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MCCAMPBELL ANALY'T'ICAL INC 110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> .` Tele 510-798-1620 Fax.510-798-1622 <br /> ti <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 10/28/95 Matrix: Soil <br /> Concentration (mg/kg) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.827 1.802 2.03 90 $9 1 4 <br /> Benzene 0.000 0 192 0.182 0.2 96 91 5.3 <br /> Toluene 0.000 0 198 0.188 0 2 99 94 5 2 <br /> Ethylbenzene 0.000 0 204 0.194 0 2 102 97 5.0 <br /> Xylenes 0.000 0.630 0.600 0 6 105 100 4 9 <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSO) x 2 x 100 <br />