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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 /> s <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 06/25/99-06/26/99 Matrix WATER <br />' I Concentration (ug/L) % Recovery <br /> Analyte Isample Amount RPD <br /> � (#13920) MS MSD Spiked MS MSD E <br /> I TPH (gas) I 0 0 107 3 107 7 I 100 0 1107 3 107 7 0 4 <br />' Benzene I 0 0 9 8 9 4 I 10 0 I 98 0 94 0 4 2 <br /> Toluene I 0 0 9 8 9 5 I 10 0 I 98 0 95 0 3 1 <br /> Ethyl Benzene I 0 0 10 0 9 7 I 10 0 1100 0 97 0 3 0 <br /> Xylenes I 0 0 29 9 29 2 I 30 0 I 99 7 97 3 2 4 <br /> ITPH(diesel) I 0 0 7323 6913 7500 98 92 5 8 <br /> TRPH I 0 23100 23200 23700 97 98 0 4 <br /> (oil & grease) I I 1 <br />' Rec • (MS - Sample) / amount spiked x 200 <br /> RPD . (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br />