ML18043A243

LER 78-032/01T-0:on 781019,during Monthly Sampling of SI Tanks,Boron Concentrations in Tanks B & D Were 1,703 & 1655 Ppm,Respectively.Caused by Dilution of SI Tank Contents from Water Left in Shutdown Cooling Lines After Shutdown

ML18043A243
Person / Time
Site:	Palisades
Issue date:	11/02/1978
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18043A241	List: ML18043A239 ML18043A243
References
LER-78-032-01T, LER-78-32-1T, NUDOCS 7811070218
Download: ML18043A243 (1)

Text

PALISADES .NRC FORM 366 (7-77) U.S. NUCLEAfl REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: ,_I _.___,___.

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• LICENSEE CODE 14 --. LICENSE-NUMB-EA . -* 25 26 -LICENSE TYPE 30 57 CAT 58 CON'T [ITIJ 1 a o I 5 I o Io 1 o 1 2 I 5 I 5 IG)I 1 I o 1 11 917 ! 8 K!)l 1 1 11 o I 2 I 7 ! 8 j G) 60 61 DOCKET NUMBER . 68 69 EVENT CATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES

@ * !During monthly sampling of SI tanks, the boron concentrations of SI tanks J @TI] I B and D were found to be 1703 ppm and 1655 ppm respectively.

The samples []TI] 1 were taken on 10-18-78 and 10-19-78.

Problem was corrected by draining (ill] I and refilling the SI tanks from the SIRW tank. See LER 77..,33. Event []I[) Lhad no effect on public health or safety. [ill] []]!] 1 as SYSTEM CAUSE CAUSE COMP. VALVE cooe . CODE suecooe COMPONENT CODE SUBCOOE ' SUBCOOE ISIFI@ W@ IAICICIUIMIUI@ 9 10 11 12 13 18 19' . 20 IIm 7 a SEQUENTIAL OCCURRENCE REPORT I,':;\ LEA/RO CVENT YEAR REPORT NO. COOE TYPE V.:J REPORT I 71 s 1 I I I 0 I 312 I I ...... , I 0 I l j L.!J I I NUMBER -21. 22 23 24 26 27 28 29 30 31 REVISIO_N l>.CTION FUTURE EFFECT SHUTOCWN (:;";;\ ATTACHMENT NPAD-4 PRIME COMP TAKEN ACTION ON PLANT METHOD HOURS SUBMITI'ED FOAM SUPPLIER . W@LQJ@ W@)

• I 010 Io I 01 l!J@ LI L!J@ 33 34 35 36 37 40 41 42 43 CAUSE DESCRIPTION AND CORREC'rJVE ACTIONS @ COMPONENT MANUFACTURER . IN 11151_0 I@ 44 ' 47 o:IIl l_!{eduction in boron coneentration was caused by dilution of SI tank contents ITIIJ Lfrom water left in the shutdown cooling.:lines after plant shutdown and 1_ ITTIJ I cooldowno This water is used as make-up to the SI tank after sampling., rr.pJ I Procedure revisions which will a,ssure flushing of the shutdown cooling ta:nk make-up will be imolemented

.. . . ) IJJI] I lines prior to their being used as SI 1 a 9 * -, FACILITY . IJQ\ METHOD OF r.;:;, so

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