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110 2nd Avenue South VD7 Pacheco,CA 94553 5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925 798 1622 <br /> Website www mCcampbell corn E-maii mamQmcc impbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0409206 <br /> EPA Method SW8260B Extraction SW5030B BatchiD 13142 Spiked Sample ID 0409205-0048 <br /> Analyte -[AcceptanceSample Spiked MS* MSD* MS-MSD` LCS LCSD LCS LCSD <br /> Criteria(%) <br /> pg/L pg/L % Roe % RBC %RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) 282 10 NR NR NR 100 98 234 70 130 <br /> 0/oSSI 98 0 10 103 lot 1 72 102 101 1 26 70 130 <br /> Ail target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=400*(MS-Sample)I(Amount Spiked) RPD=100*(MS- MSD)I((MS}MSD)12) <br /> *MS/MSD spike recoveries and I or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked samples matrix interferes with the spike recovery <br /> NIA=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 /> Laborato extracttan solvents such as meth leve chloride and acetone ma occasionall a ear in the method blank at low levels <br /> DHS Certification No 1644 QA/QC Officer <br />