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i 110 2nd Avenue South 4D7,Pacheco,CA 94553-5560 McCalnpbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 httpJ/www mccanipbell coin E mail mainca heE ccom i ' QC SUMMARY REPORT FOR SW8260B Matrix W WorkOrder 0304378 ' EPA Method SW8260B Extraction SW50300B BatchlD 6651 Spiked Sample ID 0304378-0010 Sample Spiked MS` MSD` MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena(%} Compound pg/L pg/L %Rec %Rec %RPD %Rec % Rec %RPD Low High Dnsopropyl ether(DWE) ND 10 103 105 165 106 106 0 70 130 iEthyl tart-butyl ether(ETBE) ND 10 92 933 145 989 984 0 364 70 130 Methyl-t-butyl ether(MTBE) 09226 10 798 822 269 93 91 8 127 70 130 i tert-Amyl methyl ether(TAME) ND 10 88 887 0 815 873 868 0 621 70 130 Ethanol ND 500 996 909 912 101 81 1 21 6 70 130 Methanol ND 2500 994 905 935 91 5 91 2 0 392 70 130 i1,2-Dtbromoethane(EDB) ND 10 120 119 0 388 119 120 146 70 130 1,2-Dtchloroethane(1,2-DCA) 3 387 10 112 117 346 118 120 1 53 70 130 i %SS 113 100 110 111 103 109 108 0 69470 130 All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions NONE i i I i r i I MS=Matra Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent Deviation %Recovery=100•(MS-Sample)/(Amount Spiked),RPO=100.(MS—MSD)/(MS+MSD)•2 I -MS and!or MSD spike recoveries may not be near 100%or the RPOs near 0%if a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)if that specific sample matnx interferes with spike recovery NIA=not enough sample to perform matnx spike and matrix spike duplicate 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 matnx or analyte content Laboraloqtextraction solvents such as meth lane chlande and acetone rnay occasionally appear in the method blank at low levels