ML20214W897

NPDES Noncompliance Notification:On 860514,19 & 31,oil & Grease Concentration for Tank T-41,turbine Sump Oil Separator,Found Above Limit.Caused by Temporary Bypass & Failure of Separator.Separator Cleaned

ML20214W897
Person / Time
Site:	Palisades
Issue date:	06/09/1986
From:	Fobes R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Morley F MICHIGAN, STATE OF
Shared Package
ML20214W851	List: ML20214W848 ML20214W861 ML20214W877 ML20214W897 ML20214W921 ML20214W926 ML20214W935
References
NUDOCS 8612100449
Download: ML20214W897 (2)

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Geners offices. 212 west Micmesa Aveawe, Jackson, Mi 49201. (517) 7ssasso Wy g June 9, 1986 Mr Fred Morley District Supervisor Michigan Department of Natural Resources

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Plainwell District Office Building 621 North Kent Street PO Box 355 Plainwell, MI 49080 FILE NO: P10.2.1 UFI 950/72*40*05/3 Years INCIDENT NO: PAL-86-05-NC125 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-86-05-NC125 is submitted as a report of an apparent difference from the monthly average effluent limitations for this facility.

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

R L Fobes Senior Environmental Advisor SFPierce, Palisades ATUdrys, M-1023 8612100449 861201 gDR ADOCK 05000255 PDR OC0686-0004A-ENO3

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File No P10.2.1 Incident No: PAL-86-05-NC125 NPDES NOTIFICATION Apparent Difference From Monthly Average Limitation Plant: Palisades Permit No: MI 0001457 Outfall

Description:

Turbine Sump Oil Outfall Code No: 800218 Separator (001/00F)

Parameter: Oil and Grease Parameter Code No: 00556

1. Date of Incident: May 31, 1986

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

Monthly average limit of 15 mg/L oil and grease

3. Description of Incident:

The May monthly average oil and grease concentration for Tank T-41, turbine sump oil separator was 19.a ag/L.

4. Apparent Cause:

There were two incidents earlier in May when excessive oil and grease were found in T-41. On May 14 the oil and grease was 61.5 mg/L (Report dated May 21, 1986). On May 19 the oil and grease was 33.0 mg/L (Report dated May 28, 1986). As previously explained, the May 14 event resulted from a temporary bypass of the oil / water separator and the May 19 event resulted from an apparent failure of the separator.

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

N/A

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

As previously explained in the May 28, 1986 report, the oil / water separator M-18 was cleaned by A&B Industrial Co. on 5/24/86. Accumulated oil and grease were removed from the separator components to improve its efficiency.

As previously explained in the May 21, 1986 report the oil / water separator was returned to service and arrangements made to better coordinate bypassing of the system for maintenance or repairs.

7. Additional Comments:

A visual check of the mixing basin discharge during both events showed no visible oil in the discharge or lake.

8. Signed: p Ronald L Fobes RP0686-0005A-ENO3