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1� <br /> 110 2nd Avenue South #D7 Pacheco CA 94553-5560 W <br /> M McCampbell Analytical, Inc. Telephone 925 798-1620 Fax 925-798-1622 <br /> Website www mccampbell com Email mavi@u mccampbell com <br /> . QC SUMMARY REPORT FOR E200 9 <br /> Matrix W WorkOrder 0404203 <br /> EPA Method E200 9 Extraction E200 9 BatchlD 11096 Spiked Sample ID 040415$-001B <br /> Sample Spiked MS* MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> mg/L mg/L- %Rec % Rec %RPD %Rec ' % Rec %RPD -Low High <br /> Lead ND 0 010 997 946 529 117 108 806 80 120 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> • <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=100`(MS- MSD)!((MS+MSD)/2) <br /> MS and/or MSD spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte reiabve to the amount spiked or b)if that specific sample matnx interferes with spike recovery <br /> N/A=not applicable to this method <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anal to content T <br /> � DHS Certification No 1644 f �--f QA/QC Officer <br />