ML20136B994

Concurs w/790530 Memo Re Criteria for Sample Retention

ML20136B994
Person / Time
Site:	Three Mile Island
Issue date:	06/08/1979
From:	Jay Collins Office of Nuclear Reactor Regulation
To:	Hetrick D METROPOLITAN EDISON CO.
References
NUDOCS 7909130466
Download: ML20136B994 (4)

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%ETROPOLITAN EDISON C O MP A N Y soo,,o,2,y o, coe.,.i poonc vi.ni... co,n=roi on Location Subject CRITERIA FOR SAMPLE RETENTION 1 To D. E. HETRICK Date May 30, 1979 Ref. Memo to Waste Management Group Activities Leaders from D. E. Hetrick, Dated 5-28-79, Same Subject.

A. Af ter discussion with the managers of the site GELi detectors on May 29, 1979, and af ter discussions with t he Radiation Protection and Chemistry supervisors, the following criteria are rec'ommended for sample retention:

1. Retain ,all samples for one week f rom time of analysis in order to insure adequate time for data review and evaluation, and re-counting ,

if necessary.

2. Because of the importance, retain all HPR samples for one month, and then discard if a Beta-Gamma survey indicates less than three times background on either side of the charcoal.

Weekly Gallon Reduction

' RML - 7 From To Composite each day's samples to two gallons per week 42 2 14 2

( ) East Dike Composite to two gallons per week Sewage Samples Dispose of after one week 56 0 5.

6. IWTS Composite to two gdlons per week 84 2

7. ISFW Composite to two gallons per week 84 2 )

8. WECST If necessary, if not already accomplished, composite to two gallons per week 7 2 1 1

9. Secondary Neutralizer Tank Discontinue 7 0

10. -IWFS Sluge discard af ter one week

• 28 0 t

11. Sumps Discard af ter one week 196 0

12. Unit 2 Secondary Tanks Discard af ter one week 14 0

13. Number 1 Cap Gun Composite to two gallons per week 84 2

14. Turbine Building Air Cartridges Discard if less than three times background Weekly Liquid Total 616 12 INTER-OFFICE MEMORANDUM

'4

Page 2 May 30, 1979

15. Auxiliary Building Air Cartridge Discard if less than three times backgmund

16. Dog House Air Cartridge Discard if less than three times background

17. HP Labs Air Cartridges Discard if less than three times background Environmental Air Cartridges Discard if less than three times background

19. Decon Paint Samples Discard af ter one week NRC Milk, Craphs, and Soil Samples Discard if provided by NRC h Other Miscellaneous camma Scan Samples Discard af ter one week B. It is most important that the early samples be composited so that we can perform the necessary strontium and gross Alpha analysis. This compositing will greatly reduce the volume.

C. It is recommended that the samples be stored according to the eleven required categories listed in CAP A above, and that all the charcoals be stored together except for the HPR charcoals which should be stored separately.

Please let me know if you have any questions about the above suggestions.

Ni fj y L' -

S. W. PORTER, JR.

Head, Effluent /EnvironmentalAssessment Branch cc: B. Rusche J. Herbein .

CJ. Collins, NRC)

R. DuBiel L. La nd ry T. Mulleary K. Frederick G. Smith, NRC W. Graber

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