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110 2nd Avenue South gD7 Pacheco cA 94553-5560 <br /> McCampbell Analytical Inc telephone 92s-798-1620 Fax 925-798 1622 <br /> http llwww m�campbell cool E-mail rnain6pmecampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0312189 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 9623 Spiked Sample ID 0312190-0030 <br /> Sample Spiked MS* MSD` MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria (%) <br /> pg/L pg/L % Rec %Rec % RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) ND 10 954 948 0 717 116 116 0 70 130 <br /> %SSI 104 1 100 113 113 0 973 973 0 70 130 <br /> All target compounds to the Method Blank ofthis 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=100*(MS-Sample)I(Amount Spiked) RPD=100*(MS- MSD)/((MS+MSD)12) <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 matnx interferes with spike recovery <br /> N/A=not enough sample to perform matrix spike and matnx spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> analyte content , <br /> Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br />