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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 /> • <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 07/02/99-07/03/99 Matrix WATER <br /> Concentration (ug/L) % Recovery <br /> Analyte ISample Amount RPD <br /> 1 (#14490) MS MSD Spiked f MS MSD 1 <br /> I TPH (gas)_ 1 0 0 106 5 104 4 100 0 106 5 104 4 2 0 <br />' Benzene 1 0 0 9 3 9 5 10 0 93 0 95 0 2 1 <br /> Toluene ! 0 0 9 5 9 7 10 0 95 0 97 0 2 1 <br /> Ethyl Benzene j 0 0 9 7 9 8 ! 10 0 97 0 98 0 1 0 <br />' Xylenes 0 0 29 0 29 4 30 0 96 7 98 0 1 4 <br /> ITPH(diesel) 0 0 7485 7226 7500 100 96 3 5 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br />' b Rec (MS - Sample) / amount spiked x 100 <br /> RPD IMS - MSD) / (MS + MSD) x 2 x 100 <br /> t <br />