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ACZ Laboratories, Inc. <br />977.1 nnwnhdl r)nva .4taamhnai .gnrinnc Cry Rn4R7 /Rnnl .4.94 <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 />RPD Relative Percent Difference, calculation used for Duplicate QC Types <br />UCL Upper Control Limit, in % (except for LCSS, mg /Kg) <br />Sample Value of the Sample of interest <br />QC Sample Types <br />DUP Sample Duplicate MS/MSD Matrix Spike /Matrix Spike Duplicate <br />LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil <br />LCSW Laboratory Control Sample - Water PBW Prep Blank - Water <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 />'Qualifiers (Quall) <br />H Analysis exceeded method hold time <br />M EPA methodology, including those under SDWA, CWA, and RCRA <br />SM Standard Methods for the Examination of Water and Wastewater <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.I)df <br />REP003 09 12 01 <br />Page 12 of 18 <br />