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+ 110 2nd Avenue South,#D7 Pacheco,CA 94553-5560 <br /> F4---MXampbell Analytical Inc [ -- -- Telephone 925 798-1620 Fax 925 798-1622 <br /> h //www niccampbell cam E-mail rmm(a)rnecarMbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> • <br /> Matrix A WorkOrder 0312543 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 9876 Spiked Sample ID NIA <br /> Sample Spiked MS* MSD* MS-MSD" LCS LCSD CS-LCSD Acceptance Cntena(%) <br /> Ng1L pg/L %Rec %Rec % RPD %Rec % Rec %RPD Low High <br /> TPH(btex)£ N/A 60 NIA N/A N/A 882 886 0 468 70 130 <br /> MTBE N/A 10 N/A N/A N/A 93 1 884 5 22 70 130 <br />' Benzene N/A 10 N/A N/A N/A 107 104 324 70 130 <br /> i <br /> Toluene N/A 10 N/A NIA N/A Ill 106 450 70 i 130 <br />' Ethylbenzene N/A 10 NIA NIA N/A 113 102 103 70 130 <br /> Xylenes N/A 30 NIA NIA NIA 110 107 308 70 130 <br />' %SS N/A 100 N/A N/A N/A 112 108 3 85 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 /> I <br /> 1 <br /> I <br /> I <br /> MS M Matrix Spike MSO=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br />' %Recovery=100*(MS Sample)1(Amount Spiked) RPD=100*(MS- MSD)/((MS+MSD)/2) <br /> 'MS and I or MSA spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomagenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> E TPH(btex)=sum of STEX areas from the FID <br /> #cluttered chromatogram sample peak ooelutes with surrogate peak <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 matrix or <br /> arislyto content <br /> I <br />