ML19273B367

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Forwards Archaeological & Historical Site Surveys Resulting from Proposed Changes to Transmission Routes,W/Comments & Responses by Util
ML19273B367
Person / Time
Site: River Bend  Entergy icon.png
Issue date: 03/06/1979
From: Humphreys L
GULF STATES UTILITIES CO.
To: Regan W
Office of Nuclear Reactor Regulation
Shared Package
ML19273B363 List:
References
RBG-6196, NUDOCS 7904060185
Download: ML19273B367 (18)


Text

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    • NUCLEAR REGULATORY COMMISSION

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SAFETY EVALUATICN SY THE CrF ICE CF N; CLEAR REACTOR REGULATICN SUPPCRTING AENDMENT NO. 39TO FACILITY CPERATING LICENSE N3. NPF-1 PCRTLAND GENEPAL ELECTRIC CC"PANY THE CITY CF EL' GENE, CREGON PACIFIC POWER AND LIGHT COMPANY TROJAN NUCLEAR PLANT DOCKET No. 50-344 Introduction By letter dated September 28, 1978, Portland General Electric Company, the City of Eugene, Oregon, and Pacific Power and Light Company (the licensee) requested changes to the Technical Specifications appended to Facility Operating License No. NPF-1 for operation of Trojan Nuclear Plant in Columbia County, Or.egon.

The proposed changes involve modified action to be taken in the event a penetration fire barrier should become non-functional, and a new diesel fuel sampling requirement for the diesel-generator day tanks.

Discussion and Evaluation Non-Functional Fire Barrier Penetration fire barriers are fire barriers that existThe wnere electrical penetration (or other) penetrations must be made through walls.

fire barrier prevents the spread cf fire across the Darrier to prevent a fire from spreading from one safety-related ared to another in a reasonable period of time.

Present Technical Specifications governing the action to be t3 ken while a penetration fire barrier is non-functional require the licensee to establish a continuous fire watch on at least one side of the af fected penetratial within one hour.

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The licensee preposes to modify this action. The required 3Ction wculd be a function of the con::ustible loading in the area of the penetration fire barrier, as follows: If the ccabustible loading is greater than one 1b/sq. f t. of equivalent wocc, the licensee would provice either (1) a continuous fire watch on at least one sice of tre penetration witnin one hour, or (2) provice (also within one hour) fire detector protection, a temporary fire barrier of approved material (mininum fire rating of one hour), and a fire watch patrol to inspect the area at least once per hour.

If the combustible loading is less than (or ecual to) one 1::/sq. f t. of equivalent wood, the licensee would establish an hourly fire watch patrol. The licensee would also provide either fire detection protection or a temporary fire barrier.

We have reviewed the licensee's proposed Technical Specification change request which would allow various alternatives to a continuous fire watch when penetration fire barriers are damaged or non-functional. These alternatives provide an equivalent or improved level of protection compared to a continuous fire watch and assure that fires will not propagate between fire areas despite a penetration fire barrier being damaged or non-functional . We find that this change will not degrade the overall protection afforded by the fire protection program, and is acceptable.

Sampling Requirements for Diesel-Generator Tanks The second change would adopt diesel fuel sampling requirements for the diesel-general day tanks. Similar requirements are already in effect for the other diesel storage and day tanks (the auxiliary feedwater pump diesel tank, the diesel storage tank, and the fire pump diesel storage tank). Since the Technical Specifications currently reference different year versions of the same diesel fuel sampling standard

( ASTM D975), we suggested that the licensee adopt the 1978 version ( ASTM 0975-78) of this standard everywhere it appears for consistency. The licensee has agreed to this change.

Adoptinq this .amolinq stand ud ill orovide assurance that il l sa e ty -

relstM1 11esel twl is -f too r">i 41 rol qu il i tj fo/ diesel ce( ra t1on, and 1 ", ICCoptii'l-Environmonta! Connidorar We have determined that tno ime m:mo n t does not author ro a cnargo in effluent type 3 or tota; amounts ner an incretso in pc or l o. o ' aN .11.

not result in any signif: cant gov:ranmental impact Ha ini; m i .:e this determination, we have further concluded that the amendmont insolee3 an action which 1 3 insignificant frcm the standpoint of environmort3' impact, and pursuant to 10 Cf R 651. S( d )( 4 ), that an environmental impact statement or negative declaration and environmental impact appraisal need not be prepared in connection with the issuance of the amendment.

Conclusion We have concluded, based upor the considerations discussed atove, that:

(1) because the amendment does not involve a significant increase in the probability or consequences of accidents previously considered and does not involve a 3ignificant decrease in a safety mar jin, the amencment does not involve a significant hazards consideration; 2) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner; and (3) such activities will be conducted in compliance with the Commission's regulations and the issuance of the amendment will not be inimical to the Common defense and security or to the health and safety of the public.

Date. March 9, 1979