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1 <br /> 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> [AHMcCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http!lwww mccampbell corn E-mail matn r@mcc,wnpbdl cum <br /> QC SUMMARY REPORT FOR 6010C <br /> I Matrix S WorkOrder 0210042 <br /> EPA Method 6010C Extraction SW3050B BatchlD 4234 Spiked Sample ID 0210042-003A <br /> Compound Sample Spiked MS' MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> mg/Kg mg/Kg ec %RPD %Rec %Rec % RPD Low ?sigh <br /> Lead ND 500 829 T87 478 LO6 851632 70 130 <br /> %SS 106 100 103 106 315 984 445 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 /> Ile <br /> I <br /> I <br /> I <br /> I <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPI3=Relative Percent <br /> Deviation <br /> . N/A=not enough sample to perform matrix spike or anayte concentration in sample exceeds spike amount <br /> I %Recovery=100'(MS-Sample)!(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%it a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that spedfic sample matrix interferes with s Ike recovery <br /> I <br />