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' 110 2nd Avenue South kD7 Pacheco,CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http/lv ww mccampbell corn E-mail main mccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0305230 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 6887 Spiked Sample ID 0305173-0108 <br /> CompoundSample Spiked MS' MSD` MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Ng/L ltg/L % Rec %Rec %RPD %Rec %Rec % RPD Low High <br /> Dirsopropyl ether(DIPS) ND 10 104 108 4 I7 109 105 3 88 70 130 <br /> Ethyl tcn-butyl ether(ETBE) ND 10 923 962 4 17 100 962 438 70 130 <br /> Methyl-t-butyl ether(MTBE) 2 349 10 725 81 846 103 935 943 70 130 <br /> tert-Amyl methyl ether(TAME) ND 10 954 959 0 484 102 986 307 70 130 <br /> Ethanol ND 500 109 888 204 901 981 952 70 130 <br /> Methanol ND 2500 98 1 853 140 91 5 909 0 644 70 130 <br /> 1,2-Dibromoethane(EDB) ND 10 113 109 3 00 115 113 201 70 130 <br /> 1,2-Dichloroethane(1,2-DCA) ND 10 I01 102 0 957 104 101 2 55 70 130 <br /> %SS 95 1 too 987 100 160 955 93 1 258 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=100`(MS—MSD)/(MS+MSD)'2 <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 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 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 methylene chloride and acetone ma occasionally appear in the method blank at low levels <br />