ML19322B246

Forwards Comments on Amends 30 & 32 to FSAR Re Meteorological Data in Response to AEC 721020 Request

ML19322B246
Person / Time
Site:	Oconee
Issue date:	10/26/1972
From:	Van Der Hoven COMMERCE, DEPT. OF, NATIONAL OCEANIC & ATMOSPHERIC
To:	Hendrie J US ATOMIC ENERGY COMMISSION (AEC)
References
R323, NUDOCS 7912020099
Download: ML19322B246 (3)

Text

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PILE CONSULTANT FROM: Em Dept cf Comm rco DATE OF DOC: DATE REC'D LTR MEMO RF2 OrEn Nac. Occ nic & Atmo:phsric Adnin Silver Spring, Md. 20910 , 10-26-72 11-7-72 x Tzaac Van der Hoven TO: ORIG CC OLfER E,NT AEC FDR I,0CAI, PDR J. M. Hendrie 1 signed CIASS: , h 0? INFO INPUT NO CYS REC'D CKiu 50 1 5 -269 50-270 50-287 DESCRIF2 ION: ENCLOSURES:

Ltr re our 10-20-72,1tr...trans the following- Addl Comments on Oconee Nuclear Sta. re Meteorological Data re Amdt # 30 & 32.

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~ , " #' %.,l UD. DEPARTMENT CF 3MMERCE 2 National Ocea:.ic and Atmospheric Administration

\., ,.J./ ENVIRONMENTAL RESEARCH LABORATOR!ES Consnents on Oconee Nuclear Station Unit 1 Duke Power Company Final Safety Analysis Report Amendment No. 30 dated March 10, 1972 Amendment No. 32 dated May 25, 1972 Prepared by Air Resources Environmental Laboratories 1 National Oceanic and Atmospheric Administration October 26, 1972 Amendment 30 contains new meteorological data for the period March 15, 1970, through March 14, 1972, during which Lake Keowee was filled with water and the wind calibration problems previously cited were resolved.

We consider these data to be the best available and representative of the site as it now exists and, consequently, have used the information .

as the basis for our diffusion analysis.  !

We understand that the location of the meteorological tower is still within a stand of tall trees. Because of the wooded nature of the ter-rain, we feel that the measurement of wind speeds at 150 feet above the ground and reduced by a logarithmic relationship to the 100-ft level would most nearly represent the ambient flow of air from the reactor complex at a height of 30 feet above the surface.

For the short-term (0-2 hours) release we estimate from the data pre- ,

sented in Table 2.1-1 that a relative concentration of 2 x 10-4 see m'3 l will be exceeded 5 percent of the time at the exclusion distance of 1600 l

m. We assumed a building wake f actor of cA = 1270 m2 . Since neither wind persistence or monthly wind statistics were presented, we have not made diffusion analyses of the 24-hour and 30-day periods.

For the average annual concentration we have concluded that the maximum value will occur at the exclusion distance with winds occurring from the s north resulting in a value of 3 x 10-6 see m-3,

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October 26, 1972 Silver Spring, Maryland 20910

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'cu Dr. Joseph M. Hendrie i NOV7 1972 M-Deputy Director for Technical Review Directorate of Licensing, USAEC 9

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Dear Dr. Hendrie:

O This refers to the letter of October 20, 19 72, from R. C. DeYoung, Assistant Director for Pressurized Water iteactors, Directorate of Licensing, requesting additional comments on the following:

Oconee Nuclear Station Unit 1 Duke Power Company Final Safety Analysis Report Amendment No. 30 dated March 10, 1972 Amendment No. 32 dated May 25, 1972 These comrsents are attached.

Sincerely, a '

h 0,q v d s? ,1- / " 1% g Isaac Van der Hoven, Chief Air Resources Environmental Lab.

Air Resources Laboratories Att'chment ec: E. H. Markee, USAEC I

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