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• 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Lh4cCAMPBELL ANALYTICAL INC. T Tele: 925-798-1620 Fax: 925-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 02/03/99-02/04/99 Matrix: SOIL . <br /> Concentration (mg/kg) % Recovery i <br /> Analyte Sample Amount i RPD <br /> 1 (#95829) MS MSD Spiked MS MSD <br /> TPH (gas) 0 .000 2.241 2 .206 2 .03 110 109 1 .6 <br /> Benzene 0 .000 0 .220 0 .212 0 .2 110 106 3 .7 <br /> Toluene 0 . 000 0.224 0 .218 0 .2 112 109 2 .7 <br /> Ethylbenzene f 0 .000 0.224 0 .214 0 .2 132 107 4 .6 <br /> Xylenes 0 .000 0.646 0 . 618 0 .6 108 1.03 4 .4 <br /> f TPH(diesel) 0 299 299 300 1.00 100 0 .0 <br /> TRPH f 0 . 0 23 .0 23 .6 20 .8 111 113 2 .6 <br /> 1 (oil and grease) ] <br /> t ReC. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / ;MS - MSD) x 2 x 100 <br /> • <br />