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110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> WCAMPBELL ANALYTICAL INC. Tele.- 925-798-1620 Fax: 925-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 08/26/99 Matrix: SOIL <br /> I Concentration (mg/kg) I I % Recovery <br /> Analyte I Sample Amount RPD <br /> I I (#08229) MS MSD Spiked MS MSD <br /> I I I I <br />' I TPH (gas) I 0 .000 1.716 1.667 I 2 . 03 I 85 82 2 . 9 I <br /> Benzene I 0 .000 0.160 0 .162 I 0 .2 I BO 81 1 .2 <br /> Toluene I 0 . 000 0.164 0 .168 I 0 .2 I 82 84 2 .4 <br /> Ethylbenzene 0 .000 0 .160 0 . 162 I 0 .2 I 80 81 1 .2 I <br />' I Xylenes 0 .000 0.506 0.504 I 0 .6 I 84 84 0 .4 <br /> TPH(diesel) I 0 335 335 ' 300 I 112 112 0 . 0 <br /> I TRPH I 0 .0 23 . 6 23 .5 I 20.8 I 113 113 0 .4 I <br /> (oil and grease) I I I I <br /> ' Rec. _ (MS - SamPle) / amount spiked x 1DD <br /> ' RPD ={ (MS - MSD) / (Ms + MSD) )x 2 x ioo <br /> r <br />