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' 110 2nd Avenue South,tED7 Pacheco,CA 90.553-5560 <br /> McCampbell Analytical Inc Telephone 925-798 1b20 Fax 425-798 1622 <br />' http!lwww mccampbeE!coin mad main©mccamphell cam <br /> EX' <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0306525 <br />' PPA Method SW8021 BI8015Cm Extraction SW5030B BatchlD 7498 Spiked Sample ID 0306502-010A <br /> Sample Spiked MS" MD"SMS-MSD LCS LCSD LCS-LCSD Acceptance Criteria <br />' pg/L pg/L %Rec %Rec %RPD %Rec % Rec %RPD Low High <br /> 7 P11(btex)e ND 60 103 994 393 108 995 902 70 130 <br />' MTBE ND 10 91 6 913 0 351 99 1 92 744 70 130 <br /> Benzene ND 10 896 879 191 882 894 144 70 130 <br /> Toluene ND 10 95 5 949 0 612 100 957 460 70 130 <br />' Ethylbenzene ND 10 103 101 178 102 102 0 70 130 <br /> Xylenes ND 30 103 100 328 103 107 3 17 70 130 <br />' 6/o5s 103 100 101 101 0 100 99 0 938 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 /> I NONE <br /> 10 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)!(Amount Spiked),RPR=100*(MS—MSD)1(IVIS+MSD)*2 <br /> *MS and 1 or MSD spike recoveries may not be near 100%or the RPOs near 0%d a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specrfic sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> 0 <br /> I #cluttered chromatogram,sample peak eoelutes with surrogate peak <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 />