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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 06/02/97 Matrix Water <br /> I I Concentration (mg/L) I 1 -W Recovery <br /> Analyte Sample I Amount I RPD <br /> 1 # (76977) MS MSD I Spiked 1 MS MSD 1 <br /> I I I ! 1 1 <br /> TPH (gas) 0 0 107 1 100 5 1 100 0 1 107 1 100 5 6 4 1 <br /> Benzene I 0 0 9 1 8 8 1 10 0 1 91 0 88 0 3 4 1 <br />' Toluene I 0 0 9 5 9 2 1 10 0 1 95 0 92 0 3 2 1 <br /> Ethyl Benzene I 0 0 9 5 9 0 1 10 0 1 95 0 90 0 5 4 1 <br /> 1 Xylenes I 0 0 28 6 26 9 1 30 0 1 95 3 89 7 6 1 1 <br /> ITPH (diesel) 0 143 144 i 150 i 96 96 0 8 <br /> I I I II <br /> 1 TRpg I 0 25400 25100 1 23700 I 107 106 1 2 1 <br /> (oil & grease) I 1 1 1 <br /> I I I I <br /> I <br />' 'k Rec = (MS - Sample) / amount spiked x 100 <br /> i <br /> RPD (MS - MSD) / (f'S + MSD) x 2 x 100 <br /> 1 <br />