Powernet: EP question on releases

[Eric . Goldin]

Got an odd question on releases in emergency exercises/events.   It's pretty easy to declare that a release has started - you have effluent monitors and/or field teams.  But how do you determine when a release has stopped if it's unmonitored?  The field team may have confusing data due to ground deposition.  Anyone have a handy thumb-rule?   Like - if open window/closed window readings are the same at ground level and waist level?  Or open minus closed at ground level = zero, you claim no deposition?  If you're pressed for time to declare a release has been terminated, you might not be able to wait for marinellis to be taken and counted back in a lab.  Anyone have something good in their pocket already?

Thanks, Eric


Eric M. Goldin, CHP
Southern California Edison
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