ML20084L830

Telecopy Ro:On 740621,water Discovered Discharged from Unit Radwaste to Discharge Canal in Excess of Specified Activity. Caused by Improper Use of Multiplying Safety Factor Used in Calculating Discharge Units

ML20084L830
Person / Time
Site:	Dresden
Issue date:	06/21/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	Oleary J US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084L820	List: ML20084L818 ML20084L822 ML20084L830
References
5704, NUDOCS 8305230743
Download: ML20084L830 (1)

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(~.~~ d" AGENT U

?MS JAMES G KEPPLER, REG J@p), uDddr "E# dA

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D IPiECTOR ATE OF REGUL AHT0 AVt0NN 5.feIO N 5_].

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799 R0035VELT RO AD be ygGLE11ELLY.4 IL 60137

$O l'l3 JECT: DPR-19 Di1ESDE N NUCLEAit POWER ST ATION UNIT 2.

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by THIS VILL CONFIRM A CONVERSATION WITH F.

MAURA 0F Y0ud 0FFICE

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.h AT 13% H0tlRS THIS D ATE CONCEiiNING DISCHARGE OF WATER FRON UNII O

4 50 l

00 2/3 d AD W ASTE IN EXCESS OF 1.0X10-7 MICHO CJHIES PEil MILLILETER 7

ACTIVITY TO THE DISCHARGE CANAL. THE (A) FLOOH DRAIN SAMPLE TANK Cl ox ggg WAS PROCESSED 10 THE CAN AL DUMING THE PERIOD 3ETWEEN 0703 AND 2050

<y DURING THIS PERIOD APPH0XIMATELY 4,620 GALLhNSl HTJd3 01 6-20-74.

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OF WTTER WAS DISC)lARGED AT A' CALCULATED ACTIVITY A30VE

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197l:JIf," 2; pp. c,01 34CKGRO'J1D OF 1.019X10-7 MICR0 CURIES PER MILLILETER 10 TriE CAJAL.

THE I'JCIDENT WA3 A RESULT OF IMPROPER U3E OF A MULIIt' LYING

(%FETY F ACTOR) L'SE D If1 CALC'JLATING OF LIQtJID DISCHARGE HATES.

F'llTHER I1 FORMATION WILL 3EE REPORTED TO YO U 10 A TEN DAY 90TIFICATIO1 3 3 JTEPHE.1301, SUPE RINTE?J DE:1T 39E3DE1 13 CLEAR POWER STATI01

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00W10 3 JE ALTH EDISON Co T! R #1 MJRRIG ILLItJOI3 60450 y 9.; q f

JUN 2 5 1974 1

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