ML20066A579

NPDES Noncompliance Notification:On 820924,tank Sampled to Verify Neutralization Prior to Discharge.Second & Third Samplings Revealed Ph Change.Error in Sampling or Analysis Suspected.Flush Time Reviewed

ML20066A579
Person / Time
Site:	LaSalle
Issue date:	09/24/1982
From:	COMMONWEALTH EDISON CO.
To:
References
NUDOCS 8211060128
Download: ML20066A579 (1)

Text

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LASALLE COUNTY NUCLEAR GENERATING STATION N.P.D.E.S. PERMIT NO:

ILOO48151 NONCOMPLIANCE REPORT DISCHARGE NUMBER AND DESCRIPTION:

Outfall 001c t.ow Volume Waste Radwaste Discharge Tanks s

PAkAMETER AND PERMIT LIMIT:

pH, 6.0-9 0 S.U.

l'ONCOMPLIANCE, DATE, AND DURATION:

4.6, 24SEP82, 8 Hours CAUSE OF NONCOMPLIANCE:

At 0550 Hrs. 23SepS2, the tank was sampled to verify neutralization

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prior to discharge. The result was 6.1 S.U. pH.

At the end of the discharge a second sample was pulled which showed the pH to be 4.6 S.U.

A third sainple,was pulled that verified the 4.6 pH.

The cause of the pH change is unknown all inputs to the tank were isolated from the time

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of the first sample on.

CORRECTIVE ACTION:

An error in the sampling or analysis is suspected. A review of the flush time used for flushing the sample line is being done to insure the time is adequate to obtain a representative sample.

F DATE RECOGNIZED AS A VIOLATION:

September 24, 1982 September 24, 1982

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DATE INVESTIGATED:

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l 8211060128 820924 PDR ADOCK 05000373 S

PDR