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2852 Alton Ave Irvine CA 92714 <br /> (714[261 1027 FAX(714)261 1228 <br /> Del Mar Analytical <br /> 1014t CooleyDr Sunc A Colon CA 92324 (909)370 4567 FAX(909)370 1046 <br /> 16525 SAerman Way Suite C 11 Van Nuys CA 91406 (13 18)779 1844 FAX(8 18)779 1843 <br /> ht ♦ t n h n Y r ! ♦ <br /> ` z <br /> CSP bA`TA DEPORT <br /> EPA METHOD 8020 <br /> matrix soil <br /> DATF 10/19/93 <br /> SAMPLE # Blank <br /> MEAN <br /> Analyte R1 Sp MS MSD PRI PR2 RPD PR <br /> PPM ppm Ppm ppm % % % <br /> Benzene 0 050 040 040 80% 80% 00% 80% <br /> Toluene 0 050 042 042 84% 84% 00% 84% <br /> Ethylbenzene 0 050 043 043 86% 86% 00% 86% <br /> Xylenes 0 15 14 1 4 93% 93% 00% 93% <br /> 1 Definition of Terms <br /> R1 Result of Sample Analysis <br /> Sp Spike Concentration Added to Sample <br />' MS Matrix Spike Result <br /> MSD Matrix Spike Duplicate Result <br /> 1 PR1 Percent Recovery of MS, ((MS-R1) / SP) X 100 <br /> IPR2 Percent Recovery of MSD, ((MSD-Ri) / SP) X 100 <br /> RPD Relative Percent Difference, ((MS-MSD)/(MS+MSD)/2)) X 100 <br />' Del Mar Analytical <br />