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1102nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http I/www mccampbell cam E mail mamQmccampbell cam <br /> 1 <br /> QC SUMMARY REPORT FOR SW8260B <br /> BatchlD 2672 Matrix W WorkOrder 0206431 <br /> 1 I=PA Method SW8260B Extraction SW50308 Ext Date 6/27/02 Spiked Sample ID 0206431-0058 <br /> Compound Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(°�) <br /> 1pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Dusopropyl ether(DIPE) ND 10 100 992 0 861 121 129 63 70 130 <br /> Ethyl tert-butyl ether(ETBE) ND 10 974 947 275 118 125 59 70 130 <br /> Methyl-t-butyl ether(MTBE) 693 10 110 108 1 11 115 125 86 70 130 <br /> tert-Amyl methyl ether(TAME) ND 10 97 95 2 13 l l8 125 5 8 70 130 <br /> 1 %SS 932 l0 932 914 l 91 103 105 20 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 /> 1 NONE <br /> 1 <br /> li <br /> 1 <br /> I <br /> I <br /> I <br /> 1 <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> 1 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'(NQS—MSD)I(MS+MSO)*2 <br /> *MS and/or MSD spike reoovenes may not be near 100%or the R 130 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 /> 1 Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br /> I <br />