ML19331E097
| ML19331E097 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 08/12/1980 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Kay J YANKEE ATOMIC ELECTRIC CO. |
| Shared Package | |
| ML19331E098 | List: |
| References | |
| NUDOCS 8009050497 | |
| Download: ML19331E097 (3) | |
Text
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NUCLEAR REGULATORY COMMISSION
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August 12, 1980 Docket No. 50-29 Mr. James A. Kay Senior Engineer - Licensing Yankee Atomic Electric Company 25 Research Drive destborough, Massachusetts 01581
Dear Mr. Kay:
By letter dated February 23, 1980, you were requested to provide information regarding primary coolant system pressure isolation valves.
The objective of this 10 CFR 50.54(f) letter was to identify those plants ahich have either or both of the valve ^ configurations found in WASH-1400 (Event V) to be significant risk contributors to an intersystem LOCA which results in a core melt accident.
'Je have confirmed that the two specific Event V valve configurations do r.ot exist at your f acility.
This is based upon the evaluation of your response to our February letter as well as the review of previcusly cocketed information (Enclosure).
Based on this, our activities regarding these valve configurations have been finalized for your facility.
In addition to these Event V valve configurations, we are continuing cur efforts to review other configurations located at high pressure /
low pressure system boundaries for their potential risk contribution to an intersystem LOCA which may result in a core melt accident.
Therefore, further activity regarding the broader topic of intersystem LOCA's may be expected in the future.
Your time and effort in closing out the Event V portion of the inter-system LOCA concern are appreciated.
Sincerely, A
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$pDennis M. Crutchfield, Chief U
Operating Reactors Branch #5 Division of Licensing Enclosure and ccs:
See next page 8000050
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~ 2-August l'2,1980
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Enclosure:
Franklin Research Center Technical Evaluation Report, " Primary Coolant System Pressure ' Isolation Valves,"
dated July 21, 1980.-
cc w/ enclosure:
See next page -
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o Mr. Janes A. Kay. August 12, 1980 cc w/ enclosure: -
Mr. James E. Tribble, President Yankee Atomic Electric Conpany 25 Research Drive Westborough, Massachusetts 01581 Greenfield Community College 1 College Drive Greenfield, Massachusetts 01301 Chairaan Board of Selectmen Town of Rowe Rowe, Massachusetts 01367 Energy Facilities Siting Council 14th Floor One Ashburton Place Boston, Massachusetts 02108 Director, Technical Assessment Division Office of Radiation Prorrans (AW-459)
U. S. Environmental Prot >ction Agency Crystal Mall #2 Arlington, Virginia 20460 U. S. Environmental Protection Agency Region I Office ATTN: EIS C0ORDINATOR JFK Federal Building Boston, Massachusetts 02203 Resident Inspector Yankee Rowe Nuclear Power Station c/o U.S. NRC Post Office Box 28 Monroe Bridge, Massachusetts 01350 I
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