ML20069N085

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Submits Preliminary Evaluation of Waste Evaporator Condensate Storage Tank releases.Sr-89 & 90 Values Determined.Two Releases Made Between 790328-31.Monthly Composite Sample of June Not Analyzed for Sr-89 & 90
ML20069N085
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 08/03/1979
From: Rusche B
GENERAL PUBLIC UTILITIES CORP.
To: Jay Collins
NRC - TMI-2 OPERATIONS/SUPPORT TASK FORCE
References
NUDOCS 8212020235
Download: ML20069N085 (1)


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Inter-@ffica M morandum D:,9 August 3, 1979

@SDoisct- Three Mile Island Liquid Releases Service To- J. T. Collins, NRC Location Three Mile Island A preliminary evaluation of the Three Mile Island Unit 1 Waste Evaporator Condensate Storage Tank (WECST) releases has determined Sr89/Sr90 values as you requested. These results were received via phone conversation with Dr. Dave Martin of Teledyne Isotopes. A followup letter confirming these values for strontium is expected in the near future. These samples are the monthly composite samples of the releases from the Unit 1 WECST's llA and llB.

I Period Covered Gallons Ci by Sample Concentration Released Released 4/1 to 4/30 Sr89 3.8 x 10-7 (cJml 101,845 1.47 x 10 ~0 Sr90 2.2 x 10~ geg/ml 8,48 x 10 -6

-6 5/1 to 5/31 Sr89 9.1 x 10 c/ml 98,994 3,41 x 10~

Sr90 2.2 x 10~ /[cfml 8.24 x 10-5 There were two releases made between March 28, 1979 and March 31, 1979, These were not included in this report because they were both made from the Unit 1 WECST's containing only Unit 1 water which was processed into t the WECST's prior to the accident.

l The monthly composite sample of June has not been analyzed for Sr89/Sr90 as yet. These results are expected within one to two weeks.

The composite sanple of July was just sent to Teledyne Isotopes, These results are expected in about six weeks.

If you need additional information, please contact us.

r gRADOCK12020235 790805 p 05000289 B,"C. Rusche PDR j al cc: J. J. Barton R. J. McGoey GPU Service Corporation is a subsidiary of General Public Utilities Corporation

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August 5, 1979 4

MEMORANDUM FOR: John Barton, Waste Management Activities, CPU FROM: John T. Collins, Deputy Director, TM1-2 Support

SUBJECT:

THREE MILE ISLAND LIQUID RELEASES 1 have reviewed your memo of August 3,1979 concerning the monthly com-posite samples of the releases from Unit 1, WECST's 11A and llB and I have the following comments. Your memo provided the results for April and May but not for June and July. You indicated that the results for  !

June would be available in abcut two weeks and the rescits for July in l about six weeks. In view of the potential significance of those-samples, j 9 we find this turnaround time unacceptable. Every effort should be made to shorten the time required for these analyses.

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[ John T. Collins, Deputy Director TMI-2 Support i cr: R. Vollmer PDR O e go o wt24o ,

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