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I <br /> 110 2nd Avenue South,ltD7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-74&1520 Fax 925-79&1622 <br /> http//www mccampbel!com E-mail mam@mca ampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015C11n <br /> BatchiD 2384 Matrix W WorkOrder 0206147 <br /> IEPA Method SW8021 B18015Cm Extraction SW50308 Ext Date 6111102 Spiked Sample ID 0206147-0DIA <br /> Compound Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Crdena(%) <br />' <br /> pg/L pg/L %Rec %Rec %RPO %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 102 107 479 107 106 072 80 120 <br />' MTBE ND 10 899 922 259 931 101 85 80 120 <br /> Benzene ND 10 925 961 421 108 109 114 80 120 <br />' Toluene ND 10 957 100 4 70 109 110 12 80 120 <br /> Ethylbettzene ND 10 96 100 4 45 113 112 038 80 120 <br /> Xylenes ND 30 953 100 4 78 113 113 0 80 120 <br />' °/m5S 102 t0 102 101 0 941 102 103 066 80 120 <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 /> lie <br />' MS=Matnx 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*(NIS-Sample)I(Amount Spiked) RPD=100'(MS—MSD)/(MS*MSD)'2 <br /> `MS and/or MSD spike recoveries may not be near 1 00%or their RPDs near 0%rfa)the sample is inhomogeneous AND contains significant concentrations of <br /> analyze relative to the amount spiked,or b)if that specrIle sample matrix interferes with spike recovery <br /> 1 <br />