ML20072S344

NPDES Noncompliance Notification:On 940706,salinity Meter Found Out of Svc During Surveillance of Effluent Monitoring for Intake Embayment.Caused by Water Leak.Current Monitoring Equipment Being Replaced

ML20072S344
Person / Time
Site:	Calvert Cliffs
Issue date:	07/12/1994
From:	Cruse C BALTIMORE GAS & ELECTRIC CO.
To:	Reahl M MARYLAND, STATE OF
Shared Package
ML20072S305	List: ML20072S303 ML20072S344
References
NUDOCS 9409140046
Download: ML20072S344 (1)

Text

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CnAnn.ts II. Cat:sE Baltimore Gas and Electric Company

. Plant General Manager Calven Clifs Nuclear Power Plant

• 1650 Calvert Clifs Parinvay

, Calven Cliffs Nuclear Power Plant Lusby. Maryland : 0657 tro 586-2200 Ext. .sto! E.ocal i ato 260-4101 Baltimore l July 12,1994 I

Michael Reahl State of MD - Depanment of the l Environment Water Management Administration ]

2400 Broening Highway j Baltimore, Maryland 21224

Dear Mr. Reahl:

RE: NPDES Permit Intake Embayment July 6,1994 -

Discharge Permit MD0002399, State Permit 92-DP-0187 On July 6.1994, during routine surveillance of efDuent monitoring for the intake embayment, the salinity meter was found out of service. The salinity monitoring requirements require 1 continuous monitoring with no specifications.  !

On July 5,1994, reusine maintenance was perforri[ed which included cleaning the conductivity cell. The salinity cell was returned to 'ervice s after maintenance. Therefore, it was deterrained that tne saiittity meter was out of service less than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Once per four hours grab sampling frequency was initiated as of July 6,1994 at 7:00 a.m. as required supplemental action and was discontinued when the salinity meter was returned to service on July 7,1994 at 8:20 a.m.

The cause of the malfunction was determined to be that the salinity meter developed a water leak in the monitoring probe which was subsequently repaired. To reduce further reoccurrences of intake embayment monitoring failures, BGE is replacing the current monitoring equipment and the surveillance frequency has been increased until the new equipment is declared in senice.

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If you have any questions regarding this information please contact Robert Kreger at 410-260-2426.

I c- el '

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CHC:RAK:dag ec: J. F. Stine Nuclear Regulatory Commission 940902 94091400 ADO 05000317 PDR PDR-S . a;