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11 <br />- The analytical and the QA/QC 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 ryanide <br />were pointed out in part because of discrepancies between results for 5ltered <br />and un5ltered 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 ]aboratory. Given the Long turnaround times and theiproblems with <br />reanalyses and results in the QA/QC reports, it is difficult to redommend Core <br />Laboratories for this interference study. Another laboratory should be <br />identified for this study and possible for use as the main analytical laboratory. <br />RCG/Hagler, Badly, Iac <br />