ML20084U886

Telecopy Ao:On 741116,floor Drain Sample Tank a Discharged to River.Caused by Operator Inadvertently Opening Inlet Valve.Further Info to Be Provided in AO 50-254/74-38

ML20084U886
Person / Time
Site:	Quad Cities
Issue date:	11/18/1974
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084U866	List: ML20084U864 ML20084U886
References
NJK-74-389, NUDOCS 8306290350
Download: ML20084U886 (2)

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j. NJKTr74-389 I

y Tele copy::.- Region- III . .. Atten ti'on: : MM. C , -.Feierabend:

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N6venber- 18,. 1974-t i

l J ....K6 pplerg , Regional ' Direetor- 'i i Directorater of Regulatory-Operatibns:. '

i Region III.

{ UT..S'. Atomic: Energy- Commission:_

i 799: Roosevelt-Road. ,

j Glen;E11yrr, Illinsis: 60137' l l'

Reference:

Quad'Citiest Nuclear.: Power, Statibw,...,Utiit . l' . t

Dooket NO... 50-254s. DPR-  ! App endi x: A L..Se ction :.1. O'. A ;; 3 , ..,3.- 8 %.D; 3 'v ,6';6.'B .1.av Deara MF.... Keppler;.  !

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} The purpose. of this.. letter

• is to providt you: withi natirica-  :

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tion:.or. antAbhormal Occurrence ass requiradiby-Techni' cal-?

i S>ecification 6.6.B.1.a. withih:24t hones of' the.: ooourrenoe.. i I

l On. November- 16;,, .1974 at. 4: 00:. p .m. Unit:.1' andrUttit. 2: were' oyr-

eratihg- at. 778

Mder and. 26"/ MKe),. respect 1'vely ... The:. ALFloort t DraintSample: Tank- (PDSTI was discharging to. the' river--andCthe.-

l Floor. Drain. . Collector- Tank: was: being. prosessed. . The::. radwaste e -

operator .ihadvertant.ly .openedithe:-inle4 valve: toothe A*".PDST' 3

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( instead1 of' tor the-B tanka AC 4: 15.pim; the mistakes wam, notreeds i

j and; alldid eharge:. to . the..rivert waas stoppedii. . The: inlett valve:.

J to_ the. A tank; was shut and tha Shift.' Engineer-was nati'fiedi, .

l Samples.. were takent at..the floort drain: collectorv. filt'er' effluenti.

and: at. the A floor

• drain:t sample: tank;after-it. hadi beens.reciYouw-i t lated.. The ficor* drain:,. filter' erfluent. concentrati'om was; .

1.2 ' X:10 8 uci/ml and: the- actus1 AZFDST'concentratibn:.was.

ll! 1. 8'. X~ 10 s uci/ml. . A sample... takenxat the A' FDST the -day-be-l rore yielded a concentration.. of.' 2. 93' X 10.a " uni 7ml .. . The dit -

' charge- rate e to: the . river

• 00' 6, gpm. waa based; ow_1hi's: samspie.-

i Therefore, the. effluent front.the flose dreih.s filtert was: of" si gnifi'd ant.ly- lower- activity 3.nsuchi thata.the . A' FDST 'was: being.

i diluted: whiles being dischargedf to: the . river... Approxiinately- l

! li 90. ga11ons; of this. uncontrolled,,.yet monitored--effluent was -  !

l discharged: to .the. rivert overa this.15 minutet period 6 8306290350 741126 l i i PDR ADDCK 05000254 Y* cyd  !

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