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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798 1620 Fax 925-798 1622 <br /> http//www mccampbell coin E mail mama mccampbell coin <br /> • QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0210109 <br /> ' EPA Method SW8260B Extraction SW5030B BatchlD 4290 Spiked Sample ID 0210105-001A <br /> Sample Spiked MS- MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria (%) <br /> Compound ----- -- ----�,— <br /> Ng/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> tert-Amyl methyl ether(TAME) ND 10 87 7 961 914 907 101 103 70 130 <br /> Methyl-t butyl ether(MTBE) ND 10 94 103 886 993 112 _—1 1 8 70 130 <br /> Dusopropyl ether(DIPE) ND 10 902 98 833 939 103 964 70 130 <br /> Ethyl tert-butyl ether(ETBE) ND 10 91 9 993 776 943 105 11 1 70 130 <br /> 101 100 108 106 1 84 –101 999 1 49 70 130 <br /> All larget compounds m the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> 1 <br /> M5=Matrix Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Conlroi Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> N/A=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 /> ' analyte content <br /> %Recovery=100*(MS-Sample)/(Amount Spiked) RPD=100'(MS–MSD)/(MS+MSD)*2 <br /> *MS and 1 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 orb)if that specific sample matrix interferes with spike recovery <br />