ML19241B360

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Discusses Radiological Dose to Population Since 790328. Total Population Dose Since 790328 Is 2100 Man Rems as of 790404.Provides Dose Tabulation
ML19241B360
Person / Time
Site: Crane Constellation icon.png
Issue date: 04/05/1979
From: Barrett L
Office of Nuclear Reactor Regulation
To: Congel F, Vollmer R
Office of Nuclear Reactor Regulation
References
NUDOCS 7907160222
Download: ML19241B360 (3)


Text

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UNITED STATES

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3 NUCLEAR REGULATORY COMMISSION i

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WASHINGTON, D. C. 20555

'+, V April 5, 1979 12:00 MEMORANDUM FOR:

F. Congel/R. Vollmer, NRR Site FROM:

L. Barrett, E/W, NRR

SUBJECT:

RADIOLOGICAL UPDATE The population dose increment for 4/3 - 4/4 was 70 man-Rem per the NRC/ EPA / HEW group. The total population dose since 3/28 is 2100 man rems as of mid-day 4/4. The maximum individual dose remains under 100 mrem at the NE.

Also attached is the population data out to 50 miles used for th,e estimate.

We are working back calculations to estimate releases from TLD and iodine sampler data.

L. Barrett s

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f PROJECTED 1960 POPULATION DISTRIBUTION, 0-10 MILES THREE llILE ISLAND HUCLEAR STATION, UNIT 2 (FROM FIG. 2.1-5 of SAR)

Distarce (Miles)

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_ Sector 0-l 1-2 2-3 3-4 4-5 5 - 10

_0 - 10

.N 19 212 3,970 3,772 C5 11,840 20,228 NNE 55 75 169 480 373 11,223 12,375 NE 42 134 271 428 186 2,246 3,307 ENE 58 55 186 461 262 1,567 I

2,589 E

42 60 39 137 552 10,431 11,261

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ESE 6

36 149 214 236 2,809 3,450 1 -

1 SE 6

94 67 203 395 2,095 2,854 SSE 88 197 117 78 43 3,840 4,364 5

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136 817 1,317 12,190 14,460 SSW 84 98 584 217 752 6,883 8,610 SW 84 104 181 562 219 4,297 L

5,447 WSW 2'9 273 117 796 237 2,961 4,413 W

36 369 36 331 571 7,155 l

8,498 WNW 22 106 253 197 235 11,823 12,636 NW 39 106 64 41 1,177 29,482 30,909 NNW 48 98 1,240 942 1,9'1 16,632 20,881 658 2,017 7,579 9,676 8,891 136,474 l166,295 8

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THREE MILE ISLAND NUCLEAR STATION,IWIT 2

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Distance (Miles) i Total I

. Sector 10-20 20-30 30-40 40-50 10-50 N

12,663 9,005 8,941 47,588 78,197 NNE 18,240 6,826 14,478 45,115 84,659 NE 39,726 38,979 9,546 62,345 150,596 ENE 10,205 14,757 45,445 177,672 l 284,079 t

E 18,853 62,028 42,445 38,754 162,080 i

ESE 34,339 124,988 27,822 42,737 229,886 SE 20,152 10,000 10,600 26,958 67,710 SSE 44,204 10,774 15,097 66,763 136,838 l

S 111,002-14,648 13,477 75,781 214,908 t

SSW 31,917 44,031 18,596 37,729

, 132,273 l

SW 11,801 19,931 25,536 18,979 76,247 i

W5W 5,882 7,996 8,948 23,010 45,836 W

21,769 35,025 10,370 20,602 87,766 UNW 70,460 14,188 5,333 3,681 93,662 NW 99,593 9,308 9,970 12,630 131,501 NNW 26,482 10,517 7,256 12,866 57,121 Total 577,288 433,001 273,860 7.13,210 1,997,359

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