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02/05/04 15:48 <br /> CH2M Hill Project: PG&E-Lathrop <br /> 155 Grand Ave.;Suite 1000 Project Number: 283984.0l.SA CLS Work Order#: CNB0097 <br /> Oakland,CA 94612 Project Manager: Bob Noyes COC#:43741 <br /> Notes and Definitions <br /> D-12 Results in the Gasoline Range are primarily due to overlap from a heavier fuel hydrocarbon product. <br /> GAS-1 Although sample contains compounds in the retention time range associated with gasoline,the chromatogram was not consistent <br /> with the expected chromatographic pattern or"fingerprint". However,the reported concentration is based on gasoline. <br /> QM-05 The spike recovery was outside acceptance limits for the MS and/or MSD due to matrix interference.The LCS and/or LCSD were <br /> within acceptance limits showing that the laboratory is in control and the data is acceptable. <br /> QM-4X The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater <br /> the spike concentration.The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. <br /> R-05 The sample was diluted due to the presence of high levels of non-target analytes resulting in elevated reporting limits. <br /> DET Analyte DETECTED <br /> ND Analyte NOT DETECTED at or above the reporting limit <br /> NR Not Reported <br /> dry Sample results reported on a dry weight basis <br /> RPD Relative Percent Difference <br />