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110 2nd Avenue South,4D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http/lwww mrcampbcll com E maul mama mccampbell cam <br /> QC SUMMARY REPORT FOR SW8021.B/8015C1m <br /> Matrix W WorkOrder 0210002 <br />' EPA Method SW8021 B/8015Cm Extraction SW50308 BatchlD 4215 Spiked Sample ID NIA <br /> Sample Spiked I MS* MSD* !MS-MSA* LCS ; LCSD LCS-LCSl7 Acceptance Cnterla(%a) <br />' Compound <br /> Ng/L Ng/L % Rec %Rec % RPD %Rec %Rec %,RPD Low i High <br /> TPH(gas) NIA 60 NIA N/A N/A 101 102 135 80 120 <br />' MTBE NIA 10 N/A N/A N/A 946 924 237 80 120 <br /> Benzene N/A 10 N/A NIA NIA 95 7 95 5 0 175 80 120 <br />' Toluene N/A 10 NIA N/A N/A 978 977 0 138 80 120 <br /> Ethylhenzene N/A 10 NIA N/A N/A 985 956 303 80 120 <br /> Xylenes NIA 30 N/A NIA N/A 100 100 0 80 120 <br />' %SS N/A 100 NIA NIA N/A 889 892 0 437 8o 120 <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 /> lie <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 /> 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 /> %Recovery=100*(MS-Sample)!(Amount Spiked),RPD=100*(MS—MSD)/(MS+MSD)*2 <br /> *MS and 1 or MSD spike recoveries may not be near 100%or the RPDs near 11%it a)the sample is inhomogenous AND contains significant concentrations of <br /> anal to relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />