ML19323B935

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Submits Preliminary Analysis Results of Containment Bldg Water Samples
ML19323B935
Person / Time
Site: Crane Constellation icon.png
Issue date: 08/31/1979
From: Jun Lee
NRC - TMI-2 OPERATIONS/SUPPORT TASK FORCE
To: Jay Collins
NRC - TMI-2 OPERATIONS/SUPPORT TASK FORCE
References
TASK-TF, TASK-TMR NUDOCS 8005140436
Download: ML19323B935 (2)


Text

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NUCLEAR REGULATORY COMMISSION s [ ',"

I WASHINGTON, o. C. 20555 S

o 4 8 August 31, 1979

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i MEMORANDUM FOR:

J. T. Collins, Deputy Director TMI-2 Support j

FROM:

J. Y. Lee TMI-2 Support

SUBJECT:

PRELIMINARY ANALYSIS RESULTS OF TMI-2 CONTAINMENT BUILDING WATER SAMPLES We have obtained the following preliminary analysis results of TMI-2 con-tainment building water samples from Oak Ridge National Laboratory.

(1) When transferred samples into glass bottles, all three samples read 700 to 800 mR/hr contact.

(2) No apparent oil or grease in any of three samples.

(3) Samples 1(top) and 2 (middle) were clear with slight yellow tint.

i (4) Sample 3 (bottom) was green in co'or with a lot of visible solids.

I (5) Sample 3 (bottom) settled relatively quickly, but were bulky. When Sec were dried, solid weighted only a few mg.

1 (6) Preliminary analysis of solids showed dominant isotopes of Cerium and Lanthanum.

(7) Analysis of liquid showed all three samples contained essentially the sama activity:

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Cs - 137 175 - 180 uC1/cc 6

uC1/cc I

fYg

' *of Cs - 134 40 uCi/cc

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La - 140 0.1 i.

I - 131 0.03 uCi/cc Gr Q fo7

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y (8) Containment inner seal plate (4" diameter) contamination analysis showed:

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o" J. T.

Collins, Deputy Director -

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Relative Fraction l

Total (uC1/C1)

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Nuclide (uC1) of Core' 4

Te - 129M 23.6 2 x 10 Cs - 137 2.07 2.5 x 10-6

-6 Cs - 134 0.47 3.4 x 10 l l 9

Ru - 103 0.58 1.2 x 10~7 o

s Ru

  • 106 0.42 1.7 x 10-7 Zr - 95 0.09 5.0 x 10-9 Hb - 95 1.73 5.4"x 10"O I

-3 I - 131

. 33'

1. 9 x 10 Sb - 124 0.005 7.6 x 10-6 Sb - 125 0.45 4.0 x 10-6 LA - 140 0.019
4. 0 x 10~

-5 Ag - 110 0.08 5.0 x 10 Ce - 141 0.057 1.2 x 10-8 Ce - 144 O. 21..

1.4 x 10*8 NOTE:

Autoradiography identified four (4) hot spots above general r

contamination.

(9)

Elevations of sample collections were:

First sample 290' 6" u

Second sample 286.0' f

Third sample 282' 9" Containment Building Bottom 282' 6" I

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l J. Y. Lee

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l Tl4I-2 Support l -

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'cc:

H. Denton,-NRR R. Keirrig, IE - Tiil R. Vollmer,' HRR W. Rayirond, IE --Tl4I /

T. Hurphy, NRR R. Bangart, NRR 1

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