ML20246L732

Advises That 880407 Samples Mistakenly Discarded Before Analyses for naturally-occurring Radionuclides in Ra-226 & Ra-228 Series Performed.Analyses Results of Radioactivity Levels in Well Waters Encl

ML20246L732
Person / Time
Site:	Braidwood
Issue date:	03/17/1989
From:	Paperiello C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Corbin T AFFILIATION NOT ASSIGNED
References
NUDOCS 8903240256
Download: ML20246L732 (3)

Text

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c MAR 171989 Docket No. 50-456 Docket No. 50-457:

Mrs. Thelma L. Corbin R. R. 2,_ Box-117

'Wilmingtun, IL.60481-i Dear.Mrs. Corbin.

L In response to your inquiry concerning possible offsite effects of the operation of the Braidwood Generating Station, Dr R. B. Holtzman of my-staff.

_ col.lected well water samplesion April 7, 1988, at the following locations:

City.of Braidwood, Well No. 1 City of Braidwood, Well No. 2 City'of Braidwood, Well No. 3 E

Corbin Farm, shallow drinking water well

.j Corbin Farm, deep wash; water _well Corbin Farm, sand point irrigation well

-The samples were submitted to the'NRC Reference Laboratory,.the Radiological and Environmental Sciences' Laboratory.(RESL), Idaho Falls, ID, operated.by the United States Department of Energy. Some analyses of.these samples were also performed in our own laboratory..No radionuclides associated with the operation-of-a nuclear power plant were detected in any of these samples. The.

laboratory analyses-were sufficiently sensitive to detect activity at concentrations as low as'one tenth the level permitted by'the EPA in community water _ supplies.

The April 7 samples were mistakenly discarded'before analyses for the naturally-occurring radionuclides in the radium-226 and radium-228 series were performed. Therefore, on January 24, 1989 Dr. Holtzman collected additional samples from the City of Braidwood Well No. 3-(Wells No. 1 and 2 were under

. repair and could not be sampled at that time) and from your farm for reanalysis. 'You will be informed of the results of these analyses by subsequent letter.

l-U V EEEA 8E8sygs

Mrs. Thelma L. Corbin MAR 171989 l

If you have any questions related to these results we will gladly discuss them with you.

4 Sincerely, A

M1 Carl J. Paperiello Deputy Regional Administrator

Enclosure:

Analyses Results cc w/o enclosure:

Resident Inspector, Braidwood I

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<t Table l' Radioactivity Levels in Well Waters.

Braidwood Area-

. Collected April 6,.1988-Determined by RESL-i i

Nuclide,

, Depth,.-

ft pCi/ Litre SD Sample Co-60,b b

g.

g

- 9.g a

Braidwood City Wells

1. 1-1000

<11

-60 40 -100.

300

.1 1

-2 2

1000

<11 16

'26, -1001 300

'0 1

-2 i 2

1. 2-2200

<11 0

30 -200 300 1

~1

-0 2

1. 3, c

Farm Wells.

1. 1 (household) 285

<11'

-40 30 -160 310' 1

.1

-3 1 2'

}

1. 2 (Drinking) 12

<11 0

30 -200 300

'l i 1

-2 2

1. 3 (Livestock) 12

<11 40 i 30 -170 310 1

1 0

2-Determined in the Region III laboratory, only.

a.

h

.In the Region III laboratory,where the counting times were muc longer than at RESL, the. minimum detectable activit b.

(<11),each.

_