ML20136J440

Provides Lee Prefiled Testimony Re Data Underlying Generation of Map.Related Correspondence

ML20136J440
Person / Time
Site:	Harris
Issue date:	01/03/1986
From:	Johari Moore NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD)
To:	Bright G, Carpenter J, Kelley J Atomic Safety and Licensing Board Panel
References
CON-#186-722 OL, NUDOCS 8601130377
Download: ML20136J440 (2)

Text

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)M NUCLEAR REGULATORY COMMISSION WASHINGTON D. C. 20555 gg; II

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%*****/,7, y January 3, 1986 c- d4N g P/2:35 ChhkfCF James Li Kelley, Chairman Mr. Glenn 0. Bright B$ hh%7;

' Administrative Judge . Administrative Judge '

Atomic Safety and Licensing Board. Atomic Safety and Licensing Board-U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Comission Washington,-DC. 20555 Washington, DC 20555 Dr. James H Carpenter-Administrative. Judge-

. Atomic Safety and Licensing Board U.S. Nuclear Regulatory Comission Washington, DC 20555

-In the Matter of Carolina Power and Light Company and North Carolina Eastern Municipal Power Agency (Shearon Harris Nuclear Power Plant, Units 1 and 2)

Docket Nos. 50-400.and 50-401 O L-

Dear Administrative Judges:

Under: separate. cover.I have provided the Board with a copy of the map generated by Dr. Lee and requested by the Board. . A discussion of

, - the data underlying the generation of the map, and how the. map was-

-' .; generated is contained in Dr. Lee's prefiled testimony following Tr. 9690

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in answer,to Question 7 at Pages 22-23. In-describing what is contained on the map Dr. ; Lee. testified in part as follows:

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. The output of each siren run, consisting of estimated siren sound pressure levels in dBC at each one of the 112-polar grid points is fed individually into a surface interpolation and mapping program to generate a finer mesh (at-grid interval of 150 meters) over the entire EPZ. Since the sirens.are of the rotating type, the-individual siren sound levels at a given receptor cannot be reliably synchronized to achieve the logarithmic additive effect; instead, the maximum of multiple siren sound level contributions is selected. This maximal selection process was performed at each of the grid mesh points-(215 x 215 points). And final contours were drawn through this mesh at intervals of 5 db increments using

'a standard least-square weighted contouring routine. The resulting contour map was scaled and overlaid on a household location map supplied by Carolina Power & Light. The number of houses located within 10 db increment contours was then counted.

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.A copy of the map has also been provided to Mr. Eddlerran and to Applicants.-

Sincerely, S k NID $

Janice E. Moore Counsel for NRC Staff cc: -Service List

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