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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 /> • <br />' QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 06/27/97 Matrix Water <br />' II Concentration (mg/L) % Recovery 1 <br /> Analyte I Sample Amount RPD <br /> 1# (77919) MS MSD Spiked MS MSD <br /> 1 <br /> TPH (gas) I 0 0 110 4 109 7 100 0 110 4 109 7 0 6 <br />' Benzene 0 0 10 0 9 8 10 0 100 0 98 0 2 0 <br /> Toluene 0 0 10 3 l0 1 10 0 103 0 101 0 2 0 <br /> Ethyl Benzene j 0 0 9 7 9 8 , 10 0 97 0 98 0 1 0 <br />' Xylenes I 0 0 29 2 29 8 30 0 97 3 99 3 2 0 <br /> ITPH (diesel) 0 136 138 150 90 92 2 0 <br /> lie I <br /> TRPH 0 26 S 27 2 23 7 I 112 115 2 6 <br /> (oil & grease) <br />' W Rec = (MS - Sample) / amcunc spiked x 100 <br /> RPD = (MS - MSD) / 1MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />