05000293/LER-1980-090-04, /04T-0:on 801215,analysis Rept Received Indicating Excessive Mussel Sample.Caused by Facility Operation

/04T-0:on 801215,analysis Rept Received Indicating Excessive Mussel Sample.Caused by Facility Operation

ML19340D361
Person / Time
Site:	Pilgrim
Issue date:	12/19/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19340D358	List: 05000293/LER-1980-090, Forwards LER 80-090/04T-0 05000293/LER-1980-090-04, /04T-0:on 801215,analysis Rept Received Indicating Excessive Mussel Sample.Caused by Facility Operation
References
LER-80-090-04T, LER-80-90-4T, NUDOCS 8012300407
Download: ML19340D361 (1)

LER-1980-090, /04T-0:on 801215,analysis Rept Received Indicating Excessive Mussel Sample.Caused by Facility Operation

Event date:
Report date:
2931980090R04 - NRC Website

text

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60 61 DOCKET NUMBER 68 69 EVENT OATE 14 75 REPORT OATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h lOl2l l On Decer.ber 10, 1980, Boston Edison Co. received an analysis report from the Yankee l Atomic Electric Laboratory which indicated that a reportable concentration of Co-60 J

O,3, l 10 t a l I (73.7

.6 pCi/kg) existed in a mussel sample taken from the Pilgrim Station dischargej canal outfall area on October 1, 1980. This concentration is in excess of 10 times [

io !si 1 t O ls l l the lower limit of detection at the control station in Marshfield (4.5 pCi/kg).

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9 10 11 12 13 18 19 20 SEQUENTI AL OCCU R R E NCE REPORT REVISION LE 4< Ro EVENT YEAR REPORT NO.

CODE TYPE NO.

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40 41 42 43 44 47 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS l i 10 l l The presence of Co-60 in this discharce canal sarnie is due to coeration of the Ii i1 l l P11erim Station. However. even if a person were to direceiv cens mo mmant s ne 4n I

rate given in Regulatory Guide 1.109, the annual dose to that person would only be l

about 2.0X10~ crem to the total body (child) and 1.5x - mrem to the maximum l

,,,34l exposed organ (adult, GE-LLI).

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% POWER OTHER STATUS ISCO RY DISCOVERY DESCRIPTION N.A.

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7 8 3 10 Mr. M. Tiomas McLoughlin PHONE:

NAME OF PREPARER