ML20237D508
| ML20237D508 | |
| Person / Time | |
|---|---|
| Issue date: | 08/18/1998 |
| From: | Congel F NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD) |
| To: | Elle D ENERGY, DEPT. OF |
| References | |
| NUDOCS 9808260244 | |
| Download: ML20237D508 (2) | |
Text
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August 18, 1998 Dr. Donald Elle, Director DISTRIBUTION:
4 Fedsral Radiological Monitoring File Center /NUDOCS AEOD R,F and Assessment Center IRD R/F ER R/F U.S. Dapartment of Energy Public WTravers i
P.O. Box 98518 TMartin SRubin N
Las Vegas, Nevada 89193 FKantor RLickus, Rlll
Dear Dr. Elle:
This is to request your assistance in addressing the measurement of radiciodines in the environment following an accidental release of radioactive matorial from a nuclear power plant.
Radioiodines released from a reactor accident may undergo a chemical transformation while airborne and after deoosition. The chemical transformation of radiolodines may affect the accuracy of field measurements, in his letter to the U.S. Nuclear Regulatory Comm!ssion dated July 7,1998, Mr. David W.
Minnaar, Chief of Radiological Protection Section in the State of Michigan, has expressed his concern regarding the potential underestimation of radiciodines using the current method of counting the activity contained in a silver-zeolite cartridge (copy enclosed). The States and i
licensees routinely use this method in emergency planning drills and exercises to demonstrate that they meet the FEMA Radiological Emergency Preparedness Exercise Manual (REP-14),
Objective 8, Criterion 4, which states that " field teams should demonstrate as a minimum the capability to sample and measure airborne radiciodine as low as 10E-7 uCi/cc."
Ultimately the objectives are to determine if the emergency worker turn-back guidance (FRMAC Assessment Manual, Method M.2.2) should be revised or if additional protective actions are needed for the public (Method M.3.0). Therefore, the environmental monitoring methods must allow the lodino airborne concentration to be measured promptly, in the presence of noble gases and other fission products, and be related to the gamma dose rate. We believe that consistency between the Federal and State responders in environmental monitoring procedures is important. I am, therefore, requesting that the Federal Radiological Monitoring and Assessment Center (FRMAC) Monitoring working group address this issue and provide your response to us by October 30,1998. We intend to provide our response to Mr. Minnaar using your assessment of the issue. We also intend to provide the results of your assessment to the Federal Radiological Preparedness Coordinating Committee (FRPCC) for distribution to other
- States, if you have any questions, please contact Mr. Aby Mohseni of my staff at (301) 415-6409.
Sincerely,
/s/ Frank J. Congel Frank J. Congel, Director
}d 9008260244 990818 Incident Response Division FDR ORO EUSDOE Office for Analysis and Evaluation PDR of Operational Data rO
Enclosure:
As stated
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cc w/ encl: See next page JD4p.5
) {e r1 A DISKiDOCUMENT NAME: A:\\MOHSENI\\ MICHIGAN.WPD
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To receive e copy. Indicate "C" = Copy w/o attachment / enclosure "A* = Co >y with attachment / enclosure; "N" = No copy. NO MARK = NO COPYi OFC IRD:AEOD A
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NAME AMohseni RTHogan FJCongel DATE 08/18/98*
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David W. Minnaar, Chief
' Radiological Protection Section Drinking Water and Radiological Protection Division Department of Environmental Quality 3423 N. Martin L. King Jr. Blvd.
P.O. Box 30630 Lansing, MI 48909 Russell Salter Federal Emergency. Management Agency 500 C Street, S.W.
Washington, D.C. 20472 1
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