ML20134Q149

Supplementary NPDES Noncompliance Notification:On 850703, Determined That Large Input of Oil Overloaded Waste Water Treatment Oil Separator.Caused by Oil Absorbent Boom Trapping Oil.Boom Replaced & Repositioned

ML20134Q149
Person / Time
Site:	LaSalle
Issue date:	08/28/1985
From:	Diederich G COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8509090184
Download: ML20134Q149 (3)

Text

_ _ _ _ _ _ _ _ _

o 4 Commonwealth Edison LaSalle County Nuclear Station PRIORin m yscut 1R Rural Route #1, Box 220 F 16 Marseilles, Illinois 61341 Telephone 815/357-6761 $(-gyi

-c 1[

E_-

N[ atfit J Idimb August 28, 1985 Mr. James G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Co= mission 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-11 and NPF-18, Appendix B, Section 3.2, we are submitting to you a copy of the NPDES noncompliance for LaSalle County Nuclear Generating Statio' Permit No. ILOOh8151 supplementary cause of non-compliance and corrective actions for Noncompliance Report dated 03JUL85 A .D .

G. J. Diederich Station Manager LaSalle County Station GJD/FRL/SKF/kg Enclosure xc: NRC Resident Inspector INPO - Records Center US NRC Document Control Desk j 1

P W l#h l SEP f 'fu i 1995 1

e5090901s4e5ge ADOCK O 73 PDR PDR S

~ _ . _ _ _ ._

i l

, August 15, 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 SpringfieId, 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.

G. J. Diederich Station Manager GJD/PRL/SKD/sjc xc: Director of Water Quality, Environmental Affairs Manager, Nuclear Stations Division I l

DOCUMENT ID 0070h/0250A

• LASALLE COUNTY NUCLEAR GENERATING STATION 1 N.P.D.E.S. PERMIT NO: ILOO48151 1 NONCOMPLIANCE REPORT  !

DISCHARGE NUMBER AND DESCRIPTION: 001(c) Wastewater System Effluent  ;

l PARAMETER AND PERMIT LIMIT

Oil and Grease, 20 ppm daily maximum 011 and Grease, 15 ppm 30 day average 1

i

_ NONCOMPLIANCE, DATE, AND DURATION: l 82 ppm Oil and Grease, 17JUN85, unknown 34 ppm Oil and Grease, 24JUN85, unknown 33 ppm Oil and Grease, 30-day average. 03JUL85, month of June CAUSE OF NONCOMPLIANCE:

l A large input of oil overloaded the Wastewater Treatment Oil Separator.

Possible causes being investigated include a leaking oil separator oil i removal trough, which could reduce the oil separator's efficiency, and the overloading of the oil separator with an abnormally large quantity of oil.

Known contributing causes include an oil absorbent boom positioned in such a way that it trapped floating oil in the vicinity of the Wastewater Treatment effluent oil and grease sample point. This oil absorbent boom J had also not been replaced in over one year, and appeared to have little i or no remaining absorbency. The Station's supply of the two types of . 1 liquid polymer used at the facility as flocculant agents had exceeded the manufacturer's recommended shelf-life. Much of the polymer jelled, and appeared to have caused the failure of the polymer transfer pumps.

CORRECTIVE ACTION:

Station personnel are working with the oil separator vendor in determining if repairs to the oil removal trough will be necessary.

Station personnel are also attempting to identify the source of the oil.

The oil absorbent boom was replaced and positioned such that it does not interfere with the grab sample technique. An additional oil absorbent boom was installed upstream of the effluent compartment. The polymer skid transfer pumps have been repaired. New containers of polymer are due to arrive on-site soon. Oil was pumped out of the oil separator and the clarifiers. -Station personnel are evaluating the reorder quantity for both types of polymer so as to reduce the likelihood'of again exceeding the manufacturer's recommended shelf-life.

DATE RECOGNIZED AS A VIOLATION: _

30JUL85 DATE INVESTTGATED: 30JUL85 DOCUMENT ID 0070h/0250A

. . . . . , - -