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ti <br /> 110 2nd avenue South, #D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:925-798-1620 Fax. 925-798-1622 <br /> QC REPORT FOR =ROCARBON ANALYSES <br /> Date: 08/25/99 Matrix: SOIL <br /> I Concentration (mg/kg) I ( Recovery <br /> Analyte Sample I Amount I RPD I . <br /> I (#11787) MS MSD I Spiked I MS MSD <br /> 1 <br /> I I I I <br /> TPH (gas) I 0.000 2.103 2.092 I 2.03 104 103 0.5 <br /> Benzene I 0 .000 0.198 0.210 I 0.2 99 105 5.9 <br /> Toluene 0.000 0.216 0 .226 0.2 I 108 114 5.4 <br /> I Ethylbenzene 0.000 0.220 0.226 I 0 .2 I 110 113 2-7 <br /> I Xylenes 0.000 0.634 0.654 I 0 .6 I 106 109 3 .1 <br /> I I I I <br /> TPH(diesel) I 0 330 326 I 300 110 109 1.2 I <br /> i I I I <br /> TRPH I 0 .0 23 .4 23 .6 I 20 .8 I 113 113 0 .9 <br /> I (oil and grease) I. <br /> 1 1 I I i <br /> W Rec. = (MS - 'Sample) / amount spiked x 100 <br /> RPD a( (MS - MSD) / (ME + MSD) )x 2 x 100 <br /> } <br />