05000277/LER-1982-030, Telecopy Message of LER 82-030/01P:on 820917,contaminated Water Released from Recombiner Bldg Into Storm Drain Sys. Caused by Spurious Actuation of Fire Protection Sprinkler Sys in B Filter Train of Exhaust Ventilation Sys

Telecopy Message of LER 82-030/01P:on 820917,contaminated Water Released from Recombiner Bldg Into Storm Drain Sys. Caused by Spurious Actuation of Fire Protection Sprinkler Sys in B Filter Train of Exhaust Ventilation Sys

ML20071M340
Person / Time
Site:	Peach Bottom
Issue date:	09/21/1982
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-82-030-01P, LER-82-30-1P, NUDOCS 8209270081
Download: ML20071M340 (2)

LER-2082-030, Telecopy Message of LER 82-030/01P:on 820917,contaminated Water Released from Recombiner Bldg Into Storm Drain Sys. Caused by Spurious Actuation of Fire Protection Sprinkler Sys in B Filter Train of Exhaust Ventilation Sys

Event date:
Report date:
2772082030R00 - NRC Website

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September 21, 1982: '.

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SUBJECT:

REPORTABLE OCCURRENCE - PROMPT NOTIFICATION .

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Confirming s'. m. moberts" conversati'on with'R[. Blough, negidn h, 5,'A . sit'c.,{1[,",'$'

s United is being states subesitted.one soclear dhy Regulathry l. .'at.e. thn-f..ssion ..

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On 9/17/82, a 'summ11 quantity of slightly contaminated water was , ,,Qi] {,j,; 7.. .;

releasedfroua'theRecodinerBuildingintotheStormDrainSystem.j.,

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An apparent spurious actuation ,of the fire brotection sprinkler.systeen,Qgi,y,wc.go.,..

i in the 'B' filter train of the Recombiner' Building aahaust ventilatioin.d.y 9' ' ',.Tj9 p. N cystem resulted in uncon h =1nated, fire water flowing to the floor,',,,."viW v'rp.,,y.1,7' drain sump and caused tho'suaqp to overflow.'

is cont ==hmted and, therefore, the water that over, flowed.was.also. h. ,,

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contaminated.f. That cont == Mated vatar reached the ground outside'.,st.,g.g . G' , . pN >r p.T.v:y.'V- .. y. {

the building under two exterior doors. i. portion of this. water.,. a .":.e. " p ..

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reached a storm drain which discharges to the river. . -3 Mw W..

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Analysis of Occurrence ,

It is estimated that 200 gallons of water with a total activity of 13 adcrocuries was released during a period of slightly less than li hours. sampling was begun at the point where the liquid entered the storm drain and at a n=4r of other points in the storm drain .

piping prior to discharge to the river. The samples taken cicsest to the river and at the river did not show any detectable activity. ..

One sample near the drain where the water entered showed slight .

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nctivity. Downstream of that location there, is a constant input to . .<,..~'

the Storm Drain System which provided sufficient dilution so that the samples taken closer to the river showed no detectable activity.

.,g-corrective Action:

When the leakage under the door was' detected, inumadiate actions were taken to block the door to stop the leakage. A sampling program was

begun to determine the activity of'the water 'that entered the storm , , " '

drains, and to detect any activity released to the river. A section ,

of storm , drain piping was f16shed aria approvinnately 100 gallons of . , . . ,,'

conFa=Insted 11guld was removed fro.m the. storm Drain System.

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