05000333/LER-1978-108-04, /04L-0 on 781217:apparent Excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel.Cause Not Stated

/04L-0 on 781217:apparent Excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel.Cause Not Stated

ML19289C654
Person / Time
Site:	FitzPatrick
Issue date:	01/17/1979
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
ML19289C652	List: 05000333/LER-1978-108, Forwards LER 78-108/04L-0 05000333/LER-1978-108-04, /04L-0 on 781217:apparent Excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel.Cause Not Stated
References
LER-78-108-04L, LER-78-108-4L, NUDOCS 7901220064
Download: ML19289C654 (3)

LER-1978-108, /04L-0 on 781217:apparent Excessive Solute Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel.Cause Not Stated

Event date:
Report date:
3331978108R04 - NRC Website

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ATTACllNENT TO LER 78-108/04L-0 Page 1

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An apparent excessive solute release from the Makeup Water Treatment Waste Neutralizer Tanks to the Circulating Water Discharge Tunnel was detected while performing the December 1978 24-hour composite sample analysis. The analysis data excess of Technical Specification Appendix B, Paragraph 2.2.3 limits in that the analysis indicated the concentration of iron and manganese was greater than 5% above Lake Ontario ambient (intake) concentration.

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 and 78-092/04L-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 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.

ATTACilFIENT TO LER 78-108/04L-0 Page 2

of 2

PARAh!ETER INTAKE DISCIIARGE NEUTRALIZER

% INCREASE APPARENT %

ANALYZED Concentration Concentration Tank Concentration IN DISCIIARGE TUNNEL CIIANGE (+)

(By Analysis)

(By Analysis)

(By Analysis)

(By Calc.)

(By Analysis)

Turbidity 4.8 4.2 4.7 0.0059

- 12.5 Iron (ppb) 3.5 4.0 83.0 0.1432

+ 14.28 Calcium (ppm) 41.0 41.0 61.0 0.009 0.0 Sodium (ppm) 16.4 16.8 2,900 1.0678

+ 2.439 Flagnesium (ppm) 7.7 7.8 15.5 0.0122

+ 1.2987 Potassium (ppm) 1.38 1.38 14.0 0.0613 0.0 Flanganese (ppb) 1.0 2.0 23.0 0.1389

+100.0 Chloride (ppm) 47.2 46.1 209.4 0.0268

- 2.33 Sulfate (ppm) 31.0 31.5 6,500 1.266

+ 1.6129 Filterable Solids (ppm) 1.0 1.33 8.33 0.050

+ 33.0 Total Dissolved Solids (ppm) 148.2 100 5910.4 0.2408

- 32.32 Phosphate (ppm) 1.0 1.0 1.0 0.006 0.0 NOTE:

Dilution Water: 276,000 Gallons /blinute X 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> X 60 blinutes/ilour = 3.974 (E+8) Gallons Dilution Factor: Tank content 2.4 (E+4) Gallons / Dilution Water 3.974 (E+8) Gallons = 6.038 (E-5) e