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110 2nd Avenue South, #D7, Pacheco, CA 9.1553 <br /> ytcCAtlitEELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> • <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 10/08/95 Matrix: Water <br />' <br /> Analyte Concentration (ug/L) Amount % Recovery <br /> RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 106.4 106.0 100 106 106 0.4 <br /> Benzene 0 10 10 5 10 100 0 105.0 4.9 <br />' Toluene 0 10.1 10.6 10 101.0 106.0 4.8 <br /> Ethyl Benzene 0 10 1 10.8 10 101 0 108 0 6.7 <br /> Xylenes 0 31 2 33 4 30 104 0 Ill 3 6.8 <br />' TPH (diesel) N/A N/A N/A A N/A N <br /> / / N/A N/A <br /> TRPH i N/A *4/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> I <br /> I <br /> % Rec = (MS Sampte) / amount spiked x 100 <br />' RPO = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> I <br /> I <br /> • <br /> I <br />