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CASE NARRATIVE <br /> STL SACRAMENTO PROJECT NUMBER G3H040225 <br /> General Comments <br /> The samples were received at temperatures of 18, 20 and 21'C <br /> Semi-Volatile Organics—Method 8270C <br /> The LCS pair has above limit recoveries of pentachlorophenol(100%a, 104%). The <br /> high recoveries have no impact on the data; all samples were non-detect for target <br /> -- analytes. <br /> Metals-Various Methods <br /> All samples were analyzed at a dilution due to interference from relatively high mineral <br /> concentrations. <br /> The sulfide analyses were performed outside of hold time. The analyses were delayed <br /> due to the calibration standard being on back order from the supplier. <br /> ' i <br /> There were no other anomalies associated with this project. <br /> ' i <br />—1040225 STL Sacramento 916-373.5600 1 of 90 <br />