ML19339B006

Forwards Safety Evaluation Re Implementation of Recommendations for Auxiliary Feedwater Sys.Requests Response to Two Unresolved Items Identified in Rept within 45 Days

ML19339B006
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	10/23/1980
From:	Clark R Office of Nuclear Reactor Regulation
To:	Goodwin C PORTLAND GENERAL ELECTRIC CO.
Shared Package
ML19339B007	List: ML19339B006 ML19339B009
References
TAC-11715, TAC-44654, NUDOCS 8011060143
Download: ML19339B006 (2)

Text

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1. og UNITED STATES 8

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October 23, 1980 p

Docket No. 50-344 Mr. Charles Goodwin, Jr.

Assistant Vice President Portland General Electric Company 121 SW Salmon Street Portland, Oregon 97204

Dear Mr. Goodwin:

Our letter to you of October 3,i979, fomarded our requirements regarding the auxiliary feedwater system at Trojan Nuclear Plant. These requirements were identified during the course of the NRR Bulletins and Orders Task Force review of operating reactors following the accident at Three Mile Island Unit No. 2.

These requirements are also identified in NUREG-0611, " Generic Evaluation of Feedwater Transients and Small Break Loss-of-Coolant Accidents in Westinghouse-Designed Operating Plants." You responded to this letter on November 26 and December 31, 1979, February 5, July 1, and July 25,1980.

Our evaluation of your responses is contained in the enclosed Safety Evaluation Repcrt(SER). You will note that there are two unresolved items identified in this report (GS-5 and Additional Long Term Recommendation 5), and two items for which our review has not been completed (Additional Short Term Recommendation 3 and GL-5). You are requested to respond to the unresolved items within 45 1

days of your receipt of this letter.

Based on discussions with your staff, we urderstand that you have now modified the auxiliary feedwater system to provide self-cooling for the steam-driven auxiliary feedwater pump and have also added low suction pressure protection for both pumps. Therefore, our SER is somewhat out of date in certain areas since it is based on the information provided in your written submittals.

You are requested to include an update of the progress you have made with auxiliary feedwater system modifications in your respons,e to the unresolved items discussed above.

Please contact us if you have any questions cone + +., t,is m d ier.

Sincerely, bert A. Clark, Chief Operating Reactors Branch #3 Division of Licensing

Enclosure:

SER cc w/ encl:

See next page 8 011060 /$

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O Mr. Charles Goodwin, Jr.

Portland General Electric Company

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Mr. J. W. Durham, Esquipe Donald W. Godard, Supervisor Vice President and Corporate Counsel Siting and Regulation i

Portland General Electric Company' Oregon Department of Erergy

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l 121 S.W. Salmon Street Labor and Industries Building Portland, Oregon 97204 Room 111 Salem, Orego.n 97310 Colu'mbia County Courthouse

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Law Library, Circuit Court Room

'St. Helens, Oregon 97501 Michael Malmros. Resident Inspector U. S. Nuclear Regulatory Commission Trojan Nuclear Plant i

P. O. Box 0 Rainier, Oregon 97043 i

Robert M. Hunt, Chairman i

i Board of County Conmissioners Columbia County St. Helens, Oregon g7051 Director, Technical Assessment Divisien Office of Radiation Programs (AW-459)

U. S. Environmental Procection Agency Crystal Mall #2 Arlington, Virginia 20450 o

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