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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> McCarnpbell Analytical Inc Telephone 925-798 1620 Fax 925-798 1622 <br /> http//www mccampbell corn E-mail mam@mccampbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0212175 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 5249 Spiked Sample ID 0212176-001A <br /> Sample Spiked MS' MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound --- <br />' Ng/L hg/L % Rec % Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 984 995 108 ill Ill 0 300 80 120 <br /> MTBE ND 10 908 974 696 949 104 934 80 120 <br />' Benzene ND 10 99 6 95 9 374 106 104 197 80 —120 <br /> Toluene ND 10 927 893 380 110 108 135 80 120 <br />' Ethylbenzene ND 10 96 933 2 79 108 t06 1 80 80 120 <br /> Xylenes 082 30 899 85 9 4 41 113 110 299 80 120 <br />' MOSS 103 100 102 96 5 5 75 909 904 0 512 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 />' NON>✓ <br /> lie <br /> I <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 soil 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)1(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 />