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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> LAMcCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http/hvwwmccarnphel1com E-mail main®mccampbell corn <br /> • QC SUMMARY REPORT FOR SW8260B <br /> BatchlD 2483 Matrix W WorkOrder 0206274 <br />' EPA Method SW8260B Extraction SW5030B Ext Date 6/17102 Spiked Sample ID NIA <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br />' pg/L }tg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Dnsopropylether(DIPE) N/A 10 N/A N/A N/A 125 119 51 70 130 <br /> Ethyl tert-butyl ether(ETBE) N/A 10 N/A N/A N/A 111 995 11 70 130 <br /> Methvl-t-butyl ether(MTBE) N/A 10 N/A N/A N/A 966 858 12 70 130 <br /> tert-Amyl methyl ether(TAME) NIA 10 N/A N/A N/A 988 872 12 70 I30 <br />' %SS N/A 10 N/A N/A N/A 107 981 83 70 I30 <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 /> 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 the RPDs 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 /> Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br /> 1 <br />