Question on Radioactive Source Disposal

[hacare@MINDSPRING.COM]

A local high school finds themselves in possession of two 0.1 microcuries sources of PO-210  (half life 138 days).  The sources pre-date the current teacher who has been there over ten years.  Therefore the activity in the sources should be down around ten orders of magnitude.  The school wants to get rid of these things.  Is there a minimum activity level where a source can be disposed of as clean waste.  If not, does someone know of some way to legally dispose of these without it costing and arm and two legs??



Hal

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