ML20137X816

NPDES Noncompliance Notification:On 851011,30-day Average Total Suspended Solids Exceeded Due to Broken Backwash Nozzle on Media Filter B.Filter Repaired & Placed in Svc Even Though Station Short of Anthracite Coal

ML20137X816
Person / Time
Site:	LaSalle, 05003738
Issue date:	11/14/1985
From:	Diederich G COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8512100640
Download: ML20137X816 (3)

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Commonwealth Edison Jyg LaStil3 County Nucia r Station 9 Telephone 815/357-6761 Rur:I Rout:) #1, Box 220 Marseilles, Illinois 61341 FRIORITY rC'JTI!;G

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flL November 14, 1985 Mr. James G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Commission T99 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

In accordance with InSalle County Station Unit 1 and Unit 2 Facility Operating License NPF-ll and NPF-18, Appendix B, Section 3.2, we are submitting to you a copy of the NPDES noncompliance for LaSalle County Nuclear Generating Station Permit No. IL00h8151.

G. J. Diederich g Station Manager f LaSalle County Station GJD/LRA/RRK/kg Enclosure xc: NRC Resident Inspector INPO - Records Center US NRC Document Control Desk e

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November 1.-1985 U. S. Environmental Protection Agency Region V Enforcement Division 4 ATTN: Chief, Compliance Uni _t 230 South Dearborn Street Chicago, IL 60604 Illinois Environmental'iProtection Agency Division of Water' Pollution contre:

Compliance Management unit 2200 Churchill Road Springfield, IL 62106 ,

De3nr Sir:

Subject:

NPDES Noncompliances for LaSalle County Nuclear >

Generating Station - Permit No. ILOO48151 In accordance with Standard Condition 12, we wi h to submit the following '

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 4W1.

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/3 L%I G. J. Diederich Station Manager GJD/LRA/RKK/sjc xc: Director of Water Quality, Environmental Affairs Manager, Nuclear Stations Division l DOCUMENT ID 0070h/0250A ,

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. LASALLE COUNTY NUCLEAR C :ATING STATION

, N.P.D.E.S. PERMIT NO. ILOO48151 NONCOMPLIANCE REPORT DISCHARGE NUMBER AND DESCRIPTION: 001(c) Wastewater Treatment System Effluent PARAMETER AND PERMIT LIMIT: Total Suspended Solids, 15 ppm 30-day average NONCOMPLIANCE. DATE. AND DURATIOW:

20 ppe Total Suspended Solids, 310CT85, 30-day average.

CAUSE OF NONCOMPLIANCE:

The 30-day average limit was exceeded because of one discharge which contained 43 ppa total suspended solids. (A noncompliance report on this occurrence was submitted 210CT85).

On 110CT85, a backwash nozzle on "B" media filter was discovered to be broken and the filtering medium had drained into the clearwell, underdrains, and effluent chamber. The backwash nozzle was replaced and the clearwell, underdrains, and effluent chamber were cleaned on 110CT85. When replacing the filtering medium, the station was short of the necessary amount of anthracite coal. The filter was put into service until l'10CT85 when it was isolated until the proper amount of anthracite coal was received.

The anionic polymer skid was out of service from 120CT85 to 1*lOCT85 to repair a level probe.

The composite sampler was found to be overflowing at sample time due to a l power failure and compositor memory loss.

CORRECTIVE ACTION:

Anthracite coal was added to 'B' media filter to bring it to the correct level on 180CT85.

The anionic polymer skid was put back into service on 170CT85, although l

repairs were incomplete. Anionic polymer is currently manually mixed in the mixing tank.

The composite sampler has been reprogrammed to sample the correct volume.

DATE RECOGNIZED AS A VIOLATION: 310CT85 DATE INVESTIGATED: 310CT85

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