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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele 925-798-1620 Fax 925-798-1622 <br /> • <br /> 1 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 03/24/99 Matrix AIR <br />' f Concentration (ug/L) j $ Recovery <br /> Analyte Isample Amount RPD <br /> f <br /> [ (#05050) MS MSD Spiked MS MSD <br /> TPH (gas) 1 0 0 117 2 111 6 100 0 117 2 111 6 4 9 <br />' Benzene 1 0 0 11 3 11 0 10 0 f 113 0 110 0 2 7 <br /> Toluene 1 0 0 11 8 11 3 10 0 118 0 113 0 4 3 <br /> Ethyl Benzene 1 0 0 11 6 11 1 I 10 0 116 0 111 0 4 4 <br /> Xylenes 1 0 0 33 7 32 6 30 0 112 3 108 7 3 3 <br /> 1 I <br /> ITPH(dlesel) I N/A N/A N/A N/A f N/A N/A N/A <br />'• � I 1 I j <br /> TRPH I N/A N/A N/A € N/A f N/A N/A N/A <br />' (oil & grease) <br /> 1 I f I <br /> I <br /> & Rec = (MS - Sample) / amount spaked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> I <br />