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r _ <br /> • 1 <br /> 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fa)c 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/24/98-09/25/98 Matrix: SOIL <br /> Concentration (mg/kg) { Recovery <br /> Analyte Sample Amount RPD <br /> C 1 (#90231) MS MSD Spiked MS MSD <br /> TPH (gas) 0 .000 2.058 2.113 2 .03 101 104 2 .6 <br /> Benzene 0 .000 0.200 0.194 ( 0.2 100 97 3 .0 <br /> Toluene 0 .000 0-208 0.208 0.2 f 104 104 0 .0 <br /> Ethylbenzene 0 .000 0.200 0.204 0.2 100 102 2 .0 <br /> Xylenes 0.000 0 .582 0.590 0.6 97 98 1.4 <br /> f TPH(diesel) 0 311 309 300 104 103 0 .7 <br /> TRPH N/A N/A N/A NN/A N/A N/A <br /> (oil and grease) <br /> % Rec. o (MS - Sample) / amount spiked x 100 <br /> RPA (MS - MSD) / %MS + MSD) x 2 x 100 <br />