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Laboratories, Inc. <br />Batch A distinct set of samples analyzed at a specific time <br />Error(+/-) Calculated sample specific uncertainty <br />Found Value of the QC Type of interest <br />Limit Upper limit for RPD, in %. <br />LCL Lower Control Limit, in % (except for LCSS, mg/Kg) <br />LLD Calculated sample specific Lower Limit of Detection <br />PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis <br />PQL Practical Quantitation Limit <br />QC True Value of the Control Sample or the amount added to the Spike <br />Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg) <br />RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor. <br />UCL Upper Control Limit, in % (except for LCSS, mg/Kg) <br />Sample Value of the Sample of interest <br />DUP Sample Duplicate <br />LCSS Laboratory Control Sample - Soil <br />LCSW Laboratory Control Sample - Water <br />MS/MSD Matrix Spike/Matrix Spike Duplicate <br />PBS Prep Blank - Soil <br />PBW Prep Blank - Water <br />QC Sample Type Explanations <br />Blanks Verifies that there is no or minimal contamination in the prep method procedure. <br />Control Samples Verifies the accuracy of the method, including the prep procedure. <br />Duplicates Verifies the precision of the instrument and/or method. <br />Matrix Spikes Determines sample matrix interferences, if any. <br />H Analysis exceeded method hold time. <br />R Poor spike recovery accepted because the other spike in the set fell within the given limits. <br />T High Replicate Error Ratio (RER) accepted because sample concentrations are less than 1 Ox the MDL. <br />U No nuclides detected above the Lower Limit of Detection (LLD) <br />V High blank data accepted because sample concentration is 10 times higher than blank concentration <br />X QC is out of control. See Case Narrative. <br />Z Poor spike recovery is accepted because sample concentration is four times greater than spike concentration. <br />Method <br />Prefix Reference <br />M EPA methodology, including those under SDWA, CWA, and RCRA <br />SM Standard Methods for the Examination of Water and Wastewater, 19th edition (1995) & 20th edition (1998). <br />D ASTM <br />RP DOE <br />ESM DOE/ESM <br />(1) Solid matrices are reported on a dry weight basis. <br />(2) Preparation method: "Method" indicates preparation defined in analytical method. <br />(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations. <br />(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification <br />qualifier associated with the result. <br />For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf <br />REPIN09.12.29.01 rc <br />Page 32 of 40