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I110 2nd Avenue South HD7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br /> httpJ1www mctampbell com E-mail mmn@mccampbelE coin <br /> I <br /> . QC SUMMARY REPORT FOR SW8260B <br /> Matrix S WorkOrder 0209316 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 4063 Spiked Sample ID 0209316-006A <br /> Sample Spiked MS` MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> I PgX9 pgXg %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) ND 50 120 120 0 427 939 957 190 70 130 <br /> %SS 1 105 100 104 103 0 786 952 954 0 246 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 /> NONE <br /> MS=Matrix Spike,MSA=Matrix Spike Duplicate LOS=Laboratory Control 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 sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> nalyte content <br /> %Recovery=100•(MS-Sample)I(Amount Spiked) RPD=100•(MS—MSD)1(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 eontaxns significant concentrations of <br /> Ianalyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />