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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCarnpbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http/lwww mccampbell com E-mail mamQmccampbelt cam – <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0309344 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 8605 Spiked Sample ID 0309343-002A <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pglL NgIL %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> tent-Amyl methyl ether(TAME) ND 10 979 934 476 100 100 0 70 130 <br /> t-Butyl alcohol(TBA) ND 50 941 925 180 981 993 1 30 70 130 <br /> 1,2-Dibromoethane(EDB) ND 10 121 117 361 1 l5 118 190 70 130 <br />' 1,2-1)tchlomethane(1 2-DCA) ND 10 t19 113 119 116 118 132 70 130 <br /> Drrsopropyl ether(DIPS) ND 10 113 110 260 111 1 I 1 0 70 130 <br /> Ethyl tent-butyl ether(ETBE) ND 10 985 964 2 13 100 996 0 613 70—L 130 <br />' Methyl-t-butyl ether(MTBE) ND 10 100 97 1 3 35 103 102 0 121 70 130 <br /> %SSI ND 100 996 977 186 105 103 139 70 i 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 /> I <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate ICS=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)*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 matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matnx 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 />