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<br />hir. H. Bruce Humphries <br />November 7, 1996 <br />Page 3 <br />be noted that a 0.001 percent level of precision is not likely for either of these analytical or <br />sampling methods, the analytical results compaze to field data to within 0.001 percent for sample <br />G-2, 0.0046 percent fog sample D-15, and 0.005 percent for sample BB-4, 0.035 percent for <br />sample F-IS and 0.05.4 percent for sample DD-3. A copy of the analytical results is included as <br />Attachment 4. <br />Conclusion. In general, the data collected in this investigation indicate that the average percent <br />uranium ranges from approximately 0.02 and 0.03 at the waste rock dumps to 0.04 at the Sunday <br />low-grade pile. Only two field data points were in excess of 0.05 percent uranitun. The <br />laboratory results, while exhibiting some variation attributable to differences in measurement <br />methods discussed above, generally showed good agreement with the field measurements and <br />corroborated our experienc:e as to the accuracy of the survey method. <br />Based on our discussions with the Division, EFN trusts that you now have all the data <br />required to exempt these properties from DMO determination. As always, I can be reached at <br />(303) 899-5647. <br />Sincerely, <br />c~/1~ <br />Michelle R. Rebmann <br />Environmental Manager <br />MRR/pl <br />cc: Hazold R. Roberts <br />Richard A. Van Horn <br />Rich A. Munson <br />