ML19241B314
| ML19241B314 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/06/1979 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| NUDOCS 7907160053 | |
| Download: ML19241B314 (7) | |
Text
1 4 50-320 Pupulation Dose Estimates 3/28 - 4/6 from IRACT files 552353 7
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SUMMARY
OF POPULATION DOSE (Man-Rem) FOR TMI ACCIDENT 3/28/79 - 4/6/79 l___
0 - SoMiles Cumulative Period 0-10 Miles 10-15 Miles Total Sum
==-
3/28 - 4/1 906 870 T 776 6
4/1 - 4/2 25 12 36 1,813 4/2 -4/3 123 (109)*
129 (133)*
252(242)*
2,053 4/3 - 4/4 36 34 70 2,125 4/4 - 4/5 24 24 48 2, 73 3 4/5 - 4/6 41 39 80 2,253
- Recal on April 6, 1979 by JB 5523:14
- ..:=:
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==
TMI ACCIDENT Summary of Maximum Individual Dose (TLD Data)
=
Location:
0.4 Miles East of Site
..g-Cumulative Total Period (1979)
Dose (mrem)
Dose (mrem) 3/28-3/29 45 45 3/29-3/31 26 71 3/31-4/1 8.(8.2)*
- 79. (79.2) 4/1-4/2 0.(0.1)*
79.(79.3) 4/2-4/3 1 (0.54)*
80.(80.3) 4/3-4/4 0 (0.19)*
- 80. (80.3) 4/4-4/5 1.7(1.5)*
82.(81.53) 4/5-4/6 1.7(1.5)*
83.(83.03)
- Stn EIA ("ES") mR reading less 0.19 mR day Bkgd.
(gi-k+
=. - -.
_....._ /
From:
Lake Barrett on 4/9 as of noon on 4/8 Dose Estimates
[._
Total population (50-mile radius) dose through noon April 8, is estimated to be approximately 2400 man-rem based on survey results, w
9 Incremental population dose from April 7-April 8 0-10 mile radius 23 man-rem 10-50 mile radius 21 man-rem 2-*
The estimated dose to hypothetical, maximally exposed individual
==
continuously present at point approximately 0.5 miles NE of plant-4100 millirem
~~-
or
(--85 millirem)
The dose from milk pathway (Iodine-131) ot an infant's thyroid is approximately 1 to 2 millirem, assuming milk was drunk with iodine concentrations that have been reported, i.e., raw milk, not pasteurized or processed.
Doses from iodine inhalation (assuming at concentrations that have been
[._5 reported) dose to infant thyroid - 410 mrem
=~
552356
~~
ESTIMATE OF COLLECTIVE DOSES TO POPULATION WITHIN 50 MILES Date 4/3/79 3/28-4/3/79 Daily Incremental Cumulative Whole body collective dose (man-rem) 250 2000 Average dose to individual (mrem) 0.125 1.0 cw LQ Max, dose to individual at North Gate (mrem)
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8 Murray Mile 9
=
Job N 4/7/79
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A-1%5 POPULATION AND INDIVIOUAL DOSES The following is the estimated population and average invividual dose out to 50 miles for March 28 to April 3.
To include April 4 and April 5 add about 15%
Radius
< man-rem Population Average Ind. Dose (miles)
Mrem 0-1 29.3 658 d5 1-2 77.1 2,017 38 2-3
<08.9 7,579 27 3-4 175.2 9,676 18 4-5 132.9 8,891 15 5-10 780.7 136,474 6
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0-5 miles - 622 mem-rem average individual dose 21 mrem population 28,821
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- 3..
5-10 miles 780 mem rem - average ind dose 6 mrem
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~ ~ ~ " '
population 136,474 0-10 1402 mrem-rem - average ind dose 8 mrem population 165,295
~~
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0-50 miles
$2,000 mem rem - average ind. dose 1 mrem population
- 2,000,000.
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