ML20085C881

Telecopy Ao:On 741019,main Chimney Charcoal Sample Indicated Gaseous Discharge of I-131 Exceeded Tech Spec Limit.Charcoal Absorbers Replaced

ML20085C881
Person / Time
Site:	Quad Cities
Issue date:	10/21/1974
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085C880	List: ML20085C876 ML20085C881
References
NJK-74-337, NUDOCS 8307130185
Download: ML20085C881 (1)

Text

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,Wc .Tolophono303/654 2241 EJX-74-337

.Talecopy: _ Region III, _ Attention: Er, .C. Feierabend

' October;21, '.1974

.J. .'Kepplert, Regional: Director

'Directo rate iof . Regulatory .Op erations

.eRog'ica 'III i U.S. . Atomic Energy Cocnission

'799.ibosevelt lbad

.Olen ~Ellyn, Illinois .60137

Reference:

. Quad-Citia Auclear '.P.ower : Station

.1)ocket;ho. 5W2 DPR 29

. Appendix ;A, : Sections 1,0. A.;2, .'3 8.BJ2.a, 6.6JB.l.a 3 ear!Mr. hypler:

.The.jpurpose of .this . letter ~is to prov'ide you with : notification of an abnormal Occurrence as ' required tby Technical . Specification :6.6;B.~1.a

.within 224 : hours iof .the accurrenec.

.The snain . chimney :charecalisampic showed that gascous .dischargem . reached 333% of the I-131. limit ,of 6.uci/sec for .the.:poriod frca ,2230 bre :on

'.10/17/74 to 0245 : hrs on 10/19/74 Jodine samples .taken from the: Standby -

' Gam . Treatment tra' ins : revealed :a '70.6% charcoal .adsorber tefficiency ,on tho:A train; ara .8/3% .cn the.B train. 2On'10/19/74 the .B . train charcoal

-adsorbers were . replaced .and .a Freon-112 -efficiency test showed 99.997*f

efficiency.

' Die chimney discharge /had :bcen roduced to approrirmtely

26% .of the I-331' limit'.by 1020. hrs

and to 4a daily : average tof.20.6%

~1rf:2330 on 10/19/74. Thc.A train 4adsorbers were Freon tested .on '10/20 with 99.97% . efficiency results. )

.his occurrence .was idiscussed 'by telephone with Ur. C. Feierabend .of your office on October 19, 1974. _Further .infor. nation will~be .provided 1

.by: Abnormal: Occurrence.Ecport.A0 50-254/74-34 which, rill .be mubmitted '

within 10 sdays :of .the date tof this occurrence. l

' Vary trul,y yours, C&MOMLTH EDISON COATAE s GtAD-Cl?lES .EUCIZAR 'PO*AER STATION

, p o. ' r .

i whu ,

~

i i .J..~Ealivianaki Station .Suparintendent MJK/LFG/lk ,ec:

Tirectorato :or Liccasing

'd.S. .Abel 8307130185 741028 PDR ADOCK 05000254 8 PDR

_.- ,