ML20024G706

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Informs That 740513 Response to NRC 740404 RAI Re PRT Unacceptable Because Addl Unauthorized Mods Included
ML20024G706
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 06/25/1974
From: Goller K
US ATOMIC ENERGY COMMISSION (AEC)
To: Mayer L
NORTHERN STATES POWER CO.
References
NUDOCS 9104250418
Download: ML20024G706 (2)


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Docket File JUN J 1974 AEC PDR I

Branch Reading Local PDR i

Docket No. 50-263 ACRS (16)

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OGC, Stewis DLZiemann JJShea Northern States Power Company RMDiggs ATTN:

Mr. L. O. Mayer, Director of TJCarter Nuclear Support Services SHanauer 414 Nicollet Mall JHendrie j

Minnespolis, Minnesota 55401 AGiasbusso VStello Gentlem n RDeYoung VMoore i

Your May 13, 1974 response to our April 4,1974 request for additional l

inforiestion related to the Prompt Relief Trip (PRT) system is

.i unacceptable because contrary to earlier understandings with General j

Electric representatives, you plan no modifications to the system you proposed by letter dated January 23, 1974, to:

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minimize the possibility of inadvertent actuation of more

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than one safety relief valve, and t

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provide testability of the PRT system in accordance with l

Regulatory Guide 1.22.

J Until suitable changes are submitted for our review, we cannot approve completion of the PRT installation in Monticello.

Sincerely.

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Ql Karl R. Coller Assistant Director frir Operating Reactors I

Directorate of Lienn91ng cc:

See nes.t P fe Dross I

INovak DTondi DBasdekas SVarga l

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Form AEC.3IS (Rev. M)) AICM 0240 Tr u. s. novsawusur pnewtime o. rects se74.sas.tes 9104250418 740625 PDR ADOCK 05000263 P

PDR

i Northern States Power Company June 25, 1974 cci Gerald Charnoff Mr. Kenneth Dzugan, Director Shaw, Pit tman, Pot ts & Trowbridge City of St. Paul Pollution Control 910 - 17th Street, N. W.

Services Washington,' D. C.

20006 100 East 10th Street St. Paul, Minnecota 55102 Arthur Renquist, Esquire Vice President - Law Anthony Z. Roisman, Esquire Northern States Power Company Berlin, Roisman and Kessler 414 hicollet Mall 1712 N Street, N. W.

Minneapolia, Minnesota 55401 Washington, D. C.

20036 Howard J. Vogel, Esquire Environmental Library of Minnesota Knittle & Vogel 1154 East Crain Exchange Building 412 South 4th Street Minneapolis, Minnesota 55415 Steve Cadler, P.<E.

2120 Carter Avenue St. Paul, Minnesota 55108 Mr. Daniel L. Ficker Assistant City Attorney 647 City Hall St. Paul, Minnesota 55102 Warren R. Lawson, M. D.

Secretary & Executive Officer State Department of Health 717 Delaware Street, S. E.

Minneapolis, Minnesota 55440 Sandra S. Cardebring, Esquire Minnesota Pollution Control Agency 1935 W. Cout.tv Road B2 Roseville, Minnesota 55113 Dr. Ed Pryzina Minnesota Pollution Control Agency 1935 W. County Road B2 Poseville Minnesota 55113 l

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