ML19340D361

LER 80-090/04T-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: ML19340D357 ML19340D361
References
LER-80-090-04T, LER-80-90-4T, NUDOCS 8012300407
Download: ML19340D361 (1)

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

O,3, l Atomic Electric Laboratory which indicated that a reportable concentration of Co-60 J 10 t a l I (73.7 .6 pCi/kg) existed in a mussel sample taken from the Pilgrim Station dischargej io !si 1 canal outfall area on October 1, 1980. This concentration is in excess of 10 times [

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

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44 47 Ob 36 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  !

I Ii i1 l l P11erim Station. However. even if a person were to direceiv cens mo mmant s ne 4n 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

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,,,,,g exposed organ (adult, GE-LLI). Bo l

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' ISCO RY DISCOVERY DESCRIPTION STA S  % POWER OTHER STATUS N.A. j 11 15l W @ l1 l0 l0 l @ l l lD l@l Environmental Lab Notification ACTIVITY CO TENT AMOUNT OF ACTIVITY LOCATION OF RELEASE

AELEASED OF RELEASE l N.A. l l N.A. _l ji 7

l68l 3l z l @ 10l zl@l 11 44 45 80 PERSONNEL EXPOSURES NUMBE R TYPE DESCRIPTION ji l 7 l l 0 l 0 l 0 l@l~z l@l N.A. l

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' * * ,ERsCNNe'L mu' RIES NUYBER D ESCRIPTICN N.A. J Il la 8l 1010101@l 7 9 11 12 LOSS OF OH DAMACE TO FACILITY h TYPE DESCRIPTION v 11191IZl@l N.A. ]

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E @DE l CRIPTION 68 69 60 &

7 8 3 10 NAME OF PREPARER Mr. M. Tiomas McLoughlin PHONE: ,