RE: Uranium mill tailings

[Bill_Goldsmith@radian.com]

Barbara:  My recollection from about 20 years ago is somewhere on the order
of 600 pCi/g for Ra-226 and 200 pCi/g for Ra-228.  These numbers vary
greatly from site to site depending on the assay of ore and the processing
used.  The K-65 residues, however, are a totally different story.
Bill Goldsmith
Bill_goldsmith@radian.com <mailto:Bill_goldsmith@radian.com> 


		-----Original Message-----
		From:	BLHamrick@aol.com [mailto:BLHamrick@aol.com]
		Sent:	May 05, 1999 16:47
		To:	Multiple recipients of list
		Subject:	Uranium mill tailings

		Does anyone have some ballpark numbers on the average
concentration of 
		radium-226 and radium-228 in typical uranium mill tailings?
(In pCi/g)?

		Thanks.

		Barbara Hamrick
		BLHamrick@aol.com
	
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