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11 <br />- The analytical and the QAIQC results for ryanide indicate that it was <br />worthwhile to collect both filtered and unfiltered samples at the process point <br />locations. Problems with the analytical methods for total and WAD tyanide <br />were painted out in part because of discrepancies between results for filtered <br />and unfiltered samples. <br />- As recommended in the last third-party monitoring summary report, a more <br />consistent and detailed study of interferences should be conducted by an <br />analytical laboratory. Given the long turnaround times and tht; problems with <br />reanalyses and results in the QA/QC reports, it is difficult to recommend Core <br />Laboratories for this interference study. Another laboratory should be <br />identified for this study and possble for use as the main analytical laboratory. <br />RCG/Hagler, Bailly, Inc. <br />