ML20214S358

NPDES Noncompliance Notification:Monthly Average Total Phosphorus of Discharge Point 501 Exceeded Monthly Average Permit Limit.Caused by Sewage Treatment Plant Not Able to Reduce Phosphorus Below Permit Limit.Mods Underway

ML20214S358
Person / Time
Site:	Peach Bottom
Issue date:	05/28/1987
From:	Leitch G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8706090241
Download: ML20214S358 (2)

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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 (2:53 e41-4ooo ,

May 28, 1987 N

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Department of Environment ~al 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:

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DESCRIPTION OF NONCOMPLIANCE:

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.- The monthly. average total phosphorus.of discharge point 501 i (sewage treatment plant) exceeded the monthly average permit

-' limit. .

4 Date Sample Taken 4/2/87,, . 4/28/87 Date Results Received: "

4/14/87' 5/ 1 1/,37

• i Results.of Analysis: 3.0 mg/l 2.9 mg/1.

Monthly Average Analysis 2.95 mg/l Permit Limitation: 2.0 mg/l Monthly Average i CAUSE OF NONCOMPLIANCE: .

The cause of the noncompliance is the Sawage Treatment Plant is not able to reduce the phosphorus to below the permit limit.

The problem was compounded by the filters being out of service 1 allowing;slightly higher solids on the effluent, i

DURATION OF NONCOMPLIANCE:

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The duration of the noncompliance nas continued since the receipt of the new permit limits in October, 1985 except for August and November, 1986.

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. et CORRECTIVE ACTION:

The filters were returned to service on May 4, 1987.

PREVENTION OF FUTURE OCCURRENCES:

Modifications are underway to move the Ultrion chemical injection upstream of the sewage plant which should result in better chemical control and better phosphorus removal. Estimated completion is August, 1987.

Very truly yours,

.m .

..f\ nj m -s x-G. M. Leitch Manager Nuclear Generation Division CKB:ala cc: Environmental Protection Agency Water Permits Branch Pennsylvania Section 3WMS2 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