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110 2nd Avenue South,4137 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell eom E-mail mam rnimecampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0207222 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 2984 Spiked Sample ID N/A <br /> Compound Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) N/A 60 N/A N/A N/A 925 888 409 80 120 <br />' MTBE N/A 10 NIA N/A NIA 83 1 852 244 80 120 <br /> Benzene NIA 10 N/A N/A N/A 853 84 1 130 80 120 <br />' Toluene NIA 10 N/A N/A N/A 1 895 87 7 199 80 120 <br /> Ethylbenzene N/A 16 N/A NIA N/A 921 90 1 225 80 120 <br /> Xylenes N/A 30 NIA N/A N/A 943 90 470 80 120 <br /> %SS N/AT i100 N/A N/A N/A 97 1 96 8 0 332 80 120 <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 /> 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 sod 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)I(Amount Spiked) RPD=100*(MS—MSD)I(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 amountspiked or b)if that specific sample matrix interferes with spike recovery <br />