ML20210P559

NPDES Noncompliance Notification:On 860806,pH of Sample from Discharge Point 301 (Waste Water Settling Basin) Exceeded Limits.Caused by Acid Inadvertently Entering Raw Pump Through Open Drain Valve.Liquid Added to Lower Ph Limit

ML20210P559
Person / Time
Site:	Peach Bottom
Issue date:	09/29/1986
From:	Leitch G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8610060797
Download: ML20210P559 (2)

Text

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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8'699 PHILADELPHIA. PA.19101 - .

(215)841-4000 September 29, 1986 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:

DESCRIPTION OF NONCOMPLIANCE:

The pH of a sample from discharge point 301 (Waste Water Settling Basin) exceeded the permit limit.

l Date Samples Taken 8/6/86 l Date Results Received: 8/6/86 l Results of Analysis: 5.0 l Permit Limitation: 6.0 to 9.0 1 CAUSE OF NONCOMPLIANCE:

When the acid day tank for the water plant demineralizers was drained in preparation for maintenance, the acid inadvertently entered the raw water pump through an open drain valve on a neutralizing tank. When the sump was being recirculated to neutralize *it, some of the acid went to the settling basin.

DURATION OF NONCOMPLIANCE:

The duration of noncompliance was approximately two hours.

8610060797 860729 PDR ADOCK ODOOO:T/7 S PDR < /$5 P

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CORRECTIVE ACTION: .

Liquid sodium hydroxide was added to the settling basin

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to bring the pH into the acceptable range.

PREVENTION OF FUTURE OCCURRENCES :

A letter was written to shift supervision suggesting neutralization of the raw water sunp should be accomplished by processing the water back through the neutralization tank. A copy of the letter was also forwarded to the training section.

,Very ruly yours, G. M Leitch Superintendent Nuclear Generation Division l

JAV/GML: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 Adninistrator Region 1 l Office of Inspection and Enforcement US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 L -