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ORGANIC DATA QUALIFIERS <br /> U Indicates the compound was analyzed for, but not detected. The number <br /> adjacent to the "U" qualifier indicates the reporting limit for that <br /> compound. The reporting limit can vary from sample to sample depending on <br /> dilution factors or percent moisture adjustment when indicated. <br /> S Indicates an estimated value. It is used when the data indicates the <br /> presence of a compound below the stated reporting limit. <br /> C This flag applies to GC analytes only. The "C" flag indicates the <br /> presence of this compound has been confirmed by GC/MS analysis. <br /> S <br /> This flagis used when the analyte is found in the associated blank, as <br /> well as the sample. This notation indicates possible blank contamination <br /> and suggests the data user evaluate these compounds and their amounts <br /> carefully. <br /> E This qualifier indicates that the value reported exceeds the linear <br /> calibration range for that compound. Therefore, the sample should be <br /> reanalyzed at an appropriate dilution. The "E" qualified amount is an <br /> estimated concentration, and the results of the dilution will be reported <br /> on a separate Form I. <br /> D This qualifier indicates compounds which have been identified during a <br /> diluted reanalysis. "D" qualifiers are used for samples that have been <br /> analyzed initially at a lesser dilution than required for accurate <br /> quantification. <br /> . I <br /> CH2M HILL Quality Analytical Laboratory 5090 Caterpillar Road,Redding, 916.244.5227 <br /> California 96003-1412 FAX 916.244.4109 <br />