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`y _I <br /> 110 2nd Avenue So D7,Pacheco,CA 94553 <br /> McCAWBELL ANALYMAL INC Tele:510- IAM Fac 510-798-1622 <br /> i� <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 05/27/94 Hatrix: Soil <br /> Concentration (mg/kg) Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked HS MSD <br /> TPP (gas) 0.000 1.668 1.632 2.03 82 80 2.2 <br /> Benzene 0.000 0.168 0.172 0.2 84 86 2.4 <br /> Toluene 0.000 0.168 0.172 0.2 84 86 X.4 <br /> Ethylbenzene 0.000 0.174 0.176 0.2 87 88 1.1 <br /> Xylenes 0.000 0.530 0.536 0.6 88 89 1.1 <br /> TPH (diesel) 0 328 330 300 109 110 0.8 <br /> TRPH 0.0 37 0 37.2 40 93 93 0.5 <br /> (oil & grease) <br /> % Rec = (MS - Sad e) / amount spikes~ x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />