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�. FREEDMAN & BRUYA, INC. <br /> ' ENVIRONrAENTAL CHEMISTS <br /> Date of Report: 12/02/99 <br /> ' Date Received: 11/12/99 <br /> Project: 5380.001 <br /> ' QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF SOIL SAMPLES <br /> FOR TOTAL PETROLEUM HYDROCARBONS AS CRUDE <br /> ' USING EPA METHOD 8015M <br /> Laboratory Code: 911069-07 (Duplicate) <br /> ' <br /> Relative <br /> Reporting Sample Duplicate Percent Acceptance <br /> Analyte Units Result Result Difference Criteria <br /> Crude }lg/g (ppm) <50 <50 nm 0-20 <br /> Laboratory Code: 911069-07 (Matrix Spike) <br /> ' Relative <br /> Reporting Spike Sample % Recovery % Recovery Acceptance Percent <br /> Analyte Units Level Result MS MSD Criteria Difference <br /> Crude µg/g (ppm) 500 <50 104 102 41-170 r 2 <br /> ' Laboratory.Code: Laboratory Control Sample <br /> Relative <br /> Reporting Spike %Recovery %Recovery Acceptance Percent <br /> _Analyte Units Level LCS LCSD Criteria Difference <br /> ' Crude } g/g (ppm) 500 91 105 59-188 15 <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 /> 21 <br />