ML19317F551

Requests Addl Info to Complete Evaluation of App I.Response Due 15 Days After Receipt of Ltr

ML19317F551
Person / Time
Site:	Davis Besse
Issue date:	08/19/1976
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Roe L TOLEDO EDISON CO.
References
NUDOCS 8001150870
Download: ML19317F551 (3)

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' L. Hulman NRC PDR W. Kregar Local PDR G. Knighton AUG 1 S 1976 LWR 1 File E. Markee R. C. DeYoung P. Cota F. J. Williams W. Burke J. Stolz F. Cardile

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E. Hylton Cocket 30. $J-346 J '

R. Heinenan, SS D. Ross, SS J. Knight, SS Toledo Edison Company R. Tedesco, SS ATT:i: Mr. Lot, ell E. Roe H. Denton, DSE Vice President, Facilities Develocment V. A. Moore, DSE Edi n Plaza R. H. Vollmer, DSE 300.tadison Avenue M. L. ERnst, DSE Toledo, Ohio 43652 W. P. Gammill, DSE ELD Genclanen:

IE (3) iCQ' EST FOR INFCR1ATION REQUIRED BY APPE:OIX I bcc:

J. R. Buchanan, NSIC J

(UAVIS BESSE :0 CLEAR pct!E?. STATIcel, UNIT 1)

T. B. Abernathy, TIC We nave completed our acceptance review of your sutnittal for necting tne requirements of Section V.B of Appendix I; 10 CFR 69.

We fi"d that additional infomatica is required in order that be may ccaplete our evaluation of Apcendix I for tne Davis Sesse :iucicar Power Station, L'ni t 1.

A list of tite requests for additional infomation is enclosed.

In order for the staff to complete its review in a timely manner, we request that your response be su!xaitted no later than 15 days af:cr receipt of this letter.

If you are unable to acet this schedule, ulease infom as as soon as possible.

Please contact us if you have any cuestions regarding th9 er. closed requests for infomation.

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Sincerely, Qv

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n John F.Stols O

John F.- Stolz, Chief y

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J Light Water Reactors Branch ;lo.1 Division of Project '4anagement

nclosure:

Request for Additional Infomation cc: See page 2 LWR LWRd o

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MG I 9 G76 Toledo Edison Company cc:

.ir. Donald H. Hauser, Esa.

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. The Cleveland Electric Illuminating Compa* y P. O. Box 5000 Cleveland, Ohio 44101 Gerald Charnoff Shaw, Pittman, Pott.s and Trowbridge 91017th Street, !I. '.!,

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Fuller, Senay, Henry and Hodge 300.iadison /. venue Toledo, Gr.io 436C4 0

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Form AEG318 (Rev. f-33) ABCM 0240

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ENCLOSURE REQUEST FOR ADDITIO!'AL INFORMATION TOLEDO EDIS0N COMPANY APPENDIX I ANALYSIS FOR DAVIS BESSE NUCLEAR STATION, UNIT 1 DOCKET NO. 50-346 1.

Iten 6.3 of Table A6 indicates that there will be 4 purges per year at 50,000 cfm for 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> and ventilation for 504 hours0.00583 days <br />0.14 hours <br />8.333333e-4 weeks <br />1.91772e-4 months <br /> /yr at 50,000 cfm during refueling. Justify these parameters in light of the fact that NUREG-0017, Section 2.2.10, states that operating experience at plants similar to Davis Besse indicates a need to vent the containment approximately 20 times per year

.during power operation.

2.

Do the release points indicated in Table A3 have deflectors or diffusers associated with them?

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