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110 2nd Avenue South,#D7, Pacheco,CA 94553 <br />' McCAMPBELL ANALYTICAL INC Tele 925-798.1620 Fax 925-798-1622 <br /> • <br /> 1 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> 1 <br />' Date 04/09/99 Matrix AIR <br />' Concentration (ug/L) Recovery <br /> Analyte [Sample Amount RPD C <br /> 1 (#08670) MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 106 0 105 1 f 100 0 106 0 105 1 0 9 <br />' Benzene 0 0 10 1 10 0 10 0 101 0 100 0 1 0 <br /> Toluene 0 0 10 3 10 2 10 0 103 0 102 0 1 0 <br /> Ethyl Benzene 0 0 10 5 10 4 10 0 105 0 104 0 1 0 <br /> Xylenes 0 0 31 2 31 3 30 0 1104 0 103 7 0 3 j <br /> JTPH(diesel) N/A N/A N/A N/A N/A N/A N/A <br /> lie <br /> f <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> f <br /> Ree (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSA) / (MS + MSD) x 2 x 100 <br />