ML20136C581

NPDES Noncompliance Notification:On 851112 & 30,total Iron Limit Exceeded.Caused by Heavy Rainfall

ML20136C581
Person / Time
Site:	LaSalle
Issue date:	12/20/1985
From:	Diederich G COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8601030365
Download: ML20136C581 (3)

Text

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O 'N Commonwe:lth Edison N.l. *

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LaSalle County Nuclear Station

1. 1, Box 220 PRIORITY RO'JilNG

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(j/ Marseilles, Illinois Telephone 61341 815/357-6761 First gi _

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PA0 FILh December 20, 1985 t L.

Mr. James G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

In accordance with InSalle County Station Unit 1 and Unit 2 Facility Operating License NPF-11 and NPF-18, Appendix B, Section 3.2, we are submitting to you a copy of the NPDES noncompliance for IaSalle County Nuclear Generating Station Permit No. IL00h8151.

G. J. Diederic h Station Manager

/ IaSc11e County Station GJD/LRA/RHK/kg Enclosure xc: NRC Resident Inspector

! INPO - Records Center US NRC Document Control Desk l

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.,' .- Comm:nw;cith Edison a LaSa!!e County Nuclear Station Rural Route #1, Box 220 v Marseilles, Illinois 61341 Telephone 815/357-6761 December 9, 1985 U. S. Environmental Protection Agency Region V, Enforcement Division ATTH: 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 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.

'. l l) ; e.d.) r. if G./J. Diederich "~

Station Manager GJD/LRA/RHK/jdp xc: Director of Water Quality Environmental Affairs l Manager, Nuclear Stations Division i

f DOCUMENT ID 0070h/0250A

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LASALLE COUNTY NUCLEAR CENERATING STATION N.P.D.E.S. PERMIT NO: IL0048151 NONOOMPLIANCE REPORT DISCHARGE NUMBER AND DESCRIPTION: 001, cooling Pond Blowdown i

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PARAMETER AND PERMIT LIMIT:

Total Iron, 4.0 ppe daily maximum Total Iron,~2.0 ppe 30-day average r NONCOMPLIANCE. DATE, AND DURATION:

4.1 ppe Total Iron, 12 Nov 85, unknown 3.3 ppe Total Iron, 30 Nov 85, 30-day average i

CAUSE OF NONCOMPLIANCE:

LaSalle County station had previously petitioned for a modification to its NPDES permit to delete cooling pond blowdown total iron limits. This request was based on correlation of rainfall to cooling pond blowdown total iron concentration. Rising cooling pond makeup and blowdown total ,

iron concentrations seem to parallel rainfall. The LaSalle County area experienced heavy rainfall for the majority of the month of November, thus total iron concentrations rose.

CORRECTIVE ACTION:

None taken.

DATE RECOGNIZED AS A VIOLATION: 05 DEC 85 DATE INVESTIGATED: 06 DEC 85

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