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' 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://wuw.mccampbell,com E-mail.main@mccampbell,com <br /> QC SUMMARY REPORT FOR SW8260B <br /> BatchlD:2483 Matrix:W WorkOrder, 0206273 <br />' EPA Method: SW8260B Extraction: SW5030B Ext. Date: 6117102 Spiked Sample ID: <br /> Sample Spiked MS* MSD- MS-MSD` LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> pglL %Ree. %Rec. %RPD %Rec. %Rec, j %RPD i Low High <br /> Diisopropyl ether(DIPE) NIA 10 NIA NIA N/A 125 119 5.1 70 130 <br /> Ethyl tert-butyl ether(ETRE) N/A 10 N/A NIA N/A 111 99.5 11 70 130 <br /> Methyl-t-butyl ether(MTBE) N/A 10 NIA NIA N/A 96.6 85.8 12 70 130 <br /> tert-Amyl methyl ether(TAME) N/A 10 N/A NIA NIA 98.8 87.2 12 70 130 <br />' °�UsS 10 N/A N/A N/A 107 98.1 8.3 70 130 <br /> All target compounds in the Method Blank of this extraction batch were NO less than the method RL with the following exceptions: <br />' NONE <br /> 1 <br /> 1 <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 /> N/A=not enough sample to perform matrix spike,or analyte concentration in sample exceeds spike amount. <br /> ' %Recovery=101,*(MS-Sample)I(Amount Spiked);RPD=100`(MS—MSD)I(MS-MSD).2. <br /> *MS and I 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 />