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114 2nd Avenue South,9D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> hap I/www mccampbell com E-mail mam®mccampbell com <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br />' <br /> Matrix A WorkOrder 0208346 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 3574 Spiked Sample ID NIA <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%} <br /> Compound <br />' Ng/L lig/L %Rec % Rec %RPD %Rec %Rec %RPD Low High <br /> TP14(gas) N/A 60 NIA N/A N/A 87 1 937 739 80 120 <br /> MTBE N/A 10 N/A N/A N/A 802 806 0 502 80 120 <br />' Benzene N/A 10 N/A N/A N/A 87 S64 0 769 80 120 <br /> Toluene N/A 10 NIA NIA N/A 916 93 4 195 80 120 <br />' Ethylbenzene NIA 10 N/A NIA NIA 95 S 95 9 0108 80 120 <br /> Xylenes N/A 30 N/A N/A NIA 95 95 0 80 120 <br />' %SS NIA 100 N/A NIA N/A 999 100 0 492 80 120 <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 /> 1 <br /> 1 <br /> 1 <br /> 1 <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 /> N/A=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 matnx or <br /> analyte content <br /> t %Recovery=loo"(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 />