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)

Text

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

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,8 l'l3 JECT: DPR- 19 Di1ESDE N NUCLEAit POWER ST ATION UNIT 2. C

] by THIS VILL CONFIRM A CONVERSATION WITH F. MAURA 0F Y0ud 0FFICE

} .h AT 13% H0tlRS THIS D ATE CONCEiiNING DISCHARGE OF WATER FRON UNII O 4 50 00 2/3 d AD W ASTE IN EXCESS OF 1.0X10-7 MICHO CJHIES PEil MILLILETER l

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

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, l OF WTTER WAS DISC)lARGED AT A' CALCULATED ACTIVITY A30VE )v }./t!!

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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

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