Columbia does not, there are a few situations where we will allow personnel who 
show no hand or foot contamination to receive a whole body count. If the WBC 
results identify only Radon or Radon progeny isotopes we will release them. 
These requirements are outlined in plant procedures.

Ray Thomson
Health Physics Craft Supervisor
Columbia Generating Station
[email protected]
Office, 509-377-8273
Pager, 509-780-0339



From: [email protected] [mailto:[email protected]] On Behalf Of 
Benjy P Bertossi
Sent: Wednesday, February 26, 2014 11:11 AM
To: [email protected]
Subject: Powernet: RCA exit followup


Is anyone releasing personnel from RCA, without being able to clear PCM with no 
alarm, if they have determined that PCM alarm is due to radon as determined by 
using gross alpha / beta hand frisking (e.g. CM11) and visually determining 
from count rate, that apparent decay time is short?

Benjy Bertossi
Fermi2 - RP Supervisor
734-586-4935
[email protected]<mailto:[email protected]>

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