ML20210E563

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NPDES Noncompliance Notification:On 860225 & 0304,pH Limit of Samples from Discharge Point 401 (Auxiliary Boiler Blowdown) Exceeded Permit Limit.Caused by High Blowdown Rate of Auxiliary Boilers.Blowdown Rates Will Be Reduced
ML20210E563
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 03/14/1986
From: Ullrich W
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8603270420
Download: ML20210E563 (2)


Text

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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 (215)841-4000 March 14, 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 samples from discharge point 401 (Auxiliary Boiler Blowdown) exceeded the permit limit.

Date Sample Taken:

2/25/86 3/4/86 Date Results Received:

2/25/86 3/4/86 Results of Analysis:

9.37 9.6 Permit Limitation:

6.0 to 9.0 pH Note:

Per telephone discussion with Mr. Ed Corriveau of the DER, the pH limitation for this internal monitoring point will be removed from the permit.

CAUSE OF NONCOMPLIANCE:

The cause of the noncompliance was high blowdown rate of the auxiliary hoilers.

DURATION OF NONCOMPLIANCE:

The duration of the noncompliance was six hours on February 25, 1986, and two and one half hours on March 4, 1986.

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. CORRECTIVE ACTION:

The dilution flow to the quench tank was checked, and-found to be at full. flow during blowdowns.

A sample taken on March 4, 1986, when the blowdown rate was approximately 2,000 lbs/hr. measured 9.6 pH.

The blowdown rate was reduced that' day to 1000 lbs/hr and another sample measured 7.4 pH.

PREVENTION OF FUTURE OCCURRENCES:

keeping blowdown rates less than or equal to 1000 lbs/plished by The prevention of future occurrences will be accom

~

hr.

Very truly yours,

[

W. T.

Ullrich Superintendent Nuclear Generation Division JAV/WTU:ala cc:

Environmental Protection Agency Water Permits Branch Pennsylvania Section 3WM52 841 Chestnut Building Philadelphia, Pennsylvania 19107 Director Office of Nuclear Roactor Regulation US Nuclear Regulatory Commiassion Washington, DC 20555 Administrator Region I office of Inspection and Enforcement US Nuclear Regulatory, Commission 631 Park Avenue King of Prussia, Pennsylvania 19406

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