ML19263A853

LER 78-092/04L-0 on 781130:excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel.Believe Method of Determining Solute Concentration Is Unsound

ML19263A853
Person / Time
Site:	FitzPatrick
Issue date:	12/27/1978
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19263A844	List: ML19263A853 ML19267A267
References
LER-78-092-04L, LER-78-92-4L, NUDOCS 7901030156
Download: ML19263A853 (3)

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' ATTACIIMENT TO LER-78-092/04L-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 November 197S 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, iron and sulfate was greater than 5% above Lake Ontario ambient (intake) concentration and total dissolved solid was greater than 1*, above Lake Ontario ambinet (intake).

This is a recurring event (See LER 77-034,77-062, 7S-011,78-024, 78-025,73-028, 78-053, 78-067/04L-1 and 78-OSS/04L-0) 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

3) Circulating Water System (dilution) flow rates

4) Tank discharge flow rates show conclusively that the Technical Specification limits of 5% and 1% above ambient could not have been exceeded. These calculations are tabulated on the next page.

ATTACilill!NT TO LER-78-092/O ll,-0 Page 2 of 2 PARAMETiiR INTAKli DISCilARGE NEUTRAI,1 ZER '6 INCREASE APPARENT *s ANAL,Y2ED Concentration Concent rat ion Tank Concentration IN DISC!!ARGE TUNNEL CIIANGE (+)

(By Analysis) (By Analysis) (By Analysis) (By Calc.) (By An.91y7 is)

Turbidity 3.50 3.50 7.0 0.021 0.000 Iron 1.0 1.5 67.5 0.722 +50.0 Calcium (ppm) 37.1 37.1 98.0 0.028 0.00 Sodium (ppm) 12.0 12.74 2000.0 1.790 + 6.52 Magnesium (ppm) 9.1 9.1 21.5 0.025 0.00 Potassium (ppm) 17.2 17.2 13.2 0.008 0.00 Flanganese (ppb) 2.4 1.0 14.72 0.066 -58.3 Chloride (ppm) 53.0 53.5 254.4 0.051 + 0.91 Sulfate (ppm) 27.5 30.0 5900.0 2.294 + 9.09 Phosphate (ppm) 1.0 1.0 1.0 0.011 0.00 Filterable So1 ids 3.0 2.0 15.0 0.054 -33.3 (ppm)

Total Dissolved Solids (ppm) 166.0 240.0 8068.0 0.520 +44.58 NOTE Dilution Ifater: 138,000 Gallons /Flinute X 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> X 60 Minutes /Ilour = 1.99 (E+8) Gallons Dilut ion Factor: Tank content 2.13 (E+4) Gallons / Dilution IVater 1.99 (E+8) Gallons = 1.07 (E-4) 4 9

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