ML20127E401

NPDES Noncompliance Notification:On 850510,biological Oxygen Demand of Sample from Discharge Point 108 Exceeded Permit Limit.Cause Under Investigation.Operational Controls & Monitoring Increased

ML20127E401
Person / Time
Site:	Peach Bottom
Issue date:	05/21/1985
From:	Ullrich W, Vilrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	PENNSYLVANIA, COMMONWEALTH OF
Shared Package
ML20127E386	List: ML20127E381 ML20127E388 ML20127E401
References
MN-850521, NUDOCS 8506240539
Download: ML20127E401 (2)

Text

I m.,.

a PHILADELPHIA ELECTRIC COMPANY 2850607540 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 12151041 4000 May 21, 1985 Department of Environmental Resources Bureau of Water Quality Management One Ararat Blvd.

Harrisburg, PA 17110 Gentlemen:

SUBJECT:

Noncompliance with NPDES Permit Peach Bottom Atomic Power Station Permit No. PA 0009733 DESCRIPTION OF NONCOMPLIANCE:

The biological oxygen demand (' BOD) of a sample from discharge point 108 (Sewage Treatment Plant) exceeded the permit limit.

Date Sample Taken: 5-1-85 Date Results Received: 5-10-85 Results of Analysis 48 mg/l p Permit Limitation: 45 mg/l CAUSE OF NONCOMPLIANCE:

, The cause of this non-compliance is unknown at this l

time. The operating records were reviewed for the period prior l to and including May 1, 1985. All the indicating parameters l'

appeared to be within normal values. In addition grab samples of the equalization basin and of the unchlorinated effluent were taken May 1, 1985. The results were 245 mg/l BOD and 28 mg/l BOD respectively which indicates a 89 percent decrease in BOD by the sewage treatment plant.

l DURATION OF NONCOMPLIANCE:

l .

The duration of the noncompliance is unknown but it appears to be an intermittent problem.

8506240539 850619 PDR ADOCK 05000277 R pm l

b

. '. 2850607540 CORRECTIVE ACTION:

No corrective action was taken at this time. The Chemistry Section is investigating and conducting further tests to determine'the cause of the problem.

PREVENTION OF FUTURE OCCURRENCES:

i Operational controls and monitoring have been increased.

Inlet as well as effluent samples will be analyzed on a regular basis to determine system operating efficiency. By increasing surveillance of the system by Operations and Chemistry, problems such as this will be minimized in the future.

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 hiladelphia, Pennsylvania 19107 Director Office of Nuclear Reactor Regulation US Nuclear Regulatory Commisssion Washington, DC 20555 Administrator Region I Office of Inspection and Enforcement US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 1

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