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FRIEDMAN & BRUYA, INC. <br /> ENVIRONMENTAL CHEMISTS <br /> Date of Report: 0$118103 <br /> Date Received: 08/06103 <br /> Project: 6447.001 (U.S. CAN), F&BI 348044 <br /> QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES <br /> FOR BENZENE, TOLUENE, ETHYLBENZENE, <br /> XYLENES AND TPH AS GASOLINE <br /> USING EPA METHODS 8021E AND 8015M <br /> Laboratory Code: 3080-[4-07 (Duplicate) <br /> Relative Percent <br /> Reporting Sample Duplicate Difference <br /> Analyte Units Result Result (Limit 20) <br /> Benzene µgJg (ppm) <0.005 <0.005 nm <br /> Toluene µglg (ppm) <0.005 <0.005 nm <br /> Dthylbenzene µglg (ppm) <0.005 <0.005 nm <br /> Xylenes µgJg (ppm) <0.005 <0.005 nm <br /> Gasoline µgJg (ppm) <1 <1 nm <br /> Laboratory Code: 308044-07 (Matrix Spike) <br /> Percent Percent <br /> Reporting Spike Sample Recovery Recovery Acceptance RP17' <br /> Analyte Units Level Result MS MSD Criteria Limit 20) <br /> Benzene µglg (ppm) 0.5 <0.005 76 84 60.131 10 <br /> Toluene µglg (ppm) 0.5 <0.005 80 88 68.129 10 <br /> Ethylbenzene µgig (ppm) 0.5 <4.005 80 89 69.131 11 <br /> Xylenes 4glg (Ppm) 1.5 <0.005 80 88 69-137 10 <br /> Laboratory Code: Laboratory Control Sample <br /> Percent <br /> Reporting Spike Recovery Acceptance <br /> Analyte Units Level LCS Criteria <br /> Benzene uglg (ppm) 0.5 94 68-116 <br /> Toluene }zglg (ppm) 0.5 94 75-114 <br /> Lthylbenzene µgJg (pprn) 0.5 9G 79.114 <br /> Xylenes µg/g (ppm) 1.5 90 76.122 <br /> Gasoline µglg (ppm) 20 75 51-141 <br /> nm -The analyte was not detected in one or more of the duplicate analyses. 'Therefore, calculation of <br /> the RPD is not applicable. <br /> 16 <br />