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I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telepbone 925-798-1620 Fax 925-798-1622 <br /> httpJlwww niceanipbell corn F mail nmin@rnecansbell com <br />' QC SUMMARY REPORT FOR SW8260B <br />' Matrix W WorkOrder 0309310 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 8574 Spiked Sample ID 0309310-002B <br /> Sample Spiked MS' MSD' MS-MSD' LCS I LCSD LCS-LCSD Acceptance Criteria(%} <br />' pg/L pg/L % Rec %Rec %RPD %Rec %Rec %RPD Law High <br /> Methyl-t-butyl ether(MTBE) ND 10 81 9 837 218 873 102 15 6 70 130 <br />' %SS1 119 100 114 117 203 114 106 730 70 130 <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 /> 10 <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)I(Amount Spiked) RPD=100'(MS—MSD)/(MS+MSD)'2 <br /> MS and/or MSD spike recoveries may not be near 700%or the BPDs 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 /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <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 /> I analyte content <br /> 11-abora Dry extraction solvents such as methyiene chloride and acetone m2y occasionally a2eear in the method blank at low levels <br />