ML20071F424

/04L-0 on 780914:An Apparent Excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel Was Detected While Performing Aug 78 24-hour Complete Sample Analysis

ML20071F424
Person / Time
Site:	FitzPatrick
Issue date:	10/03/1978
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:
Shared Package
ML20071F421	List: ML20071F417 ML20071F424
References
LER-78-079-04L, LER-78-79-4L, NUDOCS 7810100026
Download: ML20071F424 (3)

Text

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, KrTACHMENT TO LER 78-079/04L-0 Page 1 of 2 An apparent excessive solute release from the Makeup Water Treatment Waste Neutrali:er Tanks to the Circulating Water Discharge Tunnel was detected while performing the August 1978 24-hour composite sample analysis. The analysis data was in excess of Technical Specification Appendix B, Paragraph 2.2.3 limits in that the analysis indicated the concentration of sodium and manganese was greater than 5% above Lake Ontario ambient (intake) concentration for the same 24-hour period.

This is a recurring event (See LER-77-034,77-062, 78-011,78-024, 78-02S,78-028, 78-053 and 78-067/04L-1) in which the composite sampling of the circulating water system discharge tunnel and the method of determining solute concentration and total dissolved solids is unsound. Remedial action to preclude additional recurrence has been initiated as a Technical Specification Amendment request.

Calculations based on

1) Actual neutrali:er tank contents prior to discharge.

2) Lake Ontario (intake) ambient concentrations. 1

( 3) Circulating Water System (dilution) flow rates.

4) Tank discharge flow rates show conclusively that the Technical Specification limit of 5% above ambient could not have been exceeded. These calculations are tabulated on the next page, f

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