ML20154P427

NPDES Noncompliance Notification:On 880406,suspended Solids from Discharge Point 501 Exceeded Max Permit Limit.Caused by High Solids Carryover Through Sewage Plant Resulting from Wet Well Pumps Tripping on Thermals.Pumps Repaired/Cleaned

ML20154P427
Person / Time
Site:	Peach Bottom
Issue date:	05/25/1988
From:	Danni Smith PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8806030334
Download: ML20154P427 (2)

Text

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PHILADELPHIA ELECTRIC COMPANY '

PEACH BOTTOM ATOMIC POWER STATION k D.1 Box 208 Delta, Pennsyhula 17314

- re.cs wrm-rna rov sa or tuttttscs (717) 4$6 7014 D. M. Smith Vice PreWderit May 25, 1988 ,

i Department of Environmental Resources Bureau of Water Quality Management One Ararat Blvd.

Harrisburg, PA 17110

SUBJECT:

Noncompliance with NPUES Permit Peach Bottom Atomic Power Station Permit No. PA 0009733 Gentlemen:

DESCRIPTIONOFNONCOMPLIANC[: ,

Tht saspended solids of d sample from discharge point 501 (Sewage Treatment Plant) exceeded the instantaneous maximum permit limit.

Date Sample Taken 4/6/88 Date Results Received: 4/7/88 Results of Analysis: 69.2 mg/l Permit Limitation: 30 mg/l Avg.

j CAUSE OF__ NONCOMPLIANCE:

The cause of the noncompliance was high solids carryover through the sewage

! plant. This was caused by #1 and #2 wet well pumps tripping on thermals due to clogging with debris. When the pumps were cleared, the high flows caused high carryover, and hydraulically overloading the clarifiers.

00RA110N OF NONCOMPLIANCE:

The estimated duration of the noncompliance was twelve hours.

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CORRECTIVE ACTION:

The wet well pumps were repaired / cleaned on April 6, 1988.

Very truly yours, JAV:ala cc: Environmental Protection Agency Water Permits Branch Pennsylvania Section 3WM52 841 Chestnut Building Philadelphia, Pennsylvania 19107

-Director Office of Nuclear Reactor Regulation US Nuclear Regulatory Commission Washington, DC 20555 Administrator Region i Office of Inspection and Enforcement -

US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 I

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