ML20126M714

NPDES Noncompliance Notification:On 850228,monthly Average Oil & Grease Exceeded Limit of 15 Mg/L.Caused by Apparent Malfunction of New Oil/Water Separator.Separator Cleaned & Oil Skimming Weir Readjusted

ML20126M714
Person / Time
Site:	Palisades
Issue date:	03/19/1985
From:	Fobes R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Morely F MICHIGAN, STATE OF
Shared Package
ML20126M704	List: ML20126M701 ML20126M710 ML20126M714 ML20126M719 ML20126M728 ML20126M750 ML20126M769
References
PAL-85-02-AD108, PAL-85-2-AD108, NUDOCS 8506200443
Download: ML20126M714 (2)

Text

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..,.,. o,..... m ...o,c~..,...~..a.cs. ,. .c~,.,.. ..,..co...,,,......o u March 19, 1985 Mr Fred Morley District Supervisor Plainwell District Office Building 621 North 10th Street PO Box 355 Plainwell, MI 49080 FILE N0: P10.2.1 INCIDENT NO: PAL-85-02-AD108 This is in regard to NPDES Permit No MI 0001457 for the Company's Palisades Plant. In accordance with Part II, A4, the attached " NPDES Notification,"

Incident No PAL-85-02-AD108, is submitted as a report of an apparent differ-ence from the monthly average effluent limitations for this facility.

If you have any questions regarding the attached report, please contact this I office.

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R L Fobes Senior Environmental Advisor BCC RBDeWitt, P-26-117P KFBieszke, P-24-329 BDJohnson, P-24-606 BWMarguglio, JSC-220A JFFirlit, Palisades JRSchepers, Palisades SFPierce, Palisades ATUdrys, M-1023 8506200443 850531 1

PDR ADOCK 05000255 R PDR OC0385-0223B-TP13

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' c Filo No P10.2.1 Incident No: PAL-85-02-AD108 NPDES NOTIFICATION Apparent Difference From Daily Average / Maximum Limitation March 19, 1985 Plant: Palisades Permit No: MI 0001457 Outfall

Description:

Turbine Sump Oil Separator Outfall Code No: 800218 Discharge (00G)

Parameter Code No: 00556 i Parameter: Oil and Grease (Freon)

1. Date of Incident: 2/28/85

2. Identification of specific effluent limitation or monitoring requirement affected:

Oil and grease monthly average limitation of 15 mg/1.

3. Description of Incident:

The monthly average oil and grease for February 1985 neasured 27.3 eg/1.

4 Apparent Cause:

The monthly average limitation was exceeded as a result of an apparent malfunction of the new oil / water separator during the first half of the month, which caused the daily maximum limit to be exceeded on February 4, 10 and 11, 1985. As previously reported, there was a carry-over of oil from the separator into Tank T-41.

5. If not immediately corrected, the anticipated time the condition is expected to continue:

We believe that some of the basic problems have been resolved. The last two samples for the month of February were in compliance.

6. Corrective Action - The following corrective action was taken or will be taken to reduce, eliminate and prevent recurrence:

i As previously reported, performance of the new API oily waste treatment system continues to be evaluated and fine tuned to plant operations. As a result of the high readings, the interior of the separator was cleaned and accumulated oil removed from Tank T-41. The separator's oil skimming weir was also readjusted to manufacturer's specifications. System performance samples were collected and are being analyzed.

7. Additional Comments:

At no time was oil visible on the receiving waters of Lake Michigan.

8. Signed: gy R L Fobes RP0385-0223B-TP13