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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 /> 1 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> 1 <br /> Date 10/16/98-10/17/98 Matrix WATER <br />' Concentration (mg/L) Recovery <br /> Analyte Sample ( Amount RPD <br /> � (»96735) MS MSD Spiked MS MSD <br />' TPH (gas) 0 0 93 3 90 8 100 0 93 3 90 8 2 7 <br /> Benzene 0 0 9 6 9 1 10 0 96 0 91 0 5 3 <br />' Toluene 0 0 9 8 9 3 I 10 0 I 98 0 93 0 5 2 <br /> Ethyl Benzene 0 0 10 1 9 5 10 0 101 0 95 0 6 1 <br /> Xylenes 0 0 30 2 28 8 30 0 100 7 96 0 4 7 <br /> ITPH (dlesel) 1 0 0 130 162 150 87 108 21 4 <br /> • TRPH 0 25900 21404 23700 109 89 20 9 <br /> (oil & grease) f <br /> Rec = (MS - Samnle' / amount sp-ked x 100 <br /> RPD _ ,MS - MSD) / uS + MSD} x 2 x 106 <br /> 1 <br />