ML19262B962

Forwards Applicant Analysis of Need to Overexcavate Unit 2 Foundation Area.Activity Raises No Significant Safety Matter Re Contentions 3 & 16 or Other Aspect of Station Safety Evaluation

ML19262B962
Person / Time
Site:	Black Fox
Issue date:	01/02/1980
From:	Gallo J ISHAM, LINCOLN & BEALE
To:	Purdom P, Shon F, Wolfe S Atomic Safety and Licensing Board Panel
Shared Package
ML19262B963	List: ML19262B962 ML19290C640 ML19290C645
References
NUDOCS 8001220292
Download: ML19262B962 (2)

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'7s ISHAM, LINCOLN & BEALE

'/, COUNSELORS AT LAW

.- 8050 s 7La STR E ET, N. W. SEVE NTH FLOOR WASHINGTON, D. C. 2OO3 6

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TE LEPHON E 202-833-9730 CHICAGO OFFICE ONE FIRST NATIONAL PLAZA FORTY-SECONO FLOOR CHICAGO,ILLINOsS 60603 T ELE PHON E 312-558-7500 T E LE N; 2- 628 8

% January 2, 1980 lb ^

Sheldon J. Wolfe, Esquire Mr. Frederick J. Shon, Member Atomic Safety and Licensing Atomic Safety and Licensing Board Panel Board Panel U.S. Nuclear Regulatory U.S. Nuclear Regulatory Commission Commission Washington, D.C. 20555 Washington, D.C. 20555 Dr. Paul W. Purdom, Director Environmental Studies Group Drexel University 32nd and Chestnut Streets Philadelphia, Pennsylvania 19104 Re: In the Matter of the Application of Public Jervice Company of Oklahoma, Associated Electric Cooperative, Inc. and Western Farmers Electric Cooperative (Black Fox Station, Units 1 and 2), Docket Nos. STN 50-556 and STN 50-557 Gentlemen:

I advised the Licensing Board and parties on October 23, 1979 with respect to the need to overexcavate the foundation area for Black Fox Station, Unit 2. It was stated in this notification that additional analyses were being performed concerning this matter and that they would be provided to all concerned when the analytical work was completed.

The information is now available and it is enclosed with this letter. Two analyses have been conducted. One assesses the strength of a mass fill of lean concrete-as a foundation material as compared with the natural rock struc-ture, and the other evaluates the effect of this relatively 1785 359 8001220 Q9L

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thick concrete fill on the dynamic responses of th'e Lnit 2 safety-related structures. The enclosure, which consists of.

Mr. Ewing's letters of December 12 and Octobec 19, 1979 to the NRC Staff and the attached material organized in the format of the Black Fox PSAR and designated as subsection 3.8.5, is self-explanatory and it need not be restated here.

The Applicants conclude, based on the enclosed analyses, that the overexcavation activity raises no matter of any safety significance with respect to Contentions 3 and 16 or any other aspect of the safety evaluation for the Black Fox Station.

Sincerely, oseph Gallo One of the attorneys for the Applicants cy: Service List w

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