ML20126M719

NPDES Noncompliance Notification:On 850131,monthly Average Oil & Grease Concentration Measured 42 Mg/L,Exceeding Limit of 15 Mg/L.Caused by Bypass of New API Oil/Water Separator Due to Faulty Waste Oil Pump.New Pump Installed

ML20126M719
Person / Time
Site:	Palisades
Issue date:	02/06/1985
From:	Fobes R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Morley F MICHIGAN, STATE OF
Shared Package
ML20126M704	List: ML20126M701 ML20126M710 ML20126M714 ML20126M719 ML20126M728 ML20126M750 ML20126M769
References
PAL-85-01-AD106, NUDOCS 8506200444
Download: ML20126M719 (2)

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......,o,.....,m...,..~..,...~..s...,....~,.,..m....co...,77......o @ W)T C February 6, 1985 Mr Fred Morley District Supervisor Plainwell District Office Bldg 621 North 10th Street PO Box 355 Plainwell, MI 49080 FILE NO: P10.2.1 INCIDENT NO: PA.-85-01-AD106 This is in regard to NPDES Permit No MI 0001457 for the Conpany's Palisades Plant. In accordance with Part II, A4, the attached " NPDES Notification,"

Incident No PAL-85-01-AD106, 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 office.

N R L Fobes Senior Environmental Advisor BCC RBDek'it t , P-26-117B KFBieszke, P-24-329 BDJohnson, P-24-606 BkHarguglio, JSC-220A JFFirlit, Palisades JRSchepers, Palisades SFPierce, Palisades ATUdrys, M-1023 1

8506200444 850531 PDR ADOCK 05000255 R PDR OC0185-0344A-ENO3

File No P10.2.1

. Incident No: PAL-85-01-AD106 NPDES NOTIFICATION Apparent Difference From Daily Average / Maximum Limitation February 6, 1985 Plant: Palisades Permit No: HI 0001457 Outfall

Description:

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

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

1. Date of Incident: 1/31/85

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

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

3. Description of Incident:

The monthly average oil and grease concentration for January 1985 measured 42.0 mg/L.

4. Apparent Cause:

The new API oil / water separator was bypassed because of a malfunctioning waste oil pump. A larger than normal amount of oil had accumulated in the turbine sump and was passed through to tank T-41 while the separator was out of service. As a result, the daily maximum limitation was exceeded on 1/21 and 28, 1985, as previously reported on February 4, 1985. These exceedances of the daily max resulted in the monthly average also being exceeded.

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

NA

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

As previously reported on February 4, 1985, a temporary waste oil pump was installed and the oil / water separator returned to service. In addition, the accumulated oil was pumped out of the turbine sump and Tank T-41. Also, a system engineer has been assigned the responsibility of designing and conducting a verification program for the new separator to optimize its performance.

7. Additional Comments:

The final discharge to Lake Michigan showed no visible signs of oil.

8. Signed:

R L Fobes [

RP0185-0133A-EN03