ML19263C360

LER 79-005/04L-0 on 790124: Apparent Excessive Solution Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel Noted.Calculations Show Tech Specs Not Exceeded

ML19263C360
Person / Time
Site:	FitzPatrick
Issue date:	02/14/1979
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
ML19263C358	List: ML19263C357 ML19263C360
References
LER-79-005-04L, LER-79-5-4L, NUDOCS 7902220034
Download: ML19263C360 (3)

Text

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ATTAC!! MENT 10 LER 79-005/04L-0 Page 1 of 1.

An apparent excessive solute release from the Makeup Water Treatment rlaste Neutralizer Tanks to the Circulating Water Discharge Tunnel was detected while performing the January, 1979 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 sulfate was greater than 5'. above Lake Ontario arsbient (intake) ccncentration.

This is a recurring event (See LER 77-034,77-062, 78-011,78-024, 78-025,78-028, 78-053,78-067, 78-088,78-092 and 78-108 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 neutralizer tank contents prior to discharge

2) Lake Ontario (intake) ambient concentration

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.

ATTACllMENT TO LER 79-005/04L-0 Page of 2 PARAMETER INTAKE DISCifARGE NELTTRALIZER 'o INCREASE APPARENT t ANALYZED Concentration Concentration Tank Concentration IN DISCIIARGE TilNNEL CllANGE (+)

(By Analysis) (Ey Analysis) (By Analysis) (By Calc.) (By Analysis)

Turbidity 5.0 4.8 5.2 0.004 -

4.0 Iron (ppb) 26.0 15.0 78.0 0.012 - 42.3 Calcium (ppm) 36.0 36.0 20.0 0.002 0.0 Sodium (ppm) 13.5 13.5 1160.0 0.346 0.0 Magnesium (ppm) 8.6 8.8 3.6 0.002 + 2.3 Potassium (ppm) 1.32 1.30 0.23 0.001 -

1.5 Manganese (ppb) 1.0 1.0 8.0 0.032 0.0 Chloride (ppm) 37.1 38.2 1272.0 0.138 + 3.0 Sulfate (ppm) 26.5 40.0 1800.0 0.273 + 50.9 Phosphate (ppm) 1.0 1.0 1.C 0.004 0.0 Filterable 4.0 3.7 1.0 0.001 -

8.5 Solids (ppm)

Total Dissolved 211.5 211.2 327.4 0.006 - 0.14 Solids (ppm)

NOTE: Dilution Water: 276,000 Gallons / Minute X 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> X 60 hiinutes/ flour = 3.97 (E+8) Gallons Dilution Factor: Tank content 1.6 (E+4) Gallons / Dilution water 3.97 (U+8) Gallons = 4.02576 (E-5) e a