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i !10 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 k'ax 925-798-1622 <br />' - http l/wwtiv mccampbell circ E-mail main a{�nccampbell com <br /> QC SUMMARY REPORT FOR E200.9 <br /> Matrix W WorkOrder 0208476 <br />' EPA Method E200 9 Extraction E200 7 BatchlD 3707 Spiked Sample ID N/A <br />' <br /> Compound Sample Spiked MS' MSD" MS-MSD` LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> mg/L mg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Lead NIA 0 010 N/A N/A N/A 991 102 293 70 130 <br />' All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> 1 <br /> 1 <br /> I <br /> MS=Matnx Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent <br /> Deviation <br /> N/A=not enough sample to perform matrix spike or analyte concentration in sample exceeds spike amount <br /> %Recovery=100*(MS-Sample)I(Amount Spiked) RPD=100*(MS—MSD)/(MS+MSD)*2 <br /> *MS and 1 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 relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />