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110 2nd Avenue South PD7 Pacheco CA 94551 5560 <br /> MCCampbell Analytical Inc Telephone 925 798 1620 Fax 925 798 1622 <br /> lett l/www mceam Uell com E-mail ronin a mccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0306142 <br /> EPA Method SW8260B Extraction SW50306 BatchlD 7231 Spiked Sample ID 0306160-001A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pglL uglL % Rec % Rec % RPD %Rec % Rec % RPD Low High <br /> cert-Amyl methyl ether(TAME) ND 10 105 107 1 38 93 8 90 407 70 130 <br /> 1 2 Dibromoethane(EDB) ND 10 119 116 263 120 117 240 70 130 <br /> 1 2-Dichloroethane(I 2-DCA) ND 10 116 115 1 26 114 116 2 13 70 130 <br /> Dllsopropvl ether(DIPS) _ ND l0 108 111 254 107 105 1 32— 70 I 130 <br /> hthyl tert-butyl ether(ETBE) ND 10 �98 2 – 101 3 30 95 9 93 2 2 83 70 I 130 <br /> Methyl-t but}I ether(MTBE) 293 5 10 NR NR NR 897 902 0 570 70 l 130 <br /> %S51 103 100 106 107 113 104 104 0 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 MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=1100*(MS—MSD)/(MS+MSD)'2 <br /> MS and 1 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 orb)if that specific sample matrix interferes with 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 extraction solvents such as meth lene chloride and acetone ma occasional) a ear m the method blank at low levels <br />