ML20112F728

NPDES Noncompliance Notification:Biological Oxygen Demand of 841204 Sample Taken from Discharge Point 108 Exceeded Instantaneous Max Permit Limit.Caused by Low Flow Condition Due to Malfunction of Filter Feedpumps.Pump Repaired

ML20112F728
Person / Time
Site:	Peach Bottom
Issue date:	01/02/1985
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8501160012
Download: ML20112F728 (2)

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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 ,

PHILADELPHI A. PA.19101 (215)8414000 '

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A January 2, 1985 h h

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Department of Environmental ncsource:

Bureau of ilator Quality llanagement 407 S. Cameron Street Harrisburg, PA 17101 h g

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SUBJECT:

Noncomplianco 'fith tiPDUS Permit Peach Bottom Atomic Power Station f

e Permit !!o. PA 0009733 i

DESCRIPTIO?! OF NO?iCOMPLT ANCE: -

f The Biological Oxygen Demand (BOD) of a sample taken  :

from discharge point 108 (Sowago Treatment Plant)  ;

excuuded the instantenous maximum permit limit. ,

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Date Sampic Taken: December 4, 1984 j Date Recults Reccind: December 18, 1984 r Recults of Analycla: 89 mg/l 4 Permit Limitation: 60 mg/l -

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CAUSE OF NONCOMPLT ANCE:

I A low flow condition due to a malfunction of the-filter feed pumps cauced carry over of solids in the clarifier l and a system upset. The pressure f11 tors woro-inoparablo and coul3 not be used.  :

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8501160012 850102 I PDR ADOCK 05000277 j S PDR //).  ;

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_2-1 i DURATION 07 NONCOMPLI ANCE:

Based on the turbidity data from the daily curveillanco i log, it appearc that the system upset existed for

approximately three days.

[ CORRECTIVE ACTION:

The filter food pumps woro backflushed on December 5, 1984, to roostablich catisfactory flow. One of the two food pumps was found to havo low flow following backfluching. It wsn repaired December 14, 1984, and returned to service.

PREVENTION OF FUTURE OCCURRENCES:

' Since the cause of noncompliance was an equipment malfunction, provention of future occurrence is difficult. Greater emphasis will be placed on examining conditions at the Sowage Treatment Plant during the lato j

! afternoon. Alco, maintenance on the pressure filters is being achadulod. Sewage plant personnel have been advised as to the importance of prompt notification of

supervision concerning plant problems.

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i Very truly yours, Original signed by W. T. ULLRICH .

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W. T. Ullrich Superintendant Nuclear Generation Division cc: EPA, 3:rMS2 Philadelphia, PA -

NRC,. Director ONRR

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Washington, DC NRC, Administrator, OIE King of Prussia, PA f i

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