ML20137A067

Supplemented NPDES Noncompliance Notification:On 850909,23 & 30,oil Admitted to Wastewater Treatment Process.Caused by Excessive Sludge in Oil Separator Inlet Bays.Media Filter a Changed Out

ML20137A067
Person / Time
Site:	LaSalle
Issue date:	11/01/1985
From:	Diederich G COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8511250407
Download: ML20137A067 (3)

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Commonwaalth Edison LaSalle County Nuclear Station h f4 g Rural Route #1, Box 220 V. e Marseilles, Illinois 61341 Telephone 815/357-6761 f[a

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November 1,1985 iD j Mr. Jamea G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Commisalon 799 Rocaevelt Road Glen Ellyn, Illinola 60137

Dear Mr. Keppler:

In accordance with InSalle County Station Unit 1 and Unit 2 Pacility Operating Licenae NPF-ll and NPF-18, Appendix B, Section 3.2, we are submitting to you a copy of the Supplemented NPDES noncompliance for InSalle County Nuclear Generating Station Permit No. IL0048151.

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["G.J.Diederich Station Manager InSalle County Station GJD/FRL/SKS/kg Enclosure xc: NRC Realdent Inapector INPO - Recorda Center US NRC Document Control Deak NOV 121985 3

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s Commonwealth Edison LcS;ita County Nucl:cr Station l

) RuralRout) #1, Box 220 v_ Marseilles. lllinois 61341 Telephone 815/357 6761 October 25, 1985 U. S. Environmental Protection Agency Region V. Enforcement Division ATTN: Chief. Compliance Unit 230 South Dearborn Street Chicago, IL 60604 Illinois Environmental Protection Agency Division of Water Pollution Control Compliance Management Unit

• 2200 Churchill Road Springfield, IL 62706

Subject:

NPDES Noncompliances for LaSalle County Nuclear Generating Station - Permit No. IL0048151 In accordance with Standard condition 12, we wish to submit the following supplement to a previously submitted notice of noncompliances which are listed on the attached table.

If there are any questions, please contact Steve Davis of my staff at (815) 357-6761, extension 487.

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' G,' J. Diederich ItationManager GJD/FRL/RHK/sje xc: Director of Water Quality. Environmental Affairs Manager. Nuclear Stations Division DOCUMENT ID 00"l0h/0250A L -

. o LASALLE COUNTY NUCLEAR GWfERATING STATION N.P.D.E.S. PERMIT ND: IL0048151 NON00fDLIANCE REPORT DISCNARGE WINSEE AND DESGIPTION: 001(c) Wastewater Treatment System Etfluent PARAfETER AND PERMIT LIMIT:

011 and Grease 20 ppa daily maximum 011 and Grease,15 ppm 30-day average m3NC0ffLIANCE. DATE. AND DURATION:

33 ppe oil and Grease, 9SEP85, daily maximum 18 ppe 011 and Grease, 23SEP85, daily maximum 29 ppe oil and Grease, 30SEP85. 30 day average CAUSE OF NONCQlFLIANCE:

The Wastewater Treatment (WWTF) Oil Separator Inlet bays contain excessive sludge. As a consequence, the oil separator was not capable of performing its intended function, and oil was admitted to the inrrF process. The polymer system was not adding the proper concentration of polymers.

CORRBCTIVE ACTION:

Wastewater Treatment System media filter "A" was changed out on 25SEP85.

The oil absorbant booms in the clearwell and effluent chamber have been replaced.

Replacement Oil Separator Tube Bundles are on order and will be installed within I week of arrival on-site. Action Item Record 373-200-85-18001 has been written to track this item.

The polymer skids are in operation. Action Item Record 373-200-85-18000 has been written to assure the polymer concentration is in accordance with the chemical vendor (Dearborn) recommendation. The vendor will perform additional jar tests once the oil separator tube bundles are replaced and the oil is skimmed off the Equalization Tank to the extent possible.

DATE RECOGNIZED AS A VIOLATION: .

030CT85-DA1E INVESTIGATED: 040CT85 1

DOCUMENT ID 0070h/0250A a