ML20055A595
| ML20055A595 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 07/01/1982 |
| From: | Holyoak R COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| RO-1-82-110, NUDOCS 8207190227 | |
| Download: ML20055A595 (4) | |
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Commonwrith Edison
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Rural Route #1, Box 220 A
PA,5,J QL ST T Marseilles, Illinois 61341
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July 1, 1982 James G. Keppler Regional Administrator Director of Regulatory Operations - Region lli U. S.' Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Dear Sir:
l In accordance with LaSalle County Station Unit 1 Facility Operating License NPF-11, Appendix B, Section 3.2, we are submitting to you a copy of the NPDES noncompliances for LaSalle County Nuclear Generating Station Permit No. ILOO48151.
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Superinte n
ounty tion RHH/GW/djp Enclosure cc: DVR Report 1-1-82-110 l
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DVR NUMBER:
1-1-82-110 ll.
LASALLE COUNTY STATION:
Unit 1 Ill. EVENT DESCRIPTION The Regenerative Wastes Solution Discharge Tank (OWM03T) was discharged on 5/26/82 and 6/5/82.
Both of these discharges exceeded the N.P.D.E.S.
Permi t ILOO48151 maximum discharge limit for low volume wastes (Outfall 001c) of 1.0 mg/l total iron. Analyses of composite samples for these two discharges yielded a total Iron concentration of 1.1 mg/l and 2.2 mg/1, respectively.
These noncompliances are reportable under Tech Specs Appendix B, Section 3.2.
IV.
PROBABLE CONSEQUENCES OF THE OCCURRENCE The health and safety of the general public was not affected by these occurrences.
Excursions of the total iron limit is a continuing problem for this outfall, until FCR # LOO 72 modifications are completed.
V.
CAUSE On 5/25/82 dirt and debris from maintenance work that had been performed in the area was hosed into floor drains. These drains are routed to the Regen. Vastes Soln. Disch. Tank.
Since the dirt and debris contained rust, the composite sample of the tank exceeded the Permit limit.
The composite sample analyzed on 6/5/82 excursion was due to the temporary injection system.for hydrogen peroxide being ai r-bound.
Thus, the hydrogen peroxidt_(H 0 ) solution was not injected into the raw well water. Without 22 the injection of H O soluble iron in the raw well water is not oxidized to aninsolubleforman$,removedbyfiltration: This soluble Iron was sub-2 sequently removed by ion exchange and discharged to this outfall.
VI.
CORRECTIVE ACTION The operators have been instructed to discontinue washing excessive dirt and debris down floor drains, especially ones routed to N.P.D.E.S. outfalls.
These floor drains have also been appropriately marked for identification.
The air-bound temporary injection system was returned to routine operation, and operators have been instructed to monitor the operation of the system better.
Also, a permanent H O injection system is to be installed through the completion of FCR LOO 72 anbv1-82-301, assigned to Project Engineering.
2 "wd@d Prepared by:
Chuck Nash
P Comm:nwritti Edison
.c LaSalla County Nuclear Station FJ( - -
Rural Route $1, Box 220 V
Mirs*illts, Illinois 61341 Telephone 815/357-6761 June 22, 1982,
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U. S. Environmental Protection Agency Region +V., Enforcement. Divi sion~.id.V.>.~ ; : :Wki :. F. -
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230 South Dearborn Street Chicago, Illinois 60604 lilinois Environmental Protection Agency Division of Water Pollution Control Compliance Management Unit 2200 Churchill Road Springfield, Illinois 62706
SUBJECT:
HPDES Noncompliances for LaSalle County Nuclear Generating Station Permit No. ILOO48151
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if 'there 'are any questions, please contact'Mr. Charles L. Nash cf my staff, at (815) 357-6761, extension 235
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LASALLE COUNTY NUCLEAR GENERATING STATION N.P.D.E.S. PERMIT.RO:
ILOO48151 NONCOMPLIANCE REPORT
. %% c 001c-!LowNo'1umeWaste DISCHARGE NUMBER AND DESCRIPTION:
Regen. Vastes Soln. Disch. Tk.
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PARAMETER AND PERMIT LIMIT:.-Tota 1;-Iron 2 T.0[mg/I f.'
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. NONCOMPLIANCE, DATE, AND DURATION:'J-'
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1.1 mg/1, 26MAY82, 2i hours 2.2 mg/1, 5 JUNE 82,.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />
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"h-i CAUSE OF NONCOMPLIANCE:
M The excessive total tron found on hay 26, 1982, was due to dirt and '
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' A permanent hydrogen peroxide: Injection system is -to be installed as -
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This should prevent mechanical failures related to the r
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13JUN82 DATE RECOGNIZED _AS _A VIOLATION:
19JUN82 DATE INVESTIGATED:
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