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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCa7mpbell Analytical IncTelephone 925 798-1620 Fax 925-798-1622 <br /> http llwww mccampbell com E-mail main@mccampbell corn <br /> lie <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> I <br /> Matrix S WorkOrder 0307331 <br /> EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 7874 Spiked Sample ID 0307324-001A <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> mg/Kg mg/Kg %Rec %Rec %RPD %Rec l %Rec %RPD Low High <br /> TPH(btex)c ND 060 995 102 263 98 97 l 0 877 70 130 <br /> MTBE ND 010 105 t00 463 91 3 966 564 70 130 <br /> Benzene ND 0 10 979 972 0 686 933 936 0 347 70 130 <br /> Toluene ND 0 10 969 97 00399 954 952 0 126 70 130 <br /> Etbylbenzene ND 0 10 101 102 0 327 101 101 0 70 130 <br /> Xylenes ND 030 103 103 0 103 103 0 70 130�� <br /> %SS 96 9 100 108 111 2 74 114 110 3 57 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 /> 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) RPD=100*(MS—MSD)!(MS+MSD)*2 <br /> *MS and 1 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 /> E TPH(btex)=sum of 13TEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes 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 />