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I110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-79&1620 Fax 925-798-1622 <br />' httpJlwww mccampbell corn E-mail main@mccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0207202 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 2972 Spiked Sample ID 0207212-001B <br /> Sample Spiked MS' MSD" MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%} <br /> Compound <br /> pg/L Ng/L %Rec %Rec % RPD %Rec %Rec % RPD I Low High <br /> Benzene ND 10 103 102 0 540 974 981 0 742 70 130 <br /> Toluene ND to 108 106 187 107 108 0 324 70 130 <br /> %SSL 102 100 995 101 1 44 80 783 207 70 130 <br /> %SS2 994 100 1 102 1 101 1 11 104 104 0 137 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 />� w <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD Relative Percent <br /> IDeviation <br /> NIA=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 /> analyte content <br /> %Recovery=100'(MS-Sample)1{Amount Spiked},RPD=100'(MS—MSA)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 />