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FRIEDMAN & BRUYA, INC. <br /> ! ENVIRONMENTAL CHEMISTS <br /> Date of Report: 06/11/02 <br /> Date Received: 05/23/02 <br /> Project: 6447.001 (US Can) <br /> ! QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF SOIL SAMPLES <br /> FOR TOTAL PETROLEUM HYDROCARBONS AS CRUDE OIL <br /> USING EPA METHOD 8015M <br /> Laboratory Code: 205181.07 (Duplicate) <br /> Relative <br /> Reporting Sample Duplicate Percent Acceptance <br /> y µg g (ppm) <br /> c c Difference Criteria <br /> Analyte nits Result Result D <br /> Crude Oil I m 50 50 nm 0-20 <br /> Laboratory Code: 205181.-07 (Matrix Spike) <br /> Reporting Spike Sample % Recovery Acceptance <br /> 6 Criteria <br /> - <br /> Analyte nits eve Result <br /> MS <br /> Crude Oil n/g (ppm) 250 X50 10 65-135 <br /> Laboratory Code: Laboratory Control Sample <br /> Reporting Spike %Recovery % Recovery Acceptance RPD <br /> Analyte Units Level LCS LCSD Criteria (Limit 20) <br /> Crude Oil I& (ppm) 250 109 103 65-135 6 <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 /> 1 <br /> 28 <br />