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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 /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 09/27/95-09/28/95 Matrix: Soil <br />' Concentration (mg/kg) Amount % Recovery <br /> Analyte RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 2.070 2.038 2.03 102 100 1.6 <br /> Benzene 0.000 0. 192 0.180 0.2 96 90 6.5 <br /> Toluene 0.000 0. 186 0.180 0.2 93 90 3 3 <br /> Ethylbenzene 0.000 0. 186 0.180 0.2 93 90 3.3 <br /> Xylenes 0.000 0 574 0.562 0.6 96 94 2 1 <br /> TPH (diesel) 0 287 290 300 96 97 1. 1 <br /> TRPH 0.0 23.3 23.0 20.8 112 111 1.3 <br /> (oil & grease) <br />' % Rec (MS^- Sad e) / amount spiked x 100 <br /> RPD - (MS MSD) / (MS + MSD) x 2 x 100 <br /> f <br />