ML061500449

Email: Question to the Applicant (PD)

ML061500449
Person / Time
Site:	Oyster Creek
Issue date:	05/01/2006
From:	Parczewski K Office of Nuclear Reactor Regulation
To:	Ashley D Office of Nuclear Reactor Regulation
References
%dam200606, TAC MC7624
Download: ML061500449 (3)

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ID.

Ashley -'Question to the applicant Page 11 From:

Krzysztof Parczewski To:

DJA1 Date:

05/01/2006 1:50:59 PM

Subject:

Question to the applicant

I cAtemp\\GW}OOOO1.TMP Flage l i Mail Envelope Properties (44564A7A.4C7: 18: 34874)

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Question to the applicant 05/01/2006 1:50:50 PM Krzysztof Parczewski KIP@nrc.gov Recipients nrc.gov OWGWPOO1.HQGWDOO1 DJA1 (DJA1)

Post Office OWGWPOO1.HQGWDOO1 Route nrc.gov Files Oyster Creek LR-Ql.wpd Options Expiration Date:

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Reply Requested:

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Concealed

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Size 2753 Date & Time 01 May, 2006 11:56:06 AM None Standard No None No Standard

D. Ashley - Oyster Creek LR-Q1.wpd Page 1 I In the response to RAI B.2.3-1 the applicant stated that:

RStator cooling water conductivity is maintained less than 0.5 pS/cm. The Generator shall be shutdown immediately if the stator cooling water conductivity reaches 10 pS/cm."

The value for the generator shutdown is therefore 20 times higher than the allowable maximum water conductivity. What is the basis for such a large divergence between these two values?

File: Oyster Creek LR-Q1.wpd