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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> r <br /> ' QC REPORT <br /> ' Date. 04/21-04/22/92 Matrix: Soil <br /> Concentration (mg/kg) Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br />' TPH (gas) 0.00 2.03 2.02 2.03 100 99 0.6 <br /> Benzene 0.00 0.216 0.214 0.2 108 107 0.9 <br /> Toluene 0.00 0.218 0.212 0.2 109 106 2.8 <br /> Ethyl Benzene 0.00 0.224 0.224 0.2 112 112 0.0 <br />' Xylenes 0.00 0.66 0.662 0.6 110 110 0.3 <br /> TPH (diesel) 0 166 171 150 110 114 3.1 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br />' X Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS t MSD) x 2 x 100 <br />