ML20154P477

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NPDES Noncompliance Notification:On 880414,pH of Sample from Discharge Point 301 Exceeded Monthly Permit Limit.Caused by Release of Neutralizing Tank a W/O Continuous Ph Indication &/Or Trip Protection.Settling Basin Isolated & Neutralized
ML20154P477
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 05/25/1988
From: Danni Smith
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
References
NUDOCS 8806030350
Download: ML20154P477 (2)


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PHILADELPHIA ELECTRIC COMPANY

  • PE.ACH BCfrTOM ATOMIC POWER STATION R. D.1 Box 208 Delta, Pennsylvania 17314 naca normu-tus powra or netumcs (717) 45G7014 D. M. Smsth Vice Prcudent Deptartment 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:

ThepHofasamplefromdischargepoint301(SettlingBasin) exceeded the monthly permit limit.

Date Sample Taken:

4/14/88 Date Results Received:

4/14/88 Results of Analysis:

11.68 Permit Limitation:

6.0 to 9.0 CAUSE OF NONCOMPLIANCE:

The cause of the noncompliance was the release of the "A" neutralizing tank without continuous pH indication and/or trip protection. The pH meter for the neutralization tank was out of service and determined to be unrepairable. Grab samples were being taken at the time.

OURATION OF NONCOMPLIANCE:

The duration of the noncompliance was approximately 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />.

CORRECTIVE ACTION:

I The corrective action was to isolate the settling basin by shutting off the raw water sump pumps. The settling basin was then neutralized by adding alum to it.

It was neutralized at 2238 hours0.0259 days <br />0.622 hours <br />0.0037 weeks <br />8.51559e-4 months <br />, April 4 with a pH of 7.79.

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PREVENTION OF FURTHER OCCURRENCES:

A station modification to replace the neutralizing tank pH meter was in progress. This Mod was completed on April 29, 1988.

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Very truly yours.

JAV/aia cc:

Environmental Protection Agency Water Permits Branch Pennsylvania Section 3WH52 841 Chestnut Building Philadelphia,_ Pennsylvania 19107 Director Administrator ONRR Region !

US NRC Office of Inspection and Enforcement Washington, DC 20555 US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 E