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I <br />' 110 2nd Avenue South, #D7, Pacheco CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 925-798-1620 Fax 925-798-1622 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 12/16/98 Matrix WATER <br /> I I concentration (mg/L) I I Recovery <br /> I <br /> Analyte Isample I Amount I RPD 1 <br />' I 1 (#00202) MS MSD I Spiked I MS MSD <br /> 1 1 <br /> I <br /> TPH (gas) 1 0 0 98 7 89 2 1 100 0 1 98 7 89 2 10 3- <br /> Benzene <br /> Benzene 1 0 0 9 9 9 2 1 10 0 1 99 0 92 0 7 3 1 <br /> 1 Toluene 1 0 0 9 7 9 5 1 10 0 1 97 0 95 0 2 1 1 <br />' 1 Ethyl Benzene 1 0 0 9 9 9 7 1 10 0 1 99 0 97 0 2 0 , <br /> 1 Xylenes 1 0 0 29 5 29 3 1 30 0 1 98 2 97 5 0 6 1 <br /> I I I I <br /> I <br /> ITPH(diesel) 1 0 0 164 162 I 150 I 109 108 1 1 1 <br /> I I I 1 <br /> I TRPH 1 N/A N/A N/A 1 N/A 1 N/A N/A N/A } <br /> t 1 (oil & grease) <br /> 1 1 1 1 <br /> 1 <br />' Rec = (MS - Sample) / amount spiked x 100 <br />' R=D = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />