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' 110 2nd Avenue South, #D7 Pacheco CA 94553 <br /> F7mcCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> I <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date- 05/25/95 Matrix: Water <br />' <br /> Analyte Concentration (ug/L) Amount Recovery <br /> RPD <br /> Sample MS MSD Spiked MS MSD <br />' TPH (gas) 0.0 100.0 109.4 100 100.0 109.4 9.0 <br /> Benzene O 10.4 10.9 10 104.0 109.0 4.7 <br />' Toluene 0 10.1 10.7 10 101.0 107.0 5.8 <br /> Ethyl Benzene 0 10 10.6 10 100.0 106.0 5.8 <br /> - Xylenes 0 31.1 33.8 30 103.7 112.7 8.3 <br /> 1 TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH 0 24400 24700 23700 103 104 1.2 <br /> (oil & grease) <br /> % Rec. _ (MS - Sempte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />