ML17326A429

Submits Statistical Rept of Exposures for 1978.Errors Discovered in 790305 Submittal.Data Reanalysis Has Shown Differences Re Number of Individuals & Distribution of Doses

ML17326A429
Person / Time
Site:	Cook
Issue date:	09/21/1979
From:	Shaller D INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
Shared Package
ML17326A427	List: ML17326A426 ML17326A429
References
NUDOCS 7912280524
Download: ML17326A429 (2)

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'A yzfp INDIA/N 8 MICHIGA/If PD tVER CONPA IJV Y DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, AIichigan 49106 (616) 4654901 September 21, 1979 Executive Director for Operations U. S. Nuclear Regulatory Commission Mashington, D. C. 20545 Gentlemen:

During a review of data Used to assemble the statistical report of exposures as required by 10CFR20.407(a)(2) and 10CFR20.407(b) for the year 1978 (transmitted to you previously by letter dated March 5, 1979) it became apparent that there may have been one or more errors coamitted in the assembly of the data. A reanalysis of the data has shown slight differences in the number of individuals monitored as well as the distribution of the doses reported as follows:

The total number of individuals for whom monitoring was required by 10CFR20.

202(a) during the calendar year 1978 was 1777.

The results of the monitoring performed were distributed as follows:

No measureable exposure . 979 Measureable exposure less than 0.100 R em. 314

0. 10 to 0.25 Rem. 134 0.25 to 0.50 Rem. 117 0.50 to 0.75 Rem. .86 0.75 to 1.0 Rem . .49 1.0 to 2.0 Rem. .83 2.0 to 3.0 Rem. .15 3.0 to 4.0 Rem. ~ ~ . 0 5.0 to 6.0 Rem. . 0 6.0 to 7.0 Rem. ~ ~ . 0 7.0 to 8.0 Rem. ~ ~ . 0 8.0 to 9.0 Rem. . 0 9.0 to 10.0 Rem . . 0 10.0 to 11.0 Rem. . 0 11.0 to 12.0 Rem. . 0 Greater than 12.0 Rem . ~ ~ . 0 D. V. Shaller

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