ML19290C774

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Discusses Overexcavation for Unit 2 & Resulting Concrete Fill.Request NRC Opinion of Whether Discharge of All 19 Safety Relief Valves W/Random Actuation Constituted Most Severe Case of Safety Relief Valve Loads
ML19290C774
Person / Time
Site: Black Fox
Issue date: 01/23/1980
From: Farris J
FELDMAN, HALL, FRANDEN, REED & WOODWARD
To: Davis L
NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD)
References
NUDOCS 8002130181
Download: ML19290C774 (1)


Text

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FELDMAN, HALL, FRANDEN, REED & WOODARD ATTORNEYS AT LAW SUITE SIS ENTERPRaSE SusLDING TULSA. OKLAHoM A 74103 TELErwoNe ss3 79 29 ARE A CODE t l e R AYMOND G FELDMAN WILLI AM S, HALL W. E GREEN ROSE RT A FRANDEN (1859 1977)

JE R RY REED JOMN R WOODARD fil JOSEPH R F ARRIS

7. W IMLOFF January 23, 1980 raoM As A. MANN ly

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Mr.

L. Dow Davis t

Office of the Executive Legal Director

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United States Nuclear Regulatory Comm.

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Re:

Black Fox Station ro Docket Nos. STN 50-556 c,

STN 50-557 (b

Dear Dow:

Regarding the over-excavation for Unit 2 and the concrete fill necessitated thereby, we have noted that in PSO's revised PSAR sheets (page 3. 8-55), PSO selected the SRV loads for their analysis.

If my memory serves me right, at the last hearings there was considerable debate about whether or not the discharge of all 19 valves with random actuation was the most severe case.

For example,

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it seems to me there was some disagreement as to whether or not seismic /loca loads should be superimposed on the SRV actuation case.

In your ultimate response to my letter of December 27, 1979, could you address this point from the Staff's viewpoint?

Looking forward to seeing you in Tulsa in the near future, I remain Ver ru yours,.

Joseph R. Farris a

JRF/se

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cc:

Mrs. Carrie Dickerson

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Mr. Dale Bridenbaugh

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Black Fox Mailing List 8002130 e.

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