ML19249A600
| ML19249A600 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/08/1979 |
| From: | Allan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| NUDOCS 7908240036 | |
| Download: ML19249A600 (3) | |
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%a May 8, 1979 MEMORANDUM TOR:
James H. Sniezek, Director, Division of Fuel Facility and Materin1s Safety Inspection, IE:HQ FROM:
James M. Allen, Deputy Director, Region I S L'EJ ECT :
SCHEDULE A"D SCOPE OF THREE MILE ISIED RADIOLOGICAL II;VESTIGATION A schedule for the radiological investigation i, attached for your information.
The investigation into the radiological aspects of the incident is being pursued from four points of view:
emergency plan implementation, releases of radioactive material, in-plant radiation protection controls, and environmental monitering and assessment.
It appears, from the facts gathered thus far, that examination of the licensee's actions during the period 0400 on March 28 to 0001 on March 31, is appropriate for the scope of the investigation.
During this period, four of the major sections of the Emergency Plan, detection, classification, assessment, and protective ac t ions, were implemented and corrective actions were begun.
The effectiveness of the plan and its implementation can be measured by examining actions taken during these three days.
By 0001 on March 31, the releases of radioactive materials from the plant had stabilized and major spikes of airborne releases could, for the most part, be anticipated and in many instances controlled.
There was still a constant release of airborne radioactive materials and efforts continue at present to eliminate these releases.
The licensee had begun to reestablish basic contr.
over employee 1 March 31.
exposures to radiation and radioactive materials by
'.)evels and Initial surveys had been made to define the radiation concentrations of airborne radioactive materials in the plant and access control via normal radiation work permits began to be impicmented.
The plant at present is continuing to phase into the routine health physics program,
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__J James H. Sniczek The environmental rnonitoring and assessment program was well-established by 0001 on March 31.
Because of the above considerations, unless facts gathered later in the investigation warrant changes, the investigatien it.to the radio-logical aspects of the incident will examine the licensee's actions from 0400 on March 28 to 0001 on March 31.
Licensee actions subsc-quent to this period will be the subject of a separate Region I Report.
O-, M1, (fM-Jef.esM.Allen eputy Director Region I Attachnent:
Radiological Investigation Schedule RI n
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RADIOLOG1 CAL INVESTICATION SCHEDULE CC:!PLETION DATE Ml l.E STONE 4/12 Determine scope of investi gation.
Select team members.
4/17 Assemble team in Region I.
4/18 Entrance meeting with GPU management at TMI site.
4/21 Schedule interviews and request records.
5/21 Conduct interviews and on-site-investigation.
5/29 Review records and results of interviews.
6/7 Prep re Drai
,nterim Radiological Chronology.
6/12 Prepare Interim Radiologica! Chronology.
7/1 Prepare draft investigation report.
8/1 Prepare final investigation report.
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