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Re: MIT Prelim Unusual Occurrence
Ken. I would suggest that even though the exposure "may" turn out to
be less than allowed by regulations, the event was "unplanned" and as
such has most likely violated procedures within the facility. In that
event, the NRC still likes to use the terms "had the potential to
exceed regulatory limits" and the only reason the incident "might be"
less than regulatory limits, it was only by chance and without any
interaction/intervention by the licensed facility. In the nuclear
power industry we have seen many facilities cited for this very
problem, the potential to exceed while not, after a thorough
evaluation of the actual dose to be assigned, or shall I say, the
"engineered" dose reconstruction, which miraculously seems to be just
under the regulatory limits.
The fact that the incident was reported makes it an unusual event in
itself. After a review of the facility I surmise that they will at a
minimum be cited for violating their procedures, not having the proper
precautions in place to preclude this incident from happening, and
probably a citation of inadequate training.
In any event, the incident was unfortunate and should not have
happened in the first place. Remember, the regulatory limits don't
imply good health physics practices. Those below being good and those
above meaning bad. Even with a small unexpected uptake or a small
external exposure is an indicator that the process is in trouble and
needs some serious evaluation. Countermeasures are necessary with a
follow-up program to ensure that the system functions as necessary.
Sandy Perle
Supervisor Health Physics
Florida Power and Light Company
(407) 694-4219 office
(407) 694-3706 fax
sandy_perle@email.fpl.com
______________________________ Reply Separator _________________________________
Subject: MIT Prelim Unusual Occurrence
Author: radsafe@romulus.ehs.uiuc.edu at Internet-Mail
Date: 10/21/95 12:20 PM
The NRC prelim notification of unusual occurrence states that MIT
assessed the _maximum_ uptake to be 579 microcuries. Clearly,
independent verification is warranted; however, my point is that since
this is not an event which requires NRC notification why is the NRC
making it an unusual occurrence?
I agree that any "media" event involving licensed material should be
reported to the NRC, and that the NRC should take appropriate inspection
and enforcement actions if _violations_ of the regulations occurred.
But, categorizing an uptake of radioactive materials under the allowable
limit as a unusual occurrence (thereby reporting the occurrence to
Congress) seems unwarranted. At the time of the "Preliminary
Notification of Event or Unusual Occurrence" the NRC had no knowledge of
whether any regulations had been violated. I maintain that if this had
been an external exposure the event would not have been categorized as such.
What is (or should be) of concern to RSOs at Universities is whether this
is a copycat of the NIH incident.
Kent Lambert
LAMBERT@hal.hahnemann.edu
Standard disclaimer.