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110 2nd Avenue South #D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798 1620 Fax 925 798-1622 <br /> http,//www mccanipbell coin H mail rnam campbell coin <br /> • QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0308207 <br />' EPA Method SW82608 Extraction SW50308 BatchlD 8169 Spiked Sample ID 0308193-010B <br /> Sample Spiked MS* MSO* MS-MSD* LCS LCSD iLCS-LCSD Acceptance Cntena(%) <br /> pg/L pg/L %Rec % ReC %RPD % RBC %ReC %RPD Low High <br /> Methyl-t-butyl ether tM t 8E) ND 10 986 101 273 115 105 865 70 I 130 <br />' %SS1 119 100 108 110 1 1 79 981 102 357 70 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> t <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 /> %Recovery=100*(MS-Sample)!(Amount Spiced) RPD=100*(MS—MSD)!(MS+MSD)'2 <br /> *MS and/a MSD spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is snhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <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 /> analyte content <br />' Laboratory extraction solvents such as meth lone chlonde and acetone may occasionally appear in the method blank at tow levels <br />