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I1 i 0 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCaznpbell Analytical Inc Telephone 92sa9s-162o Fax 925 798 1622 <br /> j Lttp/lwww mccampbell coin E-mai] mam(�mccampbell cam <br /> QC SUMMARY REPORT FOR BATCH 2461 <br />' BatchlD 2461 Matnx W WorkOrder 0206243 <br />' EPA Method SW8021 W801 5Cm Extraction SW5030B Ext Date 6114102 Spiked Sample ID 0206240-020A <br /> Sample i Spiked MS* I MSD* MS-MSD*I LCS LCSD ILCS-LCSDjAcceptance Criteria(%) <br /> Compound <br />' pg/L pg/L %Rec ( %Rec % RPD %Rec %Rec I %RPD Low High <br /> TPH(gas) ND i 60 107 995 706 945 898 50 80 120 <br /> MTBE ND 10 113 105 743 : 94 103 88 80 120 <br /> 1 <br /> Benzene ND I 10 116 112 3 63 115 ]lb 0 40 80 120 <br /> i <br /> Toluene ND i 10 118 113 471 1 117 118 1 1 80 120 <br />' Ethylbenzene ND to 117 114 178 ! 118 118 0070 80 120 <br /> I <br /> Xylenes ND 30 117 113 290 120 120 0 80 120 <br /> i <br />' %SS 105 10 105 t 101 3 85 !08 106 21 i 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 /> lie <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD Relative Percent <br />' Deviation _ <br /> NIA=not enough sample to perform matrix spike or analyte concentration in sample exceeds spike amount <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 their RPDs near 0%if a)the sample is inhomogeneous AND contains significant concentrations of <br /> analyze relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />