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r <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553.5560 <br /> McCaIripbell Analytical Inc. Telephone:925-798-1620 Fax:925-798-1622 <br /> hnp://www.mccampbeli.cam E-mail:main@mccampbell,com <br /> r <br /> QC SUMMARY REPORT FOR BATCH 2608 <br /> r <br /> Batch ID:2608 Matrix:W WorkOrder: 0206382 <br /> rEPA Method: SW8260B Extraction: SW5030B Ext.Date: 6/25102 Spiked Sample ID: 0206381-0020 <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> rpg/L pg/L % Rec. %Rec. %RPD %Rec. %Rec. %RPD I Low High <br /> tert-Amyl methyl ether(TAME) ND 10 113 113 0.485 126 98.2 25 70 130 <br /> r Methyl-t-butyl ether{MTBE) ND 10 104 104 0.372 114 109 5.3 70 130 <br /> Diisopropyl ether(DIPE) ND 10 105 104 1.25 112 92.6 19 70 130 <br /> Ethyl tert-butyl ether(ETBE) ND 10 106 105 0.413 123 103 18 70 130 <br /> r %SSI: 90.2 10 90.2 88.4 1.98 111 107 3.4 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method PL with the following exceptions: <br /> NONE <br /> r <br /> lie <br /> r <br /> r <br /> r <br /> r <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 /> r %Recovery=100'(MS-Sample)I(Amount Spiked);RPD=100'(MS—MSD)I(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 /> r <br /> r <br />