ML20236J144

NPDES Noncompliance Notification:On 870911 & 24,total Phosphorus of Samples for Discharge Point 501 Exceeded Monthly Average Permit Limit.Caused by Sewage Treatment Plant Inability to Reduce Phosphorus Below Permit Limit

ML20236J144
Person / Time
Site:	Peach Bottom
Issue date:	10/28/1987
From:	Leitch G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8711050159
Download: ML20236J144 (2)

Text

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1 PHILADELPHIA ELECTRIC COMPANY t 23O1 MARKET STREET P.O. BOX 8699  !

PHILADELPHIA, PA.19101

, (215) s41 5200 October 28, 1987 '

. . .' GR AH AM M LEITCH i

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

Harrisburg, PA 17110

SUBJECT:

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

I DESCRIPTION OF NONCOMPLIANCE:

The total phosphorus.of samples from discharge point 501 (Sewage Treatment Plant) exceeded the monthly average and maximum permit limit.

Date Sample Taken 9/11/87 9/24/87 Date Results Received: 9/19/87 10/5/87 Results.of Analysis: 3.9 mg/l 8.2 mg/l Monthly Average (actual) 6.1 mg/l Permit Limitation 2.0 mg/l monthly average 4.0 mg/l instantaneous maximum CAUSE OF NONCOMPLIANCE:

The cause of the noncompliance is an inability of the sewage treatment plant to continuously reduce the phosphorus level below the permit limits.

DURATION OP NONCOMPLIANCE:

The duration of the noncompliance has been intermittent since the receipt of the new permit limits in October, 1985.

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• CORRECTIVE ACTION: i One of;the sewage plant's pressure filters ~was found to be

. defective and removed from service on: September <23. The system p .is.being monitored and phosphorus grab samples'are being;taken on 1

.a daily basis.to determine:the correct amount of chemical feed.

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PREVENTION OP FUTURE OCCURRENCES:

The' damaged' pressure filter.is being repaired and will be returned to service by;the end-of October. An engineering consultant l(BCM).was scheduled in to evaluate operation of the sewage treatment plant. The BCM consultant visited on site on October 16, 1987. Per_his recommendation the second; aeration i tank was put in service-on' October 19, 1987. A sewage treatment plant. operator-training course.was' contracted from BCM for several Peach Bottom employees.- This course will commence November 5, 1987.

Very,trul[yours, 43 /,/ ,i

( (EN(

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l JAV:ald cci Environmental Protection Agency- 4 Water Permits Branch Pennsylvania Section 3WM52 841 Chestnut Building  !

Philadelphia, Pennsylvania 19107 s

Director Office of Nuclear Reactor Regulation US Nuclear Regulatory Commission Washington, DC 20555 q Administrator Region I .)

Office of Inspection and Enforcement 1 US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406

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