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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fac 510-798-1622 <br /> I <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 04/28/98 Matrix: SOIL <br /> f { Concentration (mg/kg) { Recovery { <br /> Analyte { Sample Amount RPD { <br /> { 1 (#83156) MS MSD { Spiked { MS MSD { . <br /> TPH (gas) 0.000 2 .016 2 .031 { 2.03 { 99 100 0.7 <br /> Benzene 0.000 0.182 0.186 0.2 91 93 2 .2 <br /> Toluene 0.000 01192 0.198 . 0.2 J 96 99 3 .1 <br /> { Ethylbenzene 0.000 0.184 0 .194 0.2 { 92 97 5.3 <br /> Xylenes 0.000 0.552 0.582 0.6 { 92 97 5.3 <br /> TPH(diesel) 0 288 290 I 300 { 96 97 0.7 <br /> TRPH 0.0 29.4 29.7 I 30 98 99 1.0 { <br /> J (oil and grease) ) { <br /> { <br /> t Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br />