML20044A547
| ML20044A547 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 06/26/1990 |
| From: | Wessman R Office of Nuclear Reactor Regulation |
| To: | Tremblay L VERMONT YANKEE NUCLEAR POWER CORP. |
| References | |
| RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 9006290193 | |
| Download: ML20044A547 (4) | |
Text
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UNITED STATES -
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WASHING TON, D. C. 20655.
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June 26, 1990 Docket No. 50-271-l Mr..L. A. Tremblay, Senior Licensing Engineer Vermont Yankee Nuclear Power Corporation Engineering Office-580 Main Street Bolton, Massachusetts 01740-1398 q
Dear Mr. Tremblay:
SUBJECT:
VERMONT YANKEE NUCLEAR POWER PLANT - TEMPORARY WAIVER i
0F COMPLIANCE FROM TECHNICAL SPECIFICATION TABLE 3.2.6 - NOTE 1.
By letter dated June 15, 1990 you informed the NRC that certain post-accident monitoring instruments listed in Table 3.2.6 of the Vermont Yankee Technical
' Specifications (TS) did not fully meet the separation criteria of Regulatory Guide (RG)1.97.
Subsequentl condition for operation (LCO)y, you placed the plant in a 30-day limitin9 which would require a plant shutdown on June-28, 1990,'if the criteria of RG 1.97 could not be met. This condition was found,.
i as a result of a Vermont Yankee Nuclear Power Corporation (VYNPC) self-initiated review. You requested an extension of the LCO until your planned outage in i
early September 1990.
+
The post-accident instruments of concern which are Type A variables, listed in Table 3.2.6, monitor the following parameters:
Drywell Atmospheric Temperature Torus (Wetwell) Pressure Torus Water Temperature and Torus Air Temperature Your letter' dated June 15, 1990, stated that-the cables which do not fully shortrunofcable,(2)inanon-harshenvironmentand(3)(1)inarelatively meet the intent of RG 1.97, in the above four cases, are:
in a non-missile environment. You also stated that all instrument loops are currently functional and that the probability that both redundant instrument loops would be rendered unavailable as a result of not meeting the separation criteria of-RG 1.97 before the September outage is extremely low. The staff agrees with this analyses.
The only hazard that appears remotely plausible would be a fire in the cable-
-vault.
In subsequent discussions with you it was further established that the cable vault, which-houses the cables in question, is protected by a fire suppression and fire detection system that was recently declared operable. The cable vault was also subject to and passed a CO2 integrity test. Additionally, the cable vault is currently subject to a two hour roving fire watch, which
-will continue pending NRC review of your submittal of the fire suppression and
-detaction system.
905'6590193 900626 ADOCK0500g1 DR
Mr. L. A. Tremblay, Senior Licensing Engineer Vermont Yankee cc:
Mr. J. ' Gary Weigand Chairman, Board of Selectmen President & Chief Executive Officer Town of Vernon Vermont Yankee Nuclear Power Corp.
Post Office Box 116 R.D. 5. Box 169 Vernon, Vermont 05353-0116 Ferry Road Brattleboro, Vermont 05301 Mr. Raymond M. McCandless Vermont Division of Occu)ational Mr. John DeVincentis, Vice President and Radiological Healt)
Yankee Atomic Electric Company Administration Building 5B0 Main Street.
Montpelier, Vermont 05602 Bolton, Massachusetts 01740-1398 Honorable John J. Easton Attorney General Stete of Vermont 109 State Street Montpelier, Vermont 05602 Vermont Public Interest Research Group, Inc.
43 State Street Montpelier, Vermont 05602 Diane Curran, Esq.
Regional Administrator, Region I Harmon, Curran & Tousley U.S. Nuclear Regulatory Comission 2001 S Street, N.W., Suite 430 475 Allendale Road Washington, D.C.
20009 King of Prussia, Pennsylvania 19406 James Volz, Esq.
R. K. Gad, III Special Assistant Attorney General Ropes & Gray Vermont Department of Public Service One International Place 120 State Street Boston, Massachusetts 02110 Montpelier, Vermont 05602 i
Mr. W. P. Murphy, Senior Vice President, G. Dana Bisbee, Esq.
Operations Office of the Attorney General Vermont Yankee Nuclear Power Corporation Environmental Protection Bureau R.D. 5. Box 169 State House Annex Ferry Road 25 Capitol Street Brattleboro, Vermont 05301 Concord, New Hampshire 03301-6397 Mr. George Sterzinger, Comissioner Atomic Safety and Licensing Board-Vermont Department of Public Service U.S. Nuclear Regulatory Commission
-120 State Street, 3rd Floor Washington, D.C. 20555 Montpelier Vermont 05602 Mr. James P. Pelletier Public Service Board Vice President - Engineering L
State of. Vermont Vermont Yankee Nuclear Power Corporation 120 State Street P.O. Box 169. Ferry Road t
1 Montpelier, Vermont 05602 Brattleboro, Vermont 05301
s Mr. L. A. Tremblay Vermont Yankee CC:
Mr. Gustave A. Linenberger, Jr.
Robert M. Lazo, Chairman Administrative Judge Atomic Safety and Licensing Board.
Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comission U.S. Nuclear Pegulatory Comission Washington, D.C. 20555 Washington, D.C.
20555-Frederick J. Shon Resident inspector Administrative Judge Vermont Yankee Nuclear Power Station Atomic Safety and Licensing Board U.S. Nuclear Regulatory Comission U. S. Nuclear Regulatory Commission P.O. Box 176 Washington, D.C. 20555 Vernon, Vermont 05354 Jerry Harbour John Traficonte Esq.
Administrative Judge Chief Safety Unit Atomic Safety and Licensing Board Office of the Attorney General U. S. Nuclear Regulatory Comission One Ashburton Piece, 19th Floor Washington, D.C. 20555 Boston, Massachusetts 02108 Geoffrey M. Huntington, Esquire Office of the Attorney General Environmental Protection Bureau State House Annex 25 Capitol Street Concord, New Hampshire 03301-6397 Chr.rics Bechhoefer, Esq.
Administrative Judge Atomic Safety and Licensing Board U.S. Nuclear Reaulatory Comission Weshington, D.C.
20555 Dr. James H. Carpenter f.dministrative Judge Atomic Safety and Licensing Board U.S. Nuclear Regulatory Comission Washington, D.C.
20555 Adjudicatory File (2)
Atomic Safety and Licensing Board Panel Docket U.S. Nuclear Regulatory Commission Washington, D.C. 20555
- y
'- June 26, 1990 You proposed in your June 15, 1990, letter to separate the cables in accordance l
with the separation requirements during the September 1990 scheduled outage.
i l
These instruments are all currently functional and are not needed for.
l automatic or control functions during normal olant operations. They serve.
i l-to provide post-accident monitoring information to the operator so he can take L
specific manually controlled actions in the unlikely event of an accident. You stated,,and we agree, that the probability of the loss of these instruments in i
a circumstance where they would be required is. extremely small in the approximately 120. day period of the extended LCO.
You also stated, and we agree, that plant modifications while at power may pose an undue challenge, q
Based on the above considerations, we believe that an extension of the LCO until the scheduled outage in early September 1990 is justified. We therefore, grant a waiver of compliance from the Table 3.2.6, Note 1, 30. day j
LCO, and extend the out-of. service time until the forthcoming planned outage of September 1990.
I Your letter of June 15, 1990, together with our evaluation above, constitutes the basis for this waiver of compliance. The review was performed by M.
L
- fairtile, i
Sincerely, Original signed by:
Richard H. Wessman, Actino Assistant Director for Region 1 Reactors i
Division of Reactor Projects 1/11 j
cc:
i See next page DISTRIBUTION:
.DocketMle 40e2713 Jon Johnson, Region 1 NRC & Local PDRs M. Slosson 1
'T.Murley/F.Miraglia T.Mendiola j
-J.Partlow J.Liberman j
C.Rossi S.Varga B.Boger M.Rushbrook 3
M.Fairtile V.Rooney 8
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- DATE 206/9/90
- 06/N/90
- 06/%/90
- 06/94/90
- 06/M/90 OFFICIAL RECORD COPY Document Name:
VY WAIVER OF COMPLIANCE' i
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